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<title>gdb.printing (Debugging with GDB)</title>
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Python-modules.html#Python-modules" rel="up" title="Python modules">
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<link href="gdb_002etypes.html#gdb_002etypes" rel="next" title="gdb.types">
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<a name="gdb_002eprinting"></a>
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<div class="header">
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<p>
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Next: <a href="gdb_002etypes.html#gdb_002etypes" accesskey="n" rel="next">gdb.types</a>, Up: <a href="Python-modules.html#Python-modules" accesskey="u" rel="up">Python modules</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p>
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</div>
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<hr>
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<a name="gdb_002eprinting-1"></a>
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<h4 class="subsubsection">23.2.4.1 gdb.printing</h4>
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<a name="index-gdb_002eprinting"></a>
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<p>This module provides a collection of utilities for working with
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pretty-printers.
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</p>
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<dl compact="compact">
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<dt><code>PrettyPrinter (<var>name</var>, <var>subprinters</var>=None)</code></dt>
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<dd><p>This class specifies the API that makes ‘<samp>info pretty-printer</samp>’,
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‘<samp>enable pretty-printer</samp>’ and ‘<samp>disable pretty-printer</samp>’ work.
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Pretty-printers should generally inherit from this class.
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</p>
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</dd>
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<dt><code>SubPrettyPrinter (<var>name</var>)</code></dt>
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<dd><p>For printers that handle multiple types, this class specifies the
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corresponding API for the subprinters.
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</p>
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</dd>
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<dt><code>RegexpCollectionPrettyPrinter (<var>name</var>)</code></dt>
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<dd><p>Utility class for handling multiple printers, all recognized via
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regular expressions.
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See <a href="Writing-a-Pretty_002dPrinter.html#Writing-a-Pretty_002dPrinter">Writing a Pretty-Printer</a>, for an example.
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</p>
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</dd>
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<dt><code>FlagEnumerationPrinter (<var>name</var>)</code></dt>
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<dd><p>A pretty-printer which handles printing of <code>enum</code> values. Unlike
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<small>GDB</small>’s built-in <code>enum</code> printing, this printer attempts to
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work properly when there is some overlap between the enumeration
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constants. The argument <var>name</var> is the name of the printer and
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also the name of the <code>enum</code> type to look up.
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</p>
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</dd>
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<dt><code>register_pretty_printer (<var>obj</var>, <var>printer</var>, <var>replace</var>=False)</code></dt>
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<dd><p>Register <var>printer</var> with the pretty-printer list of <var>obj</var>.
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If <var>replace</var> is <code>True</code> then any existing copy of the printer
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is replaced. Otherwise a <code>RuntimeError</code> exception is raised
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if a printer with the same name already exists.
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</p></dd>
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</dl>
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