hush: fix for nested $()s with escapes + testsuite
diff --git a/shell/hush.c b/shell/hush.c
index 735526a..77a3051 100644
--- a/shell/hush.c
+++ b/shell/hush.c
@@ -3498,6 +3498,13 @@
o_addqchr(dest, ch, 1);
continue;
}
+ if (ch == '\\') { /* \x. Copy verbatim. Important for \(, \) */
+ ch = i_getch(input);
+ if (ch == EOF)
+ break;
+ o_addqchr(dest, ch, 1);
+ continue;
+ }
}
}
#endif /* ENABLE_HUSH_TICK */
@@ -3556,13 +3563,16 @@
o_addchr(dest, SPECIAL_VAR_SYMBOL);
break;
#if ENABLE_HUSH_TICK
- case '(':
+ case '(': {
+ //int pos = dest->length;
i_getch(input);
o_addchr(dest, SPECIAL_VAR_SYMBOL);
o_addchr(dest, quote_mask | '`');
add_till_closing_curly_brace(dest, input);
+ //bb_error_msg("RES '%s'", dest->data + pos);
o_addchr(dest, SPECIAL_VAR_SYMBOL);
break;
+ }
#endif
case '-':
case '_':