1 files changed, 45 insertions, 0 deletions
diff --git a/include/cli.h b/include/cli.h
new file mode 100644
index 0000000..7b5b611
--- /dev/null
+++ b/include/cli.h
@@ -0,0 +1,45 @@
+#ifndef MLIB_CLI_H
+#define MLIB_CLI_H
+
+#include <stddef.h>
+
+#include "_attrs.h"
+#include "_rune.h"
+#include "_u8view.h"
+
+struct optparser {
+	bool _b;
+	int _subopt;
+	char **_argv;
+
+	int optind;
+	char errmsg[128];
+	struct u8view optarg;
+};
+
+enum cliarg {
+	CLI_NONE,
+	CLI_OPT,
+	CLI_REQ,
+};
+
+struct cli_option {
+	rune shortopt;
+	struct u8view longopt;
+	enum cliarg argtype;
+};
+
+[[nodiscard]] rune optparse(struct optparser *, const struct cli_option *,
+                            size_t);
+
+[[_mlib_inline]]
+static inline struct optparser
+mkoptparser(char **argv)
+{
+	return (struct optparser){
+		._argv = argv,
+		.optind = argv[0] != nullptr,
+	};
+}
+
+#endif /* !MLIB_CLI_H */