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<div class="section" id="parsing-with-tinycss">
<h1>Parsing with tinycss<a class="headerlink" href="#parsing-with-tinycss" title="Permalink to this headline">¶</a></h1>
<div class="section" id="quickstart">
<h2>Quickstart<a class="headerlink" href="#quickstart" title="Permalink to this headline">¶</a></h2>
<p>Import <em>tinycss</em>, make a parser object with the features you want,
and parse a stylesheet:</p>
<div class="highlight-python"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="kn">import</span> <span class="nn">tinycss</span>
<span class="gp">>>> </span><span class="n">parser</span> <span class="o">=</span> <span class="n">tinycss</span><span class="o">.</span><span class="n">make_parser</span><span class="p">(</span><span class="s1">'page3'</span><span class="p">)</span>
<span class="gp">>>> </span><span class="n">stylesheet</span> <span class="o">=</span> <span class="n">parser</span><span class="o">.</span><span class="n">parse_stylesheet_bytes</span><span class="p">(</span><span class="n">b</span><span class="s1">'''@import "foo.css";</span>
<span class="gp">... </span><span class="s1"> p.error { color: red } @lorem-ipsum;</span>
<span class="gp">... </span><span class="s1"> @page tables { size: landscape }'''</span><span class="p">)</span>
<span class="gp">>>> </span><span class="n">stylesheet</span><span class="o">.</span><span class="n">rules</span>
<span class="go">[<ImportRule 1:1 foo.css>, <RuleSet at 2:5 p.error>, <PageRule 3:5 ('tables', None)>]</span>
<span class="gp">>>> </span><span class="n">stylesheet</span><span class="o">.</span><span class="n">errors</span>
<span class="go">[ParseError('Parse error at 2:29, unknown at-rule in stylesheet context: @lorem-ipsum',)]</span>
</pre></div>
</div>
<p>You’ll get a <a class="reference internal" href="#tinycss.css21.Stylesheet" title="tinycss.css21.Stylesheet"><code class="xref py py-class docutils literal"><span class="pre">Stylesheet</span></code></a> object which contains
all the parsed content as well as a list of encountered errors.</p>
</div>
<div class="section" id="parsers">
<h2>Parsers<a class="headerlink" href="#parsers" title="Permalink to this headline">¶</a></h2>
<p>Parsers are subclasses of <a class="reference internal" href="#tinycss.css21.CSS21Parser" title="tinycss.css21.CSS21Parser"><code class="xref py py-class docutils literal"><span class="pre">tinycss.css21.CSS21Parser</span></code></a>. Various
subclasses add support for more syntax. You can choose which features to
enable by making a new parser class with multiple inheritance, but there
is also a convenience function to do that:</p>
<span class="target" id="module-tinycss"></span><dl class="function">
<dt id="tinycss.make_parser">
<code class="descclassname">tinycss.</code><code class="descname">make_parser</code><span class="sig-paren">(</span><em>*features</em>, <em>**kwargs</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/tinycss.html#make_parser"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#tinycss.make_parser" title="Permalink to this definition">¶</a></dt>
<dd><p>Make a parser object with the chosen features.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
<li><strong>features</strong> – Positional arguments are base classes the new parser class will extend.
The string <code class="docutils literal"><span class="pre">'page3'</span></code> is accepted as short for
<a class="reference internal" href="css3.html#tinycss.page3.CSSPage3Parser" title="tinycss.page3.CSSPage3Parser"><code class="xref py py-class docutils literal"><span class="pre">CSSPage3Parser</span></code></a>.
The string <code class="docutils literal"><span class="pre">'fonts3'</span></code> is accepted as short for
<a class="reference internal" href="css3.html#tinycss.fonts3.CSSFonts3Parser" title="tinycss.fonts3.CSSFonts3Parser"><code class="xref py py-class docutils literal"><span class="pre">CSSFonts3Parser</span></code></a>.</li>
<li><strong>kwargs</strong> – Keyword arguments are passed to the parser’s constructor.</li>
</ul>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last">An instance of a new subclass of <code class="xref py py-class docutils literal"><span class="pre">CSS21Parser</span></code></p>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<span class="target" id="module-tinycss.css21"></span><div class="section" id="parsing-a-stylesheet">
<span id="parsing"></span><h3>Parsing a stylesheet<a class="headerlink" href="#parsing-a-stylesheet" title="Permalink to this headline">¶</a></h3>
<p>Parser classes have three different methods to parse CSS stylesheet,
depending on whether you have a file, a byte string, or an Unicode string.</p>
<dl class="class">
<dt id="tinycss.css21.CSS21Parser">
<em class="property">class </em><code class="descclassname">tinycss.css21.</code><code class="descname">CSS21Parser</code><a class="reference internal" href="_modules/tinycss/css21.html#CSS21Parser"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#tinycss.css21.CSS21Parser" title="Permalink to this definition">¶</a></dt>
<dd><p>Parser for CSS 2.1</p>
<p>This parser supports the core CSS syntax as well as @import, @media,
@page and !important.</p>
<p>Note that property values are still not parsed, as UAs using this
parser may only support some properties or some values.</p>
<p>Currently the parser holds no state. It being a class only allows
subclassing and overriding its methods.</p>
<dl class="method">
<dt id="tinycss.css21.CSS21Parser.parse_stylesheet">
<code class="descname">parse_stylesheet</code><span class="sig-paren">(</span><em>css_unicode</em>, <em>encoding=None</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/tinycss/css21.html#CSS21Parser.parse_stylesheet"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#tinycss.css21.CSS21Parser.parse_stylesheet" title="Permalink to this definition">¶</a></dt>
<dd><p>Parse a stylesheet from an Unicode string.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
<li><strong>css_unicode</strong> – A CSS stylesheet as an unicode string.</li>
<li><strong>encoding</strong> – The character encoding used to decode the stylesheet from bytes,
if any.</li>
</ul>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last">A <a class="reference internal" href="#tinycss.css21.Stylesheet" title="tinycss.css21.Stylesheet"><code class="xref py py-class docutils literal"><span class="pre">Stylesheet</span></code></a>.</p>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="method">
<dt id="tinycss.css21.CSS21Parser.parse_stylesheet_bytes">
<code class="descname">parse_stylesheet_bytes</code><span class="sig-paren">(</span><em>css_bytes</em>, <em>protocol_encoding=None</em>, <em>linking_encoding=None</em>, <em>document_encoding=None</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/tinycss/css21.html#CSS21Parser.parse_stylesheet_bytes"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#tinycss.css21.CSS21Parser.parse_stylesheet_bytes" title="Permalink to this definition">¶</a></dt>
<dd><p>Parse a stylesheet from a byte string.</p>
<p>The character encoding is determined from the passed metadata and the
<code class="docutils literal"><span class="pre">@charset</span></code> rule in the stylesheet (if any).
