From 8223f1abb07fd5c26c1361b42e9c7527fd718fa5 Mon Sep 17 00:00:00 2001
From: Adrian Kummerlaender
Date: Sun, 27 May 2018 21:34:37 +0200
Subject: Add Nix derivation, dependencies

---
 utility/date-time.xsl      | 243 +++++++++++++++++++++++++++++++++++++++++++++
 utility/formatter.xsl      |   6 +-
 utility/katex/katex.min.js |   1 +
 utility/katex/wrapper      |  16 +++
 4 files changed, 263 insertions(+), 3 deletions(-)
 create mode 100644 utility/date-time.xsl
 create mode 100644 utility/katex/katex.min.js
 create mode 100755 utility/katex/wrapper

(limited to 'utility')

diff --git a/utility/date-time.xsl b/utility/date-time.xsl
new file mode 100644
index 0000000..ed51869
--- /dev/null
+++ b/utility/date-time.xsl
@@ -0,0 +1,243 @@
+<?xml version="1.0" encoding="utf-8"?>
+<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
+
+<!--
+
+Source: https://www.getsymphony.com/download/xslt-utilities/view/20506/
+
+Description:
+
+This is a date formatting utility. The named template "format-date" takes 2 parameters:
+
+1. date - [required] takes an ISO date (2005-12-01)
+2. format - [optional] takes a format string.
+
+Format options:
+
+Y - year in 4 digits e.g. 1981, 1992, 2008
+y - year in 2 digits e.g. 81, 92, 08
+M - month as a full word e.g. January, March, September
+m - month in 3 letters e.g. Jan, Mar, Sep
+N - month in digits without leading zero
+n - month in digits with leading zero
+D - day with suffix and no leading zero e.g. 1st, 23rd
+d - day in digits with leading zero e.g. 01, 09, 12, 25
+x - day in digits with no leading zero e.g. 1, 9, 12, 25
+T - time in 24-hours e.g. 18:30
+t - time in 12-hours e.g. 6:30pm
+W - weekday as a full word e.g. Monday, Tuesday
+w - weekday in 3 letters e.g. Mon, Tue, Wed
+
+Examples:
+
+M       => January
+d M     => 21 September
+m D, y  => Sep 21st, 81
+n-d-y   => 09-21-81
+d/n/y   => 21/09/81
+d/n/y t => 21/09/81 6:30pm
+
+-->
+
+<xsl:template name="format-date">
+	<xsl:param name="date"/>
+	<xsl:param name="format" select="'D M, Y'"/>
+	<xsl:choose>
+		<xsl:when test="string-length($format) &lt;= 10">
+			<xsl:call-template name="date-controller">
+				<xsl:with-param name="date" select="$date"/>
+				<xsl:with-param name="format" select="$format"/>
+			</xsl:call-template>
+		</xsl:when>
+		<xsl:otherwise>
+			<xsl:text>Error: format parameter is not correctly set. You have: </xsl:text>
+			<xsl:value-of select="string-length($format)"/>
+			<xsl:text>.</xsl:text>
+		</xsl:otherwise>
+	</xsl:choose>
+</xsl:template>
+
+<xsl:template name="date-controller">
+	<xsl:param name="date"/>
+	<xsl:param name="format"/>
+	<xsl:param name="letter" select="substring($format,1,1)"/>
+	<xsl:param name="tletter" select="translate($letter,'DMNYTW','dmnytw')"/>
+	<xsl:choose>
+		<xsl:when test="$tletter = 'y'">
+			<xsl:call-template name="format-year">
+				<xsl:with-param name="date" select="$date"/>
+				<xsl:with-param name="format" select="$letter"/>
+			</xsl:call-template>
+		</xsl:when>
+		<xsl:when test="$tletter = 'm'">
+			<xsl:call-template name="format-month">
+				<xsl:with-param name="date" select="$date"/>
+				<xsl:with-param name="format" select="$letter"/>
+			</xsl:call-template>
+		</xsl:when>
+		<xsl:when test="$tletter = 'n'">
+			<xsl:call-template name="format-month">
+				<xsl:with-param name="date" select="$date"/>
+				<xsl:with-param name="format" select="$letter"/>
