1<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 2<html> 3<!-- Copyright (C) 1988-2021 Free Software Foundation, Inc. 4 5Permission is granted to copy, distribute and/or modify this document 6under the terms of the GNU Free Documentation License, Version 1.3 or 7any later version published by the Free Software Foundation; with the 8Invariant Sections being "Free Software" and "Free Software Needs 9Free Documentation", with the Front-Cover Texts being "A GNU Manual," 10and with the Back-Cover Texts as in (a) below. 11 12(a) The FSF's Back-Cover Text is: "You are free to copy and modify 13this GNU Manual. Buying copies from GNU Press supports the FSF in 14developing GNU and promoting software freedom." --> 15<!-- Created by GNU Texinfo 5.1, http://www.gnu.org/software/texinfo/ --> 16<head> 17<title>Debugging with GDB: Prompting</title> 18 19<meta name="description" content="Debugging with GDB: Prompting"> 20<meta name="keywords" content="Debugging with GDB: Prompting"> 21<meta name="resource-type" content="document"> 22<meta name="distribution" content="global"> 23<meta name="Generator" content="makeinfo"> 24<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> 25<link href="index.html#Top" rel="start" title="Top"> 26<link href="Concept-Index.html#Concept-Index" rel="index" title="Concept Index"> 27<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> 28<link href="Annotations.html#Annotations" rel="up" title="Annotations"> 29<link href="Errors.html#Errors" rel="next" title="Errors"> 30<link href="Server-Prefix.html#Server-Prefix" rel="previous" title="Server Prefix"> 31<style type="text/css"> 32<!-- 33a.summary-letter {text-decoration: none} 34blockquote.smallquotation {font-size: smaller} 35div.display {margin-left: 3.2em} 36div.example {margin-left: 3.2em} 37div.indentedblock {margin-left: 3.2em} 38div.lisp {margin-left: 3.2em} 39div.smalldisplay {margin-left: 3.2em} 40div.smallexample {margin-left: 3.2em} 41div.smallindentedblock {margin-left: 3.2em; font-size: smaller} 42div.smalllisp {margin-left: 3.2em} 43kbd {font-style:oblique} 44pre.display {font-family: inherit} 45pre.format {font-family: inherit} 46pre.menu-comment {font-family: serif} 47pre.menu-preformatted {font-family: serif} 48pre.smalldisplay {font-family: inherit; font-size: smaller} 49pre.smallexample {font-size: smaller} 50pre.smallformat {font-family: inherit; font-size: smaller} 51pre.smalllisp {font-size: smaller} 52span.nocodebreak {white-space:nowrap} 53span.nolinebreak {white-space:nowrap} 54span.roman {font-family:serif; font-weight:normal} 55span.sansserif {font-family:sans-serif; font-weight:normal} 56ul.no-bullet {list-style: none} 57--> 58</style> 59 60 61</head> 62 63<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000"> 64<a name="Prompting"></a> 65<div class="header"> 66<p> 67Next: <a href="Errors.html#Errors" accesskey="n" rel="next">Errors</a>, Previous: <a href="Server-Prefix.html#Server-Prefix" accesskey="p" rel="previous">Server Prefix</a>, Up: <a href="Annotations.html#Annotations" accesskey="u" rel="up">Annotations</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> 68</div> 69<hr> 70<a name="Annotation-for-GDB-Input"></a> 71<h3 class="section">28.3 Annotation for <small>GDB</small> Input</h3> 72 73<a name="index-annotations-for-prompts"></a> 74<p>When <small>GDB</small> prompts for input, it annotates this fact so it is possible 75to know when to send output, when the output from a given command is 76over, etc. 77</p> 78<p>Different kinds of input each have a different <em>input type</em>. Each 79input type has three annotations: a <code>pre-</code> annotation, which 80denotes the beginning of any prompt which is being output, a plain 81annotation, which denotes the end of the prompt, and then a <code>post-</code> 82annotation which denotes the end of any echo which may (or may not) be 83associated with the input. For example, the <code>prompt</code> input type 84features the following annotations: 85</p> 86<div class="smallexample"> 87<pre class="smallexample">^Z^Zpre-prompt 88^Z^Zprompt 89^Z^Zpost-prompt 90</pre></div> 91 92<p>The input types are 93</p> 94<dl compact="compact"> 95<dd><a name="index-pre_002dprompt-annotation"></a> 96<a name="index-prompt-annotation"></a> 97<a name="index-post_002dprompt-annotation"></a> 98</dd> 99<dt><code>prompt</code></dt> 100<dd><p>When <small>GDB</small> is prompting for a command (the main <small>GDB</small> prompt). 101</p> 102<a name="index-pre_002dcommands-annotation"></a> 103<a name="index-commands-annotation"></a> 104<a name="index-post_002dcommands-annotation"></a> 105</dd> 106<dt><code>commands</code></dt> 107<dd><p>When <small>GDB</small> prompts for a set of commands, like in the <code>commands</code> 108command. The annotations are repeated for each command which is input. 109</p> 110<a name="index-pre_002doverload_002dchoice-annotation"></a> 111<a name="index-overload_002dchoice-annotation"></a> 112<a name="index-post_002doverload_002dchoice-annotation"></a> 113</dd> 114<dt><code>overload-choice</code></dt> 115<dd><p>When <small>GDB</small> wants the user to select between various overloaded functions. 116</p> 117<a name="index-pre_002dquery-annotation"></a> 118<a name="index-query-annotation"></a> 119<a name="index-post_002dquery-annotation"></a> 120</dd> 121<dt><code>query</code></dt> 122<dd><p>When <small>GDB</small> wants the user to confirm a potentially dangerous operation. 123</p> 124<a name="index-pre_002dprompt_002dfor_002dcontinue-annotation"></a> 125<a name="index-prompt_002dfor_002dcontinue-annotation"></a> 126<a name="index-post_002dprompt_002dfor_002dcontinue-annotation"></a> 127</dd> 128<dt><code>prompt-for-continue</code></dt> 129<dd><p>When <small>GDB</small> is asking the user to press return to continue. Note: Don’t 130expect this to work well; instead use <code>set height 0</code> to disable 131prompting. This is because the counting of lines is buggy in the 132presence of annotations. 133</p></dd> 134</dl> 135 136<hr> 137<div class="header"> 138<p> 139Next: <a href="Errors.html#Errors" accesskey="n" rel="next">Errors</a>, Previous: <a href="Server-Prefix.html#Server-Prefix" accesskey="p" rel="previous">Server Prefix</a>, Up: <a href="Annotations.html#Annotations" accesskey="u" rel="up">Annotations</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> 140</div> 141 142 143 144</body> 145</html> 146