If no encoding information is available or decoding fails,
decoding defaults to UTF-8 and then fall back on ISO-8859-1.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
<li><strong>css_bytes</strong> – A CSS stylesheet as a byte string.</li>
<li><strong>protocol_encoding</strong> – The “charset” parameter of a “Content-Type” HTTP header (if any),
or similar metadata for other protocols.</li>
<li><strong>linking_encoding</strong> – <code class="docutils literal"><span class="pre"><link</span> <span class="pre">charset=""></span></code> or other metadata from the linking mechanism
(if any)</li>
<li><strong>document_encoding</strong> – Encoding of the referring style sheet or document (if any)</li>
</ul>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last">A <a class="reference internal" href="#tinycss.css21.Stylesheet" title="tinycss.css21.Stylesheet"><code class="xref py py-class docutils literal"><span class="pre">Stylesheet</span></code></a>.</p>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="method">
<dt id="tinycss.css21.CSS21Parser.parse_stylesheet_file">
<code class="descname">parse_stylesheet_file</code><span class="sig-paren">(</span><em>css_file</em>, <em>protocol_encoding=None</em>, <em>linking_encoding=None</em>, <em>document_encoding=None</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/tinycss/css21.html#CSS21Parser.parse_stylesheet_file"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#tinycss.css21.CSS21Parser.parse_stylesheet_file" title="Permalink to this definition">¶</a></dt>
<dd><p>Parse a stylesheet from a file or filename.</p>
<p>Character encoding-related parameters and behavior are the same
as in <a class="reference internal" href="#tinycss.css21.CSS21Parser.parse_stylesheet_bytes" title="tinycss.css21.CSS21Parser.parse_stylesheet_bytes"><code class="xref py py-meth docutils literal"><span class="pre">parse_stylesheet_bytes()</span></code></a>.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>css_file</strong> – Either a file (any object with a <code class="xref py py-meth docutils literal"><span class="pre">read()</span></code> method)
or a filename.</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body">A <a class="reference internal" href="#tinycss.css21.Stylesheet" title="tinycss.css21.Stylesheet"><code class="xref py py-class docutils literal"><span class="pre">Stylesheet</span></code></a>.</td>
</tr>
</tbody>
</table>
</dd></dl>
</dd></dl>
</div>
<div class="section" id="parsing-a-style-attribute">
<h3>Parsing a <code class="docutils literal"><span class="pre">style</span></code> attribute<a class="headerlink" href="#parsing-a-style-attribute" title="Permalink to this headline">¶</a></h3>
<dl class="method">
<dt id="tinycss.css21.CSS21Parser.parse_style_attr">
<code class="descclassname">CSS21Parser.</code><code class="descname">parse_style_attr</code><span class="sig-paren">(</span><em>css_source</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/tinycss/css21.html#CSS21Parser.parse_style_attr"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#tinycss.css21.CSS21Parser.parse_style_attr" title="Permalink to this definition">¶</a></dt>
<dd><p>Parse a “style” attribute (eg. of an HTML element).</p>
<p>This method only accepts Unicode as the source (HTML) document
is supposed to handle the character encoding.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>css_source</strong> – The attribute value, as an unicode string.</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body">A tuple of the list of valid <a class="reference internal" href="#tinycss.css21.Declaration" title="tinycss.css21.Declaration"><code class="xref py py-class docutils literal"><span class="pre">Declaration</span></code></a> and
a list of <a class="reference internal" href="#tinycss.parsing.ParseError" title="tinycss.parsing.ParseError"><code class="xref py py-class docutils literal"><span class="pre">ParseError</span></code></a>.</td>
</tr>
</tbody>
</table>
</dd></dl>
</div>
</div>
<div class="section" id="parsed-objects">
<h2>Parsed objects<a class="headerlink" href="#parsed-objects" title="Permalink to this headline">¶</a></h2>
<p>These data structures make up the results of the various parsing methods.</p>
<dl class="class">
<dt id="tinycss.parsing.ParseError">
<em class="property">class </em><code class="descclassname">tinycss.parsing.</code><code class="descname">ParseError</code><a class="reference internal" href="_modules/tinycss/parsing.html#ParseError"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#tinycss.parsing.ParseError" title="Permalink to this definition">¶</a></dt>
<dd><p>Details about a CSS syntax error. Usually indicates that something
(a rule or a declaration) was ignored and will not appear as a parsed
object.</p>
<p>This exception is typically logged in a list rather than being propagated
to the user API.</p>
<dl class="attribute">
