Server : Apache
System : Linux server1.cgrithy.com 3.10.0-1160.95.1.el7.x86_64 #1 SMP Mon Jul 24 13:59:37 UTC 2023 x86_64
User : nobody ( 99)
PHP Version : 8.1.23
Disable Function : NONE
Directory : /usr/share/doc/python-docs-2.7.5/html/c-api/
|
Server : Apache System : Linux server1.cgrithy.com 3.10.0-1160.95.1.el7.x86_64 #1 SMP Mon Jul 24 13:59:37 UTC 2023 x86_64 User : nobody ( 99) PHP Version : 8.1.23 Disable Function : NONE Directory : /usr/share/doc/python-docs-2.7.5/html/c-api/ |
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Codec registry and support functions — Python 2.7.5 documentation</title>
<link rel="stylesheet" href="../_static/default.css" type="text/css" />
<link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
<script type="text/javascript">
var DOCUMENTATION_OPTIONS = {
URL_ROOT: '../',
VERSION: '2.7.5',
COLLAPSE_INDEX: false,
FILE_SUFFIX: '.html',
HAS_SOURCE: true
};
</script>
<script type="text/javascript" src="../_static/jquery.js"></script>
<script type="text/javascript" src="../_static/underscore.js"></script>
<script type="text/javascript" src="../_static/doctools.js"></script>
<script type="text/javascript" src="../_static/sidebar.js"></script>
<link rel="search" type="application/opensearchdescription+xml"
title="Search within Python 2.7.5 documentation"
href="../_static/opensearch.xml"/>
<link rel="author" title="About these documents" href="../about.html" />
<link rel="copyright" title="Copyright" href="../copyright.html" />
<link rel="top" title="Python 2.7.5 documentation" href="../index.html" />
<link rel="up" title="Utilities" href="utilities.html" />
<link rel="next" title="Abstract Objects Layer" href="abstract.html" />
<link rel="prev" title="Reflection" href="reflection.html" />
<link rel="shortcut icon" type="image/png" href="../_static/py.png" />
<script type="text/javascript" src="../_static/copybutton.js"></script>
</head>
<body>
<div class="related">
<h3>Navigation</h3>
<ul>
<li class="right" style="margin-right: 10px">
<a href="../genindex.html" title="General Index"
accesskey="I">index</a></li>
<li class="right" >
<a href="../py-modindex.html" title="Python Module Index"
>modules</a> |</li>
<li class="right" >
<a href="abstract.html" title="Abstract Objects Layer"
accesskey="N">next</a> |</li>
<li class="right" >
<a href="reflection.html" title="Reflection"
accesskey="P">previous</a> |</li>
<li><img src="../_static/py.png" alt=""
style="vertical-align: middle; margin-top: -1px"/></li>
<li><a href="http://www.python.org/">Python</a> »</li>
<li>
<a href="../index.html">Python 2.7.5 documentation</a> »
</li>
<li><a href="index.html" >Python/C API Reference Manual</a> »</li>
<li><a href="utilities.html" accesskey="U">Utilities</a> »</li>
</ul>
</div>
<div class="document">
<div class="documentwrapper">
<div class="bodywrapper">
<div class="body">
<div class="section" id="codec-registry-and-support-functions">
<span id="codec-registry"></span><h1>Codec registry and support functions<a class="headerlink" href="#codec-registry-and-support-functions" title="Permalink to this headline">¶</a></h1>
<dl class="function">
<dt id="PyCodec_Register">
int <tt class="descname">PyCodec_Register</tt><big>(</big><a class="reference internal" href="structures.html#PyObject" title="PyObject">PyObject</a><em> *search_function</em><big>)</big><a class="headerlink" href="#PyCodec_Register" title="Permalink to this definition">¶</a></dt>
<dd><p>Register a new codec search function.</p>
<p>As side effect, this tries to load the <tt class="xref py py-mod docutils literal"><span class="pre">encodings</span></tt> package, if not yet
