"John J. Boyer" <john.bo...@abilitiessoft.com> writes:
> The document is xhtml with <head and <body inside the <HTML tag. The
> code is pasted below the line of dashes. The problem area starts with
> the line
>
> oldPrebSib = furbrl->prev;
>
> curBrlNode is defined and set outside this function Itcontains a
> braille translation, in this case of a MathML
> expression. This has already been placed in transNode. curbrlNode
> follows a <math tag, with its subtree. The math expression is supposed
> to be replaced by transNode and curBrlNode removed. When I trace through
> the code with gdb it appears to work properly. However, xmlDocDump does
> not produce anything except the <head subtree within the <HTML tag
> of the xhtml document.
> In other words, the body is completely missing. Suggestions? Thanks.
Can you give a complete example? I tried with code below and it seems to
work:
brail.c:
=====================
#include <stdio.h>
#include <libxml/parser.h>
#include <libxml/xpath.h>
#include <libxml/tree.h>
#include <libxml/xpath.h>
static xmlNode *curBrlNode, *afterCurBrl;
static int useAfterCurBrl;
static int
finishBrlNode ()
{
/* int wcLength; */
/* int utf8Length; */
/* unsigned char *transText = (unsigned char *) ud->outbuf2; */
xmlNode *transNode;
xmlNode *linkedTransNode;
xmlNode *oldPrevSib;
xmlNode *oldBrlNode;
/* wcLength = ud->outbuf1_len_so_far; */
/* utf8Length = ud->outbuf2_len; */
/* wc_string_to_utf8 (ud->outbuf1, &wcLength, transText, &utf8Length); */
xmlChar transText[] = "the translation...";
transNode = xmlNewText (transText);
oldPrevSib = curBrlNode->prev;
if (oldPrevSib != NULL)
{
xmlUnlinkNode (oldPrevSib);
xmlFreeNode (oldPrevSib);
}
linkedTransNode = xmlAddPrevSibling (curBrlNode, transNode);
afterCurBrl = curBrlNode->next;
useAfterCurBrl = 1;
oldBrlNode = curBrlNode;
xmlUnlinkNode (oldBrlNode);
xmlFreeNode (oldBrlNode);
return 1;
}
int main()
{
xmlDocPtr doc = xmlReadFile("brail.xml", NULL, XML_PARSE_NOBLANKS);
xmlXPathContextPtr ctxt = xmlXPathNewContext(doc);
curBrlNode = xmlXPathEval("//cur-brl", ctxt)->nodesetval->nodeTab[0];
finishBrlNode();
xmlDocDump(stdout, doc);
return 0;
}
================
brail.xml:
======================
<html>
<body>
<beginning> filler </beginning>
<math>
<subtree> subtree of math </subtree>
</math>
<cur-brl>
<subtree> subtree of cur-brl </subtree>
</cur-brl>
<trailing-stuff> end filler </trailing-stuff>
</body>
</html>
=================
Output:
====================
<?xml version="1.0"?>
<html><body><beginning> filler </beginning>the translation...<trailing-stuff>
end filler </trailing-stuff></body></html>
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