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Daniel Veillard1566d3a1999-07-15 14:24:29 +00001<HTML
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3><TITLE
4>xpath</TITLE
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35>Gnome XML Library Reference Manual</FONT
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94WIDTH="25%"
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97>&nbsp;</TD
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99></TABLE
100></DIV
101><H1
102>xpath</H1
103><DIV
104CLASS="REFNAMEDIV"
105><A
Daniel Veillardd2d38e91999-08-30 11:42:36 +0000106NAME="AEN7665"
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000107></A
108><H2
109>Name</H2
110>xpath &#8212; </DIV
111><DIV
112CLASS="REFSYNOPSISDIV"
113><A
Daniel Veillardd2d38e91999-08-30 11:42:36 +0000114NAME="AEN7668"
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000115></A
116><H2
117>Synopsis</H2
118><TABLE
119BORDER="0"
120BGCOLOR="#D6E8FF"
121WIDTH="100%"
122CELLPADDING="6"
123><TR
124><TD
125><PRE
126CLASS="SYNOPSIS"
127>&#13;
128
129#define <A
130HREF="gnome-xml-xpath.html#XPATH-UNDEFINED"
131>XPATH_UNDEFINED</A
132>
133#define <A
134HREF="gnome-xml-xpath.html#XPATH-NODESET"
135>XPATH_NODESET</A
136>
137#define <A
138HREF="gnome-xml-xpath.html#XPATH-BOOLEAN"
139>XPATH_BOOLEAN</A
140>
141#define <A
142HREF="gnome-xml-xpath.html#XPATH-NUMBER"
143>XPATH_NUMBER</A
144>
145#define <A
146HREF="gnome-xml-xpath.html#XPATH-STRING"
147>XPATH_STRING</A
148>
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000149void (<A
150HREF="gnome-xml-xpath.html#XMLXPATHFUNCTION"
151>*xmlXPathFunction</A
152>) (<GTKDOCLINK
153HREF="XMLXPATHPARSERCONTEXTPTR"
154>xmlXPathParserContextPtr</GTKDOCLINK
155> ctxt,
156 int nargs);
157<GTKDOCLINK
158HREF="XMLXPATHCONTEXTPTR"
159>xmlXPathContextPtr</GTKDOCLINK
160> <A
161HREF="gnome-xml-xpath.html#XMLXPATHNEWCONTEXT"
162>xmlXPathNewContext</A
163> (<A
164HREF="gnome-xml-tree.html#XMLDOCPTR"
165>xmlDocPtr</A
166> doc,
167 void *variables,
Daniel Veillardd2d38e91999-08-30 11:42:36 +0000168 void *functions);
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000169void <A
170HREF="gnome-xml-xpath.html#XMLXPATHFREECONTEXT"
171>xmlXPathFreeContext</A
172> (<GTKDOCLINK
173HREF="XMLXPATHCONTEXTPTR"
174>xmlXPathContextPtr</GTKDOCLINK
175> ctxt);
176<GTKDOCLINK
177HREF="XMLXPATHOBJECTPTR"
178>xmlXPathObjectPtr</GTKDOCLINK
179> <A
180HREF="gnome-xml-xpath.html#XMLXPATHEVAL"
181>xmlXPathEval</A
182> (const <A
183HREF="gnome-xml-tree.html#CHAR"
184>CHAR</A
185> *str,
186 <GTKDOCLINK
187HREF="XMLXPATHCONTEXTPTR"
188>xmlXPathContextPtr</GTKDOCLINK
189> ctxt);
190void <A
191HREF="gnome-xml-xpath.html#XMLXPATHFREEOBJECT"
192>xmlXPathFreeObject</A
193> (<GTKDOCLINK
194HREF="XMLXPATHOBJECTPTR"
195>xmlXPathObjectPtr</GTKDOCLINK
