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authormidipix <writeonce@midipix.org>2024-05-28 14:55:48 +0000
committermidipix <writeonce@midipix.org>2024-05-28 15:07:42 +0000
commite80d48160ba6cc0cd83fa3bf57731e8fecf53f46 (patch)
tree0cf1639b390255b11b7807a8c4cd3d9a29d1bb05 /src
parenta69ceb7057c9aa0a067dede85aa8aa61c3928c1d (diff)
downloadtreebnf-e80d48160ba6cc0cd83fa3bf57731e8fecf53f46.tar.bz2
treebnf-e80d48160ba6cc0cd83fa3bf57731e8fecf53f46.tar.xz
argv.h: usage screen: avoid extra <stace> when all long options are hybrid-only.
Diffstat (limited to 'src')
-rw-r--r--src/internal/argv/argv.h12
1 files changed, 11 insertions, 1 deletions
diff --git a/src/internal/argv/argv.h b/src/internal/argv/argv.h
index c6bd761..68abdcd 100644
--- a/src/internal/argv/argv.h
+++ b/src/internal/argv/argv.h
@@ -833,6 +833,7 @@ static void argv_usage_impl(
{
const struct argv_option ** optv;
const struct argv_option * option;
+ int nlong;
bool fshort,flong,fboth;
size_t len,optlen,desclen;
char cache;
@@ -865,7 +866,7 @@ static void argv_usage_impl(
if (header)
argv_dprintf(fd,"%s",header);
- for (optlen=0,optv=options; *optv; optv++) {
+ for (optlen=0,nlong=0,optv=options; *optv; optv++) {
option = *optv;
/* indent + comma */
@@ -884,6 +885,11 @@ static void argv_usage_impl(
/* optlen */
if (len > optlen)
optlen = len;
+
+ /* long (vs. hybrid-only) option? */
+ if (option->long_name)
+ if (!(option->flags & ARGV_OPTION_HYBRID_ONLY))
+ nlong++;
}
if (optlen >= optcap) {
@@ -918,6 +924,10 @@ static void argv_usage_impl(
prefix = option->flags & ARGV_OPTION_HYBRID_ONLY
? " -" : " --";
+ /* avoid extra <stace> when all long opts are hybrid-only */
+ if (nlong == 0)
+ prefix++;
+
/* option string */
if (fboth && option->short_name && option->long_name)
sprintf(optstr,"%s-%c,%s%s",