From 490963c1550efffe046179ced9b39573185e3e1d Mon Sep 17 00:00:00 2001
From: Adrian Kummerlaender
Date: Sat, 11 Feb 2017 22:22:27 +0100
Subject: Initial implementation of a tree-like website generator based on
 InputXSLT

The foundation was forked from `blog.kummerlaender.eu`. Currently generates arbitrarily nested markdown documents in addition to overview pages for branches in the tree. This includes resolution of branch node contents.
---
 utility/formatter.xsl | 134 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 134 insertions(+)
 create mode 100644 utility/formatter.xsl

(limited to 'utility/formatter.xsl')

diff --git a/utility/formatter.xsl b/utility/formatter.xsl
new file mode 100644
index 0000000..f590d89
--- /dev/null
+++ b/utility/formatter.xsl
@@ -0,0 +1,134 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<xsl:stylesheet
+	version="1.0"
+	xmlns="http://www.w3.org/1999/xhtml"
+	xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
+	xmlns:xalan="http://xml.apache.org/xalan"
+	xmlns:InputXSLT="function.inputxslt.application"
+	exclude-result-prefixes="xalan InputXSLT"
+>
+
+<xsl:template name="plain_formatter">
+	<xsl:param name="format"/>
+	<xsl:param name="source"/>
+
+	<xsl:copy-of select="InputXSLT:external-command(
+		$format,
+		$source
+	)/self::command/node()"/>
+</xsl:template>
+
+<xsl:template name="math_highlighter">
+	<xsl:param name="source"/>
+	<xsl:param name="arguments"/>
+
+	<xsl:variable name="formatted_expression">
+		<xsl:call-template name="plain_formatter">
+			<xsl:with-param name="format">
+				<xsl:text>katex </xsl:text>
+				<xsl:value-of select="$arguments"/>
+			</xsl:with-param>
+			<xsl:with-param name="source" select="$source"/>
+		</xsl:call-template>
+	</xsl:variable>
+
+	<xsl:copy-of select="xalan:nodeset($formatted_expression)/node()"/>
+</xsl:template>
+
+<xsl:template name="code_highlighter">
+	<xsl:param name="source"/>
+	<xsl:param name="language"/>
+
+	<xsl:variable name="formatted_code">
+		<xsl:call-template name="plain_formatter">
+			<xsl:with-param name="format">
+				<xsl:text>highlight --out-format=xhtml --inline-css --style=molokai --fragment --enclose-pre --wrap-simple --syntax=</xsl:text>
+				<xsl:value-of select="$language"/>
+			</xsl:with-param>
+			<xsl:with-param name="source" select="$source"/>
+		</xsl:call-template>
+	</xsl:variable>
+
+	<pre>
+		<xsl:copy-of select="xalan:nodeset($formatted_code)/pre/node()"/>
+	</pre>
+</xsl:template>
+
+<xsl:template match="@*|node()" mode="embellish">
+	<xsl:copy>
+		<xsl:apply-templates select="@*|node()" mode="embellish"/>
+	</xsl:copy>
+</xsl:template>
+
+<xsl:template match="h2" mode="embellish">
+	<h3>
+		<xsl:apply-templates select="node()" mode="embellish"/>
+	</h3>
+</xsl:template>
+
+<xsl:template match="h3" mode="embellish">
+	<h4>
+		<xsl:apply-templates select="node()" mode="embellish"/>
+	</h4>
+</xsl:template>
+
+<xsl:template match="pre" mode="embellish">
+	<xsl:call-template name="code_highlighter">
+		<xsl:with-param name="source" select="code/text()"/>
+		<xsl:with-param name="language">
+			<xsl:choose>
+				<xsl:when test="@class">
+					<xsl:value-of select="@class"/>
+				</xsl:when>
+				<xsl:otherwise>
+					<xsl:text>txt</xsl:text>
+				</xsl:otherwise>
+			</xsl:choose>
+		</xsl:with-param>
+	</xsl:call-template>
+</xsl:template>
+
+<xsl:template match="div[@class = 'figure']" mode="embellish">
+	<p>
+		<xsl:apply-templates select="img" mode="embellish"/>
+	</p>
+</xsl:template>
+
+<xsl:template match="div[@class = 'footnotes']/hr" mode="embellish"/>
+
+<xsl:template match="span[contains(@class, 'math')]" mode="embellish">
+	<xsl:choose>
+		<xsl:when test="contains(@class, 'display')">
+			<p class="math">
+				<xsl:call-template name="math_highlighter">
+					<xsl:with-param name="source" select="text()"/>
+					<xsl:with-param name="arguments">
+						<xsl:text>--display-mode</xsl:text>
+					</xsl:with-param>
+				</xsl:call-template>
+			</p>
+		</xsl:when>
+		<xsl:otherwise>
+			<span class="math">
+				<xsl:call-template name="math_highlighter">
+					<xsl:with-param name="source" select="text()"/>
+				</xsl:call-template>
+			</span>
+		</xsl:otherwise>
+	</xsl:choose>
+</xsl:template>
+
+<xsl:template name="formatter">
+	<xsl:param name="source"/>
+
+	<xsl:variable name="content">
+		<xsl:call-template name="plain_formatter">
+			<xsl:with-param name="format">pandoc -f markdown -t html --katex --no-highlight</xsl:with-param>
+			<xsl:with-param name="source" select="$source"/>
+		</xsl:call-template>
+	</xsl:variable>
+
+	<xsl:apply-templates select="xalan:nodeset($content)" mode="embellish"/>
+</xsl:template>
+
+</xsl:stylesheet>
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