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authormidipix <writeonce@midipix.org>2016-05-01 09:36:19 -0400
committermidipix <writeonce@midipix.org>2016-11-10 23:35:43 -0500
commitec758241f5799fdbef9d481e2b3c63c7d46c4fc7 (patch)
tree1206d73e2a8b27d15425c9b00f8d2fa1c59b3b58 /src/internal/argv
parente4ef86b5805c875a7ddb8b8b9f6d92ae41635c60 (diff)
downloadperk-ec758241f5799fdbef9d481e2b3c63c7d46c4fc7.tar.bz2
perk-ec758241f5799fdbef9d481e2b3c63c7d46c4fc7.tar.xz
argv.h: usage screen generator: add colors.
Diffstat (limited to 'src/internal/argv')
-rw-r--r--src/internal/argv/argv.h21
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