128 lines
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128 lines
5.2 KiB
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<title>Pretty-Printer Commands - Debugging with GDB</title>
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<meta name="description" content="Debugging with GDB">
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<link title="Top" rel="start" href="index.html#Top">
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<link rel="up" href="Pretty-Printing.html#Pretty-Printing" title="Pretty Printing">
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<link rel="prev" href="Pretty_002dPrinter-Example.html#Pretty_002dPrinter-Example" title="Pretty-Printer Example">
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3 or
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any later version published by the Free Software Foundation; with the
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Free Documentation'', with the Front-Cover Texts being ``A GNU Manual,''
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<div class="node">
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<a name="Pretty-Printer-Commands"></a>
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<a name="Pretty_002dPrinter-Commands"></a>
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<p>
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Previous: <a rel="previous" accesskey="p" href="Pretty_002dPrinter-Example.html#Pretty_002dPrinter-Example">Pretty-Printer Example</a>,
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Up: <a rel="up" accesskey="u" href="Pretty-Printing.html#Pretty-Printing">Pretty Printing</a>
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<hr>
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</div>
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<h4 class="subsection">10.9.3 Pretty-Printer Commands</h4>
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<p><a name="index-pretty_002dprinter-commands-713"></a>
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<a name="index-info-pretty_002dprinter-714"></a>
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<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.
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This includes disabled pretty-printers, which are marked as such.
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<p><var>object-regexp</var> is a regular expression matching the objects
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whose pretty-printers to list.
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Objects can be <code>global</code>, the program space's file
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(see <a href="Progspaces-In-Python.html#Progspaces-In-Python">Progspaces In Python</a>),
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and the object files within that program space (see <a href="Objfiles-In-Python.html#Objfiles-In-Python">Objfiles In Python</a>).
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See <a href="Selecting-Pretty_002dPrinters.html#Selecting-Pretty_002dPrinters">Selecting Pretty-Printers</a>, for details on how <span class="sc">gdb</span>
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looks up a printer from these three objects.
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<p><var>name-regexp</var> is a regular expression matching the name of the printers
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to list.
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<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>.
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A disabled pretty-printer is not forgotten, it may be enabled again later.
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<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>.
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</dl>
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<p>Example:
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<p>Suppose we have three pretty-printers installed: one from library1.so
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named <code>foo</code> that prints objects of type <code>foo</code>, and
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another from library2.so named <code>bar</code> that prints two types of objects,
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<code>bar1</code> and <code>bar2</code>.
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<pre class="smallexample"> (gdb) info pretty-printer
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library1.so:
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foo
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library2.so:
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bar
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bar1
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bar2
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(gdb) info pretty-printer library2
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library2.so:
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bar
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bar1
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bar2
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(gdb) disable pretty-printer library1
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1 printer disabled
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2 of 3 printers enabled
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(gdb) info pretty-printer
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library1.so:
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foo [disabled]
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library2.so:
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bar
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bar1
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bar2
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(gdb) disable pretty-printer library2 bar;bar1
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1 printer disabled
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1 of 3 printers enabled
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(gdb) info pretty-printer library2
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library1.so:
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foo [disabled]
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library2.so:
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bar
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bar1 [disabled]
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bar2
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(gdb) disable pretty-printer library2 bar
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1 printer disabled
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0 of 3 printers enabled
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(gdb) info pretty-printer library2
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library1.so:
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foo [disabled]
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library2.so:
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bar [disabled]
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bar1 [disabled]
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bar2
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</pre>
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<p>Note that for <code>bar</code> the entire printer can be disabled,
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as can each individual subprinter.
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</body></html>
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