--- /dev/null
+<?xml version="1.0"?>
+
+<xsl:stylesheet
+ version="1.0"
+ extension-element-prefixes="doc"
+ xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+ xmlns:doc="http://xsltsl.org/xsl/documentation/1.0"
+ xmlns:uri="http://xsltsl.org/uri"
+>
+
+ <doc:reference xmlns="">
+ <referenceinfo>
+ <releaseinfo role="meta">
+ $Id: uri.xsl 3991 2004-11-10 06:51:55Z balls $
+ </releaseinfo>
+ <author>
+ <surname>Diamond</surname>
+ <firstname>Jason</firstname>
+ </author>
+ <copyright>
+ <year>2001</year>
+ <holder>Jason Diamond</holder>
+ </copyright>
+ </referenceinfo>
+
+ <title>URI (Uniform Resource Identifier) Processing</title>
+
+ <partintro>
+ <section>
+ <title>Introduction</title>
+ <para>This module provides templates for processing URIs (Uniform Resource Identifers).</para>
+ </section>
+ </partintro>
+
+ </doc:reference>
+
+ <doc:template name="uri:is-absolute-uri" xmlns="">
+ <refpurpose>Determines if a URI is absolute or relative.</refpurpose>
+
+ <refdescription>
+ <para>Absolute URIs start with a scheme (like "http:" or "mailto:").</para>
+ </refdescription>
+
+ <refparameter>
+ <variablelist>
+ <varlistentry>
+ <term>uri</term>
+ <listitem>
+ <para>An absolute or relative URI.</para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+ </refparameter>
+
+ <refreturn>
+ <para>Returns 'true' if the URI is absolute or '' if it's not.</para>
+ </refreturn>
+ </doc:template>
+
+ <xsl:template name="uri:is-absolute-uri">
+ <xsl:param name="uri"/>
+
+ <xsl:if test="contains($uri, ':')">
+ <xsl:value-of select="true()"/>
+ </xsl:if>
+
+ </xsl:template>
+
+ <doc:template name="uri:get-uri-scheme" xmlns="">
+ <refpurpose>Gets the scheme part of a URI.</refpurpose>
+
+ <refdescription>
+ <para>The ':' is not part of the scheme.</para>
+ </refdescription>
+
+ <refparameter>
+ <variablelist>
+ <varlistentry>
+ <term>uri</term>
+ <listitem>
+ <para>An absolute or relative URI.</para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+ </refparameter>
+
+ <refreturn>
+ <para>Returns the scheme (without the ':') or '' if the URI is relative.</para>
+ </refreturn>
+ </doc:template>
+
+ <xsl:template name="uri:get-uri-scheme">
+ <xsl:param name="uri"/>
+ <xsl:if test="contains($uri, ':')">
+ <xsl:value-of select="substring-before($uri, ':')"/>
+ </xsl:if>
+ </xsl:template>
+
+ <doc:template name="uri:get-uri-authority" xmlns="">
+ <refpurpose>Gets the authority part of a URI.</refpurpose>
+
+ <refdescription>
+ <para>The authority usually specifies the host machine for a resource. It always follows '//' in a typical URI.</para>
+ </refdescription>
+
+ <refparameter>
+ <variablelist>
+ <varlistentry>
+ <term>uri</term>
+ <listitem>
+ <para>An absolute or relative URI.</para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+ </refparameter>
+
+ <refreturn>
+ <para>Returns the authority (without the '//') or '' if the URI has no authority.</para>
+ </refreturn>
+ </doc:template>
+
+ <xsl:template name="uri:get-uri-authority">
+ <xsl:param name="uri"/>
+
+ <xsl:variable name="a">
+ <xsl:choose>
+ <xsl:when test="contains($uri, ':')">
+ <xsl:if test="substring(substring-after($uri, ':'), 1, 2) = '//'">
+ <xsl:value-of select="substring(substring-after($uri, ':'), 3)"/>
+ </xsl:if>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:if test="substring($uri, 1, 2) = '//'">
+ <xsl:value-of select="substring($uri, 3)"/>
+ </xsl:if>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:variable>
+
+ <xsl:choose>
+ <xsl:when test="contains($a, '/')">
+ <xsl:value-of select="substring-before($a, '/')" />
+ </xsl:when>
+ <xsl:when test="contains($a, '?')">
+ <xsl:value-of select="substring-before($a, '?')" />
+ </xsl:when>
+ <xsl:when test="contains($a, '#')">
+ <xsl:value-of select="substring-before($a, '#')" />
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:value-of select="$a" />
+ </xsl:otherwise>
+ </xsl:choose>
+
+ </xsl:template>
+
