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* Fixed: [namespace prefix nc is not supported in full #154](https://github.com/clicon/clixon/issues/154)

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* edit-config "config" parameter did not work with prefix other than null
This commit is contained in:
Olof hagsand 2020-12-02 14:21:17 +01:00
parent 2b9f19a19f
commit d045e8abce
6 changed files with 85 additions and 17 deletions
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20
lib/src/clixon_xpath.c
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@ -35,26 +35,24 @@
* Clixon XML XPATH 1.0 according to https://www.w3.org/TR/xpath-10
*
* Some notes on namespace extensions in Netconf/Yang
* RFC6241 8.9.1
* The set of namespace declarations are those in scope on the <filter> element.
* 1) The xpath is not "namespace-aware" in the sense that if you look for a path, eg
* "n:a/n:b", those must match the XML, so they need to match prefixes AND name in the xml
* such as <n:a><n:b>. An xml with <m:a><m:b> (or <a><b>) will NOT match EVEN IF they have the
* same namespace given by xmlns settings.
* 2) RFC6241 8.9.1
* In the scope of get-.config, the set of namespace declarations are those in scope on the
* <filter> element.
* <rpc message-id="101" xmlns="urn:ietf:params:xml:ns:netconf:base:1.0">
* <get-config>
* <filter xmlns:t="http://example.com/schema/1.2/config"
* type="xpath"
* select="/t:top/t:users/t:user[t:name='fred']"/>
* </get-config>
* We need to add namespace context to the cpath tree, typically in eval. How do
* we do that?
* One observation is that the namespace context is static, so it can not be a part
* of the xpath-tree, which is context-dependent.
* Best is to send it as a (read-only) parameter to the xp_eval family of functions
* as an exlicit namespace context.
* For that you need an API to get/set namespaces: clixon_xml_nscache.c?
* Then you need to fix API functions and this is the real work:
* - Replace all existing functions or create new?
* - Expose explicit namespace parameter, or xml object, or default namespace?
*
* @see README.md#xml-and-xpath for description of xpath implementation
*/
#ifdef HAVE_CONFIG_H
#include "clixon_config.h" /* generated by config & autoconf */
@ -587,7 +585,9 @@ xpath_vec_ctx(cxobj *xcur,
*
* @code
* cxobj *x;
* cvec *nsc; // namespace context
* cvec *nsc = NULL; // namespace context
* if (xml_nsctx_node(xtop, &nsc) < 0)
* err;
* if ((x = xpath_first(xtop, nsc, "//symbol/foo")) != NULL) {
* ...
* }