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[Emacs-diffs] Changes to emacs/lisp/progmodes/f90.el


From: Glenn Morris
Subject: [Emacs-diffs] Changes to emacs/lisp/progmodes/f90.el
Date: Wed, 01 May 2002 11:29:31 -0400

Index: emacs/lisp/progmodes/f90.el
diff -c emacs/lisp/progmodes/f90.el:1.44 emacs/lisp/progmodes/f90.el:1.45
*** emacs/lisp/progmodes/f90.el:1.44    Mon Apr 29 19:23:03 2002
--- emacs/lisp/progmodes/f90.el Wed May  1 11:29:30 2002
***************
*** 243,249 ****
    :group 'f90)
  
  (defconst f90-xemacs-flag (string-match "XEmacs\\|Lucid" emacs-version)
!   "Non-nil means f90-mode thinks it is running under XEmacs.")
  
  (defconst f90-keywords-re
    (regexp-opt '("allocatable" "allocate" "assign" "assignment" "backspace"
--- 243,249 ----
    :group 'f90)
  
  (defconst f90-xemacs-flag (string-match "XEmacs\\|Lucid" emacs-version)
!   "Non-nil means F90 mode thinks it is running under XEmacs.")
  
  (defconst f90-keywords-re
    (regexp-opt '("allocatable" "allocate" "assign" "assignment" "backspace"
***************
*** 312,318 ****
  
  (defconst f90-hpf-keywords-re
    (regexp-opt
!    ;; 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"
--- 312,318 ----
  
  (defconst f90-hpf-keywords-re
    (regexp-opt
!    ;; 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"
***************
*** 326,345 ****
       "parity_prefix" "parity_scatter" "parity_suffix" "popcnt" "poppar"
       "processors_shape" "product_prefix" "product_scatter"
       "product_suffix" "sum_prefix" "sum_scatter" "sum_suffix"
!      ;; Directives
       "align" "distribute" "dynamic" "independent" "inherit" "processors"
       "realign" "redistribute" "template"
!      ;; Keywords
       "block" "cyclic" "extrinsic" "new" "onto" "pure" "with") 'words)
    "Regexp for all HPF keywords, procedures and directives.")
  
! ;; Highlighting patterns
  
  (defvar f90-font-lock-keywords-1
    (list
!    ;; Special highlighting of "module procedure foo-list"
     '("\\<\\(module[ \t]*procedure\\)\\>" (1 font-lock-keyword-face))
!    ;; Highlight definition of new type
  ;;;   '("\\<\\(type\\)[ \t]*\\(.*::[ \t]*\\|[ \t]+\\)\\(\\sw+\\)"
  ;;;     (1 font-lock-keyword-face) (3 font-lock-function-name-face))
     ;; Other functions and declarations.
--- 326,345 ----
       "parity_prefix" "parity_scatter" "parity_suffix" "popcnt" "poppar"
       "processors_shape" "product_prefix" "product_scatter"
       "product_suffix" "sum_prefix" "sum_scatter" "sum_suffix"
!      ;; Directives.
       "align" "distribute" "dynamic" "independent" "inherit" "processors"
       "realign" "redistribute" "template"
!      ;; Keywords.
       "block" "cyclic" "extrinsic" "new" "onto" "pure" "with") 'words)
    "Regexp for all HPF keywords, procedures and directives.")
  
! ;; Highlighting patterns.
  
  (defvar f90-font-lock-keywords-1
    (list
!    ;; Special highlighting of "module procedure".
     '("\\<\\(module[ \t]*procedure\\)\\>" (1 font-lock-keyword-face))
!    ;; Highlight declaration of derived type.
  ;;;   '("\\<\\(type\\)[ \t]*\\(.*::[ \t]*\\|[ \t]+\\)\\(\\sw+\\)"
  ;;;     (1 font-lock-keyword-face) (3 font-lock-function-name-face))
     ;; Other functions and declarations.
***************
*** 353,370 ****
    (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 t) (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-constant-face nil t))
      '("^[ \t0-9]*\\(\\(\\sw+\\)[ \t]*:[ \t]*\\)?\\(\\(if\\|\
  do\\([ \t]*while\\)?\\|select[ \t]*case\\|where\\|forall\\)\\)\\>"
        (2 font-lock-constant-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))
--- 353,370 ----
    (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 t) (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-constant-face nil t))
      '("^[ \t0-9]*\\(\\(\\sw+\\)[ \t]*:[ \t]*\\)?\\(\\(if\\|\
  do\\([ \t]*while\\)?\\|select[ \t]*case\\|where\\|forall\\)\\)\\>"
        (2 font-lock-constant-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))
***************
*** 387,393 ****
             f90-keywords-level-3-re
             f90-operators-re
             (list f90-procedures-re '(1 font-lock-keyword-face keep))
!            "\\<real\\>"                       ; Avoid overwriting real defs.
             ))
    "Highlights all F90 keywords and intrinsic procedures.")
  
