Erik Andersen | c7c634b | 2000-03-19 05:28:55 +0000 | [diff] [blame] | 1 | /* vi: set sw=4 ts=4: */ |
Erik Andersen | 13456d1 | 2000-03-16 08:09:57 +0000 | [diff] [blame] | 2 | /* |
Denys Vlasenko | 57ea9b4 | 2010-09-03 12:51:36 +0200 | [diff] [blame] | 3 | * Command line editing. |
Erik Andersen | 13456d1 | 2000-03-16 08:09:57 +0000 | [diff] [blame] | 4 | * |
Eric Andersen | 81fe123 | 2003-07-29 06:38:40 +0000 | [diff] [blame] | 5 | * Copyright (c) 1986-2003 may safely be consumed by a BSD or GPL license. |
Eric Andersen | 7467c8d | 2001-07-12 20:26:32 +0000 | [diff] [blame] | 6 | * Written by: Vladimir Oleynik <dzo@simtreas.ru> |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 7 | * |
| 8 | * Used ideas: |
| 9 | * Adam Rogoyski <rogoyski@cs.utexas.edu> |
| 10 | * Dave Cinege <dcinege@psychosis.com> |
| 11 | * Jakub Jelinek (c) 1995 |
Eric Andersen | 81fe123 | 2003-07-29 06:38:40 +0000 | [diff] [blame] | 12 | * Erik Andersen <andersen@codepoet.org> (Majorly adjusted for busybox) |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 13 | * |
Erik Andersen | 13456d1 | 2000-03-16 08:09:57 +0000 | [diff] [blame] | 14 | * This code is 'as is' with no warranty. |
Erik Andersen | 13456d1 | 2000-03-16 08:09:57 +0000 | [diff] [blame] | 15 | */ |
Erik Andersen | 13456d1 | 2000-03-16 08:09:57 +0000 | [diff] [blame] | 16 | /* |
Denis Vlasenko | 78ff819 | 2008-06-28 21:03:43 +0000 | [diff] [blame] | 17 | * Usage and known bugs: |
Denys Vlasenko | a17eeb8 | 2009-10-25 23:50:56 +0100 | [diff] [blame] | 18 | * Terminal key codes are not extensive, more needs to be added. |
| 19 | * This version was created on Debian GNU/Linux 2.x. |
Denis Vlasenko | 78ff819 | 2008-06-28 21:03:43 +0000 | [diff] [blame] | 20 | * Delete, Backspace, Home, End, and the arrow keys were tested |
| 21 | * to work in an Xterm and console. Ctrl-A also works as Home. |
| 22 | * Ctrl-E also works as End. |
| 23 | * |
Denys Vlasenko | a17eeb8 | 2009-10-25 23:50:56 +0100 | [diff] [blame] | 24 | * The following readline-like commands are not implemented: |
Denys Vlasenko | a17eeb8 | 2009-10-25 23:50:56 +0100 | [diff] [blame] | 25 | * CTL-t -- Transpose two characters |
| 26 | * |
Denis Vlasenko | 78ff819 | 2008-06-28 21:03:43 +0000 | [diff] [blame] | 27 | * lineedit does not know that the terminal escape sequences do not |
| 28 | * take up space on the screen. The redisplay code assumes, unless |
| 29 | * told otherwise, that each character in the prompt is a printable |
| 30 | * character that takes up one character position on the screen. |
| 31 | * You need to tell lineedit that some sequences of characters |
| 32 | * in the prompt take up no screen space. Compatibly with readline, |
| 33 | * use the \[ escape to begin a sequence of non-printing characters, |
| 34 | * and the \] escape to signal the end of such a sequence. Example: |
| 35 | * |
| 36 | * PS1='\[\033[01;32m\]\u@\h\[\033[01;34m\] \w \$\[\033[00m\] ' |
Denys Vlasenko | e66a56d | 2013-08-19 16:45:04 +0200 | [diff] [blame] | 37 | * |
| 38 | * Unicode in PS1 is not fully supported: prompt length calulation is wrong, |
| 39 | * resulting in line wrap problems with long (multi-line) input. |
Erik Andersen | 13456d1 | 2000-03-16 08:09:57 +0000 | [diff] [blame] | 40 | */ |
Ron Yorston | f23264b | 2015-05-29 11:31:40 +0100 | [diff] [blame] | 41 | #include "busybox.h" |
| 42 | #include "NUM_APPLETS.h" |
Denys Vlasenko | 42a8fd0 | 2009-07-11 21:36:13 +0200 | [diff] [blame] | 43 | #include "unicode.h" |
Alexey Fomenko | 232ebaa | 2011-05-20 04:26:29 +0200 | [diff] [blame] | 44 | #ifndef _POSIX_VDISABLE |
| 45 | # define _POSIX_VDISABLE '\0' |
| 46 | #endif |
| 47 | |
Glenn L McGrath | 475820c | 2004-01-22 12:42:23 +0000 | [diff] [blame] | 48 | |
Glenn L McGrath | 3b25185 | 2004-01-03 12:07:32 +0000 | [diff] [blame] | 49 | #ifdef TEST |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 50 | # define ENABLE_FEATURE_EDITING 0 |
| 51 | # define ENABLE_FEATURE_TAB_COMPLETION 0 |
| 52 | # define ENABLE_FEATURE_USERNAME_COMPLETION 0 |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 53 | #endif |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 54 | |
Eric Andersen | 5165fbe | 2001-02-20 06:42:29 +0000 | [diff] [blame] | 55 | |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 56 | /* Entire file (except TESTing part) sits inside this #if */ |
Denis Vlasenko | 38f6319 | 2007-01-22 09:03:07 +0000 | [diff] [blame] | 57 | #if ENABLE_FEATURE_EDITING |
Erik Andersen | 13456d1 | 2000-03-16 08:09:57 +0000 | [diff] [blame] | 58 | |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 59 | |
Denys Vlasenko | a97a795 | 2020-12-16 11:14:08 +0100 | [diff] [blame] | 60 | #if !ENABLE_SHELL_ASH && !ENABLE_SHELL_HUSH |
| 61 | /* so far only shells use these features */ |
| 62 | # undef ENABLE_FEATURE_EDITING_FANCY_PROMPT |
| 63 | # undef ENABLE_FEATURE_TAB_COMPLETION |
| 64 | # undef ENABLE_FEATURE_USERNAME_COMPLETION |
| 65 | # define ENABLE_FEATURE_EDITING_FANCY_PROMPT 0 |
| 66 | # define ENABLE_FEATURE_TAB_COMPLETION 0 |
| 67 | # define ENABLE_FEATURE_USERNAME_COMPLETION 0 |
| 68 | #endif |
| 69 | |
| 70 | |
Denys Vlasenko | b9e35dc | 2010-07-18 22:21:24 +0200 | [diff] [blame] | 71 | #define ENABLE_USERNAME_OR_HOMEDIR \ |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 72 | (ENABLE_FEATURE_USERNAME_COMPLETION || ENABLE_FEATURE_EDITING_FANCY_PROMPT) |
Denys Vlasenko | b9e35dc | 2010-07-18 22:21:24 +0200 | [diff] [blame] | 73 | #if ENABLE_USERNAME_OR_HOMEDIR |
Denys Vlasenko | b9e35dc | 2010-07-18 22:21:24 +0200 | [diff] [blame] | 74 | # define IF_USERNAME_OR_HOMEDIR(...) __VA_ARGS__ |
Denys Vlasenko | a97a795 | 2020-12-16 11:14:08 +0100 | [diff] [blame] | 75 | #else |
| 76 | # define IF_USERNAME_OR_HOMEDIR(...) /*nothing*/ |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 77 | #endif |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 78 | |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 79 | |
| 80 | #undef CHAR_T |
Denys Vlasenko | 19158a8 | 2010-03-26 14:06:56 +0100 | [diff] [blame] | 81 | #if ENABLE_UNICODE_SUPPORT |
Tomas Heinrich | a659b81 | 2010-04-29 13:43:39 +0200 | [diff] [blame] | 82 | # define BB_NUL ((wchar_t)0) |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 83 | # define CHAR_T wchar_t |
Denys Vlasenko | 8c317f0 | 2019-05-14 17:26:47 +0200 | [diff] [blame] | 84 | static bool BB_isspace(CHAR_T c) |
| 85 | { |
| 86 | return ((unsigned)c < 256 && isspace(c)); |
| 87 | } |
Denys Vlasenko | 31e2e7b | 2009-12-12 02:42:35 +0100 | [diff] [blame] | 88 | # if ENABLE_FEATURE_EDITING_VI |
Denys Vlasenko | 8c317f0 | 2019-05-14 17:26:47 +0200 | [diff] [blame] | 89 | static bool BB_isalnum_or_underscore(CHAR_T c) |
| 90 | { |
Natanael Copa | 7e6f931 | 2016-08-14 23:30:29 +0200 | [diff] [blame] | 91 | return ((unsigned)c < 256 && isalnum(c)) || c == '_'; |
| 92 | } |
Denys Vlasenko | 31e2e7b | 2009-12-12 02:42:35 +0100 | [diff] [blame] | 93 | # endif |
Denys Vlasenko | 8c317f0 | 2019-05-14 17:26:47 +0200 | [diff] [blame] | 94 | static bool BB_ispunct(CHAR_T c) |
| 95 | { |
| 96 | return ((unsigned)c < 256 && ispunct(c)); |
| 97 | } |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 98 | # undef isspace |
| 99 | # undef isalnum |
| 100 | # undef ispunct |
| 101 | # undef isprint |
| 102 | # define isspace isspace_must_not_be_used |
| 103 | # define isalnum isalnum_must_not_be_used |
| 104 | # define ispunct ispunct_must_not_be_used |
| 105 | # define isprint isprint_must_not_be_used |
| 106 | #else |
| 107 | # define BB_NUL '\0' |
| 108 | # define CHAR_T char |
| 109 | # define BB_isspace(c) isspace(c) |
Natanael Copa | 7e6f931 | 2016-08-14 23:30:29 +0200 | [diff] [blame] | 110 | # if ENABLE_FEATURE_EDITING_VI |
Denys Vlasenko | 82d1c1f | 2017-12-31 17:30:02 +0100 | [diff] [blame] | 111 | static bool BB_isalnum_or_underscore(CHAR_T c) |
| 112 | { |
Denys Vlasenko | d5314e7 | 2020-06-24 09:31:30 +0200 | [diff] [blame] | 113 | return isalnum(c) || c == '_'; |
Natanael Copa | 7e6f931 | 2016-08-14 23:30:29 +0200 | [diff] [blame] | 114 | } |
| 115 | # endif |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 116 | # define BB_ispunct(c) ispunct(c) |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 117 | #endif |
Denys Vlasenko | b9e35dc | 2010-07-18 22:21:24 +0200 | [diff] [blame] | 118 | #if ENABLE_UNICODE_PRESERVE_BROKEN |
| 119 | # define unicode_mark_raw_byte(wc) ((wc) | 0x20000000) |
| 120 | # define unicode_is_raw_byte(wc) ((wc) & 0x20000000) |
| 121 | #else |
| 122 | # define unicode_is_raw_byte(wc) 0 |
| 123 | #endif |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 124 | |
| 125 | |
Marek Polacek | 7b18107 | 2010-10-28 21:34:56 +0200 | [diff] [blame] | 126 | #define ESC "\033" |
| 127 | |
| 128 | #define SEQ_CLEAR_TILL_END_OF_SCREEN ESC"[J" |
| 129 | //#define SEQ_CLEAR_TILL_END_OF_LINE ESC"[K" |
Tomas Heinrich | a659b81 | 2010-04-29 13:43:39 +0200 | [diff] [blame] | 130 | |
| 131 | |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 132 | enum { |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 133 | MAX_LINELEN = CONFIG_FEATURE_EDITING_MAX_LEN < 0x7ff0 |
Denis Vlasenko | 6b40443 | 2008-01-07 16:13:14 +0000 | [diff] [blame] | 134 | ? CONFIG_FEATURE_EDITING_MAX_LEN |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 135 | : 0x7ff0 |
| 136 | }; |
Robert Griebl | 350d26b | 2002-12-03 22:45:46 +0000 | [diff] [blame] | 137 | |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 138 | /* We try to minimize both static and stack usage. */ |
Denis Vlasenko | 5d89fba | 2008-04-22 00:08:27 +0000 | [diff] [blame] | 139 | struct lineedit_statics { |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 140 | line_input_t *state; |
Erik Andersen | 8ea7d8c | 2000-05-20 00:40:08 +0000 | [diff] [blame] | 141 | |
Denys Vlasenko | bff71d3 | 2016-11-27 22:25:07 +0100 | [diff] [blame] | 142 | unsigned cmdedit_termw; /* = 80; */ /* actual terminal width */ |
Mark Whitley | 4e33875 | 2001-01-26 20:42:23 +0000 | [diff] [blame] | 143 | |
Denys Vlasenko | 020f406 | 2009-05-17 16:44:54 +0200 | [diff] [blame] | 144 | unsigned cmdedit_x; /* real x (col) terminal position */ |
| 145 | unsigned cmdedit_y; /* pseudoreal y (row) terminal position */ |
Avi Halachmi | 0fd5dbb | 2017-10-12 16:38:35 +0200 | [diff] [blame] | 146 | unsigned cmdedit_prmt_len; /* on-screen length of last/sole prompt line */ |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 147 | |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 148 | unsigned cursor; |
Denys Vlasenko | 2f3f09c | 2009-09-29 00:00:12 +0200 | [diff] [blame] | 149 | int command_len; /* must be signed */ |
| 150 | /* signed maxsize: we want x in "if (x > S.maxsize)" |
Denys Vlasenko | 044b180 | 2009-07-12 02:50:35 +0200 | [diff] [blame] | 151 | * to _not_ be promoted to unsigned */ |
| 152 | int maxsize; |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 153 | CHAR_T *command_ps; |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 154 | |
| 155 | const char *cmdedit_prompt; |
Avi Halachmi | 0fd5dbb | 2017-10-12 16:38:35 +0200 | [diff] [blame] | 156 | const char *prompt_last_line; /* last/sole prompt line */ |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 157 | |
Denys Vlasenko | b9e35dc | 2010-07-18 22:21:24 +0200 | [diff] [blame] | 158 | #if ENABLE_USERNAME_OR_HOMEDIR |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 159 | char *user_buf; |
Denys Vlasenko | f4fcd74 | 2021-10-11 23:08:31 +0200 | [diff] [blame] | 160 | char *home_pwd_buf; |
| 161 | smallint got_user_strings; |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 162 | #endif |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 163 | |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 164 | #if ENABLE_FEATURE_TAB_COMPLETION |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 165 | unsigned num_matches; |
Denys Vlasenko | f4fcd74 | 2021-10-11 23:08:31 +0200 | [diff] [blame] | 166 | char **matches; |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 167 | #endif |
| 168 | |
Ron Yorston | 2328690 | 2018-02-25 20:09:54 +0100 | [diff] [blame] | 169 | #if ENABLE_FEATURE_EDITING_WINCH |
Denys Vlasenko | bff71d3 | 2016-11-27 22:25:07 +0100 | [diff] [blame] | 170 | unsigned SIGWINCH_saved; |
| 171 | volatile unsigned SIGWINCH_count; |
| 172 | volatile smallint ok_to_redraw; |
Ron Yorston | 2328690 | 2018-02-25 20:09:54 +0100 | [diff] [blame] | 173 | #endif |
Denys Vlasenko | bff71d3 | 2016-11-27 22:25:07 +0100 | [diff] [blame] | 174 | |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 175 | #if ENABLE_FEATURE_EDITING_VI |
Denys Vlasenko | b9e35dc | 2010-07-18 22:21:24 +0200 | [diff] [blame] | 176 | # define DELBUFSIZ 128 |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 177 | smallint newdelflag; /* whether delbuf should be reused yet */ |
Denys Vlasenko | bff71d3 | 2016-11-27 22:25:07 +0100 | [diff] [blame] | 178 | CHAR_T *delptr; |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 179 | CHAR_T delbuf[DELBUFSIZ]; /* a place to store deleted characters */ |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 180 | #endif |
Denys Vlasenko | eb62d7c | 2009-10-27 10:34:06 +0100 | [diff] [blame] | 181 | #if ENABLE_FEATURE_EDITING_ASK_TERMINAL |
Denys Vlasenko | d83bbf4 | 2009-10-27 10:47:49 +0100 | [diff] [blame] | 182 | smallint sent_ESC_br6n; |
Denys Vlasenko | eb62d7c | 2009-10-27 10:34:06 +0100 | [diff] [blame] | 183 | #endif |
Denys Vlasenko | bff71d3 | 2016-11-27 22:25:07 +0100 | [diff] [blame] | 184 | |
Ron Yorston | 2328690 | 2018-02-25 20:09:54 +0100 | [diff] [blame] | 185 | #if ENABLE_FEATURE_EDITING_WINCH |
Denys Vlasenko | bff71d3 | 2016-11-27 22:25:07 +0100 | [diff] [blame] | 186 | /* Largish struct, keeping it last results in smaller code */ |
| 187 | struct sigaction SIGWINCH_handler; |
Ron Yorston | 2328690 | 2018-02-25 20:09:54 +0100 | [diff] [blame] | 188 | #endif |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 189 | }; |
| 190 | |
Denis Vlasenko | 5d89fba | 2008-04-22 00:08:27 +0000 | [diff] [blame] | 191 | /* See lineedit_ptr_hack.c */ |
YU Jincheng | 1f92503 | 2021-09-29 17:37:26 +0800 | [diff] [blame] | 192 | extern struct lineedit_statics *BB_GLOBAL_CONST lineedit_ptr_to_statics; |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 193 | |
Denis Vlasenko | 5d89fba | 2008-04-22 00:08:27 +0000 | [diff] [blame] | 194 | #define S (*lineedit_ptr_to_statics) |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 195 | #define state (S.state ) |
| 196 | #define cmdedit_termw (S.cmdedit_termw ) |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 197 | #define cmdedit_x (S.cmdedit_x ) |
| 198 | #define cmdedit_y (S.cmdedit_y ) |
| 199 | #define cmdedit_prmt_len (S.cmdedit_prmt_len) |
| 200 | #define cursor (S.cursor ) |
| 201 | #define command_len (S.command_len ) |
| 202 | #define command_ps (S.command_ps ) |
| 203 | #define cmdedit_prompt (S.cmdedit_prompt ) |
Avi Halachmi | 0fd5dbb | 2017-10-12 16:38:35 +0200 | [diff] [blame] | 204 | #define prompt_last_line (S.prompt_last_line) |
Denis Vlasenko | f7be20e | 2007-12-24 14:09:19 +0000 | [diff] [blame] | 205 | #define user_buf (S.user_buf ) |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 206 | #define home_pwd_buf (S.home_pwd_buf ) |
Denys Vlasenko | f4fcd74 | 2021-10-11 23:08:31 +0200 | [diff] [blame] | 207 | #define got_user_strings (S.got_user_strings) |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 208 | #define num_matches (S.num_matches ) |
Denys Vlasenko | f4fcd74 | 2021-10-11 23:08:31 +0200 | [diff] [blame] | 209 | #define matches (S.matches ) |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 210 | #define delptr (S.delptr ) |
| 211 | #define newdelflag (S.newdelflag ) |
| 212 | #define delbuf (S.delbuf ) |
| 213 | |
| 214 | #define INIT_S() do { \ |
YU Jincheng | 5156b24 | 2021-10-10 02:19:51 +0800 | [diff] [blame] | 215 | XZALLOC_CONST_PTR(&lineedit_ptr_to_statics, sizeof(S)); \ |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 216 | } while (0) |
Alexey Fomenko | 232ebaa | 2011-05-20 04:26:29 +0200 | [diff] [blame] | 217 | |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 218 | static void deinit_S(void) |
| 219 | { |
| 220 | #if ENABLE_FEATURE_EDITING_FANCY_PROMPT |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 221 | /* This one is allocated only if FANCY_PROMPT is on |
Denys Vlasenko | 57ea9b4 | 2010-09-03 12:51:36 +0200 | [diff] [blame] | 222 | * (otherwise it points to verbatim prompt (NOT malloced)) */ |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 223 | free((char*)cmdedit_prompt); |
| 224 | #endif |
Denys Vlasenko | b9e35dc | 2010-07-18 22:21:24 +0200 | [diff] [blame] | 225 | #if ENABLE_USERNAME_OR_HOMEDIR |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 226 | free(user_buf); |
Denys Vlasenko | f4fcd74 | 2021-10-11 23:08:31 +0200 | [diff] [blame] | 227 | free(home_pwd_buf); |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 228 | #endif |
Denis Vlasenko | 5d89fba | 2008-04-22 00:08:27 +0000 | [diff] [blame] | 229 | free(lineedit_ptr_to_statics); |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 230 | } |
| 231 | #define DEINIT_S() deinit_S() |
| 232 | |
Denis Vlasenko | 2c84495 | 2008-04-25 18:44:35 +0000 | [diff] [blame] | 233 | |
Denys Vlasenko | f4fcd74 | 2021-10-11 23:08:31 +0200 | [diff] [blame] | 234 | #if ENABLE_USERNAME_OR_HOMEDIR |
| 235 | /* Call getpwuid() only if necessary. |
| 236 | * E.g. if PS1=':', no user database reading is needed to generate prompt. |
| 237 | * (Unfortunately, default PS1='\w \$' needs it, \w abbreviates homedir |
| 238 | * as ~/... - for that it needs to *know* the homedir...) |
| 239 | */ |
| 240 | static void get_user_strings(void) |
| 241 | { |
| 242 | struct passwd *entry; |
| 243 | |
| 244 | got_user_strings = 1; |
| 245 | entry = getpwuid(geteuid()); |
| 246 | if (entry) { |
| 247 | user_buf = xstrdup(entry->pw_name); |
| 248 | home_pwd_buf = xstrdup(entry->pw_dir); |
| 249 | } |
| 250 | } |
| 251 | |
| 252 | static const char *get_username_str(void) |
| 253 | { |
| 254 | if (!got_user_strings) |
| 255 | get_user_strings(); |
| 256 | return user_buf ? user_buf : ""; |
| 257 | /* btw, bash uses "I have no name!" string if uid has no entry */ |
| 258 | } |
| 259 | |
| 260 | static NOINLINE const char *get_homedir_or_NULL(void) |
| 261 | { |
| 262 | if (!got_user_strings) |
| 263 | get_user_strings(); |
| 264 | return home_pwd_buf; |
| 265 | } |
| 266 | #endif |
| 267 | |
Denys Vlasenko | 19158a8 | 2010-03-26 14:06:56 +0100 | [diff] [blame] | 268 | #if ENABLE_UNICODE_SUPPORT |
Denys Vlasenko | a669eca | 2011-07-11 07:36:59 +0200 | [diff] [blame] | 269 | static size_t load_string(const char *src) |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 270 | { |
Denys Vlasenko | 353680a | 2011-03-27 01:18:07 +0100 | [diff] [blame] | 271 | if (unicode_status == UNICODE_ON) { |
Denys Vlasenko | a669eca | 2011-07-11 07:36:59 +0200 | [diff] [blame] | 272 | ssize_t len = mbstowcs(command_ps, src, S.maxsize - 1); |
Denys Vlasenko | 353680a | 2011-03-27 01:18:07 +0100 | [diff] [blame] | 273 | if (len < 0) |
| 274 | len = 0; |
| 275 | command_ps[len] = BB_NUL; |
| 276 | return len; |
| 277 | } else { |
| 278 | unsigned i = 0; |
Denys Vlasenko | a669eca | 2011-07-11 07:36:59 +0200 | [diff] [blame] | 279 | while (src[i] && i < S.maxsize - 1) { |
| 280 | command_ps[i] = src[i]; |
Denys Vlasenko | 353680a | 2011-03-27 01:18:07 +0100 | [diff] [blame] | 281 | i++; |
Denys Vlasenko | a669eca | 2011-07-11 07:36:59 +0200 | [diff] [blame] | 282 | } |
| 283 | command_ps[i] = BB_NUL; |
Denys Vlasenko | 353680a | 2011-03-27 01:18:07 +0100 | [diff] [blame] | 284 | return i; |
| 285 | } |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 286 | } |
Tomas Heinrich | a659b81 | 2010-04-29 13:43:39 +0200 | [diff] [blame] | 287 | static unsigned save_string(char *dst, unsigned maxsize) |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 288 | { |
Denys Vlasenko | 353680a | 2011-03-27 01:18:07 +0100 | [diff] [blame] | 289 | if (unicode_status == UNICODE_ON) { |
Denys Vlasenko | 94043e8 | 2010-05-11 14:49:13 +0200 | [diff] [blame] | 290 | # if !ENABLE_UNICODE_PRESERVE_BROKEN |
Denys Vlasenko | 353680a | 2011-03-27 01:18:07 +0100 | [diff] [blame] | 291 | ssize_t len = wcstombs(dst, command_ps, maxsize - 1); |
| 292 | if (len < 0) |
| 293 | len = 0; |
| 294 | dst[len] = '\0'; |
| 295 | return len; |
Denys Vlasenko | 94043e8 | 2010-05-11 14:49:13 +0200 | [diff] [blame] | 296 | # else |
Denys Vlasenko | 353680a | 2011-03-27 01:18:07 +0100 | [diff] [blame] | 297 | unsigned dstpos = 0; |
| 298 | unsigned srcpos = 0; |
Tomas Heinrich | a659b81 | 2010-04-29 13:43:39 +0200 | [diff] [blame] | 299 | |
Denys Vlasenko | 353680a | 2011-03-27 01:18:07 +0100 | [diff] [blame] | 300 | maxsize--; |
| 301 | while (dstpos < maxsize) { |
| 302 | wchar_t wc; |
| 303 | int n = srcpos; |
Denys Vlasenko | b068bd7 | 2010-09-02 12:01:11 +0200 | [diff] [blame] | 304 | |
Denys Vlasenko | 353680a | 2011-03-27 01:18:07 +0100 | [diff] [blame] | 305 | /* Convert up to 1st invalid byte (or up to end) */ |
| 306 | while ((wc = command_ps[srcpos]) != BB_NUL |
| 307 | && !unicode_is_raw_byte(wc) |
| 308 | ) { |
| 309 | srcpos++; |
| 310 | } |
| 311 | command_ps[srcpos] = BB_NUL; |
| 312 | n = wcstombs(dst + dstpos, command_ps + n, maxsize - dstpos); |
| 313 | if (n < 0) /* should not happen */ |
| 314 | break; |
| 315 | dstpos += n; |
| 316 | if (wc == BB_NUL) /* usually is */ |
| 317 | break; |
| 318 | |
| 319 | /* We do have invalid byte here! */ |
| 320 | command_ps[srcpos] = wc; /* restore it */ |
Tomas Heinrich | a659b81 | 2010-04-29 13:43:39 +0200 | [diff] [blame] | 321 | srcpos++; |
Denys Vlasenko | 353680a | 2011-03-27 01:18:07 +0100 | [diff] [blame] | 322 | if (dstpos == maxsize) |
| 323 | break; |
| 324 | dst[dstpos++] = (char) wc; |
Tomas Heinrich | a659b81 | 2010-04-29 13:43:39 +0200 | [diff] [blame] | 325 | } |
Denys Vlasenko | 353680a | 2011-03-27 01:18:07 +0100 | [diff] [blame] | 326 | dst[dstpos] = '\0'; |
| 327 | return dstpos; |
Denys Vlasenko | 94043e8 | 2010-05-11 14:49:13 +0200 | [diff] [blame] | 328 | # endif |
Denys Vlasenko | 353680a | 2011-03-27 01:18:07 +0100 | [diff] [blame] | 329 | } else { |
| 330 | unsigned i = 0; |
| 331 | while ((dst[i] = command_ps[i]) != 0) |
| 332 | i++; |
| 333 | return i; |
| 334 | } |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 335 | } |
| 336 | /* I thought just fputwc(c, stdout) would work. But no... */ |
| 337 | static void BB_PUTCHAR(wchar_t c) |
| 338 | { |
Denys Vlasenko | 353680a | 2011-03-27 01:18:07 +0100 | [diff] [blame] | 339 | if (unicode_status == UNICODE_ON) { |
| 340 | char buf[MB_CUR_MAX + 1]; |
| 341 | mbstate_t mbst = { 0 }; |
| 342 | ssize_t len = wcrtomb(buf, c, &mbst); |
| 343 | if (len > 0) { |
| 344 | buf[len] = '\0'; |
Ron Yorston | cad3fc7 | 2021-02-03 20:47:14 +0100 | [diff] [blame] | 345 | fputs_stdout(buf); |
Denys Vlasenko | 353680a | 2011-03-27 01:18:07 +0100 | [diff] [blame] | 346 | } |
| 347 | } else { |
| 348 | /* In this case, c is always one byte */ |
| 349 | putchar(c); |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 350 | } |
| 351 | } |
Tomas Heinrich | b8909c5 | 2010-05-16 20:46:53 +0200 | [diff] [blame] | 352 | # if ENABLE_UNICODE_COMBINING_WCHARS || ENABLE_UNICODE_WIDE_WCHARS |
| 353 | static wchar_t adjust_width_and_validate_wc(unsigned *width_adj, wchar_t wc) |
| 354 | # else |
| 355 | static wchar_t adjust_width_and_validate_wc(wchar_t wc) |
| 356 | # define adjust_width_and_validate_wc(width_adj, wc) \ |
| 357 | ((*(width_adj))++, adjust_width_and_validate_wc(wc)) |
| 358 | # endif |
| 359 | { |
| 360 | int w = 1; |
| 361 | |
| 362 | if (unicode_status == UNICODE_ON) { |
Denys Vlasenko | 26e2c1d | 2010-05-16 21:15:03 +0200 | [diff] [blame] | 363 | if (wc > CONFIG_LAST_SUPPORTED_WCHAR) { |
| 364 | /* note: also true for unicode_is_raw_byte(wc) */ |
Tomas Heinrich | b8909c5 | 2010-05-16 20:46:53 +0200 | [diff] [blame] | 365 | goto subst; |
| 366 | } |
| 367 | w = wcwidth(wc); |
| 368 | if ((ENABLE_UNICODE_COMBINING_WCHARS && w < 0) |
| 369 | || (!ENABLE_UNICODE_COMBINING_WCHARS && w <= 0) |
| 370 | || (!ENABLE_UNICODE_WIDE_WCHARS && w > 1) |
| 371 | ) { |
| 372 | subst: |
| 373 | w = 1; |
| 374 | wc = CONFIG_SUBST_WCHAR; |
| 375 | } |
| 376 | } |
| 377 | |
| 378 | # if ENABLE_UNICODE_COMBINING_WCHARS || ENABLE_UNICODE_WIDE_WCHARS |
| 379 | *width_adj += w; |
| 380 | #endif |
| 381 | return wc; |
| 382 | } |
| 383 | #else /* !UNICODE */ |
Denys Vlasenko | a669eca | 2011-07-11 07:36:59 +0200 | [diff] [blame] | 384 | static size_t load_string(const char *src) |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 385 | { |
Denys Vlasenko | a669eca | 2011-07-11 07:36:59 +0200 | [diff] [blame] | 386 | safe_strncpy(command_ps, src, S.maxsize); |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 387 | return strlen(command_ps); |
| 388 | } |
Denys Vlasenko | 9038d6f | 2009-07-15 20:02:19 +0200 | [diff] [blame] | 389 | # if ENABLE_FEATURE_TAB_COMPLETION |
Tomas Heinrich | a659b81 | 2010-04-29 13:43:39 +0200 | [diff] [blame] | 390 | static void save_string(char *dst, unsigned maxsize) |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 391 | { |
| 392 | safe_strncpy(dst, command_ps, maxsize); |
| 393 | } |
Denys Vlasenko | 7dd0ce4 | 2009-07-15 18:27:47 +0200 | [diff] [blame] | 394 | # endif |
| 395 | # define BB_PUTCHAR(c) bb_putchar(c) |
Tomas Heinrich | b8909c5 | 2010-05-16 20:46:53 +0200 | [diff] [blame] | 396 | /* Should never be called: */ |
