f:apply implemented
Although the general concept was independently discovered, the finer details of this implementation are motivated by the excellent, comprehensive work of Dimitre Novatchev[0]. For those of us who either can't, or don't wish to, abaondon XSLT. [0]: http://conferences.idealliance.org/extreme/html/2006/Novatchev01/EML2006Novatchev01.htmlmaster
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<?xml version="1.0" encoding="ISO-8859-1"?>
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<!--
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Dynamic function application
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Copyright (C) 2014 LoVullo Associates, Inc.
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This file is part of hoxsl.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
|
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the Free Software Foundation, either version 3 of the License, or
|
||||
(at your option) any later version.
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||||
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||||
This program is distributed in the hope that it will be useful,
|
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but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
|
||||
along with this program. If not, see <http://www.gnu.org/licenses/>.
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This can be used to create higher-order functions.
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If you need more arguments than this, then you may want to consider
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another approach.
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-->
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<stylesheet version="2.0"
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xmlns="http://www.w3.org/1999/XSL/Transform"
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xmlns:xs="http://www.w3.org/2001/XMLSchema"
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xmlns:f="http://www.lovullo.com/xslink/apply">
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<function name="f:apply">
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<param name="fnref" as="element()" />
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<apply-templates select="$fnref" mode="f:apply" />
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</function>
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<function name="f:apply">
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<param name="fnref" as="element()" />
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<param name="arg1" />
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<apply-templates select="$fnref" mode="f:apply">
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<with-param name="arg1" select="$arg1" />
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</apply-templates>
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</function>
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<function name="f:apply">
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<param name="fnref" as="element()" />
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<param name="arg1" />
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<param name="arg2" />
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<apply-templates select="$fnref" mode="f:apply">
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<with-param name="arg1" select="$arg1" />
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<with-param name="arg2" select="$arg2" />
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</apply-templates>
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</function>
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<function name="f:apply">
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<param name="fnref" as="element()" />
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<param name="arg1" />
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<param name="arg2" />
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<param name="arg3" />
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<apply-templates select="$fnref" mode="f:apply">
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<with-param name="arg1" select="$arg1" />
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<with-param name="arg2" select="$arg2" />
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<with-param name="arg3" select="$arg3" />
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</apply-templates>
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</function>
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<function name="f:apply">
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<param name="fnref" as="element()" />
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<param name="arg1" />
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<param name="arg2" />
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<param name="arg3" />
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<param name="arg4" />
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<apply-templates select="$fnref" mode="f:apply">
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<with-param name="arg1" select="$arg1" />
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<with-param name="arg2" select="$arg2" />
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<with-param name="arg3" select="$arg3" />
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<with-param name="arg4" select="$arg4" />
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</apply-templates>
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</function>
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<function name="f:apply">
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<param name="fnref" as="element()" />
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<param name="arg1" />
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<param name="arg2" />
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<param name="arg3" />
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<param name="arg4" />
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<param name="arg5" />
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<apply-templates select="$fnref" mode="f:apply">
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<with-param name="arg1" select="$arg1" />
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<with-param name="arg2" select="$arg2" />
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<with-param name="arg3" select="$arg3" />
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<with-param name="arg4" select="$arg4" />
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<with-param name="arg5" select="$arg5" />
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</apply-templates>
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</function>
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<function name="f:apply">
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<param name="fnref" as="element()" />
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<param name="arg1" />
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<param name="arg2" />
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<param name="arg3" />
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<param name="arg4" />
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<param name="arg5" />
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<param name="arg6" />
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<apply-templates select="$fnref" mode="f:apply">
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<with-param name="arg1" select="$arg1" />
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<with-param name="arg2" select="$arg2" />
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<with-param name="arg3" select="$arg3" />
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<with-param name="arg4" select="$arg4" />
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<with-param name="arg5" select="$arg5" />
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<with-param name="arg6" select="$arg6" />
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</apply-templates>
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</function>
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<function name="f:apply">
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<param name="fnref" as="element()" />
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<param name="arg1" />
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<param name="arg2" />
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<param name="arg3" />
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<param name="arg4" />
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<param name="arg5" />
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<param name="arg6" />
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<param name="arg7" />
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<apply-templates select="$fnref" mode="f:apply">
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<with-param name="arg1" select="$arg1" />
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<with-param name="arg2" select="$arg2" />
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<with-param name="arg3" select="$arg3" />
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<with-param name="arg4" select="$arg4" />
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<with-param name="arg5" select="$arg5" />
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<with-param name="arg6" select="$arg6" />
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<with-param name="arg7" select="$arg7" />
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</apply-templates>
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</function>
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<function name="f:apply">
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<param name="fnref" as="element()" />
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<param name="arg1" />
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<param name="arg2" />
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<param name="arg3" />
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<param name="arg4" />
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<param name="arg5" />
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<param name="arg6" />
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<param name="arg7" />
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<param name="arg8" />
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<apply-templates select="$fnref" mode="f:apply">
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<with-param name="arg1" select="$arg1" />
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<with-param name="arg2" select="$arg2" />
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<with-param name="arg3" select="$arg3" />
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<with-param name="arg4" select="$arg4" />
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<with-param name="arg5" select="$arg5" />
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<with-param name="arg6" select="$arg6" />
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<with-param name="arg7" select="$arg7" />
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<with-param name="arg8" select="$arg8" />
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</apply-templates>
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</function>
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<!--
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Abort processing on unknown function reference
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This will occur if no application template is defined for the
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given function reference. Override it if you wish to perform
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autoloading or what have you.
