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|
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|
||
<span class="md-ellipsis">
|
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Aux
|
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</span>
|
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|
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|
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<span class="md-nav__icon md-icon"></span>
|
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<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
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|
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<a href="../../../Lix/" class="md-nav__link">
|
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|
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|
||
<span class="md-ellipsis">
|
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Lix
|
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</span>
|
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|
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|
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<span class="md-nav__icon md-icon"></span>
|
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|
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|
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<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
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|
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<a href="../../../NixOS/appstream/" class="md-nav__link">
|
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|
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|
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<span class="md-ellipsis">
|
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NixOS
|
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</span>
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|
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|
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<span class="md-nav__icon md-icon"></span>
|
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|
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</a>
|
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|
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<li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
|
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|
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|
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|
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<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_6" checked>
|
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|
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|
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|
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<div class="md-nav__link md-nav__container">
|
||
<a href="../../" class="md-nav__link ">
|
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|
||
|
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<span class="md-ellipsis">
|
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Nixpkgs
|
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</span>
|
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|
||
|
||
</a>
|
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|
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|
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<label class="md-nav__link " for="__nav_6" id="__nav_6_label" tabindex="">
|
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<span class="md-nav__icon md-icon"></span>
|
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</label>
|
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|
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</div>
|
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|
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<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_6_label" aria-expanded="true">
|
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<label class="md-nav__title" for="__nav_6">
|
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<span class="md-nav__icon md-icon"></span>
|
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Nixpkgs
|
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</label>
|
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<ul class="md-nav__list" data-md-scrollfix>
|
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|
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|
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|
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|
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|
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|
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|
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|
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<li class="md-nav__item">
|
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<a href="../../options/" class="md-nav__link">
|
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|
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|
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<span class="md-ellipsis">
|
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Options
|
||
</span>
|
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|
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|
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</a>
|
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</li>
|
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|
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|
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<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
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|
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|
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|
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<a href="../../Build-Helpers/" class="md-nav__link">
|
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|
||
|
||
<span class="md-ellipsis">
|
||
Build Helpers
|
||
</span>
|
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|
||
|
||
|
||
<span class="md-nav__icon md-icon"></span>
|
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|
||
</a>
|
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|
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|
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|
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</li>
|
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|
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<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
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|
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|
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|
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<a href="../../Development/" class="md-nav__link">
|
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|
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|
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<span class="md-ellipsis">
|
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Development
|
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</span>
|
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|
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|
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|
||
<span class="md-nav__icon md-icon"></span>
|
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|
||
</a>
|
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|
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|
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|
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</li>
|
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|
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|
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|
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<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
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|
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|
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|
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|
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<a href="../../Functions/" class="md-nav__link">
|
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|
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|
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<span class="md-ellipsis">
|
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Functions
|
||
</span>
|
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|
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|
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|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
</a>
|
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|
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|
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|
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</li>
|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
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|
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|
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|
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|
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<a href="../../Hooks/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
Hooks
|
||
</span>
|
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|
||
|
||
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
|
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|
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|
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|
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<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
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|
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|
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|
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<a href="../../Languages-And-Frameworks/" class="md-nav__link">
|
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|
||
|
||
<span class="md-ellipsis">
|
||
Languages And Frameworks
|
||
</span>
|
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|
||
|
||
|
||
<span class="md-nav__icon md-icon"></span>
|
||
|
||
</a>
|
||
|
||
|
||
|
||
</li>
|
||
|
||
|
||
|
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|
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|
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|
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|
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|
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|
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|
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|
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|
||
|
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|
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|
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|
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|
||
|
||
|
||
|
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|
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|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
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|
||
<li class="md-nav__item md-nav__item--active md-nav__item--nested">
|
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|
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|
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|
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<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_6_8" checked>
|
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|
||
|
||
<label class="md-nav__link" for="__nav_6_8" id="__nav_6_8_label" tabindex="0">
|
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|
||
|
||
<span class="md-ellipsis">
|
||
Library Reference
|
||
</span>
|
||
|
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|
||
<span class="md-nav__icon md-icon"></span>
|
||
</label>
|
||
|
||
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_6_8_label" aria-expanded="true">
|
||
<label class="md-nav__title" for="__nav_6_8">
|
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<span class="md-nav__icon md-icon"></span>
|
||
Library Reference
|
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</label>
|
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<ul class="md-nav__list" data-md-scrollfix>
|
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|
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|
||
|
||
|
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|
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|
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|
||
<li class="md-nav__item">
|
||
<a href="../asserts/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
