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xmllint: Support --xpath --debug

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Dump compiled expression if --debug was supplied.
This commit is contained in:
Nick Wellnhofer 2025-01-04 22:52:19 +01:00
parent f22707f42b
commit a5be2cc303
1 changed files with 27 additions and 7 deletions
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34
xmllint.c
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@ -43,6 +43,7 @@
#include <libxml/HTMLtree.h>
#include <libxml/tree.h>
#include <libxml/xpath.h>
#include <libxml/xpathInternals.h>
#include <libxml/debugXML.h>
#include <libxml/xmlerror.h>
#ifdef LIBXML_XINCLUDE_ENABLED
@ -1875,26 +1876,45 @@ static void doXPathDump(xmlXPathObjectPtr cur) {
}
static void doXPathQuery(xmlDocPtr doc, const char *query) {
xmlXPathContextPtr ctxt;
xmlXPathObjectPtr res;
xmlXPathContextPtr ctxt = NULL;
xmlXPathCompExprPtr comp = NULL;
xmlXPathObjectPtr res = NULL;
ctxt = xmlXPathNewContext(doc);
if (ctxt == NULL) {
fprintf(ERR_STREAM, "Out of memory for XPath\n");
progresult = XMLLINT_ERR_MEM;
return;
goto error;
}
ctxt->node = (xmlNodePtr) doc;
res = xmlXPathEval(BAD_CAST query, ctxt);
xmlXPathFreeContext(ctxt);
comp = xmlXPathCtxtCompile(ctxt, BAD_CAST query);
if (comp == NULL) {
fprintf(ERR_STREAM, "XPath compilation failure\n");
progresult = XMLLINT_ERR_XPATH;
goto error;
}
#ifdef LIBXML_DEBUG_ENABLED
if (debug) {
xmlXPathDebugDumpCompExpr(stdout, comp, 0);
printf("\n");
}
#endif
ctxt->node = (xmlNodePtr) doc;
res = xmlXPathCompiledEval(comp, ctxt);
if (res == NULL) {
fprintf(ERR_STREAM, "XPath evaluation failure\n");
progresult = XMLLINT_ERR_XPATH;
return;
goto error;
}
doXPathDump(res);
error:
xmlXPathFreeObject(res);
xmlXPathFreeCompExpr(comp);
xmlXPathFreeContext(ctxt);
}
#endif /* LIBXML_XPATH_ENABLED */