From 084682929d4596b0559da1d9f5bd6f657378c69e Mon Sep 17 00:00:00 2001
From: =?utf8?q?Andr=C3=A9=20Malo?= <nd@apache.org>
Date: Wed, 29 Jan 2014 11:14:09 +0000
Subject: [PATCH] - treat highlight sections in latex output identically to pre
 sections. - trim whitespaces from pre and highligh sections.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1562402 13f79535-47bb-0310-9956-ffa450edef68
---
 docs/manual/style/latex/common.xsl |  4 +-
 docs/manual/style/latex/html.xsl   | 88 +++++++++++++++++++-----------
 2 files changed, 58 insertions(+), 34 deletions(-)

diff --git a/docs/manual/style/latex/common.xsl b/docs/manual/style/latex/common.xsl
index a3a04a0bde..15c8946f8d 100644
--- a/docs/manual/style/latex/common.xsl
+++ b/docs/manual/style/latex/common.xsl
@@ -78,14 +78,14 @@ select="$metafile/basename"/>
 <!-- verbatim inside of fbox doesn't work for some reason -->
 <xsl:template match="example">
 <xsl:text>\par\smallskip\begin{center}</xsl:text>
-<xsl:if test="not(pre)"><xsl:text>\fbox{</xsl:text></xsl:if>
+<xsl:if test="not(pre) and not(highlight)"><xsl:text>\fbox{</xsl:text></xsl:if>
 <xsl:text>\begin{minipage}{.8\textwidth}\begin{flushleft}</xsl:text>
 <xsl:apply-templates select="title" mode="print" />
 <xsl:text>{\ttfamily\small </xsl:text>
 <xsl:text>\noindent </xsl:text><xsl:apply-templates/>
 <xsl:text>}</xsl:text>
 <xsl:text>\end{flushleft}\end{minipage}</xsl:text>
-<xsl:if test="not(pre)"><xsl:text>}</xsl:text></xsl:if>
+<xsl:if test="not(pre) and not(highlight)"><xsl:text>}</xsl:text></xsl:if>
 <xsl:text>\end{center}\par\smallskip</xsl:text>
 </xsl:template>
 
diff --git a/docs/manual/style/latex/html.xsl b/docs/manual/style/latex/html.xsl
index 3e566e2ffc..108d470141 100644
--- a/docs/manual/style/latex/html.xsl
+++ b/docs/manual/style/latex/html.xsl
@@ -1,4 +1,7 @@
 <?xml version="1.0"?>
+<!DOCTYPE xsl:stylesheet [
+    <!ENTITY lf SYSTEM "../xsl/util/lf.xml">
+]>
 
 <!--
  Licensed to the Apache Software Foundation (ASF) under one or more
@@ -27,34 +30,27 @@
 <!-- ==================================================================== -->
 
 <xsl:template match="ul">
-<xsl:text>\begin{itemize}
-</xsl:text>
+<xsl:text>\begin{itemize}</xsl:text>&lf;
 <xsl:apply-templates/>
-<xsl:text>\end{itemize}
-</xsl:text>
+<xsl:text>\end{itemize}</xsl:text>&lf;
 </xsl:template>
 
 <xsl:template match="ol">
-<xsl:text>\begin{enumerate}
-</xsl:text>
+<xsl:text>\begin{enumerate}</xsl:text>&lf;
 <xsl:apply-templates/>
-<xsl:text>\end{enumerate}
-</xsl:text>
+<xsl:text>\end{enumerate}</xsl:text>&lf;
 </xsl:template>
 
 <xsl:template match="li">
 <xsl:text>\item </xsl:text>
 <xsl:apply-templates/>
-<xsl:text>
-</xsl:text>
+&lf;
 </xsl:template>
 
 <xsl:template match="dl">
-<xsl:text>\begin{description}
-</xsl:text>
+<xsl:text>\begin{description}</xsl:text>&lf;
 <xsl:apply-templates/>
-<xsl:text>\end{description}
-</xsl:text>
+<xsl:text>\end{description}</xsl:text>&lf;
 </xsl:template>
 