+ <doc:template name="uri:get-uri-path" xmlns="">
+ <refpurpose>Gets the path part of a URI.</refpurpose>
+
+ <refdescription>
+ <para>The path usually comes after the '/' in a URI.</para>
+ </refdescription>
+
+ <refparameter>
+ <variablelist>
+ <varlistentry>
+ <term>uri</term>
+ <listitem>
+ <para>An absolute or relative URI.</para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+ </refparameter>
+
+ <refreturn>
+ <para>Returns the path (with any leading '/') or '' if the URI has no path.</para>
+ </refreturn>
+ </doc:template>
+
+ <xsl:template name="uri:get-uri-path">
+ <xsl:param name="uri"/>
+
+ <xsl:variable name="p">
+ <xsl:choose>
+ <xsl:when test="contains($uri, '//')">
+ <xsl:if test="contains(substring-after($uri, '//'), '/')">
+ <xsl:value-of select="concat('/', substring-after(substring-after($uri, '//'), '/'))"/>
+ </xsl:if>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:choose>
+ <xsl:when test="contains($uri, ':')">
+ <xsl:value-of select="substring-after($uri, ':')"/>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:value-of select="$uri"/>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:variable>
+
+ <xsl:choose>
+ <xsl:when test="contains($p, '?')">
+ <xsl:value-of select="substring-before($p, '?')" />
+ </xsl:when>
+ <xsl:when test="contains($p, '#')">
+ <xsl:value-of select="substring-before($p, '#')" />
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:value-of select="$p" />
+ </xsl:otherwise>
+ </xsl:choose>
+
+ </xsl:template>
+
+ <doc:template name="uri:get-uri-query" xmlns="">
+ <refpurpose>Gets the query part of a URI.</refpurpose>
+
+ <refdescription>
+ <para>The query comes after the '?' in a URI.</para>
+ </refdescription>
+
+ <refparameter>
+ <variablelist>
+ <varlistentry>
+ <term>uri</term>
+ <listitem>
+ <para>An absolute or relative URI.</para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+ </refparameter>
+
+ <refreturn>
+ <para>Returns the query (without the '?') or '' if the URI has no query.</para>
+ </refreturn>
+ </doc:template>
+
+ <xsl:template name="uri:get-uri-query">
+ <xsl:param name="uri"/>
+
+ <xsl:variable name="q" select="substring-after($uri, '?')"/>
+
+ <xsl:choose>
+ <xsl:when test="contains($q, '#')">
+ <xsl:value-of select="substring-before($q, '#')"/>
+ </xsl:when>
+ <xsl:otherwise><xsl:value-of select="$q"/></xsl:otherwise>
+ </xsl:choose>
+
+ </xsl:template>
+
+ <doc:template name="uri:get-uri-fragment" xmlns="">
+ <refpurpose>Gets the fragment part of a URI.</refpurpose>
+
+ <refdescription>
+ <para>The fragment comes after the '#' in a URI.</para>
+ </refdescription>
+
+ <refparameter>
+ <variablelist>
+ <varlistentry>
+ <term>uri</term>
+ <listitem>
+ <para>An absolute or relative URI.</para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+ </refparameter>
+
+ <refreturn>
+ <para>Returns the fragment (without the '#') or '' if the URI has no fragment.</para>
+ </refreturn>
+ </doc:template>
+
+ <xsl:template name="uri:get-uri-fragment">
+ <xsl:param name="uri"/>
+
+ <xsl:value-of select="substring-after($uri, '#')"/>
+
+ </xsl:template>
+
+ <doc:template name="uri:resolve-uri" xmlns="">
+ <refpurpose>Resolves a URI reference against a base URI.</refpurpose>
+
+ <refdescription>
+ <para>This template follows the guidelines specified by <ulink url="ftp://ftp.isi.edu/in-notes/rfc2396.txt">RFC 2396</ulink>.</para>
+ </refdescription>
+
+ <refparameter>
+ <variablelist>
+ <varlistentry>
+ <term>reference</term>
+ <listitem>
+ <para>A (potentially relative) URI reference.</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term>base</term>
+ <listitem>
+ <para>The base URI.</para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term>document</term>
+ <listitem>
+ <para>The URI of the current document. This defaults to the value of the base URI if not specified.</para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
+ </refparameter>
+
+ <refreturn>
+ <para>The "combined" URI.</para>