--- 387,393 ----
             f90-keywords-level-3-re
             f90-operators-re
             (list f90-procedures-re '(1 font-lock-keyword-face keep))
!            "\\<real\\>"                       ; avoid overwriting real defs
             ))
    "Highlights all F90 keywords and intrinsic procedures.")
  
***************
*** 400,426 ****
    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.")
  
  (unless 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.")
  
--- 400,426 ----
    f90-font-lock-keywords-2
    "*Default expressions to highlight in F90 mode.")
  
! 
  (defvar f90-mode-syntax-table nil
    "Syntax table in use in F90 mode buffers.")
  
  (unless f90-mode-syntax-table
    (setq f90-mode-syntax-table (make-syntax-table))
!   (modify-syntax-entry ?\! "<"  f90-mode-syntax-table) ; begin 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) ; punctuation
!   (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
  
! 
  (defvar f90-mode-map ()
    "Keymap used in F90 mode.")
  
***************
*** 435,441 ****
    (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)
--- 435,441 ----
    (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)
***************
*** 449,455 ****
    (define-key f90-mode-map "/"        'f90-electric-insert))
  
  
- ;; menus
  (if f90-xemacs-flag
      (defvar f90-xemacs-menu
        '("F90"
--- 449,454 ----
***************
*** 468,510 ****
        ["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)
--- 467,506 ----
        ["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)
***************
*** 540,560 ****
  
    (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))
--- 536,557 ----
  
    (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))
***************
*** 566,587 ****
      '("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)
--- 563,581 ----
      '("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)
***************
*** 590,597 ****
    (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]
--- 584,590 ----
    (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]
***************
*** 604,631 ****
  
  ;; 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]"))
--- 597,644 ----
  
  ;; Regexps for finding program structures.
  (defconst f90-blocks-re
!   (concat "\\(block[ \t]*data\\|"
!           (regexp-opt '("do" "if" "interface" "function" "module" "program"
!                         "select" "subroutine" "type" "where" "forall"))
!           "\\)\\>")
!   "Regexp potentially indicating a \"block\" of F90 code.")
! 
  (defconst f90-program-block-re
!   (regexp-opt '("program" "module" "subroutine" "function") 'paren)
!   "Regexp used to locate the start/end of a \"subprogram\".")
! 
  (defconst f90-else-like-re
!   "\\(else\\([ \t]*if\\|where\\)?\\|case[ \t]*\\(default\\|(\\)\\)"
!   "Regexp matching an ELSE IF, ELSEWHERE, CASE statement.")
! 
  (defconst f90-end-if-re
!   (concat "end[ \t]*"
!           (regexp-opt '("if" "select" "where" "forall") 'paren)
!           "\\>")
!   "Regexp matching the end of an IF, SELECT, WHERE, FORALL block.")
! 
  (defconst f90-end-type-re
!   "end[ \t]*\\(type\\|interface\\|block[ \t]*data\\)\\>"
!   "Regexp matching the end of a TYPE, INTERFACE, BLOCK DATA section.")
! 
  (defconst f90-type-def-re
!   "\\<\\(type\\)\\([^(\n]*\\)\\(::\\)?[ \t]*\\b\\(\\sw+\\)"
!   "Regexp matching the declaration of a variable of derived type.")
! 
! (defconst f90-no-break-re
!   (regexp-opt '("**" "//" "=>") 'paren)
!   "Regexp specifying where not to break lines when filling.")
! 
! (defvar f90-cache-position nil
!   "Temporary position used to speed up region operations.")
  (make-variable-buffer-local 'f90-cache-position)
! 
! (defvar f90-imenu-flag nil
!   "Non-nil means this buffer already has an imenu.")
! (make-variable-buffer-local 'f90-imenu-flag)
  
