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libxslt/doc/html/libxslt-functions.html
Daniel Veillard 83c5fa70fd Added libxslt-decl.txt, ran make rebuild, Daniel
2002-02-05 21:28:22 +00:00

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<HTML
><HEAD
><TITLE
>functions</TITLE
><META
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></DIV
><H1
><A
NAME="LIBXSLT-FUNCTIONS"
>functions</A
></H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN89"
></A
><H2
>Name</H2
>functions&nbsp;--&nbsp;</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN92"
></A
><H2
>Synopsis</H2
><TABLE
BORDER="0"
BGCOLOR="#D6E8FF"
WIDTH="100%"
CELLPADDING="6"
><TR
><TD
><PRE
CLASS="SYNOPSIS"
>&#13;
#define <A
HREF="libxslt-functions.html#XSLT-REGISTER-FUNCTION-LOOKUP-CAPS"
>XSLT_REGISTER_FUNCTION_LOOKUP</A
> (ctxt)
<GTKDOCLINK
HREF="XMLXPATHFUNCTION"
>xmlXPathFunction</GTKDOCLINK
> <A
HREF="libxslt-functions.html#XSLTXPATHFUNCTIONLOOKUP"
>xsltXPathFunctionLookup</A
> (<GTKDOCLINK
HREF="XMLXPATHCONTEXTPTR"
>xmlXPathContextPtr</GTKDOCLINK
> ctxt,
const <GTKDOCLINK
HREF="XMLCHAR"
>xmlChar</GTKDOCLINK
> *name,
const <GTKDOCLINK
HREF="XMLCHAR"
>xmlChar</GTKDOCLINK
> *ns_uri);
void <A
HREF="libxslt-functions.html#XSLTDOCUMENTFUNCTION"
>xsltDocumentFunction</A
> (<GTKDOCLINK
HREF="XMLXPATHPARSERCONTEXTPTR"
>xmlXPathParserContextPtr</GTKDOCLINK
> ctxt,
int nargs);
void <A
HREF="libxslt-functions.html#XSLTKEYFUNCTION"
>xsltKeyFunction</A
> (<GTKDOCLINK
HREF="XMLXPATHPARSERCONTEXTPTR"
>xmlXPathParserContextPtr</GTKDOCLINK
> ctxt,
int nargs);
void <A
HREF="libxslt-functions.html#XSLTUNPARSEDENTITYURIFUNCTION"
>xsltUnparsedEntityURIFunction</A
> (<GTKDOCLINK
HREF="XMLXPATHPARSERCONTEXTPTR"
>xmlXPathParserContextPtr</GTKDOCLINK
> ctxt,
int nargs);
void <A
HREF="libxslt-functions.html#XSLTFORMATNUMBERFUNCTION"
>xsltFormatNumberFunction</A
> (<GTKDOCLINK
HREF="XMLXPATHPARSERCONTEXTPTR"
>xmlXPathParserContextPtr</GTKDOCLINK
> ctxt,
int nargs);
void <A
HREF="libxslt-functions.html#XSLTGENERATEIDFUNCTION"
>xsltGenerateIdFunction</A
> (<GTKDOCLINK
HREF="XMLXPATHPARSERCONTEXTPTR"
>xmlXPathParserContextPtr</GTKDOCLINK
> ctxt,
int nargs);
void <A
HREF="libxslt-functions.html#XSLTSYSTEMPROPERTYFUNCTION"
>xsltSystemPropertyFunction</A
> (<GTKDOCLINK
HREF="XMLXPATHPARSERCONTEXTPTR"
>xmlXPathParserContextPtr</GTKDOCLINK
> ctxt,
int nargs);
void <A
HREF="libxslt-functions.html#XSLTELEMENTAVAILABLEFUNCTION"
>xsltElementAvailableFunction</A
> (<GTKDOCLINK
HREF="XMLXPATHPARSERCONTEXTPTR"
>xmlXPathParserContextPtr</GTKDOCLINK
> ctxt,
int nargs);
void <A
HREF="libxslt-functions.html#XSLTFUNCTIONAVAILABLEFUNCTION"
>xsltFunctionAvailableFunction</A
> (<GTKDOCLINK
HREF="XMLXPATHPARSERCONTEXTPTR"
>xmlXPathParserContextPtr</GTKDOCLINK
> ctxt,
int nargs);
void <A
HREF="libxslt-functions.html#XSLTREGISTERALLFUNCTIONS"
>xsltRegisterAllFunctions</A
> (<GTKDOCLINK
HREF="XMLXPATHCONTEXTPTR"
>xmlXPathContextPtr</GTKDOCLINK
> ctxt);</PRE
></TD
></TR
></TABLE
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN119"
></A
><H2
>Description</H2
><P
></P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN122"
></A
><H2
>Details</H2
><DIV
CLASS="REFSECT2"
><A
NAME="AEN124"
></A
><H3
><A
NAME="XSLT-REGISTER-FUNCTION-LOOKUP-CAPS"
></A
>&#62;XSLT_REGISTER_FUNCTION_LOOKUP()</H3
><TABLE
BORDER="0"
BGCOLOR="#D6E8FF"
WIDTH="100%"
CELLPADDING="6"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>#define XSLT_REGISTER_FUNCTION_LOOKUP(ctxt)</PRE
></TD