196> obj);
197<GTKDOCLINK
198HREF="XMLXPATHOBJECTPTR"
199>xmlXPathObjectPtr</GTKDOCLINK
200> <A
201HREF="gnome-xml-xpath.html#XMLXPATHEVALEXPRESSION"
202>xmlXPathEvalExpression</A
203> (const <A
204HREF="gnome-xml-tree.html#CHAR"
205>CHAR</A
206> *str,
207 <GTKDOCLINK
208HREF="XMLXPATHCONTEXTPTR"
209>xmlXPathContextPtr</GTKDOCLINK
210> ctxt);</PRE
211></TD
212></TR
213></TABLE
214></DIV
215><DIV
216CLASS="REFSECT1"
217><A
Daniel Veillardd2d38e91999-08-30 11:42:36 +0000218NAME="AEN7693"
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000219></A
220><H2
221>Description</H2
222><P
223></P
224></DIV
225><DIV
226CLASS="REFSECT1"
227><A
Daniel Veillardd2d38e91999-08-30 11:42:36 +0000228NAME="AEN7696"
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000229></A
230><H2
231>Details</H2
232><DIV
233CLASS="REFSECT2"
234><A
Daniel Veillardd2d38e91999-08-30 11:42:36 +0000235NAME="AEN7698"
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000236></A
237><H3
238><A
239NAME="XPATH-UNDEFINED"
240></A
241>XPATH_UNDEFINED</H3
242><TABLE
243BORDER="0"
244BGCOLOR="#D6E8FF"
245WIDTH="100%"
246CELLPADDING="6"
247><TR
248><TD
249><PRE
250CLASS="PROGRAMLISTING"
Daniel Veillardb05deb71999-08-10 19:04:08 +0000251>#define XPATH_UNDEFINED</PRE
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000252></TD
253></TR
254></TABLE
255><P
256></P
257></DIV
258><HR><DIV
259CLASS="REFSECT2"
260><A
Daniel Veillardd2d38e91999-08-30 11:42:36 +0000261NAME="AEN7703"
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000262></A
263><H3
264><A
265NAME="XPATH-NODESET"
266></A
267>XPATH_NODESET</H3
268><TABLE
269BORDER="0"
270BGCOLOR="#D6E8FF"
271WIDTH="100%"
272CELLPADDING="6"
273><TR
274><TD
275><PRE
276CLASS="PROGRAMLISTING"
Daniel Veillardb05deb71999-08-10 19:04:08 +0000277>#define XPATH_NODESET</PRE
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000278></TD
279></TR
280></TABLE
281><P
282></P
283></DIV
284><HR><DIV
285CLASS="REFSECT2"
286><A
Daniel Veillardd2d38e91999-08-30 11:42:36 +0000287NAME="AEN7708"
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000288></A
289><H3
290><A
291NAME="XPATH-BOOLEAN"
292></A
293>XPATH_BOOLEAN</H3
294><TABLE
295BORDER="0"
296BGCOLOR="#D6E8FF"
297WIDTH="100%"
298CELLPADDING="6"
299><TR
300><TD
301><PRE
302CLASS="PROGRAMLISTING"
Daniel Veillardb05deb71999-08-10 19:04:08 +0000303>#define XPATH_BOOLEAN</PRE
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000304></TD
305></TR
306></TABLE
307><P
308></P
309></DIV
310><HR><DIV
311CLASS="REFSECT2"
312><A
Daniel Veillardd2d38e91999-08-30 11:42:36 +0000313NAME="AEN7713"
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000314></A
315><H3
316><A
317NAME="XPATH-NUMBER"
318></A
319>XPATH_NUMBER</H3
320><TABLE
321BORDER="0"
322BGCOLOR="#D6E8FF"
323WIDTH="100%"