<dt id="tinycss.css21.ParseError.line">
<code class="descname">line</code><a class="headerlink" href="#tinycss.css21.ParseError.line" title="Permalink to this definition">¶</a></dt>
<dd><p>Source line where the error occured.</p>
</dd></dl>
<dl class="attribute">
<dt id="tinycss.css21.ParseError.column">
<code class="descname">column</code><a class="headerlink" href="#tinycss.css21.ParseError.column" title="Permalink to this definition">¶</a></dt>
<dd><p>Column in the source line where the error occured.</p>
</dd></dl>
<dl class="attribute">
<dt id="tinycss.css21.ParseError.reason">
<code class="descname">reason</code><a class="headerlink" href="#tinycss.css21.ParseError.reason" title="Permalink to this definition">¶</a></dt>
<dd><p>What happend (a string).</p>
</dd></dl>
</dd></dl>
<dl class="class">
<dt id="tinycss.css21.Stylesheet">
<em class="property">class </em><code class="descclassname">tinycss.css21.</code><code class="descname">Stylesheet</code><a class="reference internal" href="_modules/tinycss/css21.html#Stylesheet"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#tinycss.css21.Stylesheet" title="Permalink to this definition">¶</a></dt>
<dd><p>A parsed CSS stylesheet.</p>
<dl class="attribute">
<dt id="tinycss.css21.Stylesheet.rules">
<code class="descname">rules</code><a class="headerlink" href="#tinycss.css21.Stylesheet.rules" title="Permalink to this definition">¶</a></dt>
<dd><p>A mixed list, in source order, of <a class="reference internal" href="#tinycss.css21.RuleSet" title="tinycss.css21.RuleSet"><code class="xref py py-class docutils literal"><span class="pre">RuleSet</span></code></a> and various
at-rules such as <a class="reference internal" href="#tinycss.css21.ImportRule" title="tinycss.css21.ImportRule"><code class="xref py py-class docutils literal"><span class="pre">ImportRule</span></code></a>, <a class="reference internal" href="#tinycss.css21.MediaRule" title="tinycss.css21.MediaRule"><code class="xref py py-class docutils literal"><span class="pre">MediaRule</span></code></a>
and <a class="reference internal" href="#tinycss.css21.PageRule" title="tinycss.css21.PageRule"><code class="xref py py-class docutils literal"><span class="pre">PageRule</span></code></a>.
Use their <code class="xref py py-obj docutils literal"><span class="pre">at_keyword</span></code> attribute to distinguish them.</p>
</dd></dl>
<dl class="attribute">
<dt id="tinycss.css21.Stylesheet.errors">
<code class="descname">errors</code><a class="headerlink" href="#tinycss.css21.Stylesheet.errors" title="Permalink to this definition">¶</a></dt>
<dd><p>A list of <a class="reference internal" href="#tinycss.parsing.ParseError" title="tinycss.parsing.ParseError"><code class="xref py py-class docutils literal"><span class="pre">ParseError</span></code></a>. Invalid rules and declarations
are ignored, with the details logged in this list.</p>
</dd></dl>
<dl class="attribute">
<dt id="tinycss.css21.Stylesheet.encoding">
<code class="descname">encoding</code><a class="headerlink" href="#tinycss.css21.Stylesheet.encoding" title="Permalink to this definition">¶</a></dt>
<dd><p>The character encoding that was used to decode the stylesheet
from bytes, or <code class="docutils literal"><span class="pre">None</span></code> for Unicode stylesheets.</p>
</dd></dl>
</dd></dl>
<div class="admonition note">
<p class="first admonition-title">Note</p>
<p class="last">All subsequent objects have <code class="xref py py-obj docutils literal"><span class="pre">line</span></code> and <code class="xref py py-obj docutils literal"><span class="pre">column</span></code> attributes (not
repeated every time fore brevity) that indicate where in the CSS source
this object was read.</p>
</div>
<dl class="class">
<dt id="tinycss.css21.RuleSet">
<em class="property">class </em><code class="descclassname">tinycss.css21.</code><code class="descname">RuleSet</code><a class="reference internal" href="_modules/tinycss/css21.html#RuleSet"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#tinycss.css21.RuleSet" title="Permalink to this definition">¶</a></dt>
<dd><p>A ruleset.</p>
<dl class="attribute">
<dt id="tinycss.css21.RuleSet.at_keyword">
<code class="descname">at_keyword</code><a class="headerlink" href="#tinycss.css21.RuleSet.at_keyword" title="Permalink to this definition">¶</a></dt>
<dd><p>Always <code class="docutils literal"><span class="pre">None</span></code>. Helps to tell rulesets apart from at-rules.</p>
</dd></dl>
<dl class="attribute">
<dt id="tinycss.css21.RuleSet.selector">
<code class="descname">selector</code><a class="headerlink" href="#tinycss.css21.RuleSet.selector" title="Permalink to this definition">¶</a></dt>
<dd><p>The selector as a <a class="reference internal" href="#tinycss.token_data.TokenList" title="tinycss.token_data.TokenList"><code class="xref py py-class docutils literal"><span class="pre">TokenList</span></code></a>.