| 397 | int adjust_width_and_validate_wc(unsigned *width_adj, int wc); |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 398 | #endif |
| 399 | |
| 400 | |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 401 | /* Put 'command_ps[cursor]', cursor++. |
| 402 | * Advance cursor on screen. If we reached right margin, scroll text up |
| 403 | * and remove terminal margin effect by printing 'next_char' */ |
Denis Vlasenko | 2c84495 | 2008-04-25 18:44:35 +0000 | [diff] [blame] | 404 | #define HACK_FOR_WRONG_WIDTH 1 |
Denys Vlasenko | 94043e8 | 2010-05-11 14:49:13 +0200 | [diff] [blame] | 405 | static void put_cur_glyph_and_inc_cursor(void) |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 406 | { |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 407 | CHAR_T c = command_ps[cursor]; |
Tomas Heinrich | b8909c5 | 2010-05-16 20:46:53 +0200 | [diff] [blame] | 408 | unsigned width = 0; |
| 409 | int ofs_to_right; |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 410 | |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 411 | if (c == BB_NUL) { |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 412 | /* erase character after end of input string */ |
| 413 | c = ' '; |
Denys Vlasenko | 94043e8 | 2010-05-11 14:49:13 +0200 | [diff] [blame] | 414 | } else { |
| 415 | /* advance cursor only if we aren't at the end yet */ |
| 416 | cursor++; |
Tomas Heinrich | b8909c5 | 2010-05-16 20:46:53 +0200 | [diff] [blame] | 417 | if (unicode_status == UNICODE_ON) { |
| 418 | IF_UNICODE_WIDE_WCHARS(width = cmdedit_x;) |
| 419 | c = adjust_width_and_validate_wc(&cmdedit_x, c); |
| 420 | IF_UNICODE_WIDE_WCHARS(width = cmdedit_x - width;) |
| 421 | } else { |
| 422 | cmdedit_x++; |
| 423 | } |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 424 | } |
Denys Vlasenko | 94043e8 | 2010-05-11 14:49:13 +0200 | [diff] [blame] | 425 | |
Tomas Heinrich | b8909c5 | 2010-05-16 20:46:53 +0200 | [diff] [blame] | 426 | ofs_to_right = cmdedit_x - cmdedit_termw; |
| 427 | if (!ENABLE_UNICODE_WIDE_WCHARS || ofs_to_right <= 0) { |
| 428 | /* c fits on this line */ |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 429 | BB_PUTCHAR(c); |
Denis Vlasenko | 0a8a774 | 2006-12-21 22:27:10 +0000 | [diff] [blame] | 430 | } |
Tomas Heinrich | b8909c5 | 2010-05-16 20:46:53 +0200 | [diff] [blame] | 431 | |
| 432 | if (ofs_to_right >= 0) { |
| 433 | /* we go to the next line */ |
Denis Vlasenko | 2c84495 | 2008-04-25 18:44:35 +0000 | [diff] [blame] | 434 | #if HACK_FOR_WRONG_WIDTH |
| 435 | /* This works better if our idea of term width is wrong |
| 436 | * and it is actually wider (often happens on serial lines). |
| 437 | * Printing CR,LF *forces* cursor to next line. |
| 438 | * OTOH if terminal width is correct AND terminal does NOT |
| 439 | * have automargin (IOW: it is moving cursor to next line |
| 440 | * by itself (which is wrong for VT-10x terminals)), |
| 441 | * this will break things: there will be one extra empty line */ |
| 442 | puts("\r"); /* + implicit '\n' */ |
| 443 | #else |
Denys Vlasenko | 94043e8 | 2010-05-11 14:49:13 +0200 | [diff] [blame] | 444 | /* VT-10x terminals don't wrap cursor to next line when last char |
| 445 | * on the line is printed - cursor stays "over" this char. |
| 446 | * Need to print _next_ char too (first one to appear on next line) |
| 447 | * to make cursor move down to next line. |
| 448 | */ |
| 449 | /* Works ok only if cmdedit_termw is correct. */ |
| 450 | c = command_ps[cursor]; |
| 451 | if (c == BB_NUL) |
| 452 | c = ' '; |
| 453 | BB_PUTCHAR(c); |
Denis Vlasenko | 4daad90 | 2007-09-27 10:20:47 +0000 | [diff] [blame] | 454 | bb_putchar('\b'); |
Denis Vlasenko | 2c84495 | 2008-04-25 18:44:35 +0000 | [diff] [blame] | 455 | #endif |
Tomas Heinrich | b8909c5 | 2010-05-16 20:46:53 +0200 | [diff] [blame] | 456 | cmdedit_y++; |
| 457 | if (!ENABLE_UNICODE_WIDE_WCHARS || ofs_to_right == 0) { |
| 458 | width = 0; |
| 459 | } else { /* ofs_to_right > 0 */ |
| 460 | /* wide char c didn't fit on prev line */ |
| 461 | BB_PUTCHAR(c); |
| 462 | } |
| 463 | cmdedit_x = width; |
Mark Whitley | 4e33875 | 2001-01-26 20:42:23 +0000 | [diff] [blame] | 464 | } |
Erik Andersen | 13456d1 | 2000-03-16 08:09:57 +0000 | [diff] [blame] | 465 | } |
| 466 | |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 467 | /* Move to end of line (by printing all chars till the end) */ |
Denys Vlasenko | 94043e8 | 2010-05-11 14:49:13 +0200 | [diff] [blame] | 468 | static void put_till_end_and_adv_cursor(void) |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 469 | { |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 470 | while (cursor < command_len) |
Denys Vlasenko | 94043e8 | 2010-05-11 14:49:13 +0200 | [diff] [blame] | 471 | put_cur_glyph_and_inc_cursor(); |
Mark Whitley | 4e33875 | 2001-01-26 20:42:23 +0000 | [diff] [blame] | 472 | } |
| 473 | |
| 474 | /* Go to the next line */ |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 475 | static void goto_new_line(void) |
| 476 | { |
Denys Vlasenko | 94043e8 | 2010-05-11 14:49:13 +0200 | [diff] [blame] | 477 | put_till_end_and_adv_cursor(); |
Denys Vlasenko | f5018da | 2018-04-06 17:58:21 +0200 | [diff] [blame] | 478 | /* "cursor == 0" is only if prompt is "" and user input is empty */ |
| 479 | if (cursor == 0 || cmdedit_x != 0) |
Denis Vlasenko | 4daad90 | 2007-09-27 10:20:47 +0000 | [diff] [blame] | 480 | bb_putchar('\n'); |
Mark Whitley | 4e33875 | 2001-01-26 20:42:23 +0000 | [diff] [blame] | 481 | } |
| 482 | |
Rob Landley | 88621d7 | 2006-08-29 19:41:06 +0000 | [diff] [blame] | 483 | static void beep(void) |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 484 | { |
Denis Vlasenko | 4daad90 | 2007-09-27 10:20:47 +0000 | [diff] [blame] | 485 | bb_putchar('\007'); |
Erik Andersen | 13456d1 | 2000-03-16 08:09:57 +0000 | [diff] [blame] | 486 | } |
| 487 | |
Avi Halachmi | 0fd5dbb | 2017-10-12 16:38:35 +0200 | [diff] [blame] | 488 | /* Full or last/sole prompt line, reset edit cursor, calculate terminal cursor. |
| 489 | * cmdedit_y is always calculated for the last/sole prompt line. |
| 490 | */ |
| 491 | static void put_prompt_custom(bool is_full) |
Denys Vlasenko | 248c324 | 2010-05-17 00:45:44 +0200 | [diff] [blame] | 492 | { |
Ron Yorston | cad3fc7 | 2021-02-03 20:47:14 +0100 | [diff] [blame] | 493 | fputs_stdout((is_full ? cmdedit_prompt : prompt_last_line)); |
Denys Vlasenko | 248c324 | 2010-05-17 00:45:44 +0200 | [diff] [blame] | 494 | cursor = 0; |
Denys Vlasenko | bff71d3 | 2016-11-27 22:25:07 +0100 | [diff] [blame] | 495 | cmdedit_y = cmdedit_prmt_len / cmdedit_termw; /* new quasireal y */ |
| 496 | cmdedit_x = cmdedit_prmt_len % cmdedit_termw; |
Denys Vlasenko | 248c324 | 2010-05-17 00:45:44 +0200 | [diff] [blame] | 497 | } |
| 498 | |
Avi Halachmi | 0fd5dbb | 2017-10-12 16:38:35 +0200 | [diff] [blame] | 499 | #define put_prompt_last_line() put_prompt_custom(0) |
| 500 | #define put_prompt() put_prompt_custom(1) |
| 501 | |
Eric Andersen | aff114c | 2004-04-14 17:51:38 +0000 | [diff] [blame] | 502 | /* Move back one character */ |
Denis Vlasenko | 47bdb3a | 2007-01-21 19:18:59 +0000 | [diff] [blame] | 503 | /* (optimized for slow terminals) */ |
| 504 | static void input_backward(unsigned num) |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 505 | { |
| 506 | if (num > cursor) |
| 507 | num = cursor; |
Tomas Heinrich | b8909c5 | 2010-05-16 20:46:53 +0200 | [diff] [blame] | 508 | if (num == 0) |
Denis Vlasenko | 47bdb3a | 2007-01-21 19:18:59 +0000 | [diff] [blame] | 509 | return; |
| 510 | cursor -= num; |
Erik Andersen | 13456d1 | 2000-03-16 08:09:57 +0000 | [diff] [blame] | 511 | |
Tomas Heinrich | b8909c5 | 2010-05-16 20:46:53 +0200 | [diff] [blame] | 512 | if ((ENABLE_UNICODE_COMBINING_WCHARS || ENABLE_UNICODE_WIDE_WCHARS) |
| 513 | && unicode_status == UNICODE_ON |
| 514 | ) { |
| 515 | /* correct NUM to be equal to _screen_ width */ |
| 516 | int n = num; |
| 517 | num = 0; |
| 518 | while (--n >= 0) |
| 519 | adjust_width_and_validate_wc(&num, command_ps[cursor + n]); |
| 520 | if (num == 0) |
| 521 | return; |
| 522 | } |
| 523 | |
Denis Vlasenko | b267ed9 | 2008-05-25 21:52:03 +0000 | [diff] [blame] | 524 | if (cmdedit_x >= num) { |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 525 | cmdedit_x -= num; |
Denis Vlasenko | 47bdb3a | 2007-01-21 19:18:59 +0000 | [diff] [blame] | 526 | if (num <= 4) { |
Denis Vlasenko | 6f04391 | 2008-02-18 22:28:03 +0000 | [diff] [blame] | 527 | /* This is longer by 5 bytes on x86. |
Denis Vlasenko | b267ed9 | 2008-05-25 21:52:03 +0000 | [diff] [blame] | 528 | * Also gets miscompiled for ARM users |
| 529 | * (busybox.net/bugs/view.php?id=2274). |
Denis Vlasenko | 6f04391 | 2008-02-18 22:28:03 +0000 | [diff] [blame] | 530 | * printf(("\b\b\b\b" + 4) - num); |
| 531 | * return; |
| 532 | */ |
| 533 | do { |
| 534 | bb_putchar('\b'); |
| 535 | } while (--num); |
Denis Vlasenko | 47bdb3a | 2007-01-21 19:18:59 +0000 | [diff] [blame] | 536 | return; |
| 537 | } |
Marek Polacek | 7b18107 | 2010-10-28 21:34:56 +0200 | [diff] [blame] | 538 | printf(ESC"[%uD", num); |
Denis Vlasenko | 47bdb3a | 2007-01-21 19:18:59 +0000 | [diff] [blame] | 539 | return; |
Erik Andersen | 13456d1 | 2000-03-16 08:09:57 +0000 | [diff] [blame] | 540 | } |
Denis Vlasenko | 47bdb3a | 2007-01-21 19:18:59 +0000 | [diff] [blame] | 541 | |
| 542 | /* Need to go one or more lines up */ |
Denys Vlasenko | 248c324 | 2010-05-17 00:45:44 +0200 | [diff] [blame] | 543 | if (ENABLE_UNICODE_WIDE_WCHARS) { |
| 544 | /* With wide chars, it is hard to "backtrack" |
| 545 | * and reliably figure out where to put cursor. |
| 546 | * Example (<> is a wide char; # is an ordinary char, _ cursor): |
| 547 | * |prompt: <><> | |
| 548 | * |<><><><><><> | |
| 549 | * |_ | |
| 550 | * and user presses left arrow. num = 1, cmdedit_x = 0, |
| 551 | * We need to go up one line, and then - how do we know that |
| 552 | * we need to go *10* positions to the right? Because |
| 553 | * |prompt: <>#<>| |
| 554 | * |<><><>#<><><>| |
| 555 | * |_ | |
| 556 | * in this situation we need to go *11* positions to the right. |
| 557 | * |
| 558 | * A simpler thing to do is to redraw everything from the start |
| 559 | * up to new cursor position (which is already known): |
| 560 | */ |
| 561 | unsigned sv_cursor; |
Denys Vlasenko | 9963fe3 | 2010-05-17 04:05:53 +0200 | [diff] [blame] | 562 | /* go to 1st column; go up to first line */ |
Marek Polacek | 7b18107 | 2010-10-28 21:34:56 +0200 | [diff] [blame] | 563 | printf("\r" ESC"[%uA", cmdedit_y); |
Denys Vlasenko | 248c324 | 2010-05-17 00:45:44 +0200 | [diff] [blame] | 564 | cmdedit_y = 0; |
| 565 | sv_cursor = cursor; |
Avi Halachmi | 0fd5dbb | 2017-10-12 16:38:35 +0200 | [diff] [blame] | 566 | put_prompt_last_line(); /* sets cursor to 0 */ |
Denys Vlasenko | 248c324 | 2010-05-17 00:45:44 +0200 | [diff] [blame] | 567 | while (cursor < sv_cursor) |
| 568 | put_cur_glyph_and_inc_cursor(); |
| 569 | } else { |
Denys Vlasenko | 1118d9b | 2010-05-17 12:30:44 +0200 | [diff] [blame] | 570 | int lines_up; |
Denys Vlasenko | 1118d9b | 2010-05-17 12:30:44 +0200 | [diff] [blame] | 571 | /* num = chars to go back from the beginning of current line: */ |
Denys Vlasenko | 248c324 | 2010-05-17 00:45:44 +0200 | [diff] [blame] | 572 | num -= cmdedit_x; |
Denys Vlasenko | 1118d9b | 2010-05-17 12:30:44 +0200 | [diff] [blame] | 573 | /* num=1...w: one line up, w+1...2w: two, etc: */ |
Denys Vlasenko | bff71d3 | 2016-11-27 22:25:07 +0100 | [diff] [blame] | 574 | lines_up = 1 + (num - 1) / cmdedit_termw; |
| 575 | cmdedit_x = (cmdedit_termw * cmdedit_y - num) % cmdedit_termw; |
Denys Vlasenko | 1118d9b | 2010-05-17 12:30:44 +0200 | [diff] [blame] | 576 | cmdedit_y -= lines_up; |
| 577 | /* go to 1st column; go up */ |
Marek Polacek | 7b18107 | 2010-10-28 21:34:56 +0200 | [diff] [blame] | 578 | printf("\r" ESC"[%uA", lines_up); |
Denys Vlasenko | 1118d9b | 2010-05-17 12:30:44 +0200 | [diff] [blame] | 579 | /* go to correct column. |
Denys Vlasenko | bbf1aa1 | 2010-05-17 12:33:13 +0200 | [diff] [blame] | 580 | * xterm, konsole, Linux VT interpret 0 as 1 below! wow. |
| 581 | * need to *make sure* we skip it if cmdedit_x == 0 */ |
Denys Vlasenko | 1118d9b | 2010-05-17 12:30:44 +0200 | [diff] [blame] | 582 | if (cmdedit_x) |
Marek Polacek | 7b18107 | 2010-10-28 21:34:56 +0200 | [diff] [blame] | 583 | printf(ESC"[%uC", cmdedit_x); |
Denis Vlasenko | b267ed9 | 2008-05-25 21:52:03 +0000 | [diff] [blame] | 584 | } |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 585 | } |
| 586 | |
Avi Halachmi | 0fd5dbb | 2017-10-12 16:38:35 +0200 | [diff] [blame] | 587 | /* See redraw and draw_full below */ |
| 588 | static void draw_custom(int y, int back_cursor, bool is_full) |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 589 | { |
Denys Vlasenko | 9963fe3 | 2010-05-17 04:05:53 +0200 | [diff] [blame] | 590 | if (y > 0) /* up y lines */ |
Marek Polacek | 7b18107 | 2010-10-28 21:34:56 +0200 | [diff] [blame] | 591 | printf(ESC"[%uA", y); |
Denis Vlasenko | 4daad90 | 2007-09-27 10:20:47 +0000 | [diff] [blame] | 592 | bb_putchar('\r'); |
Avi Halachmi | 0fd5dbb | 2017-10-12 16:38:35 +0200 | [diff] [blame] | 593 | put_prompt_custom(is_full); |
Denys Vlasenko | 94043e8 | 2010-05-11 14:49:13 +0200 | [diff] [blame] | 594 | put_till_end_and_adv_cursor(); |
| 595 | printf(SEQ_CLEAR_TILL_END_OF_SCREEN); |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 596 | input_backward(back_cursor); |
| 597 | } |
| 598 | |
Avi Halachmi | 0fd5dbb | 2017-10-12 16:38:35 +0200 | [diff] [blame] | 599 | /* Move y lines up, draw last/sole prompt line, editor line[s], and clear tail. |
| 600 | * goal: redraw the prompt+input+cursor in-place, overwriting the previous */ |
| 601 | #define redraw(y, back_cursor) draw_custom((y), (back_cursor), 0) |
| 602 | |
| 603 | /* Like above, but without moving up, and while using all the prompt lines. |
| 604 | * goal: draw a full prompt+input+cursor unrelated to a previous position. |
| 605 | * note: cmdedit_y always ends up relating to the last/sole prompt line */ |
| 606 | #define draw_full(back_cursor) draw_custom(0, (back_cursor), 1) |
| 607 | |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 608 | /* Delete the char in front of the cursor, optionally saving it |
| 609 | * for later putback */ |
Denis Vlasenko | 85c2471 | 2008-03-17 09:04:04 +0000 | [diff] [blame] | 610 | #if !ENABLE_FEATURE_EDITING_VI |
| 611 | static void input_delete(void) |
| 612 | #define input_delete(save) input_delete() |
| 613 | #else |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 614 | static void input_delete(int save) |
Denis Vlasenko | 85c2471 | 2008-03-17 09:04:04 +0000 | [diff] [blame] | 615 | #endif |
Erik Andersen | f0657d3 | 2000-04-12 17:49:52 +0000 | [diff] [blame] | 616 | { |
Mark Whitley | 4e33875 | 2001-01-26 20:42:23 +0000 | [diff] [blame] | 617 | int j = cursor; |
Erik Andersen | a268573 | 2000-04-09 18:27:46 +0000 | [diff] [blame] | 618 | |
Denis Vlasenko | 77ad97f | 2008-05-13 02:27:31 +0000 | [diff] [blame] | 619 | if (j == (int)command_len) |
Erik Andersen | f0657d3 | 2000-04-12 17:49:52 +0000 | [diff] [blame] | 620 | return; |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 621 | |
Denis Vlasenko | 38f6319 | 2007-01-22 09:03:07 +0000 | [diff] [blame] | 622 | #if ENABLE_FEATURE_EDITING_VI |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 623 | if (save) { |
| 624 | if (newdelflag) { |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 625 | delptr = delbuf; |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 626 | newdelflag = 0; |
| 627 | } |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 628 | if ((delptr - delbuf) < DELBUFSIZ) |
| 629 | *delptr++ = command_ps[j]; |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 630 | } |
| 631 | #endif |
| 632 | |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 633 | memmove(command_ps + j, command_ps + j + 1, |
Denys Vlasenko | 9531f7d | 2009-07-16 14:33:16 +0200 | [diff] [blame] | 634 | /* (command_len + 1 [because of NUL]) - (j + 1) |
| 635 | * simplified into (command_len - j) */ |
| 636 | (command_len - j) * sizeof(command_ps[0])); |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 637 | command_len--; |
Denys Vlasenko | 94043e8 | 2010-05-11 14:49:13 +0200 | [diff] [blame] | 638 | put_till_end_and_adv_cursor(); |
| 639 | /* Last char is still visible, erase it (and more) */ |
| 640 | printf(SEQ_CLEAR_TILL_END_OF_SCREEN); |
Eric Andersen | c470f44 | 2003-07-28 09:56:35 +0000 | [diff] [blame] | 641 | input_backward(cursor - j); /* back to old pos cursor */ |
Erik Andersen | f0657d3 | 2000-04-12 17:49:52 +0000 | [diff] [blame] | 642 | } |
| 643 | |
Denis Vlasenko | 38f6319 | 2007-01-22 09:03:07 +0000 | [diff] [blame] | 644 | #if ENABLE_FEATURE_EDITING_VI |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 645 | static void put(void) |
| 646 | { |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 647 | int ocursor; |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 648 | int j = delptr - delbuf; |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 649 | |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 650 | if (j == 0) |
| 651 | return; |
| 652 | ocursor = cursor; |
| 653 | /* open hole and then fill it */ |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 654 | memmove(command_ps + cursor + j, command_ps + cursor, |
| 655 | (command_len - cursor + 1) * sizeof(command_ps[0])); |
| 656 | memcpy(command_ps + cursor, delbuf, j * sizeof(command_ps[0])); |
Denis Vlasenko | 253ce00 | 2007-01-22 08:34:44 +0000 | [diff] [blame] | 657 | command_len += j; |
Denys Vlasenko | 94043e8 | 2010-05-11 14:49:13 +0200 | [diff] [blame] | 658 | put_till_end_and_adv_cursor(); |
Denis Vlasenko | 0a8a774 | 2006-12-21 22:27:10 +0000 | [diff] [blame] | 659 | input_backward(cursor - ocursor - j + 1); /* at end of new text */ |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 660 | } |
| 661 | #endif |
| 662 | |
Mark Whitley | 4e33875 | 2001-01-26 20:42:23 +0000 | [diff] [blame] | 663 | /* Delete the char in back of the cursor */ |
| 664 | static void input_backspace(void) |
| 665 | { |
| 666 | if (cursor > 0) { |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 667 | input_backward(1); |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 668 | input_delete(0); |
Mark Whitley | 4e33875 | 2001-01-26 20:42:23 +0000 | [diff] [blame] | 669 | } |
| 670 | } |
| 671 | |
Eric Andersen | aff114c | 2004-04-14 17:51:38 +0000 | [diff] [blame] | 672 | /* Move forward one character */ |
Mark Whitley | 4e33875 | 2001-01-26 20:42:23 +0000 | [diff] [blame] | 673 | static void input_forward(void) |
Erik Andersen | f0657d3 | 2000-04-12 17:49:52 +0000 | [diff] [blame] | 674 | { |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 675 | if (cursor < command_len) |
Denys Vlasenko | 94043e8 | 2010-05-11 14:49:13 +0200 | [diff] [blame] | 676 | put_cur_glyph_and_inc_cursor(); |
Erik Andersen | f0657d3 | 2000-04-12 17:49:52 +0000 | [diff] [blame] | 677 | } |
| 678 | |
Denis Vlasenko | 38f6319 | 2007-01-22 09:03:07 +0000 | [diff] [blame] | 679 | #if ENABLE_FEATURE_TAB_COMPLETION |
Mark Whitley | 4e33875 | 2001-01-26 20:42:23 +0000 | [diff] [blame] | 680 | |
Mike Shal | f376303 | 2010-11-22 03:49:18 +0100 | [diff] [blame] | 681 | //FIXME: |
| 682 | //needs to be more clever: currently it thinks that "foo\ b<TAB> |
| 683 | //matches the file named "foo bar", which is untrue. |
| 684 | //Also, perhaps "foo b<TAB> needs to complete to "foo bar" <cursor>, |
| 685 | //not "foo bar <cursor>... |
| 686 | |
Denis Vlasenko | 5592fac | 2007-01-21 19:19:46 +0000 | [diff] [blame] | 687 | static void free_tab_completion_data(void) |
| 688 | { |
| 689 | if (matches) { |
| 690 | while (num_matches) |
| 691 | free(matches[--num_matches]); |
| 692 | free(matches); |
| 693 | matches = NULL; |
| 694 | } |
| 695 | } |
"Vladimir N. Oleynik" | fdb871c | 2006-01-25 11:53:47 +0000 | [diff] [blame] | 696 | |
Denis Vlasenko | d56b47f | 2006-12-21 22:24:46 +0000 | [diff] [blame] | 697 | static void add_match(char *matched) |
"Vladimir N. Oleynik" | fdb871c | 2006-01-25 11:53:47 +0000 | [diff] [blame] | 698 | { |
Denys Vlasenko | c3797d4 | 2017-11-07 18:09:29 +0100 | [diff] [blame] | 699 | unsigned char *p = (unsigned char*)matched; |
| 700 | while (*p) { |
| 701 | /* ESC attack fix: drop any string with control chars */ |
| 702 | if (*p < ' ' |
| 703 | || (!ENABLE_UNICODE_SUPPORT && *p >= 0x7f) |
| 704 | || (ENABLE_UNICODE_SUPPORT && *p == 0x7f) |
| 705 | ) { |
| 706 | free(matched); |
| 707 | return; |
| 708 | } |
| 709 | p++; |
| 710 | } |
Denis Vlasenko | deeed59 | 2008-07-08 05:14:36 +0000 | [diff] [blame] | 711 | matches = xrealloc_vector(matches, 4, num_matches); |
| 712 | matches[num_matches] = matched; |
"Vladimir N. Oleynik" | fdb871c | 2006-01-25 11:53:47 +0000 | [diff] [blame] | 713 | num_matches++; |
| 714 | } |
| 715 | |
Mike Shal | f376303 | 2010-11-22 03:49:18 +0100 | [diff] [blame] | 716 | # if ENABLE_FEATURE_USERNAME_COMPLETION |
Denys Vlasenko | b068bd7 | 2010-09-02 12:01:11 +0200 | [diff] [blame] | 717 | /* Replace "~user/..." with "/homedir/...". |
| 718 | * The parameter is malloced, free it or return it |
| 719 | * unchanged if no user is matched. |
| 720 | */ |
| 721 | static char *username_path_completion(char *ud) |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 722 | { |
| 723 | struct passwd *entry; |
Denys Vlasenko | b068bd7 | 2010-09-02 12:01:11 +0200 | [diff] [blame] | 724 | char *tilde_name = ud; |
Denys Vlasenko | f4fcd74 | 2021-10-11 23:08:31 +0200 | [diff] [blame] | 725 | const char *home = NULL; |
Denys Vlasenko | b068bd7 | 2010-09-02 12:01:11 +0200 | [diff] [blame] | 726 | |
| 727 | ud++; /* skip ~ */ |
| 728 | if (*ud == '/') { /* "~/..." */ |
Denys Vlasenko | f4fcd74 | 2021-10-11 23:08:31 +0200 | [diff] [blame] | 729 | home = get_homedir_or_NULL(); |
Denys Vlasenko | b068bd7 | 2010-09-02 12:01:11 +0200 | [diff] [blame] | 730 | } else { |
| 731 | /* "~user/..." */ |
| 732 | ud = strchr(ud, '/'); |
| 733 | *ud = '\0'; /* "~user" */ |
| 734 | entry = getpwnam(tilde_name + 1); |
| 735 | *ud = '/'; /* restore "~user/..." */ |
| 736 | if (entry) |
| 737 | home = entry->pw_dir; |
| 738 | } |
| 739 | if (home) { |
| 740 | ud = concat_path_file(home, ud); |
| 741 | free(tilde_name); |
| 742 | tilde_name = ud; |
| 743 | } |
| 744 | return tilde_name; |
| 745 | } |
| 746 | |
Denys Vlasenko | 3c460b0 | 2010-09-03 12:56:36 +0200 | [diff] [blame] | 747 | /* ~use<tab> - find all users with this prefix. |
| 748 | * Return the length of the prefix used for matching. |
| 749 | */ |
| 750 | static NOINLINE unsigned complete_username(const char *ud) |
Denys Vlasenko | b068bd7 | 2010-09-02 12:01:11 +0200 | [diff] [blame] | 751 | { |
Denys Vlasenko | 23cfaab | 2015-02-07 21:21:02 +0100 | [diff] [blame] | 752 | struct passwd *pw; |
Denys Vlasenko | 3c460b0 | 2010-09-03 12:56:36 +0200 | [diff] [blame] | 753 | unsigned userlen; |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 754 | |
Denys Vlasenko | b068bd7 | 2010-09-02 12:01:11 +0200 | [diff] [blame] | 755 | ud++; /* skip ~ */ |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 756 | userlen = strlen(ud); |
| 757 | |
Denys Vlasenko | b068bd7 | 2010-09-02 12:01:11 +0200 | [diff] [blame] | 758 | setpwent(); |
Denys Vlasenko | 23cfaab | 2015-02-07 21:21:02 +0100 | [diff] [blame] | 759 | while ((pw = getpwent()) != NULL) { |
Denys Vlasenko | b068bd7 | 2010-09-02 12:01:11 +0200 | [diff] [blame] | 760 | /* Null usernames should result in all users as possible completions. */ |
Denys Vlasenko | 8dff01d | 2015-03-12 17:48:34 +0100 | [diff] [blame] | 761 | if (/* !ud[0] || */ is_prefixed_with(pw->pw_name, ud)) { |
Denys Vlasenko | 23cfaab | 2015-02-07 21:21:02 +0100 | [diff] [blame] | 762 | add_match(xasprintf("~%s/", pw->pw_name)); |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 763 | } |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 764 | } |
Denys Vlasenko | 23cfaab | 2015-02-07 21:21:02 +0100 | [diff] [blame] | 765 | endpwent(); /* don't keep password file open */ |
Denys Vlasenko | 3c460b0 | 2010-09-03 12:56:36 +0200 | [diff] [blame] | 766 | |
| 767 | return 1 + userlen; |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 768 | } |
Mike Shal | f376303 | 2010-11-22 03:49:18 +0100 | [diff] [blame] | 769 | # endif /* FEATURE_USERNAME_COMPLETION */ |
Mark Whitley | 4e33875 | 2001-01-26 20:42:23 +0000 | [diff] [blame] | 770 | |
| 771 | enum { |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 772 | FIND_EXE_ONLY = 0, |
| 773 | FIND_DIR_ONLY = 1, |
Mark Whitley | 4e33875 | 2001-01-26 20:42:23 +0000 | [diff] [blame] | 774 | FIND_FILE_ONLY = 2, |
| 775 | }; |
Erik Andersen | 1dbe340 | 2000-03-19 10:46:06 +0000 | [diff] [blame] | 776 | |
Denys Vlasenko | 1d180cd | 2020-12-16 10:59:20 +0100 | [diff] [blame] | 777 | static unsigned path_parse(char ***p) |
Mark Whitley | 4e33875 | 2001-01-26 20:42:23 +0000 | [diff] [blame] | 778 | { |
Denys Vlasenko | 1d180cd | 2020-12-16 10:59:20 +0100 | [diff] [blame] | 779 | unsigned npth; |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 780 | const char *pth; |
Denis Vlasenko | 253ce00 | 2007-01-22 08:34:44 +0000 | [diff] [blame] | 781 | char *tmp; |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 782 | char **res; |
Mark Whitley | 4e33875 | 2001-01-26 20:42:23 +0000 | [diff] [blame] | 783 | |
Denys Vlasenko | a97a795 | 2020-12-16 11:14:08 +0100 | [diff] [blame] | 784 | # if EDITING_HAS_path_lookup |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 785 | if (state->flags & WITH_PATH_LOOKUP) |
