diff options
Diffstat (limited to 'libshouldbeinlibc/argp-help.c')
| -rw-r--r-- | libshouldbeinlibc/argp-help.c | 44 |
1 files changed, 33 insertions, 11 deletions
diff --git a/libshouldbeinlibc/argp-help.c b/libshouldbeinlibc/argp-help.c index 3a5d4ae0..5e54c6f4 100644 --- a/libshouldbeinlibc/argp-help.c +++ b/libshouldbeinlibc/argp-help.c @@ -592,8 +592,6 @@ hol_help (struct hol *hol, FILE *stream) static void hol_usage (struct hol *hol, FILE *stream) { - int old_wm = line_wrap_set_wmargin (stream, USAGE_INDENT); - if (hol->num_entries > 0) { unsigned nentries; @@ -618,7 +616,7 @@ hol_usage (struct hol *hol, FILE *stream) if (snao_end > short_no_arg_opts) { *snao_end++ = 0; - fprintf (stream, "[-%s]", short_no_arg_opts); + fprintf (stream, " [-%s]", short_no_arg_opts); } /* Now a list of short options *with* arguments. */ @@ -631,11 +629,20 @@ hol_usage (struct hol *hol, FILE *stream) { if (opt->arg || real->arg) if ((opt->flags | real->flags) & OPTION_ARG_OPTIONAL) - fprintf (stream, "[-%c[%s]]", + fprintf (stream, " [-%c[%s]]", opt->key, opt->arg ?: real->arg); else - fprintf (stream, "[-%c %s]", - opt->key, opt->arg ?: real->arg); + { + const char *arg = opt->arg ?: real->arg; + /* Manually do line wrapping so that it (probably) won't + get wrapped at the embedded space. */ + if (line_wrap_point (stream) + 6 + strlen (arg) + >= line_wrap_rmargin (stream)) + putc ('\n', stream); + else + putc (' ', stream); + fprintf (stream, "[-%c %s]", opt->key, arg); + } return 0; } hol_entry_short_iterate (entry, func3); @@ -651,19 +658,18 @@ hol_usage (struct hol *hol, FILE *stream) { if (opt->arg || real->arg) if ((opt->flags | real->flags) & OPTION_ARG_OPTIONAL) - fprintf (stream, "[--%s[=%s]]", + fprintf (stream, " [--%s[=%s]]", opt->name, opt->arg ?: real->arg); else - fprintf (stream, "[--%s=%s]", + fprintf (stream, " [--%s=%s]", opt->name, opt->arg ?: real->arg); else - fprintf (stream, "[--%s]", opt->name); + fprintf (stream, " [--%s]", opt->name); return 0; } hol_entry_long_iterate (entry, func4); } } - line_wrap_set_wmargin (stream, old_wm); } /* Make a HOL containing all levels of options in ARGP. */ @@ -686,7 +692,16 @@ argp_args_usage (const struct argp *argp, FILE *stream) const struct argp **children = argp->children; const char *doc = argp->args_doc; if (doc) - fprintf (stream, "%s", doc); + { + /* Manually do line wrapping so that it (probably) won't get wrapped at + any embedded spaces. */ + if (line_wrap_point (stream) + 1 + strlen (doc) + >= line_wrap_rmargin (stream)) + putc ('\n', stream); + else + putc (' ', stream); + fputs (doc, stream); + } if (children) while (*children) argp_args_usage (*children++, stream); @@ -735,6 +750,9 @@ void argp_help (const struct argp *argp, FILE *stream, unsigned flags) if (flags & (ARGP_HELP_USAGE | ARGP_HELP_SHORT_USAGE)) /* Print a short `Usage:' message. */ { + int old_wm = line_wrap_set_wmargin (stream, USAGE_INDENT); + int old_lm = line_wrap_set_lmargin (stream, USAGE_INDENT); + fprintf (stream, "Usage: %s", program_invocation_name); if (flags & ARGP_HELP_SHORT_USAGE) /* Just show where the options go. */ @@ -746,6 +764,10 @@ void argp_help (const struct argp *argp, FILE *stream, unsigned flags) /* Actually print the options. */ hol_usage (hol, stream); argp_args_usage (argp, stream); + + line_wrap_set_wmargin (stream, old_wm); + line_wrap_set_lmargin (stream, old_lm); + putc ('\n', stream); first = 0; } |