+			</xsl:call-template>
+		</xsl:when>
+		<xsl:when test="$tletter = 'd'">
+			<xsl:call-template name="format-day">
+				<xsl:with-param name="date" select="$date"/>
+				<xsl:with-param name="format" select="$letter"/>
+			</xsl:call-template>
+		</xsl:when>
+		<xsl:when test="$tletter = 'x'">
+			<xsl:call-template name="format-day">
+				<xsl:with-param name="date" select="$date"/>
+				<xsl:with-param name="format" select="$letter"/>
+			</xsl:call-template>
+		</xsl:when>
+		<xsl:when test="$tletter = 't'">
+			<xsl:call-template name="format-time">
+				<xsl:with-param name="time" select="$date/@time"/>
+				<xsl:with-param name="format" select="$letter"/>
+			</xsl:call-template>
+		</xsl:when>
+		<xsl:when test="$tletter = 'w'">
+			<xsl:call-template name="format-weekday">
+				<xsl:with-param name="weekday" select="$date/@weekday"/>
+				<xsl:with-param name="format" select="$letter"/>
+			</xsl:call-template>
+		</xsl:when>
+		<xsl:otherwise>
+			<xsl:value-of select="$letter"/>
+		</xsl:otherwise>
+	</xsl:choose>
+	<xsl:if test="$letter = not('')">
+		<xsl:call-template name="date-controller">
+			<xsl:with-param name="date" select="$date"/>
+			<xsl:with-param name="format" select="substring($format,2)"/>
+		</xsl:call-template>
+	</xsl:if>
+</xsl:template>
+
+<xsl:template name="format-year">
+	<xsl:param name="date"/>
+	<xsl:param name="year" select="substring($date,1,4)"/>
+	<xsl:param name="format" select="'y'"/>
+	<xsl:choose>
+		<xsl:when test="$format = 'y'">
+			<xsl:value-of select="substring($year,3)"/>
+		</xsl:when>
+		<xsl:when test="$format = 'Y'">
+			<xsl:value-of select="$year"/>
+		</xsl:when>
+	</xsl:choose>
+</xsl:template>
+
+<xsl:template name="format-month">
+	<xsl:param name="date"/>
+	<xsl:param name="month" select="format-number(substring($date,6,2), '##')"/>
+	<xsl:param name="format" select="'m'"/>
+	<xsl:param name="month-word">
+		<xsl:choose>
+			<xsl:when test="$month = 01">January</xsl:when>
+			<xsl:when test="$month = 02">February</xsl:when>
+			<xsl:when test="$month = 03">March</xsl:when>
+			<xsl:when test="$month = 04">April</xsl:when>
+			<xsl:when test="$month = 05">May</xsl:when>
+			<xsl:when test="$month = 06">June</xsl:when>
+			<xsl:when test="$month = 07">July</xsl:when>
+			<xsl:when test="$month = 08">August</xsl:when>
+			<xsl:when test="$month = 09">September</xsl:when>
+			<xsl:when test="$month = 10">October</xsl:when>
+			<xsl:when test="$month = 11">November</xsl:when>
+			<xsl:when test="$month = 12">December</xsl:when>
+		</xsl:choose>
+	</xsl:param>
+	<xsl:choose>
+		<xsl:when test="$format = 'm'">
+			<xsl:value-of select="substring($month-word, 1,3)"/>
+		</xsl:when>
+		<xsl:when test="$format = 'M'">
+			<xsl:value-of select="$month-word"/>
+		</xsl:when>
+		<xsl:when test="$format = 'n'">
+			<xsl:value-of select="format-number($month, '00')"/>
+		</xsl:when>
+		<xsl:when test="$format = 'N'">
+			<xsl:value-of select="format-number($month, '0')"/>
+		</xsl:when>
+	</xsl:choose>
+</xsl:template>
+
+<xsl:template name="format-day">
+	<xsl:param name="date"/>
+	<xsl:param name="day" select="format-number(substring($date,9,2),'00')"/>
+	<xsl:param name="format" select="'d'"/>
+	<xsl:param name="suffix">
+		<xsl:choose>
+			<xsl:when test="(substring($day,2) = 1) and not(substring($day,1,1) = 1)">st</xsl:when>
+			<xsl:when test="(substring($day,2) = 2) and not(substring($day,1,1) = 1)">nd</xsl:when>
