Fortran Mode
Fortran mode provides special motion commands for Fortran statements and
subprograms, and indentation commands that understand Fortran conventions
of nesting, line numbers and continuation statements. Fortran mode has
its own Auto Fill mode that breaks long lines into proper Fortran
continuation lines.
Special commands for comments are provided because Fortran comments
are unlike those of other languages. Built-in abbrevs optionally save
typing when you insert Fortran keywords.
Use M-x fortran-mode to switch to this major mode. This command
runs the hook fortran-mode-hook (see Hooks).
Fortran mode is meant for editing Fortran77 "fixed format" source
code. For editing the modern Fortran90 "free format" source code,
use F90 mode (f90-mode). Emacs normally uses Fortran mode for
files with extension .f, .F or .for, and F90 mode
for the extension .f90. GNU Fortran supports both kinds of
format.
- Motion: Moving point by statements or subprograms.
- Indent: Indentation commands for Fortran.
- Comments: Inserting and aligning comments.
- Autofill: Auto fill minor mode for Fortran.
- Columns: Measuring columns for valid Fortran.
- Abbrev: Built-in abbrevs for Fortran keywords.
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