1 files changed, 62 insertions, 0 deletions
diff --git a/src/opt.c b/src/opt.c
new file mode 100644
index 0000000..f4a1969
--- /dev/null
+++ b/src/opt.c
@@ -0,0 +1,62 @@
+#include "opt.h"
+
+#include "../reqs/simple-opt/simple-opt.h"
+
+#include <stdbool.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+static struct simple_opt options[] = {
+	{ SIMPLE_OPT_FLAG, 'h', "help", false,
+		"print this help message and exit" },
+	{ SIMPLE_OPT_FLAG, 'v', "version", false,
+		"print the version of confconf in use and exit" },
+	{ SIMPLE_OPT_STRING, 'i', "input", true,
+		"specify file to read from (default is stdin)", "<file>" },
+	{ SIMPLE_OPT_STRING, 'o', "output", true,
+		"specify file to write to (default is stdout)", "<file>" },
+	{ SIMPLE_OPT_END }
+};
+
+void opt_parse(int argc, char **argv)
+{
+	struct simple_opt_result result;
+	const char version[] = "confconf develop";
+
+	result = simple_opt_parse(argc, argv, options);
+
+	/* parse err */
+	if (result.result_type != SIMPLE_OPT_RESULT_SUCCESS) {
+		simple_opt_print_error(stderr, 80, argv[0], result);
+		exit(EXIT_FAILURE);
+	}
+
+	/* help */
+	if (options[0].was_seen) {
+		simple_opt_print_usage(stdout, 70, argv[0],
+				"[-i input] [-o output]",
+				"confconf is a config file parser generator for C",
+				options);
+		exit(EXIT_SUCCESS);
+	}
+
+	/* version */
+	if (options[1].was_seen) {
+		puts(version);
+		exit(EXIT_SUCCESS);
+	}
+}
+
+const char* opt_infile_str(void)
+{
+	return (options[2].was_seen
+			? options[2].val_string
+			: NULL);
+}
+
+const char* opt_outfile_str(void)
+{
+	return (options[3].was_seen
+			? options[3].val_string
+			: NULL);
+}