tame/src/current/c1map/valparse.xsl

149 lines
4.3 KiB
XML

<?xml version="1.0" encoding="ISO-8859-1"?>
<!--
Inline value parser
Copyright (C) 2016 R-T Specialty, LLC.
This file is part of TAME.
TAME is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see
<http://www.gnu.org/licenses/>.
Will parse all attributes and text of the form "a{b}c", where `b' is some
variable.
-->
<xsl:stylesheet version="2.0"
xmlns:c1="http://www.epic-premier.com/XMLSchema"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:lvm="http://www.lovullo.com/rater/map/c1"
xmlns:lvmp="http://www.lovullo.com/rater/map/c1/pp">
<xsl:template match="@*|text()" mode="lvm:valparse">
<xsl:call-template name="lvm:valparse">
<xsl:with-param name="str" select="." />
</xsl:call-template>
</xsl:template>
<xsl:template name="lvm:valparse">
<xsl:param name="str" />
<xsl:variable name="pre" select="substring-before( $str, '{' )" />
<xsl:variable name="post" select="substring-after( $str, '}' )" />
<!-- get stuff between the two -->
<xsl:variable name="postpre" select="substring-after( $str, '{' )" />
<xsl:variable name="val" select="substring-before( $postpre, '}' )" />
<xsl:if test="$pre">
<xsl:text>'</xsl:text>
<!-- TODO: escape -->
<xsl:value-of select="$pre" />
<xsl:text>' . </xsl:text>
</xsl:if>
<xsl:choose>
<!-- variable reference -->
<xsl:when test="$val">
<xsl:call-template name="lvmp:gen-val">
<xsl:with-param name="name" select="$val" />
</xsl:call-template>
</xsl:when>
<!-- static value; no variable -->
<xsl:otherwise>
<xsl:text>'</xsl:text>
<xsl:value-of select="$str" />
<xsl:text>'</xsl:text>
</xsl:otherwise>
</xsl:choose>
<xsl:if test="$post">
<xsl:text> . '</xsl:text>
<!-- TODO: escape -->
<xsl:value-of select="$post" />
<xsl:text>'</xsl:text>
</xsl:if>
</xsl:template>
<!--
Generate a variable reference for later rendering
If a variable of the form x.y is found, it is recursively processed with `y'
as the variable and `x' as the context: a dictionary lookup.
-->
<xsl:template name="lvmp:gen-val">
<xsl:param name="name" />
<xsl:variable name="trans" select="
ancestor::lvm:c1-map/lvmp:translate[ @name=$name ]
" />
<xsl:choose>
<!-- name translation requested -->
<xsl:when test="$trans">
<xsl:call-template name="lvmp:do-gen-val">
<xsl:with-param name="name" select="$trans/@to" />
</xsl:call-template>
</xsl:when>
<!-- no translation; use name as-is -->
<xsl:otherwise>
<xsl:call-template name="lvmp:do-gen-val">
<xsl:with-param name="name" select="$name" />
</xsl:call-template>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<xsl:template name="lvmp:do-gen-val">
<xsl:param name="name" />
<!-- we may have a variable of the form `x.y', in which case we should
process `y' withint he context of `x' -->
<xsl:variable name="rightmost" select="
substring-after( $name, '.' )
" />
<xsl:choose>
<!-- no more key references -->
<xsl:when test="$rightmost = ''">
<lvmp:value ref="{$name}" />
</xsl:when>
<!-- recursively process key reference -->
<xsl:otherwise>
<!-- determine the key context, which is the entire base sans the
rightmost variable name -->
<xsl:variable name="context" select="
substring( $name, 1, (
string-length( $name ) - string-length( $rightmost ) - 1
) )
" />
<lvmp:value ref="{$rightmost}" index-key="{$context}">
<xsl:call-template name="lvmp:gen-val">
<xsl:with-param name="name" select="$context" />
</xsl:call-template>
</lvmp:value>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
</xsl:stylesheet>