In CSS 3, this is actually called a selector group.</p>
<p><code class="docutils literal"><span class="pre">rule.selector.as_css()</span></code> gives the selector as a string.
This string can be used with <em>cssselect</em>, see <a class="reference internal" href="css3.html#selectors3"><span class="std std-ref">Selectors 3</span></a>.</p>
</dd></dl>
<dl class="attribute">
<dt id="tinycss.css21.RuleSet.declarations">
<code class="descname">declarations</code><a class="headerlink" href="#tinycss.css21.RuleSet.declarations" title="Permalink to this definition">¶</a></dt>
<dd><p>The list of <a class="reference internal" href="#tinycss.css21.Declaration" title="tinycss.css21.Declaration"><code class="xref py py-class docutils literal"><span class="pre">Declaration</span></code></a>, in source order.</p>
</dd></dl>
</dd></dl>
<dl class="class">
<dt id="tinycss.css21.ImportRule">
<em class="property">class </em><code class="descclassname">tinycss.css21.</code><code class="descname">ImportRule</code><a class="reference internal" href="_modules/tinycss/css21.html#ImportRule"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#tinycss.css21.ImportRule" title="Permalink to this definition">¶</a></dt>
<dd><p>A parsed @import rule.</p>
<dl class="attribute">
<dt id="tinycss.css21.ImportRule.at_keyword">
<code class="descname">at_keyword</code><a class="headerlink" href="#tinycss.css21.ImportRule.at_keyword" title="Permalink to this definition">¶</a></dt>
<dd><p>Always <code class="docutils literal"><span class="pre">'@import'</span></code></p>
</dd></dl>
<dl class="attribute">
<dt id="tinycss.css21.ImportRule.uri">
<code class="descname">uri</code><a class="headerlink" href="#tinycss.css21.ImportRule.uri" title="Permalink to this definition">¶</a></dt>
<dd><p>The URI to be imported, as read from the stylesheet.
(URIs are not made absolute.)</p>
</dd></dl>
<dl class="attribute">
<dt id="tinycss.css21.ImportRule.media">
<code class="descname">media</code><a class="headerlink" href="#tinycss.css21.ImportRule.media" title="Permalink to this definition">¶</a></dt>
<dd><p>For CSS 2.1 without media queries: the media types
as a list of strings.
This attribute is explicitly <code class="docutils literal"><span class="pre">['all']</span></code> if the media was omitted
in the source.</p>
</dd></dl>
</dd></dl>
<dl class="class">
<dt id="tinycss.css21.MediaRule">
<em class="property">class </em><code class="descclassname">tinycss.css21.</code><code class="descname">MediaRule</code><a class="reference internal" href="_modules/tinycss/css21.html#MediaRule"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#tinycss.css21.MediaRule" title="Permalink to this definition">¶</a></dt>
<dd><p>A parsed @media rule.</p>
<dl class="attribute">
<dt id="tinycss.css21.MediaRule.at_keyword">
<code class="descname">at_keyword</code><a class="headerlink" href="#tinycss.css21.MediaRule.at_keyword" title="Permalink to this definition">¶</a></dt>
<dd><p>Always <code class="docutils literal"><span class="pre">'@media'</span></code></p>
</dd></dl>
<dl class="attribute">
<dt id="tinycss.css21.MediaRule.media">
<code class="descname">media</code><a class="headerlink" href="#tinycss.css21.MediaRule.media" title="Permalink to this definition">¶</a></dt>
<dd><p>For CSS 2.1 without media queries: the media types
as a list of strings.</p>
</dd></dl>
<dl class="attribute">
<dt id="tinycss.css21.MediaRule.rules">
<code class="descname">rules</code><a class="headerlink" href="#tinycss.css21.MediaRule.rules" title="Permalink to this definition">¶</a></dt>
<dd><p>The list <a class="reference internal" href="#tinycss.css21.RuleSet" title="tinycss.css21.RuleSet"><code class="xref py py-class docutils literal"><span class="pre">RuleSet</span></code></a> and various at-rules inside the @media
block, in source order.</p>
</dd></dl>
</dd></dl>
<dl class="class">
<dt id="tinycss.css21.PageRule">
<em class="property">class </em><code class="descclassname">tinycss.css21.</code><code class="descname">PageRule</code><a class="reference internal" href="_modules/tinycss/css21.html#PageRule"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#tinycss.css21.PageRule" title="Permalink to this definition">¶</a></dt>
<dd><p>A parsed CSS 2.1 @page rule.</p>
<dl class="attribute">
<dt id="tinycss.css21.PageRule.at_keyword">
<code class="descname">at_keyword</code><a class="headerlink" href="#tinycss.css21.PageRule.at_keyword" title="Permalink to this definition">¶</a></dt>
<dd><p>Always <code class="docutils literal"><span class="pre">'@page'</span></code></p>
</dd></dl>
<dl class="attribute">
<dt id="tinycss.css21.PageRule.selector">
<code class="descname">selector</code><a class="headerlink" href="#tinycss.css21.PageRule.selector" title="Permalink to this definition">¶</a></dt>
<dd><p>The page selector.
