Anonymous avatar Anonymous committed f958a8e

Move Fortran stuff from prog-modes to fortran-modes.

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+_pkg.el
+auto-autoloads.el
+custom-load.el
+package-info
+pdepends.mk
+2002-09-18  Ville Skyttä  <ville.skytta@xemacs.org>
+
+	* Package created, moved f90, fortran-mode and fortran-misc
+	from the prog-modes package here.
+# Makefile for Fortran modes lisp code
+
+# This file is part of XEmacs.
+
+# XEmacs 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, or (at your option) any
+# later version.
+
+# XEmacs 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 XEmacs; see the file COPYING.  If not, write to
+# the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+# Boston, MA 02111-1307, USA.
+
+VERSION = 0.99
+AUTHOR_VERSION =
+MAINTAINER = XEmacs Development Team <xemacs-beta@xemacs.org>
+PACKAGE = fortran-modes
+PKG_TYPE = single-file
+REQUIRES = xemacs-base
+CATEGORY = standard
+
+ELCS = f90.elc fortran.elc fortran-misc.elc
+
+include ../../XEmacs.rules
+
+GENERATED += custom-load.elc
+
+all:: $(ELCS) auto-autoloads.elc custom-load.elc
+
+srckit: srckit-std
+
+binkit: binkit-common
+;;; f90.el --- Fortran-90 mode (free format)
+
+;; Copyright (C) 1995, 1996, 1997, 2000 Free Software Foundation, Inc.
+
+;; Author: Torbj\"orn Einarsson <Torbjorn.Einarsson@era.ericsson.se>
+;; Maintainer: Dave Love <fx@gnu.org>
+;; Keywords: fortran, f90, languages
+
+;; This file is part of XEmacs.
+
+;; XEmacs 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.
+
+;; XEmacs 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 XEmacs; if not, write to the Free Software Foundation,
+;; Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+;;; Synched up with: GNU Emacs 21.2, except that
+;;; font-lock-function-name-face is used in place of font-lock-constant-face.
+
+;;; 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) Colors/fonts using font-lock-mode. (only when using X-windows)
+;;  Automatic upcase of downcase of keywords is controlled by the parameter
+;;  f90-auto-keyword-case.
+
+;; The indentations of lines starting with ! is determined by the first of the
+;; following matches (the values in the left column are the default values):
+
+;; start-string/regexp  indent         variable holding start-string/regexp
+;;    !!!                  0
+;;    !hpf\\$ (re)         0              f90-directive-comment-re
+;;    !!$                  0              f90-comment-region
+;;    !      (re)        as code          f90-indented-comment-re
+;;    default            comment-column
+
+;; Ex: Here is the result of 3 different settings of f90-indented-comment-re
+;;     f90-indented-comment-re  !-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$" . f90-mode))))
+;; Once you have entered f90-mode, you may get more info by using
+;; the command describe-mode (C-h m). For online help describing various
+;; functions use  C-h f <Name of function you want described>
+
+;; To customize the f90-mode for your taste, use, for example:
+;;    (you don't have to specify values for all the parameters below)
+;;(add-hook 'f90-mode-hook
+;;      '(lambda () (setq f90-do-indent 3
+;;                        f90-if-indent 3
+;;                        f90-type-indent 3
+;;                        f90-program-indent 2
+;;                        f90-continuation-indent 5
+;;                        f90-comment-region "!!$"
+;;                        f90-directive-comment-re "!hpf\\$"
+;;                        f90-indented-comment-re "!"
+;;                        f90-break-delimiters "[-+\\*/,><=% \t]"
+;;                        f90-break-before-delimiters t
+;;                        f90-beginning-ampersand t
+;;                        f90-smart-end 'blink
+;;                        f90-auto-keyword-case nil
+;;                        f90-leave-line-no  nil
+;;                        f90-startup-message t
+;;                        indent-tabs-mode nil
+;;                        f90-font-lock-keywords f90-font-lock-keywords-2
+;;                  )
+;;       ;;The rest is not default.
+;;       (abbrev-mode 1)             ; turn on abbreviation mode
+;;       (f90-add-imenu-menu)        ; extra menu with functions etc.
+;;       (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 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) Regexps for hilit19 are no longer supported.
+;; 4) For FIXED FORMAT code, use the ordinary fortran mode.
+;; 5) This mode does not work under emacs-18.x.
+;; 6) Preprocessor directives, i.e., lines starting with # are left-justified
+;;    and are untouched by all case-changing commands. There is, at present, no
+;;    mechanism for treating multi-line directives (continued by \ ).
+;; 7) f77 do-loops do 10 i=.. ; ; 10 continue are not correctly indented.
+;;    You are urged to use f90-do loops (with labels if you wish).
+;; 8) The highlighting mode under XEmacs is not as complete as under Emacs.
+
+;; 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-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
+;;   f90-add-imenu-menu
+;;   f90-font-lock-1, f90-font-lock-2, f90-font-lock-3, f90-font-lock-4
+
+;; 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:
+
+;; User options
+
+(defgroup f90 nil
+  "Fortran-90 mode"
+  :group 'languages)
+
+(defgroup f90-indent nil
+  "Fortran-90 indentation"
+  :prefix "f90-"
+  :group 'f90)
+
+
+(defcustom f90-do-indent 3
+  "*Extra indentation applied to DO blocks."
+  :type 'integer
+  :group 'f90-indent)
+
+(defcustom f90-if-indent 3
+  "*Extra indentation applied to IF, SELECT CASE, WHERE and FORALL blocks."
+  :type 'integer
+  :group 'f90-indent)
+
+(defcustom f90-type-indent 3
+  "*Extra indentation applied to TYPE, INTERFACE and BLOCK DATA blocks."
+  :type 'integer
+  :group 'f90-indent)
+
+(defcustom f90-program-indent 2
+  "*Extra indentation applied to PROGRAM/MODULE/SUBROUTINE/FUNCTION blocks."
+  :type 'integer
+  :group 'f90-indent)
+
+(defcustom f90-continuation-indent 5
+  "*Extra indentation applied to F90 continuation lines."
+  :type 'integer
+  :group 'f90-indent)
+
+(defcustom f90-comment-region "!!$"
+  "*String inserted by \\[f90-comment-region]\
+ at start of each line in region."
+  :type 'string
+  :group 'f90-indent)
+
+(defcustom f90-indented-comment-re "!"
+  "*Regexp saying which comments to be indented like code."
+  :type 'regexp
+  :group 'f90-indent)
+
+(defcustom f90-directive-comment-re "!hpf\\$"
+  "*Regexp of comment-like directive like \"!HPF\\\\$\", not to be indented."
+  :type 'regexp
+  :group 'f90-indent)
+
+(defcustom f90-beginning-ampersand t
+  "*t makes automatic insertion of \& at beginning of continuation line."
+  :type 'boolean
+  :group 'f90)
+
+(defcustom 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."
+  :type '(choice (const blink) (const no-blink) (const nil))
+  :group 'f90)
+
+(defcustom f90-break-delimiters "[-+\\*/><=,% \t]"
+  "*Regexp holding list of delimiters at which lines may be broken."
+  :type 'regexp
+  :group 'f90)
+
+(defcustom f90-break-before-delimiters t
+  "*Non-nil causes `f90-do-auto-fill' to break lines before delimiters."
+  :type 'boolean
+  :group 'f90)
+
+(defcustom f90-auto-keyword-case nil
+  "*Automatic case conversion of keywords.
+  The options are 'downcase-word, 'upcase-word, 'capitalize-word and nil"
+  :type '(choice (const downcase-word) (const upcase-word)
+		 (const capitalize-word) (const nil))
+  :group 'f90)
+
+(defcustom f90-leave-line-no nil
+  "*If nil, left-justify linenumbers."
+  :type 'boolean
+  :group 'f90)
+
+(defcustom f90-startup-message t
+  "*Non-nil displays a startup message when F90 mode is first called."
