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<h4 class="subsection">10.9.3 Pretty-Printer Commands</h4>

<p><a name="index-pretty_002dprinter-commands-713"></a>
     
<a name="index-info-pretty_002dprinter-714"></a>
<dl><dt><code>info pretty-printer [</code><var>object-regexp</var><code> [</code><var>name-regexp</var><code>]]</code><dd>Print the list of installed pretty-printers. 
This includes disabled pretty-printers, which are marked as such.

     <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'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 <span class="sc">gdb</span>
looks up a printer from these three objects.

     <p><var>name-regexp</var> is a regular expression matching the name of the printers
to list.

     <p><a name="index-disable-pretty_002dprinter-715"></a><br><dt><code>disable pretty-printer [</code><var>object-regexp</var><code> [</code><var>name-regexp</var><code>]]</code><dd>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-716"></a><br><dt><code>enable pretty-printer [</code><var>object-regexp</var><code> [</code><var>name-regexp</var><code>]]</code><dd>Enable pretty-printers matching <var>object-regexp</var> and <var>name-regexp</var>. 
</dl>

   <p>Example:

   <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>.

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

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