1 files changed, 101 insertions, 0 deletions
diff --git a/src/json/strbuffer.c b/src/json/strbuffer.c
new file mode 100644
index 000000000..8ba7faa9a
--- /dev/null
+++ b/src/json/strbuffer.c
@@ -0,0 +1,101 @@
+/*
+ * Copyright (c) 2009 Petri Lehtinen <petri@digip.org>
+ *
+ * Jansson is free software; you can redistribute it and/or modify
+ * it under the terms of the MIT license. See LICENSE for details.
+ */
+
+#include "../config.h"
+#include "strbuffer.h"
+#include "util.h"
+
+#define STRBUFFER_MIN_SIZE  16
+#define STRBUFFER_FACTOR    2
+
+int
+strbuffer_init (strbuffer_t * strbuff)
+{
+	strbuff->size = STRBUFFER_MIN_SIZE;
+	strbuff->length = 0;
+
+	strbuff->value = g_malloc (strbuff->size);
+	if (!strbuff->value)
+		return -1;
+
+	/* initialize to empty */
+	strbuff->value[0] = '\0';
+	return 0;
+}
+
+void
+strbuffer_close (strbuffer_t * strbuff)
+{
+	g_free (strbuff->value);
+	strbuff->size = 0;
+	strbuff->length = 0;
+	strbuff->value = NULL;
+}
+
+void
+strbuffer_clear (strbuffer_t * strbuff)
+{
+	strbuff->length = 0;
+	strbuff->value[0] = '\0';
+}
+
+const char     *
+strbuffer_value (const strbuffer_t * strbuff)
+{
+	return strbuff->value;
+}
+
+char           *
+strbuffer_steal_value (strbuffer_t * strbuff)
+{
+	char           *result = strbuff->value;
+	strbuffer_init (strbuff);
+	return result;
+}
+
+int
+strbuffer_append (strbuffer_t * strbuff, const char *string)
+{
+	return strbuffer_append_bytes (strbuff, string, strlen (string));
+}
+
+int
+strbuffer_append_byte (strbuffer_t * strbuff, char byte)
+{
+	return strbuffer_append_bytes (strbuff, &byte, 1);
+}
+
+int
+strbuffer_append_bytes (strbuffer_t * strbuff, const char *data, int size)
+{
+	if (strbuff->length + size >= strbuff->size) {
+		strbuff->size = max (strbuff->size * STRBUFFER_FACTOR,
+			strbuff->length + size + 1);
+
+		strbuff->value = realloc (strbuff->value, strbuff->size);
+		if (!strbuff->value)
+			return -1;
+	}
+
+	memcpy (strbuff->value + strbuff->length, data, size);
+	strbuff->length += size;
+	strbuff->value[strbuff->length] = '\0';
+
+	return 0;
+}
+
+char
+strbuffer_pop (strbuffer_t * strbuff)
+{
+	if (strbuff->length > 0) {
+		char            c = strbuff->value[--strbuff->length];
+		strbuff->value[strbuff->length] = '\0';
+		return c;
+	}
+	else
+		return '\0';
+}