+  :type 'boolean
+  :group 'f90)
+
+(defconst f90-keywords-re
+  ;;("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" "only" "open" "operator" "optional" "parameter"
+  ;;"pause" "pointer" "precision" "print" "private" "procedure" "program"
+  ;;"public" "read" "real" "recursive" "result" "return" "rewind" "save" "select"
+  ;;"sequence" "stop" "subroutine" "target" "then" "type" "use" "where"
+  ;;"while" "write")
+  (concat
+   "\\<\\(a\\(llocat\\(able\\|e\\)\\|ssign\\(\\|ment\\)\\)\\|b\\(ackspace\\|"
+   "lock\\)\\|c\\(a\\(ll\\|se\\)\\|haracter\\|lose\\|o\\(m\\(mon\\|plex\\)\\|"
+   "nt\\(ains\\|inue\\)\\)\\|ycle\\)\\|d\\(ata\\|eallocate\\|imension\\|"
+   "o\\(\\|uble\\)\\)\\|e\\(lse\\(\\|if\\|where\\)\\|n\\(d\\(\\|do\\|file\\|"
+   "if\\)\\|try\\)\\|quivalence\\|x\\(it\\|ternal\\)\\)\\|f\\(or\\(all\\|"
+   "mat\\)\\|unction\\)\\|goto\\|i\\(f\\|mplicit\\|n\\(clude\\|quire\\|t\\("
+   "e\\(ger\\|nt\\|rface\\)\\|rinsic\\)\\)\\)\\|logical\\|module\\|n\\("
+   "amelist\\|one\\|ullify\\)\\|o\\(nly\\|p\\(en\\|erator\\|tional\\)\\)\\|p\\(a\\("
+   "rameter\\|use\\)\\|ointer\\|r\\(ecision\\|i\\(nt\\|vate\\)\\|o\\("
+   "cedure\\|gram\\)\\)\\|ublic\\)\\|re\\(a[dl]\\|cursive\\|sult\\|turn\\|wind\\)\\|"
+   "s\\(ave\\|e\\(lect\\|quence\\)\\|top\\|ubroutine\\)\\|t\\(arget\\|hen\\|"
+   "ype\\)\\|use\\|w\\(h\\(ere\\|ile\\)\\|rite\\)\\)\\>")
+  "Regexp for F90 keywords.")
+
+(defconst f90-keywords-level-3-re
+  ;; ("allocate" "allocatable" "assign" "assignment" "backspace" "close"
+  ;; "deallocate" "dimension" "endfile" "entry" "equivalence" "external"
+  ;; "inquire" "intent" "intrinsic" "nullify" "only" "open" "operator"
+  ;; "optional" "parameter" "pause" "pointer" "print" "private" "public"
+  ;; "read" "recursive" "result" "rewind" "save" "select" "sequence"
+  ;; "target"  "write")
+  (concat
+   "\\<\\(a\\(llocat\\(able\\|e\\)\\|ssign\\(\\|ment\\)\\)\\|backspace\\|"
+   "close\\|d\\(eallocate\\|imension\\)\\|e\\(n\\(dfile\\|try\\)\\|"
+   "quivalence\\|xternal\\)\\|"
+   "in\\(quire\\|t\\(ent\\|rinsic\\)\\)\\|nullify\\|"
+   "o\\(nly\\|p\\(en\\|erator\\|tional\\)\\)\\|"
+   "p\\(a\\(rameter\\|use\\)\\|ointer\\|ri\\(nt\\|vate\\)\\|ublic\\)\\|re\\("
+   "ad\\|cursive\\|sult\\|wind\\)\\|s\\(ave\\|e\\(lect\\|quence\\)\\)\\|target\\|"
+   "write\\)\\>")
+"Keyword-regexp for font-lock level >= 3.")
+
+
+(defconst f90-procedures-re
+  ;; ("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")
+  ;; A left parenthesis to avoid highlighting non-procedures.
+  ;; Real is taken out here to avoid highlighting declarations.
+  (concat
+   "\\<\\(a\\(bs\\|c\\(har\\|os\\)\\|djust[lr]\\|i\\(mag\\|nt\\)\\|ll\\(\\|"
+   "ocated\\)\\|n\\(int\\|y\\)\\|s\\(in\\|sociated\\)\\|tan2?\\)\\|b\\("
+   "it_size\\|test\\)\\|c\\(eiling\\|har\\|mplx\\|o\\(njg\\|sh?\\|unt\\)\\|"
+   "shift\\)\\|d\\(ate_and_time\\|ble\\|i\\(gits\\|m\\)\\|ot_product\\|prod"
+   "\\)\\|e\\(oshift\\|psilon\\|xp\\(\\|onent\\)\\)\\|f\\(loor\\|"
+   "raction\\)\\|huge\\|i\\(a\\(char\\|nd\\)\\|b\\(clr\\|its\\|set\\)\\|"
+   "char\\|eor\\|n\\(dex\\|t\\)\\|or\\|shftc?\\)\\|kind\\|l\\(bound\\|"
+   "en\\(\\|_trim\\)\\|g[et]\\|l[et]\\|og\\(\\|10\\|ical\\)\\)\\|m\\(a\\("
+   "tmul\\|x\\(\\|exponent\\|loc\\|val\\)\\)\\|erge\\|in\\(\\|exponent\\|"
+   "loc\\|val\\)\\|od\\(\\|ulo\\)\\|vbits\\)\\|n\\(earest\\|int\\|ot\\)\\|"
+   "p\\(ack\\|r\\(e\\(cision\\|sent\\)\\|oduct\\)\\)\\|r\\(a\\(dix\\|n\\("
+   "dom_\\(number\\|seed\\)\\|ge\\)\\)\\|e\\(peat\\|shape\\)\\|rspacing\\)\\|"
+   "s\\(ca\\(le\\|n\\)\\|e\\(lected_\\(int_kind\\|real_kind\\)\\|"
+   "t_exponent\\)\\|hape\\|i\\(gn\\|nh?\\|ze\\)\\|p\\(acing\\|read\\)\\|"
+   "qrt\\|um\\|ystem_clock\\)\\|t\\(anh?\\|iny\\|r\\(ans\\(fer\\|pose\\)\\|"
+   "im\\)\\)\\|u\\(bound\\|npack\\)\\|verify\\)[ \t]*(")
+  "Regexp whose first part matches F90 intrinsic procedures.")
+
+(defconst f90-operators-re
+;; "and" "or" "not" "eqv" "neqv" "eq" "ne" "lt" "le" "gt" "ge" "true" "false"
+ (concat
+   "\\.\\(and\\|eqv?\\|false\\|g[et]\\|l[et]\\|n\\(e\\(\\|qv\\)\\|"
+   "ot\\)\\|or\\|true\\)\\.")
+  "Regexp matching intrinsic operators.")
+
+(defconst f90-hpf-keywords-re
+  ;; Intrinsic 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")
+  ;; Directives
+  ;; ("align" "distribute" "dynamic" "inherit" "template" "processors"
+  ;; "realign" "redistribute" "independent")
+  ;; Keywords
+  ;; ("pure" "extrinsic" "new" "with" "onto" "block" "cyclic")
+  (concat
+   "\\<\\(a\\(l\\(ign\\|l_\\(prefix\\|s\\(catter\\|uffix\\)\\)\\)\\|ny_\\("
+   "prefix\\|s\\(catter\\|uffix\\)\\)\\)\\|block\\|c\\(o\\(py_\\(prefix\\|"
+   "s\\(catter\\|uffix\\)\\)\\|unt_\\(prefix\\|s\\(catter\\|uffix\\)\\)\\)\\|"
+   "yclic\\)\\|d\\(istribute\\|ynamic\\)\\|extrinsic\\|grade_\\(down\\|"
+   "up\\)\\|hpf_\\(alignment\\|distribution\\|template\\)\\|i\\(a\\(ll\\(\\|"
+   "_\\(prefix\\|s\\(catter\\|uffix\\)\\)\\)\\|ny\\(\\|_\\(prefix\\|s\\("
+   "catter\\|uffix\\)\\)\\)\\)\\|len\\|n\\(dependent\\|herit\\)\\|parity\\(\\|"
+   "_\\(prefix\\|s\\(catter\\|uffix\\)\\)\\)\\)\\|leadz\\|m\\(axval_\\("
+   "prefix\\|s\\(catter\\|uffix\\)\\)\\|inval_\\(prefix\\|s\\(catter\\|"
+   "uffix\\)\\)\\)\\|n\\(ew\\|umber_of_processors\\)\\|onto\\|p\\(arity\\(\\|"
+   "_\\(prefix\\|s\\(catter\\|uffix\\)\\)\\)\\|op\\(cnt\\|par\\)\\|ro\\("
+   "cessors\\(\\|_shape\\)\\|duct_\\(prefix\\|s\\(catter\\|uffix\\)\\)\\)\\|"
+   "ure\\)\\|re\\(align\\|distribute\\)\\|sum_\\(prefix\\|s\\(catter\\|"
+   "uffix\\)\\)\\|template\\|with\\)\\>")
+  "Regexp for all HPF keywords, procedures and directives.")