  
! ;; 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]"))
***************
*** 638,651 ****
        (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+\\)")
--- 651,664 ----
        (concat
         "^[ \t0-9]*"
         "\\("
!        ;; At least three non-space characters before function/subroutine.
!        ;; Check that the last three non-space characters do not 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+\\)")
***************
*** 655,675 ****
  (defun f90-add-imenu-menu ()
    "Add an imenu menu to the menubar."
    (interactive)
!   (if f90-imenu
        (message "%s" "F90-imenu already exists.")
      (imenu-add-to-menubar "F90-imenu")
      (redraw-frame (selected-frame))
!     (setq f90-imenu t)))
  
! (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.
  (or f90-xemacs-flag (eval-when-compile (require 'imenu)))
  
  
! ;; abbrevs have generally two letters, except standard types `c, `i, `r, `t
  (defvar f90-mode-abbrev-table nil)
  (unless f90-mode-abbrev-table
    (let ((ac abbrevs-changed))
--- 668,688 ----
  (defun f90-add-imenu-menu ()
    "Add an imenu menu to the menubar."
    (interactive)
!   (if f90-imenu-flag
        (message "%s" "F90-imenu already exists.")
      (imenu-add-to-menubar "F90-imenu")
      (redraw-frame (selected-frame))
!     (setq f90-imenu-flag t)))
  
! (put 'f90-add-imenu-menu 'menu-enable '(not f90-imenu-flag))
  
  
! ;; When compiling under GNU Emacs, load imenu during compilation.
! ;; If you have 19.22 or earlier, comment this out, or get imenu.
  (or f90-xemacs-flag (eval-when-compile (require 'imenu)))
  
  
! ;; Abbrevs have generally two letters, except standard types `c, `i, `r, `t.
  (defvar f90-mode-abbrev-table nil)
  (unless f90-mode-abbrev-table
    (let ((ac abbrevs-changed))
***************
*** 730,736 ****
      (setq abbrevs-changed ac)))
  
  (defcustom f90-mode-hook nil
!   "Hook run by F90 mode."
    :type 'hook
    :options '(f90-add-imenu-menu)
    :group 'f90)
--- 743,749 ----
      (setq abbrevs-changed ac)))
  
  (defcustom f90-mode-hook nil
!   "Hook run when entering F90 mode."
    :type 'hook
    :options '(f90-add-imenu-menu)
    :group 'f90)
***************
*** 739,747 ****
  (defun f90-mode ()
    "Major mode for editing Fortran 90,95 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\
--- 752,760 ----
  (defun f90-mode ()
    "Major mode for editing Fortran 90,95 code in free format.
  
! \\[f90-indent-new-line] indents current line and creates a new\
   indented line.
! \\[f90-indent-line] indents the current line.
  \\[f90-indent-subprogram] indents the current subprogram.
  
  Type `? or `\\[help-command] to display a list of built-in\
***************
*** 752,796 ****
  
  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-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."
--- 765,809 ----
  
  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-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."
***************
*** 818,824 ****
    (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
    (when f90-xemacs-flag
      (put 'f90-mode 'font-lock-keywords-case-fold-search t)
      (when (and (featurep 'menubar)
--- 831,837 ----
    (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.
    (when f90-xemacs-flag
      (put 'f90-mode 'font-lock-keywords-case-fold-search t)
      (when (and (featurep 'menubar)
***************
*** 826,832 ****
                 (not (assoc "F90" current-menubar)))
        (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
--- 839,845 ----
                 (not (assoc "F90" current-menubar)))
        (set-buffer-menubar (copy-sequence current-menubar))
        (add-submenu nil f90-xemacs-menu)))
!   ;; XEmacs: Does not 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
***************
*** 841,851 ****
    (set (make-local-variable 'add-log-current-defun-function)
         #'f90-current-defun)
    (run-hooks 'f90-mode-hook))
  
! ;; inline-functions
  (defsubst f90-in-string ()
    "Return non-nil if point is inside a string.
! Checks from point-min, or f90-cache-position, if that is non-nil
  and lies before point."
    (let ((beg-pnt
         (if (and f90-cache-position (> (point) f90-cache-position))
--- 854,865 ----
    (set (make-local-variable 'add-log-current-defun-function)
         #'f90-current-defun)
    (run-hooks 'f90-mode-hook))
+ 
  