></TR
></TABLE
><P
>registering macro, not general purpose at all but used in different modules</P
><P
></P
><DIV
CLASS="INFORMALTABLE"
><A
NAME="AEN130"
></A
><P
></P
><TABLE
BORDER="0"
WIDTH="100%"
BGCOLOR="#FFD0D0"
CELLSPACING="0"
CELLPADDING="4"
CLASS="CALSTABLE"
><TBODY
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>ctxt</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
>&nbsp;</TD
></TR
></TBODY
></TABLE
><P
></P
></DIV
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN139"
></A
><H3
><A
NAME="XSLTXPATHFUNCTIONLOOKUP"
></A
>&#62;xsltXPathFunctionLookup ()</H3
><TABLE
BORDER="0"
BGCOLOR="#D6E8FF"
WIDTH="100%"
CELLPADDING="6"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
><GTKDOCLINK
HREF="XMLXPATHFUNCTION"
>xmlXPathFunction</GTKDOCLINK
> xsltXPathFunctionLookup (<GTKDOCLINK
HREF="XMLXPATHCONTEXTPTR"
>xmlXPathContextPtr</GTKDOCLINK
> ctxt,
const <GTKDOCLINK
HREF="XMLCHAR"
>xmlChar</GTKDOCLINK
> *name,
const <GTKDOCLINK
HREF="XMLCHAR"
>xmlChar</GTKDOCLINK
> *ns_uri);</PRE
></TD
></TR
></TABLE
><P
>This is the entry point when a function is needed by the XPath
interpretor.</P
><P
></P
><DIV
CLASS="INFORMALTABLE"
><A
NAME="AEN149"
></A
><P
></P
><TABLE
BORDER="0"
WIDTH="100%"
BGCOLOR="#FFD0D0"
CELLSPACING="0"
CELLPADDING="4"
CLASS="CALSTABLE"
><TBODY
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>ctxt</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> a void * but the XSLT transformation context actually</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>name</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the function name</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>ns_uri</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the function namespace URI</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><I
CLASS="EMPHASIS"
>Returns</I
> :</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
>the callback function or NULL if not found</TD
></TR
></TBODY
></TABLE
><P
></P
></DIV
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN170"
></A
><H3
><A
NAME="XSLTDOCUMENTFUNCTION"
></A
>&#62;xsltDocumentFunction ()</H3
><TABLE
BORDER="0"
BGCOLOR="#D6E8FF"
WIDTH="100%"
CELLPADDING="6"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>void xsltDocumentFunction (<GTKDOCLINK
HREF="XMLXPATHPARSERCONTEXTPTR"
>xmlXPathParserContextPtr</GTKDOCLINK
> ctxt,
int nargs);</PRE
></TD
></TR
></TABLE
><P
>Implement the <GTKDOCLINK
HREF="DOCUMENT"
>document</GTKDOCLINK
>() XSLT function
node-set document(object, node-set?)</P
><P
></P
><DIV
CLASS="INFORMALTABLE"
><A
NAME="AEN178"
></A
><P
></P
><TABLE
BORDER="0"
WIDTH="100%"
BGCOLOR="#FFD0D0"
CELLSPACING="0"
CELLPADDING="4"
CLASS="CALSTABLE"
><TBODY
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>ctxt</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the XPath Parser context</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>nargs</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the number of arguments</TD
></TR
></TBODY
></TABLE
><P
></P
></DIV
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN191"
></A
><H3
><A
NAME="XSLTKEYFUNCTION"
></A
>&#62;xsltKeyFunction ()</H3
><TABLE
BORDER="0"
BGCOLOR="#D6E8FF"
WIDTH="100%"
CELLPADDING="6"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>void xsltKeyFunction (<GTKDOCLINK
HREF="XMLXPATHPARSERCONTEXTPTR"
>xmlXPathParserContextPtr</GTKDOCLINK
> ctxt,
int nargs);</PRE
></TD
></TR
></TABLE
><P
>Implement the <GTKDOCLINK
HREF="KEY"
