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| author | midipix <writeonce@midipix.org> | 2016-05-01 09:36:19 -0400 |
|---|---|---|
| committer | midipix <writeonce@midipix.org> | 2016-11-10 23:35:43 -0500 |
| commit | ec758241f5799fdbef9d481e2b3c63c7d46c4fc7 (patch) | |
| tree | 1206d73e2a8b27d15425c9b00f8d2fa1c59b3b58 /src | |
| parent | e4ef86b5805c875a7ddb8b8b9f6d92ae41635c60 (diff) | |
| download | perk-ec758241f5799fdbef9d481e2b3c63c7d46c4fc7.tar.bz2 perk-ec758241f5799fdbef9d481e2b3c63c7d46c4fc7.tar.xz | |
argv.h: usage screen generator: add colors.
Diffstat (limited to 'src')
| -rw-r--r-- | src/internal/argv/argv.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/internal/argv/argv.h b/src/internal/argv/argv.h index 86649eb..442492a 100644 --- a/src/internal/argv/argv.h +++ b/src/internal/argv/argv.h @@ -15,6 +15,7 @@ #include <string.h> #include <stdlib.h> #include <stdio.h> +#include <unistd.h> #define ARGV_VERBOSITY_NONE 0x00 #define ARGV_VERBOSITY_ERRORS 0x01 @@ -748,10 +749,21 @@ static void argv_usage( const size_t optcap = 64; const size_t width = 80; const char indent[] = " "; + const char creset[] = "\x1b[0m"; + const char cbold [] = "\x1b[1m"; + const char cgreen[] = "\x1b[32m"; + const char cblue [] = "\x1b[34m"; + const char ccyan [] = "\x1b[36m"; + const char * color = ccyan; + bool fcolor; fshort = mode ? !strcmp(mode,"short") : 0; flong = fshort ? 0 : mode && !strcmp(mode,"long"); fboth = !fshort && !flong; + fcolor = isatty(STDOUT_FILENO); + + if (fcolor) + fprintf(stdout,"%s%s",cbold,cgreen); if (header) fprintf(stdout,"%s",header); @@ -791,6 +803,12 @@ static void argv_usage( desclen = (optlen < width / 2) ? width - optlen : optlen; for (option=options; option->short_name || option->long_name; option++) { + /* color */ + if (fcolor) { + color = (color == ccyan) ? cblue : ccyan; + fputs(color,stdout); + } + /* description, using either paradigm or argname if applicable */ snprintf(description,sizeof(description),option->description, option->paradigm @@ -870,6 +888,9 @@ static void argv_usage( } } } + + if (fcolor) + fputs(creset,stdout); } #endif |