--- /dev/null
+;; f90.el --- Fortran-90 mode (free format) for GNU Emacs 19.x.
+;; Copyright (C) 1995 Free Software Foundation, Inc.
+
+;; Author: Torbj\"orn Einarsson <tfkte@fy.chalmers.se>
+;; Created: Jan 21, 1995
+;; Version: 1.03
+;; Keywords: fortran, f90, languages
+
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 2 of the License, or
+;; (at your option) any later version.
+
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with this program; if not, write to the Free Software
+;; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+;;; Commentary:
+;; Smart mode for editing F90 programs in FREE FORMAT.
+;; Knows about continuation lines, named structured statements, and other
+;; new features in F90 including HPF (High Performance Fortran) structures.
+;; The basic feature is to provide an accurate indentation of F90 programs.
+;; In addition, there are many more features like automatic matching of all
+;; end statements, an auto-fill function to break long lines, a join-lines
+;; function which joins continued lines etc etc.
+;; To facilitate typing, a fairly complete list of abbreviations is provided.
+;; For example, `i is short-hand for integer (if abbrev-mode is on).
+
+;; There are two separate features for highlighting the code.
+;; 1) Upcasing or capitalizing of all keywords.
+;; 2) Different colors/fonts for different structures. (X-windows)
+;; (using either font-lock-mode or hilit19)
+;; Automatic upcase of downcase of keywords is controlled by the parameter
+;; f90-auto-keyword-case.
+;; To use hilit19 it must be loaded before this file. Then the parameter
+;; f90-auto-hilit19 determines if each line should be updated automatically.
+
+;; The indentations of lines starting with ! is determined by the first of the
+;; following matches:
+;; start-string indent variable holding start-string
+;; !!! 0
+;; !hpf$ 0 f90-directive-comment (default nil)
+;; !!$ 0 f90-comment-region (default !!$)
+;; ! as code f90-indented-comment (a regexp, default !)
+;; default comment-column
+;; Ex: Here is the result of three different settings of f90-indented-comment
+;; f90-indented-comment !-indentation !!-indentation
+;; ! as code as code
+;; !! comment-column as code
+;; ![^!] as code comment-column
+;; Trailing comments are indented to comment-column with indent-for-comment M-;
+;; f90-comment-region (C-c;) toggles insertion of f90-comment-region in region.
+
+;; One common convention for free vs. fixed format is that free-format files
+;; have the ending .f90 while the fixed format files have the ending .f.
+;; To make f90-mode work, put this file in, for example, your directory
+;; ~/lisp, and be sure that you have the following in your .emacs-file
+;; (setq load-path (append load-path '("~/lisp")))
+;; (autoload 'f90-mode "f90"
+;; "Major mode for editing Fortran 90 code in free format." t)
+;; (setq auto-mode-alist (append auto-mode-alist
+;; (list '("\\.f90$" . f90-mode))))
+;; Once you have entered f90-mode, you may get more info by using
+;; the command describe-mode (C-h m). For online help describing various
+;; functions use C-h f <Name of function you want described>
+
+;; To customize the f90-mode for your taste, use, for example:
+;; (you don't have to specify values for all the parameters below)
+;;(setq f90-mode-hook
+;; '(lambda () (setq f90-do-indent 3
+;; f90-if-indent 3
+;; f90-type-indent 3
+;; f90-program-indent 2
+;; f90-continuation-indent 5
+;; f90-comment-region "!!$"
+;; f90-directive-comment nil
+;; f90-indented-comment "!"
+;; f90-break-delimiters "[-+\\*/,><=% \t]"
+;; f90-break-before-delimiters t
+;; f90-beginning-ampersand t
+;; f90-smart-end 'blink
+;; f90-auto-keyword-case nil
+;; f90-auto-hilit19 t
+;; f90-leave-line-no nil
+;; f90-startup-message t)
+;; ;;The rest is not default.
+;; (abbrev-mode 1) ; turn on abbreviation mode
+;; (f90-auto-fill-mode 1) ; turn on auto-filling
+;; (if f90-auto-keyword-case ; change case of all keywords on startup
+;; (f90-change-keywords f90-auto-keyword-case))
+;; ))
+;; in your .emacs file (the shown values are the defaults). You can also
+;; change the values of the lists f90-keywords etc.
+;; The auto-fill and abbreviation minor modes are accessible from the menu,
+;; or by using M-x f90-auto-fill-mode and M-x abbrev-mode, respectively.
+
+;; Remarks
+;; 1) Line numbers are by default left-justified. If f90-leave-line-no is
+;; non-nil, the line numbers are never touched.
+;; 2) Multi-; statements like > do i=1,20 ; j=j+i ; end do < are not handled
+;; correctly, but I imagine them to be rare.
+;; 3) You can use either hilit19 or font-lock-mode for your highlighting
+;; a) To use hilit19, be sure that hilit19 is loaded before this file
+;; b) To use font-lock-mode, nothing special is needed.
+;; 4) For FIXED FORMAT code, use the ordinary fortran mode.
+;; 5) This mode does not work under emacs-18.x.
+
+;; List of user commands
+;; f90-previous-statement f90-next-statement
+;; f90-beginning-of-subprogram f90-end-of-subprogram f90-mark-subprogram
+;; f90-comment-region
+;; f90-indent-line f90-indent-new-line
+;; f90-indent-region (can be called by calling indent-region)
+;; f90-indent-subprogram
+;; f90-break-line f90-join-lines
+;; f90-auto-fill-mode
+;; f90-fill-region
+;; f90-insert-end
+;; f90-upcase-keywords f90-upcase-region-keywords
+;; f90-downcase-keywords f90-downcase-region-keywords
+;; f90-capitalize-keywords f90-capitalize-region-keywords
+
+;; Thanks to all the people who have tested the mode. Special thanks to Jens
+;; Bloch Helmers for encouraging me to write this code, for creative
+;; suggestions as well as for the lists of hpf-commands.
+;; Also thanks to the authors of the fortran and pascal modes, on which some
+;; of this code is built.
+
+;;; Code:
+(defconst f90-mode-version "version 1.03")
+(defconst bug-f90-mode "tfkte@fy.chalmers.se"
+ "Address of mailing list for F90 mode bugs.")
+
+;; User options
+(defvar f90-do-indent 3
+ "*Extra indentation applied to DO blocks.")
+
+(defvar f90-if-indent 3
+ "*Extra indentation applied to IF, SELECT CASE, WHERE and FORALL blocks.")
+
+(defvar f90-type-indent 3
+ "*Extra indentation applied to TYPE, INTERFACE and BLOCK DATA blocks.")
+
+(defvar f90-program-indent 2
+ "*Extra indentation applied to PROGRAM/MODULE/SUBROUTINE/FUNCTION blocks.")
+
+(defvar f90-continuation-indent 5
+ "*Extra indentation applied to F90 continuation lines.")
+
+(defvar f90-comment-region "!!$"
+ "*String inserted by \\[f90-comment-region]\
+ at start of each line in region.")
+
+(defvar f90-indented-comment "!"
+ "*Comments to be indented like code.")
+
+(defvar f90-directive-comment nil
+ "*String of comment-like directive like \"!HPF$\", not to be indented.")
+
+(defvar f90-beginning-ampersand t
+ "*t makes automatic insertion of \& at beginning of continuation line.")
+
+(defvar f90-smart-end 'blink
+ "*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.")
+
+(defvar f90-break-delimiters "[-+\\*/><=,% \t]"
+ "*Regexp holding list of delimiters at which lines may be broken.")
+
+(defvar f90-break-before-delimiters t
+ "*Non-nil causes `f90-do-auto-fill' to break lines before delimiters.")
+
+(defvar f90-auto-keyword-case nil
+ "*Automatic case conversion of keywords.
+ The options are 'downcase-word, 'upcase-word, 'capitalize-word and nil")
+
+(defvar f90-auto-hilit19 t
+ "*Automatic highlight of line at every indent or newline (for hilit19).")
+
+(defvar f90-leave-line-no nil
+ "*If nil, left-justify linenumbers.")
+
+(defvar f90-startup-message t
+ "*Non-nil displays a startup message when F90 mode is first called.")
+
+(defvar f90-keywords
+ '("allocate" "allocatable" "assign" "assignment" "backspace" "block"
+ "call" "case" "character" "close" "common" "complex" "contains"
+ "continue" "cycle" "data" "deallocate" "dimension" "do" "double" "else"
+ "elseif" "elsewhere" "end" "enddo" "endfile" "endif" "entry" "equivalence"
+ "exit" "external" "forall" "format" "function" "goto" "if" "implicit"
+ "include" "inquire" "integer" "intent" "interface" "intrinsic" "logical"
+ "module" "namelist" "none" "nullify" "open" "optional" "parameter"
+ "pause" "pointer" "precision" "print" "private" "procedure" "program"
+ "public" "read" "real" "recursive" "return" "rewind" "save" "select"
+ "sequence" "stop" "subroutine" "target" "then" "type" "use" "where"
+ "while" "write")
+ "*List of f90-keywords.")
