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(ada-mode)Syntax highlighting

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Syntax highlighting
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   Ada mode is made to help you understand the structure of your source
files. Some  people like having  colors or different fonts  depending on
the  context: commands  should be  displayed differently  than keywords,
which should also be different from strings, ...

   Emacs is able to display in a different way the following syntactic
entities:

   * keywords

   * commands

   * strings

   * gnatprep statements (preprocessor)

   * types (under certain conditions)

   * other words

   This  is not  the default  behavior for  Emacs. You  have  to
explicitly activate it. This requires that you add a new line in your
`.emacs' file (if this file does not exist, just create it).

     (global-font-lock-mode t)

   But  the default colors  might not  be the  ones you  like.
Fortunately, there  is  a  very  easy  way  to change  them.  Just
select  the  menu `Help->Customize->Specific  Face...'  and  press
<RET>.  This will display a buffer will all the "faces" (the colors)
that Emacs knows about. You can change any of them.