! ;; Inline-functions.
  (defsubst f90-in-string ()
    "Return non-nil if point is inside a string.
! Checks from `point-min', or `f90-cache-position', if that is non-nil
  and lies before point."
    (let ((beg-pnt
         (if (and f90-cache-position (> (point) f90-cache-position))
***************
*** 855,861 ****
  
  (defsubst f90-in-comment ()
    "Return non-nil if point is inside a comment.
! Checks from point-min, or f90-cache-position, if that is non-nil
  and lies before point."
    (let ((beg-pnt
         (if (and f90-cache-position (> (point) f90-cache-position))
--- 869,875 ----
  
  (defsubst f90-in-comment ()
    "Return non-nil if point is inside a comment.
! Checks from `point-min', or `f90-cache-position', if that is non-nil
  and lies before point."
    (let ((beg-pnt
         (if (and f90-cache-position (> (point) f90-cache-position))
***************
*** 910,923 ****
        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."
--- 924,936 ----
        type)))
  
  (defsubst f90-equal-symbols (a b)
!   "Compare strings A and B 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 return a single char when matching an empty regexp.
! ;; The next 2 functions are therefore 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."
***************
*** 998,1003 ****
--- 1011,1021 ----
        (list (match-string 1) (match-string 3))))
  
  (defsubst f90-comment-indent ()
+   "Return the indentation to be used for a comment starting at point.
+ Used for `comment-indent-function' by F90 mode.
+ \"!!!\", `f90-directive-comment-re', variable `f90-comment-region' return 0.
+ `f90-indented-comment-re' (if not trailing code) calls `f90-calculate-indent'.
+ Any other type return `comment-column', leaving at least one space after 
code."
    (cond ((looking-at "!!!") 0)
        ((and f90-directive-comment-re
              (looking-at f90-directive-comment-re)) 0)
***************
*** 1138,1144 ****
                 (goto-char pnt)
                 (beginning-of-line)
                 (cond ((looking-at "[ \t]*$"))
!                      ((looking-at "[ \t]*#") ; Check for cpp directive.
                        (setq icol 0))
                       (t
                        (skip-chars-forward " \t0-9")
--- 1156,1162 ----
                 (goto-char pnt)
                 (beginning-of-line)
                 (cond ((looking-at "[ \t]*$"))
!                      ((looking-at "[ \t]*#") ; check for cpp directive
                        (setq icol 0))
                       (t
                        (skip-chars-forward " \t0-9")
***************
*** 1155,1164 ****
                 ))))
      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)
--- 1173,1182 ----
                 ))))
      icol))
  
  (defun f90-previous-statement ()
    "Move point to beginning of the previous F90 statement.
! Return nil if no previous statement is found.
! A statement is a line which is neither blank nor a comment."
    (interactive)
    (let (not-first-statement)
      (beginning-of-line)
***************
*** 1180,1186 ****
  
  (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")
--- 1198,1204 ----
  
  (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")
***************
*** 1197,1208 ****
      (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")
--- 1215,1226 ----
      (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")
***************
*** 1277,1283 ****
    (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))
--- 1295,1301 ----
    (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-nos
      (if (save-excursion (and (f90-previous-statement) (f90-line-continued)))
        (progn (setq no-line-number t) (skip-chars-forward " \t"))
        (f90-indent-line-no))
***************
*** 1305,1316 ****
    (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 "&"))
--- 1323,1333 ----
    (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)
!     (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 "&"))
***************
*** 1328,1334 ****
        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]*$\\)")
                (progn (f90-indent-line 'no-update)
--- 1345,1351 ----
        struct beg-struct end-struct)
      (set-marker end-region-mark end-region)
      (goto-char beg-region)
!     ;; First find a line which is not a continuation line or comment.
      (beginning-of-line)
      (while (and (looking-at "[ \t]*[0-9]*\\(!\\|#\\|[ \t]*$\\)")
                (progn (f90-indent-line 'no-update)
***************
*** 1338,1344 ****
      (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))
--- 1355,1361 ----
      (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))
***************
*** 1360,1369 ****
      (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)
--- 1377,1388 ----
      (if struct (setq block-list (cons struct block-list)))
      (while (and (f90-line-continued) (zerop (forward-line 1))
                (< (point) end-region-mark))
!       (if (looking-at "[ \t]*!")
!           (f90-indent-to (f90-comment-indent))
!         (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)
***************
*** 1394,1401 ****
                   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)
--- 1413,1420 ----
                   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)
***************
*** 1405,1419 ****
             (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)
--- 1424,1441 ----
             (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 (looking-at "[ \t]*!")
!             (f90-indent-to (f90-comment-indent))
!           (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)
***************
*** 1423,1429 ****
        (deactivate-mark))))
  
