diff: honor flag -i (ignore case differences)
>>From 503a1e1d2597f7cdf86a9ea39ebd2aee050ca759 Mon Sep 17 00:00:00 2001
From: Matheus Izvekov <mizvekov@gmail.com>
Date: Mon, 18 Jan 2010 14:06:26 -0200
Subject: [PATCH] diff: honor flag -i (ignore case differences)
function old new delta
read_token 157 178 +21
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 1/0 up/down: 21/0) Total: 21 bytes
text data bss dec hex filename
70102 733 8576 79411 13633 busybox_old
70123 733 8576 79432 13648 busybox_unstripped
Signed-off-by: Matheus Izvekov <mizvekov@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/editors/diff.c b/editors/diff.c
index 0c75873..ef20305 100644
--- a/editors/diff.c
+++ b/editors/diff.c
@@ -94,7 +94,7 @@
FLAG_a,
FLAG_b,
FLAG_d,
- FLAG_i, /* unused */
+ FLAG_i,
FLAG_L, /* unused */
FLAG_N,
FLAG_q,
@@ -177,6 +177,9 @@
if (t == '\n')
tok |= TOK_EOL;
+ if (option_mask32 & FLAG(i)) /* Handcoded tolower() */
+ t = (t >= 'A' && t <= 'Z') ? t - ('A' - 'a') : t;
+
if ((option_mask32 & FLAG(w)) && is_space)
continue;