eina: add eina_simple_xml_attribute_w3c_parse to parse attribute value.

src/lib/eina/eina_simple_xml_parser.c

@@ -556,6 +556,63 @@ eina_simple_xml_attributes_parse(const char *buf, unsigned buflen, Eina_Simple_X
    return EINA_TRUE;
 }
 
+EAPI Eina_Bool
+eina_simple_xml_attribute_w3c_parse(const char *buf, Eina_Simple_XML_Attribute_Cb func, const void *data)
+{
+   const char *end;
+   char *key;
+   char *val;
+   char *next;
+
+   if (!buf) return EINA_FALSE;
+
+   end = buf + strlen(buf);
+   key = alloca(end - buf + 1);
+   val = alloca(end - buf + 1);
+
+   if (buf == end) return EINA_TRUE;
+
+   do
+     {
+        char *sep = strchr(buf, ':');
+        next = strchr(buf, ';');
+
+        key[0] = '\0';
+        val[0] = '\0';
+
+        if (next == NULL && sep != NULL)
+          {
+             memcpy(key, buf, sep - buf);
+             key[sep - buf] = '\0';
+
+             memcpy(val, sep + 1, end - sep - 1);
+             val[end - sep - 1] = '\0';
+          }
+        else if (sep < next && sep != NULL)
+          {
+             memcpy(key, buf, sep - buf);
+             key[sep - buf] = '\0';
+
+             memcpy(val, sep + 1, next - sep - 1);
+             val[next - sep - 1] = '\0';
+          }
+        else if (next)
+          {
+             memcpy(key, buf, next - buf);
+             key[next - buf] = '\0';
+          }
+
+        if (key[0])
+          if (!func((void*) data, key, val))
+            return EINA_FALSE;
+
+        buf = next + 1;
+     }
+   while (next != NULL);
+
+   return EINA_TRUE;
+}
+
 /* Node loader *************************************************************/
 
 EAPI Eina_Simple_XML_Attribute *

src/lib/eina/eina_simple_xml_parser.h

@@ -277,6 +277,23 @@ EAPI const char * eina_simple_xml_tag_attributes_find(const char *buf, unsigned
 EAPI Eina_Bool eina_simple_xml_attributes_parse(const char *buf, unsigned buflen,
 						Eina_Simple_XML_Attribute_Cb func, const void *data);
 
+/**
+ * Given a buffer with the xml value of an attributes, parse them to key:value pairs.
+ *
+ * @param buf the input string. Need to contain \0 terminator.
+ * @param func what to call back while parse to do some action. The
+ *        first parameter is the given user @a data, the second is the
+ *        key (null-terminated) and the last is the value (null
+ *        terminated). These strings should not be modified and
+ *        reference is just valid until the function return.
+ * @param data data to pass to the callback function.
+ *
+ * @return #EINA_TRUE on success or #EINA_FALSE if it was aborted by user or
+ *          parsing error.
+ */
+EAPI Eina_Bool
+eina_simple_xml_attribute_w3c_parse(const char *buf, Eina_Simple_XML_Attribute_Cb func, const void *data);
+
 /**
  * Create (and append) new attribute to tag.
  *