done, to make sure that it is always first in the list of search functions.</p>
</dd></dl>
<dl class="function">
<dt id="PyCodec_KnownEncoding">
int <tt class="descname">PyCodec_KnownEncoding</tt><big>(</big>const char<em> *encoding</em><big>)</big><a class="headerlink" href="#PyCodec_KnownEncoding" title="Permalink to this definition">¶</a></dt>
<dd><p>Return <tt class="docutils literal"><span class="pre">1</span></tt> or <tt class="docutils literal"><span class="pre">0</span></tt> depending on whether there is a registered codec for
the given <em>encoding</em>.</p>
</dd></dl>
<dl class="function">
<dt id="PyCodec_Encode">
<a class="reference internal" href="structures.html#PyObject" title="PyObject">PyObject</a>* <tt class="descname">PyCodec_Encode</tt><big>(</big><a class="reference internal" href="structures.html#PyObject" title="PyObject">PyObject</a><em> *object</em>, const char<em> *encoding</em>, const char<em> *errors</em><big>)</big><a class="headerlink" href="#PyCodec_Encode" title="Permalink to this definition">¶</a></dt>
<dd><p>Generic codec based encoding API.</p>
<p><em>object</em> is passed through the encoder function found for the given
<em>encoding</em> using the error handling method defined by <em>errors</em>. <em>errors</em> may
be <em>NULL</em> to use the default method defined for the codec. Raises a
<a class="reference internal" href="../library/exceptions.html#exceptions.LookupError" title="exceptions.LookupError"><tt class="xref py py-exc docutils literal"><span class="pre">LookupError</span></tt></a> if no encoder can be found.</p>
</dd></dl>
<dl class="function">
<dt id="PyCodec_Decode">
<a class="reference internal" href="structures.html#PyObject" title="PyObject">PyObject</a>* <tt class="descname">PyCodec_Decode</tt><big>(</big><a class="reference internal" href="structures.html#PyObject" title="PyObject">PyObject</a><em> *object</em>, const char<em> *encoding</em>, const char<em> *errors</em><big>)</big><a class="headerlink" href="#PyCodec_Decode" title="Permalink to this definition">¶</a></dt>
<dd><p>Generic codec based decoding API.</p>
<p><em>object</em> is passed through the decoder function found for the given
<em>encoding</em> using the error handling method defined by <em>errors</em>. <em>errors</em> may
be <em>NULL</em> to use the default method defined for the codec. Raises a
<a class="reference internal" href="../library/exceptions.html#exceptions.LookupError" title="exceptions.LookupError"><tt class="xref py py-exc docutils literal"><span class="pre">LookupError</span></tt></a> if no encoder can be found.</p>
</dd></dl>
<div class="section" id="codec-lookup-api">
<h2>Codec lookup API<a class="headerlink" href="#codec-lookup-api" title="Permalink to this headline">¶</a></h2>
<p>In the following functions, the <em>encoding</em> string is looked up converted to all
lower-case characters, which makes encodings looked up through this mechanism
effectively case-insensitive. If no codec is found, a <a class="reference internal" href="../library/exceptions.html#exceptions.KeyError" title="exceptions.KeyError"><tt class="xref py py-exc docutils literal"><span class="pre">KeyError</span></tt></a> is set
and <em>NULL</em> returned.</p>
<dl class="function">
<dt id="PyCodec_Encoder">
<a class="reference internal" href="structures.html#PyObject" title="PyObject">PyObject</a>* <tt class="descname">PyCodec_Encoder</tt><big>(</big>const char<em> *encoding</em><big>)</big><a class="headerlink" href="#PyCodec_Encoder" title="Permalink to this definition">¶</a></dt>
