{% macro _shared_parameters() %}
				<xsl:with-param name="period">
					<xsl:choose>
						<xsl:when test="{$period_condition}">
							<xsl:value-of select="@period" />
						</xsl:when>
						<!-- This also covers the case of @period being undefined. -->
						<xsl:otherwise>
							<xsl:message terminate="yes">
								<xsl:text>Attribute "period" must be one of the values {$period_list}.</xsl:text>
							</xsl:message>
						</xsl:otherwise>
					</xsl:choose>
				</xsl:with-param>
	
				<xsl:with-param name="week">
					<xsl:value-of select="@week" />
					<xsl:if test="not( @week )">
						<xsl:message terminate="yes">
							<xsl:text>The "week" attribute is required.</xsl:text>
						</xsl:message>
					</xsl:if>
				</xsl:with-param>
{%- endmacro -%}

<?xml version="1.0" encoding="utf-8"?>


<!--
	AUTOMATICALLY GENERATED ---DO NOT EDIT! This is automatically generated by ../generate_calendar_dates.php!
	
	Elements and templates for generating teaching period dates. Apart from the wrapper templates, this essentially boils down to a giant parameterised lookup table, which is generated by a script.
-->


<stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

	
	<!--
		Generate a date for a given teaching week in a teaching period, in the specified format. Return the date of the Monday of the week, plus an optional signed offset.
		
		@period: The teaching period for which to generate the date. [required]
		
		@week: The number of the week in the specified teaching period. [required]
		
		@format: How to format the date.
			'day+long-name' => [FNn] [D] [MNn] (e.g., Friday 10 August)
			'day+short-name' => [FNn,*-3] [D] [MNn] (e.g., Fri 10 August)
			'day' => [D] [MNn] (e.g., 10 August)
			'day-short' => [D] [MNn,*-3] (e.g., 10 Aug)
			'day+year' => [D] [MNn], [Y] (e.g., 10 August, 2013)
			'day-short+year' => [D] [MNn,*-3], [Y] (e.g., 10 Aug, 2013)
			'ISO' => [Y0001]-[M01]-[D01] (e.g., 2012-08-10)
			date picture string => Any valid XSLT date picture specification (see http://www.w3.org/TR/xslt20/#date-picture-string).
		
		@offset: A signed offset specified as an XSLT duration, e.g., "P1D" for plus one day, "-P4D" for minus four days.
	-->
	<template name="TeachingPeriodDate" match="TeachingPeriodDate">
		<common>
			<xsl:call-template name="format-teaching-date">{{ _shared_parameters() }}

				<xsl:with-param name="format">
					<xsl:choose>
						<!-- Named date formats. -->
						<xsl:when test="@format = 'day+long-name'">
							<xsl:text>[FNn] [D] [MNn]</xsl:text>
						</xsl:when>
						<xsl:when test="@format = 'day+short-name'">
							<xsl:text>[FNn,*-3] [D] [MNn]</xsl:text>
						</xsl:when>
						<xsl:when test="@format = 'day'">
							<xsl:text>[D] [MNn]</xsl:text>
						</xsl:when>
						<xsl:when test="@format = 'day-short'">
							<xsl:text>[D] [MNn,*-3]</xsl:text>
						</xsl:when>
						<xsl:when test="@format = 'day+year'">
							<xsl:text>[D] [MNn], [Y]</xsl:text>
						</xsl:when>
						<xsl:when test="@format = 'day-short+year'">
							<xsl:text>[D] [MNn,*-3], [Y]</xsl:text>
						</xsl:when>
						<xsl:when test="@format = 'ISO'">
							<xsl:text>[Y0001]-[M01]-[D01]</xsl:text>
						</xsl:when>
						<xsl:otherwise>
							<xsl:value-of select="@format" />
						</xsl:otherwise>
					</xsl:choose>
					<xsl:if test="not( @format )">
						<xsl:text>[Y0001]-[M01]-[D01]</xsl:text>
					</xsl:if>
				</xsl:with-param>
	
				<xsl:with-param name="offset">
					<xsl:value-of select="@offset" />
					<xsl:if test="not( @offset )">
						<xsl:text>P0D</xsl:text>
					</xsl:if>
				</xsl:with-param>
			</xsl:call-template>
		</common>
	</template>
	
	
	<!--
		Generate a date range corresponding to a given teaching week in a teaching period (i.e., Monday to Friday).
		
		@period: The teaching period for which to generate the date. [required]
		
		@week: The number of the week in the specified teaching period. [required]
		
		@format: How to format the month name in the date range.
			'long' => Output the full month name (e.g., August)
			'short' => Output only the first three characters of the month name (e.g., Aug)
		
		@wrap: Whether to wrap the date range across two lines (usually for insertion into a narrow cell in a calendar table).
			'true' [default]
			'false'
	-->
	<template name="TeachingPeriodDateRange" match="TeachingPeriodDateRange">
		<common>
			<xsl:call-template name="format-teaching-date-range">{{ _shared_parameters() }}

				<xsl:with-param name="month-format">
					<xsl:choose>
						<xsl:when test="@format = 'long'">
							<xsl:text>[MNn]</xsl:text>
						</xsl:when>
						<xsl:when test="@format = 'short'">
							<xsl:text>[MNn,*-3]</xsl:text>
						</xsl:when>
						<xsl:otherwise>
							<xsl:message terminate="yes">
								<xsl:text>Attribute "format" must be either "long" or "short", not "</xsl:text>
								<xsl:value-of select="@format" />
								<xsl:text>".</xsl:text>
							</xsl:message>
						</xsl:otherwise>
					</xsl:choose>
				</xsl:with-param>
				
				<!-- Convert @wrap into a boolean value. -->
				<xsl:with-param name="wrap">
					<xsl:value-of select="@wrap = 'yes'" />
				</xsl:with-param>
			</xsl:call-template>
		</common>
	</template>
	
{# generated templates go here #}

</stylesheet>