| 786 | pth = state->path_lookup; |
| 787 | else |
Denys Vlasenko | a97a795 | 2020-12-16 11:14:08 +0100 | [diff] [blame] | 788 | # endif |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 789 | pth = getenv("PATH"); |
Denys Vlasenko | b068bd7 | 2010-09-02 12:01:11 +0200 | [diff] [blame] | 790 | |
| 791 | /* PATH="" or PATH=":"? */ |
Denis Vlasenko | 0a8a774 | 2006-12-21 22:27:10 +0000 | [diff] [blame] | 792 | if (!pth || !pth[0] || LONE_CHAR(pth, ':')) |
| 793 | return 1; |
Mark Whitley | 4e33875 | 2001-01-26 20:42:23 +0000 | [diff] [blame] | 794 | |
Denis Vlasenko | 253ce00 | 2007-01-22 08:34:44 +0000 | [diff] [blame] | 795 | tmp = (char*)pth; |
Denys Vlasenko | 1d180cd | 2020-12-16 10:59:20 +0100 | [diff] [blame] | 796 | npth = 1; /* path component count */ |
Denis Vlasenko | 0a8a774 | 2006-12-21 22:27:10 +0000 | [diff] [blame] | 797 | while (1) { |
Mark Whitley | 4e33875 | 2001-01-26 20:42:23 +0000 | [diff] [blame] | 798 | tmp = strchr(tmp, ':'); |
Denis Vlasenko | 0a8a774 | 2006-12-21 22:27:10 +0000 | [diff] [blame] | 799 | if (!tmp) |
Mark Whitley | 4e33875 | 2001-01-26 20:42:23 +0000 | [diff] [blame] | 800 | break; |
Denys Vlasenko | b068bd7 | 2010-09-02 12:01:11 +0200 | [diff] [blame] | 801 | tmp++; |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 802 | npth++; |
Mark Whitley | 4e33875 | 2001-01-26 20:42:23 +0000 | [diff] [blame] | 803 | } |
| 804 | |
Denys Vlasenko | 1d180cd | 2020-12-16 10:59:20 +0100 | [diff] [blame] | 805 | *p = res = xzalloc((npth + 1) * sizeof(res[0])); |
Denis Vlasenko | 253ce00 | 2007-01-22 08:34:44 +0000 | [diff] [blame] | 806 | res[0] = tmp = xstrdup(pth); |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 807 | npth = 1; |
Denis Vlasenko | 0a8a774 | 2006-12-21 22:27:10 +0000 | [diff] [blame] | 808 | while (1) { |
Mark Whitley | 4e33875 | 2001-01-26 20:42:23 +0000 | [diff] [blame] | 809 | tmp = strchr(tmp, ':'); |
Denis Vlasenko | 0a8a774 | 2006-12-21 22:27:10 +0000 | [diff] [blame] | 810 | if (!tmp) |
Mark Whitley | 4e33875 | 2001-01-26 20:42:23 +0000 | [diff] [blame] | 811 | break; |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 812 | *tmp++ = '\0'; /* ':' -> '\0' */ |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 813 | res[npth++] = tmp; |
Mark Whitley | 4e33875 | 2001-01-26 20:42:23 +0000 | [diff] [blame] | 814 | } |
Denys Vlasenko | 1d180cd | 2020-12-16 10:59:20 +0100 | [diff] [blame] | 815 | /* special case: "match subdirectories of the current directory" */ |
| 816 | /*res[npth++] = NULL; - filled by xzalloc() */ |
Mark Whitley | 4e33875 | 2001-01-26 20:42:23 +0000 | [diff] [blame] | 817 | return npth; |
| 818 | } |
| 819 | |
Denys Vlasenko | 3c460b0 | 2010-09-03 12:56:36 +0200 | [diff] [blame] | 820 | /* Complete command, directory or file name. |
| 821 | * Return the length of the prefix used for matching. |
| 822 | */ |
| 823 | static NOINLINE unsigned complete_cmd_dir_file(const char *command, int type) |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 824 | { |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 825 | char *path1[1]; |
| 826 | char **paths = path1; |
Denys Vlasenko | 1d180cd | 2020-12-16 10:59:20 +0100 | [diff] [blame] | 827 | unsigned npaths; |
| 828 | unsigned i; |
| 829 | unsigned baselen; |
| 830 | const char *basecmd; |
Denys Vlasenko | b068bd7 | 2010-09-02 12:01:11 +0200 | [diff] [blame] | 831 | char *dirbuf = NULL; |
Mark Whitley | 4e33875 | 2001-01-26 20:42:23 +0000 | [diff] [blame] | 832 | |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 833 | npaths = 1; |
Denis Vlasenko | ab2aea4 | 2007-01-29 22:51:58 +0000 | [diff] [blame] | 834 | path1[0] = (char*)"."; |
Mark Whitley | 4e33875 | 2001-01-26 20:42:23 +0000 | [diff] [blame] | 835 | |
Denys Vlasenko | 1d180cd | 2020-12-16 10:59:20 +0100 | [diff] [blame] | 836 | basecmd = strrchr(command, '/'); |
| 837 | if (!basecmd) { |
Denys Vlasenko | b068bd7 | 2010-09-02 12:01:11 +0200 | [diff] [blame] | 838 | if (type == FIND_EXE_ONLY) |
| 839 | npaths = path_parse(&paths); |
Denys Vlasenko | 1d180cd | 2020-12-16 10:59:20 +0100 | [diff] [blame] | 840 | basecmd = command; |
Mark Whitley | 4e33875 | 2001-01-26 20:42:23 +0000 | [diff] [blame] | 841 | } else { |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 842 | /* point to 'l' in "..../last_component" */ |
Denys Vlasenko | 1d180cd | 2020-12-16 10:59:20 +0100 | [diff] [blame] | 843 | basecmd++; |
Denys Vlasenko | b068bd7 | 2010-09-02 12:01:11 +0200 | [diff] [blame] | 844 | /* dirbuf = ".../.../.../" */ |
Denys Vlasenko | 1d180cd | 2020-12-16 10:59:20 +0100 | [diff] [blame] | 845 | dirbuf = xstrndup(command, basecmd - command); |
Mike Shal | f376303 | 2010-11-22 03:49:18 +0100 | [diff] [blame] | 846 | # if ENABLE_FEATURE_USERNAME_COMPLETION |
Denys Vlasenko | b068bd7 | 2010-09-02 12:01:11 +0200 | [diff] [blame] | 847 | if (dirbuf[0] == '~') /* ~/... or ~user/... */ |
| 848 | dirbuf = username_path_completion(dirbuf); |
Mike Shal | f376303 | 2010-11-22 03:49:18 +0100 | [diff] [blame] | 849 | # endif |
Denys Vlasenko | 7063e86 | 2010-09-02 12:44:39 +0200 | [diff] [blame] | 850 | path1[0] = dirbuf; |
Mark Whitley | 4e33875 | 2001-01-26 20:42:23 +0000 | [diff] [blame] | 851 | } |
Denys Vlasenko | 1d180cd | 2020-12-16 10:59:20 +0100 | [diff] [blame] | 852 | baselen = strlen(basecmd); |
Erik Andersen | c7c634b | 2000-03-19 05:28:55 +0000 | [diff] [blame] | 853 | |
Denys Vlasenko | 1336052 | 2016-10-24 01:25:05 +0200 | [diff] [blame] | 854 | if (type == FIND_EXE_ONLY && !dirbuf) { |
Ron Yorston | 9e2a566 | 2020-01-21 16:01:58 +0000 | [diff] [blame] | 855 | # if ENABLE_FEATURE_SH_STANDALONE && NUM_APPLETS != 1 |
Ron Yorston | 3778898 | 2018-11-17 17:48:14 +0000 | [diff] [blame] | 856 | const char *p = applet_names; |
Ron Yorston | 2b91958 | 2016-04-08 11:57:20 +0100 | [diff] [blame] | 857 | while (*p) { |
Denys Vlasenko | 1d180cd | 2020-12-16 10:59:20 +0100 | [diff] [blame] | 858 | if (strncmp(basecmd, p, baselen) == 0) |
Ron Yorston | f23264b | 2015-05-29 11:31:40 +0100 | [diff] [blame] | 859 | add_match(xstrdup(p)); |
Ron Yorston | 3778898 | 2018-11-17 17:48:14 +0000 | [diff] [blame] | 860 | while (*p++ != '\0') |
Ron Yorston | 2b91958 | 2016-04-08 11:57:20 +0100 | [diff] [blame] | 861 | continue; |
Ron Yorston | f23264b | 2015-05-29 11:31:40 +0100 | [diff] [blame] | 862 | } |
Denys Vlasenko | f128bdb | 2017-07-29 00:59:24 +0200 | [diff] [blame] | 863 | # endif |
Ron Yorston | 9e2a566 | 2020-01-21 16:01:58 +0000 | [diff] [blame] | 864 | # if EDITING_HAS_get_exe_name |
| 865 | if (state->get_exe_name) { |
| 866 | i = 0; |
| 867 | for (;;) { |
| 868 | const char *b = state->get_exe_name(i++); |
| 869 | if (!b) |
| 870 | break; |
Denys Vlasenko | 1d180cd | 2020-12-16 10:59:20 +0100 | [diff] [blame] | 871 | if (strncmp(basecmd, b, baselen) == 0) |
Ron Yorston | 9e2a566 | 2020-01-21 16:01:58 +0000 | [diff] [blame] | 872 | add_match(xstrdup(b)); |
| 873 | } |
| 874 | } |
| 875 | # endif |
| 876 | } |
Ron Yorston | f23264b | 2015-05-29 11:31:40 +0100 | [diff] [blame] | 877 | |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 878 | for (i = 0; i < npaths; i++) { |
Denys Vlasenko | b068bd7 | 2010-09-02 12:01:11 +0200 | [diff] [blame] | 879 | DIR *dir; |
| 880 | struct dirent *next; |
| 881 | struct stat st; |
| 882 | char *found; |
Ron Yorston | 760b627 | 2021-02-18 09:50:29 +0000 | [diff] [blame] | 883 | const char *lpath; |
Denys Vlasenko | b068bd7 | 2010-09-02 12:01:11 +0200 | [diff] [blame] | 884 | |
Denys Vlasenko | 1d180cd | 2020-12-16 10:59:20 +0100 | [diff] [blame] | 885 | if (paths[i] == NULL) { /* path_parse()'s last component? */ |
| 886 | /* in PATH completion, current dir's subdir names |
| 887 | * can be completions (but only subdirs, not files). |
| 888 | */ |
Ron Yorston | 8baa643 | 2020-12-11 12:34:21 +0000 | [diff] [blame] | 889 | type = FIND_DIR_ONLY; |
| 890 | paths[i] = (char *)"."; |
| 891 | } |
| 892 | |
Ron Yorston | 760b627 | 2021-02-18 09:50:29 +0000 | [diff] [blame] | 893 | lpath = *paths[i] ? paths[i] : "."; |
| 894 | dir = opendir(lpath); |
Denis Vlasenko | b520271 | 2008-04-24 04:42:52 +0000 | [diff] [blame] | 895 | if (!dir) |
| 896 | continue; /* don't print an error */ |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 897 | |
| 898 | while ((next = readdir(dir)) != NULL) { |
Denys Vlasenko | 3926363 | 2010-09-03 14:11:08 +0200 | [diff] [blame] | 899 | unsigned len; |
Denys Vlasenko | b068bd7 | 2010-09-02 12:01:11 +0200 | [diff] [blame] | 900 | const char *name_found = next->d_name; |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 901 | |
Denys Vlasenko | b068bd7 | 2010-09-02 12:01:11 +0200 | [diff] [blame] | 902 | /* .../<tab>: bash 3.2.0 shows dotfiles, but not . and .. */ |
Denys Vlasenko | 1d180cd | 2020-12-16 10:59:20 +0100 | [diff] [blame] | 903 | if (!basecmd[0] && DOT_OR_DOTDOT(name_found)) |
Mark Whitley | 4e33875 | 2001-01-26 20:42:23 +0000 | [diff] [blame] | 904 | continue; |
Denys Vlasenko | b068bd7 | 2010-09-02 12:01:11 +0200 | [diff] [blame] | 905 | /* match? */ |
Denys Vlasenko | 1d180cd | 2020-12-16 10:59:20 +0100 | [diff] [blame] | 906 | if (strncmp(basecmd, name_found, baselen) != 0) |
Denys Vlasenko | b068bd7 | 2010-09-02 12:01:11 +0200 | [diff] [blame] | 907 | continue; /* no */ |
| 908 | |
Ron Yorston | 760b627 | 2021-02-18 09:50:29 +0000 | [diff] [blame] | 909 | found = concat_path_file(lpath, name_found); |
Denis Vlasenko | b520271 | 2008-04-24 04:42:52 +0000 | [diff] [blame] | 910 | /* NB: stat() first so that we see is it a directory; |
| 911 | * but if that fails, use lstat() so that |
| 912 | * we still match dangling links */ |
| 913 | if (stat(found, &st) && lstat(found, &st)) |
Denys Vlasenko | b068bd7 | 2010-09-02 12:01:11 +0200 | [diff] [blame] | 914 | goto cont; /* hmm, remove in progress? */ |
Denis Vlasenko | d56b47f | 2006-12-21 22:24:46 +0000 | [diff] [blame] | 915 | |
Denys Vlasenko | 3926363 | 2010-09-03 14:11:08 +0200 | [diff] [blame] | 916 | /* Save only name */ |
| 917 | len = strlen(name_found); |
| 918 | found = xrealloc(found, len + 2); /* +2: for slash and NUL */ |
| 919 | strcpy(found, name_found); |
Denis Vlasenko | d56b47f | 2006-12-21 22:24:46 +0000 | [diff] [blame] | 920 | |
Mark Whitley | 4e33875 | 2001-01-26 20:42:23 +0000 | [diff] [blame] | 921 | if (S_ISDIR(st.st_mode)) { |
Ron Yorston | 8506dd6 | 2020-12-10 14:44:57 +0000 | [diff] [blame] | 922 | /* skip directories if searching PATH */ |
| 923 | if (type == FIND_EXE_ONLY && !dirbuf) |
| 924 | goto cont; |
Denys Vlasenko | 3926363 | 2010-09-03 14:11:08 +0200 | [diff] [blame] | 925 | /* name is a directory, add slash */ |
| 926 | found[len] = '/'; |
| 927 | found[len + 1] = '\0'; |
Mark Whitley | 4e33875 | 2001-01-26 20:42:23 +0000 | [diff] [blame] | 928 | } else { |
Denys Vlasenko | b068bd7 | 2010-09-02 12:01:11 +0200 | [diff] [blame] | 929 | /* skip files if looking for dirs only (example: cd) */ |
Eric Andersen | c470f44 | 2003-07-28 09:56:35 +0000 | [diff] [blame] | 930 | if (type == FIND_DIR_ONLY) |
Eric Andersen | e5dfced | 2001-04-09 22:48:12 +0000 | [diff] [blame] | 931 | goto cont; |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 932 | } |
Denys Vlasenko | b068bd7 | 2010-09-02 12:01:11 +0200 | [diff] [blame] | 933 | /* add it to the list */ |
Denis Vlasenko | d56b47f | 2006-12-21 22:24:46 +0000 | [diff] [blame] | 934 | add_match(found); |
"Vladimir N. Oleynik" | fdb871c | 2006-01-25 11:53:47 +0000 | [diff] [blame] | 935 | continue; |
Denis Vlasenko | 0a8a774 | 2006-12-21 22:27:10 +0000 | [diff] [blame] | 936 | cont: |
Eric Andersen | e5dfced | 2001-04-09 22:48:12 +0000 | [diff] [blame] | 937 | free(found); |
Erik Andersen | 1dbe340 | 2000-03-19 10:46:06 +0000 | [diff] [blame] | 938 | } |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 939 | closedir(dir); |
Denys Vlasenko | b068bd7 | 2010-09-02 12:01:11 +0200 | [diff] [blame] | 940 | } /* for every path */ |
| 941 | |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 942 | if (paths != path1) { |
Denis Vlasenko | b520271 | 2008-04-24 04:42:52 +0000 | [diff] [blame] | 943 | free(paths[0]); /* allocated memory is only in first member */ |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 944 | free(paths); |
| 945 | } |
Denys Vlasenko | 3926363 | 2010-09-03 14:11:08 +0200 | [diff] [blame] | 946 | free(dirbuf); |
Denys Vlasenko | 3c460b0 | 2010-09-03 12:56:36 +0200 | [diff] [blame] | 947 | |
Denys Vlasenko | 1d180cd | 2020-12-16 10:59:20 +0100 | [diff] [blame] | 948 | return baselen; |
Erik Andersen | 6273f65 | 2000-03-17 01:12:41 +0000 | [diff] [blame] | 949 | } |
Erik Andersen | f0657d3 | 2000-04-12 17:49:52 +0000 | [diff] [blame] | 950 | |
Denys Vlasenko | 57ea9b4 | 2010-09-03 12:51:36 +0200 | [diff] [blame] | 951 | /* build_match_prefix: |
Denys Vlasenko | 76939e7 | 2010-09-03 14:09:24 +0200 | [diff] [blame] | 952 | * On entry, match_buf contains everything up to cursor at the moment <tab> |
Denys Vlasenko | b068bd7 | 2010-09-02 12:01:11 +0200 | [diff] [blame] | 953 | * was pressed. This function looks at it, figures out what part of it |
| 954 | * constitutes the command/file/directory prefix to use for completion, |
Denys Vlasenko | 76939e7 | 2010-09-03 14:09:24 +0200 | [diff] [blame] | 955 | * and rewrites match_buf to contain only that part. |
Denys Vlasenko | b068bd7 | 2010-09-02 12:01:11 +0200 | [diff] [blame] | 956 | */ |
Denys Vlasenko | 76939e7 | 2010-09-03 14:09:24 +0200 | [diff] [blame] | 957 | #define dbg_bmp 0 |
Denys Vlasenko | 57ea9b4 | 2010-09-03 12:51:36 +0200 | [diff] [blame] | 958 | /* Helpers: */ |
| 959 | /* QUOT is used on elements of int_buf[], which are bytes, |
| 960 | * not Unicode chars. Therefore it works correctly even in Unicode mode. |
| 961 | */ |
| 962 | #define QUOT (UCHAR_MAX+1) |
Denys Vlasenko | 9b56bf5 | 2010-09-03 13:02:47 +0200 | [diff] [blame] | 963 | static void remove_chunk(int16_t *int_buf, int beg, int end) |
Denys Vlasenko | 57ea9b4 | 2010-09-03 12:51:36 +0200 | [diff] [blame] | 964 | { |
| 965 | /* beg must be <= end */ |
Denys Vlasenko | 2679e3c | 2010-09-03 12:53:15 +0200 | [diff] [blame] | 966 | if (beg == end) |
| 967 | return; |
Denys Vlasenko | 81254ed | 2010-09-03 12:59:15 +0200 | [diff] [blame] | 968 | |
| 969 | while ((int_buf[beg] = int_buf[end]) != 0) |
| 970 | beg++, end++; |
| 971 | |
Denys Vlasenko | 2679e3c | 2010-09-03 12:53:15 +0200 | [diff] [blame] | 972 | if (dbg_bmp) { |
| 973 | int i; |
| 974 | for (i = 0; int_buf[i]; i++) |
| 975 | bb_putchar((unsigned char)int_buf[i]); |
| 976 | bb_putchar('\n'); |
| 977 | } |
Denys Vlasenko | 57ea9b4 | 2010-09-03 12:51:36 +0200 | [diff] [blame] | 978 | } |
Denys Vlasenko | 76939e7 | 2010-09-03 14:09:24 +0200 | [diff] [blame] | 979 | /* Caller ensures that match_buf points to a malloced buffer |
| 980 | * big enough to hold strlen(match_buf)*2 + 2 |
| 981 | */ |
| 982 | static NOINLINE int build_match_prefix(char *match_buf) |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 983 | { |
| 984 | int i, j; |
| 985 | int command_mode; |
Denys Vlasenko | 76939e7 | 2010-09-03 14:09:24 +0200 | [diff] [blame] | 986 | int16_t *int_buf = (int16_t*)match_buf; |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 987 | |
Denys Vlasenko | 76939e7 | 2010-09-03 14:09:24 +0200 | [diff] [blame] | 988 | if (dbg_bmp) printf("\n%s\n", match_buf); |
Denys Vlasenko | 2679e3c | 2010-09-03 12:53:15 +0200 | [diff] [blame] | 989 | |
Denys Vlasenko | 76939e7 | 2010-09-03 14:09:24 +0200 | [diff] [blame] | 990 | /* Copy in reverse order, since they overlap */ |
| 991 | i = strlen(match_buf); |
| 992 | do { |
| 993 | int_buf[i] = (unsigned char)match_buf[i]; |
| 994 | i--; |
| 995 | } while (i >= 0); |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 996 | |
Denys Vlasenko | 57ea9b4 | 2010-09-03 12:51:36 +0200 | [diff] [blame] | 997 | /* Mark every \c as "quoted c" */ |
Denys Vlasenko | 76939e7 | 2010-09-03 14:09:24 +0200 | [diff] [blame] | 998 | for (i = 0; int_buf[i]; i++) { |
| 999 | if (int_buf[i] == '\\') { |
| 1000 | remove_chunk(int_buf, i, i + 1); |
| 1001 | int_buf[i] |= QUOT; |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 1002 | } |
Tomas Heinrich | b8909c5 | 2010-05-16 20:46:53 +0200 | [diff] [blame] | 1003 | } |
Denys Vlasenko | 81254ed | 2010-09-03 12:59:15 +0200 | [diff] [blame] | 1004 | /* Quote-mark "chars" and 'chars', drop delimiters */ |
Denys Vlasenko | 2679e3c | 2010-09-03 12:53:15 +0200 | [diff] [blame] | 1005 | { |
| 1006 | int in_quote = 0; |
Denys Vlasenko | 81254ed | 2010-09-03 12:59:15 +0200 | [diff] [blame] | 1007 | i = 0; |
| 1008 | while (int_buf[i]) { |
Denys Vlasenko | 2679e3c | 2010-09-03 12:53:15 +0200 | [diff] [blame] | 1009 | int cur = int_buf[i]; |
Denys Vlasenko | 81254ed | 2010-09-03 12:59:15 +0200 | [diff] [blame] | 1010 | if (!cur) |
| 1011 | break; |
Denys Vlasenko | 2679e3c | 2010-09-03 12:53:15 +0200 | [diff] [blame] | 1012 | if (cur == '\'' || cur == '"') { |
Denys Vlasenko | 81254ed | 2010-09-03 12:59:15 +0200 | [diff] [blame] | 1013 | if (!in_quote || (cur == in_quote)) { |
| 1014 | in_quote ^= cur; |
Denys Vlasenko | 9b56bf5 | 2010-09-03 13:02:47 +0200 | [diff] [blame] | 1015 | remove_chunk(int_buf, i, i + 1); |
Denys Vlasenko | 81254ed | 2010-09-03 12:59:15 +0200 | [diff] [blame] | 1016 | continue; |
| 1017 | } |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 1018 | } |
Denys Vlasenko | 81254ed | 2010-09-03 12:59:15 +0200 | [diff] [blame] | 1019 | if (in_quote) |
| 1020 | int_buf[i] = cur | QUOT; |
| 1021 | i++; |
Denys Vlasenko | 2679e3c | 2010-09-03 12:53:15 +0200 | [diff] [blame] | 1022 | } |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 1023 | } |
| 1024 | |
Denys Vlasenko | 57ea9b4 | 2010-09-03 12:51:36 +0200 | [diff] [blame] | 1025 | /* Remove everything up to command delimiters: |
| 1026 | * ';' ';;' '&' '|' '&&' '||', |
| 1027 | * but careful with '>&' '<&' '>|' |
| 1028 | */ |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 1029 | for (i = 0; int_buf[i]; i++) { |
Denys Vlasenko | 2679e3c | 2010-09-03 12:53:15 +0200 | [diff] [blame] | 1030 | int cur = int_buf[i]; |
| 1031 | if (cur == ';' || cur == '&' || cur == '|') { |
| 1032 | int prev = i ? int_buf[i - 1] : 0; |
| 1033 | if (cur == '&' && (prev == '>' || prev == '<')) { |
| 1034 | continue; |
| 1035 | } else if (cur == '|' && prev == '>') { |
| 1036 | continue; |
| 1037 | } |
Denys Vlasenko | 9b56bf5 | 2010-09-03 13:02:47 +0200 | [diff] [blame] | 1038 | remove_chunk(int_buf, 0, i + 1 + (cur == int_buf[i + 1])); |
Denys Vlasenko | 2679e3c | 2010-09-03 12:53:15 +0200 | [diff] [blame] | 1039 | i = -1; /* back to square 1 */ |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 1040 | } |
| 1041 | } |
Denys Vlasenko | 57ea9b4 | 2010-09-03 12:51:36 +0200 | [diff] [blame] | 1042 | /* Remove all `cmd` */ |
Denys Vlasenko | 53fd1bf | 2009-07-16 02:19:39 +0200 | [diff] [blame] | 1043 | for (i = 0; int_buf[i]; i++) { |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 1044 | if (int_buf[i] == '`') { |
Denys Vlasenko | 57ea9b4 | 2010-09-03 12:51:36 +0200 | [diff] [blame] | 1045 | for (j = i + 1; int_buf[j]; j++) { |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 1046 | if (int_buf[j] == '`') { |
Denys Vlasenko | 81254ed | 2010-09-03 12:59:15 +0200 | [diff] [blame] | 1047 | /* `cmd` should count as a word: |
| 1048 | * `cmd` c<tab> should search for files c*, |
| 1049 | * not commands c*. Therefore we don't drop |
| 1050 | * `cmd` entirely, we replace it with single `. |
| 1051 | */ |
Denys Vlasenko | 9b56bf5 | 2010-09-03 13:02:47 +0200 | [diff] [blame] | 1052 | remove_chunk(int_buf, i, j); |
Denys Vlasenko | 2679e3c | 2010-09-03 12:53:15 +0200 | [diff] [blame] | 1053 | goto next; |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 1054 | } |
Denys Vlasenko | 57ea9b4 | 2010-09-03 12:51:36 +0200 | [diff] [blame] | 1055 | } |
Denys Vlasenko | 2679e3c | 2010-09-03 12:53:15 +0200 | [diff] [blame] | 1056 | /* No closing ` - command mode, remove all up to ` */ |
Denys Vlasenko | 9b56bf5 | 2010-09-03 13:02:47 +0200 | [diff] [blame] | 1057 | remove_chunk(int_buf, 0, i + 1); |
Denys Vlasenko | 2679e3c | 2010-09-03 12:53:15 +0200 | [diff] [blame] | 1058 | break; |
Denys Vlasenko | 81254ed | 2010-09-03 12:59:15 +0200 | [diff] [blame] | 1059 | next: ; |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 1060 | } |
Denys Vlasenko | 53fd1bf | 2009-07-16 02:19:39 +0200 | [diff] [blame] | 1061 | } |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 1062 | |
Denys Vlasenko | 81254ed | 2010-09-03 12:59:15 +0200 | [diff] [blame] | 1063 | /* Remove "cmd (" and "cmd {" |
| 1064 | * Example: "if { c<tab>" |
| 1065 | * In this example, c should be matched as command pfx. |
| 1066 | */ |
| 1067 | for (i = 0; int_buf[i]; i++) { |
| 1068 | if (int_buf[i] == '(' || int_buf[i] == '{') { |
Denys Vlasenko | 9b56bf5 | 2010-09-03 13:02:47 +0200 | [diff] [blame] | 1069 | remove_chunk(int_buf, 0, i + 1); |
Denys Vlasenko | ba0e103 | 2010-09-03 14:08:24 +0200 | [diff] [blame] | 1070 | i = -1; /* back to square 1 */ |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 1071 | } |
Denys Vlasenko | 53fd1bf | 2009-07-16 02:19:39 +0200 | [diff] [blame] | 1072 | } |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 1073 | |
Denys Vlasenko | 57ea9b4 | 2010-09-03 12:51:36 +0200 | [diff] [blame] | 1074 | /* Remove leading unquoted spaces */ |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 1075 | for (i = 0; int_buf[i]; i++) |
| 1076 | if (int_buf[i] != ' ') |
| 1077 | break; |
Denys Vlasenko | 9b56bf5 | 2010-09-03 13:02:47 +0200 | [diff] [blame] | 1078 | remove_chunk(int_buf, 0, i); |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 1079 | |
Denys Vlasenko | 57ea9b4 | 2010-09-03 12:51:36 +0200 | [diff] [blame] | 1080 | /* Determine completion mode */ |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 1081 | command_mode = FIND_EXE_ONLY; |
Denys Vlasenko | 53fd1bf | 2009-07-16 02:19:39 +0200 | [diff] [blame] | 1082 | for (i = 0; int_buf[i]; i++) { |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 1083 | if (int_buf[i] == ' ' || int_buf[i] == '<' || int_buf[i] == '>') { |
Denys Vlasenko | 57ea9b4 | 2010-09-03 12:51:36 +0200 | [diff] [blame] | 1084 | if (int_buf[i] == ' ' |
| 1085 | && command_mode == FIND_EXE_ONLY |
Denys Vlasenko | 81254ed | 2010-09-03 12:59:15 +0200 | [diff] [blame] | 1086 | && (char)int_buf[0] == 'c' |
| 1087 | && (char)int_buf[1] == 'd' |
| 1088 | && i == 2 /* -> int_buf[2] == ' ' */ |
Denis Vlasenko | 0a8a774 | 2006-12-21 22:27:10 +0000 | [diff] [blame] | 1089 | ) { |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 1090 | command_mode = FIND_DIR_ONLY; |
Denis Vlasenko | 0a8a774 | 2006-12-21 22:27:10 +0000 | [diff] [blame] | 1091 | } else { |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 1092 | command_mode = FIND_FILE_ONLY; |
| 1093 | break; |
| 1094 | } |
| 1095 | } |
Denys Vlasenko | 53fd1bf | 2009-07-16 02:19:39 +0200 | [diff] [blame] | 1096 | } |
Denys Vlasenko | 2679e3c | 2010-09-03 12:53:15 +0200 | [diff] [blame] | 1097 | if (dbg_bmp) printf("command_mode(0:exe/1:dir/2:file):%d\n", command_mode); |
Denys Vlasenko | 57ea9b4 | 2010-09-03 12:51:36 +0200 | [diff] [blame] | 1098 | |
| 1099 | /* Remove everything except last word */ |
Denys Vlasenko | b068bd7 | 2010-09-02 12:01:11 +0200 | [diff] [blame] | 1100 | for (i = 0; int_buf[i]; i++) /* quasi-strlen(int_buf) */ |
| 1101 | continue; |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 1102 | for (--i; i >= 0; i--) { |
Denys Vlasenko | 2679e3c | 2010-09-03 12:53:15 +0200 | [diff] [blame] | 1103 | int cur = int_buf[i]; |
Natanael Copa | 7323bca | 2021-04-09 17:02:00 +0200 | [diff] [blame] | 1104 | if (cur == ' ' || cur == '<' || cur == '>' || cur == '|' || cur == '&' || cur == '=') { |
Denys Vlasenko | 9b56bf5 | 2010-09-03 13:02:47 +0200 | [diff] [blame] | 1105 | remove_chunk(int_buf, 0, i + 1); |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 1106 | break; |
| 1107 | } |
| 1108 | } |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 1109 | |
Denys Vlasenko | 76939e7 | 2010-09-03 14:09:24 +0200 | [diff] [blame] | 1110 | /* Convert back to string of _chars_ */ |
Denys Vlasenko | 81254ed | 2010-09-03 12:59:15 +0200 | [diff] [blame] | 1111 | i = 0; |
Denys Vlasenko | 76939e7 | 2010-09-03 14:09:24 +0200 | [diff] [blame] | 1112 | while ((match_buf[i] = int_buf[i]) != '\0') |
Denys Vlasenko | 81254ed | 2010-09-03 12:59:15 +0200 | [diff] [blame] | 1113 | i++; |
Denys Vlasenko | 9b56bf5 | 2010-09-03 13:02:47 +0200 | [diff] [blame] | 1114 | |
Denys Vlasenko | 76939e7 | 2010-09-03 14:09:24 +0200 | [diff] [blame] | 1115 | if (dbg_bmp) printf("final match_buf:'%s'\n", match_buf); |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 1116 | |
| 1117 | return command_mode; |
Denys Vlasenko | 5c2e81b | 2009-07-16 14:14:34 +0200 | [diff] [blame] | 1118 | } |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 1119 | |
Glenn L McGrath | 4d00129 | 2003-01-06 01:11:50 +0000 | [diff] [blame] | 1120 | /* |
Denys Vlasenko | 57ea9b4 | 2010-09-03 12:51:36 +0200 | [diff] [blame] | 1121 | * Display by column (original idea from ls applet, |
| 1122 | * very optimized by me [Vladimir] :) |
Denis Vlasenko | 5592fac | 2007-01-21 19:19:46 +0000 | [diff] [blame] | 1123 | */ |
"Vladimir N. Oleynik" | fdb871c | 2006-01-25 11:53:47 +0000 | [diff] [blame] | 1124 | static void showfiles(void) |
Glenn L McGrath | 4d00129 | 2003-01-06 01:11:50 +0000 | [diff] [blame] | 1125 | { |
| 1126 | int ncols, row; |
| 1127 | int column_width = 0; |
"Vladimir N. Oleynik" | fdb871c | 2006-01-25 11:53:47 +0000 | [diff] [blame] | 1128 | int nfiles = num_matches; |