lib.asserts: assertion functions
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../attrsets/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
lib.attrsets: attribute set functions
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../cli/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
lib.cli: command-line serialization functions
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../customisation/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
lib.customisation: Functions to customise (derivation-related) functions, derivatons, or attribute sets
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../debug/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
lib.debug: debugging functions
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../derivations/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
lib.derivations: miscellaneous derivation-specific functions
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../fileset/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
lib.fileset: file set functions
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../filesystem/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
lib.filesystem: filesystem functions
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../fixedPoints/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
lib.fixedPoints: explicit recursion functions
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../generators/" class="md-nav__link">
|
||
|
||
|
||
<span class="md-ellipsis">
|
||
lib.generators: functions that create file formats from nix data structures
|
||
</span>
|
||
|
||
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="md-nav__item">
|
||
<a href="../gvariant/" class="md-nav__link">
|
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||
|
||
|
||
|
||
<h1 id="sec-functions-library-strings">lib.strings: string manipulation functions</h1>
|
||
<p>String manipulation functions.</p>
|
||
<h2 id="function-library-lib.strings.concatStrings"><code>lib.strings.concatStrings</code></h2>
|
||
<p><strong>Type</strong>: <code>concatStrings :: [string] -> string</code></p>
|
||
<p>Concatenate a list of strings.</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<div class="highlight"><pre><span></span><code># `lib.strings.concatStrings` usage example
|
||
</code></pre></div>
|
||
<div class="highlight"><pre><span></span><code>concatStrings <span class="p">[</span><span class="s2">"foo"</span> <span class="s2">"bar"</span><span class="p">]</span>
|
||
<span class="o">=></span> <span class="s2">"foobar"</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L50">lib/strings.nix:50</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.concatMapStrings"><code>lib.strings.concatMapStrings</code></h2>
|
||
<p><strong>Type</strong>: <code>concatMapStrings :: (a -> string) -> [a] -> string</code></p>
|
||
<p>Map a function over a list and concatenate the resulting strings.</p>
|
||
<p><code>f</code></p>
|
||
<p>: Function argument</p>
|
||
<p><code>list</code></p>
|
||
<p>: Function argument</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringsconcatmapstrings-usage-example"><code>lib.strings.concatMapStrings</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>concatMapStrings <span class="p">(</span>x<span class="p">:</span> <span class="s2">"a"</span> <span class="o">+</span> x<span class="p">)</span> <span class="p">[</span><span class="s2">"foo"</span> <span class="s2">"bar"</span><span class="p">]</span>
|
||
<span class="o">=></span> <span class="s2">"afooabar"</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L60">lib/strings.nix:60</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.concatImapStrings"><code>lib.strings.concatImapStrings</code></h2>
|
||
<p><strong>Type</strong>: <code>concatImapStrings :: (int -> a -> string) -> [a] -> string</code></p>
|
||
<p>Like <code>concatMapStrings</code> except that the f functions also gets the
|
||
position as a parameter.</p>
|
||
<p><code>f</code></p>
|
||
<p>: Function argument</p>
|
||
<p><code>list</code></p>
|
||
<p>: Function argument</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringsconcatimapstrings-usage-example"><code>lib.strings.concatImapStrings</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>concatImapStrings <span class="p">(</span>pos<span class="p">:</span> x<span class="p">:</span> <span class="s2">"</span><span class="si">${</span><span class="nb">toString</span> pos<span class="si">}</span><span class="s2">-</span><span class="si">${</span>x<span class="si">}</span><span class="s2">"</span><span class="p">)</span> <span class="p">[</span><span class="s2">"foo"</span> <span class="s2">"bar"</span><span class="p">]</span>
|
||
<span class="o">=></span> <span class="s2">"1-foo2-bar"</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L71">lib/strings.nix:71</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.intersperse"><code>lib.strings.intersperse</code></h2>
|
||
<p><strong>Type</strong>: <code>intersperse :: a -> [a] -> [a]</code></p>
|
||
<p>Place an element between each element of a list</p>
|
||
<p><code>separator</code></p>
|
||
<p>: Separator to add between elements</p>
|
||
<p><code>list</code></p>
|
||
<p>: Input list</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringsintersperse-usage-example"><code>lib.strings.intersperse</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>intersperse <span class="s2">"/"</span> <span class="p">[</span><span class="s2">"usr"</span> <span class="s2">"local"</span> <span class="s2">"bin"</span><span class="p">]</span>
|
||
<span class="o">=></span> <span class="p">[</span><span class="s2">"usr"</span> <span class="s2">"/"</span> <span class="s2">"local"</span> <span class="s2">"/"</span> <span class="s2">"bin"</span><span class="p">]</span><span class="o">.</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L81">lib/strings.nix:81</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.concatStringsSep"><code>lib.strings.concatStringsSep</code></h2>
|
||
<p><strong>Type</strong>: <code>concatStringsSep :: string -> [string] -> string</code></p>
|
||
<p>Concatenate a list of strings with a separator between each element</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<div class="highlight"><pre><span></span><code># `lib.strings.concatStringsSep` usage example
|
||
</code></pre></div>
|
||
<div class="highlight"><pre><span></span><code>concatStringsSep <span class="s2">"/"</span> <span class="p">[</span><span class="s2">"usr"</span> <span class="s2">"local"</span> <span class="s2">"bin"</span><span class="p">]</span>
|
||
<span class="o">=></span> <span class="s2">"usr/local/bin"</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L98">lib/strings.nix:98</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.concatMapStringsSep"><code>lib.strings.concatMapStringsSep</code></h2>
|
||
<p><strong>Type</strong>: <code>concatMapStringsSep :: string -> (a -> string) -> [a] -> string</code></p>
|
||
<p>Maps a function over a list of strings and then concatenates the
|
||
result with the specified separator interspersed between
|
||
elements.</p>
|
||
<p><code>sep</code></p>
|
||
<p>: Separator to add between elements</p>
|
||
<p><code>f</code></p>
|
||
<p>: Function to map over the list</p>
|
||
<p><code>list</code></p>
|
||
<p>: List of input strings</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringsconcatmapstringssep-usage-example"><code>lib.strings.concatMapStringsSep</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>concatMapStringsSep <span class="s2">"-"</span> <span class="p">(</span>x<span class="p">:</span> toUpper x<span class="p">)</span> <span class="p">[</span><span class="s2">"foo"</span> <span class="s2">"bar"</span> <span class="s2">"baz"</span><span class="p">]</span>
|
||
<span class="o">=></span> <span class="s2">"FOO-BAR-BAZ"</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L110">lib/strings.nix:110</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.concatImapStringsSep"><code>lib.strings.concatImapStringsSep</code></h2>
|
||
<p><strong>Type</strong>: <code>concatIMapStringsSep :: string -> (int -> a -> string) -> [a] -> string</code></p>
|
||
<p>Same as <code>concatMapStringsSep</code>, but the mapping function
|
||
additionally receives the position of its argument.</p>
|
||
<p><code>sep</code></p>
|
||
<p>: Separator to add between elements</p>
|
||
<p><code>f</code></p>
|
||
<p>: Function that receives elements and their positions</p>
|
||
<p><code>list</code></p>
|
||
<p>: List of input strings</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringsconcatimapstringssep-usage-example"><code>lib.strings.concatImapStringsSep</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>concatImapStringsSep <span class="s2">"-"</span> <span class="p">(</span>pos<span class="p">:</span> x<span class="p">:</span> <span class="nb">toString</span> <span class="p">(</span>x <span class="o">/</span> pos<span class="p">))</span> <span class="p">[</span> <span class="mi">6</span> <span class="mi">6</span> <span class="mi">6</span> <span class="p">]</span>
|
||
<span class="o">=></span> <span class="s2">"6-3-2"</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L127">lib/strings.nix:127</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.concatLines"><code>lib.strings.concatLines</code></h2>
|
||
<p><strong>Type</strong>: <code>concatLines :: [string] -> string</code></p>
|
||
<p>Concatenate a list of strings, adding a newline at the end of each one.
|
||
Defined as <code>concatMapStrings (s: s + "\n")</code>.</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<div class="highlight"><pre><span></span><code># `lib.strings.concatLines` usage example
|
||
</code></pre></div>
|
||
<div class="highlight"><pre><span></span><code>concatLines <span class="p">[</span> <span class="s2">"foo"</span> <span class="s2">"bar"</span> <span class="p">]</span>
|
||
<span class="o">=></span> <span class="s2">"foo</span><span class="se">\n</span><span class="s2">bar</span><span class="se">\n</span><span class="s2">"</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L144">lib/strings.nix:144</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.replicate"><code>lib.strings.replicate</code></h2>
|
||
<p><strong>Type</strong>: <code>replicate :: int -> string -> string</code></p>
|
||
<p>Replicate a string n times,
|
||
and concatenate the parts into a new string.</p>
|
||
<p><code>n</code></p>
|
||
<p>: Function argument</p>
|
||
<p><code>s</code></p>
|
||
<p>: Function argument</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringsreplicate-usage-example"><code>lib.strings.replicate</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>replicate <span class="mi">3</span> <span class="s2">"v"</span>
|
||
<span class="o">=></span> <span class="s2">"vvv"</span>
|
||
replicate <span class="mi">5</span> <span class="s2">"hello"</span>
|
||
<span class="o">=></span> <span class="s2">"hellohellohellohellohello"</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L158">lib/strings.nix:158</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.makeSearchPath"><code>lib.strings.makeSearchPath</code></h2>
|
||
<p><strong>Type</strong>: <code>makeSearchPath :: string -> [string] -> string</code></p>
|
||
<p>Construct a Unix-style, colon-separated search path consisting of
|
||
the given <code>subDir</code> appended to each of the given paths.</p>
|
||
<p><code>subDir</code></p>
|
||
<p>: Directory name to append</p>
|
||
<p><code>paths</code></p>
|
||
<p>: List of base paths</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringsmakesearchpath-usage-example"><code>lib.strings.makeSearchPath</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>makeSearchPath <span class="s2">"bin"</span> <span class="p">[</span><span class="s2">"/root"</span> <span class="s2">"/usr"</span> <span class="s2">"/usr/local"</span><span class="p">]</span>
|
||
<span class="o">=></span> <span class="s2">"/root/bin:/usr/bin:/usr/local/bin"</span>
|
||
makeSearchPath <span class="s2">"bin"</span> <span class="p">[</span><span class="s2">""</span><span class="p">]</span>
|
||
<span class="o">=></span> <span class="s2">"/bin"</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L171">lib/strings.nix:171</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.makeSearchPathOutput"><code>lib.strings.makeSearchPathOutput</code></h2>
|
||
<p><strong>Type</strong>: <code>string -> string -> [package] -> string</code></p>
|
||
<p>Construct a Unix-style search path by appending the given
|
||
<code>subDir</code> to the specified <code>output</code> of each of the packages. If no
|
||
output by the given name is found, fallback to <code>.out</code> and then to
|
||
the default.</p>
|
||
<p><code>output</code></p>
|
||
<p>: Package output to use</p>
|
||
<p><code>subDir</code></p>
|
||
<p>: Directory name to append</p>
|
||
<p><code>pkgs</code></p>
|
||
