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| author | Jody Bruchon | 2017-03-30 18:15:54 +0200 |
|---|---|---|
| committer | Denys Vlasenko | 2017-03-30 18:15:54 +0200 |
| commit | 8808f7fc2ec434621a213c1deb5966833bcfec58 (patch) | |
| tree | 3f881e4741d22afcba561c3bac46b8c799d8cc6d | |
| parent | 257734855cbcc12ddeb0a6ab0fd8ce161becf671 (diff) | |
| download | busybox-8808f7fc2ec434621a213c1deb5966833bcfec58.zip busybox-8808f7fc2ec434621a213c1deb5966833bcfec58.tar.gz | |
uniq: add -i option to ignore case
Signed-off-by: Jody Bruchon <jody@jodybruchon.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| -rw-r--r-- | coreutils/uniq.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/coreutils/uniq.c b/coreutils/uniq.c index be550b5..1c23e1d 100644 --- a/coreutils/uniq.c +++ b/coreutils/uniq.c @@ -54,12 +54,13 @@ int uniq_main(int argc UNUSED_PARAM, char **argv) OPT_f = 0x8, OPT_s = 0x10, OPT_w = 0x20, + OPT_i = 0x40, }; skip_fields = skip_chars = 0; max_chars = INT_MAX; - opt = getopt32(argv, "cduf:+s:+w:+", &skip_fields, &skip_chars, &max_chars); + opt = getopt32(argv, "cduf:+s:+w:+i", &skip_fields, &skip_chars, &max_chars); argv += optind; input_filename = argv[0]; @@ -106,7 +107,12 @@ int uniq_main(int argc UNUSED_PARAM, char **argv) ++cur_compare; } - if (!old_line || strncmp(old_compare, cur_compare, max_chars)) { + if (!old_line) + break; + if ((opt & OPT_i) + ? strncasecmp(old_compare, cur_compare, max_chars) + : strncmp(old_compare, cur_compare, max_chars) + ) { break; } |