Glenn L McGrath | 4d00129 | 2003-01-06 01:11:50 +0000 | [diff] [blame] | 1129 | int nrows = nfiles; |
"Vladimir N. Oleynik" | fdb871c | 2006-01-25 11:53:47 +0000 | [diff] [blame] | 1130 | int l; |
Glenn L McGrath | 4d00129 | 2003-01-06 01:11:50 +0000 | [diff] [blame] | 1131 | |
Denys Vlasenko | 53fd1bf | 2009-07-16 02:19:39 +0200 | [diff] [blame] | 1132 | /* find the longest file name - use that as the column width */ |
Glenn L McGrath | 4d00129 | 2003-01-06 01:11:50 +0000 | [diff] [blame] | 1133 | for (row = 0; row < nrows; row++) { |
Tomas Heinrich | 11bcf4b | 2010-06-01 08:33:18 +0200 | [diff] [blame] | 1134 | l = unicode_strwidth(matches[row]); |
Glenn L McGrath | 4d00129 | 2003-01-06 01:11:50 +0000 | [diff] [blame] | 1135 | if (column_width < l) |
| 1136 | column_width = l; |
| 1137 | } |
| 1138 | column_width += 2; /* min space for columns */ |
| 1139 | ncols = cmdedit_termw / column_width; |
| 1140 | |
| 1141 | if (ncols > 1) { |
| 1142 | nrows /= ncols; |
Denis Vlasenko | 7f1dc21 | 2006-12-19 01:10:25 +0000 | [diff] [blame] | 1143 | if (nfiles % ncols) |
Glenn L McGrath | 4d00129 | 2003-01-06 01:11:50 +0000 | [diff] [blame] | 1144 | nrows++; /* round up fractionals */ |
Glenn L McGrath | 4d00129 | 2003-01-06 01:11:50 +0000 | [diff] [blame] | 1145 | } else { |
| 1146 | ncols = 1; |
| 1147 | } |
| 1148 | for (row = 0; row < nrows; row++) { |
| 1149 | int n = row; |
| 1150 | int nc; |
| 1151 | |
Denis Vlasenko | 0a8a774 | 2006-12-21 22:27:10 +0000 | [diff] [blame] | 1152 | for (nc = 1; nc < ncols && n+nrows < nfiles; n += nrows, nc++) { |
Denis Vlasenko | d56b47f | 2006-12-21 22:24:46 +0000 | [diff] [blame] | 1153 | printf("%s%-*s", matches[n], |
Tomas Heinrich | 11bcf4b | 2010-06-01 08:33:18 +0200 | [diff] [blame] | 1154 | (int)(column_width - unicode_strwidth(matches[n])), "" |
Denys Vlasenko | 53fd1bf | 2009-07-16 02:19:39 +0200 | [diff] [blame] | 1155 | ); |
"Vladimir N. Oleynik" | fdb871c | 2006-01-25 11:53:47 +0000 | [diff] [blame] | 1156 | } |
Tomas Heinrich | 11bcf4b | 2010-06-01 08:33:18 +0200 | [diff] [blame] | 1157 | if (ENABLE_UNICODE_SUPPORT) |
Denys Vlasenko | 349d72c | 2018-09-30 16:56:56 +0200 | [diff] [blame] | 1158 | puts(printable_string(matches[n])); |
Tomas Heinrich | 11bcf4b | 2010-06-01 08:33:18 +0200 | [diff] [blame] | 1159 | else |
| 1160 | puts(matches[n]); |
Glenn L McGrath | 4d00129 | 2003-01-06 01:11:50 +0000 | [diff] [blame] | 1161 | } |
| 1162 | } |
| 1163 | |
Mike Shal | f376303 | 2010-11-22 03:49:18 +0100 | [diff] [blame] | 1164 | static const char *is_special_char(char c) |
| 1165 | { |
Denys Vlasenko | 6d2463a | 2021-09-17 17:32:30 +0200 | [diff] [blame] | 1166 | // {: It's mandatory to escape { only if entire name is "{" |
| 1167 | // (otherwise it's not special. Example: file named "{ " |
| 1168 | // can be escaped simply as "{\ "; "{a" or "a{" need no escaping), |
| 1169 | // or if shell supports brace expansion |
| 1170 | // (ash doesn't, hush optionally does). |
| 1171 | // (): unlike {, shell treats () specially even in contexts |
| 1172 | // where they clearly are not valid (e.g. "echo )" is an error). |
| 1173 | // #: needs escaping to not start a shell comment. |
| 1174 | return strchr(" `'\"\\#$~?*[{()&;|<>", c); |
| 1175 | // Used to also have %^=+}]: but not necessary to escape? |
Mike Shal | f376303 | 2010-11-22 03:49:18 +0100 | [diff] [blame] | 1176 | } |
| 1177 | |
| 1178 | static char *quote_special_chars(char *found) |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 1179 | { |
| 1180 | int l = 0; |
Denys Vlasenko | 53fd1bf | 2009-07-16 02:19:39 +0200 | [diff] [blame] | 1181 | char *s = xzalloc((strlen(found) + 1) * 2); |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 1182 | |
| 1183 | while (*found) { |
Mike Shal | f376303 | 2010-11-22 03:49:18 +0100 | [diff] [blame] | 1184 | if (is_special_char(*found)) |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 1185 | s[l++] = '\\'; |
| 1186 | s[l++] = *found++; |
| 1187 | } |
Denys Vlasenko | 53fd1bf | 2009-07-16 02:19:39 +0200 | [diff] [blame] | 1188 | /* s[l] = '\0'; - already is */ |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 1189 | return s; |
| 1190 | } |
| 1191 | |
Denis Vlasenko | 5592fac | 2007-01-21 19:19:46 +0000 | [diff] [blame] | 1192 | /* Do TAB completion */ |
Denys Vlasenko | 57ea9b4 | 2010-09-03 12:51:36 +0200 | [diff] [blame] | 1193 | static NOINLINE void input_tab(smallint *lastWasTab) |
Erik Andersen | f0657d3 | 2000-04-12 17:49:52 +0000 | [diff] [blame] | 1194 | { |
Denys Vlasenko | ba0e103 | 2010-09-03 14:08:24 +0200 | [diff] [blame] | 1195 | char *chosen_match; |
Denys Vlasenko | 76939e7 | 2010-09-03 14:09:24 +0200 | [diff] [blame] | 1196 | char *match_buf; |
Denys Vlasenko | ba0e103 | 2010-09-03 14:08:24 +0200 | [diff] [blame] | 1197 | size_t len_found; |
Denys Vlasenko | ba0e103 | 2010-09-03 14:08:24 +0200 | [diff] [blame] | 1198 | /* Length of string used for matching */ |
| 1199 | unsigned match_pfx_len = match_pfx_len; |
| 1200 | int find_type; |
Mike Shal | f376303 | 2010-11-22 03:49:18 +0100 | [diff] [blame] | 1201 | # if ENABLE_UNICODE_SUPPORT |
Denys Vlasenko | ba0e103 | 2010-09-03 14:08:24 +0200 | [diff] [blame] | 1202 | /* cursor pos in command converted to multibyte form */ |
| 1203 | int cursor_mb; |
Mike Shal | f376303 | 2010-11-22 03:49:18 +0100 | [diff] [blame] | 1204 | # endif |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 1205 | if (!(state->flags & TAB_COMPLETION)) |
| 1206 | return; |
| 1207 | |
Denys Vlasenko | ba0e103 | 2010-09-03 14:08:24 +0200 | [diff] [blame] | 1208 | if (*lastWasTab) { |
| 1209 | /* The last char was a TAB too. |
| 1210 | * Print a list of all the available choices. |
| 1211 | */ |
Denys Vlasenko | a46e16e | 2010-09-03 13:05:51 +0200 | [diff] [blame] | 1212 | if (num_matches > 0) { |
| 1213 | /* cursor will be changed by goto_new_line() */ |
Denys Vlasenko | 044b180 | 2009-07-12 02:50:35 +0200 | [diff] [blame] | 1214 | int sav_cursor = cursor; |
Mark Whitley | 4e33875 | 2001-01-26 20:42:23 +0000 | [diff] [blame] | 1215 | goto_new_line(); |
"Vladimir N. Oleynik" | fdb871c | 2006-01-25 11:53:47 +0000 | [diff] [blame] | 1216 | showfiles(); |
Avi Halachmi | 0fd5dbb | 2017-10-12 16:38:35 +0200 | [diff] [blame] | 1217 | draw_full(command_len - sav_cursor); |
Erik Andersen | f0657d3 | 2000-04-12 17:49:52 +0000 | [diff] [blame] | 1218 | } |
Denys Vlasenko | ba0e103 | 2010-09-03 14:08:24 +0200 | [diff] [blame] | 1219 | return; |
Erik Andersen | f0657d3 | 2000-04-12 17:49:52 +0000 | [diff] [blame] | 1220 | } |
Denys Vlasenko | ba0e103 | 2010-09-03 14:08:24 +0200 | [diff] [blame] | 1221 | |
| 1222 | *lastWasTab = 1; |
Denys Vlasenko | 76939e7 | 2010-09-03 14:09:24 +0200 | [diff] [blame] | 1223 | chosen_match = NULL; |
Denys Vlasenko | ba0e103 | 2010-09-03 14:08:24 +0200 | [diff] [blame] | 1224 | |
Denys Vlasenko | 76939e7 | 2010-09-03 14:09:24 +0200 | [diff] [blame] | 1225 | /* Make a local copy of the string up to the position of the cursor. |
| 1226 | * build_match_prefix will expand it into int16_t's, need to allocate |
| 1227 | * twice as much as the string_len+1. |
| 1228 | * (we then also (ab)use this extra space later - see (**)) |
| 1229 | */ |
| 1230 | match_buf = xmalloc(MAX_LINELEN * sizeof(int16_t)); |
Mike Shal | f376303 | 2010-11-22 03:49:18 +0100 | [diff] [blame] | 1231 | # if !ENABLE_UNICODE_SUPPORT |
Denys Vlasenko | 76939e7 | 2010-09-03 14:09:24 +0200 | [diff] [blame] | 1232 | save_string(match_buf, cursor + 1); /* +1 for NUL */ |
Mike Shal | f376303 | 2010-11-22 03:49:18 +0100 | [diff] [blame] | 1233 | # else |
Denys Vlasenko | ba0e103 | 2010-09-03 14:08:24 +0200 | [diff] [blame] | 1234 | { |
| 1235 | CHAR_T wc = command_ps[cursor]; |
| 1236 | command_ps[cursor] = BB_NUL; |
Denys Vlasenko | 76939e7 | 2010-09-03 14:09:24 +0200 | [diff] [blame] | 1237 | save_string(match_buf, MAX_LINELEN); |
Denys Vlasenko | ba0e103 | 2010-09-03 14:08:24 +0200 | [diff] [blame] | 1238 | command_ps[cursor] = wc; |
Denys Vlasenko | 76939e7 | 2010-09-03 14:09:24 +0200 | [diff] [blame] | 1239 | cursor_mb = strlen(match_buf); |
Denys Vlasenko | ba0e103 | 2010-09-03 14:08:24 +0200 | [diff] [blame] | 1240 | } |
Mike Shal | f376303 | 2010-11-22 03:49:18 +0100 | [diff] [blame] | 1241 | # endif |
Denys Vlasenko | 76939e7 | 2010-09-03 14:09:24 +0200 | [diff] [blame] | 1242 | find_type = build_match_prefix(match_buf); |
Denys Vlasenko | ba0e103 | 2010-09-03 14:08:24 +0200 | [diff] [blame] | 1243 | |
| 1244 | /* Free up any memory already allocated */ |
| 1245 | free_tab_completion_data(); |
| 1246 | |
Mike Shal | f376303 | 2010-11-22 03:49:18 +0100 | [diff] [blame] | 1247 | # if ENABLE_FEATURE_USERNAME_COMPLETION |
| 1248 | /* If the word starts with ~ and there is no slash in the word, |
Denys Vlasenko | ba0e103 | 2010-09-03 14:08:24 +0200 | [diff] [blame] | 1249 | * then try completing this word as a username. */ |
| 1250 | if (state->flags & USERNAME_COMPLETION) |
Denys Vlasenko | 76939e7 | 2010-09-03 14:09:24 +0200 | [diff] [blame] | 1251 | if (match_buf[0] == '~' && strchr(match_buf, '/') == NULL) |
| 1252 | match_pfx_len = complete_username(match_buf); |
Mike Shal | f376303 | 2010-11-22 03:49:18 +0100 | [diff] [blame] | 1253 | # endif |
| 1254 | /* If complete_username() did not match, |
| 1255 | * try to match a command in $PATH, or a directory, or a file */ |
Denys Vlasenko | ba0e103 | 2010-09-03 14:08:24 +0200 | [diff] [blame] | 1256 | if (!matches) |
Denys Vlasenko | 76939e7 | 2010-09-03 14:09:24 +0200 | [diff] [blame] | 1257 | match_pfx_len = complete_cmd_dir_file(match_buf, find_type); |
Mike Shal | f376303 | 2010-11-22 03:49:18 +0100 | [diff] [blame] | 1258 | |
| 1259 | /* Account for backslashes which will be inserted |
| 1260 | * by quote_special_chars() later */ |
| 1261 | { |
| 1262 | const char *e = match_buf + strlen(match_buf); |
| 1263 | const char *s = e - match_pfx_len; |
| 1264 | while (s < e) |
| 1265 | if (is_special_char(*s++)) |
| 1266 | match_pfx_len++; |
| 1267 | } |
| 1268 | |
Denys Vlasenko | ba0e103 | 2010-09-03 14:08:24 +0200 | [diff] [blame] | 1269 | /* Remove duplicates */ |
| 1270 | if (matches) { |
Mike Shal | f376303 | 2010-11-22 03:49:18 +0100 | [diff] [blame] | 1271 | unsigned i, n = 0; |
Denys Vlasenko | ba0e103 | 2010-09-03 14:08:24 +0200 | [diff] [blame] | 1272 | qsort_string_vector(matches, num_matches); |
| 1273 | for (i = 0; i < num_matches - 1; ++i) { |
| 1274 | //if (matches[i] && matches[i+1]) { /* paranoia */ |
| 1275 | if (strcmp(matches[i], matches[i+1]) == 0) { |
| 1276 | free(matches[i]); |
| 1277 | //matches[i] = NULL; /* paranoia */ |
| 1278 | } else { |
| 1279 | matches[n++] = matches[i]; |
| 1280 | } |
| 1281 | //} |
| 1282 | } |
| 1283 | matches[n++] = matches[i]; |
| 1284 | num_matches = n; |
| 1285 | } |
Mike Shal | f376303 | 2010-11-22 03:49:18 +0100 | [diff] [blame] | 1286 | |
Denys Vlasenko | ba0e103 | 2010-09-03 14:08:24 +0200 | [diff] [blame] | 1287 | /* Did we find exactly one match? */ |
| 1288 | if (num_matches != 1) { /* no */ |
| 1289 | char *cp; |
| 1290 | beep(); |
| 1291 | if (!matches) |
Denys Vlasenko | 76939e7 | 2010-09-03 14:09:24 +0200 | [diff] [blame] | 1292 | goto ret; /* no matches at all */ |
Denys Vlasenko | ba0e103 | 2010-09-03 14:08:24 +0200 | [diff] [blame] | 1293 | /* Find common prefix */ |
| 1294 | chosen_match = xstrdup(matches[0]); |
| 1295 | for (cp = chosen_match; *cp; cp++) { |
| 1296 | unsigned n; |
| 1297 | for (n = 1; n < num_matches; n++) { |
| 1298 | if (matches[n][cp - chosen_match] != *cp) { |
| 1299 | goto stop; |
| 1300 | } |
| 1301 | } |
| 1302 | } |
| 1303 | stop: |
| 1304 | if (cp == chosen_match) { /* have unique prefix? */ |
Denys Vlasenko | 76939e7 | 2010-09-03 14:09:24 +0200 | [diff] [blame] | 1305 | goto ret; /* no */ |
Denys Vlasenko | ba0e103 | 2010-09-03 14:08:24 +0200 | [diff] [blame] | 1306 | } |
| 1307 | *cp = '\0'; |
Mike Shal | f376303 | 2010-11-22 03:49:18 +0100 | [diff] [blame] | 1308 | cp = quote_special_chars(chosen_match); |
Denys Vlasenko | ba0e103 | 2010-09-03 14:08:24 +0200 | [diff] [blame] | 1309 | free(chosen_match); |
| 1310 | chosen_match = cp; |
| 1311 | len_found = strlen(chosen_match); |
| 1312 | } else { /* exactly one match */ |
| 1313 | /* Next <tab> is not a double-tab */ |
| 1314 | *lastWasTab = 0; |
| 1315 | |
Mike Shal | f376303 | 2010-11-22 03:49:18 +0100 | [diff] [blame] | 1316 | chosen_match = quote_special_chars(matches[0]); |
Denys Vlasenko | ba0e103 | 2010-09-03 14:08:24 +0200 | [diff] [blame] | 1317 | len_found = strlen(chosen_match); |
| 1318 | if (chosen_match[len_found-1] != '/') { |
| 1319 | chosen_match[len_found] = ' '; |
| 1320 | chosen_match[++len_found] = '\0'; |
| 1321 | } |
| 1322 | } |
| 1323 | |
Mike Shal | f376303 | 2010-11-22 03:49:18 +0100 | [diff] [blame] | 1324 | # if !ENABLE_UNICODE_SUPPORT |
Denys Vlasenko | ba0e103 | 2010-09-03 14:08:24 +0200 | [diff] [blame] | 1325 | /* Have space to place the match? */ |
| 1326 | /* The result consists of three parts with these lengths: */ |
| 1327 | /* cursor + (len_found - match_pfx_len) + (command_len - cursor) */ |
| 1328 | /* it simplifies into: */ |
| 1329 | if ((int)(len_found - match_pfx_len + command_len) < S.maxsize) { |
| 1330 | int pos; |
| 1331 | /* save tail */ |
Denys Vlasenko | 76939e7 | 2010-09-03 14:09:24 +0200 | [diff] [blame] | 1332 | strcpy(match_buf, &command_ps[cursor]); |
Denys Vlasenko | ba0e103 | 2010-09-03 14:08:24 +0200 | [diff] [blame] | 1333 | /* add match and tail */ |
Denys Vlasenko | 76939e7 | 2010-09-03 14:09:24 +0200 | [diff] [blame] | 1334 | sprintf(&command_ps[cursor], "%s%s", chosen_match + match_pfx_len, match_buf); |
Denys Vlasenko | ba0e103 | 2010-09-03 14:08:24 +0200 | [diff] [blame] | 1335 | command_len = strlen(command_ps); |
| 1336 | /* new pos */ |
| 1337 | pos = cursor + len_found - match_pfx_len; |
| 1338 | /* write out the matched command */ |
| 1339 | redraw(cmdedit_y, command_len - pos); |
| 1340 | } |
Mike Shal | f376303 | 2010-11-22 03:49:18 +0100 | [diff] [blame] | 1341 | # else |
Denys Vlasenko | ba0e103 | 2010-09-03 14:08:24 +0200 | [diff] [blame] | 1342 | { |
Denys Vlasenko | 76939e7 | 2010-09-03 14:09:24 +0200 | [diff] [blame] | 1343 | /* Use 2nd half of match_buf as scratch space - see (**) */ |
| 1344 | char *command = match_buf + MAX_LINELEN; |
| 1345 | int len = save_string(command, MAX_LINELEN); |
Denys Vlasenko | ba0e103 | 2010-09-03 14:08:24 +0200 | [diff] [blame] | 1346 | /* Have space to place the match? */ |
| 1347 | /* cursor_mb + (len_found - match_pfx_len) + (len - cursor_mb) */ |
| 1348 | if ((int)(len_found - match_pfx_len + len) < MAX_LINELEN) { |
| 1349 | int pos; |
| 1350 | /* save tail */ |
Denys Vlasenko | 76939e7 | 2010-09-03 14:09:24 +0200 | [diff] [blame] | 1351 | strcpy(match_buf, &command[cursor_mb]); |
Denys Vlasenko | ba0e103 | 2010-09-03 14:08:24 +0200 | [diff] [blame] | 1352 | /* where do we want to have cursor after all? */ |
| 1353 | strcpy(&command[cursor_mb], chosen_match + match_pfx_len); |
Denys Vlasenko | a669eca | 2011-07-11 07:36:59 +0200 | [diff] [blame] | 1354 | len = load_string(command); |
Denys Vlasenko | ba0e103 | 2010-09-03 14:08:24 +0200 | [diff] [blame] | 1355 | /* add match and tail */ |
Denys Vlasenko | fe2d806 | 2021-04-14 17:52:18 +0200 | [diff] [blame] | 1356 | stpcpy(stpcpy(&command[cursor_mb], chosen_match + match_pfx_len), match_buf); |
Denys Vlasenko | a669eca | 2011-07-11 07:36:59 +0200 | [diff] [blame] | 1357 | command_len = load_string(command); |
Denys Vlasenko | ba0e103 | 2010-09-03 14:08:24 +0200 | [diff] [blame] | 1358 | /* write out the matched command */ |
| 1359 | /* paranoia: load_string can return 0 on conv error, |
| 1360 | * prevent passing pos = (0 - 12) to redraw */ |
| 1361 | pos = command_len - len; |
| 1362 | redraw(cmdedit_y, pos >= 0 ? pos : 0); |
| 1363 | } |
| 1364 | } |
Mike Shal | f376303 | 2010-11-22 03:49:18 +0100 | [diff] [blame] | 1365 | # endif |
Denys Vlasenko | 76939e7 | 2010-09-03 14:09:24 +0200 | [diff] [blame] | 1366 | ret: |
Denys Vlasenko | ba0e103 | 2010-09-03 14:08:24 +0200 | [diff] [blame] | 1367 | free(chosen_match); |
Denys Vlasenko | 76939e7 | 2010-09-03 14:09:24 +0200 | [diff] [blame] | 1368 | free(match_buf); |
Erik Andersen | f0657d3 | 2000-04-12 17:49:52 +0000 | [diff] [blame] | 1369 | } |
Denis Vlasenko | 5592fac | 2007-01-21 19:19:46 +0000 | [diff] [blame] | 1370 | |
Denys Vlasenko | 57ea9b4 | 2010-09-03 12:51:36 +0200 | [diff] [blame] | 1371 | #endif /* FEATURE_TAB_COMPLETION */ |
Erik Andersen | f0657d3 | 2000-04-12 17:49:52 +0000 | [diff] [blame] | 1372 | |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 1373 | |
Denis Vlasenko | c0ea82a | 2009-03-23 06:33:37 +0000 | [diff] [blame] | 1374 | line_input_t* FAST_FUNC new_line_input_t(int flags) |
| 1375 | { |
| 1376 | line_input_t *n = xzalloc(sizeof(*n)); |
| 1377 | n->flags = flags; |
Denys Vlasenko | 84ea60e | 2017-08-02 17:27:28 +0200 | [diff] [blame] | 1378 | n->timeout = -1; |
Denys Vlasenko | 79df481 | 2014-01-10 14:38:26 +0100 | [diff] [blame] | 1379 | #if MAX_HISTORY > 0 |
Denys Vlasenko | 2c4de5b | 2011-03-31 13:16:52 +0200 | [diff] [blame] | 1380 | n->max_history = MAX_HISTORY; |
Denys Vlasenko | 79df481 | 2014-01-10 14:38:26 +0100 | [diff] [blame] | 1381 | #endif |
Denis Vlasenko | c0ea82a | 2009-03-23 06:33:37 +0000 | [diff] [blame] | 1382 | return n; |
| 1383 | } |
| 1384 | |
| 1385 | |
Denis Vlasenko | 9d4533e | 2006-11-02 22:09:37 +0000 | [diff] [blame] | 1386 | #if MAX_HISTORY > 0 |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 1387 | |
Flemming Madsen | d96ffda | 2013-04-07 18:47:24 +0200 | [diff] [blame] | 1388 | unsigned FAST_FUNC size_from_HISTFILESIZE(const char *hp) |
Denys Vlasenko | 2c4de5b | 2011-03-31 13:16:52 +0200 | [diff] [blame] | 1389 | { |
| 1390 | int size = MAX_HISTORY; |
| 1391 | if (hp) { |
| 1392 | size = atoi(hp); |
| 1393 | if (size <= 0) |
| 1394 | return 1; |
| 1395 | if (size > MAX_HISTORY) |
| 1396 | return MAX_HISTORY; |
| 1397 | } |
| 1398 | return size; |
| 1399 | } |
| 1400 | |
Denis Vlasenko | 682ad30 | 2008-09-27 01:28:56 +0000 | [diff] [blame] | 1401 | static void save_command_ps_at_cur_history(void) |
Erik Andersen | f0657d3 | 2000-04-12 17:49:52 +0000 | [diff] [blame] | 1402 | { |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 1403 | if (command_ps[0] != BB_NUL) { |
Denis Vlasenko | 682ad30 | 2008-09-27 01:28:56 +0000 | [diff] [blame] | 1404 | int cur = state->cur_history; |
| 1405 | free(state->history[cur]); |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 1406 | |
Denys Vlasenko | 19158a8 | 2010-03-26 14:06:56 +0100 | [diff] [blame] | 1407 | # if ENABLE_UNICODE_SUPPORT |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 1408 | { |
| 1409 | char tbuf[MAX_LINELEN]; |
| 1410 | save_string(tbuf, sizeof(tbuf)); |
| 1411 | state->history[cur] = xstrdup(tbuf); |
| 1412 | } |
Denys Vlasenko | db9c57e | 2009-09-27 02:48:53 +0200 | [diff] [blame] | 1413 | # else |
Denis Vlasenko | 682ad30 | 2008-09-27 01:28:56 +0000 | [diff] [blame] | 1414 | state->history[cur] = xstrdup(command_ps); |
Denys Vlasenko | db9c57e | 2009-09-27 02:48:53 +0200 | [diff] [blame] | 1415 | # endif |
Glenn L McGrath | 062c74f | 2002-11-27 09:29:49 +0000 | [diff] [blame] | 1416 | } |
Denis Vlasenko | 682ad30 | 2008-09-27 01:28:56 +0000 | [diff] [blame] | 1417 | } |
| 1418 | |
| 1419 | /* state->flags is already checked to be nonzero */ |
| 1420 | static int get_previous_history(void) |
| 1421 | { |
| 1422 | if ((state->flags & DO_HISTORY) && state->cur_history) { |
| 1423 | save_command_ps_at_cur_history(); |
| 1424 | state->cur_history--; |
| 1425 | return 1; |
| 1426 | } |
| 1427 | beep(); |
| 1428 | return 0; |
Erik Andersen | f0657d3 | 2000-04-12 17:49:52 +0000 | [diff] [blame] | 1429 | } |
| 1430 | |
Glenn L McGrath | 062c74f | 2002-11-27 09:29:49 +0000 | [diff] [blame] | 1431 | static int get_next_history(void) |
Erik Andersen | f0657d3 | 2000-04-12 17:49:52 +0000 | [diff] [blame] | 1432 | { |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 1433 | if (state->flags & DO_HISTORY) { |
Denis Vlasenko | 682ad30 | 2008-09-27 01:28:56 +0000 | [diff] [blame] | 1434 | if (state->cur_history < state->cnt_history) { |
| 1435 | save_command_ps_at_cur_history(); /* save the current history line */ |
| 1436 | return ++state->cur_history; |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 1437 | } |
Glenn L McGrath | 062c74f | 2002-11-27 09:29:49 +0000 | [diff] [blame] | 1438 | } |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 1439 | beep(); |
| 1440 | return 0; |
Erik Andersen | f0657d3 | 2000-04-12 17:49:52 +0000 | [diff] [blame] | 1441 | } |
Robert Griebl | 350d26b | 2002-12-03 22:45:46 +0000 | [diff] [blame] | 1442 | |
Flemming Madsen | d96ffda | 2013-04-07 18:47:24 +0200 | [diff] [blame] | 1443 | /* Lists command history. Used by shell 'history' builtins */ |
| 1444 | void FAST_FUNC show_history(const line_input_t *st) |
| 1445 | { |
| 1446 | int i; |
| 1447 | |
| 1448 | if (!st) |
| 1449 | return; |
| 1450 | for (i = 0; i < st->cnt_history; i++) |
| 1451 | printf("%4d %s\n", i, st->history[i]); |
| 1452 | } |
| 1453 | |
Denys Vlasenko | 00eb23b | 2020-12-21 21:36:58 +0100 | [diff] [blame] | 1454 | # if ENABLE_FEATURE_EDITING_SAVEHISTORY |
Denys Vlasenko | 3d27d43 | 2018-12-27 18:03:20 +0100 | [diff] [blame] | 1455 | void FAST_FUNC free_line_input_t(line_input_t *n) |
| 1456 | { |
Denys Vlasenko | 00eb23b | 2020-12-21 21:36:58 +0100 | [diff] [blame] | 1457 | if (n) { |
| 1458 | int i = n->cnt_history; |
| 1459 | while (i > 0) |
| 1460 | free(n->history[--i]); |
| 1461 | free(n); |
| 1462 | } |
Denys Vlasenko | 3d27d43 | 2018-12-27 18:03:20 +0100 | [diff] [blame] | 1463 | } |
Denys Vlasenko | 00eb23b | 2020-12-21 21:36:58 +0100 | [diff] [blame] | 1464 | # else |
| 1465 | /* #defined to free() in libbb.h */ |
| 1466 | # endif |
Denys Vlasenko | 3d27d43 | 2018-12-27 18:03:20 +0100 | [diff] [blame] | 1467 | |
Denys Vlasenko | db9c57e | 2009-09-27 02:48:53 +0200 | [diff] [blame] | 1468 | # if ENABLE_FEATURE_EDITING_SAVEHISTORY |
Denis Vlasenko | 57abf9e | 2009-03-22 19:00:05 +0000 | [diff] [blame] | 1469 | /* We try to ensure that concurrent additions to the history |
Denis Vlasenko | c0ea82a | 2009-03-23 06:33:37 +0000 | [diff] [blame] | 1470 | * do not overwrite each other. |
Denis Vlasenko | 57abf9e | 2009-03-22 19:00:05 +0000 | [diff] [blame] | 1471 | * Otherwise shell users get unhappy. |
| 1472 | * |
| 1473 | * History file is trimmed lazily, when it grows several times longer |
| 1474 | * than configured MAX_HISTORY lines. |
| 1475 | */ |
| 1476 | |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 1477 | /* state->flags is already checked to be nonzero */ |
Denis Vlasenko | c0ea82a | 2009-03-23 06:33:37 +0000 | [diff] [blame] | 1478 | static void load_history(line_input_t *st_parm) |
Glenn L McGrath | fdbbb04 | 2002-12-09 11:10:40 +0000 | [diff] [blame] | 1479 | { |
Denis Vlasenko | 57abf9e | 2009-03-22 19:00:05 +0000 | [diff] [blame] | 1480 | char *temp_h[MAX_HISTORY]; |
| 1481 | char *line; |
Robert Griebl | 350d26b | 2002-12-03 22:45:46 +0000 | [diff] [blame] | 1482 | FILE *fp; |
Denis Vlasenko | 57abf9e | 2009-03-22 19:00:05 +0000 | [diff] [blame] | 1483 | unsigned idx, i, line_len; |
Robert Griebl | 350d26b | 2002-12-03 22:45:46 +0000 | [diff] [blame] | 1484 | |
Denis Vlasenko | 08ec67b | 2008-03-26 13:32:30 +0000 | [diff] [blame] | 1485 | /* NB: do not trash old history if file can't be opened */ |
Robert Griebl | 350d26b | 2002-12-03 22:45:46 +0000 | [diff] [blame] | 1486 | |
Denis Vlasenko | c0ea82a | 2009-03-23 06:33:37 +0000 | [diff] [blame] | 1487 | fp = fopen_for_read(st_parm->hist_file); |
Denis Vlasenko | 0a8a774 | 2006-12-21 22:27:10 +0000 | [diff] [blame] | 1488 | if (fp) { |
Denis Vlasenko | 08ec67b | 2008-03-26 13:32:30 +0000 | [diff] [blame] | 1489 | /* clean up old history */ |
Denis Vlasenko | c0ea82a | 2009-03-23 06:33:37 +0000 | [diff] [blame] | 1490 | for (idx = st_parm->cnt_history; idx > 0;) { |
Denis Vlasenko | 57abf9e | 2009-03-22 19:00:05 +0000 | [diff] [blame] | 1491 | idx--; |
Denis Vlasenko | c0ea82a | 2009-03-23 06:33:37 +0000 | [diff] [blame] | 1492 | free(st_parm->history[idx]); |
| 1493 | st_parm->history[idx] = NULL; |
Denis Vlasenko | 08ec67b | 2008-03-26 13:32:30 +0000 | [diff] [blame] | 1494 | } |
| 1495 | |
Denis Vlasenko | 57abf9e | 2009-03-22 19:00:05 +0000 | [diff] [blame] | 1496 | /* fill temp_h[], retaining only last MAX_HISTORY lines */ |
| 1497 | memset(temp_h, 0, sizeof(temp_h)); |
Denys Vlasenko | bede215 | 2011-09-04 16:12:33 +0200 | [diff] [blame] | 1498 | idx = 0; |
Dennis Groenen | deee356 | 2012-04-24 22:40:58 +0200 | [diff] [blame] | 1499 | st_parm->cnt_history_in_file = 0; |
Denis Vlasenko | 57abf9e | 2009-03-22 19:00:05 +0000 | [diff] [blame] | 1500 | while ((line = xmalloc_fgetline(fp)) != NULL) { |
| 1501 | if (line[0] == '\0') { |
| 1502 | free(line); |
Glenn L McGrath | fdbbb04 | 2002-12-09 11:10:40 +0000 | [diff] [blame] | 1503 | continue; |
| 1504 | } |
Denis Vlasenko | 57abf9e | 2009-03-22 19:00:05 +0000 | [diff] [blame] | 1505 | free(temp_h[idx]); |
| 1506 | temp_h[idx] = line; |
Dennis Groenen | deee356 | 2012-04-24 22:40:58 +0200 | [diff] [blame] | 1507 | st_parm->cnt_history_in_file++; |
Denis Vlasenko | 57abf9e | 2009-03-22 19:00:05 +0000 | [diff] [blame] | 1508 | idx++; |
Denys Vlasenko | 2c4de5b | 2011-03-31 13:16:52 +0200 | [diff] [blame] | 1509 | if (idx == st_parm->max_history) |
Denis Vlasenko | 57abf9e | 2009-03-22 19:00:05 +0000 | [diff] [blame] | 1510 | idx = 0; |