+ </refreturn>
+ </doc:template>
+
+ <xsl:template name="uri:resolve-uri">
+ <xsl:param name="reference"/>
+ <xsl:param name="base"/>
+ <xsl:param name="document" select="$base"/>
+
+ <xsl:variable name="reference-scheme">
+ <xsl:call-template name="uri:get-uri-scheme">
+ <xsl:with-param name="uri" select="$reference"/>
+ </xsl:call-template>
+ </xsl:variable>
+
+ <xsl:variable name="reference-authority">
+ <xsl:call-template name="uri:get-uri-authority">
+ <xsl:with-param name="uri" select="$reference"/>
+ </xsl:call-template>
+ </xsl:variable>
+
+ <xsl:variable name="reference-path">
+ <xsl:call-template name="uri:get-uri-path">
+ <xsl:with-param name="uri" select="$reference"/>
+ </xsl:call-template>
+ </xsl:variable>
+
+ <xsl:variable name="reference-query">
+ <xsl:call-template name="uri:get-uri-query">
+ <xsl:with-param name="uri" select="$reference"/>
+ </xsl:call-template>
+ </xsl:variable>
+
+ <xsl:variable name="reference-fragment">
+ <xsl:call-template name="uri:get-uri-fragment">
+ <xsl:with-param name="uri" select="$reference"/>
+ </xsl:call-template>
+ </xsl:variable>
+
+ <xsl:choose>
+
+ <xsl:when test="
+ not(string-length($reference-scheme)) and
+ not(string-length($reference-authority)) and
+ not(string-length($reference-path)) and
+ not(string-length($reference-query))"
+ >
+
+ <xsl:choose>
+ <xsl:when test="contains($document, '?')">
+ <xsl:value-of select="substring-before($document, '?')"/>
+ </xsl:when>
+ <xsl:when test="contains($document, '#')">
+ <xsl:value-of select="substring-before($document, '#')"/>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:value-of select="$document"/>
+ </xsl:otherwise>
+ </xsl:choose>
+
+ <xsl:if test="string-length($reference-fragment)">
+ <xsl:value-of select="concat('#', $reference-fragment)"/>
+ </xsl:if>
+
+ </xsl:when>
+
+ <xsl:when test="string-length($reference-scheme)">
+
+ <xsl:value-of select="$reference"/>
+
+ </xsl:when>
+
+ <xsl:otherwise>
+
+ <xsl:variable name="base-scheme">
+ <xsl:call-template name="uri:get-uri-scheme">
+ <xsl:with-param name="uri" select="$base"/>
+ </xsl:call-template>
+ </xsl:variable>
+
+ <xsl:variable name="base-authority">
+ <xsl:call-template name="uri:get-uri-authority">
+ <xsl:with-param name="uri" select="$base"/>
+ </xsl:call-template>
+ </xsl:variable>
+
+ <xsl:variable name="base-path">
+ <xsl:call-template name="uri:get-uri-path">
+ <xsl:with-param name="uri" select="$base"/>
+ </xsl:call-template>
+ </xsl:variable>
+
+ <xsl:variable name="base-query">
+ <xsl:call-template name="uri:get-uri-query">
+ <xsl:with-param name="uri" select="$base"/>
+ </xsl:call-template>
+ </xsl:variable>
+
+ <xsl:variable name="base-fragment">
+ <xsl:call-template name="uri:get-uri-fragment">
+ <xsl:with-param name="uri" select="$base"/>
+ </xsl:call-template>
+ </xsl:variable>
+
+ <xsl:variable name="result-authority">
+ <xsl:choose>
+ <xsl:when test="string-length($reference-authority)">
+ <xsl:value-of select="$reference-authority"/>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:value-of select="$base-authority"/>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:variable>
+
+ <xsl:variable name="result-path">
+ <xsl:choose>
+ <!-- don't normalize absolute paths -->
+ <xsl:when test="starts-with($reference-path, '/')">
+ <xsl:value-of select="$reference-path" />
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:call-template name="uri:normalize-path">
+ <xsl:with-param name="path">
+ <xsl:if test="string-length($reference-authority) = 0 and substring($reference-path, 1, 1) != '/'">
+ <xsl:call-template name="uri:get-path-without-file">
+ <xsl:with-param name="path-with-file" select="$base-path"/>
+ </xsl:call-template>
+ <xsl:value-of select="'/'"/>
+ </xsl:if>
+ <xsl:value-of select="$reference-path"/>
+ </xsl:with-param>
+ </xsl:call-template>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:variable>
+
+ <xsl:value-of select="concat($base-scheme, '://', $result-authority, $result-path)"/>
