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<h1 class="title">cmdr::validate(n) 1.3.1 doc "Cmdr, a framework for command line parsing and dispatch"</h1>
<div id="name" class="section"><h2><a name="name">Name</a></h2>
<p>cmdr::validate - Cmdr - Standard validation types for parameters</p>
</div>
<div id="toc" class="section"><h2><a name="toc">Table Of Contents</a></h2>
<ul class="toc">
<li class="section"><a href="#toc">Table Of Contents</a></li>
<li class="section"><a href="#synopsis">Synopsis</a></li>
<li class="section"><a href="#section1">Description</a></li>
<li class="section"><a href="#section2">Standard Types</a></li>
<li class="section"><a href="#section3">Standard Selection Rules</a></li>
<li class="section"><a href="#section4">Bugs, Ideas, Feedback</a></li>
<li class="section"><a href="#keywords">Keywords</a></li>
<li class="section"><a href="#copyright">Copyright</a></li>
</ul>
</div>
<div id="synopsis" class="section"><h2><a name="synopsis">Synopsis</a></h2>
<div class="synopsis">
<ul class="requirements">
<li>package require <b class="pkgname">cmdr::validate</b></li>
</ul>
</div>
</div>
<div id="section1" class="section"><h2><a name="section1">Description</a></h2>
<p>Welcome to the Cmdr project, written by Andreas Kupries.</p>
<p>For availability please read <i class="term"><a href="cmdr_howto_get_sources.html">Cmdr - How To Get The Sources</a></i>.</p>
<p>Validation types are Cmdr's answer to the necessity of
moving between the string and internal representations of
<b class="package"><a href="cmdr_parameter.html">cmdr::parameter</a></b> instances.</p>
<p>This internal package implements the twelve standard validation
types shown below. The <b class="cmd">validate</b> command of the parameter
declaration DSL can use these by name. Non-standard types have to
provide a proper command prefix instead.</p>
<p>Readers interested in writing their own custom validation types
should read <i class="term"><a href="cmdr_vtypes.html">Cmdr - Writing custom validation types</a></i>.</p>
</div>
<div id="section2" class="section"><h2><a name="section2">Standard Types</a></h2>
<dl class="definitions">
<dt>boolean</dt>
<dd><p>Completable. Accepts a Tcl boolean.</p></dd>
<dt>identity</dt>
<dd></dd>
<dt>pass</dt>
<dd></dd>
<dt>str</dt>
<dd><p>Infinite. Accepts all strings.</p></dd>
<dt>integer</dt>
<dd><p>Infinite. Accepts a Tcl integer number.</p></dd>
<dt>double</dt>
<dd><p>Infinite. Accepts a Tcl double number.</p></dd>
<dt>percent</dt>
<dd><p>Infinite. Accepts a Tcl double number in the range [0,100].</p></dd>
<dt>rdirectory</dt>
<dd><p>Completable. Accepts a readable directory (path).</p></dd>
<dt>rfile</dt>
<dd><p>Completable. Accepts a readable file (path).</p></dd>
<dt>rpath</dt>
<dd><p>Completable. Accepts a readable path.</p></dd>
<dt>rwdirectory</dt>
<dd><p>Completable. Accepts a read/writable directory (path).</p></dd>
<dt>rwfile</dt>
<dd><p>Completable. Accepts a read/writable file (path).</p></dd>
<dt>rwpath</dt>
<dd><p>Completable. Accepts a read/writable path.</p></dd>
</dl>
</div>
<div id="section3" class="section"><h2><a name="section3">Standard Selection Rules</a></h2>
<p>Because of the aformentioned necessity all parameters must have
a validation type assigned to them, and the framework will choose
which, if the user did not. This choice is made per the six rules
below and always returns one of the builtins described here.</p>
<ol class="enumerated">
<li><p>Use <b class="const">identity</b> if a <b class="cmd">generate</b> callback is specified.</p></li>
<li><p>Use <b class="const">boolean</b> if no <b class="cmd">default</b> is specified and the parameter is an <i class="term">option</i>.</p></li>
<li><p>Use <b class="const">identity</b> if no <b class="cmd">default</b> is specified and the parameter is an <i class="term">input</i>.</p></li>
<li><p>Use <b class="const">boolean</b> if the specified <b class="cmd">default</b> value is a Tcl boolean.</p></li>
<li><p>Use <b class="const">integer</b> if the specified <b class="cmd">default</b> value is a Tcl integer.</p></li>
<li><p>Use <b class="const">identity</b> as fallback of last resort.</p></li>
</ol>
</div>
<div id="section4" class="section"><h2><a name="section4">Bugs, Ideas, Feedback</a></h2>
<p>Both the package(s) and this documentation will undoubtedly contain
bugs and other problems.
Please report such at
<a href="https:/core.tcl.tk/akupries/cmdr">Cmdr Tickets</a>.</p>
<p>Please also report any ideas you may have for enhancements of
either package(s) and/or documentation.</p>
</div>
<div id="keywords" class="section"><h2><a name="keywords">Keywords</a></h2>
<p><a href="../../index.html#key4">arguments</a>, <a href="../../index.html#key5">command hierarchy</a>, <a href="../../index.html#key9">command line completion</a>, <a href="../../index.html#key11">command line handling</a>, <a href="../../index.html#key13">command tree</a>, <a href="../../index.html#key0">editing command line</a>, <a href="../../index.html#key8">help for command line</a>, <a href="../../index.html#key6">hierarchy of commands</a>, <a href="../../index.html#key3">interactive command shell</a>, <a href="../../index.html#key1">optional arguments</a>, <a href="../../index.html#key2">options</a>, <a href="../../index.html#key12">parameters</a>, <a href="../../index.html#key10">processing command line</a>, <a href="../../index.html#key7">tree of commands</a></p>
</div>
<div id="copyright" class="section"><h2><a name="copyright">Copyright</a></h2>
<p>Copyright © 2013-2016 Andreas Kupries<br>
Copyright © 2013-2016 Documentation, Andreas Kupries</p>
</div>
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