Robert Griebl | 350d26b | 2002-12-03 22:45:46 +0000 | [diff] [blame] | 1511 | } |
Denis Vlasenko | 0a8a774 | 2006-12-21 22:27:10 +0000 | [diff] [blame] | 1512 | fclose(fp); |
Denis Vlasenko | 57abf9e | 2009-03-22 19:00:05 +0000 | [diff] [blame] | 1513 | |
| 1514 | /* find first non-NULL temp_h[], if any */ |
Denis Vlasenko | c0ea82a | 2009-03-23 06:33:37 +0000 | [diff] [blame] | 1515 | if (st_parm->cnt_history_in_file) { |
Denis Vlasenko | 57abf9e | 2009-03-22 19:00:05 +0000 | [diff] [blame] | 1516 | while (temp_h[idx] == NULL) { |
| 1517 | idx++; |
Denys Vlasenko | 2c4de5b | 2011-03-31 13:16:52 +0200 | [diff] [blame] | 1518 | if (idx == st_parm->max_history) |
Denis Vlasenko | 57abf9e | 2009-03-22 19:00:05 +0000 | [diff] [blame] | 1519 | idx = 0; |
| 1520 | } |
| 1521 | } |
| 1522 | |
Denis Vlasenko | c0ea82a | 2009-03-23 06:33:37 +0000 | [diff] [blame] | 1523 | /* copy temp_h[] to st_parm->history[] */ |
Denys Vlasenko | 2c4de5b | 2011-03-31 13:16:52 +0200 | [diff] [blame] | 1524 | for (i = 0; i < st_parm->max_history;) { |
Denis Vlasenko | 57abf9e | 2009-03-22 19:00:05 +0000 | [diff] [blame] | 1525 | line = temp_h[idx]; |
| 1526 | if (!line) |
| 1527 | break; |
| 1528 | idx++; |
Denys Vlasenko | 2c4de5b | 2011-03-31 13:16:52 +0200 | [diff] [blame] | 1529 | if (idx == st_parm->max_history) |
Denis Vlasenko | 57abf9e | 2009-03-22 19:00:05 +0000 | [diff] [blame] | 1530 | idx = 0; |
| 1531 | line_len = strlen(line); |
| 1532 | if (line_len >= MAX_LINELEN) |
| 1533 | line[MAX_LINELEN-1] = '\0'; |
Denis Vlasenko | c0ea82a | 2009-03-23 06:33:37 +0000 | [diff] [blame] | 1534 | st_parm->history[i++] = line; |
Denis Vlasenko | 57abf9e | 2009-03-22 19:00:05 +0000 | [diff] [blame] | 1535 | } |
Denis Vlasenko | c0ea82a | 2009-03-23 06:33:37 +0000 | [diff] [blame] | 1536 | st_parm->cnt_history = i; |
Denys Vlasenko | bede215 | 2011-09-04 16:12:33 +0200 | [diff] [blame] | 1537 | if (ENABLE_FEATURE_EDITING_SAVE_ON_EXIT) |
| 1538 | st_parm->cnt_history_in_file = i; |
Robert Griebl | 350d26b | 2002-12-03 22:45:46 +0000 | [diff] [blame] | 1539 | } |
Robert Griebl | 350d26b | 2002-12-03 22:45:46 +0000 | [diff] [blame] | 1540 | } |
| 1541 | |
Denys Vlasenko | bede215 | 2011-09-04 16:12:33 +0200 | [diff] [blame] | 1542 | # if ENABLE_FEATURE_EDITING_SAVE_ON_EXIT |
| 1543 | void save_history(line_input_t *st) |
| 1544 | { |
| 1545 | FILE *fp; |
| 1546 | |
Denys Vlasenko | 00eb23b | 2020-12-21 21:36:58 +0100 | [diff] [blame] | 1547 | if (!st || !st->hist_file) |
Denys Vlasenko | bede215 | 2011-09-04 16:12:33 +0200 | [diff] [blame] | 1548 | return; |
| 1549 | if (st->cnt_history <= st->cnt_history_in_file) |
| 1550 | return; |
| 1551 | |
| 1552 | fp = fopen(st->hist_file, "a"); |
| 1553 | if (fp) { |
| 1554 | int i, fd; |
| 1555 | char *new_name; |
| 1556 | line_input_t *st_temp; |
| 1557 | |
| 1558 | for (i = st->cnt_history_in_file; i < st->cnt_history; i++) |
| 1559 | fprintf(fp, "%s\n", st->history[i]); |
| 1560 | fclose(fp); |
| 1561 | |
| 1562 | /* we may have concurrently written entries from others. |
| 1563 | * load them */ |
| 1564 | st_temp = new_line_input_t(st->flags); |
| 1565 | st_temp->hist_file = st->hist_file; |
| 1566 | st_temp->max_history = st->max_history; |
| 1567 | load_history(st_temp); |
| 1568 | |
| 1569 | /* write out temp file and replace hist_file atomically */ |
| 1570 | new_name = xasprintf("%s.%u.new", st->hist_file, (int) getpid()); |
| 1571 | fd = open(new_name, O_WRONLY | O_CREAT | O_TRUNC, 0600); |
| 1572 | if (fd >= 0) { |
| 1573 | fp = xfdopen_for_write(fd); |
| 1574 | for (i = 0; i < st_temp->cnt_history; i++) |
| 1575 | fprintf(fp, "%s\n", st_temp->history[i]); |
| 1576 | fclose(fp); |
| 1577 | if (rename(new_name, st->hist_file) == 0) |
| 1578 | st->cnt_history_in_file = st_temp->cnt_history; |
| 1579 | } |
| 1580 | free(new_name); |
| 1581 | free_line_input_t(st_temp); |
| 1582 | } |
| 1583 | } |
| 1584 | # else |
Denis Vlasenko | 57abf9e | 2009-03-22 19:00:05 +0000 | [diff] [blame] | 1585 | static void save_history(char *str) |
Robert Griebl | 350d26b | 2002-12-03 22:45:46 +0000 | [diff] [blame] | 1586 | { |
Denis Vlasenko | 57abf9e | 2009-03-22 19:00:05 +0000 | [diff] [blame] | 1587 | int fd; |
Denis Vlasenko | c0ea82a | 2009-03-23 06:33:37 +0000 | [diff] [blame] | 1588 | int len, len2; |
Eric Andersen | c470f44 | 2003-07-28 09:56:35 +0000 | [diff] [blame] | 1589 | |
Denys Vlasenko | bede215 | 2011-09-04 16:12:33 +0200 | [diff] [blame] | 1590 | if (!state->hist_file) |
| 1591 | return; |
| 1592 | |
Wolfram Sang | 2e9aeae | 2010-11-15 02:58:28 +0100 | [diff] [blame] | 1593 | fd = open(state->hist_file, O_WRONLY | O_CREAT | O_APPEND, 0600); |
Denis Vlasenko | 57abf9e | 2009-03-22 19:00:05 +0000 | [diff] [blame] | 1594 | if (fd < 0) |
| 1595 | return; |
Denis Vlasenko | c0ea82a | 2009-03-23 06:33:37 +0000 | [diff] [blame] | 1596 | xlseek(fd, 0, SEEK_END); /* paranoia */ |
| 1597 | len = strlen(str); |
| 1598 | str[len] = '\n'; /* we (try to) do atomic write */ |
| 1599 | len2 = full_write(fd, str, len + 1); |
| 1600 | str[len] = '\0'; |
Denis Vlasenko | 57abf9e | 2009-03-22 19:00:05 +0000 | [diff] [blame] | 1601 | close(fd); |
Denis Vlasenko | c0ea82a | 2009-03-23 06:33:37 +0000 | [diff] [blame] | 1602 | if (len2 != len + 1) |
| 1603 | return; /* "wtf?" */ |
Denis Vlasenko | 57abf9e | 2009-03-22 19:00:05 +0000 | [diff] [blame] | 1604 | |
| 1605 | /* did we write so much that history file needs trimming? */ |
Denis Vlasenko | c0ea82a | 2009-03-23 06:33:37 +0000 | [diff] [blame] | 1606 | state->cnt_history_in_file++; |
Denys Vlasenko | 2c4de5b | 2011-03-31 13:16:52 +0200 | [diff] [blame] | 1607 | if (state->cnt_history_in_file > state->max_history * 4) { |
Denis Vlasenko | 57abf9e | 2009-03-22 19:00:05 +0000 | [diff] [blame] | 1608 | char *new_name; |
Denis Vlasenko | c0ea82a | 2009-03-23 06:33:37 +0000 | [diff] [blame] | 1609 | line_input_t *st_temp; |
Denis Vlasenko | 57abf9e | 2009-03-22 19:00:05 +0000 | [diff] [blame] | 1610 | |
Denis Vlasenko | c0ea82a | 2009-03-23 06:33:37 +0000 | [diff] [blame] | 1611 | /* we may have concurrently written entries from others. |
| 1612 | * load them */ |
| 1613 | st_temp = new_line_input_t(state->flags); |
| 1614 | st_temp->hist_file = state->hist_file; |
Denys Vlasenko | e3d8d07 | 2011-03-31 14:39:38 +0200 | [diff] [blame] | 1615 | st_temp->max_history = state->max_history; |
Denis Vlasenko | c0ea82a | 2009-03-23 06:33:37 +0000 | [diff] [blame] | 1616 | load_history(st_temp); |
| 1617 | |
| 1618 | /* write out temp file and replace hist_file atomically */ |
| 1619 | new_name = xasprintf("%s.%u.new", state->hist_file, (int) getpid()); |
Denys Vlasenko | 4840ae8 | 2011-09-04 15:28:03 +0200 | [diff] [blame] | 1620 | fd = open(new_name, O_WRONLY | O_CREAT | O_TRUNC, 0600); |
Wolfram Sang | 2e9aeae | 2010-11-15 02:58:28 +0100 | [diff] [blame] | 1621 | if (fd >= 0) { |
| 1622 | FILE *fp; |
| 1623 | int i; |
| 1624 | |
| 1625 | fp = xfdopen_for_write(fd); |
Denis Vlasenko | c0ea82a | 2009-03-23 06:33:37 +0000 | [diff] [blame] | 1626 | for (i = 0; i < st_temp->cnt_history; i++) |
| 1627 | fprintf(fp, "%s\n", st_temp->history[i]); |
Denis Vlasenko | 57abf9e | 2009-03-22 19:00:05 +0000 | [diff] [blame] | 1628 | fclose(fp); |
Denis Vlasenko | c0ea82a | 2009-03-23 06:33:37 +0000 | [diff] [blame] | 1629 | if (rename(new_name, state->hist_file) == 0) |
| 1630 | state->cnt_history_in_file = st_temp->cnt_history; |
Denis Vlasenko | 57abf9e | 2009-03-22 19:00:05 +0000 | [diff] [blame] | 1631 | } |
| 1632 | free(new_name); |
Denis Vlasenko | c0ea82a | 2009-03-23 06:33:37 +0000 | [diff] [blame] | 1633 | free_line_input_t(st_temp); |
Robert Griebl | 350d26b | 2002-12-03 22:45:46 +0000 | [diff] [blame] | 1634 | } |
Robert Griebl | 350d26b | 2002-12-03 22:45:46 +0000 | [diff] [blame] | 1635 | } |
Denys Vlasenko | bede215 | 2011-09-04 16:12:33 +0200 | [diff] [blame] | 1636 | # endif |
Denys Vlasenko | db9c57e | 2009-09-27 02:48:53 +0200 | [diff] [blame] | 1637 | # else |
| 1638 | # define load_history(a) ((void)0) |
| 1639 | # define save_history(a) ((void)0) |
| 1640 | # endif /* FEATURE_COMMAND_SAVEHISTORY */ |
Robert Griebl | 350d26b | 2002-12-03 22:45:46 +0000 | [diff] [blame] | 1641 | |
Denis Vlasenko | 57abf9e | 2009-03-22 19:00:05 +0000 | [diff] [blame] | 1642 | static void remember_in_history(char *str) |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 1643 | { |
| 1644 | int i; |
| 1645 | |
| 1646 | if (!(state->flags & DO_HISTORY)) |
| 1647 | return; |
Denis Vlasenko | 682ad30 | 2008-09-27 01:28:56 +0000 | [diff] [blame] | 1648 | if (str[0] == '\0') |
| 1649 | return; |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 1650 | i = state->cnt_history; |
Denis Vlasenko | 682ad30 | 2008-09-27 01:28:56 +0000 | [diff] [blame] | 1651 | /* Don't save dupes */ |
| 1652 | if (i && strcmp(state->history[i-1], str) == 0) |
| 1653 | return; |
| 1654 | |
Denys Vlasenko | 2c4de5b | 2011-03-31 13:16:52 +0200 | [diff] [blame] | 1655 | free(state->history[state->max_history]); /* redundant, paranoia */ |
| 1656 | state->history[state->max_history] = NULL; /* redundant, paranoia */ |
Denis Vlasenko | 682ad30 | 2008-09-27 01:28:56 +0000 | [diff] [blame] | 1657 | |
| 1658 | /* If history[] is full, remove the oldest command */ |
Denys Vlasenko | 2c4de5b | 2011-03-31 13:16:52 +0200 | [diff] [blame] | 1659 | /* we need to keep history[state->max_history] empty, hence >=, not > */ |
| 1660 | if (i >= state->max_history) { |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 1661 | free(state->history[0]); |
Denys Vlasenko | 2c4de5b | 2011-03-31 13:16:52 +0200 | [diff] [blame] | 1662 | for (i = 0; i < state->max_history-1; i++) |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 1663 | state->history[i] = state->history[i+1]; |
Denys Vlasenko | 2c4de5b | 2011-03-31 13:16:52 +0200 | [diff] [blame] | 1664 | /* i == state->max_history-1 */ |
Denys Vlasenko | c0cae52 | 2011-11-04 01:09:09 +0100 | [diff] [blame] | 1665 | # if ENABLE_FEATURE_EDITING_SAVE_ON_EXIT |
| 1666 | if (state->cnt_history_in_file) |
Denys Vlasenko | bede215 | 2011-09-04 16:12:33 +0200 | [diff] [blame] | 1667 | state->cnt_history_in_file--; |
Denys Vlasenko | c0cae52 | 2011-11-04 01:09:09 +0100 | [diff] [blame] | 1668 | # endif |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 1669 | } |
Denys Vlasenko | 2c4de5b | 2011-03-31 13:16:52 +0200 | [diff] [blame] | 1670 | /* i <= state->max_history-1 */ |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 1671 | state->history[i++] = xstrdup(str); |
Denys Vlasenko | 2c4de5b | 2011-03-31 13:16:52 +0200 | [diff] [blame] | 1672 | /* i <= state->max_history */ |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 1673 | state->cur_history = i; |
| 1674 | state->cnt_history = i; |
Denys Vlasenko | bede215 | 2011-09-04 16:12:33 +0200 | [diff] [blame] | 1675 | # if ENABLE_FEATURE_EDITING_SAVEHISTORY && !ENABLE_FEATURE_EDITING_SAVE_ON_EXIT |
| 1676 | save_history(str); |
Denys Vlasenko | db9c57e | 2009-09-27 02:48:53 +0200 | [diff] [blame] | 1677 | # endif |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 1678 | } |
| 1679 | |
| 1680 | #else /* MAX_HISTORY == 0 */ |
Denys Vlasenko | db9c57e | 2009-09-27 02:48:53 +0200 | [diff] [blame] | 1681 | # define remember_in_history(a) ((void)0) |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 1682 | #endif /* MAX_HISTORY */ |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 1683 | |
| 1684 | |
Denys Vlasenko | a17eeb8 | 2009-10-25 23:50:56 +0100 | [diff] [blame] | 1685 | #if ENABLE_FEATURE_EDITING_VI |
Erik Andersen | 6273f65 | 2000-03-17 01:12:41 +0000 | [diff] [blame] | 1686 | /* |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 1687 | * vi mode implemented 2005 by Paul Fox <pgf@foxharp.boston.ma.us> |
Erik Andersen | 6273f65 | 2000-03-17 01:12:41 +0000 | [diff] [blame] | 1688 | */ |
"Vladimir N. Oleynik" | e4baaa2 | 2005-09-22 12:59:26 +0000 | [diff] [blame] | 1689 | static void |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 1690 | vi_Word_motion(int eat) |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 1691 | { |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 1692 | CHAR_T *command = command_ps; |
| 1693 | |
| 1694 | while (cursor < command_len && !BB_isspace(command[cursor])) |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 1695 | input_forward(); |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 1696 | if (eat) while (cursor < command_len && BB_isspace(command[cursor])) |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 1697 | input_forward(); |
| 1698 | } |
| 1699 | |
"Vladimir N. Oleynik" | e4baaa2 | 2005-09-22 12:59:26 +0000 | [diff] [blame] | 1700 | static void |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 1701 | vi_word_motion(int eat) |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 1702 | { |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 1703 | CHAR_T *command = command_ps; |
| 1704 | |
Natanael Copa | 7e6f931 | 2016-08-14 23:30:29 +0200 | [diff] [blame] | 1705 | if (BB_isalnum_or_underscore(command[cursor])) { |
Denis Vlasenko | 253ce00 | 2007-01-22 08:34:44 +0000 | [diff] [blame] | 1706 | while (cursor < command_len |
Natanael Copa | 7e6f931 | 2016-08-14 23:30:29 +0200 | [diff] [blame] | 1707 | && (BB_isalnum_or_underscore(command[cursor+1])) |
Denys Vlasenko | 1302892 | 2009-07-12 00:51:15 +0200 | [diff] [blame] | 1708 | ) { |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 1709 | input_forward(); |
Denys Vlasenko | 1302892 | 2009-07-12 00:51:15 +0200 | [diff] [blame] | 1710 | } |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 1711 | } else if (BB_ispunct(command[cursor])) { |
| 1712 | while (cursor < command_len && BB_ispunct(command[cursor+1])) |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 1713 | input_forward(); |
| 1714 | } |
| 1715 | |
Denis Vlasenko | 253ce00 | 2007-01-22 08:34:44 +0000 | [diff] [blame] | 1716 | if (cursor < command_len) |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 1717 | input_forward(); |
| 1718 | |
Denys Vlasenko | 1302892 | 2009-07-12 00:51:15 +0200 | [diff] [blame] | 1719 | if (eat) { |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 1720 | while (cursor < command_len && BB_isspace(command[cursor])) |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 1721 | input_forward(); |
Denys Vlasenko | 1302892 | 2009-07-12 00:51:15 +0200 | [diff] [blame] | 1722 | } |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 1723 | } |
| 1724 | |
"Vladimir N. Oleynik" | e4baaa2 | 2005-09-22 12:59:26 +0000 | [diff] [blame] | 1725 | static void |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 1726 | vi_End_motion(void) |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 1727 | { |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 1728 | CHAR_T *command = command_ps; |
| 1729 | |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 1730 | input_forward(); |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 1731 | while (cursor < command_len && BB_isspace(command[cursor])) |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 1732 | input_forward(); |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 1733 | while (cursor < command_len-1 && !BB_isspace(command[cursor+1])) |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 1734 | input_forward(); |
| 1735 | } |
| 1736 | |
"Vladimir N. Oleynik" | e4baaa2 | 2005-09-22 12:59:26 +0000 | [diff] [blame] | 1737 | static void |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 1738 | vi_end_motion(void) |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 1739 | { |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 1740 | CHAR_T *command = command_ps; |
| 1741 | |
Denis Vlasenko | 253ce00 | 2007-01-22 08:34:44 +0000 | [diff] [blame] | 1742 | if (cursor >= command_len-1) |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 1743 | return; |
| 1744 | input_forward(); |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 1745 | while (cursor < command_len-1 && BB_isspace(command[cursor])) |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 1746 | input_forward(); |
Denis Vlasenko | 253ce00 | 2007-01-22 08:34:44 +0000 | [diff] [blame] | 1747 | if (cursor >= command_len-1) |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 1748 | return; |
Natanael Copa | 7e6f931 | 2016-08-14 23:30:29 +0200 | [diff] [blame] | 1749 | if (BB_isalnum_or_underscore(command[cursor])) { |
Denis Vlasenko | 253ce00 | 2007-01-22 08:34:44 +0000 | [diff] [blame] | 1750 | while (cursor < command_len-1 |
Natanael Copa | 7e6f931 | 2016-08-14 23:30:29 +0200 | [diff] [blame] | 1751 | && (BB_isalnum_or_underscore(command[cursor+1])) |
Denis Vlasenko | 0a8a774 | 2006-12-21 22:27:10 +0000 | [diff] [blame] | 1752 | ) { |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 1753 | input_forward(); |
Denis Vlasenko | 0a8a774 | 2006-12-21 22:27:10 +0000 | [diff] [blame] | 1754 | } |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 1755 | } else if (BB_ispunct(command[cursor])) { |
| 1756 | while (cursor < command_len-1 && BB_ispunct(command[cursor+1])) |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 1757 | input_forward(); |
| 1758 | } |
| 1759 | } |
| 1760 | |
"Vladimir N. Oleynik" | e4baaa2 | 2005-09-22 12:59:26 +0000 | [diff] [blame] | 1761 | static void |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 1762 | vi_Back_motion(void) |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 1763 | { |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 1764 | CHAR_T *command = command_ps; |
| 1765 | |
| 1766 | while (cursor > 0 && BB_isspace(command[cursor-1])) |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 1767 | input_backward(1); |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 1768 | while (cursor > 0 && !BB_isspace(command[cursor-1])) |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 1769 | input_backward(1); |
| 1770 | } |
| 1771 | |
"Vladimir N. Oleynik" | e4baaa2 | 2005-09-22 12:59:26 +0000 | [diff] [blame] | 1772 | static void |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 1773 | vi_back_motion(void) |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 1774 | { |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 1775 | CHAR_T *command = command_ps; |
| 1776 | |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 1777 | if (cursor <= 0) |
| 1778 | return; |
| 1779 | input_backward(1); |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 1780 | while (cursor > 0 && BB_isspace(command[cursor])) |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 1781 | input_backward(1); |
| 1782 | if (cursor <= 0) |
| 1783 | return; |
Natanael Copa | 7e6f931 | 2016-08-14 23:30:29 +0200 | [diff] [blame] | 1784 | if (BB_isalnum_or_underscore(command[cursor])) { |
Denis Vlasenko | 0a8a774 | 2006-12-21 22:27:10 +0000 | [diff] [blame] | 1785 | while (cursor > 0 |
Natanael Copa | 7e6f931 | 2016-08-14 23:30:29 +0200 | [diff] [blame] | 1786 | && (BB_isalnum_or_underscore(command[cursor-1])) |
Denis Vlasenko | 0a8a774 | 2006-12-21 22:27:10 +0000 | [diff] [blame] | 1787 | ) { |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 1788 | input_backward(1); |
Denis Vlasenko | 0a8a774 | 2006-12-21 22:27:10 +0000 | [diff] [blame] | 1789 | } |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 1790 | } else if (BB_ispunct(command[cursor])) { |
| 1791 | while (cursor > 0 && BB_ispunct(command[cursor-1])) |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 1792 | input_backward(1); |
| 1793 | } |
| 1794 | } |
Denys Vlasenko | 627821e | 2021-09-25 19:36:35 +0200 | [diff] [blame] | 1795 | #endif /* ENABLE_FEATURE_EDITING_VI */ |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 1796 | |
Denys Vlasenko | a17eeb8 | 2009-10-25 23:50:56 +0100 | [diff] [blame] | 1797 | /* Modelled after bash 4.0 behavior of Ctrl-<arrow> */ |
| 1798 | static void ctrl_left(void) |
| 1799 | { |
| 1800 | CHAR_T *command = command_ps; |
| 1801 | |
| 1802 | while (1) { |
| 1803 | CHAR_T c; |
| 1804 | |
| 1805 | input_backward(1); |
| 1806 | if (cursor == 0) |
| 1807 | break; |
| 1808 | c = command[cursor]; |
| 1809 | if (c != ' ' && !BB_ispunct(c)) { |
| 1810 | /* we reached a "word" delimited by spaces/punct. |
| 1811 | * go to its beginning */ |
| 1812 | while (1) { |
| 1813 | c = command[cursor - 1]; |
| 1814 | if (c == ' ' || BB_ispunct(c)) |
| 1815 | break; |
| 1816 | input_backward(1); |
| 1817 | if (cursor == 0) |
| 1818 | break; |
| 1819 | } |
| 1820 | break; |
| 1821 | } |
| 1822 | } |
| 1823 | } |
| 1824 | static void ctrl_right(void) |
| 1825 | { |
| 1826 | CHAR_T *command = command_ps; |
| 1827 | |
| 1828 | while (1) { |
| 1829 | CHAR_T c; |
| 1830 | |
| 1831 | c = command[cursor]; |
| 1832 | if (c == BB_NUL) |
| 1833 | break; |
| 1834 | if (c != ' ' && !BB_ispunct(c)) { |
| 1835 | /* we reached a "word" delimited by spaces/punct. |
| 1836 | * go to its end + 1 */ |
| 1837 | while (1) { |
| 1838 | input_forward(); |
| 1839 | c = command[cursor]; |
| 1840 | if (c == BB_NUL || c == ' ' || BB_ispunct(c)) |
| 1841 | break; |
| 1842 | } |
| 1843 | break; |
| 1844 | } |
| 1845 | input_forward(); |
| 1846 | } |
| 1847 | } |
| 1848 | |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 1849 | |
| 1850 | /* |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 1851 | * read_line_input and its helpers |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 1852 | */ |
| 1853 | |
Denys Vlasenko | 13ad906 | 2009-11-11 03:19:30 +0100 | [diff] [blame] | 1854 | #if ENABLE_FEATURE_EDITING_ASK_TERMINAL |
| 1855 | static void ask_terminal(void) |
| 1856 | { |
| 1857 | /* Ask terminal where is the cursor now. |
| 1858 | * lineedit_read_key handles response and corrects |
| 1859 | * our idea of current cursor position. |
| 1860 | * Testcase: run "echo -n long_line_long_line_long_line", |
| 1861 | * then type in a long, wrapping command and try to |
| 1862 | * delete it using backspace key. |
| 1863 | * Note: we print it _after_ prompt, because |
| 1864 | * prompt may contain CR. Example: PS1='\[\r\n\]\w ' |
| 1865 | */ |
| 1866 | /* Problem: if there is buffered input on stdin, |
| 1867 | * the response will be delivered later, |
| 1868 | * possibly to an unsuspecting application. |
| 1869 | * Testcase: "sleep 1; busybox ash" + press and hold [Enter]. |
| 1870 | * Result: |
| 1871 | * ~/srcdevel/bbox/fix/busybox.t4 # |
| 1872 | * ~/srcdevel/bbox/fix/busybox.t4 # |
| 1873 | * ^[[59;34~/srcdevel/bbox/fix/busybox.t4 # <-- garbage |
| 1874 | * ~/srcdevel/bbox/fix/busybox.t4 # |
| 1875 | * |
| 1876 | * Checking for input with poll only makes the race narrower, |
| 1877 | * I still can trigger it. Strace: |
| 1878 | * |
| 1879 | * write(1, "~/srcdevel/bbox/fix/busybox.t4 # ", 33) = 33 |
| 1880 | * poll([{fd=0, events=POLLIN}], 1, 0) = 0 (Timeout) <-- no input exists |
| 1881 | * write(1, "\33[6n", 4) = 4 <-- send the ESC sequence, quick! |
Alexey Fomenko | 232ebaa | 2011-05-20 04:26:29 +0200 | [diff] [blame] | 1882 | * poll([{fd=0, events=POLLIN}], 1, -1) = 1 ([{fd=0, revents=POLLIN}]) |
Denys Vlasenko | 13ad906 | 2009-11-11 03:19:30 +0100 | [diff] [blame] | 1883 | * read(0, "\n", 1) = 1 <-- oh crap, user's input got in first |
| 1884 | */ |
Denys Vlasenko | 451add4 | 2010-07-25 00:06:41 +0200 | [diff] [blame] | 1885 | struct pollfd pfd; |
Denys Vlasenko | 13ad906 | 2009-11-11 03:19:30 +0100 | [diff] [blame] | 1886 | |
Denys Vlasenko | 451add4 | 2010-07-25 00:06:41 +0200 | [diff] [blame] | 1887 | pfd.fd = STDIN_FILENO; |
| 1888 | pfd.events = POLLIN; |
| 1889 | if (safe_poll(&pfd, 1, 0) == 0) { |
| 1890 | S.sent_ESC_br6n = 1; |
Ron Yorston | cad3fc7 | 2021-02-03 20:47:14 +0100 | [diff] [blame] | 1891 | fputs_stdout(ESC"[6n"); |
Denys Vlasenko | 451add4 | 2010-07-25 00:06:41 +0200 | [diff] [blame] | 1892 | fflush_all(); /* make terminal see it ASAP! */ |
Denys Vlasenko | 13ad906 | 2009-11-11 03:19:30 +0100 | [diff] [blame] | 1893 | } |
| 1894 | } |
| 1895 | #else |
Denys Vlasenko | 627821e | 2021-09-25 19:36:35 +0200 | [diff] [blame] | 1896 | # define ask_terminal() ((void)0) |
Denys Vlasenko | 13ad906 | 2009-11-11 03:19:30 +0100 | [diff] [blame] | 1897 | #endif |
| 1898 | |
Avi Halachmi | 0fd5dbb | 2017-10-12 16:38:35 +0200 | [diff] [blame] | 1899 | /* Note about multi-line PS1 (e.g. "\n\w \u@\h\n> ") and prompt redrawing: |
| 1900 | * |
| 1901 | * If the prompt has any newlines, after we print it once we use only its last |
| 1902 | * line to redraw in-place, which makes it simpler to calculate how many lines |
| 1903 | * we should move the cursor up to align the redraw (cmdedit_y). The earlier |
| 1904 | * prompt lines just stay on screen and we redraw below them. |
| 1905 | * |
| 1906 | * Use cases for all prompt lines beyond the initial draw: |
| 1907 | * - After clear-screen (^L) or after displaying tab-completion choices, we |
| 1908 | * print the full prompt, as it isn't redrawn in-place. |
| 1909 | * - During terminal resize we could try to redraw all lines, but we don't, |
| 1910 | * because it requires delicate alignment, it's good enough with only the |
| 1911 | * last line, and doing it wrong is arguably worse than not doing it at all. |
| 1912 | * |
| 1913 | * Terminology wise, if it doesn't mention "full", then it means the last/sole |
| 1914 | * prompt line. We use the prompt (last/sole line) while redrawing in-place, |
| 1915 | * and the full where we need a fresh one unrelated to an earlier position. |
| 1916 | * |
| 1917 | * If PS1 is not multiline, the last/sole line and the full are the same string. |
