84 lines
4.2 KiB
HTML
84 lines
4.2 KiB
HTML
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<title>Prompting - GDB's Obsolete Annotations</title>
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<a name="Prompting"></a>
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Next: <a rel="next" accesskey="n" href="Errors.html#Errors">Errors</a>,
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<h2 class="chapter">8 Annotation for <span class="sc">gdb</span> Input</h2>
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<p><a name="index-annotations-for-prompts-44"></a>When <span class="sc">gdb</span> prompts for input, it annotates this fact so it is possible
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to know when to send output, when the output from a given command is
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over, etc.
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<p>Different kinds of input each have a different <dfn>input type</dfn>. Each
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input type has three annotations: a <code>pre-</code> annotation, which
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denotes the beginning of any prompt which is being output, a plain
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annotation, which denotes the end of the prompt, and then a <code>post-</code>
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annotation which denotes the end of any echo which may (or may not) be
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associated with the input. For example, the <code>prompt</code> input type
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features the following annotations:
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<pre class="smallexample"> ^Z^Zpre-prompt
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^Z^Zprompt
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^Z^Zpost-prompt
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</pre>
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<p>The input types are
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<a name="index-pre_002dprompt-45"></a>
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<a name="index-prompt-46"></a>
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<a name="index-post_002dprompt-47"></a>
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<dl><dt><code>prompt</code><dd>When <span class="sc">gdb</span> is prompting for a command (the main <span class="sc">gdb</span> prompt).
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<p><a name="index-pre_002dcommands-48"></a><a name="index-commands-49"></a><a name="index-post_002dcommands-50"></a><br><dt><code>commands</code><dd>When <span class="sc">gdb</span> prompts for a set of commands, like in the <code>commands</code>
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command. The annotations are repeated for each command which is input.
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<p><a name="index-pre_002doverload_002dchoice-51"></a><a name="index-overload_002dchoice-52"></a><a name="index-post_002doverload_002dchoice-53"></a><br><dt><code>overload-choice</code><dd>When <span class="sc">gdb</span> wants the user to select between various overloaded functions.
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<p><a name="index-pre_002dquery-54"></a><a name="index-query-55"></a><a name="index-post_002dquery-56"></a><br><dt><code>query</code><dd>When <span class="sc">gdb</span> wants the user to confirm a potentially dangerous operation.
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<p><a name="index-pre_002dprompt_002dfor_002dcontinue-57"></a><a name="index-prompt_002dfor_002dcontinue-58"></a><a name="index-post_002dprompt_002dfor_002dcontinue-59"></a><br><dt><code>prompt-for-continue</code><dd>When <span class="sc">gdb</span> is asking the user to press return to continue. Note: Don't
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expect this to work well; instead use <code>set height 0</code> to disable
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prompting. This is because the counting of lines is buggy in the
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presence of annotations.
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</dl>
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</body></html>
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