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If you generate the nullary and application template using
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apply-gen, then you won't have to worry about this.
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-->
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<template mode="f:apply"
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match="*"
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priority="1">
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<message terminate="yes">
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<text>error: cannot apply unknown function reference: </text>
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<copy-of select="." />
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</message>
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</template>
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</stylesheet>
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@ -0,0 +1,123 @@
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<?xml version="1.0" encoding="utf-8"?>
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<!--
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Tests dynamic function application
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Copyright (C) 2014 LoVullo Associates, Inc.
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This file is part of hoxsl.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
|
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(at your option) any later version.
|
||||
|
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
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GNU General Public License for more details.
|
||||
|
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You should have received a copy of the GNU General Public License
|
||||
along with this program. If not, see <http://www.gnu.org/licenses/>.
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-->
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<stylesheet version="2.0"
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xmlns="http://www.w3.org/1999/XSL/Transform"
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xmlns:f="http://www.lovullo.com/xslink/apply"
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xmlns:foo="http://www.lovullo.com/_junk">
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<import href="../src/apply.xsl" />
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<template mode="f:apply" match="foo:fn0">
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<!-- return something to show that we were called properly -->
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<sequence select="0" />
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</template>
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<template mode="f:apply" match="foo:fn1">
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<param name="arg1" />
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<sequence select="string($arg1)" />
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</template>
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<template mode="f:apply" match="foo:fn2">
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<param name="arg1" />
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<param name="arg2" />
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<sequence select="concat($arg1, $arg2)" />
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</template>
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<template mode="f:apply" match="foo:fn3">
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<param name="arg1" />
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<param name="arg2" />
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<param name="arg3" />
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<sequence select="concat($arg1, $arg2, $arg3)" />
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</template>
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<template mode="f:apply" match="foo:fn4">
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<param name="arg1" />
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<param name="arg2" />
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<param name="arg3" />
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<param name="arg4" />
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<sequence select="concat($arg1, $arg2, $arg3, $arg4)" />
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</template>
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<template mode="f:apply" match="foo:fn5">
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<param name="arg1" />
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<param name="arg2" />
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<param name="arg3" />
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<param name="arg4" />
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<param name="arg5" />
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<sequence select="concat($arg1, $arg2, $arg3, $arg4,
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$arg5)" />
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</template>
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<template mode="f:apply" match="foo:fn6">
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<param name="arg1" />
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<param name="arg2" />
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<param name="arg3" />
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<param name="arg4" />
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<param name="arg5" />
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<param name="arg6" />
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<sequence select="concat($arg1, $arg2, $arg3, $arg4,
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$arg5, $arg6)" />
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</template>
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<template mode="f:apply" match="foo:fn7">
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<param name="arg1" />
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<param name="arg2" />
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<param name="arg3" />
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<param name="arg4" />
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<param name="arg5" />
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<param name="arg6" />
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<param name="arg7" />
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<sequence select="concat($arg1, $arg2, $arg3, $arg4,
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$arg5, $arg6, $arg7)" />
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</template>
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<template mode="f:apply" match="foo:fn8">
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<param name="arg1" />
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<param name="arg2" />
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<param name="arg3" />
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<param name="arg4" />
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<param name="arg5" />
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<param name="arg6" />
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<param name="arg7" />
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<param name="arg8" />
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<sequence select="concat($arg1, $arg2, $arg3, $arg4,
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$arg5, $arg6, $arg7, $arg8)" />
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</template>
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</stylesheet>
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@ -0,0 +1,175 @@
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<?xml version="1.0" encoding="utf-8"?>
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<!--
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Tests dynamic function application
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Copyright (C) 2014 LoVullo Associates, Inc.