| 1918 | */ |
| 1919 | |
Denys Vlasenko | e66a56d | 2013-08-19 16:45:04 +0200 | [diff] [blame] | 1920 | /* Called just once at read_line_input() init time */ |
Denis Vlasenko | 38f6319 | 2007-01-22 09:03:07 +0000 | [diff] [blame] | 1921 | #if !ENABLE_FEATURE_EDITING_FANCY_PROMPT |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 1922 | static void parse_and_put_prompt(const char *prmt_ptr) |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 1923 | { |
Denys Vlasenko | e66a56d | 2013-08-19 16:45:04 +0200 | [diff] [blame] | 1924 | const char *p; |
Avi Halachmi | 0fd5dbb | 2017-10-12 16:38:35 +0200 | [diff] [blame] | 1925 | cmdedit_prompt = prompt_last_line = prmt_ptr; |
Denys Vlasenko | e66a56d | 2013-08-19 16:45:04 +0200 | [diff] [blame] | 1926 | p = strrchr(prmt_ptr, '\n'); |
Avi Halachmi | 0fd5dbb | 2017-10-12 16:38:35 +0200 | [diff] [blame] | 1927 | if (p) |
| 1928 | prompt_last_line = p + 1; |
| 1929 | cmdedit_prmt_len = unicode_strwidth(prompt_last_line); |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 1930 | put_prompt(); |
| 1931 | } |
| 1932 | #else |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 1933 | static void parse_and_put_prompt(const char *prmt_ptr) |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 1934 | { |
Denys Vlasenko | e66a56d | 2013-08-19 16:45:04 +0200 | [diff] [blame] | 1935 | int prmt_size = 0; |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 1936 | char *prmt_mem_ptr = xzalloc(1); |
Denys Vlasenko | 1d14569 | 2013-03-29 13:09:05 +0100 | [diff] [blame] | 1937 | char *cwd_buf = NULL; |
Denys Vlasenko | e66a56d | 2013-08-19 16:45:04 +0200 | [diff] [blame] | 1938 | char flg_not_length = '['; |
Denis Vlasenko | 7221c8c | 2007-12-03 10:45:14 +0000 | [diff] [blame] | 1939 | char cbuf[2]; |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 1940 | |
Denys Vlasenko | 7a18043 | 2013-08-19 16:44:05 +0200 | [diff] [blame] | 1941 | /*cmdedit_prmt_len = 0; - already is */ |
Denis Vlasenko | 6258fd3 | 2007-01-22 07:30:26 +0000 | [diff] [blame] | 1942 | |
Denis Vlasenko | 7221c8c | 2007-12-03 10:45:14 +0000 | [diff] [blame] | 1943 | cbuf[1] = '\0'; /* never changes */ |
| 1944 | |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 1945 | while (*prmt_ptr) { |
Denys Vlasenko | e66a56d | 2013-08-19 16:45:04 +0200 | [diff] [blame] | 1946 | char timebuf[sizeof("HH:MM:SS")]; |
Denis Vlasenko | 7221c8c | 2007-12-03 10:45:14 +0000 | [diff] [blame] | 1947 | char *free_me = NULL; |
Denys Vlasenko | e66a56d | 2013-08-19 16:45:04 +0200 | [diff] [blame] | 1948 | char *pbuf; |
| 1949 | char c; |
Denis Vlasenko | 7221c8c | 2007-12-03 10:45:14 +0000 | [diff] [blame] | 1950 | |
| 1951 | pbuf = cbuf; |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 1952 | c = *prmt_ptr++; |
| 1953 | if (c == '\\') { |
Denys Vlasenko | 1d14569 | 2013-03-29 13:09:05 +0100 | [diff] [blame] | 1954 | const char *cp; |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 1955 | int l; |
Denys Vlasenko | 6c852bf | 2013-03-28 13:20:12 +0100 | [diff] [blame] | 1956 | /* |
| 1957 | * Supported via bb_process_escape_sequence: |
| 1958 | * \a ASCII bell character (07) |
| 1959 | * \e ASCII escape character (033) |
| 1960 | * \n newline |
| 1961 | * \r carriage return |
| 1962 | * \\ backslash |
| 1963 | * \nnn char with octal code nnn |
| 1964 | * Supported: |
| 1965 | * \$ if the effective UID is 0, a #, otherwise a $ |
Denys Vlasenko | 6c852bf | 2013-03-28 13:20:12 +0100 | [diff] [blame] | 1966 | * \w current working directory, with $HOME abbreviated with a tilde |
| 1967 | * Note: we do not support $PROMPT_DIRTRIM=n feature |
Denys Vlasenko | 1d14569 | 2013-03-29 13:09:05 +0100 | [diff] [blame] | 1968 | * \W basename of the current working directory, with $HOME abbreviated with a tilde |
Denys Vlasenko | 6c852bf | 2013-03-28 13:20:12 +0100 | [diff] [blame] | 1969 | * \h hostname up to the first '.' |
| 1970 | * \H hostname |
| 1971 | * \u username |
| 1972 | * \[ begin a sequence of non-printing characters |
| 1973 | * \] end a sequence of non-printing characters |
Denys Vlasenko | 1d14569 | 2013-03-29 13:09:05 +0100 | [diff] [blame] | 1974 | * \T current time in 12-hour HH:MM:SS format |
| 1975 | * \@ current time in 12-hour am/pm format |
| 1976 | * \A current time in 24-hour HH:MM format |
| 1977 | * \t current time in 24-hour HH:MM:SS format |
| 1978 | * (all of the above work as \A) |
Denys Vlasenko | 6c852bf | 2013-03-28 13:20:12 +0100 | [diff] [blame] | 1979 | * Not supported: |
Denys Vlasenko | 1d14569 | 2013-03-29 13:09:05 +0100 | [diff] [blame] | 1980 | * \! history number of this command |
Denys Vlasenko | 6c852bf | 2013-03-28 13:20:12 +0100 | [diff] [blame] | 1981 | * \# command number of this command |
| 1982 | * \j number of jobs currently managed by the shell |
| 1983 | * \l basename of the shell's terminal device name |
| 1984 | * \s name of the shell, the basename of $0 (the portion following the final slash) |
| 1985 | * \V release of bash, version + patch level (e.g., 2.00.0) |
Denys Vlasenko | 6c852bf | 2013-03-28 13:20:12 +0100 | [diff] [blame] | 1986 | * \d date in "Weekday Month Date" format (e.g., "Tue May 26") |
| 1987 | * \D{format} |
| 1988 | * format is passed to strftime(3). |
| 1989 | * An empty format results in a locale-specific time representation. |
| 1990 | * The braces are required. |
Denys Vlasenko | 6c852bf | 2013-03-28 13:20:12 +0100 | [diff] [blame] | 1991 | * Mishandled by bb_process_escape_sequence: |
Denys Vlasenko | 6c852bf | 2013-03-28 13:20:12 +0100 | [diff] [blame] | 1992 | * \v version of bash (e.g., 2.00) |
| 1993 | */ |
Denys Vlasenko | 1d14569 | 2013-03-29 13:09:05 +0100 | [diff] [blame] | 1994 | cp = prmt_ptr; |
| 1995 | c = *cp; |
| 1996 | if (c != 't') /* don't treat \t as tab */ |
| 1997 | c = bb_process_escape_sequence(&prmt_ptr); |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 1998 | if (prmt_ptr == cp) { |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 1999 | if (*cp == '\0') |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2000 | break; |
| 2001 | c = *prmt_ptr++; |
Denis Vlasenko | 7221c8c | 2007-12-03 10:45:14 +0000 | [diff] [blame] | 2002 | |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2003 | switch (c) { |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2004 | case 'u': |
Denys Vlasenko | f4fcd74 | 2021-10-11 23:08:31 +0200 | [diff] [blame] | 2005 | pbuf = (char*)get_username_str(); |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2006 | break; |
Denys Vlasenko | 6c852bf | 2013-03-28 13:20:12 +0100 | [diff] [blame] | 2007 | case 'H': |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2008 | case 'h': |
Denis Vlasenko | 6f1713f | 2008-02-25 23:23:58 +0000 | [diff] [blame] | 2009 | pbuf = free_me = safe_gethostname(); |
Denys Vlasenko | 6c852bf | 2013-03-28 13:20:12 +0100 | [diff] [blame] | 2010 | if (c == 'h') |
| 2011 | strchrnul(pbuf, '.')[0] = '\0'; |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2012 | break; |
| 2013 | case '$': |
Denis Vlasenko | 5592fac | 2007-01-21 19:19:46 +0000 | [diff] [blame] | 2014 | c = (geteuid() == 0 ? '#' : '$'); |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2015 | break; |
Denys Vlasenko | 1d14569 | 2013-03-29 13:09:05 +0100 | [diff] [blame] | 2016 | case 'T': /* 12-hour HH:MM:SS format */ |
| 2017 | case '@': /* 12-hour am/pm format */ |
| 2018 | case 'A': /* 24-hour HH:MM format */ |
| 2019 | case 't': /* 24-hour HH:MM:SS format */ |
| 2020 | /* We show all of them as 24-hour HH:MM */ |
| 2021 | strftime_HHMMSS(timebuf, sizeof(timebuf), NULL)[-3] = '\0'; |
| 2022 | pbuf = timebuf; |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2023 | break; |
Denys Vlasenko | 1d14569 | 2013-03-29 13:09:05 +0100 | [diff] [blame] | 2024 | case 'w': /* current dir */ |
| 2025 | case 'W': /* basename of cur dir */ |
| 2026 | if (!cwd_buf) { |
Denys Vlasenko | f4fcd74 | 2021-10-11 23:08:31 +0200 | [diff] [blame] | 2027 | const char *home; |
Denys Vlasenko | 1d14569 | 2013-03-29 13:09:05 +0100 | [diff] [blame] | 2028 | cwd_buf = xrealloc_getcwd_or_warn(NULL); |
| 2029 | if (!cwd_buf) |
| 2030 | cwd_buf = (char *)bb_msg_unknown; |
Denys Vlasenko | f4fcd74 | 2021-10-11 23:08:31 +0200 | [diff] [blame] | 2031 | else if ((home = get_homedir_or_NULL()) != NULL && home[0]) { |
Denys Vlasenko | 8dff01d | 2015-03-12 17:48:34 +0100 | [diff] [blame] | 2032 | char *after_home_user; |
| 2033 | |
Denys Vlasenko | 1d14569 | 2013-03-29 13:09:05 +0100 | [diff] [blame] | 2034 | /* /home/user[/something] -> ~[/something] */ |
Denys Vlasenko | f4fcd74 | 2021-10-11 23:08:31 +0200 | [diff] [blame] | 2035 | after_home_user = is_prefixed_with(cwd_buf, home); |
Denys Vlasenko | 8dff01d | 2015-03-12 17:48:34 +0100 | [diff] [blame] | 2036 | if (after_home_user |
| 2037 | && (*after_home_user == '/' || *after_home_user == '\0') |
Denys Vlasenko | 1d14569 | 2013-03-29 13:09:05 +0100 | [diff] [blame] | 2038 | ) { |
| 2039 | cwd_buf[0] = '~'; |
Denys Vlasenko | 8dff01d | 2015-03-12 17:48:34 +0100 | [diff] [blame] | 2040 | overlapping_strcpy(cwd_buf + 1, after_home_user); |
Denys Vlasenko | 1d14569 | 2013-03-29 13:09:05 +0100 | [diff] [blame] | 2041 | } |
| 2042 | } |
| 2043 | } |
Denis Vlasenko | 7221c8c | 2007-12-03 10:45:14 +0000 | [diff] [blame] | 2044 | pbuf = cwd_buf; |
Denys Vlasenko | 1d14569 | 2013-03-29 13:09:05 +0100 | [diff] [blame] | 2045 | if (c == 'w') |
| 2046 | break; |
Denis Vlasenko | dc757aa | 2007-06-30 08:04:05 +0000 | [diff] [blame] | 2047 | cp = strrchr(pbuf, '/'); |
Denys Vlasenko | 8172d05 | 2013-03-29 13:21:53 +0100 | [diff] [blame] | 2048 | if (cp) |
Denys Vlasenko | 1d14569 | 2013-03-29 13:09:05 +0100 | [diff] [blame] | 2049 | pbuf = (char*)cp + 1; |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2050 | break; |
Denys Vlasenko | 6c852bf | 2013-03-28 13:20:12 +0100 | [diff] [blame] | 2051 | // bb_process_escape_sequence does this now: |
| 2052 | // case 'e': case 'E': /* \e \E = \033 */ |
| 2053 | // c = '\033'; |
| 2054 | // break; |
Denis Vlasenko | 7221c8c | 2007-12-03 10:45:14 +0000 | [diff] [blame] | 2055 | case 'x': case 'X': { |
| 2056 | char buf2[4]; |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2057 | for (l = 0; l < 3;) { |
Denis Vlasenko | 7221c8c | 2007-12-03 10:45:14 +0000 | [diff] [blame] | 2058 | unsigned h; |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2059 | buf2[l++] = *prmt_ptr; |
Denis Vlasenko | 7221c8c | 2007-12-03 10:45:14 +0000 | [diff] [blame] | 2060 | buf2[l] = '\0'; |
| 2061 | h = strtoul(buf2, &pbuf, 16); |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2062 | if (h > UCHAR_MAX || (pbuf - buf2) < l) { |
Denis Vlasenko | 7221c8c | 2007-12-03 10:45:14 +0000 | [diff] [blame] | 2063 | buf2[--l] = '\0'; |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2064 | break; |
| 2065 | } |
| 2066 | prmt_ptr++; |
| 2067 | } |
Denis Vlasenko | 7221c8c | 2007-12-03 10:45:14 +0000 | [diff] [blame] | 2068 | c = (char)strtoul(buf2, NULL, 16); |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2069 | if (c == 0) |
| 2070 | c = '?'; |
Denis Vlasenko | 7221c8c | 2007-12-03 10:45:14 +0000 | [diff] [blame] | 2071 | pbuf = cbuf; |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2072 | break; |
Denis Vlasenko | 7221c8c | 2007-12-03 10:45:14 +0000 | [diff] [blame] | 2073 | } |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2074 | case '[': case ']': |
| 2075 | if (c == flg_not_length) { |
Denys Vlasenko | 7a18043 | 2013-08-19 16:44:05 +0200 | [diff] [blame] | 2076 | /* Toggle '['/']' hex 5b/5d */ |
| 2077 | flg_not_length ^= 6; |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2078 | continue; |
| 2079 | } |
| 2080 | break; |
Denis Vlasenko | 7221c8c | 2007-12-03 10:45:14 +0000 | [diff] [blame] | 2081 | } /* switch */ |
| 2082 | } /* if */ |
| 2083 | } /* if */ |
| 2084 | cbuf[0] = c; |
Denys Vlasenko | e66a56d | 2013-08-19 16:45:04 +0200 | [diff] [blame] | 2085 | { |
| 2086 | int n = strlen(pbuf); |
| 2087 | prmt_size += n; |
| 2088 | if (c == '\n') |
| 2089 | cmdedit_prmt_len = 0; |
| 2090 | else if (flg_not_length != ']') { |
Denys Vlasenko | 627821e | 2021-09-25 19:36:35 +0200 | [diff] [blame] | 2091 | # if ENABLE_UNICODE_SUPPORT |
Audun-Marius Gangstø | 9bf4499 | 2020-11-21 12:26:39 +0100 | [diff] [blame] | 2092 | if (n == 1) { |
| 2093 | /* Only count single-byte characters and the first of multi-byte characters */ |
| 2094 | if ((unsigned char)*pbuf < 0x80 /* single byte character */ |
| 2095 | || (unsigned char)*pbuf >= 0xc0 /* first of multi-byte characters */ |
| 2096 | ) { |
| 2097 | cmdedit_prmt_len += n; |
| 2098 | } |
| 2099 | } else { |
| 2100 | cmdedit_prmt_len += unicode_strwidth(pbuf); |
| 2101 | } |
Denys Vlasenko | 627821e | 2021-09-25 19:36:35 +0200 | [diff] [blame] | 2102 | # else |
Denys Vlasenko | e66a56d | 2013-08-19 16:45:04 +0200 | [diff] [blame] | 2103 | cmdedit_prmt_len += n; |
Denys Vlasenko | 627821e | 2021-09-25 19:36:35 +0200 | [diff] [blame] | 2104 | # endif |
Denys Vlasenko | e66a56d | 2013-08-19 16:45:04 +0200 | [diff] [blame] | 2105 | } |
Denys Vlasenko | 7a18043 | 2013-08-19 16:44:05 +0200 | [diff] [blame] | 2106 | } |
Denys Vlasenko | e66a56d | 2013-08-19 16:45:04 +0200 | [diff] [blame] | 2107 | prmt_mem_ptr = strcat(xrealloc(prmt_mem_ptr, prmt_size+1), pbuf); |
Denis Vlasenko | 7221c8c | 2007-12-03 10:45:14 +0000 | [diff] [blame] | 2108 | free(free_me); |
| 2109 | } /* while */ |
| 2110 | |
| 2111 | if (cwd_buf != (char *)bb_msg_unknown) |
| 2112 | free(cwd_buf); |
Avi Halachmi | 0fd5dbb | 2017-10-12 16:38:35 +0200 | [diff] [blame] | 2113 | /* see comment (above this function) about multiline prompt redrawing */ |
| 2114 | cmdedit_prompt = prompt_last_line = prmt_mem_ptr; |
| 2115 | prmt_ptr = strrchr(cmdedit_prompt, '\n'); |
| 2116 | if (prmt_ptr) |
| 2117 | prompt_last_line = prmt_ptr + 1; |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2118 | put_prompt(); |
| 2119 | } |
Denys Vlasenko | a97a795 | 2020-12-16 11:14:08 +0100 | [diff] [blame] | 2120 | #endif /* FEATURE_EDITING_FANCY_PROMPT */ |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 2121 | |
Ron Yorston | 2328690 | 2018-02-25 20:09:54 +0100 | [diff] [blame] | 2122 | #if ENABLE_FEATURE_EDITING_WINCH |
Denys Vlasenko | 038a977 | 2016-11-28 01:10:16 +0100 | [diff] [blame] | 2123 | static void cmdedit_setwidth(void) |
Denis Vlasenko | 5592fac | 2007-01-21 19:19:46 +0000 | [diff] [blame] | 2124 | { |
Denys Vlasenko | 038a977 | 2016-11-28 01:10:16 +0100 | [diff] [blame] | 2125 | int new_y; |
| 2126 | |
| 2127 | cmdedit_termw = get_terminal_width(STDIN_FILENO); |
| 2128 | /* new y for current cursor */ |
| 2129 | new_y = (cursor + cmdedit_prmt_len) / cmdedit_termw; |
| 2130 | /* redraw */ |
| 2131 | redraw((new_y >= cmdedit_y ? new_y : cmdedit_y), command_len - cursor); |
Denis Vlasenko | 5592fac | 2007-01-21 19:19:46 +0000 | [diff] [blame] | 2132 | } |
| 2133 | |
Denys Vlasenko | bff71d3 | 2016-11-27 22:25:07 +0100 | [diff] [blame] | 2134 | static void win_changed(int nsig UNUSED_PARAM) |
Denis Vlasenko | 5592fac | 2007-01-21 19:19:46 +0000 | [diff] [blame] | 2135 | { |
Denys Vlasenko | bff71d3 | 2016-11-27 22:25:07 +0100 | [diff] [blame] | 2136 | if (S.ok_to_redraw) { |
| 2137 | /* We are in read_key(), safe to redraw immediately */ |
| 2138 | int sv_errno = errno; |
Denys Vlasenko | 038a977 | 2016-11-28 01:10:16 +0100 | [diff] [blame] | 2139 | cmdedit_setwidth(); |
| 2140 | fflush_all(); |
Denys Vlasenko | bff71d3 | 2016-11-27 22:25:07 +0100 | [diff] [blame] | 2141 | errno = sv_errno; |
| 2142 | } else { |
| 2143 | /* Signal main loop that redraw is necessary */ |
| 2144 | S.SIGWINCH_count++; |
| 2145 | } |
Denis Vlasenko | 5592fac | 2007-01-21 19:19:46 +0000 | [diff] [blame] | 2146 | } |
Ron Yorston | 2328690 | 2018-02-25 20:09:54 +0100 | [diff] [blame] | 2147 | #endif |
Denis Vlasenko | 5592fac | 2007-01-21 19:19:46 +0000 | [diff] [blame] | 2148 | |
Denys Vlasenko | 66c5b12 | 2011-02-08 05:07:02 +0100 | [diff] [blame] | 2149 | static int lineedit_read_key(char *read_key_buffer, int timeout) |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2150 | { |
Denys Vlasenko | 020f406 | 2009-05-17 16:44:54 +0200 | [diff] [blame] | 2151 | int64_t ic; |
Denys Vlasenko | 19158a8 | 2010-03-26 14:06:56 +0100 | [diff] [blame] | 2152 | #if ENABLE_UNICODE_SUPPORT |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 2153 | char unicode_buf[MB_CUR_MAX + 1]; |
| 2154 | int unicode_idx = 0; |
| 2155 | #endif |
Denys Vlasenko | 020f406 | 2009-05-17 16:44:54 +0200 | [diff] [blame] | 2156 | |
Denys Vlasenko | 038a977 | 2016-11-28 01:10:16 +0100 | [diff] [blame] | 2157 | fflush_all(); |
Denys Vlasenko | 1e825ac | 2022-01-18 00:31:27 +0100 | [diff] [blame] | 2158 | for (;;) { |
Denys Vlasenko | 58f108e | 2010-03-11 21:17:55 +0100 | [diff] [blame] | 2159 | /* Wait for input. TIMEOUT = -1 makes read_key wait even |
| 2160 | * on nonblocking stdin, TIMEOUT = 50 makes sure we won't |
| 2161 | * insist on full MB_CUR_MAX buffer to declare input like |
| 2162 | * "\xff\n",pause,"ls\n" invalid and thus won't lose "ls". |
| 2163 | * |
Denys Vlasenko | 12566e7 | 2022-01-17 03:02:40 +0100 | [diff] [blame] | 2164 | * If LI_INTERRUPTIBLE, return -1 if got EINTR in poll() |
| 2165 | * inside read_key, or if bb_got_signal != 0 (IOW: if signal |
| 2166 | * arrived before poll() is reached). |
| 2167 | * |
Denys Vlasenko | 58f108e | 2010-03-11 21:17:55 +0100 | [diff] [blame] | 2168 | * Note: read_key sets errno to 0 on success. |
| 2169 | */ |
Denys Vlasenko | 1e825ac | 2022-01-18 00:31:27 +0100 | [diff] [blame] | 2170 | for (;;) { |
Denys Vlasenko | 12566e7 | 2022-01-17 03:02:40 +0100 | [diff] [blame] | 2171 | if ((state->flags & LI_INTERRUPTIBLE) && bb_got_signal) { |
| 2172 | errno = EINTR; |
| 2173 | return -1; |
| 2174 | } |
| 2175 | //FIXME: still races here with signals, but small window to poll() inside read_key |
| 2176 | IF_FEATURE_EDITING_WINCH(S.ok_to_redraw = 1;) |
Denys Vlasenko | 1e825ac | 2022-01-18 00:31:27 +0100 | [diff] [blame] | 2177 | /* errno = 0; - read_key does this itself */ |
Denys Vlasenko | 12566e7 | 2022-01-17 03:02:40 +0100 | [diff] [blame] | 2178 | ic = read_key(STDIN_FILENO, read_key_buffer, timeout); |
| 2179 | IF_FEATURE_EDITING_WINCH(S.ok_to_redraw = 0;) |
Denys Vlasenko | 1e825ac | 2022-01-18 00:31:27 +0100 | [diff] [blame] | 2180 | if (errno != EINTR) |
| 2181 | break; |
| 2182 | if (state->flags & LI_INTERRUPTIBLE) { |
| 2183 | /* LI_INTERRUPTIBLE bails out on EINTR, |
| 2184 | * but nothing really guarantees that bb_got_signal |
| 2185 | * is nonzero. Follow the least surprise principle: |
| 2186 | */ |
| 2187 | if (bb_got_signal == 0) |
| 2188 | bb_got_signal = 255; |
| 2189 | goto ret; |
| 2190 | } |
| 2191 | } |
Denys Vlasenko | 12566e7 | 2022-01-17 03:02:40 +0100 | [diff] [blame] | 2192 | |
Denys Vlasenko | 58f108e | 2010-03-11 21:17:55 +0100 | [diff] [blame] | 2193 | if (errno) { |
Denys Vlasenko | 19158a8 | 2010-03-26 14:06:56 +0100 | [diff] [blame] | 2194 | #if ENABLE_UNICODE_SUPPORT |
Denys Vlasenko | 58f108e | 2010-03-11 21:17:55 +0100 | [diff] [blame] | 2195 | if (errno == EAGAIN && unicode_idx != 0) |
| 2196 | goto pushback; |
Denys Vlasenko | 1f6d230 | 2009-10-29 03:45:26 +0100 | [diff] [blame] | 2197 | #endif |
Denys Vlasenko | 58f108e | 2010-03-11 21:17:55 +0100 | [diff] [blame] | 2198 | break; |
Denys Vlasenko | 4b7db4f | 2009-05-29 10:39:06 +0200 | [diff] [blame] | 2199 | } |
Denys Vlasenko | 04bb6b6 | 2009-10-14 12:53:04 +0200 | [diff] [blame] | 2200 | |
Denys Vlasenko | eb62d7c | 2009-10-27 10:34:06 +0100 | [diff] [blame] | 2201 | #if ENABLE_FEATURE_EDITING_ASK_TERMINAL |
| 2202 | if ((int32_t)ic == KEYCODE_CURSOR_POS |
Denys Vlasenko | d83bbf4 | 2009-10-27 10:47:49 +0100 | [diff] [blame] | 2203 | && S.sent_ESC_br6n |
Denys Vlasenko | 020f406 | 2009-05-17 16:44:54 +0200 | [diff] [blame] | 2204 | ) { |
Denys Vlasenko | d83bbf4 | 2009-10-27 10:47:49 +0100 | [diff] [blame] | 2205 | S.sent_ESC_br6n = 0; |
Denys Vlasenko | eb62d7c | 2009-10-27 10:34:06 +0100 | [diff] [blame] | 2206 | if (cursor == 0) { /* otherwise it may be bogus */ |
| 2207 | int col = ((ic >> 32) & 0x7fff) - 1; |
Denys Vlasenko | 7a18043 | 2013-08-19 16:44:05 +0200 | [diff] [blame] | 2208 | /* |
| 2209 | * Is col > cmdedit_prmt_len? |
| 2210 | * If yes (terminal says cursor is farther to the right |
| 2211 | * of where we think it should be), |
| 2212 | * the prompt wasn't printed starting at col 1, |
| 2213 | * there was additional text before it. |
| 2214 | */ |
| 2215 | if ((int)(col - cmdedit_prmt_len) > 0) { |
| 2216 | /* Fix our understanding of current x position */ |
Denys Vlasenko | eb62d7c | 2009-10-27 10:34:06 +0100 | [diff] [blame] | 2217 | cmdedit_x += (col - cmdedit_prmt_len); |
| 2218 | while (cmdedit_x >= cmdedit_termw) { |
| 2219 | cmdedit_x -= cmdedit_termw; |
| 2220 | cmdedit_y++; |
| 2221 | } |
Denys Vlasenko | 020f406 | 2009-05-17 16:44:54 +0200 | [diff] [blame] | 2222 | } |
| 2223 | } |
Denys Vlasenko | 58f108e | 2010-03-11 21:17:55 +0100 | [diff] [blame] | 2224 | continue; |
Denys Vlasenko | 020f406 | 2009-05-17 16:44:54 +0200 | [diff] [blame] | 2225 | } |
Denys Vlasenko | eb62d7c | 2009-10-27 10:34:06 +0100 | [diff] [blame] | 2226 | #endif |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 2227 | |
Denys Vlasenko | 19158a8 | 2010-03-26 14:06:56 +0100 | [diff] [blame] | 2228 | #if ENABLE_UNICODE_SUPPORT |
Tomas Heinrich | d2b0405 | 2010-03-09 14:09:24 +0100 | [diff] [blame] | 2229 | if (unicode_status == UNICODE_ON) { |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 2230 | wchar_t wc; |
| 2231 | |
| 2232 | if ((int32_t)ic < 0) /* KEYCODE_xxx */ |
Denys Vlasenko | 58f108e | 2010-03-11 21:17:55 +0100 | [diff] [blame] | 2233 | break; |
| 2234 | // TODO: imagine sequence like: 0xff,<left-arrow>: we are currently losing 0xff... |
Tomas Heinrich | d2b0405 | 2010-03-09 14:09:24 +0100 | [diff] [blame] | 2235 | |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 2236 | unicode_buf[unicode_idx++] = ic; |
| 2237 | unicode_buf[unicode_idx] = '\0'; |
Tomas Heinrich | d2b0405 | 2010-03-09 14:09:24 +0100 | [diff] [blame] | 2238 | if (mbstowcs(&wc, unicode_buf, 1) != 1) { |
| 2239 | /* Not (yet?) a valid unicode char */ |
| 2240 | if (unicode_idx < MB_CUR_MAX) { |
Denys Vlasenko | 58f108e | 2010-03-11 21:17:55 +0100 | [diff] [blame] | 2241 | timeout = 50; |
| 2242 | continue; |
Tomas Heinrich | d2b0405 | 2010-03-09 14:09:24 +0100 | [diff] [blame] | 2243 | } |
Denys Vlasenko | 58f108e | 2010-03-11 21:17:55 +0100 | [diff] [blame] | 2244 | pushback: |
Tomas Heinrich | d2b0405 | 2010-03-09 14:09:24 +0100 | [diff] [blame] | 2245 | /* Invalid sequence. Save all "bad bytes" except first */ |
Denys Vlasenko | 58f108e | 2010-03-11 21:17:55 +0100 | [diff] [blame] | 2246 | read_key_ungets(read_key_buffer, unicode_buf + 1, unicode_idx - 1); |
Tomas Heinrich | a659b81 | 2010-04-29 13:43:39 +0200 | [diff] [blame] | 2247 | # if !ENABLE_UNICODE_PRESERVE_BROKEN |
Tomas Heinrich | d2b0405 | 2010-03-09 14:09:24 +0100 | [diff] [blame] | 2248 | ic = CONFIG_SUBST_WCHAR; |
Tomas Heinrich | a659b81 | 2010-04-29 13:43:39 +0200 | [diff] [blame] | 2249 | # else |
Tomas Heinrich | b8909c5 | 2010-05-16 20:46:53 +0200 | [diff] [blame] | 2250 | ic = unicode_mark_raw_byte(unicode_buf[0]); |
Tomas Heinrich | a659b81 | 2010-04-29 13:43:39 +0200 | [diff] [blame] | 2251 | # endif |
Tomas Heinrich | d2b0405 | 2010-03-09 14:09:24 +0100 | [diff] [blame] | 2252 | } else { |
| 2253 | /* Valid unicode char, return its code */ |
| 2254 | ic = wc; |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 2255 | } |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 2256 | } |
| 2257 | #endif |
Denys Vlasenko | 58f108e | 2010-03-11 21:17:55 +0100 | [diff] [blame] | 2258 | break; |
| 2259 | } |
Denys Vlasenko | 1e825ac | 2022-01-18 00:31:27 +0100 | [diff] [blame] | 2260 | ret: |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2261 | return ic; |
| 2262 | } |
| 2263 | |
Tomas Heinrich | c5c006c | 2010-03-18 18:35:37 +0100 | [diff] [blame] | 2264 | #if ENABLE_UNICODE_BIDI_SUPPORT |
| 2265 | static int isrtl_str(void) |
| 2266 | { |
| 2267 | int idx = cursor; |
Tomas Heinrich | aa16755 | 2010-03-26 13:13:24 +0100 | [diff] [blame] | 2268 | |
| 2269 | while (idx < command_len && unicode_bidi_is_neutral_wchar(command_ps[idx])) |
Tomas Heinrich | c5c006c | 2010-03-18 18:35:37 +0100 | [diff] [blame] | 2270 | idx++; |
Tomas Heinrich | aa16755 | 2010-03-26 13:13:24 +0100 | [diff] [blame] | 2271 | return unicode_bidi_isrtl(command_ps[idx]); |
Tomas Heinrich | c5c006c | 2010-03-18 18:35:37 +0100 | [diff] [blame] | 2272 | } |
| 2273 | #else |
| 2274 | # define isrtl_str() 0 |
| 2275 | #endif |
| 2276 | |
Paul Fox | 0f2dd9f | 2006-03-07 20:26:11 +0000 | [diff] [blame] | 2277 | /* leave out the "vi-mode"-only case labels if vi editing isn't |
| 2278 | * configured. */ |
Denys Vlasenko | 1302892 | 2009-07-12 00:51:15 +0200 | [diff] [blame] | 2279 | #define vi_case(caselabel) IF_FEATURE_EDITING_VI(case caselabel) |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 2280 | |
| 2281 | /* convert uppercase ascii to equivalent control char, for readability */ |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2282 | #undef CTRL |
| 2283 | #define CTRL(a) ((a) & ~0x40) |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 2284 | |
Denys Vlasenko | a669eca | 2011-07-11 07:36:59 +0200 | [diff] [blame] | 2285 | enum { |
| 2286 | VI_CMDMODE_BIT = 0x40000000, |
| 2287 | /* 0x80000000 bit flags KEYCODE_xxx */ |
| 2288 | }; |
| 2289 | |
| 2290 | #if ENABLE_FEATURE_REVERSE_SEARCH |