+
+(defvar f90-intrinsic-procedures
+ '("abs" "achar" "acos" "adjustl" "adjustr" "aimag" "aint" "all" "allocated"
+ "anint" "any" "asin" "associated" "atan" "atan2" "bit_size" "btest"
+ "ceiling" "char" "cmplx" "conjg" "cos" "cosh" "count" "cshift"
+ "date_and_time" "dble" "digits" "dim" "dot_product" "dprod" "eoshift"
+ "epsilon" "exp" "exponent" "floor" "fraction" "huge" "iachar" "iand"
+ "ibclr" "ibits" "ibset" "ichar" "ieor" "index" "int" "ior" "ishft"
+ "ishftc" "kind" "lbound" "len" "len_trim" "lge" "lgt" "lle" "llt" "log"
+ "logical" "log10" "matmul" "max" "maxexponent" "maxloc" "maxval" "merge"
+ "min" "minexponent" "minloc" "minval" "mod" "modulo" "mvbits" "nearest"
+ "nint" "not" "pack" "precision" "present" "product" "radix" "random_number"
+ "random_seed" "range" "real" "repeat" "reshape" "rrspacing" "scale"
+ "scan" "selected_int_kind" "selected_real_kind" "set_exponent" "shape"
+ "sign" "sin" "sinh" "size" "spacing" "spread" "sqrt" "sum"
+ "system_clock" "tan" "tanh" "tiny" "transfer" "transpose" "trim"
+ "ubound" "unpack" "verify")
+ "*List of F90 intrinsic procedures.")
+
+(defvar f90-hpf-procedures
+ '("all_prefix" "all_scatter" "all_suffix" "any_prefix" "any_scatter"
+ "any_suffix" "copy_prefix" "copy_scatter" "copy_suffix" "count_prefix"
+ "count_scatter" "count_suffix" "grade_down" "grade_up" "hpf_alignment"
+ "hpf_template" "hpf_distribution" "iall" "iall_prefix" "iall_scatter"
+ "iall_suffix" "iany" "iany_prefix" "iany_scatter" "iany_suffix" "iparity"
+ "iparity_prefix" "iparity_scatter" "iparity_suffix" "leadz" "maxval_prefix"
+ "maxval_scatter" "maxval_suffix" "minval_prefix" "minval_scatter"
+ "minval_suffix" "parity" "parity_prefix" "parity_scatter" "parity_suffix"
+ "popcnt" "poppar" "product_prefix" "product_scatter" "product_suffix"
+ "sum_prefix" "sum_scatter" "sum_suffix" "ilen" "number_of_processors"
+ "processors_shape")
+ "*List of hpf intrinsic procedures.")
+
+(defvar f90-hpf-directives
+ '("align" "distribute" "dynamic" "inherit" "template" "processors"
+ "realign" "redistribute" "independent")
+ "*List of hpf directives.")
+
+(defvar f90-hpf-keywords
+ '("pure" "extrinsic" "new" "with" "onto" "block" "cyclic")
+ "*List of hpf keywords.")
+
+;; Highlighting patterns
+
+(defconst f90-font-lock-keywords-1
+ (purecopy
+ (list
+ ;; Subroutine and function declarations
+ '("^[ \t]*\\(program\\|module\\)[ \t]+\\sw+" 1 font-lock-keyword-face)
+ '("^[ \t]*\\(program\\|module\\)[ \t]+\\(\\sw+\\)" 2
+ font-lock-function-name-face)
+ '("\\(^.*\\(function\\|subroutine\\)\\)[ \t]+\\sw+" 1
+ font-lock-keyword-face)
+ '("^.*\\(function\\|subroutine\\)[ \t]+\\(\\sw+\\)" 2
+ font-lock-function-name-face)
+ '("^[ \t]*end[ \t]*\\(program\\|module\\|function\\|subroutine\\|type\\)"
+ . font-lock-keyword-face)
+ (list (concat "^[ \t]*end[ \t]*\\(program\\|module\\|function\\|"
+ "subroutine\\|type\\)[ \t]+\\(\\sw+\\)") 2
+ 'font-lock-function-name-face)
+ '("^[ \t]*\\(type\\)[ \t]+\\sw+" 1 font-lock-keyword-face)
+ '("^[ \t]*type[ \t]+\\(\\sw+\\)" 1 font-lock-function-name-face)
+ '("^[ \t]*\\(end[ \t]*\\)?interface\\>" . font-lock-keyword-face)
+ '("^[ \t]*contains\\>" . font-lock-keyword-face)))
+ "For consideration as a value of `f90-font-lock-keywords-1'.
+This does fairly subdued highlighting of comments and function names.")
+
+(defconst f90-font-lock-keywords-2
+ (purecopy
+ (append f90-font-lock-keywords-1
+ (list
+ ;; Variable declarations
+ '("\\(\\(real\\|integer\\|character\\|complex\\|logical\\|type\\).*\\)::"
+ 1 font-lock-type-face)
+ '("implicit[ \t]*none" . font-lock-keyword-face)
+ '("^[ \t]*\\(\\sw+[ \t]*:[ \t]*\\)?\\(do\\([ \t]*while\\)?\\)\\>"
+ 2 font-lock-keyword-face)
+ '("^[ \t]*\\(\\sw+\\)[ \t]*:[ \t]*\\(do\\([ \t]*while\\)?\\)\\>" 1
+ font-lock-function-name-face)
+ '("^[ \t]*\\(end[ \t]*do\\)\\>" 1 font-lock-keyword-face)
+ '("^[ \t]*end[ \t]*do[ \t]+\\(\\sw+\\)" 1 font-lock-function-name-face)
+ '("^[ \t]*\\(\\sw+[ \t]*:[ \t]*\\)?\\(if\\)\\>" 2
+ font-lock-keyword-face)
+ '("^[ \t]*\\(\\sw+\\)[ \t]*:[ \t]*if\\>" 1 font-lock-function-name-face)
+ '("^[ \t]*\\(end[ \t]*if\\)\\>" 1 font-lock-keyword-face)
+ '("^[ \t]*end[ \t]*if[ \t]+\\(\\sw+\\)" 1 font-lock-function-name-face)
+ '("^[ \t]*\\(\\sw+[ \t]*:[ \t]*\\)?\\(select[ \t]*case\\)\\>" 2
+ font-lock-keyword-face)
+ '("^[ \t]*\\(\\sw+\\)[ \t]*:[ \t]*\\(select[ \t]*case\\)\\>" 1
+ font-lock-function-name-face)
+ '("^[ \t]*end[ \t]*select\\>" . font-lock-keyword-face)
+ '("^[ \t]*end[ \t]*select\\>[ \t]+\\(\\sw+\\)" 1
+ font-lock-function-name-face)
+ '("\\(where\\|forall\\)[ \t]*(" 1 font-lock-keyword-face)
+ '("\\<\\(elsewhere\\|else\\|else[ \t]*if\\)\\>" . font-lock-keyword-face)
+ '("\\<end[ \t]*\\(where\\|forall\\)\\>" . font-lock-keyword-face)
+ '("\\<then\\>" . font-lock-keyword-face)
+ '("\\<\\(exit\\|cycle\\)\\>" . font-lock-keyword-face)
+ '("\\<\\(exit\\|cycle\\)[ \t]*\\(\\sw+\\)\\>" 2
+ font-lock-function-name-face)
+ '("\\<\\(stop\\|return\\)\\>" . font-lock-keyword-face)
+ '("^[ \t]*\\(case\\)[ \t]*\\((\\|default\\)" 1 font-lock-keyword-face)
+ (concat "\\<\\("(mapconcat 'identity f90-keywords "\\|") "\\)\\>")
+ (concat "\\<\\("(mapconcat 'identity f90-intrinsic-procedures "\\|")
+ "\\)\\>")
+ (concat "\\<\\("(mapconcat 'identity f90-hpf-procedures "\\|")
+ "\\)\\>")
+ (concat "\\<\\("(mapconcat 'identity f90-hpf-directives "\\|")
+ "\\)\\>")
+ (concat "\\<\\("(mapconcat 'identity f90-hpf-keywords "\\|")
+ "\\)\\>"))))
+ "For consideration as a value of `f90-font-lock-keywords'.
+This highlights variable types, \"keywords,\" etc.")
+
+(defvar f90-font-lock-keywords f90-font-lock-keywords-2
+ "*Additional expressions to highlight in F90 mode.")
+
+;; hilit19 customization and expressions
+(defvar f90-face-string 'named-param "*Face for strings.")
+(defvar f90-face-comment 'comment "*Face for comments.")
+(defvar f90-face-decl 'include "*Face for declarations.")
+(defvar f90-face-prog 'defun "*Face for program blocks.")
+(defvar f90-face-label 'Tomato-bold "*Face for labels.")
+(defvar f90-face-type 'defun "*Face for type blocks.")
+(defvar f90-face-interface 'defun "*Face for interface blocks.")
+(defvar f90-face-contains 'defun "*Face for contains statement.")
+(defvar f90-face-do 'SteelBlue-bold "*Face for do-structure.")
+(defvar f90-face-if 'define "*Face for if-structure.")
+(defvar f90-face-select 'define "*Face for select-case structure.")
+(defvar f90-face-stop 'defun "*Face for stop and return.")
+(defvar f90-face-exit 'SteelBlue-bold "*Face for exit and cycle.")
+(defvar f90-face-keyword 'struct "*Face for keywords.")
+(defvar f90-face-intrinsics 'struct "*Face for intrinsic procedures.")
+;; Highlighting for HPF (High-Peformance Fortran)
+(defvar f90-face-hpf-procedures 'struct "*Face for hpf procedures.")
+(defvar f90-face-hpf-directives 'struct "*Face for hpf directives.")
+(defvar f90-face-hpf-keywords 'struct "*Face for hpf keywords.")
+
+(if (fboundp 'hilit-set-mode-patterns)
+ (hilit-set-mode-patterns
+ 'f90-mode
+ (list
+ ;; Allow for strings delimited by ' and by " and for multirow strings.
