sass-site/source/documentation/Sass/Script.html
2018-10-22 14:13:05 -07:00

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Module: Sass::Script
&mdash; Documentation by YARD 0.9.12
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<link rel="stylesheet" href="../css/style.css" type="text/css" charset="utf-8" />
<link rel="stylesheet" href="../../assets/css/docs.css" type="text/css" charset="utf-8" />
<script type="text/javascript" charset="utf-8">
hasFrames = window.top.frames.main ? true : false;
relpath = '../';
framesUrl = "../frames.html#!Sass/Script.html";
</script>
<script type="text/javascript" charset="utf-8" src="../js/jquery.js"></script>
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<div id="menu">
<a href="../_index.html">Index (S)</a> &raquo;
<span class='title'><span class='object_link'><a href="../Sass.html" title="Sass (module)">Sass</a></span></span>
&raquo;
<span class="title">Script</span>
<div class="noframes"><span class="title">(</span><a href="." target="_top">no frames</a><span class="title">)</span></div>
</div>
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<a class="full_list_link" id="class_list_link"
href="../class_list.html">
Class List
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<a class="full_list_link" id="method_list_link"
href="../method_list.html">
Method List
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href="../file_list.html">
File List
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<iframe id="search_frame"></iframe>
<div id="content"><h1>Module: Sass::Script
</h1>
<dl class="box">
<dt class="r1 last">Defined in:</dt>
<dd class="r1 last">.ruby-sass/lib/sass/script.rb<span class="defines">,<br />
.ruby-sass/lib/sass/script/css_lexer.rb,<br /> .ruby-sass/lib/sass/script/css_parser.rb,<br /> .ruby-sass/lib/sass/script/functions.rb,<br /> .ruby-sass/lib/sass/script/lexer.rb,<br /> .ruby-sass/lib/sass/script/parser.rb</span>
</dd>
</dl>
<div class="clear"></div>
<h2>Overview</h2><div class="docstring">
<div class="discussion">
<p>SassScript is code that&#39;s embedded in Sass documents to allow for
property values to be computed from variables.</p>
<p>This module contains code that handles the parsing and evaluation of
SassScript.</p>
</div>
</div>
<div class="tags">
</div><h2>Defined Under Namespace</h2>
<p class="children">
<strong class="modules">Modules:</strong> <span class='object_link'><a href="Script/Functions.html" title="Sass::Script::Functions (module)">Functions</a></span>, <span class='object_link'><a href="Script/Tree.html" title="Sass::Script::Tree (module)">Tree</a></span>, <span class='object_link'><a href="Script/Value.html" title="Sass::Script::Value (module)">Value</a></span>
<strong class="classes">Classes:</strong> <span class='object_link'><a href="Script/CssLexer.html" title="Sass::Script::CssLexer (class)">CssLexer</a></span>, <span class='object_link'><a href="Script/CssParser.html" title="Sass::Script::CssParser (class)">CssParser</a></span>, <span class='object_link'><a href="Script/Lexer.html" title="Sass::Script::Lexer (class)">Lexer</a></span>, <span class='object_link'><a href="Script/Parser.html" title="Sass::Script::Parser (class)">Parser</a></span>
</p>
<h2>Constant Summary</h2>
<dl class="constants">
<dt id="MATCH-constant" class="">MATCH =
<div class="docstring">
<div class="discussion">
<p>The regular expression used to parse variables.</p>
</div>
</div>
<div class="tags">
</div>
</dt>
<dd><pre class="code"><span class='tstring'><span class='regexp_beg'>/</span><span class='tstring_content'>^\$(</span><span class='embexpr_beg'>#{</span><span class='const'><span class='object_link'><a href="../Sass.html" title="Sass (module)">Sass</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="SCSS.html" title="Sass::SCSS (module)">SCSS</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="SCSS/RX.html" title="Sass::SCSS::RX (module)">RX</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="SCSS/RX.html#IDENT-constant" title="Sass::SCSS::RX::IDENT (constant)">IDENT</a></span></span><span class='embexpr_end'>}</span><span class='tstring_content'>)\s*:\s*(.+?)
