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

diff --git a/test/crossparse.c b/test/crossparse.c
index 75344cb..05c3095 100644
--- a/test/crossparse.c
+++ b/test/crossparse.c
@@ -1,7 +1,26 @@
+/*
+ * Test that libcdecl can parse its own output.
+ * 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/>.
+ */
+
 #include <config.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <stdbool.h>
 #include <getopt.h>
 #include <cdecl.h>
 #include "test.h"
@@ -24,8 +43,18 @@ static void print_usage(FILE *f)
 
 static void print_help(void)
 {
+	const struct option *opt;
+
 	print_usage(stdout);
-	puts("Detailed help coming soon.");
+	puts("Test that libcdecl can parse its own output.\n");
+
+	puts("Options:");
+	for (opt = lopts; opt->val; opt++) {
+		int w = print_option_start(opt, NULL);
+
+		if (w)
+			putchar('\n');
+	}
 }
 
 enum {
@@ -69,9 +98,44 @@ err:
 }
 #define rerender(str, p, r) (rerender(str, #p, p, #r, r))
 
-int main(int argc, char **argv)
+static bool test_crossparse(const char *str, int mode)
 {
 	char *buf1 = NULL, *buf2 = NULL, *buf3 = NULL;
+	bool ret = false;
+
+	if (mode == MODE_ENGLISH) {
+		buf1 = rerender(str, cdecl_parse_english, cdecl_declare);
+		if (!buf1)
+			goto out;
+		buf2 = rerender(buf1, cdecl_parse_decl, cdecl_explain);
+		if (!buf2)
+			goto out;
+		buf3 = rerender(buf2, cdecl_parse_english, cdecl_declare);
+		if (!buf3)
+			goto out;
+	} else {
+		buf1 = rerender(str, cdecl_parse_decl, cdecl_explain);
+		if (!buf1)
+			goto out;
+		buf2 = rerender(buf1, cdecl_parse_english, cdecl_declare);
+		if (!buf2)
+			goto out;
+		buf3 = rerender(buf2, cdecl_parse_decl, cdecl_explain);
+		if (!buf3)
+			goto out;
+	}
+
+	if (!strcmp(buf1, buf3))
+		ret = true;
+out:
+	free(buf1);
+	free(buf2);
+	free(buf3);
+	return ret;
+}
+
+int main(int argc, char **argv)
+{
 	int opt, mode = MODE_CDECL;
 	int ret = EXIT_FAILURE;
 
@@ -103,33 +167,13 @@ int main(int argc, char **argv)
 		return EXIT_FAILURE;
 	}
 
-	if (mode == MODE_ENGLISH) {
-		buf1 = rerender(argv[optind], cdecl_parse_english, cdecl_declare);
-		if (!buf1)
-			goto out;
-		buf2 = rerender(buf1, cdecl_parse_decl, cdecl_explain);
-		if (!buf2)
-			goto out;
-		buf3 = rerender(buf2, cdecl_parse_english, cdecl_declare);
-		if (!buf3)
-			goto out;
-	} else {
-		buf1 = rerender(argv[optind], cdecl_parse_decl, cdecl_explain);
-		if (!buf1)
-			goto out;
-		buf2 = rerender(buf1, cdecl_parse_english, cdecl_declare);
-		if (!buf2)
-			goto out;
-		buf3 = rerender(buf2, cdecl_parse_decl, cdecl_explain);
-		if (!buf3)
-			goto out;
+	for (int i = optind; i < argc; i++) {
+		if (!test_crossparse(argv[i], mode)) {
+			fprintf(stderr, "%s: failed cross-parse check of: %s\n",
+			                progname, argv[i]);
+			return EXIT_FAILURE;
+		}
 	}
 
-	if (!strcmp(buf1, buf3))
-		ret = EXIT_SUCCESS;
-out:
-	free(buf1);
-	free(buf2);
-	free(buf3);
-	return ret;
+	return EXIT_SUCCESS;
 }