From 5cf39944c597767301e69cd80b7e7c79f48d876c Mon Sep 17 00:00:00 2001
From: Adrian Kummerlaender
Date: Sun, 14 Apr 2019 00:30:55 +0200
Subject: Update formatter and styling to match blog generator

---
 source/99_result/main.css |  1 +
 utility/formatter.xsl     | 67 ++++++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 67 insertions(+), 1 deletion(-)

diff --git a/source/99_result/main.css b/source/99_result/main.css
index 5b907a4..9b140fe 100644
--- a/source/99_result/main.css
+++ b/source/99_result/main.css
@@ -28,6 +28,7 @@ sub{vertical-align:baseline;position:relative;top:0.4em}
 #introduction img{border-radius:0.5em;margin-right:1.5em;float:left;width:12em;height:12em}
 #introduction p{width:31.5em;float:right}
 #introduction .greeting{font:bold 1.1em 'Oswald',sans-serif;display:inline-block}
+#content img{padding:.2em;border:.1em solid #e3e8e8;display:block;margin-left:auto;margin-right:auto;max-width:95%}
 
 .info{font:normal .8em 'Oswald',sans-serif;margin-bottom:.5em;display:block}
 .info a{margin:0 .1em 0 .1em}
diff --git a/utility/formatter.xsl b/utility/formatter.xsl
index 57edf2d..606a764 100644
--- a/utility/formatter.xsl
+++ b/utility/formatter.xsl
@@ -18,6 +18,23 @@
 	)/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"/>
@@ -43,6 +60,18 @@
 	</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()"/>
@@ -59,12 +88,48 @@
 	</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="div[@class = 'footnotes']//a[contains(@href, '#fnref')]" mode="embellish">
+	<a href="{@href}" class="more">
+		<xsl:apply-templates select="node()" mode="embellish"/>
+	</a>
+</xsl:template>
+
+<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="substring(text(),3,string-length(text())-4)"/>
+					<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="substring(text(),3,string-length(text())-4)"/>
+				</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 --no-highlight</xsl:with-param>
+			<xsl:with-param name="format">pandoc -f markdown -t html4 --katex --no-highlight -fmarkdown-implicit_figures</xsl:with-param>
 			<xsl:with-param name="source" select="$source"/>
 		</xsl:call-template>
 	</xsl:variable>
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