+ ;; A multi-row string includes &\n& (+ possible whitespace and comments)
+ (list (concat
+ "\\(\"[^\"\n]*\\(&[ \t]*\\(![^\n]*\\)?\n[ \t]*&[^\"\n]*\\)*\""
+ "\\|'[^'\n]*\\(&[ \t]*\\(![^\n]*\\)?\n[ \t]*&[^'\n]*\\)*'\\)")
+ nil f90-face-string)
+ (list "!" "$" f90-face-comment)
+ (list "\\(\\(real\\|integer\\|character\\|complex\\|logical\
+\\|type\\).*\\)::" 1 f90-face-decl)
+ (list "implicit[ \t]*none" nil f90-face-decl)
+ (list "^[ \t]*\\(program\\|module\\)[ \t]+\\sw+" 1 f90-face-prog)
+ (list "^[ \t]*\\(program\\|module\\)[ \t]+\\(\\sw+\\)" 2 f90-face-label)
+ (list "\\(^.*\\(function\\|subroutine\\)\\)[ \t]+\\sw+" 1
+ f90-face-prog)
+ (list "^.*\\(function\\|subroutine\\)[ \t]+\\(\\sw+\\)" 2
+ f90-face-label)
+ (list "^[ \t]*end[ \t]*\\(program\\|module\\|function\
+\\|subroutine\\|type\\)" nil f90-face-prog)
+ (list (concat "^[ \t]*end[ \t]*\\(program\\|module\\|function\\|"
+ "subroutine\\|type\\)[ \t]+\\(\\sw+\\)") 2 f90-face-label)
+ (list "^[ \t]*\\(type\\)[ \t]+\\sw+" 1 f90-face-type)
+ (list "^[ \t]*type[ \t]+\\(\\sw+\\)" 1 f90-face-label)
+ (list "^[ \t]*\\(end[ \t]*\\)?interface\\>" nil f90-face-interface)
+ (list "^[ \t]*contains\\>" nil f90-face-contains)
+ (list "^[ \t]*\\(\\sw+[ \t]*:[ \t]*\\)?\\(do\\([ \t]*while\\)?\\)\\>"
+ 2 f90-face-do)
+ (list "^[ \t]*\\(\\sw+\\)[ \t]*:[ \t]*\\(do\\([ \t]*while\\)?\\)\\>" 1
+ f90-face-label)
+ (list "^[ \t]*\\(end[ \t]*do\\)\\>" 1 f90-face-do)
+ (list "^[ \t]*end[ \t]*do[ \t]+\\(\\sw+\\)" 1 f90-face-label)
+ (list "^[ \t]*\\(\\sw+[ \t]*:[ \t]*\\)?\\(if\\)\\>" 2 f90-face-if)
+ (list "^[ \t]*\\(\\sw+\\)[ \t]*:[ \t]*if\\>" 1 f90-face-label)
+ (list "^[ \t]*\\(end[ \t]*if\\)\\>" 1 f90-face-if)
+ (list "^[ \t]*end[ \t]*if[ \t]+\\(\\sw+\\)" 1 f90-face-label)
+ (list "^[ \t]*\\(\\sw+[ \t]*:[ \t]*\\)?\\(select[ \t]*case\\)\\>" 2
+ f90-face-select)
+ (list "^[ \t]*\\(\\sw+\\)[ \t]*:[ \t]*\\(select[ \t]*case\\)\\>" 1
+ f90-face-label)
+ (list "^[ \t]*end[ \t]*select\\>" nil f90-face-select)
+ (list "^[ \t]*end[ \t]*select\\>[ \t]+\\(\\sw+\\)" 1 f90-face-label)
+ (list "\\(where\\|forall\\)[ \t]*(" 1 f90-face-if)
+ (list "\\<\\(elsewhere\\|else\\|else[ \t]*if\\)\\>" nil f90-face-if)
+ (list "\\<end[ \t]*\\(where\\|forall\\)\\>" nil f90-face-if)
+ (list "\\<then\\>" nil f90-face-if)
+ (list "\\<\\(exit\\|cycle\\)\\>" nil f90-face-exit)
+ (list "\\<\\(exit\\|cycle\\)[ \t]*\\sw+\\>" nil f90-face-label)
+ (list "\\<\\(stop\\|return\\)\\>" nil f90-face-stop)
+ (list "^[ \t]*\\(case\\)[ \t]*\\((\\|default\\)" 1 f90-face-select)
+ (list (concat "\\<\\("(mapconcat 'identity f90-keywords "\\|")
+ "\\)\\>") nil f90-face-keyword)
+ (list (concat "\\<\\("(mapconcat 'identity f90-intrinsic-procedures "\\|")
+ "\\)\\>") nil f90-face-intrinsics)
+ (list (concat "\\<\\("(mapconcat 'identity f90-hpf-procedures "\\|")
+ "\\)\\>") nil f90-face-hpf-procedures)
+ (list (concat "\\<\\("(mapconcat 'identity f90-hpf-directives "\\|")
+ "\\)\\>") nil f90-face-hpf-directives)
+ (list (concat "\\<\\("(mapconcat 'identity f90-hpf-keywords "\\|")
+ "\\)\\>") nil f90-face-hpf-keywords))
+ nil 'case-insensitive))
+
+;; syntax table
+(defvar f90-mode-syntax-table nil
+ "Syntax table in use in F90 mode buffers.")
+
+(if f90-mode-syntax-table
+ ()
+ (setq f90-mode-syntax-table (make-syntax-table))
+ (modify-syntax-entry ?\! "<" f90-mode-syntax-table) ; beg. comment
+ (modify-syntax-entry ?\n ">" f90-mode-syntax-table) ; end comment
+ (modify-syntax-entry ?_ "w" f90-mode-syntax-table) ; underscore in names
+ (modify-syntax-entry ?\' "\"" f90-mode-syntax-table) ; string quote
+ (modify-syntax-entry ?\" "\"" f90-mode-syntax-table) ; string quote
+ (modify-syntax-entry ?\` "w" f90-mode-syntax-table) ; for abbrevs
+ (modify-syntax-entry ?\r " " f90-mode-syntax-table) ; return is whitespace
+ (modify-syntax-entry ?+ "." f90-mode-syntax-table)
+ (modify-syntax-entry ?- "." f90-mode-syntax-table)
+ (modify-syntax-entry ?= "." f90-mode-syntax-table)
+ (modify-syntax-entry ?* "." f90-mode-syntax-table)
+ (modify-syntax-entry ?/ "." f90-mode-syntax-table)
+ (modify-syntax-entry ?\\ "/" f90-mode-syntax-table)) ; escape chars
+
+;; keys
+(defvar f90-mode-map ()
+ "Keymap used in F90 mode.")
+(if f90-mode-map
+ ()
+ (setq f90-mode-map (make-sparse-keymap))
+ (define-key f90-mode-map "`" 'f90-abbrev-start)
+ (define-key f90-mode-map "\C-c;" 'f90-comment-region)
+ (define-key f90-mode-map "\C-\M-a" 'f90-beginning-of-subprogram)
+ (define-key f90-mode-map "\C-\M-e" 'f90-end-of-subprogram)
+ (define-key f90-mode-map "\C-\M-h" 'f90-mark-subprogram)
+ (define-key f90-mode-map "\C-\M-q" 'f90-indent-subprogram)
+ (define-key f90-mode-map "\C-j" 'f90-indent-new-line) ; LFD equals C-j
+ (define-key f90-mode-map "\r" 'newline)
+ (define-key f90-mode-map "\C-c\r" 'f90-break-line)
+ ;; (define-key f90-mode-map [M-return] 'f90-break-line)
+ (define-key f90-mode-map "\C-c\C-d" 'f90-join-lines)
+ (define-key f90-mode-map "\C-c\C-f" 'f90-fill-region)
+ (define-key f90-mode-map "\C-c\C-p" 'f90-previous-statement)
+ (define-key f90-mode-map "\C-c\C-n" 'f90-next-statement)
+ (define-key f90-mode-map "\C-c\C-w" 'f90-insert-end)
+ (define-key f90-mode-map "\t" 'f90-indent-line))
+;; menus
+(if (string-match "Lucid" emacs-version)
+ ;; XEmacs
+ (progn
+ (add-menu nil "F90"
+ '(
+ ["Indent subprogram" f90-indent-subprogram t]
+ ["Mark subprogram" f90-mark-subprogram t]
+ ["Beginning of subprogram" f90-beginning-of-subprogram t]
+ ["End of subprogram" f90-end-of-subprogram t]
+ "-----"
+ ["(Un)Comment region" f90-comment-region t]
+ ["Indent region" indent-region t]
+ ["Fill region" f90-fill-region t]
+ "-----"
+ ["Break line at point" f90-break-line t]
+ ["Join with next line" f90-join-lines t]
+ ["Insert newline." newline t]
+ ["Insert end." f90-insert-end t]
+ "-----"
+ ["UPCASE keywords (buffer)" f90-upcase-keywords t]
+ ["UPCASE keywords (region)" f90-upcase-region-keywords
+ t]
+ ["Capitalize keywords (buffer)" f90-capitalize-keywords t]
+ ["Capitalize keywords (region)"
+ f90-capitalize-region-keywords t]
+ ["downcase keywords (buffer)" f90-downcase-keywords t]
+ ["downcase keywords (region)"
+ f90-downcase-region-keywords t]
+ "-----"
+ ["Toggle abbrev-mode" abbrev-mode t]
+ ["Toggle auto-fill" f90-auto-fill-mode t])))
+ ;; FSF Emacs
+ (define-key f90-mode-map [menu-bar] (make-sparse-keymap))
+ (define-key f90-mode-map [menu-bar f90]
+ (cons "F90" (make-sparse-keymap "f90")))
+ (define-key f90-mode-map [menu-bar f90 abbrev-mode]
+ '("Toggle abbrev-mode" . abbrev-mode))
+ (define-key f90-mode-map [menu-bar f90 f90-auto-fill-mode]
+ '("Toggle auto-fill" . f90-auto-fill-mode))
+ (define-key f90-mode-map [menu-bar f90 f90-downcase-region-keywords]
+ '("downcase keywords (region)" . f90-downcase-region-keywords))
+ (define-key f90-mode-map [menu-bar f90 f90-downcase-keywords]
+ '("downcase keywords (buffer)" . f90-downcase-keywords))
+ (define-key f90-mode-map [menu-bar f90 f90-capitalize-keywords]
+ '("Capitalize keywords (region)" . f90-capitalize-region-keywords))
+ (define-key f90-mode-map [menu-bar f90 f90-capitalize-region-keywords]
+ '("Capitalize keywords (buffer)" . f90-capitalize-keywords))
+ (define-key f90-mode-map [menu-bar f90 f90-upcase-region-keywords]