324CELLPADDING="6"
325><TR
326><TD
327><PRE
328CLASS="PROGRAMLISTING"
Daniel Veillardb05deb71999-08-10 19:04:08 +0000329>#define XPATH_NUMBER</PRE
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000330></TD
331></TR
332></TABLE
333><P
334></P
335></DIV
336><HR><DIV
337CLASS="REFSECT2"
338><A
Daniel Veillardd2d38e91999-08-30 11:42:36 +0000339NAME="AEN7718"
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000340></A
341><H3
342><A
343NAME="XPATH-STRING"
344></A
345>XPATH_STRING</H3
346><TABLE
347BORDER="0"
348BGCOLOR="#D6E8FF"
349WIDTH="100%"
350CELLPADDING="6"
351><TR
352><TD
353><PRE
354CLASS="PROGRAMLISTING"
Daniel Veillardb05deb71999-08-10 19:04:08 +0000355>#define XPATH_STRING</PRE
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000356></TD
357></TR
358></TABLE
359><P
360></P
361></DIV
362><HR><DIV
363CLASS="REFSECT2"
364><A
Daniel Veillardd2d38e91999-08-30 11:42:36 +0000365NAME="AEN7723"
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000366></A
367><H3
368><A
369NAME="XMLXPATHFUNCTION"
370></A
371>xmlXPathFunction ()</H3
372><TABLE
373BORDER="0"
374BGCOLOR="#D6E8FF"
375WIDTH="100%"
376CELLPADDING="6"
377><TR
378><TD
379><PRE
380CLASS="PROGRAMLISTING"
381>void (*xmlXPathFunction) (<GTKDOCLINK
382HREF="XMLXPATHPARSERCONTEXTPTR"
383>xmlXPathParserContextPtr</GTKDOCLINK
384> ctxt,
385 int nargs);</PRE
386></TD
387></TR
388></TABLE
389><P
390></P
391><DIV
392CLASS="INFORMALTABLE"
393><P
394></P
395><TABLE
396BORDER="0"
397WIDTH="100%"
398BGCOLOR="#FFD0D0"
399CELLSPACING="0"
400CELLPADDING="4"
401CLASS="CALSTABLE"
402><TR
403><TD
404WIDTH="20%"
405ALIGN="RIGHT"
406VALIGN="TOP"
407><TT
408CLASS="PARAMETER"
409><I
410>ctxt</I
411></TT
412>&nbsp;:</TD
413><TD
414WIDTH="80%"
415ALIGN="LEFT"
416VALIGN="TOP"
417>&nbsp;</TD
418></TR
419><TR
420><TD
421WIDTH="20%"
422ALIGN="RIGHT"
423VALIGN="TOP"
424><TT
425CLASS="PARAMETER"
426><I
427>nargs</I
428></TT
429>&nbsp;:</TD
430><TD
431WIDTH="80%"
432ALIGN="LEFT"
433VALIGN="TOP"
434>&nbsp;</TD
435></TR
436></TABLE
437><P
438></P
439></DIV
440></DIV
441><HR><DIV
442CLASS="REFSECT2"
443><A
Daniel Veillardd2d38e91999-08-30 11:42:36 +0000444NAME="AEN7742"
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000445></A
446><H3
447><A
448NAME="XMLXPATHNEWCONTEXT"
449></A
450>xmlXPathNewContext ()</H3
451><TABLE
452BORDER="0"
453BGCOLOR="#D6E8FF"
454WIDTH="100%"
455CELLPADDING="6"
456><TR
457><TD
458><PRE
459CLASS="PROGRAMLISTING"
460><GTKDOCLINK
461HREF="XMLXPATHCONTEXTPTR"
462>xmlXPathContextPtr</GTKDOCLINK
463> xmlXPathNewContext (<A
464HREF="gnome-xml-tree.html#XMLDOCPTR"
465>xmlDocPtr</A
466> doc,
467 void *variables,
Daniel Veillardd2d38e91999-08-30 11:42:36 +0000468 void *functions);</PRE
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000469></TD
470></TR
471></TABLE
472><P
