Use help formatting routines from dxcommon.

[gob-dx.git] / src / main.c

diff --git a/src/main.c b/src/main.c
index 8e6c04e0feb1f15420ce11b163c200d57b863c30..0e6c55c84c1709aeed581a94f1a7ac679a0bd689 100644 (file)
--- a/src/main.c
+++ b/src/main.c
@@ -2,7 +2,7 @@
  * Copyright (C) 1999,2000 the Free Software Foundation.
  * Copyright (C) 2000 Eazel, Inc.
  * Copyright (C) 2001-2011 George (Jiri) Lebl
- * Copyright © 2019-2021 Nick Bowler
+ * Copyright © 2019-2022 Nick Bowler
  *
  * Author: George (Jiri) Lebl
  *
@@ -39,6 +39,7 @@
 #include "out.h"
 #include "util.h"
 #include "checks.h"
+#include "help.h"
 
 #include "main.h"
 
@@ -4535,13 +4536,11 @@ generate_outfiles(void)
 static void print_version(void)
 {
        printf("%s (%s) %s\n", PACKAGE_NAME, PACKAGE_TARNAME, PACKAGE_VERSION);
-       putchar('\n');
        puts("Copyright (C) 2013 George (Jiri) Lebl et al.");
-       puts("Copyright (C) 2020 Nick Bowler");
-       puts("License GPLv2+: GNU GPL version 2 or later <https://gnu.org/licenses/gpl.html>.");
+       puts("Copyright (C) 2022 Nick Bowler");
+       puts("License GPLv2+: GNU GPL version 2 or any later version");
        puts("This is free software: you are free to change and redistribute it.");
        puts("There is NO WARRANTY, to the extent permitted by law.");
-
 }
 
 static void print_usage(FILE *f)
@@ -4553,46 +4552,6 @@ static void print_usage(FILE *f)
        }
 }
 
-/*
- * Given a long option, return the corresponding short option character,
- * or 0 if there is no such character.
- */
-static char lopt_to_sopt(const char *sopts, const struct option *opt)
-{
-       int val = opt->val;
-       const char *c;
-
-       if (val <= 0 || val > CHAR_MAX)
-               return 0;
-
-       if (val == ':' || val == '+' || val == '-')
-               return 0;
-
-       c = strchr(sopts, opt->val);
-       if (c)
-               return *c;
-       return 0;
-}
-
-/*
- * Print a string, with each line indented by i spaces.  The first line
- * will be indented by w fewer spaces (to account for the cursor being in
- * some other column).
- */
-static void print_block(const char *s, int i, int w)
-{
-       for (; *s; w = 0) {
-               const char *nl = strchr(s, '\n');
-               int n = (nl ? nl-s : -1);
-
-               printf("%*s%.*s\n", i-w, "", n, s);
-               if (!nl)
-                       break;
-
-               s = nl+1;
-       }
-}
-
 static void print_help(void)
 {
        const struct option *opt;
@@ -4605,8 +4564,6 @@ static void print_help(void)
        puts("\nOptions:");
        for (opt = lopts; opt->name; opt++) {
                struct lopt_help help;
-               char sopt;
-               int w;
 
                /* Don't display obsolete options that don't do anything */
                if (!opt->flag && !opt->val)
@@ -4615,24 +4572,7 @@ static void print_help(void)
                if (!lopt_get_help(opt, &help))
                        continue;
 
-               if ((sopt = lopt_to_sopt(sopts, opt))) {
-                       w = printf(opt->has_arg == 0 ? "  -%c, --%s"
-                                  : opt->has_arg == 1 ? "  -%c, --%s=%s"
-                                  : "  -%c, --%s[=%s]",
-                                  sopt, opt->name, help.arg);
-               } else {
-                       w = printf(opt->has_arg == 0 ? "  --%s"
-                                  : opt->has_arg == 1 ? "  --%s=%s"
-                                  : "  --%s[=%s]",
-                                  opt->name, help.arg);
-               }
-
-               if (w < 0 || w > 18) {
-                       putchar('\n');
-                       w = 0;
-               }
-
-               print_block(help.desc, 20, w);
+               help_print_option(opt, help.arg, help.desc, 20);
        }
        putchar('\n');