<p>: List of packages</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringsmakesearchpathoutput-usage-example"><code>lib.strings.makeSearchPathOutput</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>makeSearchPathOutput <span class="s2">"dev"</span> <span class="s2">"bin"</span> <span class="p">[</span> pkgs<span class="o">.</span>openssl pkgs<span class="o">.</span>zlib <span class="p">]</span>
|
||
<span class="o">=></span> <span class="s2">"/nix/store/9rz8gxhzf8sw4kf2j2f1grr49w8zx5vj-openssl-1.0.1r-dev/bin:/nix/store/wwh7mhwh269sfjkm6k5665b5kgp7jrk2-zlib-1.2.8/bin"</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L189">lib/strings.nix:189</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.makeLibraryPath"><code>lib.strings.makeLibraryPath</code></h2>
|
||
<p>Construct a library search path (such as RPATH) containing the
|
||
libraries for a set of packages</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<div class="highlight"><pre><span></span><code># `lib.strings.makeLibraryPath` usage example
|
||
</code></pre></div>
|
||
<div class="highlight"><pre><span></span><code>makeLibraryPath <span class="p">[</span> <span class="s2">"/usr"</span> <span class="s2">"/usr/local"</span> <span class="p">]</span>
|
||
<span class="o">=></span> <span class="s2">"/usr/lib:/usr/local/lib"</span>
|
||
<span class="ss">pkgs</span> <span class="o">=</span> <span class="nb">import</span> <span class="l"><nixpkgs></span> <span class="p">{</span> <span class="p">}</span>
|
||
makeLibraryPath <span class="p">[</span> pkgs<span class="o">.</span>openssl pkgs<span class="o">.</span>zlib <span class="p">]</span>
|
||
<span class="o">=></span> <span class="s2">"/nix/store/9rz8gxhzf8sw4kf2j2f1grr49w8zx5vj-openssl-1.0.1r/lib:/nix/store/wwh7mhwh269sfjkm6k5665b5kgp7jrk2-zlib-1.2.8/lib"</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L207">lib/strings.nix:207</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.makeIncludePath"><code>lib.strings.makeIncludePath</code></h2>
|
||
<p>Construct an include search path (such as C_INCLUDE_PATH) containing the
|
||
header files for a set of packages or paths.</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<div class="highlight"><pre><span></span><code># `lib.strings.makeIncludePath` usage example
|
||
</code></pre></div>
|
||
<div class="highlight"><pre><span></span><code>makeIncludePath <span class="p">[</span> <span class="s2">"/usr"</span> <span class="s2">"/usr/local"</span> <span class="p">]</span>
|
||
<span class="o">=></span> <span class="s2">"/usr/include:/usr/local/include"</span>
|
||
<span class="ss">pkgs</span> <span class="o">=</span> <span class="nb">import</span> <span class="l"><nixpkgs></span> <span class="p">{</span> <span class="p">}</span>
|
||
makeIncludePath <span class="p">[</span> pkgs<span class="o">.</span>openssl pkgs<span class="o">.</span>zlib <span class="p">]</span>
|
||
<span class="o">=></span> <span class="s2">"/nix/store/9rz8gxhzf8sw4kf2j2f1grr49w8zx5vj-openssl-1.0.1r-dev/include:/nix/store/wwh7mhwh269sfjkm6k5665b5kgp7jrk2-zlib-1.2.8-dev/include"</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L219">lib/strings.nix:219</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.makeBinPath"><code>lib.strings.makeBinPath</code></h2>
|
||
<p>Construct a binary search path (such as $PATH) containing the
|
||
binaries for a set of packages.</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<div class="highlight"><pre><span></span><code># `lib.strings.makeBinPath` usage example
|
||
</code></pre></div>
|
||
<div class="highlight"><pre><span></span><code>makeBinPath <span class="p">[</span><span class="s2">"/root"</span> <span class="s2">"/usr"</span> <span class="s2">"/usr/local"</span><span class="p">]</span>
|
||
<span class="o">=></span> <span class="s2">"/root/bin:/usr/bin:/usr/local/bin"</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L228">lib/strings.nix:228</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.normalizePath"><code>lib.strings.normalizePath</code></h2>
|
||
<p><strong>Type</strong>: <code>normalizePath :: string -> string</code></p>
|
||
<p>Normalize path, removing extraneous /s</p>
|
||
<p><code>s</code></p>
|
||
<p>: Function argument</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringsnormalizepath-usage-example"><code>lib.strings.normalizePath</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>normalizePath <span class="s2">"/a//b///c/"</span>
|
||
<span class="o">=></span> <span class="s2">"/a/b/c/"</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L238">lib/strings.nix:238</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.optionalString"><code>lib.strings.optionalString</code></h2>
|
||
<p><strong>Type</strong>: <code>optionalString :: bool -> string -> string</code></p>
|
||
<p>Depending on the boolean `cond', return either the given string
|
||
or the empty string. Useful to concatenate against a bigger string.</p>
|
||
<p><code>cond</code></p>
|
||
<p>: Condition</p>
|
||
<p><code>string</code></p>
|
||
<p>: String to return if condition is true</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringsoptionalstring-usage-example"><code>lib.strings.optionalString</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>optionalString <span class="no">true</span> <span class="s2">"some-string"</span>
|
||
<span class="o">=></span> <span class="s2">"some-string"</span>
|
||
optionalString <span class="no">false</span> <span class="s2">"some-string"</span>
|
||
<span class="o">=></span> <span class="s2">""</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L264">lib/strings.nix:264</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.hasPrefix"><code>lib.strings.hasPrefix</code></h2>
|
||
<p><strong>Type</strong>: <code>hasPrefix :: string -> string -> bool</code></p>
|
||
<p>Determine whether a string has given prefix.</p>
|
||
<p><code>pref</code></p>
|
||
<p>: Prefix to check for</p>
|
||
<p><code>str</code></p>
|
||
<p>: Input string</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringshasprefix-usage-example"><code>lib.strings.hasPrefix</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>hasPrefix <span class="s2">"foo"</span> <span class="s2">"foobar"</span>
|
||
<span class="o">=></span> <span class="no">true</span>
|
||
hasPrefix <span class="s2">"foo"</span> <span class="s2">"barfoo"</span>
|
||
<span class="o">=></span> <span class="no">false</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L280">lib/strings.nix:280</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.hasSuffix"><code>lib.strings.hasSuffix</code></h2>
|
||
<p><strong>Type</strong>: <code>hasSuffix :: string -> string -> bool</code></p>
|
||
<p>Determine whether a string has given suffix.</p>
|
||
<p><code>suffix</code></p>
|
||
<p>: Suffix to check for</p>
|
||
<p><code>content</code></p>
|
||
<p>: Input string</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringshassuffix-usage-example"><code>lib.strings.hasSuffix</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>hasSuffix <span class="s2">"foo"</span> <span class="s2">"foobar"</span>
|
||
<span class="o">=></span> <span class="no">false</span>
|
||
hasSuffix <span class="s2">"foo"</span> <span class="s2">"barfoo"</span>
|
||
<span class="o">=></span> <span class="no">true</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L307">lib/strings.nix:307</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.hasInfix"><code>lib.strings.hasInfix</code></h2>
|
||
<p><strong>Type</strong>: <code>hasInfix :: string -> string -> bool</code></p>
|
||
<p>Determine whether a string contains the given infix</p>
|
||
<p><code>infix</code></p>
|
||
<p>: Function argument</p>
|
||
<p><code>content</code></p>
|
||
<p>: Function argument</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringshasinfix-usage-example"><code>lib.strings.hasInfix</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>hasInfix <span class="s2">"bc"</span> <span class="s2">"abcd"</span>
|
||
<span class="o">=></span> <span class="no">true</span>
|
||
hasInfix <span class="s2">"ab"</span> <span class="s2">"abcd"</span>
|
||
<span class="o">=></span> <span class="no">true</span>
|
||
hasInfix <span class="s2">"cd"</span> <span class="s2">"abcd"</span>
|
||
<span class="o">=></span> <span class="no">true</span>
|
||
hasInfix <span class="s2">"foo"</span> <span class="s2">"abcd"</span>
|
||
<span class="o">=></span> <span class="no">false</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L344">lib/strings.nix:344</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.stringToCharacters"><code>lib.strings.stringToCharacters</code></h2>
|
||
<p><strong>Type</strong>: <code>stringToCharacters :: string -> [string]</code></p>
|
||
<p>Convert a string to a list of characters (i.e. singleton strings).
|
||
This allows you to, e.g., map a function over each character. However,
|
||
note that this will likely be horribly inefficient; Nix is not a
|
||
general purpose programming language. Complex string manipulations
|
||
should, if appropriate, be done in a derivation.
|
||
Also note that Nix treats strings as a list of bytes and thus doesn't
|
||
handle unicode.</p>
|
||
<p><code>s</code></p>
|
||
<p>: Function argument</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringsstringtocharacters-usage-example"><code>lib.strings.stringToCharacters</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>stringToCharacters <span class="s2">""</span>
|
||
<span class="o">=></span> <span class="p">[</span> <span class="p">]</span>
|
||
stringToCharacters <span class="s2">"abc"</span>
|
||
<span class="o">=></span> <span class="p">[</span> <span class="s2">"a"</span> <span class="s2">"b"</span> <span class="s2">"c"</span> <span class="p">]</span>
|
||
stringToCharacters <span class="s2">"🦄"</span>
|
||
<span class="o">=></span> <span class="p">[</span> <span class="s2">"<EFBFBD>"</span> <span class="s2">"<EFBFBD>"</span> <span class="s2">"<EFBFBD>"</span> <span class="s2">"<EFBFBD>"</span> <span class="p">]</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L374">lib/strings.nix:374</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.stringAsChars"><code>lib.strings.stringAsChars</code></h2>
|
||
<p><strong>Type</strong>: <code>stringAsChars :: (string -> string) -> string -> string</code></p>
|
||
<p>Manipulate a string character by character and replace them by
|
||
strings before concatenating the results.</p>
|
||
<p><code>f</code></p>
|
||
<p>: Function to map over each individual character</p>
|
||
<p><code>s</code></p>
|
||
<p>: Input string</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringsstringaschars-usage-example"><code>lib.strings.stringAsChars</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>stringAsChars <span class="p">(</span>x<span class="p">:</span> <span class="k">if</span> <span class="ss">x</span> <span class="o">==</span> <span class="s2">"a"</span> <span class="k">then</span> <span class="s2">"i"</span> <span class="k">else</span> x<span class="p">)</span> <span class="s2">"nax"</span>
|
||
<span class="o">=></span> <span class="s2">"nix"</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L386">lib/strings.nix:386</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.charToInt"><code>lib.strings.charToInt</code></h2>
|
||
<p><strong>Type</strong>: <code>charToInt :: string -> int</code></p>
|
||
<p>Convert char to ascii value, must be in printable range</p>
|
||
<p><code>c</code></p>
|
||
<p>: Function argument</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringschartoint-usage-example"><code>lib.strings.charToInt</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>charToInt <span class="s2">"A"</span>
|
||
<span class="o">=></span> <span class="mi">65</span>
|
||
charToInt <span class="s2">"("</span>
|
||
<span class="o">=></span> <span class="mi">40</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L405">lib/strings.nix:405</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.escape"><code>lib.strings.escape</code></h2>
|
||
<p><strong>Type</strong>: <code>escape :: [string] -> string -> string</code></p>
|
||
<p>Escape occurrence of the elements of <code>list</code> in <code>string</code> by
|
||
prefixing it with a backslash.</p>
|
||
<p><code>list</code></p>
|
||
<p>: Function argument</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringsescape-usage-example"><code>lib.strings.escape</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>escape <span class="p">[</span><span class="s2">"("</span> <span class="s2">")"</span><span class="p">]</span> <span class="s2">"(foo)"</span>
|
||
<span class="o">=></span> <span class="s2">"</span><span class="se">\\</span><span class="s2">(foo</span><span class="se">\\</span><span class="s2">)"</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L416">lib/strings.nix:416</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.escapeC"><code>lib.strings.escapeC</code></h2>
|
||
<p><strong>Type</strong>: <code>escapeC = [string] -> string -> string</code></p>
|
||
<p>Escape occurrence of the element of <code>list</code> in <code>string</code> by
|
||
converting to its ASCII value and prefixing it with \x.