+
+;; Highlighting patterns
+
+(defvar f90-font-lock-keywords-1
+  (list
+   '("\\<\\(end[ \t]*\\(program\\|module\\|function\\|subroutine\\|type\\)\\)\\>[ \t]*\\(\\sw+\\)?"
+     (1 font-lock-keyword-face) (3 font-lock-function-name-face nil t))
+   '("\\<\\(program\\|call\\|module\\|subroutine\\|function\\|use\\)\\>[ \t]*\\(\\sw+\\)?"
+     (1 font-lock-keyword-face) (2 font-lock-function-name-face nil t))
+   ;; Special highlighting of "module procedure foo-list"
+   '("\\<\\(module[ \t]*procedure\\)\\>" (1 font-lock-keyword-face t))
+   ;; Highlight definition of new type
+   '("\\<\\(type\\)[ \t]*\\(.*::[ \t]*\\|[ \t]+\\)\\(\\sw+\\)"
+     (1 font-lock-keyword-face) (3 font-lock-function-name-face))
+   "\\<\\(\\(end[ \t]*\\)?\\(interface\\|block[ \t]*data\\)\\|contains\\)\\>")
+  "This does fairly subdued highlighting of comments and function calls.")
+
+(defvar f90-font-lock-keywords-2
+  (append f90-font-lock-keywords-1
+      (list
+       ;; Variable declarations (avoid the real function call)
+       '("^[ \t0-9]*\\(real\\|integer\\|c\\(haracter\\|omplex\\)\\|logical\\|type[ \t]*(\\sw+)\\)\\(.*::\\|[ \t]*(.*)\\)?\\([^!\n]*\\)"
+	 (1 font-lock-type-face) (4 font-lock-variable-name-face))
+       ;; do, if, select, where, and forall constructs
+       '("\\<\\(end[ \t]*\\(do\\|if\\|select\\|forall\\|where\\)\\)\\>\\([ \t]+\\(\\sw+\\)\\)?"
+	 (1 font-lock-keyword-face) (3 font-lock-function-name-face nil t))
+       '("^[ \t0-9]*\\(\\(\\sw+\\)[ \t]*:[ \t]*\\)?\\(\\(if\\|do\\([ \t]*while\\)?\\|select[ \t]*case\\|where\\|forall\\)\\)\\>"
+	 (2 font-lock-function-name-face nil t) (3 font-lock-keyword-face))
+       ;; implicit declaration
+       '("\\<\\(implicit\\)[ \t]*\\(real\\|integer\\|c\\(haracter\\|omplex\\)\\|logical\\|type[ \t]*(\\sw+)\\|none\\)\\>" (1 font-lock-keyword-face) (2 font-lock-type-face))
+       '("\\<\\(namelist\\|common\\)[ \t]*\/\\(\\sw+\\)?\/" (1 font-lock-keyword-face) (2 font-lock-function-name-face nil t))
+       "\\<else\\([ \t]*if\\|where\\)?\\>"
+       "\\<\\(then\\|continue\\|format\\|include\\|stop\\|return\\)\\>"
+       '("\\<\\(exit\\|cycle\\)[ \t]*\\(\\sw+\\)?\\>" 
+	 (1 font-lock-keyword-face) (2 font-lock-function-name-face nil t))
+       '("\\<\\(case\\)[ \t]*\\(default\\|(\\)" . 1)
+       '("\\<\\(do\\|go *to\\)\\>[ \t]*\\([0-9]+\\)"
+	 (1 font-lock-keyword-face) (2 font-lock-function-name-face))
+       ;; line numbers (lines whose first character after number is letter)
+       '("^[ \t]*\\([0-9]+\\)[ \t]*[a-z]+" (1 font-lock-function-name-face t))))
+  "Highlights declarations, do-loops and other constructions")
+
+(defvar f90-font-lock-keywords-3
+  (append f90-font-lock-keywords-2
+   (list
+    f90-keywords-level-3-re
+    f90-operators-re
+    (list f90-procedures-re '(1 font-lock-keyword-face t))
+   "\\<real\\>"			; Avoid overwriting real defs.
+   ))
+  "Highlights all F90 keywords and intrinsic procedures.")
+
+(defvar f90-font-lock-keywords-4
+  (append f90-font-lock-keywords-3
+    (list f90-hpf-keywords-re))
+  "Highlights all F90 and HPF keywords.")
+
+(defvar f90-font-lock-keywords
+      f90-font-lock-keywords-2
+  "*Default expressions to highlight in F90 mode.")
+
+;; 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)
+  (define-key f90-mode-map ","        'f90-electric-insert)
+  (define-key f90-mode-map "+"        'f90-electric-insert)
+  (define-key f90-mode-map "-"        'f90-electric-insert)
+  (define-key f90-mode-map "*"        'f90-electric-insert)
+  (define-key f90-mode-map "/"        'f90-electric-insert))
+
+ 
+;; menus
+(if (string-match "XEmacs" emacs-version)
+    (defvar f90-xemacs-menu
+      '("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 Block 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"     auto-fill-mode		t])
+      "XEmacs menu for F90 mode.")
+  ;; Emacs
+
+  (defvar f90-change-case-menu
+    (let ((map (make-sparse-keymap "Change Keyword Case")))
+      
+      (define-key map [dkr] (cons "Downcase Keywords (region)"
+				  'f90-downcase-region-keywords))
+      (put 'f90-downcase-region-keywords 'menu-enable 'mark-active)
+      
+      (define-key map [ckr] (cons "Capitalize Keywords (region)"
+				  'f90-capitalize-region-keywords))
+      (put 'f90-capitalize-region-keywords 'menu-enable 'mark-active)
+      
+      (define-key map [ukr] (cons "Upcase Keywords (region)"
+				  'f90-upcase-region-keywords))
+      (put 'f90-upcase-region-keywords 'menu-enable 'mark-active)
+      
+      (define-key map [line] (list "-----------------"))
+      
+      (define-key map [dkb] (cons "Downcase Keywords (buffer)"
+				  'f90-downcase-keywords))
+      
+      (define-key map [ckb] (cons "Capitalize Keywords (buffer)"
+				  'f90-capitalize-keywords))
+      
+      (define-key map [ukb] (cons "Upcase Keywords (buffer)"
+				  'f90-upcase-keywords))
+      map)
+    "Submenu for change of case.")
+  (defalias 'f90-change-case-menu f90-change-case-menu)
+
+  ;; font-lock-menu and function calls
+  (defalias 'f90-font-lock-on  'font-lock-mode)
+  (defalias 'f90-font-lock-off 'font-lock-mode)
+  (put 'f90-font-lock-on  'menu-enable 'font-lock-mode)
+  (put 'f90-font-lock-off 'menu-enable '(not font-lock-mode))
+  
+  (defun f90-font-lock-1 ()
+    (interactive)
+    "Set font-lock-keywords to f90-font-lock-keywords-1."
+    (font-lock-mode 1)
+    (setq font-lock-keywords f90-font-lock-keywords-1)
+    (font-lock-fontify-buffer))
+    
+  (defun f90-font-lock-2 ()
+    (interactive)
+    "Set font-lock-keywords to f90-font-lock-keywords-2."
+    (font-lock-mode 1)
+    (setq font-lock-keywords f90-font-lock-keywords-2)
+    (font-lock-fontify-buffer))
+    
+  (defun f90-font-lock-3 ()
+    (interactive)
+    "Set font-lock-keywords to f90-font-lock-keywords-3."
