-;; f90.el --- Fortran-90 mode (free format) for GNU Emacs and GNU XEmacs.
-;; Copyright (C) 1995 Free Software Foundation, Inc.
+;;; f90.el --- Fortran-90 mode (free format)
-;; Author: Torbj\"orn Einarsson <tfkte@fy.chalmers.se>
-;; Created: Apr. 13, 1995
+;; Copyright (C) 1995, 1996, 1997, 2000, 2004 Free Software Foundation, Inc.
+
+;; Author: Torbj\"orn Einarsson <Torbjorn.Einarsson@era.ericsson.se>
+;; Maintainer: Glenn Morris <gmorris@ast.cam.ac.uk>
;; Keywords: fortran, f90, languages
-;; This program is free software; you can redistribute it and/or modify
+;; This file is 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 of the License, or
-;; (at your option) any later version.
+;; the Free Software Foundation; either version 2, or (at your option)
+;; any later version.
-;; This program is distributed in the hope that it will be useful,
+;; 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 this program; if not, write to the Free Software
-;; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+;; along with GNU Emacs; see the file COPYING. If not, write to the
+;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
;;; Commentary:
-;; Smart mode for editing F90 programs in FREE FORMAT.
+
+;; Major mode for editing F90 programs in FREE FORMAT.
+;; The minor language revision F95 is also supported (with font-locking).
+
;; 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.
+;; features in F90 including HPF (High Performance Fortran) structures.
+;; The basic feature provides 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).
+;; function which joins continued lines, etc.
+
+;; To facilitate typing, a fairly complete list of abbreviations is provided.
+;; All abbreviations begin with the backquote character "`"
+;; (this requires modification of the syntax-table).
+;; For example, `i expands to integer (if abbrev-mode is on).
-;; There are two separate features for highlighting the code.
+;; There are two separate features for altering the appearance of code:
;; 1) Upcasing or capitalizing of all keywords.
-;; 2) Different colors/fonts for different structures. (X-windows)
-;; (using either font-lock-mode or hilit19)
-;; Automatic upcase of downcase of keywords is controlled by the parameter
-;; f90-auto-keyword-case.
-;; To use hilit19 it must be loaded before this file. Then the parameter
-;; f90-auto-hilit19 determines if each line should be updated automatically.
+;; 2) Colors/fonts using font-lock-mode.
+;; Automatic upcase or downcase of keywords is controlled by the variable
+;; f90-auto-keyword-case.
;; The indentations of lines starting with ! is determined by the first of the
-;; following matches:
-;; start-string indent variable holding start-string
-;; !!! 0
-;; !hpf$ 0 f90-directive-comment (default nil)
-;; !!$ 0 f90-comment-region (default !!$)
-;; ! as code f90-indented-comment (a regexp, default !)
-;; default comment-column
-;; Ex: Here is the result of three different settings of f90-indented-comment
-;; f90-indented-comment !-indentation !!-indentation
-;; ! as code as code
-;; !! comment-column as code
-;; ![^!] as code comment-column
-;; Trailing comments are indented to comment-column with indent-for-comment M-;
-;; f90-comment-region (C-c;) toggles insertion of f90-comment-region in region.
-
-;; One common convention for free vs. fixed format is that free-format files
-;; have the ending .f90 while the fixed format files have the ending .f.
-;; To make f90-mode work, put this file in, for example, your directory
-;; ~/lisp, and be sure that you have the following in your .emacs-file
-;; (setq load-path (append load-path '("~/lisp")))
-;; (autoload 'f90-mode "f90"
-;; "Major mode for editing Fortran 90 code in free format." t)
-;; (setq auto-mode-alist (append auto-mode-alist
-;; (list '("\\.f90$" . f90-mode))))
-;; Once you have entered f90-mode, you may get more info by using
-;; the command describe-mode (C-h m). For online help describing various
-;; functions use C-h f <Name of function you want described>
+;; following matches (values in the left column are the defaults):
+
+;; 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.
+;; The function f90-comment-region toggles insertion of
+;; the variable f90-comment-region in every line of the region.
+
+;; One common convention for free vs. fixed format is that free format files
+;; have the ending .f90 or .f95 while fixed format files have the ending .f.
+;; Emacs automatically loads Fortran files in the appropriate mode based
+;; on extension. You can modify this by adjusting the variable auto-mode-alist.
+;; For example:
+;; (add-to-list 'auto-mode-alist '("\\.f\\'" . f90-mode))
-;; To customize the f90-mode for your taste, use, for example:
-;; (you don't have to specify values for all the parameters below)
-;;(setq f90-mode-hook
+;; Once you have entered f90-mode, you may get more info by using
+;; the command describe-mode (C-h m). For online help use
+;; C-h f <Name of function you want described>, or
+;; C-h v <Name of variable you want described>.
+
+;; To customize 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
+;; ;; These are the default values.
;; '(lambda () (setq f90-do-indent 3
;; f90-if-indent 3
;; f90-type-indent 3
;; f90-program-indent 2
;; f90-continuation-indent 5
;; f90-comment-region "!!$"
-;; f90-directive-comment nil
-;; f90-indented-comment "!"
-;; f90-break-delimiters "[-+\\*/,><=% \t]"
+;; f90-directive-comment-re "!hpf\\$"
+;; 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-auto-hilit19 t
-;; f90-leave-line-no nil
-;; f90-startup-message t
+;; f90-leave-line-no nil
;; indent-tabs-mode nil
+;; f90-font-lock-keywords f90-font-lock-keywords-2
;; )
-;; ;;The rest is not default.
+;; ;; These are not default.
;; (abbrev-mode 1) ; turn on abbreviation mode
-;; (f90-auto-fill-mode 1) ; turn on auto-filling
+;; (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 f90-auto-fill-mode and M-x abbrev-mode, respectively.
+;;
+;; in your .emacs file. You can also customize the lists
+;; f90-font-lock-keywords, etc.
+;;
+;; The auto-fill and abbreviation minor modes are accessible from the F90 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
+;; 2) Multi-; statements like "do i=1,20 ; j=j+i ; end do" are not handled
;; correctly, but I imagine them to be rare.
-;; 3) You can use either hilit19 or font-lock-mode for your highlighting
-;; a) To use hilit19, be sure that hilit19 is loaded before this file
-;; b) To use font-lock-mode, nothing special is needed.
-;; 4) For FIXED FORMAT code, use the ordinary fortran mode.
+;; 3) Regexps for hilit19 are no longer supported.
+;; 4) For FIXED FORMAT code, use 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-indent-region (can be called by calling indent-region)
;; f90-indent-subprogram
;; f90-break-line f90-join-lines
-;; f90-auto-fill-mode
;; f90-fill-region
;; f90-insert-end
;; f90-upcase-keywords f90-upcase-region-keywords
;; f90-downcase-keywords f90-downcase-region-keywords
;; f90-capitalize-keywords f90-capitalize-region-keywords
+;; f90-add-imenu-menu
+;; f90-font-lock-1, f90-font-lock-2, f90-font-lock-3, f90-font-lock-4
+;; Original author's thanks
;; 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.
;; of this code is built.
;;; Code:
-(defconst bug-f90-mode "tfkte@fy.chalmers.se"
- "Address of mailing list for F90 mode bugs.")
-
-;; User options
-(defvar f90-do-indent 3
- "*Extra indentation applied to DO blocks.")
-(defvar f90-if-indent 3
- "*Extra indentation applied to IF, SELECT CASE, WHERE and FORALL blocks.")
+;; TODO
+;; Support for align.
+;; OpenMP, preprocessor highlighting.
-(defvar f90-type-indent 3
- "*Extra indentation applied to TYPE, INTERFACE and BLOCK DATA blocks.")
+(defvar comment-auto-fill-only-comments)
+(defvar font-lock-keywords)
-(defvar f90-program-indent 2
- "*Extra indentation applied to PROGRAM/MODULE/SUBROUTINE/FUNCTION blocks.")
+;; User options
-(defvar f90-continuation-indent 5
- "*Extra indentation applied to F90 continuation lines.")
+(defgroup f90 nil
+ "Major mode for editing free format Fortran 90,95 code."
+ :group 'languages)
+
+(defgroup f90-indent nil
+ "Indentation in free format Fortran."
+ :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 continuation lines."
+ :type 'integer
+ :group 'f90-indent)
+
+(defcustom f90-comment-region "!!$"
+ "*String inserted by \\[f90-comment-region] at start of each line in region."
+ :type 'string
+ :group 'f90-indent)
+
+(defcustom f90-indented-comment-re "!"
+ "*Regexp matching comments to indent as code."
+ :type 'regexp
+ :group 'f90-indent)
+
+(defcustom f90-directive-comment-re "!hpf\\$"
+ "*Regexp of comment-like directive like \"!HPF\\\\$\", not to be indented."
+ :type 'regexp
+ :group 'f90-indent)
+
+(defcustom f90-beginning-ampersand t
+ "*Non-nil gives automatic insertion of \& at start 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 matching delimiter characters at which lines may be broken.
+There are certain tokens comprised entirely of characters
+matching this regexp that should not be split, and these are
+specified by the constant `f90-no-break-re'."
+ :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 non-nil, line numbers are not left justified."
+ :type 'boolean
+ :group 'f90)
+
+(defcustom f90-mode-hook nil
+ "Hook run when entering F90 mode."
+ :type 'hook
+ :options '(f90-add-imenu-menu)
+ :group 'f90)
+
+;; User options end here.
+
+(defconst f90-keywords-re
+ (regexp-opt '("allocatable" "allocate" "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"
+ ;; F95 keywords.
+ "elemental" "pure") 'words)
+ "Regexp for F90 keywords.")
+
+(defconst f90-keywords-level-3-re
+ (regexp-opt
+ '("allocatable" "allocate" "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"
+ ;; F95 keywords.
+ "elemental" "pure") 'words)
+ "Keyword-regexp for font-lock level >= 3.")
+
+(defconst f90-procedures-re
+ (concat "\\<"
+ (regexp-opt
+ '("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" "log10" "logical" "matmul" "max"
+ "maxexponent" "maxloc" "maxval" "merge" "min" "minexponent"
+ "minloc" "minval" "mod" "modulo" "mvbits" "nearest" "nint"
+ "not" "pack" "precision" "present" "product" "radix"
+ ;; Real is taken out here to avoid highlighting declarations.
+ "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"
+ ;; F95 intrinsic functions.
+ "null" "cpu_time") t)
+ ;; A left parenthesis to avoid highlighting non-procedures.
