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Initial implemention of XPath parsing / name-prefixing; see #45
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toolchains/xslt-proto-v04/metapath/parse-metapath-test.xsl
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<?xml version="1.0" encoding="UTF-8"?> | ||
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" | ||
xmlns:xs="http://www.w3.org/2001/XMLSchema" | ||
xmlns:math="http://www.w3.org/2005/xpath-functions/math" | ||
exclude-result-prefixes="xs math" | ||
version="3.0" | ||
xmlns:m="http://csrc.nist.gov/ns/oscal/metaschema/1.0" | ||
xmlns:mp="http://csrc.nist.gov/ns/oscal/metapath/1.0" | ||
xmlns:p="xpath20"> | ||
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<xsl:import href="parse-metapath.xsl"/> | ||
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<xsl:output indent="yes"/> | ||
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<xsl:mode on-no-match="shallow-skip"/> | ||
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<!--<xsl:variable name="target-namespace" select="string(/m:METASCHEMA/m:namespace)"/> | ||
<xsl:variable name="declaration-prefix" select="string(/m:METASCHEMA/m:short-name)"/> | ||
--> | ||
<xsl:template match="/"> | ||
<xsl:variable name="path">@pink[../link/@href='.']</xsl:variable> | ||
<test> | ||
<path> | ||
<xsl:value-of select="mp:prefixed-path($path)"/> | ||
</path> | ||
<xsl:sequence select="p:parse-XPath($path)"/> | ||
</test> | ||
</xsl:template> | ||
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</xsl:stylesheet> |
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<?xml version="1.0" encoding="UTF-8"?> | ||
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" | ||
xmlns:xs="http://www.w3.org/2001/XMLSchema" | ||
xmlns:math="http://www.w3.org/2005/xpath-functions/math" | ||
xmlns:m="http://csrc.nist.gov/ns/oscal/metaschema/1.0" | ||
exclude-result-prefixes="#all" | ||
version="3.0" | ||
xmlns:mp="http://csrc.nist.gov/ns/oscal/metapath/1.0" | ||
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xmlns:p="xpath20"> | ||
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<xsl:import href="REx/xpath20.xslt"/> | ||
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<xsl:output indent="yes"/> | ||
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<xsl:mode on-no-match="shallow-skip"/> | ||
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<xsl:param name="declaration-prefix" select="(/m:METASCHEMA/m:short-name/string(.),'PRFX')[1]"/> | ||
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<xsl:function name="mp:prefixed-path" as="xs:string"> | ||
<xsl:param name="expr" as="xs:string"/> | ||
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<xsl:variable name="parse.tree" select="p:parse-XPath($expr)"/> | ||
<xsl:value-of> | ||
<xsl:apply-templates select="$parse.tree" mode="prefix-ncnames"/> | ||
</xsl:value-of> | ||
</xsl:function> | ||
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<xsl:template match="AxisStep/*[not(ForwardAxis/TOKEN=('@','attribute'))]/NodeTest/NameTest/QName[not(contains(.,':'))]" mode="prefix-ncnames"> | ||
<xsl:value-of select="$declaration-prefix[matches(.,'\S')] ! (. || ':')"/> | ||
<xsl:next-match/> | ||
</xsl:template> | ||
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<xsl:template match="AxisStep/*/AbbrevForwardStep[not(TOKEN='@')]/NodeTest/NameTest/QName[not(contains(.,':'))]" mode="prefix-ncnames"> | ||
<xsl:value-of select="$declaration-prefix[matches(.,'\S')] ! (. || ':')"/> | ||
<xsl:next-match/> | ||
</xsl:template> | ||
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<xsl:function name="mp:xpath-eval-okay" as="xs:boolean"> | ||
<xsl:param name="expr" as="xs:string"/> | ||
<xsl:variable name="any.place" as="element()"><mp:any/></xsl:variable> | ||
<!-- this filter assumes that a successful parse does not deliver mp:ERROR (hah) --> | ||
<xsl:sequence select="empty(mp:try-xpath-eval($expr,$any.place)/mp:ERROR)"/> | ||
</xsl:function> | ||
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<xsl:function name="mp:try-xpath-eval" as="element()"> | ||
<xsl:param name="expr" as="xs:string"/> | ||
<xsl:param name="from" as="node()"/> | ||
<xsl:message expand-text="true">expr: { $expr } from: { name($from) }</xsl:message> | ||
<mp:try> | ||
<xsl:try xmlns:err="http://www.w3.org/2005/xqt-errors"> | ||
<xsl:evaluate context-item="$from" xpath="$expr"/> | ||
<xsl:catch expand-text="true"> | ||
<mp:ERROR code="{ $err:code}">{ $err:description }</mp:ERROR> | ||
</xsl:catch> | ||
</xsl:try> | ||
</mp:try> | ||
</xsl:function> | ||
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</xsl:stylesheet> |