125 lines
5.2 KiB
HTML
125 lines
5.2 KiB
HTML
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<head>
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<title>Debugging with GDB: Editing</title>
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<meta name="description" content="Debugging with GDB: Editing">
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<link href="index.html#Top" rel="start" title="Top">
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<link href="Concept-Index.html#Concept-Index" rel="index" title="Concept Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Controlling-GDB.html#Controlling-GDB" rel="up" title="Controlling GDB">
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<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000">
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<a name="Editing"></a>
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<div class="header">
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<p>
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Next: <a href="Command-History.html#Command-History" accesskey="n" rel="next">Command History</a>, Previous: <a href="Prompt.html#Prompt" accesskey="p" rel="previous">Prompt</a>, Up: <a href="Controlling-GDB.html#Controlling-GDB" accesskey="u" rel="up">Controlling GDB</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="Command-Editing"></a>
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<h3 class="section">22.2 Command Editing</h3>
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<a name="index-readline"></a>
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<a name="index-command-line-editing"></a>
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<p><small>GDB</small> reads its input commands via the <em>Readline</em> interface. This
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<small>GNU</small> library provides consistent behavior for programs which provide a
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command line interface to the user. Advantages are <small>GNU</small> Emacs-style
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or <em>vi</em>-style inline editing of commands, <code>csh</code>-like history
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substitution, and a storage and recall of command history across
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debugging sessions.
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</p>
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<p>You may control the behavior of command line editing in <small>GDB</small> with the
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command <code>set</code>.
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</p>
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<dl compact="compact">
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<dd><a name="index-set-editing"></a>
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<a name="index-editing"></a>
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</dd>
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<dt><code>set editing</code></dt>
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<dt><code>set editing on</code></dt>
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<dd><p>Enable command line editing (enabled by default).
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</p>
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</dd>
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<dt><code>set editing off</code></dt>
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<dd><p>Disable command line editing.
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</p>
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<a name="index-show-editing"></a>
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</dd>
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<dt><code>show editing</code></dt>
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<dd><p>Show whether command line editing is enabled.
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</p></dd>
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</dl>
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<p>See <a href="Command-Line-Editing.html#Command-Line-Editing">Command Line Editing</a>,
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for more details about the Readline
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interface. Users unfamiliar with <small>GNU</small> Emacs or <code>vi</code> are
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encouraged to read that chapter.
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</p>
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<a name="index-Readline-application-name"></a>
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<p><small>GDB</small> sets the Readline application name to ‘<samp>gdb</samp>’. This
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is useful for conditions in <samp>.inputrc</samp>.
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</p>
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<a name="index-operate_002dand_002dget_002dnext"></a>
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<p><small>GDB</small> defines a bindable Readline command,
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<code>operate-and-get-next</code>. This is bound to <kbd>C-o</kbd> by default.
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This command accepts the current line for execution and fetches the
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next line relative to the current line from the history for editing.
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Any argument is ignored.
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</p>
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</body>
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</html>
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