From bd22d0e47d0fb203286b088f048cf1aff1fa93a1 Mon Sep 17 00:00:00 2001
From: Tom Smeding <tom@tomsmeding.com>
Date: Mon, 22 Jul 2024 23:14:43 +0200
Subject: Nieuw optieontleedsysteem, en migreer weerklank

---
 src/weerklank.c | 63 ++++++++++++++++++---------------------------------------
 1 file changed, 20 insertions(+), 43 deletions(-)

(limited to 'src/weerklank.c')

diff --git a/src/weerklank.c b/src/weerklank.c
index ad03389..18b8b59 100644
--- a/src/weerklank.c
+++ b/src/weerklank.c
@@ -1,22 +1,17 @@
 #include <stdio.h>
-#include <stdlib.h>
 #include <stdbool.h>
-#include <string.h>
 #include <ctype.h>
-#include <unistd.h>
-#include "util/versie.h"
-
-static void usage(FILE *f) {
-  fprintf(f,
-      "Gebruik: weerklank [-nehV] [touwtje]...\n"
-      "\n"
-      "Exporteer de touwtjes.\n"
-      "\n"
-      "  -n    Voeg geen nieuwe regel toe\n"
-      "  -e    Ontleed terugslagontsnappingen\n"
-      "  -h    Toon deze hulptekst\n"
-      "  -V    Toon versienummer\n");
-}
+#include "util/option.h"
+
+static const char *usage_string =
+  "Gebruik: %s [-nehV] [touwtje]...\n"
+  "\n"
+  "Exporteer de touwtjes.\n"
+  "\n"
+  "  -n    Voeg geen nieuwe regel toe\n"
+  "  -e    Ontleed terugslagontsnappingen\n"
+  "  -h    Toon deze hulptekst\n"
+  "  -V    Toon versienummer\n";
 
 struct options {
   bool nonewline;
@@ -25,33 +20,15 @@ struct options {
 
 // Returns pointer to argument array containing the file names
 static char** parse_options(int argc, char **argv, struct options *opts) {
-  int opt;
-  while ((opt = getopt(argc, argv, "nehV")) != -1) {
-    switch (opt) {
-      case 'n':
-        opts->nonewline = true;
-        break;
-
-      case 'e':
-        opts->unescape = true;
-        break;
-
-      case 'h':
-        usage(stdout);
-        exit(0);
-
-      case 'V':
-        drukkedoos_print_versie(stdout, "weerklank");
-        exit(0);
-
-      case '?':
-        fprintf(stderr, "weerklank: Ongeldige optie: -%c\n", optopt);
-        usage(stderr);
-        exit(1);
-    }
-  }
-
-  return argv + optind;
+  const struct option_spec spec[] = {
+    {'n', OPTION_SETBOOL(&opts->nonewline)},
+    {'e', OPTION_SETBOOL(&opts->unescape)},
+    {'h', OPTION_HELPUSAGE(usage_string)},
+    {'V', OPTION_VERSION()},
+    OPTION_SPEC_END
+  };
+
+  return option_parse(argc, argv, spec);
 }
 
 static const char lowercase_escapes[] = "\a\b\0\0\e\f\0\0\0\0\0\0\0\n\0\0\0\r\0\t\0\v\0\0\0\0";
-- 
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