>key</GTKDOCLINK
>() XSLT function
node-set key(string, object)</P
><P
></P
><DIV
CLASS="INFORMALTABLE"
><A
NAME="AEN199"
></A
><P
></P
><TABLE
BORDER="0"
WIDTH="100%"
BGCOLOR="#FFD0D0"
CELLSPACING="0"
CELLPADDING="4"
CLASS="CALSTABLE"
><TBODY
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>ctxt</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the XPath Parser context</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>nargs</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the number of arguments</TD
></TR
></TBODY
></TABLE
><P
></P
></DIV
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN212"
></A
><H3
><A
NAME="XSLTUNPARSEDENTITYURIFUNCTION"
></A
>&#62;xsltUnparsedEntityURIFunction ()</H3
><TABLE
BORDER="0"
BGCOLOR="#D6E8FF"
WIDTH="100%"
CELLPADDING="6"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>void xsltUnparsedEntityURIFunction (<GTKDOCLINK
HREF="XMLXPATHPARSERCONTEXTPTR"
>xmlXPathParserContextPtr</GTKDOCLINK
> ctxt,
int nargs);</PRE
></TD
></TR
></TABLE
><P
>Implement the unparsed-entity-<GTKDOCLINK
HREF="URI"
>uri</GTKDOCLINK
>() XSLT function
string unparsed-entity-uri(string)</P
><P
></P
><DIV
CLASS="INFORMALTABLE"
><A
NAME="AEN220"
></A
><P
></P
><TABLE
BORDER="0"
WIDTH="100%"
BGCOLOR="#FFD0D0"
CELLSPACING="0"
CELLPADDING="4"
CLASS="CALSTABLE"
><TBODY
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>ctxt</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the XPath Parser context</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>nargs</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the number of arguments</TD
></TR
></TBODY
></TABLE
><P
></P
></DIV
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN233"
></A
><H3
><A
NAME="XSLTFORMATNUMBERFUNCTION"
></A
>&#62;xsltFormatNumberFunction ()</H3
><TABLE
BORDER="0"
BGCOLOR="#D6E8FF"
WIDTH="100%"
CELLPADDING="6"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>void xsltFormatNumberFunction (<GTKDOCLINK
HREF="XMLXPATHPARSERCONTEXTPTR"
>xmlXPathParserContextPtr</GTKDOCLINK
> ctxt,
int nargs);</PRE
></TD
></TR
></TABLE
><P
>Implement the format-<GTKDOCLINK
HREF="NUMBER"
>number</GTKDOCLINK
>() XSLT function
string format-number(number, string, string?)</P
><P
></P
><DIV
CLASS="INFORMALTABLE"
><A
NAME="AEN241"
></A
><P
></P
><TABLE
BORDER="0"
WIDTH="100%"
BGCOLOR="#FFD0D0"
CELLSPACING="0"
CELLPADDING="4"
CLASS="CALSTABLE"
><TBODY
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>ctxt</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the XPath Parser context</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>nargs</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the number of arguments</TD
></TR
></TBODY
></TABLE
><P
></P
></DIV
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN254"
></A
><H3
><A
NAME="XSLTGENERATEIDFUNCTION"
></A
>&#62;xsltGenerateIdFunction ()</H3
><TABLE
BORDER="0"
BGCOLOR="#D6E8FF"
WIDTH="100%"
CELLPADDING="6"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>void xsltGenerateIdFunction (<GTKDOCLINK
HREF="XMLXPATHPARSERCONTEXTPTR"
>xmlXPathParserContextPtr</GTKDOCLINK
> ctxt,
int nargs);</PRE
></TD
></TR
></TABLE
><P
>Implement the generate-<GTKDOCLINK
HREF="ID"
>id</GTKDOCLINK
>() XSLT function
string generate-id(node-set?)</P
><P
></P
><DIV
CLASS="INFORMALTABLE"
><A
NAME="AEN262"
></A
><P
></P
><TABLE
BORDER="0"
WIDTH="100%"
BGCOLOR="#FFD0D0"
CELLSPACING="0"
CELLPADDING="4"
CLASS="CALSTABLE"
><TBODY