<dd><p>Get an encoder function for the given <em>encoding</em>.</p>
</dd></dl>
<dl class="function">
<dt id="PyCodec_Decoder">
<a class="reference internal" href="structures.html#PyObject" title="PyObject">PyObject</a>* <tt class="descname">PyCodec_Decoder</tt><big>(</big>const char<em> *encoding</em><big>)</big><a class="headerlink" href="#PyCodec_Decoder" title="Permalink to this definition">¶</a></dt>
<dd><p>Get a decoder function for the given <em>encoding</em>.</p>
</dd></dl>
<dl class="function">
<dt id="PyCodec_IncrementalEncoder">
<a class="reference internal" href="structures.html#PyObject" title="PyObject">PyObject</a>* <tt class="descname">PyCodec_IncrementalEncoder</tt><big>(</big>const char<em> *encoding</em>, const char<em> *errors</em><big>)</big><a class="headerlink" href="#PyCodec_IncrementalEncoder" title="Permalink to this definition">¶</a></dt>
<dd><p>Get an <tt class="xref py py-class docutils literal"><span class="pre">IncrementalEncoder</span></tt> object for the given <em>encoding</em>.</p>
</dd></dl>
<dl class="function">
<dt id="PyCodec_IncrementalDecoder">
<a class="reference internal" href="structures.html#PyObject" title="PyObject">PyObject</a>* <tt class="descname">PyCodec_IncrementalDecoder</tt><big>(</big>const char<em> *encoding</em>, const char<em> *errors</em><big>)</big><a class="headerlink" href="#PyCodec_IncrementalDecoder" title="Permalink to this definition">¶</a></dt>
<dd><p>Get an <tt class="xref py py-class docutils literal"><span class="pre">IncrementalDecoder</span></tt> object for the given <em>encoding</em>.</p>
</dd></dl>
<dl class="function">
<dt id="PyCodec_StreamReader">
<a class="reference internal" href="structures.html#PyObject" title="PyObject">PyObject</a>* <tt class="descname">PyCodec_StreamReader</tt><big>(</big>const char<em> *encoding</em>, <a class="reference internal" href="structures.html#PyObject" title="PyObject">PyObject</a><em> *stream</em>, const char<em> *errors</em><big>)</big><a class="headerlink" href="#PyCodec_StreamReader" title="Permalink to this definition">¶</a></dt>
<dd><p>Get a <tt class="xref py py-class docutils literal"><span class="pre">StreamReader</span></tt> factory function for the given <em>encoding</em>.</p>
</dd></dl>
<dl class="function">
<dt id="PyCodec_StreamWriter">
<a class="reference internal" href="structures.html#PyObject" title="PyObject">PyObject</a>* <tt class="descname">PyCodec_StreamWriter</tt><big>(</big>const char<em> *encoding</em>, <a class="reference internal" href="structures.html#PyObject" title="PyObject">PyObject</a><em> *stream</em>, const char<em> *errors</em><big>)</big><a class="headerlink" href="#PyCodec_StreamWriter" title="Permalink to this definition">¶</a></dt>
<dd><p>Get a <tt class="xref py py-class docutils literal"><span class="pre">StreamWriter</span></tt> factory function for the given <em>encoding</em>.</p>
</dd></dl>
</div>
<div class="section" id="registry-api-for-unicode-encoding-error-handlers">
<h2>Registry API for Unicode encoding error handlers<a class="headerlink" href="#registry-api-for-unicode-encoding-error-handlers" title="Permalink to this headline">¶</a></h2>
<dl class="function">
<dt id="PyCodec_RegisterError">
int <tt class="descname">PyCodec_RegisterError</tt><big>(</big>const char<em> *name</em>, <a class="reference internal" href="structures.html#PyObject" title="PyObject">PyObject</a><em> *error</em><big>)</big><a class="headerlink" href="#PyCodec_RegisterError" title="Permalink to this definition">¶</a></dt>
<dd><p>Register the error handling callback function <em>error</em> under the given <em>name</em>.