In CSS 2.1 this is either <code class="docutils literal"><span class="pre">None</span></code> (no selector), or the string
<code class="docutils literal"><span class="pre">'first'</span></code>, <code class="docutils literal"><span class="pre">'left'</span></code> or <code class="docutils literal"><span class="pre">'right'</span></code> for the pseudo class
of the same name.</p>
</dd></dl>
<dl class="attribute">
<dt id="tinycss.css21.PageRule.specificity">
<code class="descname">specificity</code><a class="headerlink" href="#tinycss.css21.PageRule.specificity" title="Permalink to this definition">¶</a></dt>
<dd><p>Specificity of the page selector. This is a tuple of four integers,
but these tuples are mostly meant to be compared to each other.</p>
</dd></dl>
<dl class="attribute">
<dt id="tinycss.css21.PageRule.declarations">
<code class="descname">declarations</code><a class="headerlink" href="#tinycss.css21.PageRule.declarations" title="Permalink to this definition">¶</a></dt>
<dd><p>A list of <a class="reference internal" href="#tinycss.css21.Declaration" title="tinycss.css21.Declaration"><code class="xref py py-class docutils literal"><span class="pre">Declaration</span></code></a>, in source order.</p>
</dd></dl>
<dl class="attribute">
<dt id="tinycss.css21.PageRule.at_rules">
<code class="descname">at_rules</code><a class="headerlink" href="#tinycss.css21.PageRule.at_rules" title="Permalink to this definition">¶</a></dt>
<dd><p>The list of parsed at-rules inside the @page block, in source order.
Always empty for CSS 2.1.</p>
</dd></dl>
</dd></dl>
<dl class="class">
<dt id="tinycss.css21.Declaration">
<em class="property">class </em><code class="descclassname">tinycss.css21.</code><code class="descname">Declaration</code><a class="reference internal" href="_modules/tinycss/css21.html#Declaration"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#tinycss.css21.Declaration" title="Permalink to this definition">¶</a></dt>
<dd><p>A property declaration.</p>
<dl class="attribute">
<dt id="tinycss.css21.Declaration.name">
<code class="descname">name</code><a class="headerlink" href="#tinycss.css21.Declaration.name" title="Permalink to this definition">¶</a></dt>
<dd><p>The property name as a normalized (lower-case) string.</p>
</dd></dl>
<dl class="attribute">
<dt id="tinycss.css21.Declaration.value">
<code class="descname">value</code><a class="headerlink" href="#tinycss.css21.Declaration.value" title="Permalink to this definition">¶</a></dt>
<dd><p>The property value as a <a class="reference internal" href="#tinycss.token_data.TokenList" title="tinycss.token_data.TokenList"><code class="xref py py-class docutils literal"><span class="pre">TokenList</span></code></a>.</p>
<p>The value is not parsed. UAs using tinycss may only support
some properties or some values and tinycss does not know which.
They need to parse values themselves and ignore declarations with
unknown or unsupported properties or values, and fall back
on any previous declaration.</p>
<p><a class="reference internal" href="css3.html#module-tinycss.color3" title="tinycss.color3"><code class="xref py py-mod docutils literal"><span class="pre">tinycss.color3</span></code></a> parses color values, but other values
will need specific parsing/validation code.</p>
</dd></dl>
<dl class="attribute">
<dt id="tinycss.css21.Declaration.priority">
<code class="descname">priority</code><a class="headerlink" href="#tinycss.css21.Declaration.priority" title="Permalink to this definition">¶</a></dt>
<dd><p>Either the string <code class="docutils literal"><span class="pre">'important'</span></code> or <code class="docutils literal"><span class="pre">None</span></code>.</p>
</dd></dl>
</dd></dl>
</div>
<div class="section" id="tokens">
<h2>Tokens<a class="headerlink" href="#tokens" title="Permalink to this headline">¶</a></h2>
<p>Some parts of a stylesheet (such as selectors in CSS 2.1 or property values)
are not parsed by tinycss. They appear as tokens instead.</p>
<span class="target" id="module-tinycss.token_data"></span><dl class="class">
<dt id="tinycss.token_data.TokenList">
<em class="property">class </em><code class="descclassname">tinycss.token_data.</code><code class="descname">TokenList</code><a class="reference internal" href="_modules/tinycss/token_data.html#TokenList"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#tinycss.token_data.TokenList" title="Permalink to this definition">¶</a></dt>
<dd><p>A mixed list of <a class="reference internal" href="#tinycss.token_data.Token" title="tinycss.token_data.Token"><code class="xref py py-class docutils literal"><span class="pre">Token</span></code></a> and
<a class="reference internal" href="#tinycss.token_data.ContainerToken" title="tinycss.token_data.ContainerToken"><code class="xref py py-class docutils literal"><span class="pre">ContainerToken</span></code></a> objects.</p>
<p>This is a subclass of the builtin <code class="xref py py-class docutils literal"><span class="pre">list</span></code> type.
