nginx/docs/xslt/changes.xslt
Igor Sysoev ef0316bb82 Merge of r3996, r3998, r4015, r4023, r4025, r4026, r4027:
Changes log build procedure fixes:

*) using sed instead of perl
*) support <br/> in the middle of input
*) fixed "<br>" lookup (eliminates the need in " <br/>" hacks)
*) fixed maximum length for unbreakable input
*) fixed space lookup (allows a space at column 77 to break a line)
*) traling spaces removal in text CHANGES files.
2011-08-29 13:57:43 +00:00

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<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:output encoding="koi8-r" method="text"/>
<xsl:param select="'en'" name="lang"/>
<xsl:param select="'../xml/change_log_conf.xml'" name="configuration"/>
<xsl:variable select="document($configuration)/configuration" name="conf"/>
<xsl:variable select="$conf/start" name="start"/>
<xsl:variable select="$conf/indent" name="indent"/>
<xsl:variable select="$conf/length" name="max"/>
<xsl:variable name="br">&lt;br&gt;</xsl:variable>
<xsl:template match="/">
<xsl:apply-templates select="change_log"/>
</xsl:template>
<xsl:template match="change_log">
<xsl:apply-templates select="changes"/>
</xsl:template>
<xsl:template match="changes">
<xsl:text>
</xsl:text>
<xsl:value-of select="substring(concat($conf/changes[@lang=$lang]/title, //change_log/@title, ' ', @ver, ' '), 1, $conf/changes[@lang=$lang]/length)"/>
<xsl:if test="$lang='ru'">
<xsl:value-of select="@date"/>
</xsl:if>
<xsl:if test="$lang='en'">
<xsl:value-of select="substring(@date, 1, 2)"/>
<xsl:value-of select="$conf/changes[@lang=$lang]/month[number(substring(current()/@date, 4, 2))]"/>
<xsl:value-of select="substring(@date, 7, 4)"/>
</xsl:if>
<xsl:text>
</xsl:text>
<xsl:apply-templates select="change"/>
<xsl:text>
</xsl:text>
</xsl:template>
<xsl:template match="change">
<xsl:variable select="$conf/changes[@lang=$lang]/*[local-name(.)=current()/@type]" name="prefix"/>
<xsl:variable name="postfix">
<xsl:if test="$prefix">
<xsl:text>: </xsl:text>
</xsl:if>
</xsl:variable>
<xsl:apply-templates select="para[@lang=$lang]">
<xsl:with-param select="concat($start, $prefix, $postfix)" name="prefix"/>
</xsl:apply-templates>
</xsl:template>
<xsl:template match="para" name="para">
<xsl:param name="prefix"/>
<xsl:variable name="text">
<xsl:apply-templates/>
</xsl:variable>
<xsl:text>
</xsl:text>
<xsl:call-template name="wrap">
<xsl:with-param select="normalize-space($text)" name="text"/>
<xsl:with-param name="prefix">
<xsl:choose>
<xsl:when test="position() = 1">
<xsl:value-of select="$prefix"/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$indent"/>
</xsl:otherwise>
</xsl:choose>
</xsl:with-param>
</xsl:call-template>
</xsl:template>
<xsl:template name="wrap">
<xsl:param name="text"/>
<xsl:param name="prefix"/>
<xsl:if test="$text">
<xsl:variable name="offset">
<xsl:choose>
<xsl:when test="starts-with($text, concat($br, ' '))">
<xsl:value-of select="string-length($br) + 2"/>
</xsl:when>
<xsl:when test="starts-with($text, $br)">
<xsl:value-of select="string-length($br) + 1"/>
</xsl:when>
<xsl:otherwise>
1</xsl:otherwise>
</xsl:choose>
</xsl:variable>
<xsl:variable name="length">
<xsl:call-template name="length">
<xsl:with-param select="substring($text, $offset)" name="text"/>
<xsl:with-param select="string-length($prefix)" name="prefix"/>
<xsl:with-param select="$max" name="length"/>
</xsl:call-template>
</xsl:variable>
<xsl:value-of select="$prefix"/>
<xsl:value-of select="normalize-space(translate(substring($text, $offset, $length), ' ', ' '))"/>
<xsl:text>
</xsl:text>
<xsl:call-template name="wrap">
<xsl:with-param select="substring($text, $length + $offset)" name="text"/>
<xsl:with-param select="$indent" name="prefix"/>
</xsl:call-template>
</xsl:if>
</xsl:template>
<xsl:template name="length">
<xsl:param name="text"/>
<xsl:param name="prefix"/>
<xsl:param name="length"/>
<xsl:variable select="substring-before(substring($text, 1, $length - $prefix + string-length($br)), $br)" name="break"/>
<xsl:choose>
<xsl:when test="$break">
<xsl:value-of select="string-length($break)"/>
</xsl:when>
<xsl:when test="$length = 0">
<xsl:value-of select="$max - $prefix"/>
</xsl:when>
<xsl:when test="string-length($text) + $prefix &lt;= $length">
<xsl:value-of select="$length - $prefix"/>
</xsl:when>
<xsl:when test="substring($text, $length - $prefix + 1, 1) = ' '">
<xsl:value-of select="$length - $prefix + 1"/>
</xsl:when>
<xsl:otherwise>
<xsl:call-template name="length">
<xsl:with-param select="$text" name="text"/>
<xsl:with-param select="$prefix" name="prefix"/>
<xsl:with-param select="$length - 1" name="length"/>
</xsl:call-template>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<xsl:template match="at">@</xsl:template>
<xsl:template match="br">
<xsl:value-of select="$br"/>
</xsl:template>
<xsl:template match="nobr">
<xsl:value-of select="translate(., ' ', ' ')"/>
</xsl:template>
</xsl:stylesheet>