(!</span><span class='embexpr_beg'>#{</span><span class='const'><span class='object_link'><a href="../Sass.html" title="Sass (module)">Sass</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="SCSS.html" title="Sass::SCSS (module)">SCSS</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="SCSS/RX.html" title="Sass::SCSS::RX (module)">RX</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="SCSS/RX.html#IDENT-constant" title="Sass::SCSS::RX::IDENT (constant)">IDENT</a></span></span><span class='embexpr_end'>}</span><span class='tstring_content'>(?:\s+!</span><span class='embexpr_beg'>#{</span><span class='const'><span class='object_link'><a href="../Sass.html" title="Sass (module)">Sass</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="SCSS.html" title="Sass::SCSS (module)">SCSS</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="SCSS/RX.html" title="Sass::SCSS::RX (module)">RX</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="SCSS/RX.html#IDENT-constant" title="Sass::SCSS::RX::IDENT (constant)">IDENT</a></span></span><span class='embexpr_end'>}</span><span class='tstring_content'>)*)?$</span><span class='regexp_end'>/x</span></span></pre></dd>
<dt id="VALIDATE-constant" class="">VALIDATE =
<div class="docstring">
<div class="discussion">
<p>The regular expression used to validate variables without matching.</p>
</div>
</div>
<div class="tags">
</div>
</dt>
<dd><pre class="code"><span class='tstring'><span class='regexp_beg'>/</span><span class='tstring_content'>^\$</span><span class='embexpr_beg'>#{</span><span class='const'><span class='object_link'><a href="../Sass.html" title="Sass (module)">Sass</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="SCSS.html" title="Sass::SCSS (module)">SCSS</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="SCSS/RX.html" title="Sass::SCSS::RX (module)">RX</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="SCSS/RX.html#IDENT-constant" title="Sass::SCSS::RX::IDENT (constant)">IDENT</a></span></span><span class='embexpr_end'>}</span><span class='tstring_content'>$</span><span class='regexp_end'>/</span></span></pre></dd>
<dt id="CONST_RENAMES-constant" class="">CONST_RENAMES =
</dt>
<dd><pre class="code"><span class='lbrace'>{</span>
<span class='symbol'>:Literal</span> <span class='op'>=&gt;</span> <span class='const'><span class='object_link'><a href="../Sass.html" title="Sass (module)">Sass</a></span></span><span class='op'>::</span><span class='const'>Script</span><span class='op'>::</span><span class='const'><span class='object_link'><a href="Script/Value.html" title="Sass::Script::Value (module)">Value</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="Script/Value/Base.html" title="Sass::Script::Value::Base (class)">Base</a></span></span><span class='comma'>,</span>
<span class='symbol'>:ArgList</span> <span class='op'>=&gt;</span> <span class='const'><span class='object_link'><a href="../Sass.html" title="Sass (module)">Sass</a></span></span><span class='op'>::</span><span class='const'>Script</span><span class='op'>::</span><span class='const'><span class='object_link'><a href="Script/Value.html" title="Sass::Script::Value (module)">Value</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="Script/Value/ArgList.html" title="Sass::Script::Value::ArgList (class)">ArgList</a></span></span><span class='comma'>,</span>
<span class='symbol'>:Bool</span> <span class='op'>=&gt;</span> <span class='const'><span class='object_link'><a href="../Sass.html" title="Sass (module)">Sass</a></span></span><span class='op'>::</span><span class='const'>Script</span><span class='op'>::</span><span class='const'><span class='object_link'><a href="Script/Value.html" title="Sass::Script::Value (module)">Value</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="Script/Value/Bool.html" title="Sass::Script::Value::Bool (class)">Bool</a></span></span><span class='comma'>,</span>
<span class='symbol'>:Color</span> <span class='op'>=&gt;</span> <span class='const'><span class='object_link'><a href="../Sass.html" title="Sass (module)">Sass</a></span></span><span class='op'>::</span><span class='const'>Script</span><span class='op'>::</span><span class='const'><span class='object_link'><a href="Script/Value.html" title="Sass::Script::Value (module)">Value</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="Script/Value/Color.html" title="Sass::Script::Value::Color (class)">Color</a></span></span><span class='comma'>,</span>