+ "[ \t]*(")
+ "Regexp whose first part matches F90 intrinsic procedures.")
+
+(defconst f90-operators-re
+ (concat "\\."
+ (regexp-opt '("and" "eq" "eqv" "false" "ge" "gt" "le" "lt" "ne"
+ "neqv" "not" "or" "true") t)
+ "\\.")
+ "Regexp matching intrinsic operators.")
+
+(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"
+ "grade_down" "grade_up"
+ "hpf_alignment" "hpf_distribution" "hpf_template" "iall" "iall_prefix"
+ "iall_scatter" "iall_suffix" "iany" "iany_prefix" "iany_scatter"
+ "iany_suffix" "ilen" "iparity" "iparity_prefix"
+ "iparity_scatter" "iparity_suffix" "leadz" "maxval_prefix"
+ "maxval_scatter" "maxval_suffix" "minval_prefix" "minval_scatter"
+ "minval_suffix" "number_of_processors" "parity"
+ "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 definition of derived type.
+ '("\\<\\(\\(?:end[ \t]*\\)?type\\)\\>\\([^()\n]*::\\)?[ \t]*\\(\\sw+\\)"
+ (1 font-lock-keyword-face) (3 font-lock-function-name-face))
+ ;; Other functions and declarations.
+ '("\\<\\(\\(?:end[ \t]*\\)?\\(program\\|module\\|function\\|\
+subroutine\\)\\|use\\|call\\)\\>[ \t]*\\(\\sw+\\)?"
+ (1 font-lock-keyword-face) (3 font-lock-function-name-face nil t))
+ "\\<\\(\\(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 t) (4 font-lock-variable-name-face t))
+ ;; 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\\)[ \t]*"
+ (1 font-lock-keyword-face) (2 font-lock-type-face))
+ '("\\<\\(namelist\\|common\\)[ \t]*\/\\(\\sw+\\)?\/"
+ (1 font-lock-keyword-face) (2 font-lock-constant-face nil t))
+ "\\<else\\([ \t]*if\\|where\\)?\\>"
+ '("\\(&\\)[ \t]*\\(!\\|$\\)" (1 font-lock-keyword-face))
+ "\\<\\(then\\|continue\\|format\\|include\\|stop\\|return\\)\\>"
+ '("\\<\\(exit\\|cycle\\)[ \t]*\\(\\sw+\\)?\\>"
+ (1 font-lock-keyword-face) (2 font-lock-constant-face nil t))
+ '("\\<\\(case\\)[ \t]*\\(default\\|(\\)" . 1)
+ '("\\<\\(do\\|go *to\\)\\>[ \t]*\\([0-9]+\\)"
+ (1 font-lock-keyword-face) (2 font-lock-constant-face))
+ ;; Line numbers (lines whose first character after number is letter).
+ '("^[ \t]*\\([0-9]+\\)[ \t]*[a-z]+" (1 font-lock-constant-face t))))
+ "Highlights declarations, do-loops and other constructs.")
+
+(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 keep))
+ "\\<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.
+Can be overridden by the value of `font-lock-maximum-decoration'.")
+
+
+(defvar f90-mode-syntax-table
+ (let ((table (make-syntax-table)))
+ (modify-syntax-entry ?\! "<" table) ; begin comment
+ (modify-syntax-entry ?\n ">" table) ; end comment
+ (modify-syntax-entry ?_ "w" table) ; underscore in names
+ (modify-syntax-entry ?\' "\"" table) ; string quote
+ (modify-syntax-entry ?\" "\"" table) ; string quote
+ (modify-syntax-entry ?\` "w" table) ; for abbrevs
+ (modify-syntax-entry ?\r " " table) ; return is whitespace
+ (modify-syntax-entry ?+ "." table) ; punctuation
+ (modify-syntax-entry ?- "." table)
+ (modify-syntax-entry ?= "." table)
+ (modify-syntax-entry ?* "." table)
+ (modify-syntax-entry ?/ "." table)
+ (modify-syntax-entry ?\\ "\\" table) ; escape chars
+ table)
+ "Syntax table used in F90 mode.")
+
+(defvar f90-mode-map
+ (let ((map (make-sparse-keymap)))
+ (define-key map "`" 'f90-abbrev-start)
+ (define-key map "\C-c;" 'f90-comment-region)
+ (define-key map "\C-\M-a" 'f90-beginning-of-subprogram)
+ (define-key map "\C-\M-e" 'f90-end-of-subprogram)
+ (define-key map "\C-\M-h" 'f90-mark-subprogram)
+ (define-key map "\C-\M-n" 'f90-end-of-block)
+ (define-key map "\C-\M-p" 'f90-beginning-of-block)
+ (define-key map "\C-\M-q" 'f90-indent-subprogram)
+ (define-key map "\C-j" 'f90-indent-new-line) ; LFD equals C-j
+ (define-key map "\r" 'newline)
+ (define-key map "\C-c\r" 'f90-break-line)
+;;; (define-key map [M-return] 'f90-break-line)
+ (define-key map "\C-c\C-a" 'f90-previous-block)
+ (define-key map "\C-c\C-e" 'f90-next-block)
+ (define-key map "\C-c\C-d" 'f90-join-lines)
+ (define-key map "\C-c\C-f" 'f90-fill-region)
+ (define-key map "\C-c\C-p" 'f90-previous-statement)
+ (define-key map "\C-c\C-n" 'f90-next-statement)
+ (define-key map "\C-c\C-w" 'f90-insert-end)
+ (define-key map "\t" 'f90-indent-line)
+ (define-key map "," 'f90-electric-insert)
+ (define-key map "+" 'f90-electric-insert)
+ (define-key map "-" 'f90-electric-insert)
+ (define-key map "*" 'f90-electric-insert)
+ (define-key map "/" 'f90-electric-insert)
+
+ (easy-menu-define f90-menu map "Menu for F90 mode."
+ `("F90"
+ ("Customization"
+ ,(custom-menu-create 'f90)
+ ["Set" Custom-set t]
+ ["Save" Custom-save t]
+ ["Reset to Current" Custom-reset-current t]
+ ["Reset to Saved" Custom-reset-saved t]
+ ["Reset to Standard Settings" Custom-reset-standard t]
+ )
+ "--"
+ ["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 mark-active]
+ ["Indent Region" f90-indent-region mark-active]
+ ["Fill Region" f90-fill-region mark-active]
+ "--"
+ ["Break Line at Point" f90-break-line t]
+ ["Join with Previous Line" f90-join-lines t]
+ ["Insert Block End" f90-insert-end t]
+ "--"
+ ("Highlighting"
+ ["Toggle font-lock-mode" font-lock-mode :selected font-lock-mode
+ :style toggle]
+ "--"
+ ["Light highlighting (level 1)" f90-font-lock-1 t]
+ ["Moderate highlighting (level 2)" f90-font-lock-2 t]
+ ["Heavy highlighting (level 3)" f90-font-lock-3 t]
+ ["Maximum highlighting (level 4)" f90-font-lock-4 t]
+ )
+ ("Change Keyword Case"
+ ["Upcase Keywords (buffer)" f90-upcase-keywords t]
+ ["Capitalize Keywords (buffer)" f90-capitalize-keywords t]
+ ["Downcase Keywords (buffer)" f90-downcase-keywords t]
+ "--"
+ ["Upcase Keywords (region)" f90-upcase-region-keywords
+ mark-active]
+ ["Capitalize Keywords (region)" f90-capitalize-region-keywords
+ mark-active]
+ ["Downcase Keywords (region)" f90-downcase-region-keywords
+ mark-active]
+ )
+ "--"
+ ["Toggle auto-fill" auto-fill-mode :selected auto-fill-function
+ :style toggle]
+ ["Toggle abbrev-mode" abbrev-mode :selected abbrev-mode
+ :style toggle]
+ ["Add imenu Menu" f90-add-imenu-menu
+ :active (not (lookup-key (current-local-map) [menu-bar index]))
+ :included (fboundp 'imenu-add-to-menubar)]))
+ map)
+ "Keymap used in F90 mode.")
-(defvar f90-comment-region "!!$"
- "*String inserted by \\[f90-comment-region]\
- at start of each line in region.")
-(defvar f90-indented-comment "!"
- "*Comments to be indented like code.")
+(defun f90-font-lock-1 ()
+ "Set `font-lock-keywords' to `f90-font-lock-keywords-1'."
+ (interactive)
+ (font-lock-mode 1)
+ (setq font-lock-keywords f90-font-lock-keywords-1)
+ (font-lock-fontify-buffer))
-(defvar f90-directive-comment nil
- "*String of comment-like directive like \"!HPF$\", not to be indented.")
+(defun f90-font-lock-2 ()
+ "Set `font-lock-keywords' to `f90-font-lock-keywords-2'."
+ (interactive)
+ (font-lock-mode 1)
+ (setq font-lock-keywords f90-font-lock-keywords-2)
+ (font-lock-fontify-buffer))
-(defvar f90-beginning-ampersand t
- "*t makes automatic insertion of \& at beginning of continuation line.")
+(defun f90-font-lock-3 ()
+ "Set `font-lock-keywords' to `f90-font-lock-keywords-3'."
+ (interactive)
+ (font-lock-mode 1)
+ (setq font-lock-keywords f90-font-lock-keywords-3)
+ (font-lock-fontify-buffer))
-(defvar f90-smart-end 'blink
- "*From an END statement, check and fill the end using matching block start.
-Allowed values are 'blink, 'no-blink, and nil, which determine
-whether to blink the matching beginning.")
+(defun f90-font-lock-4 ()
+ "Set `font-lock-keywords' to `f90-font-lock-keywords-4'."
+ (interactive)
+ (font-lock-mode 1)
+ (setq font-lock-keywords f90-font-lock-keywords-4)
+ (font-lock-fontify-buffer))
-(defvar f90-break-delimiters "[-+\\*/><=,% \t]"
- "*Regexp holding list of delimiters at which lines may be broken.")
+\f
+;; 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]*\\(\\sw+\\)"
+ "Regexp matching the definition of a derived type.")
+
+(defconst f90-no-break-re
+ (regexp-opt '("**" "//" "=>" ">=" "<=" "==" "/=") 'paren)
+ "Regexp specifying where not to break lines when filling.
+This regexp matches certain tokens comprised entirely of
+characters matching the regexp `f90-break-delimiters' that should
+not be split by filling. Each element is assumed to be two
+characters long.")
+
+(defvar f90-cache-position nil
+ "Temporary position used to speed up region operations.")