+    (font-lock-mode 1)
+    (setq font-lock-keywords f90-font-lock-keywords-3)
+    (font-lock-fontify-buffer))
+    
+  (defun f90-font-lock-4 ()
+    (interactive)
+    "Set font-lock-keywords to f90-font-lock-keywords-4."
+    (font-lock-mode 1)
+    (setq font-lock-keywords f90-font-lock-keywords-4)
+    (font-lock-fontify-buffer))
+    
+  (defvar f90-font-lock-menu
+    (let ((map (make-sparse-keymap "f90-font-lock-menu")))
+      (define-key map [h4] (cons "Maximum highlighting (level 4)"
+				 'f90-font-lock-4))
+      (define-key map [h3] (cons "Heavy highlighting (level 3)"
+				 'f90-font-lock-3))
+      (define-key map [h2] (cons "Default highlighting (level 2)"
+				 'f90-font-lock-2))
+      (define-key map [h1] (cons "Light highlighting (level 1)"
+				 'f90-font-lock-1))
+      (define-key map [line] (list "-----------------"))
+      (define-key map [floff] (cons "Turn off font-lock-mode"
+				    'f90-font-lock-on))
+      (define-key map [flon] (cons "Turn on font-lock-mode"
+				   'f90-font-lock-off))
+      map)
+    "Submenu for highlighting using font-lock-mode.")
+  (defalias 'f90-font-lock-menu f90-font-lock-menu)
+
+  (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 f90-imenu-menu]
+    '("Add imenu Menu" . f90-add-imenu-menu))
+  (define-key f90-mode-map [menu-bar f90 abbrev-mode]
+    '("Toggle abbrev-mode" . abbrev-mode))
+  (define-key f90-mode-map [menu-bar f90 auto-fill-mode]
+    '("Toggle auto-fill" . auto-fill-mode))
+  (define-key f90-mode-map [menu-bar f90 line1]
+    '("----"))
+  (define-key f90-mode-map [menu-bar f90 f90-change-case-menu]
+    (cons "Change Keyword Case" 'f90-change-case-menu))
+  (define-key f90-mode-map [menu-bar f90 f90-font-lock-menu]
+    (cons "Highlighting" 'f90-font-lock-menu))
+  (define-key f90-mode-map [menu-bar f90 line2]
+    '("----"))
+
+  (define-key f90-mode-map [menu-bar f90 f90-insert-end]
+    '("Insert Block 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 line3]
+    '("----"))
+  
+  (define-key f90-mode-map [menu-bar f90 f90-fill-region]
+    '("Fill Region" . f90-fill-region))
+  (put 'f90-fill-region 'menu-enable 'mark-active)
+  
+  (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))
+  (put 'f90-comment-region 'menu-enable 'mark-active)
+  
+  (define-key f90-mode-map [menu-bar f90 line4]
+    '("----"))
+  
+  (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))
+  )
+
+;; Regexps for finding program structures.
+(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\\([ \t]*if\\|where\\)?\\|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-type-def-re
+  "\\<\\(type\\)\\([^(\n]*\\)\\(::\\)?[ \t]*\\b\\(\\sw+\\)")
+(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)
+;; A flag to tell whether f90-imenu is turned on.
+(defvar f90-imenu nil)
+(make-variable-buffer-local 'f90-imenu)
+
+
+;; Imenu support
+(defvar f90-imenu-generic-expression
+  (let ((good-char "[^!\"\&\n \t]") (not-e "[^e!\n\"\& \t]")
+	(not-n "[^n!\n\"\& \t]") (not-d "[^d!\n\"\& \t]"))
+    (list
+     '(nil "^[ \t0-9]*program[ \t]+\\(\\sw+\\)" 1)
+     '("Modules" "^[ \t0-9]*module[ \t]+\\(\\sw+\\)[ \t]*\\(!\\|$\\)" 1)
+     '("Types" "^[ \t0-9]*type[ \t]+\\(\\sw+\\)" 1)
+     (list
+      "Procedures" 
+      (concat
+       "^[ \t0-9]*"
+       "\\("
+       ;; At least three non-space characters before function/subroutine
+       ;; Check that the last three non-space characters don't spell E N D
+       "[^!\"\&\n]*\\("
+       not-e good-char good-char "\\|"
+       good-char not-n good-char "\\|"
+       good-char good-char not-d "\\)"
+       "\\|"
+       ;; Less than three non-space characters before function/subroutine
+       good-char "?" good-char "?"
+       "\\)"
+       "[ \t]*\\(function\\|subroutine\\)[ \t]+\\(\\sw+\\)")
+    4)))
+  "imenu generic expression for F90 mode.")
+
+(defun f90-add-imenu-menu ()
+  (interactive)
+  "Add an imenu menu to the menubar."
+  (if (not f90-imenu)
+      (progn
+	(imenu-add-to-menubar "F90-imenu")
+	(redraw-frame (selected-frame))
+	(setq f90-imenu t))
+    (message "%s" "F90-imenu already exists.")))
+(put 'f90-add-imenu-menu 'menu-enable '(not f90-imenu))
+
+
+;; When compiling under GNU Emacs, load imenu during compilation.  If
+;; you have 19.22 or earlier, comment this out, or get imenu.
+(and (fboundp 'eval-when-compile)
+     (eval-when-compile
+       (if (not (string-match "XEmacs" emacs-version))
+	   (require 'imenu))
+       ()))
+
+;; 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"  "allocatable" 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)))
+
+(defcustom f90-mode-hook nil
+  "Hook run by F90 mode."
+  :type 'hook
+  :options '(f90-add-imenu-menu)
+  :group 'f90)
+
+;;;###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-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)
+ f90-startup-message
+    Set to nil to inhibit message first time F90 mode is used. (default t)
+ f90-keywords-re
+    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)
+  (make-local-variable 'normal-auto-fill-function)
+  (setq normal-auto-fill-function 'f90-do-auto-fill)
+  (setq indent-tabs-mode nil)
+  ;; Setting up things for font-lock
+  (if (string-match "XEmacs" emacs-version)
+      (progn
+	(put 'f90-mode 'font-lock-keywords-case-fold-search t)
+	(if (and (featurep 'menubar)
+		 current-menubar
+		 (not (assoc "F90" current-menubar)))
+	    (progn
+	      (set-buffer-menubar (copy-sequence current-menubar))
+	      (add-submenu nil f90-xemacs-menu)))))
+  ;; XEmacs: (Don't need a special case, since both emacsen work alike -sb)
+  (make-local-variable 'font-lock-defaults)
+  (setq font-lock-defaults 
+	'((f90-font-lock-keywords f90-font-lock-keywords-1
+				  f90-font-lock-keywords-2
+				  f90-font-lock-keywords-3
+				  f90-font-lock-keywords-4)
+	  nil t))
+  ;; Tell imenu how to handle f90.
+  (set (make-local-variable 'imenu-case-fold-search) t)
+  (make-local-variable 'imenu-generic-expression)
+  (setq imenu-generic-expression f90-imenu-generic-expression)
+  (set (make-local-variable 'add-log-current-defun-function)
+       #'f90-current-defun)
+  (run-hooks 'f90-mode-hook)
+;;   (if f90-startup-message
+;;       (message "Emacs F90 mode; please report bugs to %s" bug-f90-mode))
+  (setq f90-startup-message nil))
+
+;; 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)))
+
+;; XEmacs 19.11 & 19.12 gives back a single char when matching an empty regular
+;; expression. Therefore, the next 2 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."
+  (if (looking-at "\\(\\(\\sw+\\)[ \t]*\:\\)?[ \t]*\\(do\\)\\>")
+      (let (label
+	    (struct (f90-match-piece 3)))
+	(if (looking-at "\\(\\sw+\\)[ \t]*\:")
+	    (setq label (f90-match-piece 1)))
+	(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."
