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author | Jim Meyering <jim@meyering.net> | 1993-04-29 05:26:22 +0000 |
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committer | Jim Meyering <jim@meyering.net> | 1993-04-29 05:26:22 +0000 |
commit | 2ff4fc16721b6caac08c16c851024b51b16a1824 (patch) | |
tree | 34d2aba87f63f370d03812e5c8660c2e84b3908e /src/tr.c | |
parent | 19272693f57193a57e5c4c66f65c791b2ee97378 (diff) | |
download | coreutils-2ff4fc16721b6caac08c16c851024b51b16a1824.tar.xz |
add --version and --help
Diffstat (limited to 'src/tr.c')
-rw-r--r-- | src/tr.c | 17 |
1 files changed, 16 insertions, 1 deletions
@@ -26,6 +26,7 @@ #include <sys/types.h> #include "getopt.h" #include "system.h" +#include "version.h" #ifndef LONG_MAX #define LONG_MAX 0x7FFFFFFF @@ -286,12 +287,20 @@ static SET_TYPE in_delete_set[N_CHARS]; two specification strings and the delete switch is not given. */ static char xlate[N_CHARS]; +/* If non-zero, display usage information and exit. */ +static int flag_help; + +/* If non-zero, print the version on standard error. */ +static int flag_version; + static struct option const long_options[] = { {"complement", no_argument, NULL, 'c'}, {"delete", no_argument, NULL, 'd'}, {"squeeze-repeats", no_argument, NULL, 's'}, {"truncate-set1", no_argument, NULL, 't'}, + {"help", no_argument, &flag_help, 1}, + {"version", no_argument, &flag_version, 1}, {NULL, 0, NULL, 0} }; @@ -300,7 +309,7 @@ usage () { fprintf (stderr, "\ Usage: %s [-cdst] [--complement] [--delete] [--squeeze-repeats]\n\ - [--truncate-set1] string1 [string2]\n", + [--truncate-set1] [--help] [--version] string1 [string2]\n", program_name); exit (2); } @@ -1656,6 +1665,12 @@ main (argc, argv) } } + if (flag_version) + fprintf (stderr, "%s\n", version_string); + + if (flag_help) + usage (); + posix_pedantic = (getenv ("POSIXLY_CORRECT") != NULL); non_option_args = argc - optind; |