X-Git-Url: https://git.draconx.ca/gitweb/cdecl99.git/blobdiff_plain/e031b4f0220432aef6e1864ea6359353dbd8aed3..879d69d46fdf7ddf33beac6c32c7f2646d97d0ca:/test/test.h

diff --git a/test/test.h b/test/test.h
index 7cf89f1..dbf3f82 100644
--- a/test/test.h
+++ b/test/test.h
@@ -1,8 +1,80 @@
+/*
+ * Copyright © 2012, 2020 Nick Bowler
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
 #ifndef CDECL_TEST_H_
 #define CDECL_TEST_H_
 
 #include <stddef.h>
 #include <stdbool.h>
+#include <limits.h>
+#include <assert.h>
+#include <getopt.h>
+
+#ifndef _
+#  define _(x) (x)
+#endif
+
+static inline int
+print_option_start(const struct option *opt, const char *argname)
+{
+	int w;
+
+	if (!argname)
+		argname = _("ARG");
+
+	if (opt->val >= CHAR_MIN && opt->val <= CHAR_MAX) {
+		switch (opt->has_arg) {
+		case 0:
+			w = printf(_("  -%c, --%s"), opt->val, opt->name);
+			break;
+		case 1:
+			w = printf(_("  -%c, --%s=%s"),
+			           opt->val, opt->name, argname);
+			break;
+		case 2:
+			w = printf(_("  -%c, --%s[=%s]"),
+			           opt->val, opt->name, argname);
+			break;
+		default:
+			assert(0);
+		}
+	} else {
+		switch (opt->has_arg) {
+		case 0:
+			w = printf(_("  --%s"), opt->name);
+			break;
+		case 1:
+			w = printf(_("  --%s=%s"), opt->name, argname);
+			break;
+		case 2:
+			w = printf(_("  --%s[=%s]"), opt->name, argname);
+			break;
+		default:
+			assert(0);
+		}
+	}
+
+	if (w > 18) {
+		putchar('\n');
+		w = 0;
+	}
+
+	return w;
+}
 
 struct cdecl_declspec;
 struct cdecl;
@@ -11,6 +83,7 @@ void *malloc_nofail(size_t size);
 void *realloc_nofail(void *ptr, size_t size);
 void test_print_specifiers(struct cdecl_declspec *spec);
 void test_print_decl(struct cdecl *decl);
+void test_explain_decl(struct cdecl *decl);
 
 bool strict_strtoul(unsigned long *val, const char *str, int base);