| 2291 | /* Mimic readline Ctrl-R reverse history search. |
| 2292 | * When invoked, it shows the following prompt: |
| 2293 | * (reverse-i-search)'': user_input [cursor pos unchanged by Ctrl-R] |
| 2294 | * and typing results in search being performed: |
| 2295 | * (reverse-i-search)'tmp': cd /tmp [cursor under t in /tmp] |
| 2296 | * Search is performed by looking at progressively older lines in history. |
| 2297 | * Ctrl-R again searches for the next match in history. |
| 2298 | * Backspace deletes last matched char. |
| 2299 | * Control keys exit search and return to normal editing (at current history line). |
| 2300 | */ |
Denys Vlasenko | 84ea60e | 2017-08-02 17:27:28 +0200 | [diff] [blame] | 2301 | static int32_t reverse_i_search(int timeout) |
Denys Vlasenko | a669eca | 2011-07-11 07:36:59 +0200 | [diff] [blame] | 2302 | { |
| 2303 | char match_buf[128]; /* for user input */ |
| 2304 | char read_key_buffer[KEYCODE_BUFFER_SIZE]; |
| 2305 | const char *matched_history_line; |
| 2306 | const char *saved_prompt; |
Denys Vlasenko | 7a18043 | 2013-08-19 16:44:05 +0200 | [diff] [blame] | 2307 | unsigned saved_prmt_len; |
Denys Vlasenko | a669eca | 2011-07-11 07:36:59 +0200 | [diff] [blame] | 2308 | int32_t ic; |
| 2309 | |
| 2310 | matched_history_line = NULL; |
| 2311 | read_key_buffer[0] = 0; |
| 2312 | match_buf[0] = '\0'; |
| 2313 | |
| 2314 | /* Save and replace the prompt */ |
Avi Halachmi | 0fd5dbb | 2017-10-12 16:38:35 +0200 | [diff] [blame] | 2315 | saved_prompt = prompt_last_line; |
Denys Vlasenko | 7a18043 | 2013-08-19 16:44:05 +0200 | [diff] [blame] | 2316 | saved_prmt_len = cmdedit_prmt_len; |
Denys Vlasenko | a669eca | 2011-07-11 07:36:59 +0200 | [diff] [blame] | 2317 | goto set_prompt; |
| 2318 | |
| 2319 | while (1) { |
| 2320 | int h; |
| 2321 | unsigned match_buf_len = strlen(match_buf); |
| 2322 | |
Denys Vlasenko | 84ea60e | 2017-08-02 17:27:28 +0200 | [diff] [blame] | 2323 | //FIXME: correct timeout? (i.e. count it down?) |
| 2324 | ic = lineedit_read_key(read_key_buffer, timeout); |
Denys Vlasenko | a669eca | 2011-07-11 07:36:59 +0200 | [diff] [blame] | 2325 | |
| 2326 | switch (ic) { |
| 2327 | case CTRL('R'): /* searching for the next match */ |
| 2328 | break; |
| 2329 | |
| 2330 | case '\b': |
| 2331 | case '\x7f': |
| 2332 | /* Backspace */ |
| 2333 | if (unicode_status == UNICODE_ON) { |
| 2334 | while (match_buf_len != 0) { |
| 2335 | uint8_t c = match_buf[--match_buf_len]; |
| 2336 | if ((c & 0xc0) != 0x80) /* start of UTF-8 char? */ |
| 2337 | break; /* yes */ |
| 2338 | } |
| 2339 | } else { |
| 2340 | if (match_buf_len != 0) |
| 2341 | match_buf_len--; |
| 2342 | } |
| 2343 | match_buf[match_buf_len] = '\0'; |
| 2344 | break; |
| 2345 | |
| 2346 | default: |
| 2347 | if (ic < ' ' |
| 2348 | || (!ENABLE_UNICODE_SUPPORT && ic >= 256) |
| 2349 | || (ENABLE_UNICODE_SUPPORT && ic >= VI_CMDMODE_BIT) |
| 2350 | ) { |
| 2351 | goto ret; |
| 2352 | } |
| 2353 | |
| 2354 | /* Append this char */ |
Denys Vlasenko | 627821e | 2021-09-25 19:36:35 +0200 | [diff] [blame] | 2355 | # if ENABLE_UNICODE_SUPPORT |
Denys Vlasenko | a669eca | 2011-07-11 07:36:59 +0200 | [diff] [blame] | 2356 | if (unicode_status == UNICODE_ON) { |
| 2357 | mbstate_t mbstate = { 0 }; |
| 2358 | char buf[MB_CUR_MAX + 1]; |
| 2359 | int len = wcrtomb(buf, ic, &mbstate); |
| 2360 | if (len > 0) { |
| 2361 | buf[len] = '\0'; |
| 2362 | if (match_buf_len + len < sizeof(match_buf)) |
| 2363 | strcpy(match_buf + match_buf_len, buf); |
| 2364 | } |
| 2365 | } else |
Denys Vlasenko | 627821e | 2021-09-25 19:36:35 +0200 | [diff] [blame] | 2366 | # endif |
Denys Vlasenko | a669eca | 2011-07-11 07:36:59 +0200 | [diff] [blame] | 2367 | if (match_buf_len < sizeof(match_buf) - 1) { |
| 2368 | match_buf[match_buf_len] = ic; |
| 2369 | match_buf[match_buf_len + 1] = '\0'; |
| 2370 | } |
| 2371 | break; |
| 2372 | } /* switch (ic) */ |
| 2373 | |
| 2374 | /* Search in history for match_buf */ |
| 2375 | h = state->cur_history; |
| 2376 | if (ic == CTRL('R')) |
| 2377 | h--; |
| 2378 | while (h >= 0) { |
| 2379 | if (state->history[h]) { |
| 2380 | char *match = strstr(state->history[h], match_buf); |
| 2381 | if (match) { |
| 2382 | state->cur_history = h; |
| 2383 | matched_history_line = state->history[h]; |
| 2384 | command_len = load_string(matched_history_line); |
| 2385 | cursor = match - matched_history_line; |
| 2386 | //FIXME: cursor position for Unicode case |
| 2387 | |
Avi Halachmi | 0fd5dbb | 2017-10-12 16:38:35 +0200 | [diff] [blame] | 2388 | free((char*)prompt_last_line); |
Denys Vlasenko | a669eca | 2011-07-11 07:36:59 +0200 | [diff] [blame] | 2389 | set_prompt: |
Avi Halachmi | 0fd5dbb | 2017-10-12 16:38:35 +0200 | [diff] [blame] | 2390 | prompt_last_line = xasprintf("(reverse-i-search)'%s': ", match_buf); |
| 2391 | cmdedit_prmt_len = unicode_strwidth(prompt_last_line); |
Denys Vlasenko | a669eca | 2011-07-11 07:36:59 +0200 | [diff] [blame] | 2392 | goto do_redraw; |
| 2393 | } |
| 2394 | } |
| 2395 | h--; |
| 2396 | } |
| 2397 | |
| 2398 | /* Not found */ |
| 2399 | match_buf[match_buf_len] = '\0'; |
| 2400 | beep(); |
| 2401 | continue; |
| 2402 | |
| 2403 | do_redraw: |
| 2404 | redraw(cmdedit_y, command_len - cursor); |
| 2405 | } /* while (1) */ |
| 2406 | |
| 2407 | ret: |
| 2408 | if (matched_history_line) |
| 2409 | command_len = load_string(matched_history_line); |
| 2410 | |
Avi Halachmi | 0fd5dbb | 2017-10-12 16:38:35 +0200 | [diff] [blame] | 2411 | free((char*)prompt_last_line); |
| 2412 | prompt_last_line = saved_prompt; |
Denys Vlasenko | 7a18043 | 2013-08-19 16:44:05 +0200 | [diff] [blame] | 2413 | cmdedit_prmt_len = saved_prmt_len; |
Denys Vlasenko | a669eca | 2011-07-11 07:36:59 +0200 | [diff] [blame] | 2414 | redraw(cmdedit_y, command_len - cursor); |
| 2415 | |
| 2416 | return ic; |
| 2417 | } |
Denys Vlasenko | 627821e | 2021-09-25 19:36:35 +0200 | [diff] [blame] | 2418 | #endif /* ENABLE_FEATURE_REVERSE_SEARCH */ |
Denys Vlasenko | a669eca | 2011-07-11 07:36:59 +0200 | [diff] [blame] | 2419 | |
Denys Vlasenko | 23427a6 | 2018-12-08 15:45:46 +0100 | [diff] [blame] | 2420 | #if ENABLE_FEATURE_EDITING_WINCH |
Denys Vlasenko | 136fe9b | 2018-12-08 13:49:15 +0100 | [diff] [blame] | 2421 | static void sigaction2(int sig, struct sigaction *act) |
| 2422 | { |
| 2423 | // Grr... gcc 8.1.1: |
| 2424 | // "passing argument 3 to restrict-qualified parameter aliases with argument 2" |
| 2425 | // dance around that... |
| 2426 | struct sigaction *oact FIX_ALIASING; |
| 2427 | oact = act; |
| 2428 | sigaction(sig, act, oact); |
| 2429 | } |
Denys Vlasenko | 23427a6 | 2018-12-08 15:45:46 +0100 | [diff] [blame] | 2430 | #endif |
Denys Vlasenko | 136fe9b | 2018-12-08 13:49:15 +0100 | [diff] [blame] | 2431 | |
Denys Vlasenko | 5c2e81b | 2009-07-16 14:14:34 +0200 | [diff] [blame] | 2432 | /* maxsize must be >= 2. |
| 2433 | * Returns: |
Denis Vlasenko | 80667e3 | 2008-02-02 18:35:55 +0000 | [diff] [blame] | 2434 | * -1 on read errors or EOF, or on bare Ctrl-D, |
| 2435 | * 0 on ctrl-C (the line entered is still returned in 'command'), |
Denys Vlasenko | 4b89d51 | 2016-11-25 03:41:03 +0100 | [diff] [blame] | 2436 | * (in both cases the cursor remains on the input line, '\n' is not printed) |
Denis Vlasenko | 6a5377a | 2007-09-25 18:35:28 +0000 | [diff] [blame] | 2437 | * >0 length of input string, including terminating '\n' |
| 2438 | */ |
Denys Vlasenko | 84ea60e | 2017-08-02 17:27:28 +0200 | [diff] [blame] | 2439 | int FAST_FUNC read_line_input(line_input_t *st, const char *prompt, char *command, int maxsize) |
Erik Andersen | 13456d1 | 2000-03-16 08:09:57 +0000 | [diff] [blame] | 2440 | { |
Denys Vlasenko | aaaaaa5 | 2017-09-15 17:14:01 +0200 | [diff] [blame] | 2441 | int len, n; |
Denys Vlasenko | 84ea60e | 2017-08-02 17:27:28 +0200 | [diff] [blame] | 2442 | int timeout; |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 2443 | #if ENABLE_FEATURE_TAB_COMPLETION |
Denys Vlasenko | 57ea9b4 | 2010-09-03 12:51:36 +0200 | [diff] [blame] | 2444 | smallint lastWasTab = 0; |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 2445 | #endif |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2446 | smallint break_out = 0; |
Denis Vlasenko | 38f6319 | 2007-01-22 09:03:07 +0000 | [diff] [blame] | 2447 | #if ENABLE_FEATURE_EDITING_VI |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2448 | smallint vi_cmdmode = 0; |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 2449 | #endif |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 2450 | struct termios initial_settings; |
| 2451 | struct termios new_settings; |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2452 | char read_key_buffer[KEYCODE_BUFFER_SIZE]; |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 2453 | |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 2454 | INIT_S(); |
Denys Vlasenko | 96717d9 | 2020-12-21 22:50:23 +0100 | [diff] [blame] | 2455 | //command_len = 0; - done by INIT_S() |
| 2456 | //cmdedit_y = 0; /* quasireal y, not true if line > xt*yt */ |
| 2457 | cmdedit_termw = 80; |
Denys Vlasenko | 96717d9 | 2020-12-21 22:50:23 +0100 | [diff] [blame] | 2458 | IF_FEATURE_EDITING_VI(delptr = delbuf;) |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 2459 | |
Denys Vlasenko | aaaaaa5 | 2017-09-15 17:14:01 +0200 | [diff] [blame] | 2460 | n = get_termios_and_make_raw(STDIN_FILENO, &new_settings, &initial_settings, 0 |
| 2461 | | TERMIOS_CLEAR_ISIG /* turn off INTR (ctrl-C), QUIT, SUSP */ |
| 2462 | ); |
| 2463 | if (n != 0 || (initial_settings.c_lflag & (ECHO|ICANON)) == ICANON) { |
Denys Vlasenko | d598a8d | 2014-12-10 17:22:13 +0100 | [diff] [blame] | 2464 | /* Happens when e.g. stty -echo was run before. |
| 2465 | * But if ICANON is not set, we don't come here. |
| 2466 | * (example: interactive python ^Z-backgrounded, |
| 2467 | * tty is still in "raw mode"). |
| 2468 | */ |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 2469 | parse_and_put_prompt(prompt); |
Denys Vlasenko | 038a977 | 2016-11-28 01:10:16 +0100 | [diff] [blame] | 2470 | fflush_all(); |
Denis Vlasenko | 9cb220b | 2007-12-09 10:03:28 +0000 | [diff] [blame] | 2471 | if (fgets(command, maxsize, stdin) == NULL) |
| 2472 | len = -1; /* EOF or error */ |
| 2473 | else |
| 2474 | len = strlen(command); |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 2475 | DEINIT_S(); |
| 2476 | return len; |
Denis Vlasenko | 037576d | 2007-10-20 18:30:38 +0000 | [diff] [blame] | 2477 | } |
| 2478 | |
Denys Vlasenko | 2805502 | 2010-01-04 20:49:58 +0100 | [diff] [blame] | 2479 | init_unicode(); |
Denys Vlasenko | 42a8fd0 | 2009-07-11 21:36:13 +0200 | [diff] [blame] | 2480 | |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 2481 | // FIXME: audit & improve this |
Denis Vlasenko | e8a0788 | 2007-06-10 15:08:44 +0000 | [diff] [blame] | 2482 | if (maxsize > MAX_LINELEN) |
| 2483 | maxsize = MAX_LINELEN; |
Denys Vlasenko | 044b180 | 2009-07-12 02:50:35 +0200 | [diff] [blame] | 2484 | S.maxsize = maxsize; |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 2485 | |
Denys Vlasenko | 84ea60e | 2017-08-02 17:27:28 +0200 | [diff] [blame] | 2486 | timeout = -1; |
| 2487 | /* Make state->flags == 0 if st is NULL. |
| 2488 | * With zeroed flags, no other fields are ever referenced. |
| 2489 | */ |
| 2490 | state = (line_input_t*) &const_int_0; |
| 2491 | if (st) { |
| 2492 | state = st; |
| 2493 | timeout = st->timeout; |
| 2494 | } |
Denys Vlasenko | db9c57e | 2009-09-27 02:48:53 +0200 | [diff] [blame] | 2495 | #if MAX_HISTORY > 0 |
Denys Vlasenko | 779f96a | 2019-02-04 16:16:30 +0100 | [diff] [blame] | 2496 | if (state->flags & DO_HISTORY) { |
Denys Vlasenko | db9c57e | 2009-09-27 02:48:53 +0200 | [diff] [blame] | 2497 | # if ENABLE_FEATURE_EDITING_SAVEHISTORY |
Denys Vlasenko | 779f96a | 2019-02-04 16:16:30 +0100 | [diff] [blame] | 2498 | if (state->hist_file) |
| 2499 | if (state->cnt_history == 0) |
| 2500 | load_history(state); |
Denys Vlasenko | db9c57e | 2009-09-27 02:48:53 +0200 | [diff] [blame] | 2501 | # endif |
Denis Vlasenko | 3c385cd | 2008-11-02 00:41:05 +0000 | [diff] [blame] | 2502 | state->cur_history = state->cnt_history; |
Denys Vlasenko | 779f96a | 2019-02-04 16:16:30 +0100 | [diff] [blame] | 2503 | } |
Denys Vlasenko | db9c57e | 2009-09-27 02:48:53 +0200 | [diff] [blame] | 2504 | #endif |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 2505 | |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 2506 | /* prepare before init handlers */ |
Denys Vlasenko | 19158a8 | 2010-03-26 14:06:56 +0100 | [diff] [blame] | 2507 | #if ENABLE_UNICODE_SUPPORT |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 2508 | command_ps = xzalloc(maxsize * sizeof(command_ps[0])); |
| 2509 | #else |
Mark Whitley | 4e33875 | 2001-01-26 20:42:23 +0000 | [diff] [blame] | 2510 | command_ps = command; |
Denis Vlasenko | 47bdb3a | 2007-01-21 19:18:59 +0000 | [diff] [blame] | 2511 | command[0] = '\0'; |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 2512 | #endif |
| 2513 | #define command command_must_not_be_used |
Mark Whitley | 4e33875 | 2001-01-26 20:42:23 +0000 | [diff] [blame] | 2514 | |
Denis Vlasenko | 202ac50 | 2008-11-05 13:20:58 +0000 | [diff] [blame] | 2515 | tcsetattr_stdin_TCSANOW(&new_settings); |
Erik Andersen | 13456d1 | 2000-03-16 08:09:57 +0000 | [diff] [blame] | 2516 | |
Denis Vlasenko | 682ad30 | 2008-09-27 01:28:56 +0000 | [diff] [blame] | 2517 | #if 0 |
Denys Vlasenko | 2c4de5b | 2011-03-31 13:16:52 +0200 | [diff] [blame] | 2518 | for (i = 0; i <= state->max_history; i++) |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 2519 | bb_error_msg("history[%d]:'%s'", i, state->history[i]); |
Denis Vlasenko | 682ad30 | 2008-09-27 01:28:56 +0000 | [diff] [blame] | 2520 | bb_error_msg("cur_history:%d cnt_history:%d", state->cur_history, state->cnt_history); |
| 2521 | #endif |
| 2522 | |
Denys Vlasenko | 0a67722 | 2017-11-08 13:38:12 +0100 | [diff] [blame] | 2523 | /* Get width (before printing prompt) */ |
| 2524 | cmdedit_termw = get_terminal_width(STDIN_FILENO); |
Denys Vlasenko | 13ad906 | 2009-11-11 03:19:30 +0100 | [diff] [blame] | 2525 | /* Print out the command prompt, optionally ask where cursor is */ |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 2526 | parse_and_put_prompt(prompt); |
Denys Vlasenko | 13ad906 | 2009-11-11 03:19:30 +0100 | [diff] [blame] | 2527 | ask_terminal(); |
Eric Andersen | b3dc3b8 | 2001-01-04 11:08:45 +0000 | [diff] [blame] | 2528 | |
Ron Yorston | 2328690 | 2018-02-25 20:09:54 +0100 | [diff] [blame] | 2529 | #if ENABLE_FEATURE_EDITING_WINCH |
Alexey Fomenko | 232ebaa | 2011-05-20 04:26:29 +0200 | [diff] [blame] | 2530 | /* Install window resize handler (NB: after *all* init is complete) */ |
Denys Vlasenko | bff71d3 | 2016-11-27 22:25:07 +0100 | [diff] [blame] | 2531 | S.SIGWINCH_handler.sa_handler = win_changed; |
| 2532 | S.SIGWINCH_handler.sa_flags = SA_RESTART; |
Denys Vlasenko | 136fe9b | 2018-12-08 13:49:15 +0100 | [diff] [blame] | 2533 | sigaction2(SIGWINCH, &S.SIGWINCH_handler); |
Ron Yorston | 2328690 | 2018-02-25 20:09:54 +0100 | [diff] [blame] | 2534 | #endif |
Denys Vlasenko | c396fe6 | 2009-05-17 19:28:14 +0200 | [diff] [blame] | 2535 | read_key_buffer[0] = 0; |
Erik Andersen | c7c634b | 2000-03-19 05:28:55 +0000 | [diff] [blame] | 2536 | while (1) { |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 2537 | /* |
| 2538 | * The emacs and vi modes share much of the code in the big |
| 2539 | * command loop. Commands entered when in vi's command mode |
| 2540 | * (aka "escape mode") get an extra bit added to distinguish |
| 2541 | * them - this keeps them from being self-inserted. This |
| 2542 | * clutters the big switch a bit, but keeps all the code |
| 2543 | * in one place. |
| 2544 | */ |
Denys Vlasenko | 04bb6b6 | 2009-10-14 12:53:04 +0200 | [diff] [blame] | 2545 | int32_t ic, ic_raw; |
Ron Yorston | 2328690 | 2018-02-25 20:09:54 +0100 | [diff] [blame] | 2546 | #if ENABLE_FEATURE_EDITING_WINCH |
Denys Vlasenko | bff71d3 | 2016-11-27 22:25:07 +0100 | [diff] [blame] | 2547 | unsigned count; |
| 2548 | |
| 2549 | count = S.SIGWINCH_count; |
| 2550 | if (S.SIGWINCH_saved != count) { |
| 2551 | S.SIGWINCH_saved = count; |
Denys Vlasenko | 038a977 | 2016-11-28 01:10:16 +0100 | [diff] [blame] | 2552 | cmdedit_setwidth(); |
Denys Vlasenko | bff71d3 | 2016-11-27 22:25:07 +0100 | [diff] [blame] | 2553 | } |
Ron Yorston | 2328690 | 2018-02-25 20:09:54 +0100 | [diff] [blame] | 2554 | #endif |
Denys Vlasenko | 66c5b12 | 2011-02-08 05:07:02 +0100 | [diff] [blame] | 2555 | ic = ic_raw = lineedit_read_key(read_key_buffer, timeout); |
Paul Fox | 0f2dd9f | 2006-03-07 20:26:11 +0000 | [diff] [blame] | 2556 | |
Denys Vlasenko | a669eca | 2011-07-11 07:36:59 +0200 | [diff] [blame] | 2557 | #if ENABLE_FEATURE_REVERSE_SEARCH |
| 2558 | again: |
| 2559 | #endif |
Denis Vlasenko | 38f6319 | 2007-01-22 09:03:07 +0000 | [diff] [blame] | 2560 | #if ENABLE_FEATURE_EDITING_VI |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 2561 | newdelflag = 1; |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2562 | if (vi_cmdmode) { |
| 2563 | /* btw, since KEYCODE_xxx are all < 0, this doesn't |
| 2564 | * change ic if it contains one of them: */ |
| 2565 | ic |= VI_CMDMODE_BIT; |
| 2566 | } |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 2567 | #endif |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2568 | |
Denis Vlasenko | 0a8a774 | 2006-12-21 22:27:10 +0000 | [diff] [blame] | 2569 | switch (ic) { |
Erik Andersen | f0657d3 | 2000-04-12 17:49:52 +0000 | [diff] [blame] | 2570 | case '\n': |
| 2571 | case '\r': |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2572 | vi_case('\n'|VI_CMDMODE_BIT:) |
| 2573 | vi_case('\r'|VI_CMDMODE_BIT:) |
Erik Andersen | f0657d3 | 2000-04-12 17:49:52 +0000 | [diff] [blame] | 2574 | /* Enter */ |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 2575 | goto_new_line(); |
Erik Andersen | f0657d3 | 2000-04-12 17:49:52 +0000 | [diff] [blame] | 2576 | break_out = 1; |
| 2577 | break; |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2578 | case CTRL('A'): |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2579 | vi_case('0'|VI_CMDMODE_BIT:) |
Erik Andersen | c7c634b | 2000-03-19 05:28:55 +0000 | [diff] [blame] | 2580 | /* Control-a -- Beginning of line */ |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 2581 | input_backward(cursor); |
Mark Whitley | 4e33875 | 2001-01-26 20:42:23 +0000 | [diff] [blame] | 2582 | break; |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2583 | case CTRL('B'): |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2584 | vi_case('h'|VI_CMDMODE_BIT:) |
Tomas Heinrich | c5c006c | 2010-03-18 18:35:37 +0100 | [diff] [blame] | 2585 | vi_case('\b'|VI_CMDMODE_BIT:) /* ^H */ |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2586 | vi_case('\x7f'|VI_CMDMODE_BIT:) /* DEL */ |
Tomas Heinrich | c5c006c | 2010-03-18 18:35:37 +0100 | [diff] [blame] | 2587 | input_backward(1); /* Move back one character */ |
Erik Andersen | f0657d3 | 2000-04-12 17:49:52 +0000 | [diff] [blame] | 2588 | break; |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2589 | case CTRL('E'): |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2590 | vi_case('$'|VI_CMDMODE_BIT:) |
Erik Andersen | c7c634b | 2000-03-19 05:28:55 +0000 | [diff] [blame] | 2591 | /* Control-e -- End of line */ |
Denys Vlasenko | 94043e8 | 2010-05-11 14:49:13 +0200 | [diff] [blame] | 2592 | put_till_end_and_adv_cursor(); |
Erik Andersen | c7c634b | 2000-03-19 05:28:55 +0000 | [diff] [blame] | 2593 | break; |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2594 | case CTRL('F'): |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2595 | vi_case('l'|VI_CMDMODE_BIT:) |
| 2596 | vi_case(' '|VI_CMDMODE_BIT:) |
Tomas Heinrich | c5c006c | 2010-03-18 18:35:37 +0100 | [diff] [blame] | 2597 | input_forward(); /* Move forward one character */ |
Erik Andersen | c7c634b | 2000-03-19 05:28:55 +0000 | [diff] [blame] | 2598 | break; |
Tomas Heinrich | c5c006c | 2010-03-18 18:35:37 +0100 | [diff] [blame] | 2599 | case '\b': /* ^H */ |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2600 | case '\x7f': /* DEL */ |
Tomas Heinrich | c5c006c | 2010-03-18 18:35:37 +0100 | [diff] [blame] | 2601 | if (!isrtl_str()) |
| 2602 | input_backspace(); |
| 2603 | else |
| 2604 | input_delete(0); |
| 2605 | break; |
| 2606 | case KEYCODE_DELETE: |
| 2607 | if (!isrtl_str()) |
| 2608 | input_delete(0); |
| 2609 | else |
| 2610 | input_backspace(); |
Erik Andersen | c7c634b | 2000-03-19 05:28:55 +0000 | [diff] [blame] | 2611 | break; |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 2612 | #if ENABLE_FEATURE_TAB_COMPLETION |
Erik Andersen | c7c634b | 2000-03-19 05:28:55 +0000 | [diff] [blame] | 2613 | case '\t': |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 2614 | input_tab(&lastWasTab); |
Erik Andersen | c7c634b | 2000-03-19 05:28:55 +0000 | [diff] [blame] | 2615 | break; |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 2616 | #endif |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2617 | case CTRL('K'): |
Eric Andersen | c470f44 | 2003-07-28 09:56:35 +0000 | [diff] [blame] | 2618 | /* Control-k -- clear to end of line */ |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 2619 | command_ps[cursor] = BB_NUL; |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 2620 | command_len = cursor; |
Denys Vlasenko | 94043e8 | 2010-05-11 14:49:13 +0200 | [diff] [blame] | 2621 | printf(SEQ_CLEAR_TILL_END_OF_SCREEN); |
Eric Andersen | 65a0730 | 2002-04-13 13:26:49 +0000 | [diff] [blame] | 2622 | break; |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2623 | case CTRL('L'): |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2624 | vi_case(CTRL('L')|VI_CMDMODE_BIT:) |
Eric Andersen | 27bb790 | 2003-12-23 20:24:51 +0000 | [diff] [blame] | 2625 | /* Control-l -- clear screen */ |
Avi Halachmi | 0fd5dbb | 2017-10-12 16:38:35 +0200 | [diff] [blame] | 2626 | /* cursor to top,left; clear to the end of screen */ |
| 2627 | printf(ESC"[H" ESC"[J"); |
| 2628 | draw_full(command_len - cursor); |
Eric Andersen | f1f2bd0 | 2001-12-21 11:20:15 +0000 | [diff] [blame] | 2629 | break; |
Denis Vlasenko | 9d4533e | 2006-11-02 22:09:37 +0000 | [diff] [blame] | 2630 | #if MAX_HISTORY > 0 |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2631 | case CTRL('N'): |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2632 | vi_case(CTRL('N')|VI_CMDMODE_BIT:) |
| 2633 | vi_case('j'|VI_CMDMODE_BIT:) |
Erik Andersen | f0657d3 | 2000-04-12 17:49:52 +0000 | [diff] [blame] | 2634 | /* Control-n -- Get next command in history */ |
Glenn L McGrath | 062c74f | 2002-11-27 09:29:49 +0000 | [diff] [blame] | 2635 | if (get_next_history()) |
Erik Andersen | f0657d3 | 2000-04-12 17:49:52 +0000 | [diff] [blame] | 2636 | goto rewrite_line; |
Erik Andersen | f0657d3 | 2000-04-12 17:49:52 +0000 | [diff] [blame] | 2637 | break; |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2638 | case CTRL('P'): |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2639 | vi_case(CTRL('P')|VI_CMDMODE_BIT:) |
| 2640 | vi_case('k'|VI_CMDMODE_BIT:) |
Erik Andersen | f0657d3 | 2000-04-12 17:49:52 +0000 | [diff] [blame] | 2641 | /* Control-p -- Get previous command from history */ |
Denis Vlasenko | 682ad30 | 2008-09-27 01:28:56 +0000 | [diff] [blame] | 2642 | if (get_previous_history()) |
Erik Andersen | f0657d3 | 2000-04-12 17:49:52 +0000 | [diff] [blame] | 2643 | goto rewrite_line; |
Erik Andersen | c7c634b | 2000-03-19 05:28:55 +0000 | [diff] [blame] | 2644 | break; |
Glenn L McGrath | 062c74f | 2002-11-27 09:29:49 +0000 | [diff] [blame] | 2645 | #endif |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2646 | case CTRL('U'): |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2647 | vi_case(CTRL('U')|VI_CMDMODE_BIT:) |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 2648 | /* Control-U -- Clear line before cursor */ |
| 2649 | if (cursor) { |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 2650 | command_len -= cursor; |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 2651 | memmove(command_ps, command_ps + cursor, |
| 2652 | (command_len + 1) * sizeof(command_ps[0])); |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 2653 | redraw(cmdedit_y, command_len); |
Erik Andersen | c7c634b | 2000-03-19 05:28:55 +0000 | [diff] [blame] | 2654 | } |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 2655 | break; |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2656 | case CTRL('W'): |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2657 | vi_case(CTRL('W')|VI_CMDMODE_BIT:) |
Eric Andersen | 27bb790 | 2003-12-23 20:24:51 +0000 | [diff] [blame] | 2658 | /* Control-W -- Remove the last word */ |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 2659 | while (cursor > 0 && BB_isspace(command_ps[cursor-1])) |
Eric Andersen | 27bb790 | 2003-12-23 20:24:51 +0000 | [diff] [blame] | 2660 | input_backspace(); |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 2661 | while (cursor > 0 && !BB_isspace(command_ps[cursor-1])) |
Eric Andersen | 27bb790 | 2003-12-23 20:24:51 +0000 | [diff] [blame] | 2662 | input_backspace(); |
| 2663 | break; |
Rostislav Skudnov | 2e4ef38 | 2016-11-24 15:04:00 +0100 | [diff] [blame] | 2664 | case KEYCODE_ALT_D: { |
| 2665 | /* Delete word forward */ |
| 2666 | int nc, sc = cursor; |
| 2667 | ctrl_right(); |
| 2668 | nc = cursor - sc; |
| 2669 | input_backward(nc); |
| 2670 | while (--nc >= 0) |
| 2671 | input_delete(1); |
| 2672 | break; |
| 2673 | } |
