8808f7fc2
Jody Bruchon
2017-03-30
Subject
uniq: add -i option to ignore case
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coreutils/uniq.c+8 -2
| @@ -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; | |
| } | |