78 lines
2.6 KiB
XML
78 lines
2.6 KiB
XML
<?xml version="1.0"?>
|
|
<!--
|
|
Copyright (C) 2014-2022 Ryan Specialty Group, 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="Template Generation">
|
|
|
|
|
|
This package provides various templates for generating templates and
|
|
iterating using templates.
|
|
In essense,
|
|
this package is intended to abstract away certain implementation details
|
|
and complexities that make groking code more difficult;
|
|
they should be used when possible to improve code maintenance.
|
|
|
|
|
|
<section title="Iteration">
|
|
\ref{_for-each-n_} recurisvely produces the body~\tt{@values@} given a
|
|
numeric range and step.
|
|
This can also be used to generate sequences at compile-time rather than
|
|
using functions,
|
|
provided that the sequence data are static.
|
|
|
|
<template name="_for-each-n_"
|
|
desc="Recursively apply body with counter and step">
|
|
<param name="@values@" desc="Body" />
|
|
<param name="@start@" desc="Counter start" />
|
|
<param name="@end@" desc="Counter end" />
|
|
<param name="@step@" desc="Counter step" />
|
|
|
|
|
|
<param name="@next_n@" desc="Next iteration value">
|
|
<param-add name="@start@" value="@step@" />
|
|
</param>
|
|
|
|
<param name="@n_dec@" desc="Current n - 1">
|
|
<param-add name="@start@" value="-1" />
|
|
</param>
|
|
|
|
|
|
<!-- inefficient trick to expose @current_n@ to the body -->
|
|
<inline-template>
|
|
<for-each>
|
|
<set current_n="@start@" current_n_dec="@n_dec@" />
|
|
</for-each>
|
|
|
|
<param-copy name="@values@" />
|
|
</inline-template>
|
|
|
|
|
|
<!-- repeat body for each step, as sibling -->
|
|
<unless name="@start@" eq="@end@">
|
|
<t:for-each-n start="@next_n@" end="@end@" step="@step@">
|
|
<param-copy name="@values@" />
|
|
</t:for-each-n>
|
|
</unless>
|
|
</template>
|
|
</section>
|
|
</package>
|