| 2674 | case KEYCODE_ALT_BACKSPACE: { |
| 2675 | /* Delete word backward */ |
| 2676 | int sc = cursor; |
| 2677 | ctrl_left(); |
| 2678 | while (sc-- > cursor) |
| 2679 | input_delete(1); |
| 2680 | break; |
| 2681 | } |
Denys Vlasenko | a669eca | 2011-07-11 07:36:59 +0200 | [diff] [blame] | 2682 | #if ENABLE_FEATURE_REVERSE_SEARCH |
| 2683 | case CTRL('R'): |
Denys Vlasenko | 84ea60e | 2017-08-02 17:27:28 +0200 | [diff] [blame] | 2684 | ic = ic_raw = reverse_i_search(timeout); |
Denys Vlasenko | a669eca | 2011-07-11 07:36:59 +0200 | [diff] [blame] | 2685 | goto again; |
| 2686 | #endif |
Denis Vlasenko | 00cdbd8 | 2007-01-21 19:21:21 +0000 | [diff] [blame] | 2687 | |
Denis Vlasenko | 38f6319 | 2007-01-22 09:03:07 +0000 | [diff] [blame] | 2688 | #if ENABLE_FEATURE_EDITING_VI |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2689 | case 'i'|VI_CMDMODE_BIT: |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 2690 | vi_cmdmode = 0; |
| 2691 | break; |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2692 | case 'I'|VI_CMDMODE_BIT: |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 2693 | input_backward(cursor); |
| 2694 | vi_cmdmode = 0; |
| 2695 | break; |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2696 | case 'a'|VI_CMDMODE_BIT: |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 2697 | input_forward(); |
| 2698 | vi_cmdmode = 0; |
| 2699 | break; |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2700 | case 'A'|VI_CMDMODE_BIT: |
Denys Vlasenko | 94043e8 | 2010-05-11 14:49:13 +0200 | [diff] [blame] | 2701 | put_till_end_and_adv_cursor(); |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 2702 | vi_cmdmode = 0; |
| 2703 | break; |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2704 | case 'x'|VI_CMDMODE_BIT: |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 2705 | input_delete(1); |
| 2706 | break; |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2707 | case 'X'|VI_CMDMODE_BIT: |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 2708 | if (cursor > 0) { |
| 2709 | input_backward(1); |
| 2710 | input_delete(1); |
| 2711 | } |
| 2712 | break; |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2713 | case 'W'|VI_CMDMODE_BIT: |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 2714 | vi_Word_motion(1); |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 2715 | break; |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2716 | case 'w'|VI_CMDMODE_BIT: |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 2717 | vi_word_motion(1); |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 2718 | break; |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2719 | case 'E'|VI_CMDMODE_BIT: |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 2720 | vi_End_motion(); |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 2721 | break; |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2722 | case 'e'|VI_CMDMODE_BIT: |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 2723 | vi_end_motion(); |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 2724 | break; |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2725 | case 'B'|VI_CMDMODE_BIT: |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 2726 | vi_Back_motion(); |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 2727 | break; |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2728 | case 'b'|VI_CMDMODE_BIT: |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 2729 | vi_back_motion(); |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 2730 | break; |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2731 | case 'C'|VI_CMDMODE_BIT: |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 2732 | vi_cmdmode = 0; |
| 2733 | /* fall through */ |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2734 | case 'D'|VI_CMDMODE_BIT: |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 2735 | goto clear_to_eol; |
| 2736 | |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2737 | case 'c'|VI_CMDMODE_BIT: |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 2738 | vi_cmdmode = 0; |
| 2739 | /* fall through */ |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2740 | case 'd'|VI_CMDMODE_BIT: { |
Denis Vlasenko | 0a8a774 | 2006-12-21 22:27:10 +0000 | [diff] [blame] | 2741 | int nc, sc; |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2742 | |
Denys Vlasenko | 66c5b12 | 2011-02-08 05:07:02 +0100 | [diff] [blame] | 2743 | ic = lineedit_read_key(read_key_buffer, timeout); |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2744 | if (errno) /* error */ |
Denys Vlasenko | d55f599 | 2010-09-07 18:40:53 +0200 | [diff] [blame] | 2745 | goto return_error_indicator; |
Denys Vlasenko | 04bb6b6 | 2009-10-14 12:53:04 +0200 | [diff] [blame] | 2746 | if (ic == ic_raw) { /* "cc", "dd" */ |
Denis Vlasenko | 0a8a774 | 2006-12-21 22:27:10 +0000 | [diff] [blame] | 2747 | input_backward(cursor); |
| 2748 | goto clear_to_eol; |
| 2749 | break; |
| 2750 | } |
Denys Vlasenko | 04bb6b6 | 2009-10-14 12:53:04 +0200 | [diff] [blame] | 2751 | |
| 2752 | sc = cursor; |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2753 | switch (ic) { |
Denis Vlasenko | 0a8a774 | 2006-12-21 22:27:10 +0000 | [diff] [blame] | 2754 | case 'w': |
| 2755 | case 'W': |
| 2756 | case 'e': |
| 2757 | case 'E': |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2758 | switch (ic) { |
Denis Vlasenko | 0a8a774 | 2006-12-21 22:27:10 +0000 | [diff] [blame] | 2759 | case 'w': /* "dw", "cw" */ |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 2760 | vi_word_motion(vi_cmdmode); |
Denis Vlasenko | 9275814 | 2006-10-03 19:56:34 +0000 | [diff] [blame] | 2761 | break; |
Denis Vlasenko | 0a8a774 | 2006-12-21 22:27:10 +0000 | [diff] [blame] | 2762 | case 'W': /* 'dW', 'cW' */ |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 2763 | vi_Word_motion(vi_cmdmode); |
Denis Vlasenko | 9275814 | 2006-10-03 19:56:34 +0000 | [diff] [blame] | 2764 | break; |
Denis Vlasenko | 0a8a774 | 2006-12-21 22:27:10 +0000 | [diff] [blame] | 2765 | case 'e': /* 'de', 'ce' */ |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 2766 | vi_end_motion(); |
Denis Vlasenko | 0a8a774 | 2006-12-21 22:27:10 +0000 | [diff] [blame] | 2767 | input_forward(); |
Denis Vlasenko | 9275814 | 2006-10-03 19:56:34 +0000 | [diff] [blame] | 2768 | break; |
Denis Vlasenko | 0a8a774 | 2006-12-21 22:27:10 +0000 | [diff] [blame] | 2769 | case 'E': /* 'dE', 'cE' */ |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 2770 | vi_End_motion(); |
Denis Vlasenko | 0a8a774 | 2006-12-21 22:27:10 +0000 | [diff] [blame] | 2771 | input_forward(); |
Denis Vlasenko | 9275814 | 2006-10-03 19:56:34 +0000 | [diff] [blame] | 2772 | break; |
| 2773 | } |
Denis Vlasenko | 0a8a774 | 2006-12-21 22:27:10 +0000 | [diff] [blame] | 2774 | nc = cursor; |
| 2775 | input_backward(cursor - sc); |
| 2776 | while (nc-- > cursor) |
| 2777 | input_delete(1); |
| 2778 | break; |
| 2779 | case 'b': /* "db", "cb" */ |
| 2780 | case 'B': /* implemented as B */ |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2781 | if (ic == 'b') |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 2782 | vi_back_motion(); |
Denis Vlasenko | 0a8a774 | 2006-12-21 22:27:10 +0000 | [diff] [blame] | 2783 | else |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 2784 | vi_Back_motion(); |
Denis Vlasenko | 0a8a774 | 2006-12-21 22:27:10 +0000 | [diff] [blame] | 2785 | while (sc-- > cursor) |
| 2786 | input_delete(1); |
| 2787 | break; |
| 2788 | case ' ': /* "d ", "c " */ |
| 2789 | input_delete(1); |
| 2790 | break; |
| 2791 | case '$': /* "d$", "c$" */ |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2792 | clear_to_eol: |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 2793 | while (cursor < command_len) |
Denis Vlasenko | 0a8a774 | 2006-12-21 22:27:10 +0000 | [diff] [blame] | 2794 | input_delete(1); |
| 2795 | break; |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 2796 | } |
| 2797 | break; |
Denis Vlasenko | 0a8a774 | 2006-12-21 22:27:10 +0000 | [diff] [blame] | 2798 | } |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2799 | case 'p'|VI_CMDMODE_BIT: |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 2800 | input_forward(); |
| 2801 | /* fallthrough */ |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2802 | case 'P'|VI_CMDMODE_BIT: |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 2803 | put(); |
| 2804 | break; |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2805 | case 'r'|VI_CMDMODE_BIT: |
Denys Vlasenko | 04bb6b6 | 2009-10-14 12:53:04 +0200 | [diff] [blame] | 2806 | //FIXME: unicode case? |
Denys Vlasenko | 66c5b12 | 2011-02-08 05:07:02 +0100 | [diff] [blame] | 2807 | ic = lineedit_read_key(read_key_buffer, timeout); |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2808 | if (errno) /* error */ |
Denys Vlasenko | d55f599 | 2010-09-07 18:40:53 +0200 | [diff] [blame] | 2809 | goto return_error_indicator; |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2810 | if (ic < ' ' || ic > 255) { |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 2811 | beep(); |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2812 | } else { |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 2813 | command_ps[cursor] = ic; |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2814 | bb_putchar(ic); |
Denis Vlasenko | 4daad90 | 2007-09-27 10:20:47 +0000 | [diff] [blame] | 2815 | bb_putchar('\b'); |
Paul Fox | 3f11b1b | 2005-08-04 19:04:46 +0000 | [diff] [blame] | 2816 | } |
| 2817 | break; |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2818 | case '\x1b': /* ESC */ |
| 2819 | if (state->flags & VI_MODE) { |
| 2820 | /* insert mode --> command mode */ |
| 2821 | vi_cmdmode = 1; |
| 2822 | input_backward(1); |
| 2823 | } |
| 2824 | break; |
Denis Vlasenko | 7f1dc21 | 2006-12-19 01:10:25 +0000 | [diff] [blame] | 2825 | #endif /* FEATURE_COMMAND_EDITING_VI */ |
Paul Fox | 0f2dd9f | 2006-03-07 20:26:11 +0000 | [diff] [blame] | 2826 | |
Denis Vlasenko | 9d4533e | 2006-11-02 22:09:37 +0000 | [diff] [blame] | 2827 | #if MAX_HISTORY > 0 |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2828 | case KEYCODE_UP: |
| 2829 | if (get_previous_history()) |
| 2830 | goto rewrite_line; |
| 2831 | beep(); |
| 2832 | break; |
| 2833 | case KEYCODE_DOWN: |
| 2834 | if (!get_next_history()) |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 2835 | break; |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2836 | rewrite_line: |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2837 | /* Rewrite the line with the selected history item */ |
| 2838 | /* change command */ |
Denys Vlasenko | 90a9904 | 2009-09-06 02:36:23 +0200 | [diff] [blame] | 2839 | command_len = load_string(state->history[state->cur_history] ? |
Denys Vlasenko | a669eca | 2011-07-11 07:36:59 +0200 | [diff] [blame] | 2840 | state->history[state->cur_history] : ""); |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2841 | /* redraw and go to eol (bol, in vi) */ |
| 2842 | redraw(cmdedit_y, (state->flags & VI_MODE) ? 9999 : 0); |
| 2843 | break; |
Glenn L McGrath | 062c74f | 2002-11-27 09:29:49 +0000 | [diff] [blame] | 2844 | #endif |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2845 | case KEYCODE_RIGHT: |
| 2846 | input_forward(); |
| 2847 | break; |
| 2848 | case KEYCODE_LEFT: |
| 2849 | input_backward(1); |
| 2850 | break; |
Denys Vlasenko | a17eeb8 | 2009-10-25 23:50:56 +0100 | [diff] [blame] | 2851 | case KEYCODE_CTRL_LEFT: |
Denys Vlasenko | 9ce09bc | 2011-11-03 13:28:22 +0100 | [diff] [blame] | 2852 | case KEYCODE_ALT_LEFT: /* bash doesn't do it */ |
Denys Vlasenko | a17eeb8 | 2009-10-25 23:50:56 +0100 | [diff] [blame] | 2853 | ctrl_left(); |
| 2854 | break; |
| 2855 | case KEYCODE_CTRL_RIGHT: |
Denys Vlasenko | 9ce09bc | 2011-11-03 13:28:22 +0100 | [diff] [blame] | 2856 | case KEYCODE_ALT_RIGHT: /* bash doesn't do it */ |
Denys Vlasenko | a17eeb8 | 2009-10-25 23:50:56 +0100 | [diff] [blame] | 2857 | ctrl_right(); |
| 2858 | break; |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2859 | case KEYCODE_HOME: |
| 2860 | input_backward(cursor); |
| 2861 | break; |
| 2862 | case KEYCODE_END: |
Denys Vlasenko | 94043e8 | 2010-05-11 14:49:13 +0200 | [diff] [blame] | 2863 | put_till_end_and_adv_cursor(); |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 2864 | break; |
Erik Andersen | c7c634b | 2000-03-19 05:28:55 +0000 | [diff] [blame] | 2865 | |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2866 | default: |
Denys Vlasenko | 04bb6b6 | 2009-10-14 12:53:04 +0200 | [diff] [blame] | 2867 | if (initial_settings.c_cc[VINTR] != 0 |
| 2868 | && ic_raw == initial_settings.c_cc[VINTR] |
| 2869 | ) { |
| 2870 | /* Ctrl-C (usually) - stop gathering input */ |
Denys Vlasenko | 04bb6b6 | 2009-10-14 12:53:04 +0200 | [diff] [blame] | 2871 | command_len = 0; |
| 2872 | break_out = -1; /* "do not append '\n'" */ |
| 2873 | break; |
| 2874 | } |
| 2875 | if (initial_settings.c_cc[VEOF] != 0 |
| 2876 | && ic_raw == initial_settings.c_cc[VEOF] |
| 2877 | ) { |
| 2878 | /* Ctrl-D (usually) - delete one character, |
| 2879 | * or exit if len=0 and no chars to delete */ |
| 2880 | if (command_len == 0) { |
| 2881 | errno = 0; |
Denys Vlasenko | d55f599 | 2010-09-07 18:40:53 +0200 | [diff] [blame] | 2882 | |
| 2883 | case -1: /* error (e.g. EIO when tty is destroyed) */ |
| 2884 | IF_FEATURE_EDITING_VI(return_error_indicator:) |
Denys Vlasenko | 04bb6b6 | 2009-10-14 12:53:04 +0200 | [diff] [blame] | 2885 | break_out = command_len = -1; |
| 2886 | break; |
| 2887 | } |
| 2888 | input_delete(0); |
| 2889 | break; |
| 2890 | } |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2891 | // /* Control-V -- force insert of next char */ |
| 2892 | // if (c == CTRL('V')) { |
| 2893 | // if (safe_read(STDIN_FILENO, &c, 1) < 1) |
Denys Vlasenko | d55f599 | 2010-09-07 18:40:53 +0200 | [diff] [blame] | 2894 | // goto return_error_indicator; |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2895 | // if (c == 0) { |
| 2896 | // beep(); |
| 2897 | // break; |
| 2898 | // } |
| 2899 | // } |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 2900 | if (ic < ' ' |
Denys Vlasenko | 19158a8 | 2010-03-26 14:06:56 +0100 | [diff] [blame] | 2901 | || (!ENABLE_UNICODE_SUPPORT && ic >= 256) |
| 2902 | || (ENABLE_UNICODE_SUPPORT && ic >= VI_CMDMODE_BIT) |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 2903 | ) { |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2904 | /* If VI_CMDMODE_BIT is set, ic is >= 256 |
Denys Vlasenko | 04bb6b6 | 2009-10-14 12:53:04 +0200 | [diff] [blame] | 2905 | * and vi mode ignores unexpected chars. |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2906 | * Otherwise, we are here if ic is a |
| 2907 | * control char or an unhandled ESC sequence, |
| 2908 | * which is also ignored. |
| 2909 | */ |
| 2910 | break; |
| 2911 | } |
| 2912 | if ((int)command_len >= (maxsize - 2)) { |
| 2913 | /* Not enough space for the char and EOL */ |
| 2914 | break; |
Paul Fox | 84bbac5 | 2008-01-11 16:50:08 +0000 | [diff] [blame] | 2915 | } |
Denis Vlasenko | 00cdbd8 | 2007-01-21 19:21:21 +0000 | [diff] [blame] | 2916 | |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 2917 | command_len++; |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2918 | if (cursor == (command_len - 1)) { |
| 2919 | /* We are at the end, append */ |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 2920 | command_ps[cursor] = ic; |
| 2921 | command_ps[cursor + 1] = BB_NUL; |
Denys Vlasenko | 94043e8 | 2010-05-11 14:49:13 +0200 | [diff] [blame] | 2922 | put_cur_glyph_and_inc_cursor(); |
Tomas Heinrich | aa16755 | 2010-03-26 13:13:24 +0100 | [diff] [blame] | 2923 | if (unicode_bidi_isrtl(ic)) |
Tomas Heinrich | c5c006c | 2010-03-18 18:35:37 +0100 | [diff] [blame] | 2924 | input_backward(1); |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2925 | } else { |
| 2926 | /* In the middle, insert */ |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 2927 | int sc = cursor; |
Erik Andersen | c7c634b | 2000-03-19 05:28:55 +0000 | [diff] [blame] | 2928 | |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 2929 | memmove(command_ps + sc + 1, command_ps + sc, |
| 2930 | (command_len - sc) * sizeof(command_ps[0])); |
| 2931 | command_ps[sc] = ic; |
Tomas Heinrich | aa16755 | 2010-03-26 13:13:24 +0100 | [diff] [blame] | 2932 | /* is right-to-left char, or neutral one (e.g. comma) was just added to rtl text? */ |
| 2933 | if (!isrtl_str()) |
| 2934 | sc++; /* no */ |
Denys Vlasenko | 94043e8 | 2010-05-11 14:49:13 +0200 | [diff] [blame] | 2935 | put_till_end_and_adv_cursor(); |
Mark Whitley | 4e33875 | 2001-01-26 20:42:23 +0000 | [diff] [blame] | 2936 | /* to prev x pos + 1 */ |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 2937 | input_backward(cursor - sc); |
Erik Andersen | c7c634b | 2000-03-19 05:28:55 +0000 | [diff] [blame] | 2938 | } |
Erik Andersen | c7c634b | 2000-03-19 05:28:55 +0000 | [diff] [blame] | 2939 | break; |
Denys Vlasenko | 04bb6b6 | 2009-10-14 12:53:04 +0200 | [diff] [blame] | 2940 | } /* switch (ic) */ |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2941 | |
| 2942 | if (break_out) |
Erik Andersen | c7c634b | 2000-03-19 05:28:55 +0000 | [diff] [blame] | 2943 | break; |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 2944 | |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 2945 | #if ENABLE_FEATURE_TAB_COMPLETION |
Denys Vlasenko | 04bb6b6 | 2009-10-14 12:53:04 +0200 | [diff] [blame] | 2946 | if (ic_raw != '\t') |
Denys Vlasenko | 57ea9b4 | 2010-09-03 12:51:36 +0200 | [diff] [blame] | 2947 | lastWasTab = 0; |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 2948 | #endif |
Denys Vlasenko | c15f40c | 2009-05-15 03:27:53 +0200 | [diff] [blame] | 2949 | } /* while (1) */ |
Erik Andersen | c7c634b | 2000-03-19 05:28:55 +0000 | [diff] [blame] | 2950 | |
Denys Vlasenko | eb62d7c | 2009-10-27 10:34:06 +0100 | [diff] [blame] | 2951 | #if ENABLE_FEATURE_EDITING_ASK_TERMINAL |
Denys Vlasenko | d83bbf4 | 2009-10-27 10:47:49 +0100 | [diff] [blame] | 2952 | if (S.sent_ESC_br6n) { |
Denys Vlasenko | eb62d7c | 2009-10-27 10:34:06 +0100 | [diff] [blame] | 2953 | /* "sleep 1; busybox ash" + hold [Enter] to trigger. |
| 2954 | * We sent "ESC [ 6 n", but got '\n' first, and |
| 2955 | * KEYCODE_CURSOR_POS response is now buffered from terminal. |
| 2956 | * It's bad already and not much can be done with it |
| 2957 | * (it _will_ be visible for the next process to read stdin), |
| 2958 | * but without this delay it even shows up on the screen |
| 2959 | * as garbage because we restore echo settings with tcsetattr |
| 2960 | * before it comes in. UGLY! |
| 2961 | */ |
| 2962 | usleep(20*1000); |
Denys Vlasenko | fae7332 | 2020-12-21 21:55:03 +0100 | [diff] [blame] | 2963 | // MAYBE? tcflush(STDIN_FILENO, TCIFLUSH); /* flushes data received but not read */ |
Denys Vlasenko | eb62d7c | 2009-10-27 10:34:06 +0100 | [diff] [blame] | 2964 | } |
| 2965 | #endif |
| 2966 | |
Denys Vlasenko | b9e35dc | 2010-07-18 22:21:24 +0200 | [diff] [blame] | 2967 | /* End of bug-catching "command_must_not_be_used" trick */ |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 2968 | #undef command |
| 2969 | |
Denys Vlasenko | 19158a8 | 2010-03-26 14:06:56 +0100 | [diff] [blame] | 2970 | #if ENABLE_UNICODE_SUPPORT |
Denys Vlasenko | 2f3f09c | 2009-09-29 00:00:12 +0200 | [diff] [blame] | 2971 | command[0] = '\0'; |
| 2972 | if (command_len > 0) |
| 2973 | command_len = save_string(command, maxsize - 1); |
Denys Vlasenko | 2e6d4ef | 2009-07-10 18:40:49 +0200 | [diff] [blame] | 2974 | free(command_ps); |
| 2975 | #endif |
| 2976 | |
Flemming Madsen | d96ffda | 2013-04-07 18:47:24 +0200 | [diff] [blame] | 2977 | if (command_len > 0) { |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 2978 | remember_in_history(command); |
Flemming Madsen | d96ffda | 2013-04-07 18:47:24 +0200 | [diff] [blame] | 2979 | } |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2980 | |
Eric Andersen | 27bb790 | 2003-12-23 20:24:51 +0000 | [diff] [blame] | 2981 | if (break_out > 0) { |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 2982 | command[command_len++] = '\n'; |
| 2983 | command[command_len] = '\0'; |
Eric Andersen | 044228d | 2001-07-17 01:12:36 +0000 | [diff] [blame] | 2984 | } |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2985 | |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 2986 | #if ENABLE_FEATURE_TAB_COMPLETION |
Denis Vlasenko | 5592fac | 2007-01-21 19:19:46 +0000 | [diff] [blame] | 2987 | free_tab_completion_data(); |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 2988 | #endif |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 2989 | |
Denis Vlasenko | 6258fd3 | 2007-01-22 07:30:26 +0000 | [diff] [blame] | 2990 | /* restore initial_settings */ |
Denis Vlasenko | 202ac50 | 2008-11-05 13:20:58 +0000 | [diff] [blame] | 2991 | tcsetattr_stdin_TCSANOW(&initial_settings); |
Ron Yorston | 2328690 | 2018-02-25 20:09:54 +0100 | [diff] [blame] | 2992 | #if ENABLE_FEATURE_EDITING_WINCH |
Denis Vlasenko | 6258fd3 | 2007-01-22 07:30:26 +0000 | [diff] [blame] | 2993 | /* restore SIGWINCH handler */ |
Denys Vlasenko | bff71d3 | 2016-11-27 22:25:07 +0100 | [diff] [blame] | 2994 | sigaction_set(SIGWINCH, &S.SIGWINCH_handler); |
Ron Yorston | 2328690 | 2018-02-25 20:09:54 +0100 | [diff] [blame] | 2995 | #endif |
Denys Vlasenko | 8131eea | 2009-11-02 14:19:51 +0100 | [diff] [blame] | 2996 | fflush_all(); |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 2997 | |
Denis Vlasenko | f31c3b6 | 2008-08-20 00:46:32 +0000 | [diff] [blame] | 2998 | len = command_len; |
Denis Vlasenko | 73cb1fd | 2007-11-10 01:35:47 +0000 | [diff] [blame] | 2999 | DEINIT_S(); |
| 3000 | |
Denis Vlasenko | f31c3b6 | 2008-08-20 00:46:32 +0000 | [diff] [blame] | 3001 | return len; /* can't return command_len, DEINIT_S() destroys it */ |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 3002 | } |
| 3003 | |
Denys Vlasenko | b9e35dc | 2010-07-18 22:21:24 +0200 | [diff] [blame] | 3004 | #else /* !FEATURE_EDITING */ |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 3005 | |
| 3006 | #undef read_line_input |
Denis Vlasenko | defc1ea | 2008-06-27 02:52:20 +0000 | [diff] [blame] | 3007 | int FAST_FUNC read_line_input(const char* prompt, char* command, int maxsize) |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 3008 | { |
Ron Yorston | cad3fc7 | 2021-02-03 20:47:14 +0100 | [diff] [blame] | 3009 | fputs_stdout(prompt); |
Denys Vlasenko | 8131eea | 2009-11-02 14:19:51 +0100 | [diff] [blame] | 3010 | fflush_all(); |
Denys Vlasenko | b232037 | 2012-09-27 16:03:49 +0200 | [diff] [blame] | 3011 | if (!fgets(command, maxsize, stdin)) |
| 3012 | return -1; |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 3013 | return strlen(command); |
Eric Andersen | 501c88b | 2000-07-28 15:14:45 +0000 | [diff] [blame] | 3014 | } |
| 3015 | |
Denys Vlasenko | b9e35dc | 2010-07-18 22:21:24 +0200 | [diff] [blame] | 3016 | #endif /* !FEATURE_EDITING */ |
Eric Andersen | 501c88b | 2000-07-28 15:14:45 +0000 | [diff] [blame] | 3017 | |
| 3018 | |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 3019 | /* |
| 3020 | * Testing |
| 3021 | */ |
| 3022 | |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 3023 | #ifdef TEST |
| 3024 | |
Eric Andersen | f9ff8a7 | 2001-03-15 20:51:09 +0000 | [diff] [blame] | 3025 | #include <locale.h> |
Denis Vlasenko | 82b39e8 | 2007-01-21 19:18:19 +0000 | [diff] [blame] | 3026 | |
| 3027 | const char *applet_name = "debug stuff usage"; |
Eric Andersen | f9ff8a7 | 2001-03-15 20:51:09 +0000 | [diff] [blame] | 3028 | |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 3029 | int main(int argc, char **argv) |
| 3030 | { |
Denis Vlasenko | e8a0788 | 2007-06-10 15:08:44 +0000 | [diff] [blame] | 3031 | char buff[MAX_LINELEN]; |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 3032 | char *prompt = |
Denis Vlasenko | 38f6319 | 2007-01-22 09:03:07 +0000 | [diff] [blame] | 3033 | #if ENABLE_FEATURE_EDITING_FANCY_PROMPT |
Denis Vlasenko | 0a8a774 | 2006-12-21 22:27:10 +0000 | [diff] [blame] | 3034 | "\\[\\033[32;1m\\]\\u@\\[\\x1b[33;1m\\]\\h:" |
| 3035 | "\\[\\033[34;1m\\]\\w\\[\\033[35;1m\\] " |
Denys Vlasenko | 8187e01 | 2017-09-13 22:48:30 +0200 | [diff] [blame] | 3036 | "\\!\\[\\e[36;1m\\]\\$ \\[\\E[m\\]"; |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 3037 | #else |
| 3038 | "% "; |
| 3039 | #endif |
| 3040 | |
Denis Vlasenko | 7f1dc21 | 2006-12-19 01:10:25 +0000 | [diff] [blame] | 3041 | while (1) { |
Eric Andersen | b3d6e2d | 2001-03-13 22:57:56 +0000 | [diff] [blame] | 3042 | int l; |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 3043 | l = read_line_input(prompt, buff); |
Denis Vlasenko | 0a8a774 | 2006-12-21 22:27:10 +0000 | [diff] [blame] | 3044 | if (l <= 0 || buff[l-1] != '\n') |
Eric Andersen | 27bb790 | 2003-12-23 20:24:51 +0000 | [diff] [blame] | 3045 | break; |
Denys Vlasenko | 57ea9b4 | 2010-09-03 12:51:36 +0200 | [diff] [blame] | 3046 | buff[l-1] = '\0'; |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 3047 | printf("*** read_line_input() returned line =%s=\n", buff); |
Eric Andersen | 7467c8d | 2001-07-12 20:26:32 +0000 | [diff] [blame] | 3048 | } |
Denis Vlasenko | 8e1c715 | 2007-01-22 07:21:38 +0000 | [diff] [blame] | 3049 | printf("*** read_line_input() detect ^D\n"); |
Eric Andersen | 5f2c79d | 2001-02-16 18:36:04 +0000 | [diff] [blame] | 3050 | return 0; |
| 3051 | } |
| 3052 | |
Eric Andersen | c470f44 | 2003-07-28 09:56:35 +0000 | [diff] [blame] | 3053 | #endif /* TEST */ |