This callback function will be called by a codec when it encounters
unencodable characters/undecodable bytes and <em>name</em> is specified as the error
parameter in the call to the encode/decode function.</p>
<p>The callback gets a single argument, an instance of
<a class="reference internal" href="../library/exceptions.html#exceptions.UnicodeEncodeError" title="exceptions.UnicodeEncodeError"><tt class="xref py py-exc docutils literal"><span class="pre">UnicodeEncodeError</span></tt></a>, <a class="reference internal" href="../library/exceptions.html#exceptions.UnicodeDecodeError" title="exceptions.UnicodeDecodeError"><tt class="xref py py-exc docutils literal"><span class="pre">UnicodeDecodeError</span></tt></a> or
<a class="reference internal" href="../library/exceptions.html#exceptions.UnicodeTranslateError" title="exceptions.UnicodeTranslateError"><tt class="xref py py-exc docutils literal"><span class="pre">UnicodeTranslateError</span></tt></a> that holds information about the problematic
sequence of characters or bytes and their offset in the original string (see
<a class="reference internal" href="exceptions.html#unicodeexceptions"><em>Unicode Exception Objects</em></a> for functions to extract this information). The
callback must either raise the given exception, or return a two-item tuple
containing the replacement for the problematic sequence, and an integer
giving the offset in the original string at which encoding/decoding should be
resumed.</p>
<p>Return <tt class="docutils literal"><span class="pre">0</span></tt> on success, <tt class="docutils literal"><span class="pre">-1</span></tt> on error.</p>
</dd></dl>
<dl class="function">
<dt id="PyCodec_LookupError">
<a class="reference internal" href="structures.html#PyObject" title="PyObject">PyObject</a>* <tt class="descname">PyCodec_LookupError</tt><big>(</big>const char<em> *name</em><big>)</big><a class="headerlink" href="#PyCodec_LookupError" title="Permalink to this definition">¶</a></dt>
<dd><p>Lookup the error handling callback function registered under <em>name</em>. As a
special case <em>NULL</em> can be passed, in which case the error handling callback
for “strict” will be returned.</p>
</dd></dl>
<dl class="function">
<dt id="PyCodec_StrictErrors">
<a class="reference internal" href="structures.html#PyObject" title="PyObject">PyObject</a>* <tt class="descname">PyCodec_StrictErrors</tt><big>(</big><a class="reference internal" href="structures.html#PyObject" title="PyObject">PyObject</a><em> *exc</em><big>)</big><a class="headerlink" href="#PyCodec_StrictErrors" title="Permalink to this definition">¶</a></dt>
<dd><p>Raise <em>exc</em> as an exception.</p>
</dd></dl>
<dl class="function">
<dt id="PyCodec_IgnoreErrors">
<a class="reference internal" href="structures.html#PyObject" title="PyObject">PyObject</a>* <tt class="descname">PyCodec_IgnoreErrors</tt><big>(</big><a class="reference internal" href="structures.html#PyObject" title="PyObject">PyObject</a><em> *exc</em><big>)</big><a class="headerlink" href="#PyCodec_IgnoreErrors" title="Permalink to this definition">¶</a></dt>
<dd><p>Ignore the unicode error, skipping the faulty input.</p>
</dd></dl>
<dl class="function">
<dt id="PyCodec_ReplaceErrors">
<a class="reference internal" href="structures.html#PyObject" title="PyObject">PyObject</a>* <tt class="descname">PyCodec_ReplaceErrors</tt><big>(</big><a class="reference internal" href="structures.html#PyObject" title="PyObject">PyObject</a><em> *exc</em><big>)</big><a class="headerlink" href="#PyCodec_ReplaceErrors" title="Permalink to this definition">¶</a></dt>
<dd><p>Replace the unicode encode error with <tt class="docutils literal"><span class="pre">?</span></tt> or <tt class="docutils literal"><span class="pre">U+FFFD</span></tt>.</p>
</dd></dl>
<dl class="function">
<dt id="PyCodec_XMLCharRefReplaceErrors">
