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28.3 Annotation for GDB Input

When GDB 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.

Different kinds of input each have a different input type. Each input type has three annotations: a pre- 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 post- annotation which denotes the end of any echo which may (or may not) be associated with the input. For example, the prompt input type features the following annotations:

^Z^Zpre-prompt
^Z^Zprompt
^Z^Zpost-prompt

The input types are

prompt

When GDB is prompting for a command (the main GDB prompt).

commands

When GDB prompts for a set of commands, like in the commands command. The annotations are repeated for each command which is input.

overload-choice

When GDB wants the user to select between various overloaded functions.

query

When GDB wants the user to confirm a potentially dangerous operation.

prompt-for-continue

When GDB is asking the user to press return to continue. Note: Don’t expect this to work well; instead use set height 0 to disable prompting. This is because the counting of lines is buggy in the presence of annotations.

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