1 files changed, 50 insertions, 0 deletions
diff --git a/source/kit/input_stream.h b/source/kit/input_stream.h
new file mode 100644
index 0000000..c60c9e3
--- /dev/null
+++ b/source/kit/input_stream.h
@@ -0,0 +1,50 @@
+#ifndef KIT_INPUT_STREAM_H
+#define KIT_INPUT_STREAM_H
+
+#include "allocator.h"
+#include "string_ref.h"
+
+#include <stdio.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef i64 (*kit_is_read_fn)(void *state, kit_str_t destination);
+
+typedef struct {
+  void          *state;
+  kit_is_read_fn read;
+} kit_is_handle_t;
+
+kit_is_handle_t kit_is_wrap_string(kit_str_t        string,
+                                   kit_allocator_t *alloc);
+
+kit_is_handle_t kit_is_wrap_file(FILE *f, kit_allocator_t *alloc);
+
+void kit_is_destroy(kit_is_handle_t in);
+
+#define KIT_IS_WRAP_STRING(string) kit_is_wrap_string((string), NULL)
+
+#define KIT_IS_WRAP_FILE(f) kit_is_wrap_file((f), NULL)
+
+#define KIT_IS_READ(in, destination) \
+  (in).read((in).state, (destination))
+
+#ifdef __cplusplus
+}
+#endif
+
+#ifndef KIT_DISABLE_SHORT_NAMES
+#  define is_read_fn kit_is_read_fn
+#  define is_handle_t kit_is_handle_t
+#  define is_wrap_string kit_is_wrap_string
+#  define is_wrap_file kit_is_wrap_file
+#  define is_destroy kit_is_destroy
+
+#  define IS_WRAP_STRING KIT_IS_WRAP_STRING
+#  define IS_WRAP_FILE KIT_IS_WRAP_FILE
+#  define IS_READ KIT_IS_READ
+#endif
+
+#endif