+ '("UPCASE keywords (region)" . f90-upcase-region-keywords))
+ (define-key f90-mode-map [menu-bar f90 f90-upcase-keywords]
+ '("UPCASE keywords (buffer)" . f90-upcase-keywords))
+ (define-key f90-mode-map [menu-bar f90 f90-insert-end]
+ '("Insert end." . f90-insert-end))
+ (define-key f90-mode-map [menu-bar f90 f90-join-lines]
+ '("Join with next line." . f90-join-lines))
+ (define-key f90-mode-map [menu-bar f90 f90-break-line]
+ '("Break line at point" . f90-break-line))
+ (define-key f90-mode-map [menu-bar f90 f90-fill-region]
+ '("Fill Region" . f90-fill-region))
+ (define-key f90-mode-map [menu-bar f90 indent-region]
+ '("Indent Region" . indent-region))
+ (define-key f90-mode-map [menu-bar f90 f90-comment-region]
+ '("(Un)Comment Region" . f90-comment-region))
+ (define-key f90-mode-map [menu-bar f90 f90-end-of-subprogram]
+ '("End of Subprogram" . f90-end-of-subprogram))
+ (define-key f90-mode-map [menu-bar f90 f90-beginning-of-subprogram]
+ '("Beginning of Subprogram" . f90-beginning-of-subprogram))
+ (define-key f90-mode-map [menu-bar f90 f90-mark-subprogram]
+ '("Mark Subprogram" . f90-mark-subprogram))
+ (define-key f90-mode-map [menu-bar f90 f90-indent-subprogram]
+ '("Indent Subprogram" . f90-indent-subprogram)))
+
+(defconst f90-symbol-re "[a-z_][a-z_0-9]*")
+(defconst f90-blocks-re
+ "\\(block[ \t]*data\\|do\\|if\\|interface\\|function\\|module\\|\
+program\\|select\\|subroutine\\|type\\|where\\|forall\\)\\>")
+(defconst f90-program-block-re
+ "\\(program\\|module\\|subroutine\\|function\\)")
+(defconst f90-else-like-re
+ "\\(else\\|else[ \t]*if\\|elsewhere\\|case[ \t]*(\\|case[ \t]*default\\)")
+(defconst f90-end-if-re
+ "end[ \t]*\\(if\\|select\\|where\\|forall\\)\\>")
+(defconst f90-end-type-re
+ "end[ \t]*\\(type\\|interface\\|block[ \t]*data\\)\\>")
+(defconst f90-no-break-re "\\(\\*\\*\\|//\\|=>\\)")
+;; A temporary position to make region operators faster
+(defvar f90-cache-position nil)
+(make-variable-buffer-local 'f90-cache-position)
+\f
+;; abbrevs have generally two letters, except standard types `c, `i, `r, `t
+(defvar f90-mode-abbrev-table nil)
+(if f90-mode-abbrev-table
+ ()
+ (let ((ac abbrevs-changed))
+ (define-abbrev-table 'f90-mode-abbrev-table ())
+ (define-abbrev f90-mode-abbrev-table "`al" "allocate" nil)
+ (define-abbrev f90-mode-abbrev-table "`ab" "allocateable" nil)
+ (define-abbrev f90-mode-abbrev-table "`as" "assignment" nil)
+ (define-abbrev f90-mode-abbrev-table "`ba" "backspace" nil)
+ (define-abbrev f90-mode-abbrev-table "`bd" "block data" nil)
+ (define-abbrev f90-mode-abbrev-table "`c" "character" nil)
+ (define-abbrev f90-mode-abbrev-table "`cl" "close" nil)
+ (define-abbrev f90-mode-abbrev-table "`cm" "common" nil)
+ (define-abbrev f90-mode-abbrev-table "`cx" "complex" nil)
+ (define-abbrev f90-mode-abbrev-table "`cn" "contains" nil)
+ (define-abbrev f90-mode-abbrev-table "`cy" "cycle" nil)
+ (define-abbrev f90-mode-abbrev-table "`de" "deallocate" nil)
+ (define-abbrev f90-mode-abbrev-table "`df" "define" nil)
+ (define-abbrev f90-mode-abbrev-table "`di" "dimension" nil)
+ (define-abbrev f90-mode-abbrev-table "`dw" "do while" nil)
+ (define-abbrev f90-mode-abbrev-table "`el" "else" nil)
+ (define-abbrev f90-mode-abbrev-table "`eli" "else if" nil)
+ (define-abbrev f90-mode-abbrev-table "`elw" "elsewhere" nil)
+ (define-abbrev f90-mode-abbrev-table "`eq" "equivalence" nil)
+ (define-abbrev f90-mode-abbrev-table "`ex" "external" nil)
+ (define-abbrev f90-mode-abbrev-table "`ey" "entry" nil)
+ (define-abbrev f90-mode-abbrev-table "`fl" "forall" nil)
+ (define-abbrev f90-mode-abbrev-table "`fo" "format" nil)
+ (define-abbrev f90-mode-abbrev-table "`fu" "function" nil)
+ (define-abbrev f90-mode-abbrev-table "`fa" ".false." nil)
+ (define-abbrev f90-mode-abbrev-table "`im" "implicit none" nil)
+ (define-abbrev f90-mode-abbrev-table "`in " "include" nil)
+ (define-abbrev f90-mode-abbrev-table "`i" "integer" nil)
+ (define-abbrev f90-mode-abbrev-table "`it" "intent" nil)
+ (define-abbrev f90-mode-abbrev-table "`if" "interface" nil)
+ (define-abbrev f90-mode-abbrev-table "`lo" "logical" nil)
+ (define-abbrev f90-mode-abbrev-table "`mo" "module" nil)
+ (define-abbrev f90-mode-abbrev-table "`na" "namelist" nil)
+ (define-abbrev f90-mode-abbrev-table "`nu" "nullify" nil)
+ (define-abbrev f90-mode-abbrev-table "`op" "optional" nil)
+ (define-abbrev f90-mode-abbrev-table "`pa" "parameter" nil)
+ (define-abbrev f90-mode-abbrev-table "`po" "pointer" nil)
+ (define-abbrev f90-mode-abbrev-table "`pr" "print" nil)
+ (define-abbrev f90-mode-abbrev-table "`pi" "private" nil)
+ (define-abbrev f90-mode-abbrev-table "`pm" "program" nil)
+ (define-abbrev f90-mode-abbrev-table "`pu" "public" nil)
+ (define-abbrev f90-mode-abbrev-table "`r" "real" nil)
+ (define-abbrev f90-mode-abbrev-table "`rc" "recursive" nil)
+ (define-abbrev f90-mode-abbrev-table "`rt" "return" nil)
+ (define-abbrev f90-mode-abbrev-table "`rw" "rewind" nil)
+ (define-abbrev f90-mode-abbrev-table "`se" "select" nil)
+ (define-abbrev f90-mode-abbrev-table "`sq" "sequence" nil)
+ (define-abbrev f90-mode-abbrev-table "`su" "subroutine" nil)
+ (define-abbrev f90-mode-abbrev-table "`ta" "target" nil)
+ (define-abbrev f90-mode-abbrev-table "`tr" ".true." nil)
+ (define-abbrev f90-mode-abbrev-table "`t" "type" nil)
+ (define-abbrev f90-mode-abbrev-table "`wh" "where" nil)
+ (define-abbrev f90-mode-abbrev-table "`wr" "write" nil)
+ (setq abbrevs-changed ac)))
+\f
+;;;###autoload
+(defun f90-mode ()
+ "Major mode for editing Fortran 90 code in free format.
+
+\\[f90-indent-new-line] corrects current indentation and creates new\
+ indented line.
+\\[f90-indent-line] indents the current line correctly.
+\\[f90-indent-subprogram] indents the current subprogram.
+
+Type `? or `\\[help-command] to display a list of built-in\
+ abbrevs for F90 keywords.
+
+Key definitions:
+\\{f90-mode-map}
+
+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 case/where/forall blocks. (default 3)
+ f90-type-indent
+ Extra indentation within type/interface/block-data blocks. (default 3)
+ f90-program-indent
+ Extra indentation within program/module/subroutine/function blocks.
+ (default 2)
+ f90-continuation-indent
+ Extra indentation applied to continuation lines. (default 5)
+ f90-comment-region
+ String inserted by \\[f90-comment-region] at start of each line in
+ region. (default \"!!!$\")
+ f90-indented-comment
+ String holding the type of comment to be intended like code.
+ This is a regular expression. (default \"!\")
+ f90-directive-comment
+ String of comment-like directive like \"!HPF$\", not to be indented.
+ (default nil)
+ 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-auto-hilit19 (default nil)
+ Automatic highlighting (if hilit19 is used) at every indent or newline.
+ f90-leave-line-no
+ Do not left-justify line numbers. (default nil)
+ f90-startup-message
+ Set to nil to inhibit message first time F90 mode is used. (default t)
+ f90-keywords
+ List of keywords used for highlighting/upcase-keywords etc.
+
+Turning on F90 mode calls the value of the variable `f90-mode-hook'
+with no args, if that value is non-nil."