|
||
Only works for printable ascii characters.</p>
|
||
<p><code>list</code></p>
|
||
<p>: Function argument</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringsescapec-usage-example"><code>lib.strings.escapeC</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>escapeC <span class="p">[</span><span class="s2">" "</span><span class="p">]</span> <span class="s2">"foo bar"</span>
|
||
<span class="o">=></span> <span class="s2">"foo</span><span class="se">\\</span><span class="s2">x20bar"</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L429">lib/strings.nix:429</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.escapeURL"><code>lib.strings.escapeURL</code></h2>
|
||
<p><strong>Type</strong>: <code>escapeURL :: string -> string</code></p>
|
||
<p>Escape the string so it can be safely placed inside a URL
|
||
query.</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<div class="highlight"><pre><span></span><code># `lib.strings.escapeURL` usage example
|
||
</code></pre></div>
|
||
<div class="highlight"><pre><span></span><code>escapeURL <span class="s2">"foo/bar baz"</span>
|
||
<span class="o">=></span> <span class="s2">"foo%2Fbar%20baz"</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L440">lib/strings.nix:440</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.escapeShellArg"><code>lib.strings.escapeShellArg</code></h2>
|
||
<p><strong>Type</strong>: <code>escapeShellArg :: string -> string</code></p>
|
||
<p>Quote string to be used safely within the Bourne shell.</p>
|
||
<p><code>arg</code></p>
|
||
<p>: Function argument</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringsescapeshellarg-usage-example"><code>lib.strings.escapeShellArg</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>escapeShellArg <span class="s2">"esc'ape</span><span class="se">\n</span><span class="s2">me"</span>
|
||
<span class="o">=></span> <span class="s2">"'esc'</span><span class="se">\\</span><span class="s2">''ape</span><span class="se">\n</span><span class="s2">me'"</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L454">lib/strings.nix:454</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.escapeShellArgs"><code>lib.strings.escapeShellArgs</code></h2>
|
||
<p><strong>Type</strong>: <code>escapeShellArgs :: [string] -> string</code></p>
|
||
<p>Quote all arguments to be safely passed to the Bourne shell.</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<div class="highlight"><pre><span></span><code># `lib.strings.escapeShellArgs` usage example
|
||
</code></pre></div>
|
||
<div class="highlight"><pre><span></span><code>escapeShellArgs <span class="p">[</span><span class="s2">"one"</span> <span class="s2">"two three"</span> <span class="s2">"four'five"</span><span class="p">]</span>
|
||
<span class="o">=></span> <span class="s2">"'one' 'two three' 'four'</span><span class="se">\\</span><span class="s2">''five'"</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L464">lib/strings.nix:464</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.isValidPosixName"><code>lib.strings.isValidPosixName</code></h2>
|
||
<p><strong>Type</strong>: <code>string -> bool</code></p>
|
||
<p>Test whether the given name is a valid POSIX shell variable name.</p>
|
||
<p><code>name</code></p>
|
||
<p>: Function argument</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringsisvalidposixname-usage-example"><code>lib.strings.isValidPosixName</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>isValidPosixName <span class="s2">"foo_bar000"</span>
|
||
<span class="o">=></span> <span class="no">true</span>
|
||
isValidPosixName <span class="s2">"0-bad.jpg"</span>
|
||
<span class="o">=></span> <span class="no">false</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L476">lib/strings.nix:476</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.toShellVar"><code>lib.strings.toShellVar</code></h2>
|
||
<p><strong>Type</strong>: <code>string -> (string | listOf string | attrsOf string) -> string</code></p>
|
||
<p>Translate a Nix value into a shell variable declaration, with proper escaping.</p>
|
||
<p>The value can be a string (mapped to a regular variable), a list of strings
|
||
(mapped to a Bash-style array) or an attribute set of strings (mapped to a
|
||
Bash-style associative array). Note that "string" includes string-coercible
|
||
values like paths or derivations.</p>
|
||
<p>Strings are translated into POSIX sh-compatible code; lists and attribute sets
|
||
assume a shell that understands Bash syntax (e.g. Bash or ZSH).</p>
|
||
<p><code>name</code></p>
|
||
<p>: Function argument</p>
|
||
<p><code>value</code></p>
|
||
<p>: Function argument</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringstoshellvar-usage-example"><code>lib.strings.toShellVar</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code><span class="s s-Multiline">''</span>
|
||
<span class="s s-Multiline"> </span><span class="si">${</span>toShellVar <span class="s2">"foo"</span> <span class="s2">"some string"</span><span class="si">}</span>
|
||
<span class="s s-Multiline"> [[ "$foo" == "some string" ]]</span>
|
||
<span class="s s-Multiline">''</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L496">lib/strings.nix:496</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.toShellVars"><code>lib.strings.toShellVars</code></h2>
|
||
<p><strong>Type</strong>: <code>attrsOf (string | listOf string | attrsOf string) -> string</code></p>
|
||
<p>Translate an attribute set into corresponding shell variable declarations
|
||
using <code>toShellVar</code>.</p>
|
||
<p><code>vars</code></p>
|
||
<p>: Function argument</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringstoshellvars-usage-example"><code>lib.strings.toShellVars</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code><span class="k">let</span>
|
||
<span class="ss">foo</span> <span class="o">=</span> <span class="s2">"value"</span><span class="p">;</span>
|
||
<span class="ss">bar</span> <span class="o">=</span> foo<span class="p">;</span>
|
||
<span class="k">in</span> <span class="s s-Multiline">''</span>
|
||
<span class="s s-Multiline"> </span><span class="si">${</span>toShellVars <span class="p">{</span> <span class="k">inherit</span> foo bar<span class="p">;</span> <span class="p">}</span><span class="si">}</span>
|
||
<span class="s s-Multiline"> [[ "$foo" == "$bar" ]]</span>
|
||
<span class="s s-Multiline">''</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L524">lib/strings.nix:524</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.escapeNixString"><code>lib.strings.escapeNixString</code></h2>
|
||
<p><strong>Type</strong>: <code>string -> string</code></p>
|
||
<p>Turn a string into a Nix expression representing that string</p>
|
||
<p><code>s</code></p>
|
||
<p>: Function argument</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringsescapenixstring-usage-example"><code>lib.strings.escapeNixString</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>escapeNixString <span class="s2">"hello</span><span class="se">\$</span><span class="s2">{}</span><span class="se">\n</span><span class="s2">"</span>
|
||
<span class="o">=></span> <span class="s2">"</span><span class="se">\"</span><span class="s2">hello</span><span class="se">\\\$</span><span class="s2">{}</span><span class="se">\\</span><span class="s2">n</span><span class="se">\"</span><span class="s2">"</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L534">lib/strings.nix:534</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.escapeRegex"><code>lib.strings.escapeRegex</code></h2>
|
||
<p><strong>Type</strong>: <code>string -> string</code></p>
|
||
<p>Turn a string into an exact regular expression</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<div class="highlight"><pre><span></span><code># `lib.strings.escapeRegex` usage example
|
||
</code></pre></div>
|
||
<div class="highlight"><pre><span></span><code>escapeRegex <span class="s2">"[^a-z]*"</span>
|
||
<span class="o">=></span> <span class="s2">"</span><span class="se">\\</span><span class="s2">[</span><span class="se">\\</span><span class="s2">^a-z]</span><span class="se">\\</span><span class="s2">*"</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L544">lib/strings.nix:544</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.escapeNixIdentifier"><code>lib.strings.escapeNixIdentifier</code></h2>
|
||
<p><strong>Type</strong>: <code>string -> string</code></p>
|
||
<p>Quotes a string if it can't be used as an identifier directly.</p>
|
||
<p><code>s</code></p>
|
||
<p>: Function argument</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringsescapenixidentifier-usage-example"><code>lib.strings.escapeNixIdentifier</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>escapeNixIdentifier <span class="s2">"hello"</span>
|
||
<span class="o">=></span> <span class="s2">"hello"</span>
|
||
escapeNixIdentifier <span class="s2">"0abc"</span>
|
||
<span class="o">=></span> <span class="s2">"</span><span class="se">\"</span><span class="s2">0abc</span><span class="se">\"</span><span class="s2">"</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L556">lib/strings.nix:556</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.escapeXML"><code>lib.strings.escapeXML</code></h2>
|
||
<p><strong>Type</strong>: <code>string -> string</code></p>
|
||
<p>Escapes a string such that it is safe to include verbatim in an XML
|
||
document.</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<div class="highlight"><pre><span></span><code># `lib.strings.escapeXML` usage example
|
||
</code></pre></div>
|
||