+  (if (looking-at "\\(\\(\\sw+\\)[ \t]*\:\\)?[ \t]*\\(select\\)[ \t]*case[ \t]*(")
+      (let (label
+	    (struct (f90-match-piece 3)))
+	(if (looking-at "\\(\\sw+\\)[ \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 "\\(\\(\\sw+\\)[ \t]*\:\\)?[ \t]*\\(if\\)\\>")
+	  (progn
+	    (setq struct (f90-match-piece 3))
+	    (if (looking-at "\\(\\sw+\\)[ \t]*\:")
+		(setq label (f90-match-piece 1)))
+	    (let ((pos (scan-lists (point) 1 0)))
+	      (and pos (goto-char pos)))
+	    (skip-chars-forward " \t")
+	    (if (or (looking-at "then\\>")
+		    (if (f90-line-continued)
+			(progn
+			  (f90-next-statement)
+			  (skip-chars-forward " \t0-9&")
+			  (looking-at "then\\>"))))
+		(list struct label)))))))
+
+(defsubst f90-looking-at-where-or-forall ()
+  "Return (kind name) if a where or forall block starts after point.
+Name is nil if the statement has no label."
+  (if (looking-at "\\(\\(\\sw+\\)[ \t]*\:\\)?[ \t]*\\(where\\|forall\\)[ \t]*(.*)[ \t]*\\(!\\|$\\)")
+      (let (label
+	    (struct (f90-match-piece 3)))
+	(if (looking-at "\\(\\sw+\\)[ \t]*\:")
+	    (setq label (f90-match-piece 1)))
+	(list struct label))))
+
+(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 f90-type-def-re)
+    (list (f90-match-piece 1) (f90-match-piece 4)))
+   ((looking-at "\\(interface\\|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 "\\(program\\)[ \t]+\\(\\sw+\\)\\>")
+    (list (f90-match-piece 1) (f90-match-piece 2)))
+   ((and (not (looking-at "module[ \t]*procedure\\>"))
+	 (looking-at "\\(module\\)[ \t]+\\(\\sw+\\)\\>"))
+    (list (f90-match-piece 1) (f90-match-piece 2)))
+   ((and (not (looking-at "end[ \t]*\\(function\\|subroutine\\)"))
+	 (looking-at "[^!\"\&\n]*\\(function\\|subroutine\\)[ \t]+\\(\\sw+\\)"))
+    (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]+\\(\\sw+\\)\\)?\\>"))
+      (list (f90-match-piece 1) (f90-match-piece 3))))
+
+(defsubst f90-comment-indent ()
+  (cond ((looking-at "!!!") 0)
+	((and f90-directive-comment-re
+	      (looking-at f90-directive-comment-re)) 0)
+	((looking-at (regexp-quote f90-comment-region)) 0)
+	((and (looking-at f90-indented-comment-re)
+	      ;; Don't attempt to indent trailing comment as code.
+	      (save-excursion
+		(skip-chars-backward " \t")
+		(bolp)))
+	 (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\\(if\\|where\\)?\
+\\|select[ \t]*case\\|case\\|where\\|forall\\)\\>")
+	       (looking-at "\\(program\\|module\\|interface\\|\
+block[ \t]*data\\)\\>")
+	       (looking-at "\\(contains\\|\\sw+[ \t]*:\\)")
+	       (looking-at f90-type-def-re)
+	       (re-search-forward "\\(function\\|subroutine\\)" eol t))))))
+
+(defsubst f90-update-line ()
+  (let (bol eol)
+    (if f90-auto-keyword-case
+	(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))))))
+
+(defun f90-electric-insert ()
+  (interactive)
+  "Calls f90-do-auto-fill at each operator insertion."
+  (self-insert-command 1)
+  (f90-update-line)
+  (if auto-fill-function (f90-do-auto-fill)))
+
+(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\\)" 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\\>")
+		(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]*$"))
+		       ((looking-at "[ \t]*#") ; Check for cpp directive.
+			(setq icol 0))
+		       (t
+			(skip-chars-forward " \t0-9")
+			(cond ((or (looking-at f90-else-like-re)
+				   (looking-at f90-end-if-re))
+			       (setq icol (- icol f90-if-indent)))
+			      ((looking-at "end[ \t]*do\\>")
+			       (setq icol (- icol f90-do-indent)))
+			      ((looking-at f90-end-type-re)
+			       (setq icol (- icol f90-type-indent)))
+			      ((or (looking-at "contains[ \t]*\\(!\\|$\\)")
+				   (f90-looking-at-program-block-end))
+			       (setq icol (- icol f90-program-indent))))))
+		 ))))
+    icol))
+
+;; 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 "XEmacs" 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 auto-fill-function (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))
+	    (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 "XEmacs" 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 "Indenting %s %s..."
+		     (car program) (car (cdr program)))
+	    (f90-indent-region (point) (mark))
+	    (message "Indenting %s %s...done"
+		     (car program) (car (cdr program))))
+	(message "Indenting the whole file...")
+	(f90-indent-region (point) (mark))
+	(message "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 "&\n&"))
+	  ((f90-in-comment)
+	   (setq ctype (f90-get-present-comment-type))
+	   (newline 1)
+	   (insert ctype))
+	  (t (insert "&")
+	     (if (not no-update) (f90-update-line))
+	     (newline 1)
+	     (if f90-beginning-ampersand (insert "&")))))
+  (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-do-auto-fill ()
+  "Break line if non-white characters beyond fill-column. Also, update line. "
+  (interactive)
+  ;; Break the line before or after the last delimiter (non-word char) if
+  ;; position is beyond fill-column.
+  ;; Will not break **, //, or => (specified by f90-no-break-re).
+  (f90-update-line)
+  (while (> (current-column) fill-column)
+      (let ((pos-mark (point-marker)))
+	(move-to-column fill-column)
+	(if (not (f90-in-string))
+	    (f90-find-breakpoint))
+	(f90-break-line)
+	(goto-char pos-mark)
+	(set-marker pos-mark nil))))
+
+
+(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) (go-on t)
+	(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))
+      ;; chop the line if necessary
+      (while (> (save-excursion (end-of-line) (current-column))
+		fill-column)
+	(move-to-column fill-column)
+	(f90-find-breakpoint)
+	(f90-break-line 'no-update))
+      (setq go-on (and  (< (point) (marker-position end-region-mark))
+			(zerop (forward-line 1))))
+      (setq f90-cache-position (point)))
+    (setq f90-cache-position nil)
+    (if (string-match "XEmacs" emacs-version)
+	(zmacs-deactivate-region)
+      (deactivate-mark))))
+
+(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 "[ \t]*!")) (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))
+		     (let ((stop nil) notexist)
+		       (while (not stop)
+			 (setq notexist
+			       (not (re-search-backward 
+				     (concat "\\(" f90-blocks-re "\\)") nil t)))
+			 (if notexist
+			     (setq stop t)
+			   (setq stop
+				 (not (or (f90-in-string)
+					  (f90-in-comment))))))
+		       (not notexist)))
+	      (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)))))
+	    (if (not (zerop count))
+		(message "No matching beginning.")
+	      (f90-update-line)
+	      (if (eq f90-smart-end 'blink)
+		  (if (< (point) top-of-window)
+		      (message "Matches %s: %s"
+			       (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)))
+
+;; 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 (e c)
+    (insert last-command-char)
+    (if (string-match "XEmacs" emacs-version)
+	(progn
+	  (setq e (next-command-event))
+	  (setq c (event-to-character e)))
+      (setq c (read-event)))
+    ;; insert char if not equal to `?'
+    (if (or (eq c ??) (eq c help-char))
+	(f90-abbrev-help)
+      (if (string-match "XEmacs" emacs-version)
+	  (setq unread-command-event e)
+	(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 "\\("
+		   f90-keywords-re "\\|" f90-procedures-re "\\|"
+		   f90-hpf-keywords-re "\\|" f90-operators-re "\\)"))
+	  (ref-point (point-min)) state
+	  (modified (buffer-modified-p)) saveword back-point)
+      (goto-char beg)
+      (unwind-protect
+	  (while (re-search-forward keyword-re end t)
+	    (if (progn
+		  (setq state (parse-partial-sexp ref-point (point)))
+		  (or (nth 3 state) (nth 4 state)
+		      (save-excursion	; Check for cpp directive.