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This file is part of hoxsl.
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|
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
|
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(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
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||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
|
||||
|
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You should have received a copy of the GNU General Public License
|
||||
along with this program. If not, see <http://www.gnu.org/licenses/>.
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-->
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<description xmlns="http://www.jenitennison.com/xslt/xspec"
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xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
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xmlns:f="http://www.lovullo.com/xslink/apply"
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xmlns:foo="http://www.lovullo.com/_junk"
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stylesheet="apply-test.xsl">
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<scenario label="f:apply">
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<scenario label="applied to a function reference element">
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<variable name="arg"
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select="'foo'" />
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<call function="f:apply">
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<param name="fnref">
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<foo:fn1 />
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</param>
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<param name="arg1" select="$arg" />
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</call>
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<!-- our test appliaction template simply echoes back its only
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argument -->
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<expect label="applies application template with mode f:apply"
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test="$x:result = ($arg)" />
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</scenario>
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<scenario label="applying">
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<scenario label="nullary function">
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<call function="f:apply">
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<param name="fnref"><foo:fn0 /></param>
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</call>
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<expect label="passes each argument"
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test="$x:result = 0" />
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</scenario>
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<scenario label="unary function">
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<call function="f:apply">
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<param name="fnref"><foo:fn1 /></param>
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<param name="arg1" select="1" />
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</call>
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<expect label="passes each argument"
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test="$x:result = '1'" />
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</scenario>
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<scenario label="binary function">
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<call function="f:apply">
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<param name="fnref"><foo:fn2 /></param>
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<param name="arg1" select="1" />
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<param name="arg2" select="2" />
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</call>
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<expect label="passes each argument"
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test="$x:result = '12'" />
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</scenario>
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<scenario label="ternary function">
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<call function="f:apply">
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<param name="fnref"><foo:fn3 /></param>
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<param name="arg1" select="1" />
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<param name="arg2" select="2" />
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<param name="arg3" select="3" />
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</call>
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<expect label="passes each argument"
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test="$x:result = '123'" />
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</scenario>
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<scenario label="4-ary function">
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<call function="f:apply">
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<param name="fnref"><foo:fn4 /></param>
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<param name="arg1" select="1" />
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<param name="arg2" select="2" />
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<param name="arg3" select="3" />
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<param name="arg4" select="4" />
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</call>
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<expect label="passes each argument"
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test="$x:result = '1234'" />
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</scenario>
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<scenario label="5-ary function">
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<call function="f:apply">
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<param name="fnref"><foo:fn5 /></param>
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<param name="arg1" select="1" />
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<param name="arg2" select="2" />
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<param name="arg3" select="3" />
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<param name="arg4" select="4" />
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<param name="arg5" select="5" />
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</call>
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<expect label="passes each argument"
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test="$x:result = '12345'" />
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</scenario>
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<scenario label="6-ary function">
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<call function="f:apply">
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<param name="fnref"><foo:fn6 /></param>
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<param name="arg1" select="1" />
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<param name="arg2" select="2" />
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<param name="arg3" select="3" />
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<param name="arg4" select="4" />
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<param name="arg5" select="5" />
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<param name="arg6" select="6" />
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</call>
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<expect label="passes each argument"
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test="$x:result = '123456'" />
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</scenario>
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<scenario label="7-ary function">
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<call function="f:apply">
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<param name="fnref"><foo:fn7 /></param>
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<param name="arg1" select="1" />
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<param name="arg2" select="2" />
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<param name="arg3" select="3" />
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<param name="arg4" select="4" />
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<param name="arg5" select="5" />
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<param name="arg6" select="6" />
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<param name="arg7" select="7" />
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</call>
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<expect label="passes each argument"
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test="$x:result = '1234567'" />
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</scenario>
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<scenario label="8-ary function">
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<call function="f:apply">
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<param name="fnref"><foo:fn8 /></param>
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<param name="arg1" select="1" />
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<param name="arg2" select="2" />
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<param name="arg3" select="3" />
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<param name="arg4" select="4" />
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<param name="arg5" select="5" />
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<param name="arg6" select="6" />
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<param name="arg7" select="7" />
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<param name="arg8" select="8" />
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</call>
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<expect label="passes each argument"
|
||||
test="$x:result = '12345678'" />
|
||||
</scenario>
|
||||
</scenario>
|
||||
</scenario>
|
||||
</description>
|
||||
Loading…
Reference in New Issue