Mike Gerwitz

Activist for User Freedom

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<?xml version="1.0"?>
<!--
  Copyright (C) 2018 R-T Specialty, LLC.

  This file is part of tame-core.

  tame-core 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/>.
-->
<package xmlns="http://www.lovullo.com/rater"
         xmlns:c="http://www.lovullo.com/calc"
         xmlns:t="http://www.lovullo.com/rater/apply-template"
         core="true"
         desc="When Matching">

  <import package="base" />


  This package deals with matching in calculations (such as case statements
    or values);
    for classifications, see \tt{vector/cmatch}.


  <inline-template>
    <for-each>
      <set cmp="eq" />
      <set cmp="ne" />
      <set cmp="gt" />
      <set cmp="gte" />
      <set cmp="lt" />
      <set cmp="lte" />
    </for-each>


    <template name="_when-{@cmp@}_" desc="Value predicate {@cmp@}">
      <param name="@name@" desc="Name to assert against" />

      <param name="@index@" desc="Name index (optional)">
        <text></text>
      </param>

      <!-- former exists only for consistency with cmatch templates and will
           produce an error -->
      <param name="@const@" desc="Match against constant value" />
      <param name="@value@" desc="Match against variable" />

      <param name="@value_index@" desc="Value index (optional)">
        <text></text>
      </param>


      <if name="@const@">
        <error>
          @const@ is deprecated; use @value@ with a #-prefix instead.
        </error>
      </if>


      <c:when name="@name@" index="@index@">
        <dyn-node name="c:{@cmp@}">
          <c:value-of name="@value@" index="@value_index@" />
        </dyn-node>
      </c:when>
    </template>
  </inline-template>
</package>