31.12.6 Fortran Keyword Abbrevs
Fortran mode provides many built-in abbrevs for common keywords and
declarations. These are the same sort of abbrev that you can define
yourself. To use them, you must turn on Abbrev mode. See Abbrevs.
The built-in abbrevs are unusual in one way: they all start with a
semicolon. You cannot normally use semicolon in an abbrev, but Fortran
mode makes this possible by changing the syntax of semicolon to “word
constituent.”
For example, one built-in Fortran abbrev is ‘;c’ for
‘continue’. If you insert ‘;c’ and then insert a punctuation
character such as a space or a newline, the ‘;c’ expands automatically
to ‘continue’, provided Abbrev mode is enabled.
Type ‘;?’ or ‘;C-h’ to display a list of all the built-in
Fortran abbrevs and what they stand for.