<span class='symbol'>:List</span> <span class='op'>=&gt;</span> <span class='const'><span class='object_link'><a href="../Sass.html" title="Sass (module)">Sass</a></span></span><span class='op'>::</span><span class='const'>Script</span><span class='op'>::</span><span class='const'><span class='object_link'><a href="Script/Value.html" title="Sass::Script::Value (module)">Value</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="Script/Value/List.html" title="Sass::Script::Value::List (class)">List</a></span></span><span class='comma'>,</span>
<span class='symbol'>:Null</span> <span class='op'>=&gt;</span> <span class='const'><span class='object_link'><a href="../Sass.html" title="Sass (module)">Sass</a></span></span><span class='op'>::</span><span class='const'>Script</span><span class='op'>::</span><span class='const'><span class='object_link'><a href="Script/Value.html" title="Sass::Script::Value (module)">Value</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="Script/Value/Null.html" title="Sass::Script::Value::Null (class)">Null</a></span></span><span class='comma'>,</span>
<span class='symbol'>:Number</span> <span class='op'>=&gt;</span> <span class='const'><span class='object_link'><a href="../Sass.html" title="Sass (module)">Sass</a></span></span><span class='op'>::</span><span class='const'>Script</span><span class='op'>::</span><span class='const'><span class='object_link'><a href="Script/Value.html" title="Sass::Script::Value (module)">Value</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="Script/Value/Number.html" title="Sass::Script::Value::Number (class)">Number</a></span></span><span class='comma'>,</span>
<span class='symbol'>:String</span> <span class='op'>=&gt;</span> <span class='const'><span class='object_link'><a href="../Sass.html" title="Sass (module)">Sass</a></span></span><span class='op'>::</span><span class='const'>Script</span><span class='op'>::</span><span class='const'><span class='object_link'><a href="Script/Value.html" title="Sass::Script::Value (module)">Value</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="Script/Value/String.html" title="Sass::Script::Value::String (class)">String</a></span></span><span class='comma'>,</span>
<span class='symbol'>:Node</span> <span class='op'>=&gt;</span> <span class='const'><span class='object_link'><a href="../Sass.html" title="Sass (module)">Sass</a></span></span><span class='op'>::</span><span class='const'>Script</span><span class='op'>::</span><span class='const'><span class='object_link'><a href="Script/Tree.html" title="Sass::Script::Tree (module)">Tree</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="Script/Tree/Node.html" title="Sass::Script::Tree::Node (class)">Node</a></span></span><span class='comma'>,</span>
<span class='symbol'>:Funcall</span> <span class='op'>=&gt;</span> <span class='const'><span class='object_link'><a href="../Sass.html" title="Sass (module)">Sass</a></span></span><span class='op'>::</span><span class='const'>Script</span><span class='op'>::</span><span class='const'><span class='object_link'><a href="Script/Tree.html" title="Sass::Script::Tree (module)">Tree</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="Script/Tree/Funcall.html" title="Sass::Script::Tree::Funcall (class)">Funcall</a></span></span><span class='comma'>,</span>
<span class='symbol'>:Interpolation</span> <span class='op'>=&gt;</span> <span class='const'><span class='object_link'><a href="../Sass.html" title="Sass (module)">Sass</a></span></span><span class='op'>::</span><span class='const'>Script</span><span class='op'>::</span><span class='const'><span class='object_link'><a href="Script/Tree.html" title="Sass::Script::Tree (module)">Tree</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="Script/Tree/Interpolation.html" title="Sass::Script::Tree::Interpolation (class)">Interpolation</a></span></span><span class='comma'>,</span>
<span class='symbol'>:Operation</span> <span class='op'>=&gt;</span> <span class='const'><span class='object_link'><a href="../Sass.html" title="Sass (module)">Sass</a></span></span><span class='op'>::</span><span class='const'>Script</span><span class='op'>::</span><span class='const'><span class='object_link'><a href="Script/Tree.html" title="Sass::Script::Tree (module)">Tree</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="Script/Tree/Operation.html" title="Sass::Script::Tree::Operation (class)">Operation</a></span></span><span class='comma'>,</span>
<span class='symbol'>:StringInterpolation</span> <span class='op'>=&gt;</span> <span class='const'><span class='object_link'><a href="../Sass.html" title="Sass (module)">Sass</a></span></span><span class='op'>::</span><span class='const'>Script</span><span class='op'>::</span><span class='const'><span class='object_link'><a href="Script/Tree.html" title="Sass::Script::Tree (module)">Tree</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="Script/Tree/StringInterpolation.html" title="Sass::Script::Tree::StringInterpolation (class)">StringInterpolation</a></span></span><span class='comma'>,</span>
