1 files changed, 20 insertions, 0 deletions
diff --git a/buffer.h b/buffer.h
new file mode 100644
index 0000000..190f579
--- /dev/null
+++ b/buffer.h
@@ -0,0 +1,20 @@
+#ifndef BUFFER_H
+#define BUFFER_H
+
+#include <stddef.h>
+#include <stdbool.h>
+#include "text.h"
+
+typedef struct {
+	char *data;    /* NULL if empty */
+	size_t len;    /* current length of data */
+	size_t size;   /* maximal capacity of the buffer */
+} Buffer;
+
+void buffer_free(Buffer *buf);
+bool buffer_alloc(Buffer *buf, size_t size);
+void buffer_truncate(Buffer *buf);
+bool buffer_put(Buffer *buf, void *data, size_t len);
+bool buffer_append(Buffer *buf, void *data, size_t len);
+
+#endif