+(make-variable-buffer-local 'f90-cache-position)
-(defvar f90-break-before-delimiters t
- "*Non-nil causes `f90-do-auto-fill' to break lines before delimiters.")
+\f
+;; Hideshow support.
+(defconst f90-end-block-re
+ (concat "^[ \t0-9]*\\<end\\>[ \t]*"
+ (regexp-opt '("do" "if" "forall" "function" "interface"
+ "module" "program" "select" "subroutine"
+ "type" "where" ) t)
+ "[ \t]*\\sw*")
+ "Regexp matching the end of a \"block\" of F90 code.
+Used in the F90 entry in `hs-special-modes-alist'.")
+
+;; Ignore the fact that FUNCTION, SUBROUTINE, WHERE, FORALL have a
+;; following "(". DO, CASE, IF can have labels; IF must be
+;; accompanied by THEN.
+;; A big problem is that many of these statements can be broken over
+;; lines, even with embedded comments. We only try to handle this for
+;; IF ... THEN statements, assuming and hoping it will be less common
+;; for other constructs. We match up to one new-line, provided ")
+;; THEN" appears on one line. Matching on just ") THEN" is no good,
+;; since that includes ELSE branches.
+;; For a fully accurate solution, hideshow would probably have to be
+;; modified to allow functions as well as regexps to be used to
+;; specify block start and end positions.
+(defconst f90-start-block-re
+ (concat
+ "^[ \t0-9]*" ; statement number
+ "\\(\\("
+ "\\(\\sw+[ \t]*:[ \t]*\\)?" ; structure label
+ "\\(do\\|select[ \t]*case\\|if[ \t]*(.*\n?.*)[ \t]*then\\|"
+ ;; Distinguish WHERE block from isolated WHERE.
+ "\\(where\\|forall\\)[ \t]*(.*)[ \t]*\\(!\\|$\\)\\)\\)"
+ "\\|"
+ "program\\|interface\\|module\\|type\\|function\\|subroutine"
+ ;; ") THEN" at line end. Problem - also does ELSE.
+;;; "\\|.*)[ \t]*then[ \t]*\\($\\|!\\)"
+ "\\)"
+ "[ \t]*")
+ "Regexp matching the start of a \"block\" of F90 code.
+A simple regexp cannot do this in fully correct fashion, so this
+tries to strike a compromise between complexity and flexibility.
+Used in the F90 entry in `hs-special-modes-alist'.")
+
+;; hs-special-modes-alist is autoloaded.
+(add-to-list 'hs-special-modes-alist
+ `(f90-mode ,f90-start-block-re ,f90-end-block-re
+ "!" f90-end-of-block nil))
-(defvar f90-auto-keyword-case nil
- "*Automatic case conversion of keywords.
- The options are 'downcase-word, 'upcase-word, 'capitalize-word and nil")
-
-(defvar f90-auto-hilit19 t
- "*Automatic highlight of line at every indent or newline (for hilit19).")
-
-(defvar f90-leave-line-no nil
- "*If nil, left-justify linenumbers.")
-
-(defvar f90-startup-message t
- "*Non-nil displays a startup message when F90 mode is first called.")
-
-(defvar f90-keywords
- '("allocate" "allocatable" "assign" "assignment" "backspace" "block"
- "call" "case" "character" "close" "common" "complex" "contains"
- "continue" "cycle" "data" "deallocate" "dimension" "do" "double" "else"
- "elseif" "elsewhere" "end" "enddo" "endfile" "endif" "entry" "equivalence"
- "exit" "external" "forall" "format" "function" "goto" "if" "implicit"
- "include" "inquire" "integer" "intent" "interface" "intrinsic" "logical"
- "module" "namelist" "none" "nullify" "only" "open" "optional" "parameter"
- "pause" "pointer" "precision" "print" "private" "procedure" "program"
- "public" "read" "real" "recursive" "return" "rewind" "save" "select"
- "sequence" "stop" "subroutine" "target" "then" "type" "use" "where"
- "while" "write")
- "*List of f90-keywords.")
-
-(defvar f90-intrinsic-procedures
- '("abs" "achar" "acos" "adjustl" "adjustr" "aimag" "aint" "all" "allocated"
- "anint" "any" "asin" "associated" "atan" "atan2" "bit_size" "btest"
- "ceiling" "char" "cmplx" "conjg" "cos" "cosh" "count" "cshift"
- "date_and_time" "dble" "digits" "dim" "dot_product" "dprod" "eoshift"
- "epsilon" "exp" "exponent" "floor" "fraction" "huge" "iachar" "iand"
- "ibclr" "ibits" "ibset" "ichar" "ieor" "index" "int" "ior" "ishft"
- "ishftc" "kind" "lbound" "len" "len_trim" "lge" "lgt" "lle" "llt" "log"
- "logical" "log10" "matmul" "max" "maxexponent" "maxloc" "maxval" "merge"
- "min" "minexponent" "minloc" "minval" "mod" "modulo" "mvbits" "nearest"
- "nint" "not" "pack" "precision" "present" "product" "radix" "random_number"
- "random_seed" "range" "real" "repeat" "reshape" "rrspacing" "scale"
- "scan" "selected_int_kind" "selected_real_kind" "set_exponent" "shape"
- "sign" "sin" "sinh" "size" "spacing" "spread" "sqrt" "sum"
- "system_clock" "tan" "tanh" "tiny" "transfer" "transpose" "trim"
- "ubound" "unpack" "verify")
- "*List of F90 intrinsic procedures.")
-
-(defvar f90-hpf-procedures
- '("all_prefix" "all_scatter" "all_suffix" "any_prefix" "any_scatter"
- "any_suffix" "copy_prefix" "copy_scatter" "copy_suffix" "count_prefix"
- "count_scatter" "count_suffix" "grade_down" "grade_up" "hpf_alignment"
- "hpf_template" "hpf_distribution" "iall" "iall_prefix" "iall_scatter"
- "iall_suffix" "iany" "iany_prefix" "iany_scatter" "iany_suffix" "iparity"
- "iparity_prefix" "iparity_scatter" "iparity_suffix" "leadz" "maxval_prefix"
- "maxval_scatter" "maxval_suffix" "minval_prefix" "minval_scatter"
- "minval_suffix" "parity" "parity_prefix" "parity_scatter" "parity_suffix"
- "popcnt" "poppar" "product_prefix" "product_scatter" "product_suffix"
- "sum_prefix" "sum_scatter" "sum_suffix" "ilen" "number_of_processors"
- "processors_shape")
- "*List of hpf intrinsic procedures.")
-
-(defvar f90-hpf-directives
- '("align" "distribute" "dynamic" "inherit" "template" "processors"
- "realign" "redistribute" "independent")
- "*List of hpf directives.")
-
-(defvar f90-hpf-keywords
- '("pure" "extrinsic" "new" "with" "onto" "block" "cyclic")
- "*List of hpf keywords.")
-
-;; Highlighting patterns
-
-(defconst f90-font-lock-keywords-1
- (purecopy
- (list
- ;; Subroutine and function declarations
- '("^[ \t]*\\(program\\|module\\)[ \t]+\\sw+" 1 font-lock-keyword-face)
- '("^[ \t]*\\(program\\|module\\)[ \t]+\\(\\sw+\\)" 2
- font-lock-function-name-face)
- '("\\(^.*\\(function\\|subroutine\\)\\)[ \t]+\\sw+" 1
- font-lock-keyword-face)
- '("^.*\\(function\\|subroutine\\)[ \t]+\\(\\sw+\\)" 2
- font-lock-function-name-face)
- '("^[ \t]*end[ \t]*\\(program\\|module\\|function\\|subroutine\\|type\\)"
- . font-lock-keyword-face)
- (list (concat "^[ \t]*end[ \t]*\\(program\\|module\\|function\\|"
- "subroutine\\|type\\)[ \t]+\\(\\sw+\\)") 2
- 'font-lock-function-name-face)
- '("^[ \t]*\\(type\\)[ \t]+\\sw+" 1 font-lock-keyword-face)
- '("^[ \t]*type[ \t]+\\(\\sw+\\)" 1 font-lock-function-name-face)
- '("^[ \t]*\\(type[ \t]*,[ \t]*\\(private\\|public\\)\\)[ \t]*::\
-[ \t]*\\(\\sw+\\)" 1 font-lock-keyword-face)
- '("^[ \t]*\\(type[ \t]*,[ \t]*\\(private\\|public\\)\\)[ \t]*::\
-[ \t]*\\(\\sw+\\)" 3 font-lock-function-name-face)
- '("^[ \t]*\\(end[ \t]*\\)?interface\\>" . font-lock-keyword-face)
- '("^[ \t]*contains\\>" . font-lock-keyword-face)))
- "For consideration as a value of `f90-font-lock-keywords-1'.
-This does fairly subdued highlighting of comments and function names.")