 <xsl:template match="dt">
@@ -114,8 +110,7 @@
 
 <xsl:template match="p">
 <xsl:apply-templates/>
-<xsl:text>\par
-</xsl:text>
+<xsl:text>\par</xsl:text>&lf;
 </xsl:template>
 
 <xsl:template match="code|program">
@@ -148,23 +143,55 @@
 <xsl:text>}</xsl:text>
 </xsl:template>
 
+<!-- O(log(n)) (stack usage!) string reverter -->
+<xsl:template name="string-reverse">
+<xsl:param name="string"/>
+<xsl:variable name="length" select="string-length($string)"/>
+
+<xsl:choose>
+<xsl:when test="$length &lt; 2">
+  <xsl:value-of select="$string"/>
+</xsl:when>
+<xsl:when test="$length = 2">
+  <xsl:value-of select="concat(substring($string, 2, 1), substring($string, 1, 1))"/>
+</xsl:when>
+<xsl:otherwise>
+  <xsl:variable name="middle" select="floor($length div 2)"/>
+
+  <xsl:call-template name="string-reverse">
+    <xsl:with-param name="string" select="substring($string, $middle + 1, $middle + 1)"/>
+  </xsl:call-template>
+  <xsl:call-template name="string-reverse">
+    <xsl:with-param name="string" select="substring($string, 1, $middle)"/>
+  </xsl:call-template>
+</xsl:otherwise>
+</xsl:choose>
+</xsl:template>
+
 <!-- Value-of used here explicitly because we don't wan't latex-escaping
 performed.  Of course, this will conflict with html where some tags are
 interpreted in pre -->
-<xsl:template match="pre">
-<xsl:text>\begin{verbatim}
-</xsl:text>
-<xsl:value-of select="."/>
-<xsl:text>\end{verbatim}
-</xsl:text>
+<xsl:template match="pre|highlight">
+<xsl:text>\begin{verbatim}</xsl:text>
+
+<!-- string trimming: ltrim is easy, rtrim is not. so, we're sneaky and use
+ltrim only. The output is then: string-reverse(ltrim(string-reverse(ltrim(.)))) -->
+<xsl:variable name="reversed">
+<xsl:call-template name="string-reverse">
+<xsl:with-param name="string" select="substring(., string-length(substring-before(., substring(normalize-space(.), 1, 1))) + 1, string-length(.))"/>
+</xsl:call-template>
+</xsl:variable>
+<xsl:call-template name="string-reverse">
+<xsl:with-param name="string" select="substring($reversed, string-length(substring-before($reversed, substring(normalize-space($reversed), 1, 1))) + 1, string-length($reversed))"/>
+</xsl:call-template>
+
+<xsl:text>\end{verbatim}</xsl:text>&lf;
 </xsl:template>
 
 <xsl:template match="blockquote">
-<xsl:text>\begin{quotation}
-</xsl:text>
+<xsl:text>\begin{quotation}</xsl:text>&lf;
 <xsl:apply-templates/>
-<xsl:text>\end{quotation}
-</xsl:text>
+<xsl:text>\end{quotation}</xsl:text>&lf;
 </xsl:template>
 
 <!-- XXX: We need to deal with table headers -->
@@ -197,13 +224,11 @@ interpreted in pre -->
   </xsl:for-each>
 </xsl:otherwise>
 </xsl:choose>
-<xsl:text>|}\hline
-</xsl:text>
+<xsl:text>|}\hline</xsl:text>&lf;
 <xsl:apply-templates select="tr"/>
 <xsl:text>\hline\end{</xsl:text>
 <xsl:value-of select="$table-type"/>
-<xsl:text>}
-</xsl:text>
+<xsl:text>}</xsl:text>&lf;
 </xsl:template>
 
 <xsl:template match="tr">
@@ -212,8 +237,7 @@ interpreted in pre -->
   <xsl:if test="../@border and not(position()=last())">
     <xsl:text>\hline</xsl:text>
   </xsl:if>
-  <xsl:text>
-</xsl:text>
+  &lf;
 </xsl:template>
 
 <xsl:template match="td">
-- 
2.40.0