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102 lines
4.6 KiB
HTML
102 lines
4.6 KiB
HTML
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<title>Numeric Arguments (Debugging with GDB)</title>
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<a name="Numeric-Arguments"></a>
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<p>
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Next: <a href="Commands-For-Completion.html#Commands-For-Completion" accesskey="n" rel="next">Commands For Completion</a>, Previous: <a href="Commands-For-Killing.html#Commands-For-Killing" accesskey="p" rel="prev">Commands For Killing</a>, Up: <a href="Bindable-Readline-Commands.html#Bindable-Readline-Commands" accesskey="u" rel="up">Bindable Readline Commands</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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<hr>
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<a name="Specifying-Numeric-Arguments"></a>
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<h4 class="subsection">32.4.5 Specifying Numeric Arguments</h4>
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<dl compact="compact">
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<dt><code>digit-argument (<kbd>M-0</kbd>, <kbd>M-1</kbd>, … <kbd>M--</kbd>)</code>
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<a name="index-digit_002dargument-_0028M_002d0_002c-M_002d1_002c-_2026-M_002d_002d_0029"></a>
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</dt>
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<dd><p>Add this digit to the argument already accumulating, or start a new
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argument. <kbd>M--</kbd> starts a negative argument.
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</p>
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</dd>
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<dt><code>universal-argument ()</code>
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<a name="index-universal_002dargument-_0028_0029"></a>
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</dt>
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<dd><p>This is another way to specify an argument.
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If this command is followed by one or more digits, optionally with a
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leading minus sign, those digits define the argument.
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If the command is followed by digits, executing <code>universal-argument</code>
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again ends the numeric argument, but is otherwise ignored.
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As a special case, if this command is immediately followed by a
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character that is neither a digit or minus sign, the argument count
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for the next command is multiplied by four.
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The argument count is initially one, so executing this function the
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first time makes the argument count four, a second time makes the
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argument count sixteen, and so on.
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By default, this is not bound to a key.
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</p></dd>
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