It can be iterated, indexed and sliced as usual, but also has some
additional API:</p>
<dl class="attribute">
<dt id="tinycss.token_data.TokenList.line">
<code class="descname">line</code><a class="headerlink" href="#tinycss.token_data.TokenList.line" title="Permalink to this definition">¶</a></dt>
<dd><p>The line number in the CSS source of the first token.</p>
</dd></dl>
<dl class="attribute">
<dt id="tinycss.token_data.TokenList.column">
<code class="descname">column</code><a class="headerlink" href="#tinycss.token_data.TokenList.column" title="Permalink to this definition">¶</a></dt>
<dd><p>The column number (inside a source line) of the first token.</p>
</dd></dl>
<dl class="method">
<dt id="tinycss.token_data.TokenList.as_css">
<code class="descname">as_css</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="_modules/tinycss/token_data.html#TokenList.as_css"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#tinycss.token_data.TokenList.as_css" title="Permalink to this definition">¶</a></dt>
<dd><p>Return as an Unicode string the CSS representation of the tokens,
as parsed in the source.</p>
</dd></dl>
</dd></dl>
<dl class="class">
<dt id="tinycss.token_data.Token">
<em class="property">class </em><code class="descclassname">tinycss.token_data.</code><code class="descname">Token</code><a class="reference internal" href="_modules/tinycss/token_data.html#Token"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#tinycss.token_data.Token" title="Permalink to this definition">¶</a></dt>
<dd><p>A single atomic token.</p>
<dl class="attribute">
<dt id="tinycss.token_data.Token.is_container">
<code class="descname">is_container</code><a class="headerlink" href="#tinycss.token_data.Token.is_container" title="Permalink to this definition">¶</a></dt>
<dd><p>Always <code class="docutils literal"><span class="pre">False</span></code>.
Helps to tell <a class="reference internal" href="#tinycss.token_data.Token" title="tinycss.token_data.Token"><code class="xref py py-class docutils literal"><span class="pre">Token</span></code></a> apart from <a class="reference internal" href="#tinycss.token_data.ContainerToken" title="tinycss.token_data.ContainerToken"><code class="xref py py-class docutils literal"><span class="pre">ContainerToken</span></code></a>.</p>
</dd></dl>
<dl class="attribute">
<dt id="tinycss.token_data.Token.type">
<code class="descname">type</code><a class="headerlink" href="#tinycss.token_data.Token.type" title="Permalink to this definition">¶</a></dt>
<dd><p>The type of token as a string:</p>
<dl class="docutils">
<dt><code class="docutils literal"><span class="pre">S</span></code></dt>
<dd>A sequence of white space</dd>
<dt><code class="docutils literal"><span class="pre">IDENT</span></code></dt>
<dd>An identifier: a name that does not start with a digit.
A name is a sequence of letters, digits, <code class="docutils literal"><span class="pre">_</span></code>, <code class="docutils literal"><span class="pre">-</span></code>, escaped
characters and non-ASCII characters. Eg: <code class="docutils literal"><span class="pre">margin-left</span></code></dd>
<dt><code class="docutils literal"><span class="pre">HASH</span></code></dt>
<dd><code class="docutils literal"><span class="pre">#</span></code> followed immediately by a name. Eg: <code class="docutils literal"><span class="pre">#ff8800</span></code></dd>
<dt><code class="docutils literal"><span class="pre">ATKEYWORD</span></code></dt>
<dd><code class="docutils literal"><span class="pre">@</span></code> followed immediately by an identifier. Eg: <code class="docutils literal"><span class="pre">@page</span></code></dd>
<dt><code class="docutils literal"><span class="pre">URI</span></code></dt>
<dd>Eg: <code class="docutils literal"><span class="pre">url(foo)</span></code> The content may or may not be quoted.</dd>
<dt><code class="docutils literal"><span class="pre">UNICODE-RANGE</span></code></dt>
<dd><code class="docutils literal"><span class="pre">U+</span></code> followed by one or two hexadecimal
Unicode codepoints. Eg: <code class="docutils literal"><span class="pre">U+20-00FF</span></code></dd>
<dt><code class="docutils literal"><span class="pre">INTEGER</span></code></dt>
<dd>An integer with an optional <code class="docutils literal"><span class="pre">+</span></code> or <code class="docutils literal"><span class="pre">-</span></code> sign</dd>
<dt><code class="docutils literal"><span class="pre">NUMBER</span></code></dt>
<dd>A non-integer number with an optional <code class="docutils literal"><span class="pre">+</span></code> or <code class="docutils literal"><span class="pre">-</span></code> sign</dd>
<dt><code class="docutils literal"><span class="pre">DIMENSION</span></code></dt>
<dd>An integer or number followed immediately by an
identifier (the unit). Eg: <code class="docutils literal"><span class="pre">12px</span></code></dd>
<dt><code class="docutils literal"><span class="pre">PERCENTAGE</span></code></dt>
<dd>An integer or number followed immediately by <code class="docutils literal"><span class="pre">%</span></code></dd>
<dt><code class="docutils literal"><span class="pre">STRING</span></code></dt>