<div class="highlight"><pre><span></span><code>escapeXML <span class="s s-Multiline">''"test" 'test' < & >''</span>
|
||
<span class="o">=></span> <span class="s2">"&quot;test&quot; &apos;test&apos; &lt; &amp; &gt;"</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L570">lib/strings.nix:570</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.toLower"><code>lib.strings.toLower</code></h2>
|
||
<p><strong>Type</strong>: <code>toLower :: string -> string</code></p>
|
||
<p>Converts an ASCII string to lower-case.</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<div class="highlight"><pre><span></span><code># `lib.strings.toLower` usage example
|
||
</code></pre></div>
|
||
<div class="highlight"><pre><span></span><code>toLower <span class="s2">"HOME"</span>
|
||
<span class="o">=></span> <span class="s2">"home"</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L589">lib/strings.nix:589</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.toUpper"><code>lib.strings.toUpper</code></h2>
|
||
<p><strong>Type</strong>: <code>toUpper :: string -> string</code></p>
|
||
<p>Converts an ASCII string to upper-case.</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<div class="highlight"><pre><span></span><code># `lib.strings.toUpper` usage example
|
||
</code></pre></div>
|
||
<div class="highlight"><pre><span></span><code>toUpper <span class="s2">"home"</span>
|
||
<span class="o">=></span> <span class="s2">"HOME"</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L599">lib/strings.nix:599</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.addContextFrom"><code>lib.strings.addContextFrom</code></h2>
|
||
<p>Appends string context from another string. This is an implementation
|
||
detail of Nix and should be used carefully.</p>
|
||
<p>Strings in Nix carry an invisible <code>context</code> which is a list of strings
|
||
representing store paths. If the string is later used in a derivation
|
||
attribute, the derivation will properly populate the inputDrvs and
|
||
inputSrcs.</p>
|
||
<p><code>a</code></p>
|
||
<p>: Function argument</p>
|
||
<p><code>b</code></p>
|
||
<p>: Function argument</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringsaddcontextfrom-usage-example"><code>lib.strings.addContextFrom</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code><span class="ss">pkgs</span> <span class="o">=</span> <span class="nb">import</span> <span class="l"><nixpkgs></span> <span class="p">{</span> <span class="p">};</span>
|
||
addContextFrom pkgs<span class="o">.</span>coreutils <span class="s2">"bar"</span>
|
||
<span class="o">=></span> <span class="s2">"bar"</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L614">lib/strings.nix:614</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.splitString"><code>lib.strings.splitString</code></h2>
|
||
<p>Cut a string with a separator and produces a list of strings which
|
||
were separated by this separator.</p>
|
||
<p><code>sep</code></p>
|
||
<p>: Function argument</p>
|
||
<p><code>s</code></p>
|
||
<p>: Function argument</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringssplitstring-usage-example"><code>lib.strings.splitString</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>splitString <span class="s2">"."</span> <span class="s2">"foo.bar.baz"</span>
|
||
<span class="o">=></span> <span class="p">[</span> <span class="s2">"foo"</span> <span class="s2">"bar"</span> <span class="s2">"baz"</span> <span class="p">]</span>
|
||
splitString <span class="s2">"/"</span> <span class="s2">"/usr/local/bin"</span>
|
||
<span class="o">=></span> <span class="p">[</span> <span class="s2">""</span> <span class="s2">"usr"</span> <span class="s2">"local"</span> <span class="s2">"bin"</span> <span class="p">]</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L625">lib/strings.nix:625</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.removePrefix"><code>lib.strings.removePrefix</code></h2>
|
||
<p><strong>Type</strong>: <code>string -> string -> string</code></p>
|
||
<p>Return a string without the specified prefix, if the prefix matches.</p>
|
||
<p><code>prefix</code></p>
|
||
<p>: Prefix to remove if it matches</p>
|
||
<p><code>str</code></p>
|
||
<p>: Input string</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringsremoveprefix-usage-example"><code>lib.strings.removePrefix</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>removePrefix <span class="s2">"foo."</span> <span class="s2">"foo.bar.baz"</span>
|
||
<span class="o">=></span> <span class="s2">"bar.baz"</span>
|
||
removePrefix <span class="s2">"xxx"</span> <span class="s2">"foo.bar.baz"</span>
|
||
<span class="o">=></span> <span class="s2">"foo.bar.baz"</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L641">lib/strings.nix:641</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.removeSuffix"><code>lib.strings.removeSuffix</code></h2>
|
||
<p><strong>Type</strong>: <code>string -> string -> string</code></p>
|
||
<p>Return a string without the specified suffix, if the suffix matches.</p>
|
||
<p><code>suffix</code></p>
|
||
<p>: Suffix to remove if it matches</p>
|
||
<p><code>str</code></p>
|
||
<p>: Input string</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringsremovesuffix-usage-example"><code>lib.strings.removeSuffix</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>removeSuffix <span class="s2">"front"</span> <span class="s2">"homefront"</span>
|
||
<span class="o">=></span> <span class="s2">"home"</span>
|
||
removeSuffix <span class="s2">"xxx"</span> <span class="s2">"homefront"</span>
|
||
<span class="o">=></span> <span class="s2">"homefront"</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L674">lib/strings.nix:674</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.versionOlder"><code>lib.strings.versionOlder</code></h2>
|
||
<p>Return true if string v1 denotes a version older than v2.</p>
|
||
<p><code>v1</code></p>
|
||
<p>: Function argument</p>
|
||
<p><code>v2</code></p>
|
||
<p>: Function argument</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringsversionolder-usage-example"><code>lib.strings.versionOlder</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>versionOlder <span class="s2">"1.1"</span> <span class="s2">"1.2"</span>
|
||
<span class="o">=></span> <span class="no">true</span>
|
||
versionOlder <span class="s2">"1.1"</span> <span class="s2">"1.1"</span>
|
||
<span class="o">=></span> <span class="no">false</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L705">lib/strings.nix:705</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.versionAtLeast"><code>lib.strings.versionAtLeast</code></h2>
|
||
<p>Return true if string v1 denotes a version equal to or newer than v2.</p>
|
||
<p><code>v1</code></p>
|
||
<p>: Function argument</p>
|
||
<p><code>v2</code></p>
|
||
<p>: Function argument</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringsversionatleast-usage-example"><code>lib.strings.versionAtLeast</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>versionAtLeast <span class="s2">"1.1"</span> <span class="s2">"1.0"</span>
|
||
<span class="o">=></span> <span class="no">true</span>
|
||
versionAtLeast <span class="s2">"1.1"</span> <span class="s2">"1.1"</span>
|
||
<span class="o">=></span> <span class="no">true</span>
|
||
versionAtLeast <span class="s2">"1.1"</span> <span class="s2">"1.2"</span>
|
||
<span class="o">=></span> <span class="no">false</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L717">lib/strings.nix:717</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.getName"><code>lib.strings.getName</code></h2>
|
||
<p>This function takes an argument that's either a derivation or a
|
||
derivation's "name" attribute and extracts the name part from that
|
||
argument.</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<div class="highlight"><pre><span></span><code># `lib.strings.getName` usage example
|
||
</code></pre></div>
|
||
<div class="highlight"><pre><span></span><code>getName <span class="s2">"youtube-dl-2016.01.01"</span>
|
||
<span class="o">=></span> <span class="s2">"youtube-dl"</span>
|
||
getName pkgs<span class="o">.</span><span class="ss">youtube-dl</span>
|
||
<span class="o">=></span> <span class="s2">"youtube-dl"</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L729">lib/strings.nix:729</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.getVersion"><code>lib.strings.getVersion</code></h2>
|
||
<p>This function takes an argument that's either a derivation or a
|
||
derivation's "name" attribute and extracts the version part from that
|
||
argument.</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<div class="highlight"><pre><span></span><code># `lib.strings.getVersion` usage example
|
||
</code></pre></div>
|
||
<div class="highlight"><pre><span></span><code>getVersion <span class="s2">"youtube-dl-2016.01.01"</span>
|
||
<span class="o">=></span> <span class="s2">"2016.01.01"</span>
|
||
getVersion pkgs<span class="o">.</span><span class="ss">youtube-dl</span>
|
||
<span class="o">=></span> <span class="s2">"2016.01.01"</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L746">lib/strings.nix:746</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.nameFromURL"><code>lib.strings.nameFromURL</code></h2>
|
||
<p>Extract name with version from URL. Ask for separator which is
|
||
supposed to start extension.</p>
|
||
<p><code>url</code></p>
|
||
<p>: Function argument</p>
|
||
<p><code>sep</code></p>
|
||