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>ctxt</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the XPath Parser context</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>nargs</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the number of arguments</TD
></TR
></TBODY
></TABLE
><P
></P
></DIV
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN275"
></A
><H3
><A
NAME="XSLTSYSTEMPROPERTYFUNCTION"
></A
>&#62;xsltSystemPropertyFunction ()</H3
><TABLE
BORDER="0"
BGCOLOR="#D6E8FF"
WIDTH="100%"
CELLPADDING="6"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>void xsltSystemPropertyFunction (<GTKDOCLINK
HREF="XMLXPATHPARSERCONTEXTPTR"
>xmlXPathParserContextPtr</GTKDOCLINK
> ctxt,
int nargs);</PRE
></TD
></TR
></TABLE
><P
>Implement the system-<GTKDOCLINK
HREF="PROPERTY"
>property</GTKDOCLINK
>() XSLT function
object system-property(string)</P
><P
></P
><DIV
CLASS="INFORMALTABLE"
><A
NAME="AEN283"
></A
><P
></P
><TABLE
BORDER="0"
WIDTH="100%"
BGCOLOR="#FFD0D0"
CELLSPACING="0"
CELLPADDING="4"
CLASS="CALSTABLE"
><TBODY
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>ctxt</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the XPath Parser context</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>nargs</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the number of arguments</TD
></TR
></TBODY
></TABLE
><P
></P
></DIV
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN296"
></A
><H3
><A
NAME="XSLTELEMENTAVAILABLEFUNCTION"
></A
>&#62;xsltElementAvailableFunction ()</H3
><TABLE
BORDER="0"
BGCOLOR="#D6E8FF"
WIDTH="100%"
CELLPADDING="6"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>void xsltElementAvailableFunction (<GTKDOCLINK
HREF="XMLXPATHPARSERCONTEXTPTR"
>xmlXPathParserContextPtr</GTKDOCLINK
> ctxt,
int nargs);</PRE
></TD
></TR
></TABLE
><P
>Implement the element-<GTKDOCLINK
HREF="AVAILABLE"
>available</GTKDOCLINK
>() XSLT function
boolean element-available(string)</P
><P
></P
><DIV
CLASS="INFORMALTABLE"
><A
NAME="AEN304"
></A
><P
></P
><TABLE
BORDER="0"
WIDTH="100%"
BGCOLOR="#FFD0D0"
CELLSPACING="0"
CELLPADDING="4"
CLASS="CALSTABLE"
><TBODY
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>ctxt</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the XPath Parser context</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>nargs</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the number of arguments</TD
></TR
></TBODY
></TABLE
><P
></P
></DIV
></DIV
><HR><DIV
CLASS="REFSECT2"
><A
NAME="AEN317"
></A
><H3
><A
NAME="XSLTFUNCTIONAVAILABLEFUNCTION"
></A
>&#62;xsltFunctionAvailableFunction ()</H3
><TABLE
BORDER="0"
BGCOLOR="#D6E8FF"
WIDTH="100%"
CELLPADDING="6"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>void xsltFunctionAvailableFunction (<GTKDOCLINK
HREF="XMLXPATHPARSERCONTEXTPTR"
>xmlXPathParserContextPtr</GTKDOCLINK
> ctxt,
int nargs);</PRE
></TD
></TR
></TABLE
><P
>Implement the function-<GTKDOCLINK
HREF="AVAILABLE"
>available</GTKDOCLINK
>() XSLT function
boolean function-available(string)</P
><P
></P
><DIV
CLASS="INFORMALTABLE"
><A
NAME="AEN325"
></A
><P
></P
><TABLE
BORDER="0"
WIDTH="100%"
BGCOLOR="#FFD0D0"
CELLSPACING="0"
CELLPADDING="4"
CLASS="CALSTABLE"
><TBODY
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
>ctxt</I
></TT
>&nbsp;:</TD
><TD
WIDTH="80%"
ALIGN="LEFT"
VALIGN="TOP"
> the XPath Parser context</TD
></TR
><TR
><TD
WIDTH="20%"
ALIGN="RIGHT"
VALIGN="TOP"
><TT
CLASS="PARAMETER"
><I
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