-
-(defconst f90-font-lock-keywords-2
- (purecopy
- (append f90-font-lock-keywords-1
+\f
+;; 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
- ;; Variable declarations
- '("\\(\\(real\\|integer\\|character\\|complex\\|logical\\|\
-type[ \t]*(\\sw+)\\).*\\)::" 1 font-lock-type-face)
- '("implicit[ \t]*none" . font-lock-keyword-face)
- '("^[ \t]*\\(\\sw+[ \t]*:[ \t]*\\)?\\(do\\([ \t]*while\\)?\\)\\>"
- 2 font-lock-keyword-face)
- '("^[ \t]*\\(\\sw+\\)[ \t]*:[ \t]*\\(do\\([ \t]*while\\)?\\)\\>" 1
- font-lock-function-name-face)
- '("^[ \t]*\\(end[ \t]*do\\)\\>" 1 font-lock-keyword-face)
- '("^[ \t]*end[ \t]*do[ \t]+\\(\\sw+\\)" 1 font-lock-function-name-face)
- '("^[ \t]*\\(\\sw+[ \t]*:[ \t]*\\)?\\(if\\)\\>" 2
- font-lock-keyword-face)
- '("^[ \t]*\\(\\sw+\\)[ \t]*:[ \t]*if\\>" 1 font-lock-function-name-face)
- '("^[ \t]*\\(end[ \t]*if\\)\\>" 1 font-lock-keyword-face)
- '("^[ \t]*end[ \t]*if[ \t]+\\(\\sw+\\)" 1 font-lock-function-name-face)
- '("^[ \t]*\\(\\sw+[ \t]*:[ \t]*\\)?\\(select[ \t]*case\\)\\>" 2
- font-lock-keyword-face)
- '("^[ \t]*\\(\\sw+\\)[ \t]*:[ \t]*\\(select[ \t]*case\\)\\>" 1
- font-lock-function-name-face)
- '("^[ \t]*end[ \t]*select\\>" . font-lock-keyword-face)
- '("^[ \t]*end[ \t]*select\\>[ \t]+\\(\\sw+\\)" 1
- font-lock-function-name-face)
- '("\\(where\\|forall\\)[ \t]*(" 1 font-lock-keyword-face)
- '("\\<\\(elsewhere\\|else\\|else[ \t]*if\\)\\>" . font-lock-keyword-face)
- '("\\<end[ \t]*\\(where\\|forall\\)\\>" . font-lock-keyword-face)
- '("\\<then\\>" . font-lock-keyword-face)
- '("\\<\\(exit\\|cycle\\)\\>" . font-lock-keyword-face)
- '("\\<\\(exit\\|cycle\\)[ \t]*\\(\\sw+\\)\\>" 2
- font-lock-function-name-face)
- '("\\<\\(stop\\|return\\)\\>" . font-lock-keyword-face)
- '("^[ \t]*\\(case\\)[ \t]*\\((\\|default\\)" 1 font-lock-keyword-face)
- (concat "\\<\\("(mapconcat 'identity f90-keywords "\\|") "\\)\\>")
- (concat "\\<\\("(mapconcat 'identity f90-intrinsic-procedures "\\|")
- "\\)\\>")
- (concat "\\<\\("(mapconcat 'identity f90-hpf-procedures "\\|")
- "\\)\\>")
- (concat "\\<\\("(mapconcat 'identity f90-hpf-directives "\\|")
- "\\)\\>")
- (concat "\\<\\("(mapconcat 'identity f90-hpf-keywords "\\|")
- "\\)\\>"))))
- "For consideration as a value of `f90-font-lock-keywords'.
-This highlights variable types, \"keywords,\" etc.")
-
-(defvar f90-font-lock-keywords (if font-lock-maximum-decoration
- f90-font-lock-keywords-2
- f90-font-lock-keywords-1)
- "*Additional expressions to highlight in F90 mode.")
-
-;; hilit19 customization and expressions
-(defvar f90-face-string 'named-param "*Face for strings.")
-(defvar f90-face-comment 'comment "*Face for comments.")
-(defvar f90-face-decl 'include "*Face for declarations.")
-(defvar f90-face-prog 'defun "*Face for program blocks.")
-(defvar f90-face-label 'Tomato-bold "*Face for labels.")
-(defvar f90-face-type 'defun "*Face for type blocks.")
-(defvar f90-face-interface 'defun "*Face for interface blocks.")
-(defvar f90-face-contains 'defun "*Face for contains statement.")
-(defvar f90-face-do 'SteelBlue-bold "*Face for do-structure.")
-(defvar f90-face-if 'define "*Face for if-structure.")
-(defvar f90-face-select 'define "*Face for select-case structure.")
-(defvar f90-face-stop 'defun "*Face for stop and return.")
-(defvar f90-face-exit 'SteelBlue-bold "*Face for exit and cycle.")
-(defvar f90-face-keyword 'struct "*Face for keywords.")
-(defvar f90-face-intrinsics 'struct "*Face for intrinsic procedures.")
-;; Highlighting for HPF (High-Peformance Fortran)
-(defvar f90-face-hpf-procedures 'struct "*Face for hpf procedures.")
-(defvar f90-face-hpf-directives 'struct "*Face for hpf directives.")
-(defvar f90-face-hpf-keywords 'struct "*Face for hpf keywords.")
-
-(if (fboundp 'hilit-set-mode-patterns)
- (hilit-set-mode-patterns
- 'f90-mode
+ '(nil "^[ \t0-9]*program[ \t]+\\(\\sw+\\)" 1)
+ '("Modules" "^[ \t0-9]*module[ \t]+\\(\\sw+\\)[ \t]*\\(!\\|$\\)" 1)
+ '("Types" "^[ \t0-9]*type[ \t]+\\(\\sw+\\)" 1)
(list
- ;; Allow for strings delimited by ' and by " and for multirow strings.
- ;; A multi-row string includes &\n& (+ possible whitespace and comments)
- (list (concat
- "\\(\"[^\"\n]*\\(&[ \t]*\\(![^\n]*\\)?\n[ \t]*&[^\"\n]*\\)*\""
- "\\|'[^'\n]*\\(&[ \t]*\\(![^\n]*\\)?\n[ \t]*&[^'\n]*\\)*'\\)")
- nil f90-face-string)
- (list "!" "$" f90-face-comment)
- (list "\\(\\(real\\|integer\\|character\\|complex\\|logical\
-\\|type[ \t]*(\\sw+)\\).*\\)::" 1 f90-face-decl)
- (list "implicit[ \t]*none" nil f90-face-decl)
- (list "^[ \t]*\\(program\\|module\\)[ \t]+\\sw+" 1 f90-face-prog)
- (list "^[ \t]*\\(program\\|module\\)[ \t]+\\(\\sw+\\)" 2 f90-face-label)
- (list "\\(^.*\\(function\\|subroutine\\)\\)[ \t]+\\sw+" 1
- f90-face-prog)
- (list "^.*\\(function\\|subroutine\\)[ \t]+\\(\\sw+\\)" 2
- f90-face-label)
- (list "^[ \t]*end[ \t]*\\(program\\|module\\|function\
-\\|subroutine\\|type\\)" nil f90-face-prog)
- (list (concat "^[ \t]*end[ \t]*\\(program\\|module\\|function\\|"
- "subroutine\\|type\\)[ \t]+\\(\\sw+\\)") 2 f90-face-label)
- (list "^[ \t]*\\(type\\)[ \t]+\\sw+" 1 f90-face-type)
- (list "^[ \t]*type[ \t]+\\(\\sw+\\)" 1 f90-face-label)
- (list "^[ \t]*\\(type[ \t]*,[ \t]*\\(private\\|public\\)\\)[ \t]*::[ \t]*\\(\\sw+\\)" 1 f90-face-type)
- (list "^[ \t]*\\(type[ \t]*,[ \t]*\\(private\\|public\\)\\)[ \t]*::[ \t]*\\(\\sw+\\)" 3 f90-face-label)
- (list "^[ \t]*\\(end[ \t]*\\)?interface\\>" nil f90-face-interface)
- (list "^[ \t]*contains\\>" nil f90-face-contains)
- (list "^[ \t]*\\(\\sw+[ \t]*:[ \t]*\\)?\\(do\\([ \t]*while\\)?\\)\\>"
- 2 f90-face-do)
- (list "^[ \t]*\\(\\sw+\\)[ \t]*:[ \t]*\\(do\\([ \t]*while\\)?\\)\\>" 1
- f90-face-label)
- (list "^[ \t]*\\(end[ \t]*do\\)\\>" 1 f90-face-do)
- (list "^[ \t]*end[ \t]*do[ \t]+\\(\\sw+\\)" 1 f90-face-label)
- (list "^[ \t]*\\(\\sw+[ \t]*:[ \t]*\\)?\\(if\\)\\>" 2 f90-face-if)
- (list "^[ \t]*\\(\\sw+\\)[ \t]*:[ \t]*if\\>" 1 f90-face-label)
- (list "^[ \t]*\\(end[ \t]*if\\)\\>" 1 f90-face-if)
- (list "^[ \t]*end[ \t]*if[ \t]+\\(\\sw+\\)" 1 f90-face-label)
- (list "^[ \t]*\\(\\sw+[ \t]*:[ \t]*\\)?\\(select[ \t]*case\\)\\>" 2
- f90-face-select)
- (list "^[ \t]*\\(\\sw+\\)[ \t]*:[ \t]*\\(select[ \t]*case\\)\\>" 1
- f90-face-label)
- (list "^[ \t]*end[ \t]*select\\>" nil f90-face-select)
- (list "^[ \t]*end[ \t]*select\\>[ \t]+\\(\\sw+\\)" 1 f90-face-label)
- (list "\\(where\\|forall\\)[ \t]*(" 1 f90-face-if)
- (list "\\<\\(elsewhere\\|else\\|else[ \t]*if\\)\\>" nil f90-face-if)
- (list "\\<end[ \t]*\\(where\\|forall\\)\\>" nil f90-face-if)
- (list "\\<then\\>" nil f90-face-if)
- (list "\\<\\(exit\\|cycle\\)\\>" nil f90-face-exit)
- (list "\\<\\(exit\\|cycle\\)[ \t]*\\sw+\\>" nil f90-face-label)
- (list "\\<\\(stop\\|return\\)\\>" nil f90-face-stop)
- (list "^[ \t]*\\(case\\)[ \t]*\\((\\|default\\)" 1 f90-face-select)
- (list (concat "\\<\\("(mapconcat 'identity f90-keywords "\\|")
- "\\)\\>") nil f90-face-keyword)
- (list (concat "\\<\\("(mapconcat 'identity f90-intrinsic-procedures "\\|")
- "\\)\\>") nil f90-face-intrinsics)
- (list (concat "\\<\\("(mapconcat 'identity f90-hpf-procedures "\\|")
- "\\)\\>") nil f90-face-hpf-procedures)
- (list (concat "\\<\\("(mapconcat 'identity f90-hpf-directives "\\|")
- "\\)\\>") nil f90-face-hpf-directives)
- (list (concat "\\<\\("(mapconcat 'identity f90-hpf-keywords "\\|")
- "\\)\\>") nil f90-face-hpf-keywords))
- nil 'case-insensitive))
-
-;; syntax table
-(defvar f90-mode-syntax-table nil
- "Syntax table in use in F90 mode buffers.")
-
-(if f90-mode-syntax-table
- ()
- (setq f90-mode-syntax-table (make-syntax-table))
- (modify-syntax-entry ?\! "<" f90-mode-syntax-table) ; beg. comment
- (modify-syntax-entry ?\n ">" f90-mode-syntax-table) ; end comment
- (modify-syntax-entry ?_ "w" f90-mode-syntax-table) ; underscore in names
- (modify-syntax-entry ?\' "\"" f90-mode-syntax-table) ; string quote
- (modify-syntax-entry ?\" "\"" f90-mode-syntax-table) ; string quote
- (modify-syntax-entry ?\` "w" f90-mode-syntax-table) ; for abbrevs
- (modify-syntax-entry ?\r " " f90-mode-syntax-table) ; return is whitespace
- (modify-syntax-entry ?+ "." f90-mode-syntax-table)
- (modify-syntax-entry ?- "." f90-mode-syntax-table)
- (modify-syntax-entry ?= "." f90-mode-syntax-table)
- (modify-syntax-entry ?* "." f90-mode-syntax-table)
- (modify-syntax-entry ?/ "." f90-mode-syntax-table)
- (modify-syntax-entry ?\\ "/" f90-mode-syntax-table)) ; escape chars
-
-;; keys
-(defvar f90-mode-map ()
- "Keymap used in F90 mode.")