<p>: Function argument</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringsnamefromurl-usage-example"><code>lib.strings.nameFromURL</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>nameFromURL <span class="s2">"https://nixos.org/releases/nix/nix-1.7/nix-1.7-x86_64-linux.tar.bz2"</span> <span class="s2">"-"</span>
|
||
<span class="o">=></span> <span class="s2">"nix"</span>
|
||
nameFromURL <span class="s2">"https://nixos.org/releases/nix/nix-1.7/nix-1.7-x86_64-linux.tar.bz2"</span> <span class="s2">"_"</span>
|
||
<span class="o">=></span> <span class="s2">"nix-1.7-x86"</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L762">lib/strings.nix:762</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.cmakeOptionType"><code>lib.strings.cmakeOptionType</code></h2>
|
||
<p><strong>Type</strong>:
|
||
<div class="highlight"><pre><span></span><code>cmakeOptionType :: string -> string -> string -> string
|
||
|
||
@param feature The feature to be set
|
||
@param type The type of the feature to be set, as described in
|
||
https://cmake.org/cmake/help/latest/command/set.html
|
||
the possible values (case insensitive) are:
|
||
BOOL FILEPATH PATH STRING INTERNAL
|
||
@param value The desired value
|
||
</code></pre></div></p>
|
||
<p>Create a "-D<feature>:<type>=<value>" string that can be passed to typical
|
||
CMake invocations.</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<div class="highlight"><pre><span></span><code># `lib.strings.cmakeOptionType` usage example
|
||
</code></pre></div>
|
||
<div class="highlight"><pre><span></span><code>cmakeOptionType <span class="s2">"string"</span> <span class="s2">"ENGINE"</span> <span class="s2">"sdl2"</span>
|
||
<span class="o">=></span> <span class="s2">"-DENGINE:STRING=sdl2"</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L785">lib/strings.nix:785</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.cmakeBool"><code>lib.strings.cmakeBool</code></h2>
|
||
<p><strong>Type</strong>:
|
||
<div class="highlight"><pre><span></span><code>cmakeBool :: string -> bool -> string
|
||
|
||
@param condition The condition to be made true or false
|
||
@param flag The controlling flag of the condition
|
||
</code></pre></div></p>
|
||
<p>Create a -D<condition>={TRUE,FALSE} string that can be passed to typical
|
||
CMake invocations.</p>
|
||
<p><code>condition</code></p>
|
||
<p>: Function argument</p>
|
||
<p><code>flag</code></p>
|
||
<p>: Function argument</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringscmakebool-usage-example"><code>lib.strings.cmakeBool</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>cmakeBool <span class="s2">"ENABLE_STATIC_LIBS"</span> <span class="no">false</span>
|
||
<span class="o">=></span> <span class="s2">"-DENABLESTATIC_LIBS:BOOL=FALSE"</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L805">lib/strings.nix:805</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.cmakeFeature"><code>lib.strings.cmakeFeature</code></h2>
|
||
<p><strong>Type</strong>:
|
||
<div class="highlight"><pre><span></span><code>cmakeFeature :: string -> string -> string
|
||
|
||
@param condition The condition to be made true or false
|
||
@param flag The controlling flag of the condition
|
||
</code></pre></div></p>
|
||
<p>Create a -D<feature>:STRING=<value> string that can be passed to typical
|
||
CMake invocations.
|
||
This is the most typical usage, so it deserves a special case.</p>
|
||
<p><code>feature</code></p>
|
||
<p>: Function argument</p>
|
||
<p><code>value</code></p>
|
||
<p>: Function argument</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringscmakefeature-usage-example"><code>lib.strings.cmakeFeature</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>cmakeFeature <span class="s2">"MODULES"</span> <span class="s2">"badblock"</span>
|
||
<span class="o">=></span> <span class="s2">"-DMODULES:STRING=badblock"</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L823">lib/strings.nix:823</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.mesonOption"><code>lib.strings.mesonOption</code></h2>
|
||
<p><strong>Type</strong>:
|
||
<div class="highlight"><pre><span></span><code>mesonOption :: string -> string -> string
|
||
|
||
@param feature The feature to be set
|
||
@param value The desired value
|
||
</code></pre></div></p>
|
||
<p>Create a -D<feature>=<value> string that can be passed to typical Meson
|
||
invocations.</p>
|
||
<p><code>feature</code></p>
|
||
<p>: Function argument</p>
|
||
<p><code>value</code></p>
|
||
<p>: Function argument</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringsmesonoption-usage-example"><code>lib.strings.mesonOption</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>mesonOption <span class="s2">"engine"</span> <span class="s2">"opengl"</span>
|
||
<span class="o">=></span> <span class="s2">"-Dengine=opengl"</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L840">lib/strings.nix:840</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.mesonBool"><code>lib.strings.mesonBool</code></h2>
|
||
<p><strong>Type</strong>:
|
||
<div class="highlight"><pre><span></span><code>mesonBool :: string -> bool -> string
|
||
|
||
@param condition The condition to be made true or false
|
||
@param flag The controlling flag of the condition
|
||
</code></pre></div></p>
|
||
<p>Create a -D<condition>={true,false} string that can be passed to typical
|
||
Meson invocations.</p>
|
||
<p><code>condition</code></p>
|
||
<p>: Function argument</p>
|
||
<p><code>flag</code></p>
|
||
<p>: Function argument</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringsmesonbool-usage-example"><code>lib.strings.mesonBool</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>mesonBool <span class="s2">"hardened"</span> <span class="no">true</span>
|
||
<span class="o">=></span> <span class="s2">"-Dhardened=true"</span>
|
||
mesonBool <span class="s2">"static"</span> <span class="no">false</span>
|
||
<span class="o">=></span> <span class="s2">"-Dstatic=false"</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L859">lib/strings.nix:859</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.mesonEnable"><code>lib.strings.mesonEnable</code></h2>
|
||
<p><strong>Type</strong>:
|
||
<div class="highlight"><pre><span></span><code>mesonEnable :: string -> bool -> string
|
||
|
||
@param feature The feature to be enabled or disabled
|
||
@param flag The controlling flag
|
||
</code></pre></div></p>
|
||
<p>Create a -D<feature>={enabled,disabled} string that can be passed to
|
||
typical Meson invocations.</p>
|
||
<p><code>feature</code></p>
|
||
<p>: Function argument</p>
|
||
<p><code>flag</code></p>
|
||
<p>: Function argument</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringsmesonenable-usage-example"><code>lib.strings.mesonEnable</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>mesonEnable <span class="s2">"docs"</span> <span class="no">true</span>
|
||
<span class="o">=></span> <span class="s2">"-Ddocs=enabled"</span>
|
||
mesonEnable <span class="s2">"savage"</span> <span class="no">false</span>
|
||
<span class="o">=></span> <span class="s2">"-Dsavage=disabled"</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L878">lib/strings.nix:878</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.enableFeature"><code>lib.strings.enableFeature</code></h2>
|
||
<p>Create an --{enable,disable}-<feature> string that can be passed to
|
||
standard GNU Autoconf scripts.</p>
|
||
<p><code>flag</code></p>
|
||
<p>: Function argument</p>
|
||
<p><code>feature</code></p>
|
||
<p>: Function argument</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringsenablefeature-usage-example"><code>lib.strings.enableFeature</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>enableFeature <span class="no">true</span> <span class="s2">"shared"</span>
|
||
<span class="o">=></span> <span class="s2">"--enable-shared"</span>
|
||
enableFeature <span class="no">false</span> <span class="s2">"shared"</span>
|
||
<span class="o">=></span> <span class="s2">"--disable-shared"</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L892">lib/strings.nix:892</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.enableFeatureAs"><code>lib.strings.enableFeatureAs</code></h2>
|
||
<p>Create an --{enable-<feature>=<value>,disable-<feature>} string that can be passed to
|
||
standard GNU Autoconf scripts.</p>
|
||
<p><code>flag</code></p>
|
||
<p>: Function argument</p>
|
||
<p><code>feature</code></p>
|
||
<p>: Function argument</p>
|
||
<p><code>value</code></p>
|
||
<p>: Function argument</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringsenablefeatureas-usage-example"><code>lib.strings.enableFeatureAs</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>enableFeatureAs <span class="no">true</span> <span class="s2">"shared"</span> <span class="s2">"foo"</span>
|
||
<span class="o">=></span> <span class="s2">"--enable-shared=foo"</span>
|
||
enableFeatureAs <span class="no">false</span> <span class="s2">"shared"</span> <span class="p">(</span><span class="nb">throw</span> <span class="s2">"ignored"</span><span class="p">)</span>
|
||
<span class="o">=></span> <span class="s2">"--disable-shared"</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L906">lib/strings.nix:906</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.withFeature"><code>lib.strings.withFeature</code></h2>
|
||
<p>Create an --{with,without}-<feature> string that can be passed to
|
||
standard GNU Autoconf scripts.</p>
|
||
<p><code>flag</code></p>
|
||
<p>: Function argument</p>
|
||
<p><code>feature</code></p>
|
||
