1 files changed, 30 insertions, 0 deletions
diff --git a/shared/strbuf.h b/shared/strbuf.h
new file mode 100644
index 0000000..0f7ceb1
--- /dev/null
+++ b/shared/strbuf.h
@@ -0,0 +1,30 @@
+#pragma once
+
+#include <stdbool.h>
+
+/*
+ * Buffer abstract data type
+ */
+struct strbuf {
+	char *bytes;
+	unsigned size;
+	unsigned used;
+};
+
+void strbuf_init(struct strbuf *buf);
+void strbuf_release(struct strbuf *buf);
+void strbuf_clear(struct strbuf *buf);
+
+/* Destroy buffer and return a copy as a C string */
+char *strbuf_steal(struct strbuf *buf);
+
+/*
+ * Return a C string owned by the buffer invalidated if the buffer is
+ * changed).
+ */
+const char *strbuf_str(struct strbuf *buf);
+
+bool strbuf_pushchar(struct strbuf *buf, char ch);
+unsigned strbuf_pushchars(struct strbuf *buf, const char *str);
+void strbuf_popchar(struct strbuf *buf);
+void strbuf_popchars(struct strbuf *buf, unsigned n);