<span class='symbol'>:UnaryOperation</span> <span class='op'>=&gt;</span> <span class='const'><span class='object_link'><a href="../Sass.html" title="Sass (module)">Sass</a></span></span><span class='op'>::</span><span class='const'>Script</span><span class='op'>::</span><span class='const'><span class='object_link'><a href="Script/Tree.html" title="Sass::Script::Tree (module)">Tree</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="Script/Tree/UnaryOperation.html" title="Sass::Script::Tree::UnaryOperation (class)">UnaryOperation</a></span></span><span class='comma'>,</span>
<span class='symbol'>:Variable</span> <span class='op'>=&gt;</span> <span class='const'><span class='object_link'><a href="../Sass.html" title="Sass (module)">Sass</a></span></span><span class='op'>::</span><span class='const'>Script</span><span class='op'>::</span><span class='const'><span class='object_link'><a href="Script/Tree.html" title="Sass::Script::Tree (module)">Tree</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="Script/Tree/Variable.html" title="Sass::Script::Tree::Variable (class)">Variable</a></span></span><span class='comma'>,</span>
<span class='rbrace'>}</span></pre></dd>
</dl>
<h2>
Class Method Summary
<small>(<a href="#" class="summary_toggle">collapse</a>)</small>
</h2>
<ul class="summary">
<li class="public ">
<span class="summary_signature">
<a href="#const_missing-class_method" title="const_missing (class method)">.<strong>const_missing</strong>(name) &#x21d2; Object </a>
</span>
<span class="summary_desc"><div class='inline'></div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#parse-class_method" title="parse (class method)">.<strong>parse</strong>(value, line, offset, options = {}) &#x21d2; Script::Tree::Node </a>
</span>
<span class="summary_desc"><div class='inline'>
<p>Parses a string of SassScript.</p>
</div></span>
</li>
</ul>
<div id="class_method_details" class="method_details_list">
<h2>Class Method Details</h2>
<div class="method_details first">
<h3 class="signature first" id="const_missing-class_method">
.<strong>const_missing</strong>(name) &#x21d2; <tt>Object</tt>
</h3><table class="source_code">
<tr>
<td>
<pre class="lines">
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</td>
<td>
<pre class="code"><span class="info file"># File '.ruby-sass/lib/sass/script.rb', line 59</span>
<span class='kw'>def</span> <span class='kw'>self</span><span class='period'>.</span><span class='id identifier rubyid_const_missing'>const_missing</span><span class='lparen'>(</span><span class='id identifier rubyid_name'>name</span><span class='rparen'>)</span>
<span class='id identifier rubyid_klass'>klass</span> <span class='op'>=</span> <span class='const'><span class='object_link'><a href="#CONST_RENAMES-constant" title="Sass::Script::CONST_RENAMES (constant)">CONST_RENAMES</a></span></span><span class='lbracket'>[</span><span class='id identifier rubyid_name'>name</span><span class='rbracket'>]</span>
<span class='kw'>super</span> <span class='kw'>unless</span> <span class='id identifier rubyid_klass'>klass</span>
<span class='const'><span class='object_link'><a href="#CONST_RENAMES-constant" title="Sass::Script::CONST_RENAMES (constant)">CONST_RENAMES</a></span></span><span class='period'>.</span><span class='id identifier rubyid_each'>each</span> <span class='lbrace'>{</span><span class='op'>|</span><span class='id identifier rubyid_n'>n</span><span class='comma'>,</span> <span class='id identifier rubyid_k'>k</span><span class='op'>|</span> <span class='id identifier rubyid_const_set'>const_set</span><span class='lparen'>(</span><span class='id identifier rubyid_n'>n</span><span class='comma'>,</span> <span class='id identifier rubyid_k'>k</span><span class='rparen'>)</span><span class='rbrace'>}</span>
<span class='id identifier rubyid_klass'>klass</span>
<span class='kw'>end</span></pre>
</td>
</tr>
</table>
</div>
<div class="method_details ">
<h3 class="signature " id="parse-class_method">
.<strong>parse</strong>(value, line, offset, options = {}) &#x21d2; <tt><span class='object_link'><a href="Script/Tree/Node.html" title="Sass::Script::Tree::Node (class)">Script::Tree::Node</a></span></tt>
</h3><div class="docstring">
<div class="discussion">
<p>Parses a string of SassScript</p>
</div>
</div>
<div class="tags">
<p class="tag_title">Parameters:</p>
<ul class="param">
<li>
<span class='name'>value</span>
<span class='type'>(<tt>String</tt>)</span>
&mdash;
<div class='inline'>
<p>The SassScript</p>
