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102 lines
4.6 KiB
HTML
102 lines
4.6 KiB
HTML
4 years ago
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<!-- Copyright (C) 1988-2019 Free Software Foundation, Inc.
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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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Invariant Sections being "Free Software" and "Free Software Needs
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Free Documentation", with the Front-Cover Texts being "A GNU Manual,"
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and with the Back-Cover Texts as in (a) below.
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(a) The FSF's Back-Cover Text is: "You are free to copy and modify
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this GNU Manual. Buying copies from GNU Press supports the FSF in
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developing GNU and promoting software freedom." -->
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<!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>Numeric Arguments (Debugging with GDB)</title>
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<meta name="description" content="Numeric Arguments (Debugging with GDB)">
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<meta name="keywords" content="Numeric Arguments (Debugging with GDB)">
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<meta name="resource-type" content="document">
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<meta name="distribution" content="global">
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<meta name="Generator" content="makeinfo">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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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="Bindable-Readline-Commands.html#Bindable-Readline-Commands" rel="up" title="Bindable Readline Commands">
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<link href="Commands-For-Completion.html#Commands-For-Completion" rel="next" title="Commands For Completion">
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<link href="Commands-For-Killing.html#Commands-For-Killing" rel="prev" title="Commands For Killing">
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-->
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</style>
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</head>
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<body lang="en">
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<a name="Numeric-Arguments"></a>
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<div class="header">
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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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</div>
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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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</dl>
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</body>
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</html>
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