+ (interactive)
+ (kill-all-local-variables)
+ (setq major-mode 'f90-mode)
+ (setq mode-name "F90")
+ (setq local-abbrev-table f90-mode-abbrev-table)
+ (set-syntax-table f90-mode-syntax-table)
+ (use-local-map f90-mode-map)
+ (make-local-variable 'indent-line-function)
+ (setq indent-line-function 'f90-indent-line)
+ (make-local-variable 'indent-region-function)
+ (setq indent-region-function 'f90-indent-region)
+ (make-local-variable 'require-final-newline)
+ (setq require-final-newline t)
+ (make-local-variable 'comment-start)
+ (setq comment-start "!")
+ (make-local-variable 'comment-start-skip)
+ (setq comment-start-skip "!+ *")
+ (make-local-variable 'comment-indent-function)
+ (setq comment-indent-function 'f90-comment-indent)
+ (make-local-variable 'abbrev-all-caps)
+ (setq abbrev-all-caps t)
+ ;; Setting up things for font-lock
+ (if (string-match "Lucid" emacs-version)
+ (put 'f90-mode 'font-lock-keywords-case-fold-search t)
+ ;; (make-local-variable 'font-lock-keywords) ; for FSF version <= 19.28
+ ;; (setq font-lock-keywords f90-font-lock-keywords)
+ (make-local-variable 'font-lock-defaults) ; for FSF version > 19.28
+ (setq font-lock-defaults '(f90-font-lock-keywords t))
+ )
+ (make-local-variable 'font-lock-keywords-case-fold-search)
+ (setq font-lock-keywords-case-fold-search t)
+ (run-hooks 'f90-mode-hook)
+ (if f90-startup-message
+ (message "Emacs F90 mode %s. Bugs to %s" f90-mode-version bug-f90-mode))
+ (setq f90-startup-message nil))
+\f
+;; inline-functions
+(defsubst f90-get-beg-of-line ()
+ (save-excursion (beginning-of-line) (point)))
+
+(defsubst f90-get-end-of-line ()
+ (save-excursion (end-of-line) (point)))
+
+(defsubst f90-in-string ()
+ (let ((beg-pnt
+ (if (and f90-cache-position (> (point) f90-cache-position))
+ f90-cache-position
+ (point-min))))
+ (nth 3 (parse-partial-sexp beg-pnt (point)))))
+
+(defsubst f90-in-comment ()
+ (let ((beg-pnt
+ (if (and f90-cache-position (> (point) f90-cache-position))
+ f90-cache-position
+ (point-min))))
+ (nth 4 (parse-partial-sexp beg-pnt (point)))))
+
+(defsubst f90-line-continued ()
+ (save-excursion
+ (let ((bol (f90-get-beg-of-line)))
+ (end-of-line)
+ (while (f90-in-comment)
+ (search-backward "!" bol)
+ (skip-chars-backward "!"))
+ (skip-chars-backward " \t")
+ (= (preceding-char) ?&))))
+
+(defsubst f90-current-indentation ()
+ "Return indentation of current line.
+Line-numbers are considered whitespace characters."
+ (save-excursion
+ (beginning-of-line) (skip-chars-forward " \t0-9")
+ (current-column)))
+
+(defsubst f90-indent-to (col &optional no-line-number)
+ "Indent current line to column COL.
+If no-line-number nil, jump over a possible line-number."
+ (beginning-of-line)
+ (if (not no-line-number)
+ (skip-chars-forward " \t0-9"))
+ (delete-horizontal-space)
+ (if (zerop (current-column))
+ (indent-to col)
+ (indent-to col 1)))
+
+(defsubst f90-match-piece (arg)
+ (if (match-beginning arg)
+ (buffer-substring (match-beginning arg) (match-end arg))))
+
+(defsubst f90-get-present-comment-type ()
+ (save-excursion
+ (let ((type nil) (eol (f90-get-end-of-line)))
+ (if (f90-in-comment)
+ (progn
+ (beginning-of-line)
+ (re-search-forward "[!]+" eol)
+ (while (f90-in-string)
+ (re-search-forward "[!]+" eol))
+ (setq type (buffer-substring (match-beginning 0) (match-end 0)))))
+ type)))
+
+(defsubst f90-equal-symbols (a b)
+ "Compare strings neglecting case and allowing for nil value."
+ (let ((a-local (if a (downcase a) nil))
+ (b-local (if b (downcase b) nil)))
+ (equal a-local b-local)))
+
+;; There seems to be a bug in XEmacs matching of regular expressions.
+;; One cannot extract the label directly for do,if, and select case.
+;; Therefore, the following functions are longer than necessary.
+
+(defsubst f90-looking-at-do ()
+ "Return (\"do\" name) if a do statement starts after point.
+Name is nil if the statement has no label."
+ (let (struct (label nil))
+ (if (looking-at (concat "\\(\\(" f90-symbol-re "\\)[ \t]*\:\\)?"
+ "[ \t]*\\(do\\)\\b"))
+ (progn
+ (setq struct (f90-match-piece 3))
+ (if (looking-at (concat "\\(" f90-symbol-re "\\)[ \t]*\:"))
+ (setq label (f90-match-piece 1)))
+ (list struct label)))))
+
+(defsubst f90-looking-at-if-then ()
+ "Return (\"if\" name) if an if () then statement starts after point.
+Name is nil if the statement has no label."
+ (save-excursion
+ (let (struct (label nil))
+ (if (looking-at (concat "\\(\\(" f90-symbol-re "\\)[ \t]*\:\\)?"
+ "[ \t]*\\(if\\)\\b"))
+ (progn
+ (setq struct (f90-match-piece 3))
+ (if (looking-at (concat "\\(" f90-symbol-re "\\)[ \t]*\:"))
+ (setq label (f90-match-piece 1)))
+ (goto-char (scan-lists (point) 1 0))
+ (skip-chars-forward " \t")
+ (if (or (looking-at "then\\b")
+ (if (f90-line-continued)
+ (progn
+ (f90-next-statement)
+ (skip-chars-forward " \t0-9&")
+ (looking-at "then\\b"))))
+ (list struct label)))))))
+
+(defsubst f90-looking-at-select-case ()
+ "Return (\"select\" name) if a select-case statement starts after point.
+Name is nil if the statement has no label."
+ (let (struct (label nil))
+ (if (looking-at (concat "\\(\\(" f90-symbol-re "\\)[ \t]*\:\\)?"
+ "[ \t]*\\(select\\)[ \t]*case[ \t]*("))
+ (progn
+ (setq struct (f90-match-piece 3))
+ (if (looking-at (concat "\\(" f90-symbol-re "\\)[ \t]*\:"))
+ (setq label (f90-match-piece 1)))
+ (list struct label)))))
+
+(defsubst f90-looking-at-where-or-forall ()
+ "Return (kind nil) if where/forall...end starts after point."
+ (save-excursion
+ (let (command)
+ (if (looking-at "\\(where\\|forall\\)[ \t]*(")
+ (progn
+ (setq command (list (f90-match-piece 1) nil))
+ (goto-char (scan-lists (point) 1 0))
+ (skip-chars-forward " \t")
+ (if (looking-at "\\(!\\|$\\)")
+ command))))))
+
+(defsubst f90-looking-at-type-like ()
+ "Return (kind name) at the start of a type/interface/block-data block.
+Name is non-nil only for type."
+ (cond
+ ((looking-at (concat "\\(type\\)[ \t]+\\(" f90-symbol-re "\\)\\>"))
+ (list (f90-match-piece 1) (f90-match-piece 2)))
+ ((looking-at "\\(interface\\)\\>")
+ (list (f90-match-piece 1) nil))
+ ((looking-at "\\(block[ \t]*data\\)\\>")
+ (list (f90-match-piece 1) nil))))
+
+(defsubst f90-looking-at-program-block-start ()
+ "Return (kind name) if a program block with name name starts after point."
+ (cond
+ ((looking-at (concat "\\(program\\)[ \t]+\\(" f90-symbol-re "\\)\\b"))
+ (list (f90-match-piece 1) (f90-match-piece 2)))
+ ((and (not (looking-at "module[ \t]*procedure\\>"))
+ (looking-at (concat "\\(module\\)[ \t]+\\("
+ f90-symbol-re "\\)\\b")))
+ (list (f90-match-piece 1) (f90-match-piece 2)))
+ ((looking-at (concat "\\(recursive[ \t]*\\)?\\(subroutine\\)[ \t]+\\("
+ f90-symbol-re "\\)"))
+ (list (f90-match-piece 2) (f90-match-piece 3)))
+ ((looking-at (concat "[a-z0-9()_ \t]*\\(function\\)[ \t]+\\("
+ f90-symbol-re "\\)[ \t]*("))
+ (list (f90-match-piece 1) (f90-match-piece 2)))))
+
+(defsubst f90-looking-at-program-block-end ()
+ "Return list of type and name of end of block."
+ (if (looking-at (concat "end[ \t]*" f90-blocks-re "?\\([ \t]+\\("
+ f90-symbol-re "\\)\\)?\\>"))
+ (list (f90-match-piece 1) (f90-match-piece 3))))
+
+(defsubst f90-comment-indent ()
+ (cond ((looking-at "!!!") 0)
+ ((and f90-directive-comment
+ (looking-at (regexp-quote f90-directive-comment))) 0)
+ ((looking-at (regexp-quote f90-comment-region)) 0)
+ ((looking-at f90-indented-comment)
+ (f90-calculate-indent))
+ (t (skip-chars-backward " \t")
+ (max (if (bolp) 0 (1+ (current-column))) comment-column))))
+
+(defsubst f90-present-statement-cont ()
+ "Return continuation properties of present statement."
