---
layout: default
title: "Strings"
parent: Composite
ancestor: Funcons-beta

---

[Funcons-beta] : [Strings.cbs]
-----------------------------

### Strings

<div class="highlighter-rouge"><pre class="highlight"><code>[
  <i class="keyword">Type</i>   <span class="name"><a href="#Name_strings">strings</a></span>
  <i class="keyword">Funcon</i> <span class="name"><a href="#Name_string">string</a></span>
  <i class="keyword">Funcon</i> <span class="name"><a href="#Name_string-append">string-append</a></span>
  <i class="keyword">Funcon</i> <span class="name"><a href="#Name_to-string">to-string</a></span>
]</code></pre></div>



<div class="highlighter-rouge"><pre class="highlight"><code><i class="keyword">Type</i>
  <span class="name"><span id="Name_strings">strings</span></span> ~> <span class="name"><a href="../Lists/index.html#Name_lists">lists</a></span>(<span class="name"><a href="../../Primitive/Characters/index.html#Name_characters">characters</a></span>)</code></pre></div>



<div class="highlighter-rouge"><pre class="highlight"><code><i class="keyword">Funcon</i>
  <span class="name"><span id="Name_string">string</span></span>(<span id="Variable47_C*"><i class="var">C<sup class="sup">*</sup></i></span>:<span class="name"><a href="../../Primitive/Characters/index.html#Name_characters">characters</a></span><sup class="sup">*</sup>) : =><span class="name"><a href="#Name_strings">strings</a></span>
    ~> [<a href="#Variable47_C*"><i class="var">C<sup class="sup">*</sup></i></a>]</code></pre></div>


  Literal strings are written <code>"C1...Cn"</code>.
  A double-quote or backslash needs to be escaped: <code>"...\"..."</code>, <code>"...\\..."</code>.



<div class="highlighter-rouge"><pre class="highlight"><code><i class="keyword">Funcon</i>
  <span class="name"><span id="Name_string-append">string-append</span></span>(<span id="Variable119_S*"><i class="var">S<sup class="sup">*</sup></i></span>:<span class="name"><a href="#Name_strings">strings</a></span><sup class="sup">*</sup>) : =><span class="name"><a href="#Name_strings">strings</a></span>
    ~> <span class="name"><a href="../Lists/index.html#Name_list-append">list-append</a></span>(<a href="#Variable119_S*"><i class="var">S<sup class="sup">*</sup></i></a>)</code></pre></div>



<div class="highlighter-rouge"><pre class="highlight"><code><i class="keyword">Built-in</i> <i class="keyword">Funcon</i>
  <span class="name"><span id="Name_to-string">to-string</span></span>(_:<span class="name"><a href="../../Value-Types/index.html#Name_ground-values">ground-values</a></span>) : =><span class="name"><a href="#Name_strings">strings</a></span></code></pre></div>

  The strings returned by <code><span class="name"><a href="#Name_to-string">to-string</a></span>(<i class="var">GV</i>)</code> are unspecified, except that when
  <code><i class="var">GV</i></code> is already a string, it is returned unchanged.

<div class="highlighter-rouge"><pre class="highlight"><code><i class="keyword">Assert</i>
  <span class="name"><a href="#Name_to-string">to-string</a></span>(<i class="var">S</i>:<span class="name"><a href="#Name_strings">strings</a></span>) == <i class="var">S</i></code></pre></div>



____

From the [PLanCompS Project] | [CBS-beta issues...] | [Suggest an improvement...]

[Strings.cbs]: Strings.cbs 
  "CBS SOURCE FILE"
[Funcons-beta]: /CBS-beta/docs/Funcons-beta
  "FUNCONS-BETA"
[Unstable-Funcons-beta]: /CBS-beta/docs/Unstable-Funcons-beta
  "UNSTABLE-FUNCONS-BETA"
[Languages-beta]: /CBS-beta/docs/Languages-beta
  "LANGUAGES-BETA"
[Unstable-Languages-beta]: /CBS-beta/docs/Unstable-Languages-beta
  "UNSTABLE-LANGUAGES-BETA"
[CBS-beta]: /CBS-beta "CBS-BETA"
[PLanCompS Project]: https://plancomps.github.io
  "PROGRAMMING LANGUAGE COMPONENTS AND SPECIFICATIONS PROJECT HOME PAGE"
[CBS-beta issues...]: https://github.com/plancomps/CBS-beta/issues
  "CBS-BETA ISSUE REPORTS ON GITHUB"
[Suggest an improvement...]: mailto:plancomps@gmail.com?Subject=CBS-beta%20-%20comment&Body=Re%3A%20CBS-beta%20specification%20at%20Values/Composite/Strings/Strings.cbs%0A%0AComment/Query/Issue/Suggestion%3A%0A%0A%0ASignature%3A%0A 
  "GENERATE AN EMAIL TEMPLATE"