-(if f90-mode-map
- ()
- (setq f90-mode-map (make-sparse-keymap))
- (define-key f90-mode-map "`" 'f90-abbrev-start)
- (define-key f90-mode-map "\C-c;" 'f90-comment-region)
- (define-key f90-mode-map "\C-\M-a" 'f90-beginning-of-subprogram)
- (define-key f90-mode-map "\C-\M-e" 'f90-end-of-subprogram)
- (define-key f90-mode-map "\C-\M-h" 'f90-mark-subprogram)
- (define-key f90-mode-map "\C-\M-q" 'f90-indent-subprogram)
- (define-key f90-mode-map "\C-j" 'f90-indent-new-line) ; LFD equals C-j
- (define-key f90-mode-map "\r" 'newline)
- (define-key f90-mode-map "\C-c\r" 'f90-break-line)
- ;; (define-key f90-mode-map [M-return] 'f90-break-line)
- (define-key f90-mode-map "\C-c\C-d" 'f90-join-lines)
- (define-key f90-mode-map "\C-c\C-f" 'f90-fill-region)
- (define-key f90-mode-map "\C-c\C-p" 'f90-previous-statement)
- (define-key f90-mode-map "\C-c\C-n" 'f90-next-statement)
- (define-key f90-mode-map "\C-c\C-w" 'f90-insert-end)
- (define-key f90-mode-map "\t" 'f90-indent-line))
-;; menus
-(if (string-match "Lucid" emacs-version)
- ;; XEmacs
- (progn
- (add-menu nil "F90"
- '(
- ["Indent subprogram" f90-indent-subprogram t]
- ["Mark subprogram" f90-mark-subprogram t]
- ["Beginning of subprogram" f90-beginning-of-subprogram t]
- ["End of subprogram" f90-end-of-subprogram t]
- "-----"
- ["(Un)Comment region" f90-comment-region t]
- ["Indent region" indent-region t]
- ["Fill region" f90-fill-region t]
- "-----"
- ["Break line at point" f90-break-line t]
- ["Join with next line" f90-join-lines t]
- ["Insert newline." newline t]
- ["Insert end." f90-insert-end t]
- "-----"
- ["UPCASE keywords (buffer)" f90-upcase-keywords t]
- ["UPCASE keywords (region)" f90-upcase-region-keywords
- t]
- ["Capitalize keywords (buffer)" f90-capitalize-keywords t]
- ["Capitalize keywords (region)"
- f90-capitalize-region-keywords t]
- ["downcase keywords (buffer)" f90-downcase-keywords t]
- ["downcase keywords (region)"
- f90-downcase-region-keywords t]
- "-----"
- ["Toggle abbrev-mode" abbrev-mode t]
- ["Toggle auto-fill" f90-auto-fill-mode t])))
- ;; Emacs
- (define-key f90-mode-map [menu-bar] (make-sparse-keymap))
- (define-key f90-mode-map [menu-bar f90]
- (cons "F90" (make-sparse-keymap "f90")))
- (define-key f90-mode-map [menu-bar f90 abbrev-mode]
- '("Toggle abbrev-mode" . abbrev-mode))
- (define-key f90-mode-map [menu-bar f90 f90-auto-fill-mode]
- '("Toggle auto-fill" . f90-auto-fill-mode))
- (define-key f90-mode-map [menu-bar f90 f90-downcase-region-keywords]
- '("downcase keywords (region)" . f90-downcase-region-keywords))
- (define-key f90-mode-map [menu-bar f90 f90-downcase-keywords]
- '("downcase keywords (buffer)" . f90-downcase-keywords))
- (define-key f90-mode-map [menu-bar f90 f90-capitalize-keywords]
- '("Capitalize keywords (region)" . f90-capitalize-region-keywords))
- (define-key f90-mode-map [menu-bar f90 f90-capitalize-region-keywords]
- '("Capitalize keywords (buffer)" . f90-capitalize-keywords))
- (define-key f90-mode-map [menu-bar f90 f90-upcase-region-keywords]
- '("UPCASE keywords (region)" . f90-upcase-region-keywords))
- (define-key f90-mode-map [menu-bar f90 f90-upcase-keywords]
- '("UPCASE keywords (buffer)" . f90-upcase-keywords))
- (define-key f90-mode-map [menu-bar f90 f90-insert-end]
- '("Insert end." . f90-insert-end))
- (define-key f90-mode-map [menu-bar f90 f90-join-lines]
- '("Join with next line." . f90-join-lines))
- (define-key f90-mode-map [menu-bar f90 f90-break-line]
- '("Break line at point" . f90-break-line))
- (define-key f90-mode-map [menu-bar f90 f90-fill-region]
- '("Fill Region" . f90-fill-region))
- (define-key f90-mode-map [menu-bar f90 indent-region]
- '("Indent Region" . indent-region))
- (define-key f90-mode-map [menu-bar f90 f90-comment-region]
- '("(Un)Comment Region" . f90-comment-region))
- (define-key f90-mode-map [menu-bar f90 f90-end-of-subprogram]
- '("End of Subprogram" . f90-end-of-subprogram))
- (define-key f90-mode-map [menu-bar f90 f90-beginning-of-subprogram]
- '("Beginning of Subprogram" . f90-beginning-of-subprogram))
- (define-key f90-mode-map [menu-bar f90 f90-mark-subprogram]
- '("Mark Subprogram" . f90-mark-subprogram))
- (define-key f90-mode-map [menu-bar f90 f90-indent-subprogram]
- '("Indent Subprogram" . f90-indent-subprogram)))
-
-(defconst f90-symbol-re "[a-z_][a-z_0-9]*")
-(defconst f90-blocks-re
- "\\(block[ \t]*data\\|do\\|if\\|interface\\|function\\|module\\|\
-program\\|select\\|subroutine\\|type\\|where\\|forall\\)\\>")
-(defconst f90-program-block-re
- "\\(program\\|module\\|subroutine\\|function\\)")
-(defconst f90-else-like-re
- "\\(else\\|else[ \t]*if\\|elsewhere\\|case[ \t]*(\\|case[ \t]*default\\)")
-(defconst f90-end-if-re
- "end[ \t]*\\(if\\|select\\|where\\|forall\\)\\>")
-(defconst f90-end-type-re
- "end[ \t]*\\(type\\|interface\\|block[ \t]*data\\)\\>")
-(defconst f90-no-break-re "\\(\\*\\*\\|//\\|=>\\)")
-(defconst f90-p-type-re
- (concat "\\(type\\)[ \t]*,[ \t]*\\(public\\|private\\)"
- "[ \t]*::[ \t]*\\(" f90-symbol-re "\\)\\>"))
-;; A temporary position to make region operators faster
-(defvar f90-cache-position nil)
-(make-variable-buffer-local 'f90-cache-position)
+ "Procedures"
+ (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+\\)")
+ 4)))
+ "Value for `imenu-generic-expression' in F90 mode.")
+
+(defun f90-add-imenu-menu ()
+ "Add an imenu menu to the menubar."
+ (interactive)
+ (if (lookup-key (current-local-map) [menu-bar index])
+ (message "%s" "F90-imenu already exists.")
+ (imenu-add-to-menubar "F90-imenu")
+ (redraw-frame (selected-frame))))
+
\f
-;; abbrevs have generally two letters, except standard types `c, `i, `r, `t
-(defvar f90-mode-abbrev-table nil)
-(if f90-mode-abbrev-table
- ()
- (let ((ac abbrevs-changed))
- (define-abbrev-table 'f90-mode-abbrev-table ())
- (define-abbrev f90-mode-abbrev-table "`al" "allocate" nil)
- (define-abbrev f90-mode-abbrev-table "`ab" "allocateable" nil)
- (define-abbrev f90-mode-abbrev-table "`as" "assignment" nil)
- (define-abbrev f90-mode-abbrev-table "`ba" "backspace" nil)
- (define-abbrev f90-mode-abbrev-table "`bd" "block data" nil)
- (define-abbrev f90-mode-abbrev-table "`c" "character" nil)
- (define-abbrev f90-mode-abbrev-table "`cl" "close" nil)
- (define-abbrev f90-mode-abbrev-table "`cm" "common" nil)
- (define-abbrev f90-mode-abbrev-table "`cx" "complex" nil)
- (define-abbrev f90-mode-abbrev-table "`cn" "contains" nil)
- (define-abbrev f90-mode-abbrev-table "`cy" "cycle" nil)
- (define-abbrev f90-mode-abbrev-table "`de" "deallocate" nil)
- (define-abbrev f90-mode-abbrev-table "`df" "define" nil)
- (define-abbrev f90-mode-abbrev-table "`di" "dimension" nil)
- (define-abbrev f90-mode-abbrev-table "`dw" "do while" nil)
- (define-abbrev f90-mode-abbrev-table "`el" "else" nil)
- (define-abbrev f90-mode-abbrev-table "`eli" "else if" nil)
- (define-abbrev f90-mode-abbrev-table "`elw" "elsewhere" nil)
- (define-abbrev f90-mode-abbrev-table "`eq" "equivalence" nil)
- (define-abbrev f90-mode-abbrev-table "`ex" "external" nil)
- (define-abbrev f90-mode-abbrev-table "`ey" "entry" nil)
- (define-abbrev f90-mode-abbrev-table "`fl" "forall" nil)
- (define-abbrev f90-mode-abbrev-table "`fo" "format" nil)
- (define-abbrev f90-mode-abbrev-table "`fu" "function" nil)
- (define-abbrev f90-mode-abbrev-table "`fa" ".false." nil)
- (define-abbrev f90-mode-abbrev-table "`im" "implicit none" nil)
- (define-abbrev f90-mode-abbrev-table "`in " "include" nil)
- (define-abbrev f90-mode-abbrev-table "`i" "integer" nil)
- (define-abbrev f90-mode-abbrev-table "`it" "intent" nil)
- (define-abbrev f90-mode-abbrev-table "`if" "interface" nil)
- (define-abbrev f90-mode-abbrev-table "`lo" "logical" nil)
- (define-abbrev f90-mode-abbrev-table "`mo" "module" nil)
- (define-abbrev f90-mode-abbrev-table "`na" "namelist" nil)
- (define-abbrev f90-mode-abbrev-table "`nu" "nullify" nil)
- (define-abbrev f90-mode-abbrev-table "`op" "optional" nil)
- (define-abbrev f90-mode-abbrev-table "`pa" "parameter" nil)
- (define-abbrev f90-mode-abbrev-table "`po" "pointer" nil)
- (define-abbrev f90-mode-abbrev-table "`pr" "print" nil)
- (define-abbrev f90-mode-abbrev-table "`pi" "private" nil)
- (define-abbrev f90-mode-abbrev-table "`pm" "program" nil)
- (define-abbrev f90-mode-abbrev-table "`pu" "public" nil)
- (define-abbrev f90-mode-abbrev-table "`r" "real" nil)
- (define-abbrev f90-mode-abbrev-table "`rc" "recursive" nil)
- (define-abbrev f90-mode-abbrev-table "`rt" "return" nil)
- (define-abbrev f90-mode-abbrev-table "`rw" "rewind" nil)
- (define-abbrev f90-mode-abbrev-table "`se" "select" nil)
- (define-abbrev f90-mode-abbrev-table "`sq" "sequence" nil)
- (define-abbrev f90-mode-abbrev-table "`su" "subroutine" nil)
- (define-abbrev f90-mode-abbrev-table "`ta" "target" nil)
- (define-abbrev f90-mode-abbrev-table "`tr" ".true." nil)
- (define-abbrev f90-mode-abbrev-table "`t" "type" nil)
- (define-abbrev f90-mode-abbrev-table "`wh" "where" nil)
- (define-abbrev f90-mode-abbrev-table "`wr" "write" nil)
- (setq abbrevs-changed ac)))
+;; Abbrevs have generally two letters, except standard types `c, `i, `r, `t.