+			(beginning-of-line)
+			(skip-chars-forward " \t0-9")
+			(looking-at "#"))))
+		()
+	      (setq ref-point (point)
+		    back-point (save-excursion (backward-word 1) (point)))
+	      (setq saveword (buffer-substring back-point ref-point))
+	      (funcall change-word -1)
+	      (or (string= saveword (buffer-substring back-point ref-point))
+		  (setq modified t))))
+	(or modified (set-buffer-modified-p nil))))))
+
+
+(defun f90-current-defun ()
+  "Function to use for `add-log-current-defun-function' in F90 mode."
+  (save-excursion
+    (nth 1 (f90-beginning-of-subprogram))))
+
+(provide 'f90)
+
+;;; f90.el ends here
+;;; fortran-misc.el --- Routines than can be used with fortran mode.
+
+;;; Copyright (c) 1992 Free Software Foundation, Inc.
+
+;; Author: Various authors.
+;; Maintainer:
+;; Version
+;; Keywords: languages
+
+;; This file is not part of GNU Emacs.
+
+;; GNU Emacs 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, or (at your option)
+;; any later version.
+
+;; GNU Emacs 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 GNU Emacs; see the file COPYING.  If not, write to
+;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+
+;;; Commentary:
+
+;;; This file contains various routines that may be useful with GNU emacs
+;;; fortran mode, but just don't seem to fit in.
+
+(defun fortran-fill-statement ()
+  "Fill a fortran statement up to `fill-column'."
+  (interactive)
+  (if (save-excursion
+	(beginning-of-line)
+	(or (looking-at "[ \t]*$")
+	    (looking-at comment-line-start-skip)
+	    (and comment-start-skip
+		 (looking-at (concat "[ \t]*" comment-start-skip)))))
+      (fortran-indent-line)
+    (let ((opos (point)) (beg) (cfi))
+      (save-excursion
+	(fortran-next-statement)
+	(fortran-previous-statement)
+	(setq cfi (calculate-fortran-indent))
+	(setq beg (point)))
+      (save-excursion
+	(goto-char beg)
+	(save-excursion
+	  ;;(beginning-of-line)
+	  (if (or (not (= cfi (fortran-current-line-indentation)))
+		  (and (re-search-forward "^[ \t]*[0-9]+" (+ (point) 4) t)
+		       (not (fortran-line-number-indented-correctly-p))))
+	      (fortran-indent-to-column cfi)))
+	(while (progn 
+		 (forward-line 1)
+		 (or (looking-at "     [^ 0\n]")
+		     (looking-at "\t[1-9]")))
+	  (delete-indentation)
+	  (delete-char 2)
+	  (delete-horizontal-space))
+	(fortran-previous-statement)
+	(if (> (save-excursion (end-of-line) (current-column)) fill-column)
+	    (fortran-do-auto-fill)))
+      (if (< (point) opos) (goto-char opos))
+      (let ((cfi (calculate-fortran-indent)))
+	(if (< (current-column) cfi)
+	  (move-to-column cfi))))))
+  
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;;; The upcase/downcase and beautifier code is originally from Ralph Finch
+;;; (rfinch@water.ca.gov).
+;;;
+(defun fortran-downcase-subprogram ()
+  "Properly downcases the Fortran subprogram which contains point."
+  (interactive)
+  (save-excursion
+    (mark-fortran-subprogram)
+    (message "Downcasing subprogram...")
+    (fortran-downcase-region (point) (mark)))
+  (message "Downcasing subprogram...done."))
+
+(defun fortran-downcase-region (start end)
+  "Downcase region, excluding comment lines and anything
+between quote marks."
+  (interactive "r")
+  (fortran-case-region start end nil))
+
+(defun fortran-upcase-region (start end)
+  "Upcase region, excluding comment lines and anything
+between quote marks."
+  (interactive "r")
+  (fortran-case-region start end t))
+
+(defun fortran-upcase-subprogram ()
+  "Properly upcases the Fortran subprogram which contains point."
+  (interactive)
+  (save-excursion
+    (mark-fortran-subprogram)
+    (message "Upcasing subprogram...")
+    (fortran-upcase-region (point) (mark)))
+  (message "Upcasing subprogram...done."))
+
+(defun fortran-case-region (start end up)
+  "Upcase region if UP is t, downcase, if UP downcase region,
+ excluding comment lines and anything between quote marks."
+  (let* ((start-re-comment "^[cC*#]")
+	 (end-re-comment "$")
+	 (start-re-quote "'")
+	 (end-re-quote "\\('\\|$\\)")
+	 (start-re-dquote (char-to-string ?\"))
+	 (end-re-dquote (concat "\\(" start-re-dquote "\\|$\\)"))
+	 (strt) (fin))
+    (save-excursion
+      (save-restriction
+	(narrow-to-region start end)
+	(goto-char (point-min))
+	(if (inside-re start-re-comment end-re-comment)
+	    (re-search-forward end-re-comment end 0))
+	(if (inside-re start-re-quote end-re-quote)
+	    (re-search-forward end-re-quote end 0))
+	(if (inside-re start-re-dquote end-re-dquote)
+	    (re-search-forward end-re-dquote end 0))
+	(setq strt (point))
+	(while (< (point) (point-max))
+	  (re-search-forward
+	   (concat "\\(" start-re-comment "\\|"
+		   start-re-quote "\\|" start-re-dquote "\\)") end 0)
+	  (setq fin (point))
+	  (if up
+	      (upcase-region strt fin)
+	    (downcase-region strt fin))
+	  (if (inside-re start-re-comment end-re-comment)
+	      (re-search-forward end-re-comment end 0))
+	  (if (inside-re start-re-quote end-re-quote)
+	      (re-search-forward end-re-quote end 0))
+	  (if (inside-re start-re-dquote end-re-dquote)
+	      (re-search-forward end-re-dquote end 0))
+	  (setq strt (point)))))))
+
+(defun inside-re (start-re end-re)
+  "Returns t if inside a starting regexp and an ending regexp
+on the same line."
+  (interactive "s")
+  (let ((start-line) (end-line))
+    (save-excursion
+      (setq start-line (progn (beginning-of-line) (point)))
+      (setq end-line (progn (end-of-line) (point))))
+    (if (and (save-excursion
+	       (re-search-backward start-re start-line t))
+	     (save-excursion
+	       (re-search-forward end-re end-line t)))
+	t
+      nil)))
+
+;;; Note: Just as with some other routines, fortran-beautify-line
+;;;       assumes trailing blanks are not significant. Code may need
+;;;       to be adjusted to comply with this.
+				       
+
+(defun fortran-beautify-subprogram (&optional downit)
+  "Beautify Fortran subprogram:
+1) Remove trailing blanks.
+2) Replace all continuation characters with fortran-continuation-char.
+3) Replace all empty comment lines with blank lines.
+4) Replace all multiple blank lines with one blank line.
+5) Indent.
+6) With prefix arg, downcase the subprogram, avoiding comments and
+quoted strings."
+  (interactive "P")
+  (save-excursion
+    (mark-fortran-subprogram)
+    (message "Beautifying subprogram...")
+    (fortran-beautify-region (point) (mark) downit))
+  (message "Beautify subprogram...done."))
+
+(defun fortran-beautify-region (start end &optional downit)
+  "Beautify region in a Fortran program:
+1) Remove trailing blanks.
+2) Replace all continuation characters with fortran-continuation-char.
+3) Replace all empty comment lines with blank lines.
+4) Replace all multiple blank lines with one blank line.
+5) Indent.
+6) With prefix arg, downcase the region, avoiding comments and
+ quoted strings."
+  (interactive "r\nP")
+  (save-excursion
+    (save-restriction
+      (let ((m1 (make-marker))
+	    (m2 (make-marker)))
+	(set-marker m1 start)
+	(set-marker m2 end)
+	(indent-region start end nil)
+	(narrow-to-region m1 m2)
+	(goto-char (point-min))		; trailing blanks
+	(perform-replace "[ \t]+$" "" nil t nil)
+	(goto-char (point-min))		; continuation characters
+	(perform-replace (concat "^     [^ " fortran-continuation-string
+				 "]" )
+			 (concat "     " fortran-continuation-string)
+			 nil t nil)
+	(goto-char (point-min))		; empty comments
+	(perform-replace "^[cC][ \t]*$" "" nil t nil)
+	(goto-char (point-min))		; multiple blank lines
+	(perform-replace "\n\n\n+" "\n\n" nil t nil)
+	(if downit
+	    (fortran-downcase-region (point-min) (point-max)))
+	)))
+
+)
+;;; fortran.el --- Fortran mode for GNU Emacs
+
+;; Copyright (c) 1986, 1993, 1994, 1995 Free Software Foundation, Inc.
