[xml] gdb hint and debugXML.c patch

["Oleg A. Paraschenko" <olpa xmlhack ru>]

  Hello,

  probably it's well known, but I'd like to share useful gdb
settings. From my ~/.gdbinit:

<code>
define xp
call xmlDebugDumpNode(stdout, $arg0, 0)
end
document xp
Executes xmlDebugDumpNode(stdout, arg, 0).
Use also:
xmlDebugDumpOneNode
xmlDebugDumpNodeList
xmlDebugDumpDocument
end
</code>

  Now, debugging in gdb, it's possible to dump a variable as
an XML node:

<screen>
(gdb) cont
Breakpoint 2, xmlFreeNode (cur=0x8051760) at tree.c:3333
3333        xmlDictPtr dict = NULL;
(gdb) help xp
Executes xmlDebugDumpNode(stdout, arg, 0).
Use also:
xmlDebugDumpOneNode
xmlDebugDumpNodeList
xmlDebugDumpDocument
(gdb) xp cur
TEXT
  content= 
test.xsl:0: error : Node has no parent
</screen>

---

  Unfortunately, xmlDebugDumpNode crashes when the argument
is a namespace node. The following fixes the problem.

$ cvs diff debugXML.c
Index: debugXML.c
===================================================================
RCS file: /cvs/gnome/libxml2/debugXML.c,v
retrieving revision 1.110
diff -r1.110 debugXML.c
1068c1068
<     if ((node->children != NULL) && (node->type != XML_ENTITY_REF_NODE)) {
---
>     if ((node->type != XML_NAMESPACE_DECL) && (node->children != NULL) && (node->type != 
> XML_ENTITY_REF_NODE)) {



-- 
Oleg Paraschenko  olpa@ http://xmlhack.ru/  XML news in Russian
http://uucode.com/blog/  Generative Programming, XML, TeX, Scheme