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<a name="Pretty_002dPrinter-Commands"></a>
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<p>
Previous: <a href="Pretty_002dPrinter-Example.html#Pretty_002dPrinter-Example" accesskey="p" rel="prev">Pretty-Printer Example</a>, Up: <a href="Pretty-Printing.html#Pretty-Printing" accesskey="u" rel="up">Pretty Printing</a> &nbsp; [<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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<hr>
<a name="Pretty_002dPrinter-Commands-1"></a>
<h4 class="subsection">10.9.3 Pretty-Printer Commands</h4>
<a name="index-pretty_002dprinter-commands"></a>

<dl compact="compact">
<dd><a name="index-info-pretty_002dprinter"></a>
</dd>
<dt><code>info pretty-printer [<var>object-regexp</var> [<var>name-regexp</var>]]</code></dt>
<dd><p>Print the list of installed pretty-printers.
This includes disabled pretty-printers, which are marked as such.
</p>
<p><var>object-regexp</var> is a regular expression matching the objects
whose pretty-printers to list.
Objects can be <code>global</code>, the program space&rsquo;s file
(see <a href="Progspaces-In-Python.html#Progspaces-In-Python">Progspaces In Python</a>),
and the object files within that program space (see <a href="Objfiles-In-Python.html#Objfiles-In-Python">Objfiles In Python</a>).
See <a href="Selecting-Pretty_002dPrinters.html#Selecting-Pretty_002dPrinters">Selecting Pretty-Printers</a>, for details on how <small>GDB</small>
looks up a printer from these three objects.
</p>
<p><var>name-regexp</var> is a regular expression matching the name of the printers
to list.
</p>
<a name="index-disable-pretty_002dprinter"></a>
</dd>
<dt><code>disable pretty-printer [<var>object-regexp</var> [<var>name-regexp</var>]]</code></dt>
<dd><p>Disable pretty-printers matching <var>object-regexp</var> and <var>name-regexp</var>.
A disabled pretty-printer is not forgotten, it may be enabled again later.
</p>
<a name="index-enable-pretty_002dprinter"></a>
</dd>
<dt><code>enable pretty-printer [<var>object-regexp</var> [<var>name-regexp</var>]]</code></dt>
<dd><p>Enable pretty-printers matching <var>object-regexp</var> and <var>name-regexp</var>.
</p></dd>
</dl>

<p>Example:
</p>
<p>Suppose we have three pretty-printers installed: one from library1.so
named <code>foo</code> that prints objects of type <code>foo</code>, and
another from library2.so named <code>bar</code> that prints two types of objects,
<code>bar1</code> and <code>bar2</code>.
</p>
<div class="smallexample">
<pre class="smallexample">(gdb) info pretty-printer
library1.so:
  foo
library2.so:
  bar
    bar1
    bar2
(gdb) info pretty-printer library2
library2.so:
  bar
    bar1
    bar2
(gdb) disable pretty-printer library1
1 printer disabled
2 of 3 printers enabled
(gdb) info pretty-printer
library1.so:
  foo [disabled]
library2.so:
  bar
    bar1
    bar2
(gdb) disable pretty-printer library2 bar:bar1
1 printer disabled
1 of 3 printers enabled
(gdb) info pretty-printer library2
library1.so:
  foo [disabled]
library2.so:
  bar
    bar1 [disabled]
    bar2
(gdb) disable pretty-printer library2 bar
1 printer disabled
0 of 3 printers enabled
(gdb) info pretty-printer library2
library1.so:
  foo [disabled]
library2.so:
  bar [disabled]
    bar1 [disabled]
    bar2
</pre></div>

<p>Note that for <code>bar</code> the entire printer can be disabled,
as can each individual subprinter.
</p>
<hr>
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