+
+;; Author: Michael D. Prange <prange@erl.mit.edu>
+;; Maintainer: bug-fortran-mode@erl.mit.edu
+;; Version 1.30.6-x (July 27, 1995)
+;; Keywords: languages
+
+;; This file is part of XEmacs.
+
+;; XEmacs 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, or (at your option)
+;; any later version.
+
+;; XEmacs 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 XEmacs; see the file COPYING.  If not, write to the Free
+;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+;; 02111-1307, USA.
+
+;;; Synched up with: FSF 19.34.
+
+;;; Commentary:
+
+;; Fortran mode has been upgraded and is now maintained by Stephen A. Wood
+;; (saw@cebaf.gov).  It now will use either fixed format continuation line
+;; markers (character in 6th column), or tab format continuation line style
+;; (digit after a TAB character.)  A auto-fill mode has been added to
+;; automatically wrap fortran lines that get too long.
+
+;; We acknowledge many contributions and valuable suggestions by
+;; Lawrence R. Dodd, Ralf Fassel, Ralph Finch, Stephen Gildea,
+;; Dr. Anil Gokhale, Ulrich Mueller, Mark Neale, Eric Prestemon, 
+;; Gary Sabot and Richard Stallman.
+
+;; This file may be used with GNU Emacs version 18.xx if the following
+;; variable and function substitutions are made.
+;;  Replace:
+;;   frame-width                           with screen-width
+;;   auto-fill-function                    with auto-fill-hook
+;;   comment-indent-function               with comment-indent-hook
+;;   (setq unread-command-events (list c)) with (setq unread-command-char c)
+
+;; Bugs to bug-fortran-mode@erl.mit.edu
+
+;;; Code:
+
+(defconst fortran-mode-version "version 1.30.6-x")
+
+(defgroup fortran nil
+  "Fortran mode for Emacs"
+  :group 'languages)
+
+(defgroup fortran-indent nil
+  "Indentation variables in Fortran mode"
+  :prefix "fortran-"
+  :group 'fortran)
+
+(defgroup fortran-comment nil
+  "Comment-handling variables in Fortran mode"
+  :prefix "fortran-"
+  :group 'fortran)
+
+
+;;;###autoload
+(defcustom fortran-tab-mode-default nil
+  "*Default tabbing/carriage control style for empty files in Fortran mode.
+A value of t specifies tab-digit style of continuation control.
+A value of nil specifies that continuation lines are marked
+with a character in column 6."
+  :type 'boolean
+  :group 'fortran-indent)
+
+;; Buffer local, used to display mode line.
+(defcustom fortran-tab-mode-string nil
+  "String to appear in mode line when TAB format mode is on."
+  :type '(choice (const nil) string)
+  :group 'fortran-indent)
+
+(defcustom fortran-do-indent 3
+  "*Extra indentation applied to DO blocks."
+  :type 'integer
+  :group 'fortran-indent)
+
+(defcustom fortran-if-indent 3
+  "*Extra indentation applied to IF blocks."
+  :type 'integer
+  :group 'fortran-indent)
+
+(defcustom fortran-structure-indent 3
+  "*Extra indentation applied to STRUCTURE, UNION, MAP and INTERFACE blocks."
+  :type 'integer
+  :group 'fortran-indent)
+
+(defcustom fortran-continuation-indent 5
+  "*Extra indentation applied to Fortran continuation lines."
+  :type 'integer
+  :group 'fortran-indent)
+
+(defcustom fortran-comment-indent-style 'fixed
+  "*nil forces comment lines not to be touched,
+'fixed makes fixed comment indentation to `fortran-comment-line-extra-indent'
+columns beyond `fortran-minimum-statement-indent-fixed' (for
+`indent-tabs-mode' of nil) or `fortran-minimum-statement-indent-tab' (for
+`indent-tabs-mode' of t), and 'relative indents to current
+Fortran indentation plus `fortran-comment-line-extra-indent'."
+  :type '(radio (const nil) (const fixed) (const relative))
+  :group 'fortran-indent)
+
+(defcustom fortran-comment-line-extra-indent 0
+  "*Amount of extra indentation for text within full-line comments."
+  :type 'integer
+  :group 'fortran-indent
+  :group 'fortran-comment)
+
+(defcustom comment-line-start nil
+  "*Delimiter inserted to start new full-line comment."
+  :type '(choice string (const nil))
+  :group 'fortran-comment)
+
+(defcustom comment-line-start-skip nil
+  "*Regexp to match the start of a full-line comment."
+  :type '(choice string (const nil))
+  :group 'fortran-comment)
+
+(defcustom fortran-minimum-statement-indent-fixed 6
+  "*Minimum statement indentation for fixed format continuation style."
+  :type 'integer
+  :group 'fortran-indent)
+
+(defcustom fortran-minimum-statement-indent-tab (max tab-width 6)
+  "*Minimum statement indentation for TAB format continuation style."
+  :type 'integer
+  :group 'fortran-indent)
+
+;; Note that this is documented in the v18 manuals as being a string
+;; of length one rather than a single character.
+;; The code in this file accepts either format for compatibility.
+(defcustom fortran-comment-indent-char " "
+  "*Single-character string inserted for Fortran comment indentation.
+Normally a space."
+  :type 'string
+  :group 'fortran-comment)
+
+(defcustom fortran-line-number-indent 1
+  "*Maximum indentation for Fortran line numbers.
+5 means right-justify them within their five-column field."
+  :type 'integer
+  :group 'fortran-indent)
+
+(defcustom fortran-check-all-num-for-matching-do nil
+  "*Non-nil causes all numbered lines to be treated as possible DO loop ends."
+  :type 'boolean
+  :group 'fortran)
+
+(defcustom fortran-blink-matching-if nil
+  "*Non-nil causes \\[fortran-indent-line] on ENDIF statement to blink on matching IF.
+Also, from an ENDDO statement blink on matching DO [WHILE] statement."
+  :type 'boolean
+  :group 'fortran)
+
+(defcustom fortran-continuation-string "$"
+  "*Single-character string used for Fortran continuation lines.
+In fixed format continuation style, this character is inserted in
+column 6 by \\[fortran-split-line] to begin a continuation line.
+Also, if \\[fortran-indent-line] finds this at the beginning of a line, it will
+convert the line into a continuation line of the appropriate style.
+Normally $."
+  :type 'string
+  :group 'fortran)
+
+(defcustom fortran-comment-region "c$$$"
+  "*String inserted by \\[fortran-comment-region]\
+ at start of each line in region."
+  :type 'string
+  :group 'fortran-comment)
+
+(defcustom fortran-electric-line-number t
+  "*Non-nil causes line number digits to be moved to the correct column as\
+ typed."
+  :type 'boolean
+  :group 'fortran)
+
+(defcustom fortran-startup-message t
+  "*Non-nil displays a startup message when Fortran mode is first called."
+  :type 'boolean
+  :group 'fortran)
+
+(defvar fortran-column-ruler-fixed
+  "0   4 6  10        20        30        40        5\
+\0        60        70\n\
+\[   ]|{   |    |    |    |    |    |    |    |    \
+\|    |    |    |    |}\n"
+  "*String displayed above current line by \\[fortran-column-ruler].
+This variable used in fixed format mode.")
+
+(defvar fortran-column-ruler-tab
+  "0       810        20        30        40        5\
+\0        60        70\n\
+\[   ]|  { |    |    |    |    |    |    |    |    \
+\|    |    |    |    |}\n"
+  "*String displayed above current line by \\[fortran-column-ruler].
+This variable used in TAB format mode.")