+(defvar f90-mode-abbrev-table
+ (let (abbrevs-changed)
+ (define-abbrev-table 'f90-mode-abbrev-table nil)
+ ;; Use the 6th arg (SYSTEM-FLAG) of define-abbrev if possible.
+ ;; A little baroque to quieten the byte-compiler.
+ (mapcar
+ (function (lambda (element)
+ (condition-case nil
+ (apply 'define-abbrev f90-mode-abbrev-table
+ (append element '(nil 0 t)))
+ (wrong-number-of-arguments
+ (apply 'define-abbrev f90-mode-abbrev-table
+ (append element '(nil 0)))))))
+ '(("`al" "allocate" )
+ ("`ab" "allocatable" )
+ ("`as" "assignment" )
+ ("`ba" "backspace" )
+ ("`bd" "block data" )
+ ("`c" "character" )
+ ("`cl" "close" )
+ ("`cm" "common" )
+ ("`cx" "complex" )
+ ("`cn" "contains" )
+ ("`cy" "cycle" )
+ ("`de" "deallocate" )
+ ("`df" "define" )
+ ("`di" "dimension" )
+ ("`dw" "do while" )
+ ("`el" "else" )
+ ("`eli" "else if" )
+ ("`elw" "elsewhere" )
+ ("`eq" "equivalence" )
+ ("`ex" "external" )
+ ("`ey" "entry" )
+ ("`fl" "forall" )
+ ("`fo" "format" )
+ ("`fu" "function" )
+ ("`fa" ".false." )
+ ("`im" "implicit none")
+ ("`in" "include" )
+ ("`i" "integer" )
+ ("`it" "intent" )
+ ("`if" "interface" )
+ ("`lo" "logical" )
+ ("`mo" "module" )
+ ("`na" "namelist" )
+ ("`nu" "nullify" )
+ ("`op" "optional" )
+ ("`pa" "parameter" )
+ ("`po" "pointer" )
+ ("`pr" "print" )
+ ("`pi" "private" )
+ ("`pm" "program" )
+ ("`pu" "public" )
+ ("`r" "real" )
+ ("`rc" "recursive" )
+ ("`rt" "return" )
+ ("`rw" "rewind" )
+ ("`se" "select" )
+ ("`sq" "sequence" )
+ ("`su" "subroutine" )
+ ("`ta" "target" )
+ ("`tr" ".true." )
+ ("`t" "type" )
+ ("`wh" "where" )
+ ("`wr" "write" )))
+ f90-mode-abbrev-table)
+ "Abbrev table for F90 mode.")
\f
+
;;;###autoload
(defun f90-mode ()
- "Major mode for editing Fortran 90 code in free format.
+ "Major mode for editing Fortran 90,95 code in free format.
+For fixed format code, use `fortran-mode'.
-\\[f90-indent-new-line] corrects current indentation and creates new\
+\\[f90-indent-line] indents the current line.
+\\[f90-indent-new-line] indents current line and creates a new\
indented line.
-\\[f90-indent-line] indents the current line correctly.
-\\[f90-indent-subprogram] indents the current subprogram.
+\\[f90-indent-subprogram] indents the current subprogram.
Type `? or `\\[help-command] to display a list of built-in\
abbrevs for F90 keywords.
Variables controlling indentation style and extra features:
- f90-do-indent
- Extra indentation within do blocks. (default 3)
- f90-if-indent
- Extra indentation within if/select case/where/forall blocks. (default 3)
- f90-type-indent
- Extra indentation within type/interface/block-data blocks. (default 3)
- f90-program-indent
- Extra indentation within program/module/subroutine/function blocks.
- (default 2)
- f90-continuation-indent
- Extra indentation applied to continuation lines. (default 5)
- f90-comment-region
- String inserted by \\[f90-comment-region] at start of each line in
- region. (default \"!!!$\")
- f90-indented-comment
- String holding the type of comment to be intended like code.
- This is a regular expression. (default \"!\")
- f90-directive-comment
- String of comment-like directive like \"!HPF$\", not to be indented.
- (default nil)
- f90-break-delimiters
- Regexp holding list of delimiters at which lines may be broken.
- (default \"[-+*/><=,% \\t]\")
- f90-break-before-delimiters
- Non-nil causes `f90-do-auto-fill' to break lines before delimiters.
- (default t)
- f90-beginning-ampersand
- Automatic insertion of \& at beginning of continuation lines. (default t)
- f90-smart-end
- From an END statement, check and fill the end using matching block start.
- Allowed values are 'blink, 'no-blink, and nil, which determine
- whether to blink the matching beginning.) (default 'blink)
- f90-auto-keyword-case
- Automatic change of case of keywords. (default nil)
- The possibilities are 'downcase-word, 'upcase-word, 'capitalize-word.
- f90-auto-hilit19 (default nil)
- Automatic highlighting (if hilit19 is used) at every indent or newline.
- f90-leave-line-no
- Do not left-justify line numbers. (default nil)
- f90-startup-message
- Set to nil to inhibit message first time F90 mode is used. (default t)
- f90-keywords
- List of keywords used for highlighting/upcase-keywords etc.
+`f90-do-indent'
+ Extra indentation within do blocks (default 3).
+`f90-if-indent'
+ Extra indentation within if/select case/where/forall blocks (default 3).
+`f90-type-indent'
+ Extra indentation within type/interface/block-data blocks (default 3).
+`f90-program-indent'
+ Extra indentation within program/module/subroutine/function blocks
+ (default 2).
+`f90-continuation-indent'
+ Extra indentation applied to continuation lines (default 5).
+`f90-comment-region'
+ String inserted by function \\[f90-comment-region] at start of each
+ line in region (default \"!!!$\").
+`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."
(interactive)
(kill-all-local-variables)
- (setq major-mode 'f90-mode)
- (setq mode-name "F90")
- (setq local-abbrev-table f90-mode-abbrev-table)
+ (setq major-mode 'f90-mode
+ mode-name "F90"
+ 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)
- (setq indent-tabs-mode nil)
- ;; Setting up things for font-lock
- (if (string-match "Lucid" emacs-version)
- (put 'f90-mode 'font-lock-keywords-case-fold-search t)
- ;; (make-local-variable 'font-lock-keywords) ; for Emacs version <= 19.28
- ;; (setq font-lock-keywords f90-font-lock-keywords)
- (make-local-variable 'font-lock-defaults) ; for Emacs version > 19.28
- (setq font-lock-defaults '(f90-font-lock-keywords t))
- )
- (make-local-variable 'font-lock-keywords-case-fold-search)
- (setq font-lock-keywords-case-fold-search t)
- (run-hooks 'f90-mode-hook)
- (if f90-startup-message
- (message "Emacs F90 mode; please report bugs to %s" bug-f90-mode))
- (setq f90-startup-message nil))
-\f
-;; inline-functions
-(defsubst f90-get-beg-of-line ()
- (save-excursion (beginning-of-line) (point)))
-
-(defsubst f90-get-end-of-line ()
- (save-excursion (end-of-line) (point)))
+ (set (make-local-variable 'indent-line-function) 'f90-indent-line)
+ (set (make-local-variable 'indent-region-function) 'f90-indent-region)
+ (set (make-local-variable 'require-final-newline) t)
+ (set (make-local-variable 'comment-start) "!")
+ (set (make-local-variable 'comment-start-skip) "!+ *")
+ (set (make-local-variable 'comment-indent-function) 'f90-comment-indent)
+ (set (make-local-variable 'abbrev-all-caps) t)
+ (set (make-local-variable 'normal-auto-fill-function) 'f90-do-auto-fill)
+ (setq indent-tabs-mode nil) ; auto buffer local
+ (set (make-local-variable '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))
+ (set (make-local-variable 'imenu-case-fold-search) t)
+ (set (make-local-variable 'imenu-generic-expression)
+ f90-imenu-generic-expression)
+ (set (make-local-variable 'beginning-of-defun-function)
+ 'f90-beginning-of-subprogram)
+ (set (make-local-variable 'end-of-defun-function) 'f90-end-of-subprogram)
+ (set (make-local-variable 'add-log-current-defun-function)
+ #'f90-current-defun)
+ (run-hooks 'f90-mode-hook))
+\f
+;; 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))
f90-cache-position
(point-min))))
(nth 3 (parse-partial-sexp beg-pnt (point)))))
-
+
(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))
f90-cache-position
(nth 4 (parse-partial-sexp beg-pnt (point)))))
(defsubst f90-line-continued ()
+ "Return t if the current line is a continued one.
+This includes comment lines embedded in continued lines, but
+not the last line of a continued statement."
(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) ?&))))
-
+ (beginning-of-line)
+ (while (and (looking-at "[ \t]*\\(!\\|$\\)") (zerop (forward-line -1))))
+ (end-of-line)
+ (while (f90-in-comment)
+ (search-backward "!" (line-beginning-position))
+ (skip-chars-backward "!"))