473>Create a new xmlXPathContext</P
474><P
475></P
476><DIV
477CLASS="INFORMALTABLE"
478><P
479></P
480><TABLE
481BORDER="0"
482WIDTH="100%"
483BGCOLOR="#FFD0D0"
484CELLSPACING="0"
485CELLPADDING="4"
486CLASS="CALSTABLE"
487><TR
488><TD
489WIDTH="20%"
490ALIGN="RIGHT"
491VALIGN="TOP"
492><TT
493CLASS="PARAMETER"
494><I
495>doc</I
496></TT
497>&nbsp;:</TD
498><TD
499WIDTH="80%"
500ALIGN="LEFT"
501VALIGN="TOP"
Daniel Veillardb05deb71999-08-10 19:04:08 +0000502>&nbsp;</TD
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000503></TR
504><TR
505><TD
506WIDTH="20%"
507ALIGN="RIGHT"
508VALIGN="TOP"
509><TT
510CLASS="PARAMETER"
511><I
512>variables</I
513></TT
514>&nbsp;:</TD
515><TD
516WIDTH="80%"
517ALIGN="LEFT"
518VALIGN="TOP"
Daniel Veillardb05deb71999-08-10 19:04:08 +0000519>&nbsp;</TD
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000520></TR
521><TR
522><TD
523WIDTH="20%"
524ALIGN="RIGHT"
525VALIGN="TOP"
526><TT
527CLASS="PARAMETER"
528><I
529>functions</I
530></TT
531>&nbsp;:</TD
532><TD
533WIDTH="80%"
534ALIGN="LEFT"
535VALIGN="TOP"
Daniel Veillardb05deb71999-08-10 19:04:08 +0000536>&nbsp;</TD
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000537></TR
538><TR
539><TD
540WIDTH="20%"
541ALIGN="RIGHT"
542VALIGN="TOP"
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000543><I
544CLASS="EMPHASIS"
545>Returns</I
546> :</TD
547><TD
548WIDTH="80%"
549ALIGN="LEFT"
550VALIGN="TOP"
Daniel Veillardb05deb71999-08-10 19:04:08 +0000551>&nbsp;</TD
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000552></TR
553></TABLE
554><P
555></P
556></DIV
557></DIV
558><HR><DIV
559CLASS="REFSECT2"
560><A
Daniel Veillardd2d38e91999-08-30 11:42:36 +0000561NAME="AEN7771"
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000562></A
563><H3
564><A
565NAME="XMLXPATHFREECONTEXT"
566></A
567>xmlXPathFreeContext ()</H3
568><TABLE
569BORDER="0"
570BGCOLOR="#D6E8FF"
571WIDTH="100%"
572CELLPADDING="6"
573><TR
574><TD
575><PRE
576CLASS="PROGRAMLISTING"
577>void xmlXPathFreeContext (<GTKDOCLINK
578HREF="XMLXPATHCONTEXTPTR"
579>xmlXPathContextPtr</GTKDOCLINK
580> ctxt);</PRE
581></TD
582></TR
583></TABLE
584><P
585>Free up an xmlXPathContext</P
586><P
587></P
588><DIV
589CLASS="INFORMALTABLE"
590><P
591></P
592><TABLE
593BORDER="0"
594WIDTH="100%"
595BGCOLOR="#FFD0D0"
596CELLSPACING="0"
597CELLPADDING="4"
598CLASS="CALSTABLE"
599><TR
600><TD
601WIDTH="20%"
602ALIGN="RIGHT"
603VALIGN="TOP"
604><TT
605CLASS="PARAMETER"
606><I
607>ctxt</I
608></TT
609>&nbsp;:</TD
610><TD
611WIDTH="80%"
612ALIGN="LEFT"
613VALIGN="TOP"
Daniel Veillardb05deb71999-08-10 19:04:08 +0000614>&nbsp;</TD
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000615></TR
616></TABLE
617><P
618></P
619></DIV
620></DIV
621><HR><DIV
622CLASS="REFSECT2"
623><A
Daniel Veillardd2d38e91999-08-30 11:42:36 +0000624NAME="AEN7787"