+
+(defconst bug-fortran-mode "bug-fortran-mode@erl.mit.edu"
+  "Address of mailing list for Fortran mode bugs.")
+
+(defvar fortran-mode-syntax-table nil
+  "Syntax table in use in Fortran mode buffers.")
+
+(defvar fortran-analyze-depth 100
+  "Number of lines to scan to determine whether to use fixed or TAB format\
+ style.")
+
+(defcustom fortran-break-before-delimiters t
+  "*Non-nil causes `fortran-fill' to break lines before delimiters."
+  :type 'boolean
+  :group 'fortran)
+
+(if fortran-mode-syntax-table
+    ()
+  (setq fortran-mode-syntax-table (make-syntax-table))
+  (modify-syntax-entry ?\; "w" fortran-mode-syntax-table)
+  (modify-syntax-entry ?\r " " fortran-mode-syntax-table)
+  (modify-syntax-entry ?+  "." fortran-mode-syntax-table)
+  (modify-syntax-entry ?-  "." fortran-mode-syntax-table)
+  (modify-syntax-entry ?=  "." fortran-mode-syntax-table)
+  ;; XEmacs change
+  ;;(modify-syntax-entry ?* "." fortran-mode-syntax-table)
+  (modify-syntax-entry ?/  "."  fortran-mode-syntax-table)
+  (modify-syntax-entry ?\' "\"" fortran-mode-syntax-table)
+  (modify-syntax-entry ?\" "\"" fortran-mode-syntax-table)
+  (modify-syntax-entry ?\\ "/"  fortran-mode-syntax-table)
+  (modify-syntax-entry ?.  "_"  fortran-mode-syntax-table)
+  (modify-syntax-entry ?_  "_"  fortran-mode-syntax-table)
+  (modify-syntax-entry ?$  "_"  fortran-mode-syntax-table)
+  (modify-syntax-entry ?@  "_"  fortran-mode-syntax-table)
+  (modify-syntax-entry ?\! "<"  fortran-mode-syntax-table)
+  ;; XEmacs change
+  ;;(modify-syntax-entry ?\n ">" fortran-mode-syntax-table)
+
+  ;; XEmacs: an attempt to make font-lock understand fortran comments.
+  (modify-syntax-entry ?\n "> 1" fortran-mode-syntax-table)
+  (modify-syntax-entry ?*  ". 2" fortran-mode-syntax-table)
+  (modify-syntax-entry ?c  "w 2" fortran-mode-syntax-table)
+  (modify-syntax-entry ?C  "w 2" fortran-mode-syntax-table)
+
+  )
+
+;; Comments are real pain in Fortran because there is no way to represent the
+;; standard comment syntax in an Emacs syntax table (we can for VAX-style).
+;; Therefore an unmatched quote in a standard comment will throw fontification
+;; off on the wrong track.  So we do syntactic fontification with regexps.
+
+;; Regexps done by simon@gnu with help from Ulrik Dickow <dickow@nbi.dk> and
+;; probably others Si's forgotten about (sorry).
+
+(defconst fortran-font-lock-keywords-1 nil
+  "Subdued level highlighting for Fortran mode.")
+
+(defconst fortran-font-lock-keywords-2 nil
+  "Medium level highlighting for Fortran mode.")
+
+(defconst fortran-font-lock-keywords-3 nil
+  "Gaudy level highlighting for Fortran mode.")
+
+(let ((comment-chars "c!*")
+      (fortran-type-types
+;     (make-regexp
+;      (let ((simple-types '("character" "byte" "integer" "logical"
+;			    "none" "real" "complex"
+;			    "double[ \t]*precision" "double[ \t]*complex"))
+;	    (structured-types '("structure" "union" "map"))
+;	    (other-types '("record" "dimension" "parameter" "common" "save"
+;			   "external" "intrinsic" "data" "equivalence")))
+;	(append
+;	 (mapcar (lambda (x) (concat "implicit[ \t]*" x)) simple-types)
+;	 simple-types
+;	 (mapcar (lambda (x) (concat "end[ \t]*" x)) structured-types)
+;	 structured-types
+;	 other-types)))
+	  (concat "byte\\|c\\(haracter\\|om\\(mon\\|plex\\)\\)\\|"
+                  "d\\(ata\\|imension\\|ouble"
+                  "[ \t]*\\(complex\\|precision\\)\\)\\|"
+                  "e\\(nd[ \t]*\\(map\\|structure\\|union\\)\\|"
+                  "quivalence\\|xternal\\)\\|"
+                  "i\\(mplicit[ \t]*\\(byte\\|"
+                  "c\\(haracter\\|omplex\\)\\|"
+                  "double[ \t]*\\(complex\\|precision\\)\\|"
+                  "integer\\|logical\\|none\\|real\\)\\|"
+                  "nt\\(eger\\|rinsic\\)\\)\\|"
+                  "logical\\|map\\|none\\|parameter\\|re\\(al\\|cord\\)\\|"
+                  "s\\(ave\\|tructure\\)\\|union"))
+	 (fortran-keywords
+;	  ("continue" "format" "end" "enddo" "if" "then" "else" "endif"
+;	   "elseif" "while" "inquire" "stop" "return" "include" "open"
+;	   "close" "read" "write" "format" "print")
+	  (concat "c\\(lose\\|ontinue\\)\\|"
+		  "e\\(lse\\(\\|if\\)\\|nd\\(\\|do\\|if\\)\\)\\|format\\|"
+		  "i\\(f\\|n\\(clude\\|quire\\)\\)\\|open\\|print\\|"
+		  "re\\(ad\\|turn\\)\\|stop\\|then\\|w\\(hile\\|rite\\)"))
+        (fortran-logicals
+;       ("and" "or" "not" "lt" "le" "eq" "ge" "gt" "ne" "true" "false")
+         "and\\|eq\\|false\\|g[et]\\|l[et]\\|n\\(e\\|ot\\)\\|or\\|true"))
+
+  (setq fortran-font-lock-keywords-1
+   (list
+    ;;
+    ;; Fontify syntactically (assuming strings cannot be quoted or span lines).
+    (cons (concat "^[" comment-chars "].*") 'font-lock-comment-face)
+    '(fortran-match-!-comment . font-lock-comment-face)
+    (list (concat "^[^" comment-chars "\t\n]" (make-string 71 ?.) "\\(.*\\)")
+	  '(1 font-lock-comment-face))
+    '("'[^'\n]*'?" . font-lock-string-face)
+    ;;
+    ;; Program, subroutine and function declarations, plus calls.
+    (list (concat "\\<\\(block[ \t]*data\\|call\\|entry\\|function\\|"
+		  "program\\|subroutine\\)\\>[ \t]*\\(\\(\\sw\\|\\s_\\)+\\)?")
+	  '(1 font-lock-keyword-face)
+	  '(2 font-lock-function-name-face nil t))))
+
+  (setq fortran-font-lock-keywords-2
+   (append fortran-font-lock-keywords-1
+    (list
+     ;;
+     ;; Fontify all type specifiers (must be first; see below).
+     (cons (concat "\\<\\(" fortran-type-types "\\)\\>") 'font-lock-type-face)
+     ;;
+     ;; Fontify all builtin keywords (except logical, do and goto; see below).
+     (concat "\\<\\(" fortran-keywords "\\)\\>")
+     ;;
+     ;; Fontify all builtin operators.
+     (concat "\\.\\(" fortran-logicals "\\)\\.")
+     ;;
+     ;; Fontify do/goto keywords and targets, and goto tags.
+     (list "\\<\\(do\\|go *to\\)\\>[ \t]*\\([0-9]+\\)?"
+	   '(1 font-lock-keyword-face)
+	   '(2 font-lock-reference-face nil t))
+     (cons "^ *\\([0-9]+\\)" 'font-lock-reference-face))))
+
+  (setq fortran-font-lock-keywords-3
+   (append
+    ;;
+    ;; The list `fortran-font-lock-keywords-1'.
+    fortran-font-lock-keywords-1
+    ;;
+    ;; Fontify all type specifiers plus their declared items.
+    (list
+     (list (concat "\\<\\(" fortran-type-types "\\)\\>[ \t(/]*\\(*\\)?")