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-rw-r--r--editors/diff.c5
1 files changed, 4 insertions, 1 deletions
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 @@ enum { /* Commandline flags */
FLAG_a,
FLAG_b,
FLAG_d,
- FLAG_i, /* unused */
+ FLAG_i,
FLAG_L, /* unused */
FLAG_N,
FLAG_q,
@@ -177,6 +177,9 @@ static int read_token(FILE_and_pos_t *ft, token_t tok)
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;