+ (skip-chars-backward " \t")
+ (= (preceding-char) ?&)))
+
+;; GM this is not right, eg a continuation line starting with a number.
+;; Need f90-code-start-position function.
+;; And yet, things seems to work with this...
+;; cf f90-indent-line
+;; (beginning-of-line) ; digits after & \n are not line-nos
+;; (if (not (save-excursion (and (f90-previous-statement)
+;; (f90-line-continued))))
+;; (f90-indent-line-no)
(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)))
+ (save-excursion (beginning-of-line) (skip-chars-forward " \t0-9")))
(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."
+If optional argument NO-LINE-NUMBER is nil, jump over a possible
+line-number before indenting."
(beginning-of-line)
- (if (not no-line-number)
+ (or 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))))
+ ;; Leave >= 1 space after line number.
+ (indent-to col (if (zerop (current-column)) 0 1)))
(defsubst f90-get-present-comment-type ()
+ "If point lies within a comment, return the string starting the comment.
+For example, \"!\" or \"!!\", followed by the appropriate amount of
+whitespace, if any."
+ ;; Include the whitespace for consistent auto-filling of comment blocks.
(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)))
+ (when (f90-in-comment)
+ (beginning-of-line)
+ (re-search-forward "!+[ \t]*" (line-end-position))
+ (while (f90-in-string)
+ (re-search-forward "!+[ \t]*" (line-end-position)))
+ (match-string-no-properties 0))))
(defsubst f90-equal-symbols (a b)
- "Compare strings neglecting case and allowing for nil value."
- (let ((a-local (if a (downcase a) nil))
- (b-local (if b (downcase b) nil)))
- (equal a-local b-local)))
-
-;; There seems to be a bug in XEmacs matching of regular expressions.
-;; One cannot extract the label directly for do,if, and select case.
-;; Therefore, the following functions are longer than necessary.
+ "Compare strings A and B neglecting case and allowing for nil value."
+ (equal (if a (downcase a) nil)
+ (if b (downcase b) nil)))
(defsubst f90-looking-at-do ()
- "Return (\"do\" name) if a do statement starts after point.
-Name is nil if the statement has no label."
- (let (struct (label nil))
- (if (looking-at (concat "\\(\\(" f90-symbol-re "\\)[ \t]*\:\\)?"
- "[ \t]*\\(do\\)\\b"))
- (progn
- (setq struct (f90-match-piece 3))
- (if (looking-at (concat "\\(" f90-symbol-re "\\)[ \t]*\:"))
- (setq label (f90-match-piece 1)))
- (list struct label)))))
+ "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\\)\\>")
+ (list (match-string 3) (match-string 2))))
+
+(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]*(")
+ (list (match-string 3) (match-string 2))))
(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."
+ "Return (\"if\" NAME) if an if () then statement starts after point.
+NAME is nil if the statement has no label."
(save-excursion
- (let (struct (label nil))
- (if (looking-at (concat "\\(\\(" f90-symbol-re "\\)[ \t]*\:\\)?"
- "[ \t]*\\(if\\)\\b"))
- (progn
- (setq struct (f90-match-piece 3))
- (if (looking-at (concat "\\(" f90-symbol-re "\\)[ \t]*\:"))
- (setq label (f90-match-piece 1)))
- (goto-char (scan-lists (point) 1 0))
- (skip-chars-forward " \t")
- (if (or (looking-at "then\\b")
- (if (f90-line-continued)
- (progn
- (f90-next-statement)
- (skip-chars-forward " \t0-9&")
- (looking-at "then\\b"))))
- (list struct label)))))))
-
-(defsubst f90-looking-at-select-case ()
- "Return (\"select\" name) if a select-case statement starts after point.
-Name is nil if the statement has no label."
- (let (struct (label nil))
- (if (looking-at (concat "\\(\\(" f90-symbol-re "\\)[ \t]*\:\\)?"
- "[ \t]*\\(select\\)[ \t]*case[ \t]*("))
- (progn
- (setq struct (f90-match-piece 3))
- (if (looking-at (concat "\\(" f90-symbol-re "\\)[ \t]*\:"))
- (setq label (f90-match-piece 1)))
- (list struct label)))))
+ (when (looking-at "\\(\\(\\sw+\\)[ \t]*:\\)?[ \t]*\\(if\\)\\>")
+ (let ((struct (match-string 3))
+ (label (match-string 2))
+ (pos (scan-lists (point) 1 0)))
+ (and pos (goto-char pos))
+ (skip-chars-forward " \t")
+ (if (or (looking-at "then\\>")
+ (when (f90-line-continued)
+ (f90-next-statement)
+ (skip-chars-forward " \t0-9&")
+ (looking-at "then\\>")))
+ (list struct label))))))
(defsubst f90-looking-at-where-or-forall ()
- "Return (kind nil) if where/forall...end starts after point."
+ "Return (KIND NAME) if a where or forall block starts after point.
+NAME is nil if the statement has no label."
(save-excursion
- (let (command)
- (if (looking-at "\\(where\\|forall\\)[ \t]*(")
- (progn
- (setq command (list (f90-match-piece 1) nil))
- (goto-char (scan-lists (point) 1 0))
- (skip-chars-forward " \t")
- (if (looking-at "\\(!\\|$\\)")
- command))))))
+ (when (looking-at "\\(\\(\\sw+\\)[ \t]*:\\)?[ \t]*\
+\\(where\\|forall\\)\\>")
+ (let ((struct (match-string 3))
+ (label (match-string 2))
+ (pos (scan-lists (point) 1 0)))
+ (and pos (goto-char pos))
+ (skip-chars-forward " \t")
+ (if (looking-at "\\(!\\|$\\)") (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 (concat "\\(type\\)[ \t]+\\(" f90-symbol-re "\\)\\>"))
- (list (f90-match-piece 1) (f90-match-piece 2)))
- ((looking-at f90-p-type-re)
- (list (f90-match-piece 1) (f90-match-piece 3)))
- ((looking-at "\\(interface\\)\\>")
- (list (f90-match-piece 1) nil))
- ((looking-at "\\(block[ \t]*data\\)\\>")
- (list (f90-match-piece 1) nil))))
+ "Return (KIND NAME) if a type/interface/block-data block starts after point.
+NAME is non-nil only for type."
+ (cond
+ ((looking-at f90-type-def-re)
+ (list (match-string 1) (match-string 2)))
+ ((looking-at "\\(interface\\|block[\t]*data\\)\\>")
+ (list (match-string 1) nil))))
(defsubst f90-looking-at-program-block-start ()
- "Return (kind name) if a program block with name name starts after point."
+ "Return (KIND NAME) if a program block with name NAME starts after point."
(cond
- ((looking-at (concat "\\(program\\)[ \t]+\\(" f90-symbol-re "\\)\\b"))
- (list (f90-match-piece 1) (f90-match-piece 2)))
+ ((looking-at "\\(program\\)[ \t]+\\(\\sw+\\)\\>")
+ (list (match-string 1) (match-string 2)))
((and (not (looking-at "module[ \t]*procedure\\>"))
- (looking-at (concat "\\(module\\)[ \t]+\\("
- f90-symbol-re "\\)\\b")))
- (list (f90-match-piece 1) (f90-match-piece 2)))
- ((looking-at (concat "\\(recursive[ \t]*\\)?\\(subroutine\\)[ \t]+\\("
- f90-symbol-re "\\)"))
- (list (f90-match-piece 2) (f90-match-piece 3)))
- ((looking-at (concat "[a-z0-9()_ \t]*\\(function\\)[ \t]+\\("
- f90-symbol-re "\\)[ \t]*("))
- (list (f90-match-piece 1) (f90-match-piece 2)))))
+ (looking-at "\\(module\\)[ \t]+\\(\\sw+\\)\\>"))
+ (list (match-string 1) (match-string 2)))
+ ((and (not (looking-at "end[ \t]*\\(function\\|subroutine\\)"))
+ (looking-at "[^!'\"\&\n]*\\(function\\|subroutine\\)[ \t]+\
+\\(\\sw+\\)"))
+ (list (match-string 1) (match-string 2)))))
(defsubst f90-looking-at-program-block-end ()
- "Return list of type and name of end of block."
- (if (looking-at (concat "end[ \t]*" f90-blocks-re "?\\([ \t]+\\("
- f90-symbol-re "\\)\\)?\\>"))
- (list (f90-match-piece 1) (f90-match-piece 3))))
+ "Return (KIND NAME) if a block with name NAME ends after point."
+ (if (looking-at (concat "end[ \t]*" f90-blocks-re
+ "?\\([ \t]+\\(\\sw+\\)\\)?\\>"))
+ (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'.
+All others return `comment-column', leaving at least one space after code."
(cond ((looking-at "!!!") 0)
- ((and f90-directive-comment
- (looking-at (regexp-quote f90-directive-comment))) 0)
+ ((and f90-directive-comment-re
+ (looking-at f90-directive-comment-re)) 0)
((looking-at (regexp-quote f90-comment-region)) 0)
- ((looking-at f90-indented-comment)
+ ((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."
+ "Return continuation properties of present statement.
+Possible return values are:
+single - statement is not continued.
+begin - current line is the first in a continued statement.
+end - current line is the last in a continued statement
+middle - current line is neither first nor last in a continued statement.
+Comment lines embedded amongst continued lines return 'middle."
(let (pcont cont)
(save-excursion
- (setq pcont (if (f90-previous-statement) (f90-line-continued) nil)))
+ (setq pcont (if (f90-previous-statement) (f90-line-continued))))
(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)))))
+ (t (error "The impossible occurred")))))
(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)))
+ "If `f90-leave-line-no' is nil, left-justify a line number.
+Leaves point at the first non-blank character after the line number.
+Call from beginning of line."
+ (and (null f90-leave-line-no) (looking-at "[ \t]+[0-9]")
+ (delete-horizontal-space))
(skip-chars-forward " \t0-9"))
(defsubst f90-no-block-limit ()
- (let ((eol (f90-get-end-of-line)))
- (save-excursion
- (not (or (looking-at "end")
- (looking-at "\\(do\\|if\\|else\\|select[ \t]*case\\|\
-case\\|where\\|forall\\)\\>")
- (looking-at "\\(program\\|module\\|interface\\|\
+ "Return nil if point is at the edge of a code block.
+Searches line forward for \"function\" or \"subroutine\",
+if all else fails."
