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<h3 class="section">28.3 Annotation for <span class="sc">gdb</span> Input</h3>

<p><a name="index-annotations-for-prompts-2135"></a>When <span class="sc">gdb</span> prompts for input, it annotates this fact so it is possible
to know when to send output, when the output from a given command is
over, etc.

   <p>Different kinds of input each have a different <dfn>input type</dfn>.  Each
input type has three annotations: a <code>pre-</code> annotation, which
denotes the beginning of any prompt which is being output, a plain
annotation, which denotes the end of the prompt, and then a <code>post-</code>
annotation which denotes the end of any echo which may (or may not) be
associated with the input.  For example, the <code>prompt</code> input type
features the following annotations:

<pre class="smallexample">     ^Z^Zpre-prompt
     ^Z^Zprompt
     ^Z^Zpost-prompt
</pre>
   <p>The input types are

     
<a name="index-pre_002dprompt-annotation-2136"></a>
<a name="index-prompt-annotation-2137"></a>
<a name="index-post_002dprompt-annotation-2138"></a>
<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).

     <p><a name="index-pre_002dcommands-annotation-2139"></a><a name="index-commands-annotation-2140"></a><a name="index-post_002dcommands-annotation-2141"></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>
command.  The annotations are repeated for each command which is input.

     <p><a name="index-pre_002doverload_002dchoice-annotation-2142"></a><a name="index-overload_002dchoice-annotation-2143"></a><a name="index-post_002doverload_002dchoice-annotation-2144"></a><br><dt><code>overload-choice</code><dd>When <span class="sc">gdb</span> wants the user to select between various overloaded functions.

     <p><a name="index-pre_002dquery-annotation-2145"></a><a name="index-query-annotation-2146"></a><a name="index-post_002dquery-annotation-2147"></a><br><dt><code>query</code><dd>When <span class="sc">gdb</span> wants the user to confirm a potentially dangerous operation.

     <p><a name="index-pre_002dprompt_002dfor_002dcontinue-annotation-2148"></a><a name="index-prompt_002dfor_002dcontinue-annotation-2149"></a><a name="index-post_002dprompt_002dfor_002dcontinue-annotation-2150"></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
expect this to work well; instead use <code>set height 0</code> to disable
prompting.  This is because the counting of lines is buggy in the
presence of annotations. 
</dl>

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