From 926f29ed81a34a50c9221a2d562119db84a136cb Mon Sep 17 00:00:00 2001
From: David Robillard <d@drobilla.net>
Date: Wed, 11 May 2011 22:27:18 +0000
Subject: Create SerdNodeFlags typedef for flags. Expose serd_strlen. Make
 serd_node_copy tolerate a NULL parameter.

git-svn-id: http://svn.drobilla.net/serd/trunk@168 490d8e77-9747-427b-9fa3-0b8f29cee8a0
---
 src/node.c | 38 +++++++++++++++++++++++++++++++++-----
 1 file changed, 33 insertions(+), 5 deletions(-)

(limited to 'src/node.c')

diff --git a/src/node.c b/src/node.c
index edd0db86..e4bb87cf 100644
--- a/src/node.c
+++ b/src/node.c
@@ -19,6 +19,32 @@
 
 #include "serd_internal.h"
 
+SERD_API
+size_t
+serd_strlen(const uint8_t* str, size_t* n_bytes, SerdNodeFlags* flags)
+{
+	size_t n_chars = 0;
+	size_t i       = 0;
+	for (; str[i]; ++i) {
+		if ((str[i] & 0xC0) != 0x80) {
+			// Does not start with `10', start of a new character
+			++n_chars;
+			switch (str[i]) {
+			case '\r':
+			case '\n':
+				*flags |= SERD_HAS_NEWLINE;
+				break;
+			case '"':
+				*flags |= SERD_HAS_QUOTE;
+			}
+		}
+	}
+	if (n_bytes) {
+		*n_bytes = i + 1;
+	}
+	return n_chars;
+}
+
 SERD_API
 SerdNode
 serd_node_from_string(SerdType type, const uint8_t* buf)
@@ -34,12 +60,14 @@ SERD_API
 SerdNode
 serd_node_copy(const SerdNode* node)
 {
-	SerdNode copy = *node;
-	if (node->buf) {
-		uint8_t* buf  = malloc(copy.n_bytes);
-		memcpy(buf, node->buf, copy.n_bytes);
-		copy.buf = buf;
+	if (!node || !node->buf) {
+		return SERD_NODE_NULL;
 	}
+
+	SerdNode copy = *node;
+	uint8_t* buf  = malloc(copy.n_bytes);
+	memcpy(buf, node->buf, copy.n_bytes);
+	copy.buf = buf;
 	return copy;
 }
 
-- 
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