  (defun f90-indent-subprogram ()
!   "Properly indent the subprogram which contains point."
    (interactive)
    (save-excursion
      (let (program)
--- 1445,1451 ----
        (deactivate-mark))))
  
  (defun f90-indent-subprogram ()
!   "Properly indent the subprogram containing point."
    (interactive)
    (save-excursion
      (let (program)
***************
*** 1439,1445 ****
        (indent-region (point) (mark) nil)
        (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.
  Unless in a string or comment, or if the optional argument NO-UPDATE
--- 1461,1466 ----
***************
*** 1474,1482 ****
    "Break line if non-white characters beyond `fill-column'.
  Update keyword case first."
    (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)))
--- 1495,1503 ----
    "Break line if non-white characters beyond `fill-column'.
  Update keyword case first."
    (interactive)
!   ;; Break line before or after last delimiter (non-word char) if
    ;; position is beyond fill-column.
!   ;; Will not break **, //, or => (as specified by f90-no-break-re).
    (f90-update-line)
    (while (> (current-column) fill-column)
      (let ((pos-mark (point-marker)))
***************
*** 1521,1529 ****
      (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)
--- 1542,1550 ----
      (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)
***************
*** 1539,1544 ****
--- 1560,1569 ----
  
  (defun f90-block-match (beg-block beg-name end-block end-name)
    "Match end-struct with beg-struct and complete end-block if possible.
+ BEG-BLOCK is the type of block as indicated at the start (e.g., do).
+ BEG-NAME is the block start name (may be nil).
+ END-BLOCK is the type of block as indicated at the end (may be nil).
+ END-NAME is the block end name (may be nil).
  Leave point at the end of line."
    (search-forward "end" (line-end-position))
    (catch 'no-match
***************
*** 1567,1573 ****
      (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)
--- 1592,1598 ----
      (if (not (looking-at "[ \t]*!")) (delete-horizontal-space))))
  
  (defun f90-match-end ()
!   "From an end block statement, find the corresponding block and name."
    (interactive)
    (let ((count 1) (top-of-window (window-start)) (matching-beg nil)
        (end-point (point)) (case-fold-search t)
***************
*** 1627,1633 ****
      (insert "end")
      (f90-indent-new-line)))
  
! ;; abbrevs and keywords
  
  (defun f90-abbrev-start ()
    "Typing `\\[help-command] or `? lists all the F90 abbrevs.
--- 1652,1658 ----
      (insert "end")
      (f90-indent-new-line)))
  
! ;; Abbrevs and keywords.
  
  (defun f90-abbrev-start ()
    "Typing `\\[help-command] or `? lists all the F90 abbrevs.
***************
*** 1639,1645 ****
          (setq c (read-event))
        (setq e (next-command-event)
              c (event-to-character e)))
!     ;; insert char if not equal to `?'
      (if (or (eq c ??) (eq c help-char))
        (f90-abbrev-help)
        (if f90-xemacs-flag
--- 1664,1670 ----
          (setq c (read-event))
        (setq e (next-command-event)
              c (event-to-character e)))
!     ;; Insert char if not equal to `?'.
      (if (or (eq c ??) (eq c help-char))
        (f90-abbrev-help)
        (if f90-xemacs-flag
***************
*** 1654,1659 ****
--- 1679,1685 ----
    (message "Listing abbrev table...done"))
  
  (defun f90-prepare-abbrev-list-buffer ()
+   "Create a buffer listing the F90 mode abbreviations."
    (save-excursion
      (set-buffer (get-buffer-create "*Abbrevs*"))
      (erase-buffer)
***************
*** 1695,1700 ****
--- 1721,1728 ----
  
  ;; Change the keywords according to argument.
  (defun f90-change-keywords (change-word &optional beg end)
+   "Change the case of F90 keywords in the region (if specified) or buffer.
+ CHANGE-WORD should be one of 'upcase-word, 'downcase-word, capitalize-word."
    (save-excursion
      (setq beg (if beg beg (point-min)))
      (setq end (if end end (point-max)))
***************
*** 1710,1716 ****
            (unless (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 "#"))))
--- 1738,1744 ----
            (unless (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 "#"))))



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