<dd>A string, quoted with <code class="docutils literal"><span class="pre">"</span></code> or <code class="docutils literal"><span class="pre">'</span></code></dd>
<dt><code class="docutils literal"><span class="pre">:</span></code> or <code class="docutils literal"><span class="pre">;</span></code></dt>
<dd>That character.</dd>
<dt><code class="docutils literal"><span class="pre">DELIM</span></code></dt>
<dd>A single character not matched in another token. Eg: <code class="docutils literal"><span class="pre">,</span></code></dd>
</dl>
<p>See the source of the <a class="reference internal" href="#module-tinycss.token_data" title="tinycss.token_data"><code class="xref py py-mod docutils literal"><span class="pre">token_data</span></code></a> module for the precise
regular expressions that match various tokens.</p>
<p>Note that other token types exist in the early tokenization steps,
but these are ignored, are syntax errors, or are later transformed
into <a class="reference internal" href="#tinycss.token_data.ContainerToken" title="tinycss.token_data.ContainerToken"><code class="xref py py-class docutils literal"><span class="pre">ContainerToken</span></code></a> or <a class="reference internal" href="#tinycss.token_data.FunctionToken" title="tinycss.token_data.FunctionToken"><code class="xref py py-class docutils literal"><span class="pre">FunctionToken</span></code></a>.</p>
</dd></dl>
<dl class="attribute">
<dt id="tinycss.token_data.Token.value">
<code class="descname">value</code><a class="headerlink" href="#tinycss.token_data.Token.value" title="Permalink to this definition">¶</a></dt>
<dd><p>The parsed value:</p>
<ul class="simple">
<li>INTEGER, NUMBER, PERCENTAGE or DIMENSION tokens: the numeric value
as an int or float.</li>
<li>STRING tokens: the unescaped string without quotes</li>
<li>URI tokens: the unescaped URI without quotes or
<code class="docutils literal"><span class="pre">url(</span></code> and <code class="docutils literal"><span class="pre">)</span></code> markers.</li>
<li>IDENT, ATKEYWORD or HASH tokens: the unescaped token,
with <code class="docutils literal"><span class="pre">@</span></code> or <code class="docutils literal"><span class="pre">#</span></code> markers left as-is</li>
<li>Other tokens: same as <a class="reference internal" href="#tinycss.token_data.Token.as_css" title="tinycss.token_data.Token.as_css"><code class="xref py py-attr docutils literal"><span class="pre">as_css</span></code></a></li>
</ul>
<p><em>Unescaped</em> refers to the various escaping methods based on the
backslash <code class="docutils literal"><span class="pre">\</span></code> character in CSS syntax.</p>
</dd></dl>
<dl class="attribute">
<dt id="tinycss.token_data.Token.unit">
<code class="descname">unit</code><a class="headerlink" href="#tinycss.token_data.Token.unit" title="Permalink to this definition">¶</a></dt>
<dd><ul class="simple">
<li>DIMENSION tokens: the normalized (unescaped, lower-case)
unit name as a string. eg. <code class="docutils literal"><span class="pre">'px'</span></code></li>
<li>PERCENTAGE tokens: the string <code class="docutils literal"><span class="pre">'%'</span></code></li>
<li>Other tokens: <code class="docutils literal"><span class="pre">None</span></code></li>
</ul>
</dd></dl>
<dl class="attribute">
<dt id="tinycss.token_data.Token.line">
<code class="descname">line</code><a class="headerlink" href="#tinycss.token_data.Token.line" title="Permalink to this definition">¶</a></dt>
<dd><p>The line number in the CSS source of the start of this token.</p>
</dd></dl>
<dl class="attribute">
<dt id="tinycss.token_data.Token.column">
<code class="descname">column</code><a class="headerlink" href="#tinycss.token_data.Token.column" title="Permalink to this definition">¶</a></dt>
<dd><p>The column number (inside a source line) of the start of this token.</p>
</dd></dl>
<dl class="method">
<dt id="tinycss.token_data.Token.as_css">
<code class="descname">as_css</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="_modules/tinycss/token_data.html#Token.as_css"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#tinycss.token_data.Token.as_css" title="Permalink to this definition">¶</a></dt>
<dd><p>Return as an Unicode string the CSS representation of the token,
as parsed in the source.</p>
</dd></dl>
</dd></dl>
<dl class="class">
<dt id="tinycss.token_data.ContainerToken">
<em class="property">class </em><code class="descclassname">tinycss.token_data.</code><code class="descname">ContainerToken</code><a class="reference internal" href="_modules/tinycss/token_data.html#ContainerToken"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#tinycss.token_data.ContainerToken" title="Permalink to this definition">¶</a></dt>
<dd><p>A token that contains other (nested) tokens.</p>
<dl class="attribute">
<dt id="tinycss.token_data.ContainerToken.is_container">
<code class="descname">is_container</code><a class="headerlink" href="#tinycss.token_data.ContainerToken.is_container" title="Permalink to this definition">¶</a></dt>
<dd><p>Always <code class="docutils literal"><span class="pre">True</span></code>.
