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The X-Symbol package is described in the Proof General user manual. To configure X-Symbol for Proof General, you must understand a little bit of how X-Symbol works: read the documentation that is supplied with it.
The basic task is to set up a token language for your proof
assistant. If your assistant is stored in the subdirectory
myprover, the token language will be called myprover and be
defined in a file `x-symbol-myprover.el' which is
automatically loaded by X-Symbol. The name of the token language mode
will be myproversym
.
Proof General will check that the file `x-symbol-myprover.el' exists and set up X-Symbol to load it. The token language file must define a number of standard settings, and X-Symbol will give warnings if any of them are missing.
Apart from the token language file, there are several settings for X-Symbol which you can set in the usual configuration file `myprover.el'. These settings are optional.
We expect tokens to be used uniformly, so that along with each script
mode buffer, the response buffer and goals buffer also invoke X-Symbol
to display special characters in the same token language. This happens
automatically. If you want additional modes to use X-Symbol with the
token language for your proof assistant, you can set
proof-xsym-extra-modes
.
Set this variable if you want additional modes to also display tokens (for example, editing documentation or source code files).
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