<p>: Function argument</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringswithfeature-usage-example"><code>lib.strings.withFeature</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>withFeature <span class="no">true</span> <span class="s2">"shared"</span>
|
||
<span class="o">=></span> <span class="s2">"--with-shared"</span>
|
||
withFeature <span class="no">false</span> <span class="s2">"shared"</span>
|
||
<span class="o">=></span> <span class="s2">"--without-shared"</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L918">lib/strings.nix:918</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.withFeatureAs"><code>lib.strings.withFeatureAs</code></h2>
|
||
<p>Create an --{with-<feature>=<value>,without-<feature>} string that can be passed to
|
||
standard GNU Autoconf scripts.</p>
|
||
<p><code>flag</code></p>
|
||
<p>: Function argument</p>
|
||
<p><code>feature</code></p>
|
||
<p>: Function argument</p>
|
||
<p><code>value</code></p>
|
||
<p>: Function argument</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringswithfeatureas-usage-example"><code>lib.strings.withFeatureAs</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>withFeatureAs <span class="no">true</span> <span class="s2">"shared"</span> <span class="s2">"foo"</span>
|
||
<span class="o">=></span> <span class="s2">"--with-shared=foo"</span>
|
||
withFeatureAs <span class="no">false</span> <span class="s2">"shared"</span> <span class="p">(</span><span class="nb">throw</span> <span class="s2">"ignored"</span><span class="p">)</span>
|
||
<span class="o">=></span> <span class="s2">"--without-shared"</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L931">lib/strings.nix:931</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.fixedWidthString"><code>lib.strings.fixedWidthString</code></h2>
|
||
<p><strong>Type</strong>: <code>fixedWidthString :: int -> string -> string -> string</code></p>
|
||
<p>Create a fixed width string with additional prefix to match
|
||
required width.</p>
|
||
<p>This function will fail if the input string is longer than the
|
||
requested length.</p>
|
||
<p><code>width</code></p>
|
||
<p>: Function argument</p>
|
||
<p><code>filler</code></p>
|
||
<p>: Function argument</p>
|
||
<p><code>str</code></p>
|
||
<p>: Function argument</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringsfixedwidthstring-usage-example"><code>lib.strings.fixedWidthString</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>fixedWidthString <span class="mi">5</span> <span class="s2">"0"</span> <span class="p">(</span><span class="nb">toString</span> <span class="mi">15</span><span class="p">)</span>
|
||
<span class="o">=></span> <span class="s2">"00015"</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L946">lib/strings.nix:946</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.fixedWidthNumber"><code>lib.strings.fixedWidthNumber</code></h2>
|
||
<p>Format a number adding leading zeroes up to fixed width.</p>
|
||
<p><code>width</code></p>
|
||
<p>: Function argument</p>
|
||
<p><code>n</code></p>
|
||
<p>: Function argument</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringsfixedwidthnumber-usage-example"><code>lib.strings.fixedWidthNumber</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>fixedWidthNumber <span class="mi">5</span> <span class="mi">15</span>
|
||
<span class="o">=></span> <span class="s2">"00015"</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L963">lib/strings.nix:963</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.floatToString"><code>lib.strings.floatToString</code></h2>
|
||
<p>Convert a float to a string, but emit a warning when precision is lost
|
||
during the conversion</p>
|
||
<p><code>float</code></p>
|
||
<p>: Function argument</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringsfloattostring-usage-example"><code>lib.strings.floatToString</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>floatToString <span class="mf">0.000001</span>
|
||
<span class="o">=></span> <span class="s2">"0.000001"</span>
|
||
floatToString <span class="mf">0.0000001</span>
|
||
<span class="o">=></span> trace<span class="p">:</span> warning<span class="p">:</span> Imprecise conversion from float to string <span class="mf">0.000000</span>
|
||
<span class="s2">"0.000000"</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L975">lib/strings.nix:975</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.isCoercibleToString"><code>lib.strings.isCoercibleToString</code></h2>
|
||
<p>Soft-deprecated function. While the original implementation is available as
|
||
isConvertibleWithToString, consider using isStringLike instead, if suitable.</p>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L983">lib/strings.nix:983</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.isConvertibleWithToString"><code>lib.strings.isConvertibleWithToString</code></h2>
|
||
<p>Check whether a list or other value can be passed to toString.</p>
|
||
<p>Many types of value are coercible to string this way, including int, float,
|
||
null, bool, list of similarly coercible values.</p>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L992">lib/strings.nix:992</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.isStringLike"><code>lib.strings.isStringLike</code></h2>
|
||
<p>Check whether a value can be coerced to a string.
|
||
The value must be a string, path, or attribute set.</p>
|
||
<p>String-like values can be used without explicit conversion in
|
||
string interpolations and in most functions that expect a string.</p>
|
||
<p><code>x</code></p>
|
||
<p>: Function argument</p>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L1005">lib/strings.nix:1005</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.isStorePath"><code>lib.strings.isStorePath</code></h2>
|
||
<p>Check whether a value is a store path.</p>
|
||
<p><code>x</code></p>
|
||
<p>: Function argument</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringsisstorepath-usage-example"><code>lib.strings.isStorePath</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>isStorePath <span class="s2">"/nix/store/d945ibfx9x185xf04b890y4f9g3cbb63-python-2.7.11/bin/python"</span>
|
||
<span class="o">=></span> <span class="no">false</span>
|
||
isStorePath <span class="s2">"/nix/store/d945ibfx9x185xf04b890y4f9g3cbb63-python-2.7.11"</span>
|
||
<span class="o">=></span> <span class="no">true</span>
|
||
isStorePath pkgs<span class="o">.</span><span class="ss">python</span>
|
||
<span class="o">=></span> <span class="no">true</span>
|
||
isStorePath <span class="p">[]</span> <span class="o">||</span> isStorePath <span class="mi">42</span> <span class="o">||</span> isStorePath <span class="p">{}</span> <span class="o">||</span> <span class="err">…</span>
|
||
<span class="o">=></span> <span class="no">false</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L1023">lib/strings.nix:1023</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.toInt"><code>lib.strings.toInt</code></h2>
|
||
<p><strong>Type</strong>: <code>string -> int</code></p>
|
||
<p>Parse a string as an int. Does not support parsing of integers with preceding zero due to
|
||
ambiguity between zero-padded and octal numbers. See toIntBase10.</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<div class="highlight"><pre><span></span><code># `lib.strings.toInt` usage example
|
||
</code></pre></div>
|
||
<div class="highlight"><pre><span></span><code>toInt <span class="s2">"1337"</span>
|
||
<span class="o">=></span> <span class="mi">1337</span>
|
||
|
||
toInt <span class="s2">"-4"</span>
|
||
<span class="o">=></span> <span class="mi">-4</span>
|
||
|
||
toInt <span class="s2">" 123 "</span>
|
||
<span class="o">=></span> <span class="mi">123</span>
|
||
|
||
toInt <span class="s2">"00024"</span>
|
||
<span class="o">=></span> error<span class="p">:</span> Ambiguity <span class="k">in</span> interpretation of <span class="mi">00024</span> between octal <span class="ow">and</span> zero padded integer<span class="o">.</span>
|
||
|
||
toInt <span class="s2">"3.14"</span>
|
||
<span class="o">=></span> error<span class="p">:</span> floating point JSON numbers are not supported
|
||
</code></pre></div>
|
||
</div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L1053">lib/strings.nix:1053</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.toIntBase10"><code>lib.strings.toIntBase10</code></h2>
|
||
<p><strong>Type</strong>: <code>string -> int</code></p>
|
||
<p>Parse a string as a base 10 int. This supports parsing of zero-padded integers.</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<div class="highlight"><pre><span></span><code># `lib.strings.toIntBase10` usage example
|
||
</code></pre></div>
|
||
<div class="highlight"><pre><span></span><code>toIntBase10 <span class="s2">"1337"</span>
|
||
<span class="o">=></span> <span class="mi">1337</span>
|
||
|
||
toIntBase10 <span class="s2">"-4"</span>
|
||
<span class="o">=></span> <span class="mi">-4</span>
|
||
|
||
toIntBase10 <span class="s2">" 123 "</span>
|
||
<span class="o">=></span> <span class="mi">123</span>
|
||
|
||
toIntBase10 <span class="s2">"00024"</span>
|
||
<span class="o">=></span> <span class="mi">24</span>
|
||
|
||
toIntBase10 <span class="s2">"3.14"</span>
|
||
<span class="o">=></span> error<span class="p">:</span> floating point JSON numbers are not supported
|
||
</code></pre></div>
|
||
</div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L1106">lib/strings.nix:1106</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.readPathsFromFile"><code>lib.strings.readPathsFromFile</code></h2>
|
||
<p>Read a list of paths from <code>file</code>, relative to the <code>rootPath</code>.