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000625></A
626><H3
627><A
628NAME="XMLXPATHEVAL"
629></A
630>xmlXPathEval ()</H3
631><TABLE
632BORDER="0"
633BGCOLOR="#D6E8FF"
634WIDTH="100%"
635CELLPADDING="6"
636><TR
637><TD
638><PRE
639CLASS="PROGRAMLISTING"
640><GTKDOCLINK
641HREF="XMLXPATHOBJECTPTR"
642>xmlXPathObjectPtr</GTKDOCLINK
643> xmlXPathEval (const <A
644HREF="gnome-xml-tree.html#CHAR"
645>CHAR</A
646> *str,
647 <GTKDOCLINK
648HREF="XMLXPATHCONTEXTPTR"
649>xmlXPathContextPtr</GTKDOCLINK
650> ctxt);</PRE
651></TD
652></TR
653></TABLE
654><P
655>Evaluate the XPath Location Path in the given context.</P
656><P
657></P
658><DIV
659CLASS="INFORMALTABLE"
660><P
661></P
662><TABLE
663BORDER="0"
664WIDTH="100%"
665BGCOLOR="#FFD0D0"
666CELLSPACING="0"
667CELLPADDING="4"
668CLASS="CALSTABLE"
669><TR
670><TD
671WIDTH="20%"
672ALIGN="RIGHT"
673VALIGN="TOP"
674><TT
675CLASS="PARAMETER"
676><I
677>str</I
678></TT
679>&nbsp;:</TD
680><TD
681WIDTH="80%"
682ALIGN="LEFT"
683VALIGN="TOP"
Daniel Veillardb05deb71999-08-10 19:04:08 +0000684>&nbsp;</TD
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000685></TR
686><TR
687><TD
688WIDTH="20%"
689ALIGN="RIGHT"
690VALIGN="TOP"
691><TT
692CLASS="PARAMETER"
693><I
694>ctxt</I
695></TT
696>&nbsp;:</TD
697><TD
698WIDTH="80%"
699ALIGN="LEFT"
700VALIGN="TOP"
Daniel Veillardb05deb71999-08-10 19:04:08 +0000701>&nbsp;</TD
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000702></TR
703><TR
704><TD
705WIDTH="20%"
706ALIGN="RIGHT"
707VALIGN="TOP"
708><I
709CLASS="EMPHASIS"
710>Returns</I
711> :</TD
712><TD
713WIDTH="80%"
714ALIGN="LEFT"
715VALIGN="TOP"
Daniel Veillardb05deb71999-08-10 19:04:08 +0000716>&nbsp;</TD
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000717></TR
718></TABLE
719><P
720></P
721></DIV
722></DIV
723><HR><DIV
724CLASS="REFSECT2"
725><A
Daniel Veillardd2d38e91999-08-30 11:42:36 +0000726NAME="AEN7813"
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000727></A
728><H3
729><A
730NAME="XMLXPATHFREEOBJECT"
731></A
732>xmlXPathFreeObject ()</H3
733><TABLE
734BORDER="0"
735BGCOLOR="#D6E8FF"
736WIDTH="100%"
737CELLPADDING="6"
738><TR
739><TD
740><PRE
741CLASS="PROGRAMLISTING"
742>void xmlXPathFreeObject (<GTKDOCLINK
743HREF="XMLXPATHOBJECTPTR"
744>xmlXPathObjectPtr</GTKDOCLINK
745> obj);</PRE
746></TD
747></TR
748></TABLE
749><P
750>Free up an xmlXPathObjectPtr object.</P
751><P
752></P
753><DIV
754CLASS="INFORMALTABLE"
755><P
756></P
757><TABLE
758BORDER="0"
759WIDTH="100%"
760BGCOLOR="#FFD0D0"
761CELLSPACING="0"
762CELLPADDING="4"
763CLASS="CALSTABLE"
764><TR
765><TD
766WIDTH="20%"
767ALIGN="RIGHT"
768VALIGN="TOP"
769><TT
770CLASS="PARAMETER"
771><I
772>obj</I
773></TT
774>&nbsp;:</TD
775><TD
776WIDTH="80%"
777ALIGN="LEFT"
778VALIGN="TOP"
