From 8808f7fc2ec434621a213c1deb5966833bcfec58 Mon Sep 17 00:00:00 2001
From: Jody Bruchon <jody@jodybruchon.com>
Date: Thu, 30 Mar 2017 18:15:54 +0200
Subject: uniq: add -i option to ignore case
Signed-off-by: Jody Bruchon <jody@jodybruchon.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
---
coreutils/uniq.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/coreutils/uniq.c b/coreutils/uniq.c
index be550b5cd..1c23e1d08 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;
}
--
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