|
||
Lines beginning with <code>#</code> are treated as comments and ignored.
|
||
Whitespace is significant.</p>
|
||
<p>NOTE: This function is not performant and should be avoided.</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<div class="highlight"><pre><span></span><code># `lib.strings.readPathsFromFile` usage example
|
||
</code></pre></div>
|
||
<div class="highlight"><pre><span></span><code>readPathsFromFile <span class="l">/prefix</span>
|
||
<span class="l">./pkgs/development/libraries/qt-5/5.4/qtbase/series</span>
|
||
<span class="o">=></span> <span class="p">[</span> <span class="s2">"/prefix/dlopen-resolv.patch"</span> <span class="s2">"/prefix/tzdir.patch"</span>
|
||
<span class="s2">"/prefix/dlopen-libXcursor.patch"</span> <span class="s2">"/prefix/dlopen-openssl.patch"</span>
|
||
<span class="s2">"/prefix/dlopen-dbus.patch"</span> <span class="s2">"/prefix/xdg-config-dirs.patch"</span>
|
||
<span class="s2">"/prefix/nix-profiles-library-paths.patch"</span>
|
||
<span class="s2">"/prefix/compose-search-path.patch"</span> <span class="p">]</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L1154">lib/strings.nix:1154</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.fileContents"><code>lib.strings.fileContents</code></h2>
|
||
<p><strong>Type</strong>: <code>fileContents :: path -> string</code></p>
|
||
<p>Read the contents of a file removing the trailing \n</p>
|
||
<p><code>file</code></p>
|
||
<p>: Function argument</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringsfilecontents-usage-example"><code>lib.strings.fileContents</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code><span class="err">$</span> echo <span class="s2">"1.0"</span> <span class="o">></span> <span class="l">./version</span>
|
||
|
||
fileContents <span class="l">./version</span>
|
||
<span class="o">=></span> <span class="s2">"1.0"</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L1174">lib/strings.nix:1174</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.sanitizeDerivationName"><code>lib.strings.sanitizeDerivationName</code></h2>
|
||
<p><strong>Type</strong>: <code>sanitizeDerivationName :: String -> String</code></p>
|
||
<p>Creates a valid derivation name from a potentially invalid one.</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<div class="highlight"><pre><span></span><code># `lib.strings.sanitizeDerivationName` usage example
|
||
</code></pre></div>
|
||
<div class="highlight"><pre><span></span><code>sanitizeDerivationName <span class="s2">"../hello.bar # foo"</span>
|
||
<span class="o">=></span> <span class="s2">"-hello.bar-foo"</span>
|
||
sanitizeDerivationName <span class="s2">""</span>
|
||
<span class="o">=></span> <span class="s2">"unknown"</span>
|
||
sanitizeDerivationName pkgs<span class="o">.</span><span class="ss">hello</span>
|
||
<span class="o">=></span> <span class="s2">"-nix-store-2g75chlbpxlrqn15zlby2dfh8hr9qwbk-hello-2.10"</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L1189">lib/strings.nix:1189</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.levenshtein"><code>lib.strings.levenshtein</code></h2>
|
||
<p><strong>Type</strong>: <code>levenshtein :: string -> string -> int</code></p>
|
||
<p>Computes the Levenshtein distance between two strings.
|
||
Complexity O(n*m) where n and m are the lengths of the strings.
|
||
Algorithm adjusted from https://stackoverflow.com/a/9750974/6605742</p>
|
||
<p><code>a</code></p>
|
||
<p>: Function argument</p>
|
||
<p><code>b</code></p>
|
||
<p>: Function argument</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<h1 id="libstringslevenshtein-usage-example"><code>lib.strings.levenshtein</code> usage example</h1>
|
||
</div>
|
||
<div class="highlight"><pre><span></span><code>levenshtein <span class="s2">"foo"</span> <span class="s2">"foo"</span>
|
||
<span class="o">=></span> <span class="mi">0</span>
|
||
levenshtein <span class="s2">"book"</span> <span class="s2">"hook"</span>
|
||
<span class="o">=></span> <span class="mi">1</span>
|
||
levenshtein <span class="s2">"hello"</span> <span class="s2">"Heyo"</span>
|
||
<span class="o">=></span> <span class="mi">3</span>
|
||
</code></pre></div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L1228">lib/strings.nix:1228</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.commonPrefixLength"><code>lib.strings.commonPrefixLength</code></h2>
|
||
<p>Returns the length of the prefix common to both strings.</p>
|
||
<p><code>a</code></p>
|
||
<p>: Function argument</p>
|
||
<p><code>b</code></p>
|
||
<p>: Function argument</p>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L1249">lib/strings.nix:1249</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.commonSuffixLength"><code>lib.strings.commonSuffixLength</code></h2>
|
||
<p>Returns the length of the suffix common to both strings.</p>
|
||
<p><code>a</code></p>
|
||
<p>: Function argument</p>
|
||
<p><code>b</code></p>
|
||
<p>: Function argument</p>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L1257">lib/strings.nix:1257</a> in <code><nixpkgs></code>.</p>
|
||
<h2 id="function-library-lib.strings.levenshteinAtMost"><code>lib.strings.levenshteinAtMost</code></h2>
|
||
<p><strong>Type</strong>: <code>levenshteinAtMost :: int -> string -> string -> bool</code></p>
|
||
<p>Returns whether the levenshtein distance between two strings is at most some value
|
||
Complexity is O(min(n,m)) for k <= 2 and O(n*m) otherwise</p>
|
||
<div class="admonition example">
|
||
<p class="admonition-title">Example</p>
|
||
<div class="highlight"><pre><span></span><code># `lib.strings.levenshteinAtMost` usage example
|
||
</code></pre></div>
|
||
<div class="highlight"><pre><span></span><code>levenshteinAtMost <span class="mi">0</span> <span class="s2">"foo"</span> <span class="s2">"foo"</span>
|
||
<span class="o">=></span> <span class="no">true</span>
|
||
levenshteinAtMost <span class="mi">1</span> <span class="s2">"foo"</span> <span class="s2">"boa"</span>
|
||
<span class="o">=></span> <span class="no">false</span>
|
||
levenshteinAtMost <span class="mi">2</span> <span class="s2">"foo"</span> <span class="s2">"boa"</span>
|
||
<span class="o">=></span> <span class="no">true</span>
|
||
levenshteinAtMost <span class="mi">2</span> <span class="s2">"This is a sentence"</span> <span class="s2">"this is a sentense."</span>
|
||
<span class="o">=></span> <span class="no">false</span>
|
||
levenshteinAtMost <span class="mi">3</span> <span class="s2">"This is a sentence"</span> <span class="s2">"this is a sentense."</span>
|
||
<span class="o">=></span> <span class="no">true</span>
|
||
</code></pre></div>
|
||
</div>
|
||
<p>Located at <a href="https://github.com/NixOS/nixpkgs/blob/master/lib/strings.nix#L1281">lib/strings.nix:1281</a> in <code><nixpkgs></code>.</p>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
</article>
|
||
</div>
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