+ (let (pcont cont)
+ (save-excursion
+ (setq pcont (if (f90-previous-statement) (f90-line-continued) nil)))
+ (setq cont (f90-line-continued))
+ (cond ((and (not pcont) (not cont)) 'single)
+ ((and (not pcont) cont) 'begin)
+ ((and pcont (not cont)) 'end)
+ ((and pcont cont) 'middle)
+ (t (error)))))
+
+(defsubst f90-indent-line-no ()
+ (if f90-leave-line-no
+ ()
+ (if (and (not (zerop (skip-chars-forward " \t")))
+ (looking-at "[0-9]"))
+ (delete-horizontal-space)))
+ (skip-chars-forward " \t0-9"))
+
+(defsubst f90-no-block-limit ()
+ (let ((eol (f90-get-end-of-line)))
+ (save-excursion
+ (not (or (looking-at "end")
+ (looking-at "\\(do\\|if\\|else\\|select[ \t]*case\\|\
+case\\|where\\|forall\\)\\>")
+ (looking-at "\\(program\\|module\\|interface\\|\
+block[ \t]*data\\)\\>")
+ (looking-at "\\(contains\\|continue\\|\\sw+[ \t]*:\\)")
+ (looking-at "type[ \t]+\\sw+")
+ (re-search-forward "\\(function\\|subroutine\\)" eol t))))))
+
+(defsubst f90-update-line ()
+ (let (bol eol)
+ (if (or f90-auto-keyword-case f90-auto-hilit19)
+ (progn (setq bol (f90-get-beg-of-line)
+ eol (f90-get-end-of-line))
+ (if f90-auto-keyword-case
+ (f90-change-keywords f90-auto-keyword-case bol eol))
+ (if (and f90-auto-hilit19 (fboundp 'hilit-rehighlight-region))
+ (hilit-rehighlight-region bol eol t))))))
+\f
+(defun f90-get-correct-indent ()
+ "Get correct indent for a line starting with line number.
+Does not check type and subprogram indentation."
+ (let ((epnt (f90-get-end-of-line)) icol cont)
+ (save-excursion
+ (while (and (f90-previous-statement)
+ (or (progn
+ (setq cont (f90-present-statement-cont))
+ (or (eq cont 'end) (eq cont 'middle)))
+ (looking-at "[ \t]*[0-9]"))))
+ (setq icol (current-indentation))
+ (beginning-of-line)
+ (if (re-search-forward "\\(if\\|do\\|select\\|where\\|forall\\)"
+ (f90-get-end-of-line) t)
+ (progn
+ (beginning-of-line) (skip-chars-forward " \t")
+ (cond ((f90-looking-at-do)
+ (setq icol (+ icol f90-do-indent)))
+ ((or (f90-looking-at-if-then)
+ (f90-looking-at-where-or-forall)
+ (f90-looking-at-select-case))
+ (setq icol (+ icol f90-if-indent))))
+ (end-of-line)))
+ (while (re-search-forward
+ "\\(if\\|do\\|select\\|where\\|forall\\|continue\\)" epnt t)
+ (beginning-of-line) (skip-chars-forward " \t0-9")
+ (cond ((f90-looking-at-do)
+ (setq icol (+ icol f90-do-indent)))
+ ((or (f90-looking-at-if-then)
+ (f90-looking-at-where-or-forall)
+ (f90-looking-at-select-case))
+ (setq icol (+ icol f90-if-indent)))
+ ((looking-at f90-end-if-re)
+ (setq icol (- icol f90-if-indent)))
+ ((looking-at "\\(end[ \t]*do\\|continue\\)\\>")
+ (setq icol (- icol f90-do-indent))))
+ (end-of-line))
+ icol)))
+
+
+(defun f90-calculate-indent ()
+ "Calculate the indent column based on previous statements."
+ (interactive)
+ (let (icol cont (case-fold-search t) (pnt (point)))
+ (save-excursion
+ (if (not (f90-previous-statement))
+ (setq icol 0)
+ (setq cont (f90-present-statement-cont))
+ (if (eq cont 'end)
+ (while (not (eq 'begin (f90-present-statement-cont)))
+ (f90-previous-statement)))
+ (cond ((eq cont 'begin)
+ (setq icol (+ (f90-current-indentation)
+ f90-continuation-indent)))
+ ((eq cont 'middle) (setq icol(current-indentation)))
+ (t (setq icol (f90-current-indentation))
+ (skip-chars-forward " \t")
+ (if (looking-at "[0-9]")
+ (setq icol (f90-get-correct-indent))
+ (cond ((or (f90-looking-at-if-then)
+ (f90-looking-at-where-or-forall)
+ (f90-looking-at-select-case)
+ (looking-at f90-else-like-re))
+ (setq icol (+ icol f90-if-indent)))
+ ((f90-looking-at-do)
+ (setq icol (+ icol f90-do-indent)))
+ ((f90-looking-at-type-like)
+ (setq icol (+ icol f90-type-indent)))
+ ((or (f90-looking-at-program-block-start)
+ (looking-at "contains[ \t]*\\($\\|!\\)"))
+ (setq icol (+ icol f90-program-indent)))))
+ (goto-char pnt)
+ (beginning-of-line)
+ (cond ((looking-at "[ \t]*$"))
+ ((looking-at "[ \t]*#") ; Check for cpp directive.
+ (setq icol 0))
+ (t
+ (skip-chars-forward " \t0-9")
+ (cond ((or (looking-at f90-else-like-re)
+ (looking-at f90-end-if-re))
+ (setq icol (- icol f90-if-indent)))
+ ((looking-at "\\(end[ \t]*do\\|continue\\)\\>")
+ (setq icol (- icol f90-do-indent)))
+ ((looking-at f90-end-type-re)
+ (setq icol (- icol f90-type-indent)))
+ ((or (looking-at "contains[ \t]*\\(!\\|$\\)")
+ (f90-looking-at-program-block-end))
+ (setq icol (- icol f90-program-indent))))))
+ ))))
+ icol))
+\f
+;; Statement = statement line, a line which is neither blank, nor a comment.
+(defun f90-previous-statement ()
+ "Move point to beginning of the previous F90 statement.
+Return nil if no previous statement is found."
+ (interactive)
+ (let (not-first-statement)
+ (beginning-of-line)
+ (while (and (setq not-first-statement (zerop (forward-line -1)))
+ (looking-at "[ \t0-9]*\\(!\\|$\\)")))
+ not-first-statement))
+
+(defun f90-next-statement ()
+ "Move point to beginning of the next F90 statement.
+Return nil if no later statement is found."
+ (interactive)
+ (let (not-last-statement)
+ (beginning-of-line)
+ (while (and (setq not-last-statement
+ (and (zerop (forward-line 1))
+ (not (eobp))))
+ (looking-at "[ \t0-9]*\\(!\\|$\\)")))
+ not-last-statement))
+
+(defun f90-beginning-of-subprogram ()
+ "Move point to the beginning of subprogram.
+Return (type name) or nil if not found."
+ (interactive)
+ (let ((count 1) (case-fold-search t) matching-beg)
+ (beginning-of-line) (skip-chars-forward " \t0-9")
+ (if (setq matching-beg (f90-looking-at-program-block-start))
+ (setq count (- count 1)))
+ (while (and (not (zerop count))
+ (re-search-backward f90-program-block-re nil 'move))
+ (beginning-of-line) (skip-chars-forward " \t0-9")
+ (cond
+ ((setq matching-beg (f90-looking-at-program-block-start))
+ (setq count (- count 1)))
+ ((f90-looking-at-program-block-end)
+ (setq count (+ count 1)))))
+ (beginning-of-line)
+ (if (zerop count)
+ matching-beg
+ (message "No beginning-found.")
+ nil)))
+
+(defun f90-end-of-subprogram ()
+ "Move point to the end of subprogram.
+Return (type name) or nil if not found."
+ (interactive)
+ (let ((count 1) (case-fold-search t) matching-end)
+ (beginning-of-line) (skip-chars-forward " \t0-9")
+ (if (setq matching-end (f90-looking-at-program-block-end))
+ (setq count (1- count)))
+ (end-of-line)
+ (while (and (not (zerop count))
+ (re-search-forward f90-program-block-re nil 'move))
+ (beginning-of-line) (skip-chars-forward " \t0-9")
+ (cond ((f90-looking-at-program-block-start)
+ (setq count (+ count 1)))
+ ((setq matching-end (f90-looking-at-program-block-end))
+ (setq count (1- count ))))
+ (end-of-line))
+ (forward-line 1)
+ (if (zerop count)
+ matching-end
+ (message "No end found.")
+ nil)))
+
+(defun f90-mark-subprogram ()
+ "Put mark at end of F90 subprogram, point at beginning.
+Marks are pushed and highlight (grey shadow) is turned on."
+ (interactive)
+ (let ((pos (point)) program)
+ (f90-end-of-subprogram)
+ (push-mark (point) t)
+ (goto-char pos)
+ (setq program (f90-beginning-of-subprogram))
+ ;; The keywords in the preceding lists assume case-insensitivity.
+ (if (string-match "Lucid" emacs-version)
+ (zmacs-activate-region)
+ (setq mark-active t)
+ (setq deactivate-mark nil))
+ program))
+
+(defun f90-comment-region (beg-region end-region)
+ "Comment/uncomment every line in the region.
+Insert f90-comment-region at the beginning of every line in the region
+or, if already present, remove it."
+ (interactive "*r")
+ (let ((end (make-marker)))
+ (set-marker end end-region)
+ (goto-char beg-region)
+ (beginning-of-line)
+ (if (looking-at (regexp-quote f90-comment-region))
+ (delete-region (point) (match-end 0))
+ (insert f90-comment-region))
+ (while (and (zerop (forward-line 1))
+ (< (point) (marker-position end)))
+ (if (looking-at (regexp-quote f90-comment-region))
+ (delete-region (point) (match-end 0))
+ (insert f90-comment-region)))
+ (set-marker end nil)))
+
+(defun f90-indent-line (&optional no-update)
+ "Indent current line as F90 code."