<a class="reference internal" href="structures.html#PyObject" title="PyObject">PyObject</a>* <tt class="descname">PyCodec_XMLCharRefReplaceErrors</tt><big>(</big><a class="reference internal" href="structures.html#PyObject" title="PyObject">PyObject</a><em> *exc</em><big>)</big><a class="headerlink" href="#PyCodec_XMLCharRefReplaceErrors" title="Permalink to this definition">¶</a></dt>
<dd><p>Replace the unicode encode error with XML character references.</p>
</dd></dl>
<dl class="function">
<dt id="PyCodec_BackslashReplaceErrors">
<a class="reference internal" href="structures.html#PyObject" title="PyObject">PyObject</a>* <tt class="descname">PyCodec_BackslashReplaceErrors</tt><big>(</big><a class="reference internal" href="structures.html#PyObject" title="PyObject">PyObject</a><em> *exc</em><big>)</big><a class="headerlink" href="#PyCodec_BackslashReplaceErrors" title="Permalink to this definition">¶</a></dt>
<dd><p>Replace the unicode encode error with backslash escapes (<tt class="docutils literal"><span class="pre">\x</span></tt>, <tt class="docutils literal"><span class="pre">\u</span></tt> and
<tt class="docutils literal"><span class="pre">\U</span></tt>).</p>
</dd></dl>
</div>
</div>
</div>
</div>
</div>
<div class="sphinxsidebar">
<div class="sphinxsidebarwrapper">
<h3><a href="../contents.html">Table Of Contents</a></h3>
<ul>
<li><a class="reference internal" href="#">Codec registry and support functions</a><ul>
<li><a class="reference internal" href="#codec-lookup-api">Codec lookup API</a></li>
<li><a class="reference internal" href="#registry-api-for-unicode-encoding-error-handlers">Registry API for Unicode encoding error handlers</a></li>
</ul>
</li>
</ul>
<h4>Previous topic</h4>
<p class="topless"><a href="reflection.html"
title="previous chapter">Reflection</a></p>
<h4>Next topic</h4>
<p class="topless"><a href="abstract.html"
title="next chapter">Abstract Objects Layer</a></p>
<h3>This Page</h3>
<ul class="this-page-menu">
<li><a href="../bugs.html">Report a Bug</a></li>
<li><a href="../_sources/c-api/codec.txt"
rel="nofollow">Show Source</a></li>
</ul>
<div id="searchbox" style="display: none">
<h3>Quick search</h3>
<form class="search" action="../search.html" method="get">
<input type="text" name="q" />
<input type="submit" value="Go" />
<input type="hidden" name="check_keywords" value="yes" />
<input type="hidden" name="area" value="default" />
</form>
<p class="searchtip" style="font-size: 90%">
Enter search terms or a module, class or function name.
</p>
</div>
<script type="text/javascript">$('#searchbox').show(0);</script>
</div>
</div>
<div class="clearer"></div>
</div>
<div class="related">
<h3>Navigation</h3>
<ul>
<li class="right" style="margin-right: 10px">
<a href="../genindex.html" title="General Index"
>index</a></li>
<li class="right" >
<a href="../py-modindex.html" title="Python Module Index"
>modules</a> |</li>
<li class="right" >
<a href="abstract.html" title="Abstract Objects Layer"
>next</a> |</li>
<li class="right" >
<a href="reflection.html" title="Reflection"
>previous</a> |</li>
<li><img src="../_static/py.png" alt=""
style="vertical-align: middle; margin-top: -1px"/></li>
<li><a href="http://www.python.org/">Python</a> »</li>
<li>
<a href="../index.html">Python 2.7.5 documentation</a> »
</li>
<li><a href="index.html" >Python/C API Reference Manual</a> »</li>
<li><a href="utilities.html" >Utilities</a> »</li>
</ul>
</div>
<div class="footer">
© <a href="../copyright.html">Copyright</a> 1990-2020, Python Software Foundation.
<br />
The Python Software Foundation is a non-profit corporation.
<a href="http://www.python.org/psf/donations/">Please donate.</a>
<br />
Last updated on Oct 13, 2020.
<a href="../bugs.html">Found a bug</a>?
<br />
Created using <a href="http://sphinx.pocoo.org/">Sphinx</a> 1.1.3.
</div>
</body>
</html>