+			<xsl:when test="(substring($day,2) = 3) and not(substring($day,1,1) = 1)">rd</xsl:when>
+			<xsl:otherwise>th</xsl:otherwise>
+		</xsl:choose>
+	</xsl:param>
+	<xsl:choose>
+		<xsl:when test="$format = 'd'">
+			<xsl:value-of select="$day"/>
+		</xsl:when>
+		<xsl:when test="$format = 'x'">
+			<xsl:value-of select="format-number($day,'0')"/>
+		</xsl:when>
+		<xsl:when test="$format = 'D'">
+			<xsl:value-of select="format-number($day,'0')"/>
+			<xsl:value-of select="$suffix"/>
+		</xsl:when>
+	</xsl:choose>
+</xsl:template>
+
+<xsl:template name="format-time">
+	<xsl:param name="time"/>
+	<xsl:param name="hour" select="substring-before($time, ':')"/>
+	<xsl:param name="minute" select="substring-after($time, ':')"/>
+	<xsl:param name="format" select="'T'"/>
+	<xsl:choose>
+		<xsl:when test="$format = 'T'">
+			<xsl:value-of select="$time"/>
+		</xsl:when>
+		<xsl:when test="$format = 't'">
+			<xsl:choose>
+				<xsl:when test="$hour mod 12 = 0">12</xsl:when>
+				<xsl:otherwise><xsl:value-of select="($hour mod 12)"/></xsl:otherwise>
+			</xsl:choose>
+			<xsl:value-of select="concat(':',$minute)"/>
+			<xsl:choose>
+				<xsl:when test="$hour &lt; 12">am</xsl:when>
+				<xsl:otherwise>pm</xsl:otherwise>
+			</xsl:choose>
+		</xsl:when>
+	</xsl:choose>
+</xsl:template>
+
+<xsl:template name="format-weekday">
+	<xsl:param name="weekday"/>
+	<xsl:param name="format" select="'w'"/>
+	<xsl:param name="result">
+	<xsl:choose>
+		<xsl:when test="$weekday = 1">Monday</xsl:when>
+		<xsl:when test="$weekday = 2">Tuesday</xsl:when>
+		<xsl:when test="$weekday = 3">Wednesday</xsl:when>
+		<xsl:when test="$weekday = 4">Thursday</xsl:when>
+		<xsl:when test="$weekday = 5">Friday</xsl:when>
+		<xsl:when test="$weekday = 6">Saturday</xsl:when>
+		<xsl:when test="$weekday = 7">Sunday</xsl:when>
+	</xsl:choose>
+	</xsl:param>
+	<xsl:choose>
+		<xsl:when test="$format = 'W'">
+			<xsl:value-of select="$result"/>
+		</xsl:when>
+		<xsl:when test="$format = 'w'">
+			<xsl:value-of select="substring($result,1,3)"/>
+		</xsl:when>
+	</xsl:choose>
+</xsl:template>
+
+</xsl:stylesheet>
diff --git a/utility/formatter.xsl b/utility/formatter.xsl
index ec6db47..9198f36 100644
--- a/utility/formatter.xsl
+++ b/utility/formatter.xsl
@@ -25,7 +25,7 @@
 	<xsl:variable name="formatted_expression">
 		<xsl:call-template name="plain_formatter">
 			<xsl:with-param name="format">
-				<xsl:text>katex </xsl:text>
+				<xsl:text>./utility/katex/wrapper </xsl:text>
 				<xsl:value-of select="$arguments"/>
 			</xsl:with-param>
 			<xsl:with-param name="source" select="$source"/>
@@ -107,7 +107,7 @@
 		<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="source" select="substring(text(),3,string-length(text())-4)"/>
 					<xsl:with-param name="arguments">
 						<xsl:text>--display-mode</xsl:text>
 					</xsl:with-param>
@@ -117,7 +117,7 @@
 		<xsl:otherwise>
 			<span class="math">
 				<xsl:call-template name="math_highlighter">
-					<xsl:with-param name="source" select="text()"/>
+					<xsl:with-param name="source" select="substring(text(),3,string-length(text())-4)"/>
 				</xsl:call-template>
 			</span>
 		</xsl:otherwise>
diff --git a/utility/katex/katex.min.js b/utility/katex/katex.min.js
new file mode 100644
index 0000000..d574cc3
--- /dev/null
+++ b/utility/katex/katex.min.js
@@ -0,0 +1 @@
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