+XML Version
+
+Expat is an XML 1.0 parser, and as such never complains based on
+the value of the version psuedo-attribute in the XML
+declaration, if present.
+
+If an application needs to check the version number (to support
+alternate processing), it should use the XML_SetXmlDeclHandler function to
+set a handler that uses the information in the XML declaration to
+determine what to do. This example shows how to check that only a
+version number of "1.0" is accepted:
+
+
+static int wrong_version;
+static XML_Parser parser;
+
+static void
+xmldecl_handler(void *userData,
+ const XML_Char *version,
+ const XML_Char *encoding,
+ int standalone)
+{
+ static const XML_Char Version_1_0[] = {'1', '.', '0', 0};
+
+ int i;
+
+ for (i = 0; i < (sizeof(Version_1_0) / sizeof(Version_1_0[0])); ++i) {
+ if (version[i] != Version_1_0[i]) {
+ wrong_version = 1;
+ /* also clear all other handlers: */
+ XML_SetCharacterDataHandler(parser, NULL);
+ ...
+ return;
+ }
+ }
+ ...
+}
+
+
Namespace Processing
When the parser is created using the