</div>
</li>
<li>
<span class='name'>line</span>
<span class='type'>(<tt>Integer</tt>)</span>
&mdash;
<div class='inline'>
<p>The number of the line on which the SassScript appeared. Used for error
reporting</p>
</div>
</li>
<li>
<span class='name'>offset</span>
<span class='type'>(<tt>Integer</tt>)</span>
&mdash;
<div class='inline'>
<p>The number of characters in on `line` that the SassScript started. Used for
error reporting</p>
</div>
</li>
<li>
<span class='name'>options</span>
<span class='type'>(<tt>{Symbol =&gt; Object}</tt>)</span>
<em class="default">(defaults to: <tt>{}</tt>)</em>
&mdash;
<div class='inline'>
<p>An options hash; see <a href="../file.SASS_REFERENCE.html#Options" title="the Sass options documentation">the Sass options documentation</a></p>
</div>
</li>
</ul>
<p class="tag_title">Returns:</p>
<ul class="return">
<li>
<span class='type'>(<tt><span class='object_link'><a href="Script/Tree/Node.html" title="Sass::Script::Tree::Node (class)">Script::Tree::Node</a></span></tt>)</span>
&mdash;
<div class='inline'>
<p>The root node of the parse tree</p>
</div>
</li>
</ul>
</div><table class="source_code">
<tr>
<td>
<pre class="lines">
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</td>
<td>
<pre class="code"><span class="info file"># File '.ruby-sass/lib/sass/script.rb', line 26</span>
<span class='kw'>def</span> <span class='kw'>self</span><span class='period'>.</span><span class='id identifier rubyid_parse'>parse</span><span class='lparen'>(</span><span class='id identifier rubyid_value'>value</span><span class='comma'>,</span> <span class='id identifier rubyid_line'>line</span><span class='comma'>,</span> <span class='id identifier rubyid_offset'>offset</span><span class='comma'>,</span> <span class='id identifier rubyid_options'>options</span> <span class='op'>=</span> <span class='lbrace'>{</span><span class='rbrace'>}</span><span class='rparen'>)</span>
<span class='const'><span class='object_link'><a href="Script/Parser.html" title="Sass::Script::Parser (class)">Parser</a></span></span><span class='period'>.</span><span class='id identifier rubyid_parse'><span class='object_link'><a href="Script/Parser.html#parse-class_method" title="Sass::Script::Parser.parse (method)">parse</a></span></span><span class='lparen'>(</span><span class='id identifier rubyid_value'>value</span><span class='comma'>,</span> <span class='id identifier rubyid_line'>line</span><span class='comma'>,</span> <span class='id identifier rubyid_offset'>offset</span><span class='comma'>,</span> <span class='id identifier rubyid_options'>options</span><span class='rparen'>)</span>
<span class='kw'>rescue</span> <span class='const'><span class='object_link'><a href="../Sass.html" title="Sass (module)">Sass</a></span></span><span class='op'>::</span><span class='const'><span class='object_link'><a href="SyntaxError.html" title="Sass::SyntaxError (class)">SyntaxError</a></span></span> <span class='op'>=&gt;</span> <span class='id identifier rubyid_e'>e</span>
<span class='id identifier rubyid_e'>e</span><span class='period'>.</span><span class='id identifier rubyid_message'>message</span> <span class='op'>&lt;&lt;</span> <span class='tstring'><span class='tstring_beg'>&quot;</span><span class='tstring_content'>: </span><span class='embexpr_beg'>#{</span><span class='id identifier rubyid_value'>value</span><span class='period'>.</span><span class='id identifier rubyid_inspect'>inspect</span><span class='embexpr_end'>}</span><span class='tstring_content'>.</span><span class='tstring_end'>&quot;</span></span> <span class='kw'>if</span> <span class='id identifier rubyid_e'>e</span><span class='period'>.</span><span class='id identifier rubyid_message'>message</span> <span class='op'>==</span> <span class='tstring'><span class='tstring_beg'>&quot;</span><span class='tstring_content'>SassScript error</span><span class='tstring_end'>&quot;</span></span>
<span class='id identifier rubyid_e'>e</span><span class='period'>.</span><span class='id identifier rubyid_modify_backtrace'>modify_backtrace</span><span class='lparen'>(</span><span class='symbol'>:line</span> <span class='op'>=&gt;</span> <span class='id identifier rubyid_line'>line</span><span class='comma'>,</span> <span class='symbol'>:filename</span> <span class='op'>=&gt;</span> <span class='id identifier rubyid_options'>options</span><span class='lbracket'>[</span><span class='symbol'>:filename</span><span class='rbracket'>]</span><span class='rparen'>)</span>
<span class='id identifier rubyid_raise'>raise</span> <span class='id identifier rubyid_e'>e</span>
<span class='kw'>end</span></pre>
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