+ (interactive)
+ (let (indent (no-line-number nil) (pos (make-marker)) (case-fold-search t))
+ (set-marker pos (point))
+ (beginning-of-line) ; Digits after & \n are not line-no
+ (if (save-excursion (and (f90-previous-statement) (f90-line-continued)))
+ (progn (setq no-line-number t) (skip-chars-forward " \t"))
+ (f90-indent-line-no))
+ (if (looking-at "!")
+ (setq indent (f90-comment-indent))
+ (if (and (looking-at "end") f90-smart-end) (f90-match-end))
+ (setq indent (f90-calculate-indent)))
+ (if (zerop (- indent (current-column)))
+ nil
+ (f90-indent-to indent no-line-number))
+ ;; If initial point was within line's indentation,
+ ;; position after the indentation. Else stay at same point in text.
+ (if (< (point) (marker-position pos))
+ (goto-char (marker-position pos)))
+ (if (not no-update) (f90-update-line))
+ (if (and auto-fill-function
+ (> (save-excursion (end-of-line) (current-column)) fill-column))
+ (save-excursion (f90-do-auto-fill)))
+ (set-marker pos nil)))
+
+(defun f90-indent-new-line ()
+ "Reindent the current F90 line, insert a newline and indent the newline.
+An abbrev before point is expanded if `abbrev-mode' is non-nil.
+If run in the middle of a line, the line is not broken."
+ (interactive)
+ (let (string cont (case-fold-search t))
+ (if abbrev-mode (expand-abbrev))
+ (beginning-of-line) ; Reindent where likely to be needed.
+ (f90-indent-line-no)
+ (if (or (looking-at "\\(end\\|else\\|!\\)"))
+ (f90-indent-line 'no-update))
+ (end-of-line)
+ (delete-horizontal-space) ;Destroy trailing whitespace
+ (setq string (f90-in-string))
+ (setq cont (f90-line-continued))
+ (if (and string (not cont)) (insert "&"))
+ (f90-update-line)
+ (newline)
+ (if (or string (and cont f90-beginning-ampersand)) (insert "&"))
+ (f90-indent-line 'no-update)))
+
+
+(defun f90-indent-region (beg-region end-region)
+ "Indent every line in region by forward parsing."
+ (interactive "*r")
+ (let ((end-region-mark (make-marker)) (save-point (point-marker))
+ (block-list nil) ind-lev ind-curr ind-b cont
+ struct beg-struct end-struct)
+ (set-marker end-region-mark end-region)
+ (goto-char beg-region)
+ ;; first find a line which is not a continuation line or comment
+ (beginning-of-line)
+ (while (and (looking-at "[ \t]*[0-9]*\\(!\\|[ \t]*$\\)")
+ (progn (f90-indent-line 'no-update)
+ (zerop (forward-line 1)))
+ (< (point) end-region-mark)))
+ (setq cont (f90-present-statement-cont))
+ (while (and (or (eq cont 'middle) (eq cont 'end))
+ (f90-previous-statement))
+ (setq cont (f90-present-statement-cont)))
+ ;; process present line for beginning of block
+ (setq f90-cache-position (point))
+ (f90-indent-line 'no-update)
+ (setq ind-lev (f90-current-indentation))
+ (setq ind-curr ind-lev)
+ (beginning-of-line) (skip-chars-forward " \t0-9")
+ (setq struct nil)
+ (setq ind-b (cond ((setq struct (f90-looking-at-do)) f90-do-indent)
+ ((or (setq struct (f90-looking-at-if-then))
+ (setq struct (f90-looking-at-select-case))
+ (setq struct (f90-looking-at-where-or-forall))
+ (looking-at f90-else-like-re))
+ f90-if-indent)
+ ((setq struct (f90-looking-at-type-like))
+ f90-type-indent)
+ ((or(setq struct (f90-looking-at-program-block-start))
+ (looking-at "contains[ \t]*\\($\\|!\\)"))
+ f90-program-indent)))
+ (if ind-b (setq ind-lev (+ ind-lev ind-b)))
+ (if struct (setq block-list (cons struct block-list)))
+ (while (and (f90-line-continued) (zerop (forward-line 1))
+ (< (point) end-region-mark))
+ (if (not (zerop (- (current-indentation)
+ (+ ind-curr f90-continuation-indent))))
+ (f90-indent-to (+ ind-curr f90-continuation-indent) 'no-line-no)))
+ ;; process all following lines
+ (while (and (zerop (forward-line 1)) (< (point) end-region-mark))
+ (beginning-of-line)
+ (f90-indent-line-no)
+ (setq f90-cache-position (point))
+ (cond ((looking-at "[ \t]*$") (setq ind-curr 0))
+ ((looking-at "[ \t]*#") (setq ind-curr 0))
+ ((looking-at "!") (setq ind-curr (f90-comment-indent)))
+ ((f90-no-block-limit) (setq ind-curr ind-lev))
+ ((looking-at f90-else-like-re) (setq ind-curr
+ (- ind-lev f90-if-indent)))
+ ((looking-at "contains[ \t]*\\($\\|!\\)")
+ (setq ind-curr (- ind-lev f90-program-indent)))
+ ((setq ind-b
+ (cond ((setq struct (f90-looking-at-do)) f90-do-indent)
+ ((or (setq struct (f90-looking-at-if-then))
+ (setq struct (f90-looking-at-select-case))
+ (setq struct (f90-looking-at-where-or-forall)))
+ f90-if-indent)
+ ((setq struct (f90-looking-at-type-like))
+ f90-type-indent)
+ ((setq struct (f90-looking-at-program-block-start))
+ f90-program-indent)))
+ (setq ind-curr ind-lev)
+ (if ind-b (setq ind-lev (+ ind-lev ind-b)))
+ (setq block-list (cons struct block-list)))
+ ((setq end-struct (f90-looking-at-program-block-end))
+ (setq beg-struct (car block-list)
+ block-list (cdr block-list))
+ (if f90-smart-end
+ (save-excursion
+ (f90-block-match (car beg-struct)(car (cdr beg-struct))
+ (car end-struct)(car (cdr end-struct)))))
+ (setq ind-b
+ (cond ((looking-at f90-end-if-re) f90-if-indent)
+ ((looking-at "end[ \t]*do\\>") f90-do-indent)
+ ((looking-at f90-end-type-re) f90-type-indent)
+ ((f90-looking-at-program-block-end)
+ f90-program-indent)))
+ (if ind-b (setq ind-lev (- ind-lev ind-b)))
+ (setq ind-curr ind-lev))
+ ((looking-at "continue\\>")
+ (setq ind-lev (- ind-lev f90-do-indent))
+ (setq ind-curr ind-lev)
+ (setq block-list (cdr block-list)))
+ (t (setq ind-curr ind-lev)))
+ ;; do the indentation if necessary
+ (if (not (zerop (- ind-curr (current-column))))
+ (f90-indent-to ind-curr))
+ (while (and (f90-line-continued) (zerop (forward-line 1))
+ (< (point) end-region-mark))
+ (if (not (zerop (- (current-indentation)
+ (+ ind-curr f90-continuation-indent))))
+ (f90-indent-to (+ ind-curr f90-continuation-indent) 'no-line-no))))
+ ;; restore point etc
+ (setq f90-cache-position nil)
+ (goto-char save-point)
+ (set-marker end-region-mark nil)
+ (set-marker save-point nil)
+ (if (string-match "Lucid" emacs-version)
+ (zmacs-deactivate-region)
+ (deactivate-mark))))
+
+(defun f90-indent-subprogram ()
+ "Properly indent the subprogram which contains point."
+ (interactive)
+ (save-excursion
+ (let (program)
+ (setq program (f90-mark-subprogram))
+ (if program
+ (progn
+ (message (concat "Indenting " (car program) " "
+ (car (cdr program))"."))
+ (f90-indent-region (point) (mark))
+ (message (concat "Indenting " (car program) " "
+ (car (cdr program)) "...done.")))
+ (message "Indenting the whole file.")
+ (f90-indent-region (point) (mark))
+ (message (concat "Indenting the whole file...done."))))))
+
+;; autofill and break-line
+(defun f90-break-line (&optional no-update)
+ "Break line at point, insert continuation marker(s) and indent."
+ (interactive)
+ (let (ctype)
+ (cond ((f90-in-string)
+ (insert "&") (newline) (insert "&"))
+ ((f90-in-comment)
+ (delete-horizontal-space)
+ (setq ctype (f90-get-present-comment-type))
+ (newline) (insert (concat ctype " ")))
+ (t (delete-horizontal-space)
+ (insert "&")
+ (if (not no-update) (f90-update-line))
+ (newline)
+ (if f90-beginning-ampersand (insert "& ")))))
+ (if (not no-update) (f90-indent-line)))
+
+(defun f90-find-breakpoint ()
+ "From fill-column, search backward for break-delimiter."
+ (let ((bol (f90-get-beg-of-line)))
+ (re-search-backward f90-break-delimiters bol)
+ (if f90-break-before-delimiters
+ (progn (backward-char)
+ (if (not (looking-at f90-no-break-re))
+ (forward-char)))
+ (if (looking-at f90-no-break-re)
+ (forward-char 2)
+ (forward-char)))))
+
+(defun f90-auto-fill-mode (arg)
+ "Toggle f90-auto-fill mode.
+With ARG, turn `f90-auto-fill' mode on iff ARG is positive.
+In `f90-auto-fill' mode, inserting a space at a column beyond `fill-column'
+automatically breaks the line at a previous space."
+ (interactive "P")
+ (prog1 (setq auto-fill-function
+ (if (if (null arg)
+ (not auto-fill-function)
+ (> (prefix-numeric-value arg) 0))
+ 'f90-do-auto-fill))
+ ;; update mode-line
+ (set-buffer-modified-p (buffer-modified-p))))
+
+(defun f90-do-auto-fill ()
+ "Break line if non-white characters beyond fill-column."