Helps to tell <a class="reference internal" href="#tinycss.token_data.ContainerToken" title="tinycss.token_data.ContainerToken"><code class="xref py py-class docutils literal"><span class="pre">ContainerToken</span></code></a> apart from <a class="reference internal" href="#tinycss.token_data.Token" title="tinycss.token_data.Token"><code class="xref py py-class docutils literal"><span class="pre">Token</span></code></a>.</p>
</dd></dl>
<dl class="attribute">
<dt id="tinycss.token_data.ContainerToken.type">
<code class="descname">type</code><a class="headerlink" href="#tinycss.token_data.ContainerToken.type" title="Permalink to this definition">¶</a></dt>
<dd><p>The type of token as a string. One of <code class="docutils literal"><span class="pre">{</span></code>, <code class="docutils literal"><span class="pre">(</span></code>, <code class="docutils literal"><span class="pre">[</span></code> or
<code class="docutils literal"><span class="pre">FUNCTION</span></code>. For <code class="docutils literal"><span class="pre">FUNCTION</span></code>, the object is actually a
<a class="reference internal" href="#tinycss.token_data.FunctionToken" title="tinycss.token_data.FunctionToken"><code class="xref py py-class docutils literal"><span class="pre">FunctionToken</span></code></a>.</p>
</dd></dl>
<dl class="attribute">
<dt id="tinycss.token_data.ContainerToken.unit">
<code class="descname">unit</code><a class="headerlink" href="#tinycss.token_data.ContainerToken.unit" title="Permalink to this definition">¶</a></dt>
<dd><p>Always <code class="docutils literal"><span class="pre">None</span></code>. Included to make <a class="reference internal" href="#tinycss.token_data.ContainerToken" title="tinycss.token_data.ContainerToken"><code class="xref py py-class docutils literal"><span class="pre">ContainerToken</span></code></a> behave
more like <a class="reference internal" href="#tinycss.token_data.Token" title="tinycss.token_data.Token"><code class="xref py py-class docutils literal"><span class="pre">Token</span></code></a>.</p>
</dd></dl>
<dl class="attribute">
<dt id="tinycss.token_data.ContainerToken.content">
<code class="descname">content</code><a class="headerlink" href="#tinycss.token_data.ContainerToken.content" title="Permalink to this definition">¶</a></dt>
<dd><p>A list of <a class="reference internal" href="#tinycss.token_data.Token" title="tinycss.token_data.Token"><code class="xref py py-class docutils literal"><span class="pre">Token</span></code></a> or nested <a class="reference internal" href="#tinycss.token_data.ContainerToken" title="tinycss.token_data.ContainerToken"><code class="xref py py-class docutils literal"><span class="pre">ContainerToken</span></code></a>,
not including the opening or closing token.</p>
</dd></dl>
<dl class="attribute">
<dt id="tinycss.token_data.ContainerToken.line">
<code class="descname">line</code><a class="headerlink" href="#tinycss.token_data.ContainerToken.line" title="Permalink to this definition">¶</a></dt>
<dd><p>The line number in the CSS source of the start of this token.</p>
</dd></dl>
<dl class="attribute">
<dt id="tinycss.token_data.ContainerToken.column">
<code class="descname">column</code><a class="headerlink" href="#tinycss.token_data.ContainerToken.column" title="Permalink to this definition">¶</a></dt>
<dd><p>The column number (inside a source line) of the start of this token.</p>
</dd></dl>
<dl class="method">
<dt id="tinycss.token_data.ContainerToken.as_css">
<code class="descname">as_css</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="_modules/tinycss/token_data.html#ContainerToken.as_css"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#tinycss.token_data.ContainerToken.as_css" title="Permalink to this definition">¶</a></dt>
<dd><p>Return as an Unicode string the CSS representation of the token,
as parsed in the source.</p>
</dd></dl>
</dd></dl>
<dl class="class">
<dt id="tinycss.token_data.FunctionToken">
<em class="property">class </em><code class="descclassname">tinycss.token_data.</code><code class="descname">FunctionToken</code><a class="reference internal" href="_modules/tinycss/token_data.html#FunctionToken"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#tinycss.token_data.FunctionToken" title="Permalink to this definition">¶</a></dt>
<dd><p>A specialized <a class="reference internal" href="#tinycss.token_data.ContainerToken" title="tinycss.token_data.ContainerToken"><code class="xref py py-class docutils literal"><span class="pre">ContainerToken</span></code></a> for a <code class="docutils literal"><span class="pre">FUNCTION</span></code> group.
Has an additional attribute:</p>
<dl class="attribute">
<dt id="tinycss.token_data.FunctionToken.function_name">
<code class="descname">function_name</code><a class="headerlink" href="#tinycss.token_data.FunctionToken.function_name" title="Permalink to this definition">¶</a></dt>
<dd><p>The unescaped name of the function, with the <code class="docutils literal"><span class="pre">(</span></code> marker removed.</p>
</dd></dl>
</dd></dl>
</div>
</div>
</div>
</div>
</div>
<div class="sphinxsidebar" role="navigation" aria-label="main navigation">
<div class="sphinxsidebarwrapper">
<h3><a href="index.html">Table Of Contents</a></h3>
<ul>
<li><a class="reference internal" href="#">Parsing with tinycss</a><ul>
<li><a class="reference internal" href="#quickstart">Quickstart</a></li>
<li><a class="reference internal" href="#parsers">Parsers</a><ul>
<li><a class="reference internal" href="#parsing-a-stylesheet">Parsing a stylesheet</a></li>
<li><a class="reference internal" href="#parsing-a-style-attribute">Parsing a <code class="docutils literal"><span class="pre">style</span></code> attribute</a></li>
</ul>
</li>
<li><a class="reference internal" href="#parsed-objects">Parsed objects</a></li>
<li><a class="reference internal" href="#tokens">Tokens</a></li>
</ul>
</li>
</ul>
<div class="relations">
<h3>Related Topics</h3>
<ul>
<li><a href="index.html">Documentation overview</a><ul>
<li>Previous: <a href="index.html" title="previous chapter">tinycss: CSS parser for Python</a></li>
<li>Next: <a href="css3.html" title="next chapter">CSS 3 Modules</a></li>
</ul></li>
</ul>
</div>
<div role="note" aria-label="source link">
<h3>This Page</h3>
<ul class="this-page-menu">
<li><a href="_sources/parsing.txt"
rel="nofollow">Show Source</a></li>
</ul>
</div>
<div id="searchbox" style="display: none" role="search">
<h3>Quick search</h3>
<form class="search" action="search.html" method="get">
<div><input type="text" name="q" /></div>
<div><input type="submit" value="Go" /></div>
<input type="hidden" name="check_keywords" value="yes" />
<input type="hidden" name="area" value="default" />
</form>
</div>
<script type="text/javascript">$('#searchbox').show(0);</script>
</div>
</div>
<div class="clearer"></div>
</div>
<div class="footer">
©2016, Simon Sapin.
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<a href="_sources/parsing.txt"
rel="nofollow">Page source</a>
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</body>
</html>
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