Daniel Veillardb05deb71999-08-10 19:04:08 +0000779>&nbsp;</TD
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000780></TR
781></TABLE
782><P
783></P
784></DIV
785></DIV
786><HR><DIV
787CLASS="REFSECT2"
788><A
Daniel Veillardd2d38e91999-08-30 11:42:36 +0000789NAME="AEN7829"
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000790></A
791><H3
792><A
793NAME="XMLXPATHEVALEXPRESSION"
794></A
795>xmlXPathEvalExpression ()</H3
796><TABLE
797BORDER="0"
798BGCOLOR="#D6E8FF"
799WIDTH="100%"
800CELLPADDING="6"
801><TR
802><TD
803><PRE
804CLASS="PROGRAMLISTING"
805><GTKDOCLINK
806HREF="XMLXPATHOBJECTPTR"
807>xmlXPathObjectPtr</GTKDOCLINK
808> xmlXPathEvalExpression (const <A
809HREF="gnome-xml-tree.html#CHAR"
810>CHAR</A
811> *str,
812 <GTKDOCLINK
813HREF="XMLXPATHCONTEXTPTR"
814>xmlXPathContextPtr</GTKDOCLINK
815> ctxt);</PRE
816></TD
817></TR
818></TABLE
819><P
820>Evaluate the XPath expression in the given context.</P
821><P
822></P
823><DIV
824CLASS="INFORMALTABLE"
825><P
826></P
827><TABLE
828BORDER="0"
829WIDTH="100%"
830BGCOLOR="#FFD0D0"
831CELLSPACING="0"
832CELLPADDING="4"
833CLASS="CALSTABLE"
834><TR
835><TD
836WIDTH="20%"
837ALIGN="RIGHT"
838VALIGN="TOP"
839><TT
840CLASS="PARAMETER"
841><I
842>str</I
843></TT
844>&nbsp;:</TD
845><TD
846WIDTH="80%"
847ALIGN="LEFT"
848VALIGN="TOP"
Daniel Veillardb05deb71999-08-10 19:04:08 +0000849>&nbsp;</TD
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000850></TR
851><TR
852><TD
853WIDTH="20%"
854ALIGN="RIGHT"
855VALIGN="TOP"
856><TT
857CLASS="PARAMETER"
858><I
859>ctxt</I
860></TT
861>&nbsp;:</TD
862><TD
863WIDTH="80%"
864ALIGN="LEFT"
865VALIGN="TOP"
Daniel Veillardb05deb71999-08-10 19:04:08 +0000866>&nbsp;</TD
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000867></TR
868><TR
869><TD
870WIDTH="20%"
871ALIGN="RIGHT"
872VALIGN="TOP"
873><I
874CLASS="EMPHASIS"
875>Returns</I
876> :</TD
877><TD
878WIDTH="80%"
879ALIGN="LEFT"
880VALIGN="TOP"
Daniel Veillardb05deb71999-08-10 19:04:08 +0000881>&nbsp;</TD
Daniel Veillard1566d3a1999-07-15 14:24:29 +0000882></TR
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902><A
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921HREF="book1.html"
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926>Home</B
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941HREF="libxml.html"
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945><B
946>Up</B
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951></TD
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955ALIGN="right"
956>&nbsp;</TD
957></TR
958><TR
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960COLSPAN="2"
961ALIGN="left"
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963COLOR="#FFFFFF"
964SIZE="3"
965><B
966>HTMLtree</B
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