+ (interactive)
+ ;; Break the line before or after the last delimiter (non-word char).
+ ;; Will not break **, //, or => (specified by f90-no-break-re).
+ (move-to-column fill-column)
+ (if (and (looking-at "[ \t]*$") (not (f90-in-string)))
+ (delete-horizontal-space)
+ (f90-find-breakpoint)
+ (f90-break-line)
+ (end-of-line)))
+
+(defun f90-join-lines ()
+ "Join present line with next line, if this line ends with \&."
+ (interactive)
+ (let (pos (oldpos (point)))
+ (end-of-line)
+ (skip-chars-backward " \t")
+ (cond ((= (preceding-char) ?&)
+ (delete-char -1)
+ (setq pos (point))
+ (forward-line 1)
+ (skip-chars-forward " \t")
+ (if (looking-at "\&") (delete-char 1))
+ (delete-region pos (point))
+ (if (not (f90-in-string))
+ (progn (delete-horizontal-space) (insert " ")))
+ (if (and auto-fill-function
+ (> (save-excursion (end-of-line)
+ (current-column))
+ fill-column))
+ (f90-do-auto-fill))
+ (goto-char oldpos)
+ t))))
+
+(defun f90-fill-region (beg-region end-region)
+ "Fill every line in region by forward parsing. Join lines if possible."
+ (interactive "*r")
+ (let ((end-region-mark (make-marker))
+ (f90-smart-end nil) (f90-auto-keyword-case nil)
+ (f90-auto-hilit19 nil) indent (go-on t)
+ (af-function auto-fill-function) (auto-fill-function nil))
+ (set-marker end-region-mark end-region)
+ (goto-char beg-region)
+ (while go-on
+ ;; join as much as possible
+ (while (f90-join-lines));
+ (setq indent (+ (f90-current-indentation) f90-continuation-indent))
+ ;; chop the line if necessary
+ (while (> (save-excursion (end-of-line) (current-column))
+ fill-column)
+ (move-to-column fill-column)
+ (if (and (looking-at "[ \t]*$") (not (f90-in-string)))
+ (delete-horizontal-space)
+ (f90-find-breakpoint)
+ (f90-break-line 'no-update)
+ (f90-indent-to indent 'no-line-no)))
+ (setq go-on (and (< (point) (marker-position end-region-mark))
+ (zerop (forward-line 1))))
+ (setq f90-cache-position (point)))
+ (setq auto-fill-function af-function)
+ (setq f90-cache-position nil)
+ (if (string-match "Lucid" emacs-version)
+ (zmacs-deactivate-region)
+ (deactivate-mark))))
+\f
+(defun f90-block-match (beg-block beg-name end-block end-name)
+ "Match end-struct with beg-struct and complete end-block if possible.
+Leave point at the end of line."
+ (search-forward "end" (f90-get-end-of-line))
+ (catch 'no-match
+ (if (not (f90-equal-symbols beg-block end-block))
+ (if end-block
+ (progn
+ (message "END %s does not match %s." end-block beg-block)
+ (end-of-line)
+ (throw 'no-match nil))
+ (message "Inserting %s." beg-block)
+ (insert (concat " " beg-block)))
+ (search-forward end-block))
+ (if (not (f90-equal-symbols beg-name end-name))
+ (cond ((and beg-name (not end-name))
+ (message "Inserting %s." beg-name)
+ (insert (concat " " beg-name)))
+ ((and beg-name end-name)
+ (message "Replacing %s with %s." end-name beg-name)
+ (search-forward end-name)
+ (replace-match beg-name))
+ ((and (not beg-name) end-name)
+ (message "Deleting %s." end-name)
+ (search-forward end-name)
+ (replace-match "")))
+ (if end-name (search-forward end-name)))
+ (if (not (looking-at "!")) (delete-horizontal-space))))
+
+(defun f90-match-end ()
+ "From an end foo statement, find the corresponding foo including name."
+ (interactive)
+ (let ((count 1) (top-of-window (window-start)) (matching-beg nil)
+ (end-point (point)) (case-fold-search t)
+ beg-name end-name beg-block end-block end-struct)
+ (if (save-excursion (beginning-of-line) (skip-chars-forward " \t0-9")
+ (setq end-struct (f90-looking-at-program-block-end)))
+ (progn
+ (setq end-block (car end-struct))
+ (setq end-name (car (cdr end-struct)))
+ (save-excursion
+ (beginning-of-line)
+ (while (and (not (zerop count))
+ (re-search-backward
+ (concat "\\(" f90-blocks-re "\\|continue\\)") nil t))
+ (beginning-of-line) (skip-chars-forward " \t0-9")
+ (cond ((setq matching-beg
+ (cond
+ ((f90-looking-at-do))
+ ((f90-looking-at-if-then))
+ ((f90-looking-at-where-or-forall))
+ ((f90-looking-at-select-case))
+ ((f90-looking-at-type-like))
+ ((f90-looking-at-program-block-start))))
+ (setq count (- count 1)))
+ ((looking-at (concat "end[ \t]*" f90-blocks-re "\\b"))
+ (setq count (+ count 1)))
+ ((looking-at "continue\\>") (setq count (+ count 1)))))
+ (if (not (zerop count))
+ (message "No matching beginning.")
+ (f90-update-line)
+ (if (eq f90-smart-end 'blink)
+ (if (< (point) top-of-window)
+ (message (concat
+ "Matches " (what-line) ": "
+ (buffer-substring
+ (progn (beginning-of-line) (point))
+ (progn (end-of-line) (point)))))
+ (sit-for 1)))
+ (setq beg-block (car matching-beg))
+ (setq beg-name (car (cdr matching-beg)))
+ (goto-char end-point)
+ (beginning-of-line)
+ (f90-block-match beg-block beg-name end-block end-name)))))))
+
+(defun f90-insert-end ()
+ "Inserts an complete end statement matching beginning of present block."
+ (interactive)
+ (let ((f90-smart-end (if f90-smart-end f90-smart-end 'blink)))
+ (insert "end")
+ (f90-indent-new-line)))
+\f
+;; abbrevs and keywords
+
+(defun f90-abbrev-start ()
+ "Typing `\\[help-command] or `? lists all the F90 abbrevs.
+Any other key combination is executed normally."
+ (interactive)
+ (let (c)
+ (insert last-command-char)
+ (if (or (eq (setq c (if (string-match "Lucid" emacs-version)
+ (event-to-character (next-command-event))
+ (read-event)))
+ ??) ;insert char if not equal to `?'
+ (eq c help-char))
+ (f90-abbrev-help)
+ (if (string-match "Lucid" emacs-version)
+ (setq unread-command-event c)
+ (setq unread-command-events (list c))))))
+
+(defun f90-abbrev-help ()
+ "List the currently defined abbrevs in F90 mode."
+ (interactive)
+ (message "Listing abbrev table...")
+ (display-buffer (f90-prepare-abbrev-list-buffer))
+ (message "Listing abbrev table...done"))
+
+(defun f90-prepare-abbrev-list-buffer ()
+ (save-excursion
+ (set-buffer (get-buffer-create "*Abbrevs*"))
+ (erase-buffer)
+ (insert-abbrev-table-description 'f90-mode-abbrev-table t)
+ (goto-char (point-min))
+ (set-buffer-modified-p nil)
+ (edit-abbrevs-mode))
+ (get-buffer-create "*Abbrevs*"))
+
+(defun f90-upcase-keywords ()
+ "Upcase all F90 keywords in the buffer."
+ (interactive)
+ (f90-change-keywords 'upcase-word))
+
+(defun f90-capitalize-keywords ()
+ "Capitalize all F90 keywords in the buffer."
+ (interactive)
+ (f90-change-keywords 'capitalize-word))
+
+(defun f90-downcase-keywords ()
+ "Downcase all F90 keywords in the buffer."
+ (interactive)
+ (f90-change-keywords 'downcase-word))
+
+(defun f90-upcase-region-keywords (beg end)
+ "Upcase all F90 keywords in the region."
+ (interactive "*r")
+ (f90-change-keywords 'upcase-word beg end))
+
+(defun f90-capitalize-region-keywords (beg end)
+ "Capitalize all F90 keywords in the region."
+ (interactive "*r")
+ (f90-change-keywords 'capitalize-word beg end))
+
+(defun f90-downcase-region-keywords (beg end)
+ "Downcase all F90 keywords in the region."
+ (interactive "*r")
+ (f90-change-keywords 'downcase-word beg end))
+
+;; Change the keywords according to argument.
+(defun f90-change-keywords (change-word &optional beg end)
+ (save-excursion
+ (setq beg (if beg beg (point-min)))
+ (setq end (if end end (point-max)))
+ (let ((keyword-re
+ (concat "\\<\\("
+ (mapconcat 'identity f90-keywords "\\|") "\\|"
+ (mapconcat 'identity f90-intrinsic-procedures"\\|") "\\|"
+ (mapconcat 'identity f90-hpf-procedures "\\|") "\\|"
+ (mapconcat 'identity f90-hpf-directives "\\|") "\\|"
+ (mapconcat 'identity f90-hpf-keywords "\\|")
+ "\\)\\>")) (ref-point (point-min)) state)
+ (goto-char beg)
+ (while (re-search-forward keyword-re end t)
+ (if (progn
+ (setq state (parse-partial-sexp ref-point (point)))
+ (and (not (nth 3 state)) (not (nth 4 state))))
+ (progn
+ (setq ref-point (point))
+ (funcall change-word -1)))))))
+
+(provide 'f90)
+;;; f90.el ends here
projects / emacs.git / commitdiff