Major mode for editing Fortran 90,95 code in free format.
For fixed format code, use `fortran-mode'.
M-x f90-indent-line indents the current line.
M-x f90-indent-new-line indents current line and creates a new indented line.
M-x f90-indent-subprogram indents the current subprogram.
Type `? or `C-h to display a list of built-in abbrevs for F90 keywords.
Key definitions:
Uses keymap `f90-mode-map', which is not currently defined.
Variables controlling indentation style and extra features:
`f90-do-indent'
Extra indentation within do blocks (default 3).
`f90-if-indent'
Extra indentation within if/select/where/forall blocks (default 3).
`f90-type-indent'
Extra indentation within type/enum/interface/block-data blocks (default 3).
`f90-program-indent'
Extra indentation within program/module/subroutine/function blocks
(default 2).
`f90-associate-indent'
Extra indentation within associate blocks (default 2).
`f90-critical-indent'
Extra indentation within critical/block blocks (default 2).
`f90-continuation-indent'
Extra indentation applied to continuation lines (default 5).
`f90-comment-region'
String inserted by function M-x f90-comment-region at start of each
line in region (default "!!!$").
`f90-indented-comment-re'
Regexp determining the type of comment to be intended like code
(default "!").
`f90-directive-comment-re'
Regexp of comment-like directive like "!HPF\\$", not to be indented
(default "!hpf\\$").
`f90-break-delimiters'
Regexp holding list of delimiters at which lines may be broken
(default "[-+*/><=,% \t]").
`f90-break-before-delimiters'
Non-nil causes `f90-do-auto-fill' to break lines before delimiters
(default t).
`f90-beginning-ampersand'
Automatic insertion of & at beginning of continuation lines (default t).
`f90-smart-end'
From an END statement, check and fill the end using matching block start.
Allowed values are 'blink, 'no-blink, and nil, which determine
whether to blink the matching beginning (default 'blink).
`f90-auto-keyword-case'
Automatic change of case of keywords (default nil).
The possibilities are 'downcase-word, 'upcase-word, 'capitalize-word.
`f90-leave-line-no'
Do not left-justify line numbers (default nil).
Turning on F90 mode calls the value of the variable `f90-mode-hook'
with no args, if that value is non-nil.
(fn)