+
+ <xsl:if test="string-length($reference-query)">
+ <xsl:value-of select="concat('?', $reference-query)"/>
+ </xsl:if>
+
+ <xsl:if test="string-length($reference-fragment)">
+ <xsl:value-of select="concat('#', $reference-fragment)"/>
+ </xsl:if>
+
+ </xsl:otherwise>
+ </xsl:choose>
+
+ </xsl:template>
+
+ <xsl:template name="uri:get-path-without-file">
+ <xsl:param name="path-with-file" />
+ <xsl:param name="path-without-file" />
+
+ <xsl:choose>
+ <xsl:when test="contains($path-with-file, '/')">
+ <xsl:call-template name="uri:get-path-without-file">
+ <xsl:with-param name="path-with-file" select="substring-after($path-with-file, '/')" />
+ <xsl:with-param name="path-without-file">
+ <xsl:choose>
+ <xsl:when test="$path-without-file">
+ <xsl:value-of select="concat($path-without-file, '/', substring-before($path-with-file, '/'))" />
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:value-of select="substring-before($path-with-file, '/')" />
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:with-param>
+ </xsl:call-template>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:value-of select="$path-without-file" />
+ </xsl:otherwise>
+ </xsl:choose>
+
+ </xsl:template>
+
+ <xsl:template name="uri:normalize-path">
+ <xsl:param name="path"/>
+ <xsl:param name="result" select="''"/>
+
+ <xsl:choose>
+ <xsl:when test="string-length($path)">
+ <xsl:choose>
+ <xsl:when test="$path = '/'">
+ <xsl:value-of select="concat($result, '/')"/>
+ </xsl:when>
+ <xsl:when test="$path = '.'">
+ <xsl:value-of select="concat($result, '/')"/>
+ </xsl:when>
+ <xsl:when test="$path = '..'">
+ <xsl:call-template name="uri:get-path-without-file">
+ <xsl:with-param name="path-with-file" select="$result"/>
+ </xsl:call-template>
+ <xsl:value-of select="'/'"/>
+ </xsl:when>
+ <xsl:when test="contains($path, '/')">
+ <!-- the current segment -->
+ <xsl:variable name="s" select="substring-before($path, '/')"/>
+ <!-- the remaining path -->
+ <xsl:variable name="p">
+ <xsl:choose>
+ <xsl:when test="substring-after($path, '/') = ''">
+ <xsl:value-of select="'/'"/>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:value-of select="substring-after($path, '/')"/>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:variable>
+ <xsl:choose>
+ <xsl:when test="$s = ''">
+ <xsl:call-template name="uri:normalize-path">
+ <xsl:with-param name="path" select="$p"/>
+ <xsl:with-param name="result" select="$result"/>
+ </xsl:call-template>
+ </xsl:when>
+ <xsl:when test="$s = '.'">
+ <xsl:call-template name="uri:normalize-path">
+ <xsl:with-param name="path" select="$p"/>
+ <xsl:with-param name="result" select="$result"/>
+ </xsl:call-template>
+ </xsl:when>
+ <xsl:when test="$s = '..'">
+ <xsl:choose>
+ <xsl:when test="string-length($result) and (substring($result, string-length($result) - 2) != '/..')">
+ <xsl:call-template name="uri:normalize-path">
+ <xsl:with-param name="path" select="$p"/>
+ <xsl:with-param name="result">
+ <xsl:call-template name="uri:get-path-without-file">
+ <xsl:with-param name="path-with-file" select="$result"/>
+ </xsl:call-template>
+ </xsl:with-param>
+ </xsl:call-template>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:call-template name="uri:normalize-path">
+ <xsl:with-param name="path" select="$p"/>
+ <xsl:with-param name="result" select="concat($result, '/..')"/>
+ </xsl:call-template>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:call-template name="uri:normalize-path">
+ <xsl:with-param name="path" select="$p"/>
+ <xsl:with-param name="result" select="concat($result, '/', $s)"/>
+ </xsl:call-template>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:value-of select="concat($result, '/', $path)"/>
+ </xsl:otherwise>
+ </xsl:choose>
+ </xsl:when>
+ <xsl:otherwise>
+ <xsl:value-of select="$result"/>
+ </xsl:otherwise>
+ </xsl:choose>
+
+ </xsl:template>
+
+</xsl:stylesheet>
git.stg.codes / stg.git / blobdiff