+ (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\\|continue\\|\\sw+[ \t]*:\\)")
- (looking-at "type[ \t]+\\sw+")
- (looking-at f90-p-type-re)
- (re-search-forward "\\(function\\|subroutine\\)" eol t))))))
+ (looking-at "\\(contains\\|\\sw+[ \t]*:\\)")
+ (looking-at f90-type-def-re)
+ (re-search-forward "\\(function\\|subroutine\\)"
+ (line-end-position) t)))))
(defsubst f90-update-line ()
- (let (bol eol)
- (if (or f90-auto-keyword-case f90-auto-hilit19)
- (progn (setq bol (f90-get-beg-of-line)
- eol (f90-get-end-of-line))
- (if f90-auto-keyword-case
- (f90-change-keywords f90-auto-keyword-case bol eol))
- (if (and f90-auto-hilit19 (fboundp 'hilit-rehighlight-region))
- (hilit-rehighlight-region bol eol t))))))
+ "Change case of current line as per `f90-auto-keyword-case'."
+ (if f90-auto-keyword-case
+ (f90-change-keywords f90-auto-keyword-case
+ (line-beginning-position) (line-end-position))))
\f
+(defun f90-electric-insert ()
+ "Change keyword case and auto-fill line as operators are inserted."
+ (interactive)
+ (self-insert-command 1)
+ (if auto-fill-function (f90-do-auto-fill) ; also updates line
+ (f90-update-line)))
+
+
(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)
+ (let ((epnt (line-end-position)) icol cont)
(save-excursion
(while (and (f90-previous-statement)
(or (progn
(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)))
+ (when (re-search-forward "\\(if\\|do\\|select\\|where\\|forall\\)"
+ (line-end-position) t)
+ (beginning-of-line)
+ (skip-chars-forward " \t")
+ (cond ((f90-looking-at-do)
+ (setq icol (+ icol f90-do-indent)))
+ ((or (f90-looking-at-if-then)
+ (f90-looking-at-where-or-forall)
+ (f90-looking-at-select-case))
+ (setq icol (+ icol f90-if-indent))))
+ (end-of-line))
(while (re-search-forward
- "\\(if\\|do\\|select\\|where\\|forall\\|continue\\)" epnt t)
- (beginning-of-line) (skip-chars-forward " \t0-9")
- (cond ((f90-looking-at-do)
- (setq icol (+ icol f90-do-indent)))
- ((or (f90-looking-at-if-then)
- (f90-looking-at-where-or-forall)
- (f90-looking-at-select-case))
- (setq icol (+ icol f90-if-indent)))
- ((looking-at f90-end-if-re)
- (setq icol (- icol f90-if-indent)))
- ((looking-at "\\(end[ \t]*do\\|continue\\)\\>")
- (setq icol (- icol f90-do-indent))))
+ "\\(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)
(cond ((eq cont 'begin)
(setq icol (+ (f90-current-indentation)
f90-continuation-indent)))
- ((eq cont 'middle) (setq icol(current-indentation)))
+ ((eq cont 'middle) (setq icol (current-indentation)))
(t (setq icol (f90-current-indentation))
(skip-chars-forward " \t")
(if (looking-at "[0-9]")
(cond ((or (f90-looking-at-if-then)
(f90-looking-at-where-or-forall)
(f90-looking-at-select-case)
- (looking-at f90-else-like-re))
+ (looking-at f90-else-like-re))
(setq icol (+ icol f90-if-indent)))
((f90-looking-at-do)
(setq icol (+ icol f90-do-indent)))
(goto-char pnt)
(beginning-of-line)
(cond ((looking-at "[ \t]*$"))
- ((looking-at "[ \t]*#") ; Check for cpp directive.
+ ((looking-at "[ \t]*#") ; check for cpp directive
(setq icol 0))
(t
(skip-chars-forward " \t0-9")
(cond ((or (looking-at f90-else-like-re)
(looking-at f90-end-if-re))
(setq icol (- icol f90-if-indent)))
- ((looking-at "\\(end[ \t]*do\\|continue\\)\\>")
+ ((looking-at "end[ \t]*do\\>")
(setq icol (- icol f90-do-indent)))
((looking-at f90-end-type-re)
(setq icol (- icol f90-type-indent)))
))))
icol))
\f
-;; Statement = statement line, a line which is neither blank, nor a comment.
(defun f90-previous-statement ()
"Move point to beginning of the previous F90 statement.
-Return nil if no previous statement is found."
+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)
(while (and (setq not-first-statement (zerop (forward-line -1)))
- (looking-at "[ \t0-9]*\\(!\\|$\\)")))
+ (looking-at "[ \t0-9]*\\(!\\|$\\|#\\)")))
not-first-statement))
(defun f90-next-statement ()
not-last-statement))
(defun f90-beginning-of-subprogram ()
- "Move point to the beginning of subprogram.
-Return (type name) or nil if not found."
+ "Move point to the beginning of the current 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))
+ (beginning-of-line)
+ (while (and (> count 0)
(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)
+ (skip-chars-forward " \t0-9")
+ (cond ((setq matching-beg (f90-looking-at-program-block-start))
+ (setq count (1- count)))
+ ((f90-looking-at-program-block-end)
+ (setq count (1+ count)))))
(beginning-of-line)
(if (zerop count)
matching-beg
- (message "No beginning-found.")
+ (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."
+ "Move point to the end of the current 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)))
+ (let ((case-fold-search t)
+ (count 1)
+ matching-end)
(end-of-line)
- (while (and (not (zerop count))
+ (while (and (> count 0)
(re-search-forward f90-program-block-re nil 'move))
- (beginning-of-line) (skip-chars-forward " \t0-9")
+ (beginning-of-line)
+ (skip-chars-forward " \t0-9")
(cond ((f90-looking-at-program-block-start)
- (setq count (+ count 1)))
+ (setq count (1+ count)))
((setq matching-end (f90-looking-at-program-block-end))
- (setq count (1- count ))))
+ (setq count (1- count))))
(end-of-line))
- (forward-line 1)
+ ;; This means f90-end-of-subprogram followed by f90-start-of-subprogram
+ ;; has a net non-zero effect, which seems odd.
+;;; (forward-line 1)
(if (zerop count)
matching-end
(message "No end found.")
nil)))
+
+(defun f90-end-of-block (&optional num)
+ "Move point forward to the end of the current code block.
+With optional argument NUM, go forward that many balanced blocks.
+If NUM is negative, go backward to the start of a block.
+Checks for consistency of block types and labels (if present),
+and completes outermost block if necessary."
+ (interactive "p")
+ (if (and num (< num 0)) (f90-beginning-of-block (- num)))
+ (let ((f90-smart-end nil) ; for the final `f90-match-end'
+ (case-fold-search t)
+ (count (or num 1))
+ start-list start-this start-type start-label end-type end-label)
+ (if (interactive-p) (push-mark (point) t))
+ (end-of-line) ; probably want this
+ (while (and (> count 0) (re-search-forward f90-blocks-re nil 'move))
+ (beginning-of-line)
+ (skip-chars-forward " \t0-9")
+ (cond ((or (f90-in-string) (f90-in-comment)))
+ ((setq start-this
+ (or
+ (f90-looking-at-do)
+ (f90-looking-at-select-case)
+ (f90-looking-at-type-like)
+ (f90-looking-at-program-block-start)
+ (f90-looking-at-if-then)
+ (f90-looking-at-where-or-forall)))
+ (setq start-list (cons start-this start-list) ; not add-to-list!
+ count (1+ count)))
+ ((looking-at (concat "end[ \t]*" f90-blocks-re
+ "[ \t]*\\(\\sw+\\)?"))
+ (setq end-type (match-string 1)
+ end-label (match-string 2)
+ count (1- count))
+ ;; Check any internal blocks.
+ (when start-list
+ (setq start-this (car start-list)
+ start-list (cdr start-list)
+ start-type (car start-this)
+ start-label (cadr start-this))
+ (or (f90-equal-symbols start-type end-type)
+ (error "End type `%s' does not match start type `%s'"
+ end-type start-type))
+ (or (f90-equal-symbols start-label end-label)
+ (error "End label `%s' does not match start label `%s'"
+ end-label start-label)))))
+ (end-of-line))
+ (if (> count 0) (error "Missing block end"))
+ ;; Check outermost block.
+ (if (interactive-p)
+ (save-excursion
+ (beginning-of-line)
+ (skip-chars-forward " \t0-9")
+ (f90-match-end)))))
+
+(defun f90-beginning-of-block (&optional num)
+ "Move point backwards to the start of the current code block.
+With optional argument NUM, go backward that many balanced blocks.
+If NUM is negative, go forward to the end of a block.
+Checks for consistency of block types and labels (if present).
+Does not check the outermost block, because it may be incomplete."
+ (interactive "p")
+ (if (and num (< num 0)) (f90-end-of-block (- num)))
+ (let ((case-fold-search t)
+ (count (or num 1))
+ end-list end-this end-type end-label
+ start-this start-type start-label)
+ (if (interactive-p) (push-mark (point) t))
+ (beginning-of-line) ; probably want this
+ (while (and (> count 0) (re-search-backward f90-blocks-re nil 'move))
+ (beginning-of-line)
+ (skip-chars-forward " \t0-9")
+ (cond ((or (f90-in-string) (f90-in-comment)))
+ ((looking-at (concat "end[ \t]*" f90-blocks-re
+ "[ \t]*\\(\\sw+\\)?"))
+ (setq end-list (cons (list (match-string 1) (match-string 2))
+ end-list)
+ count (1+ count)))
+ ((setq start-this
+ (or
+ (f90-looking-at-do)
+ (f90-looking-at-select-case)
+ (f90-looking-at-type-like)
+ (f90-looking-at-program-block-start)
+ (f90-looking-at-if-then)
+ (f90-looking-at-where-or-forall)))
+ (setq start-type (car start-this)
+ start-label (cadr start-this)
+ count (1- count))
+ ;; Check any internal blocks.
+ (when end-list
+ (setq end-this (car end-list)
+ end-list (cdr end-list)
+ end-type (car end-this)
+ end-label (cadr end-this))
+ (or (f90-equal-symbols start-type end-type)
+ (error "Start type `%s' does not match end type `%s'"
+ start-type end-type))
+ (or (f90-equal-symbols start-label end-label)
+ (error "Start label `%s' does not match end label `%s'"
+ start-label end-label))))))
+ (if (> count 0) (error "Missing block start"))))
+
+(defun f90-next-block (&optional num)
+ "Move point forward to the next end or start of a code block.
+With optional argument NUM, go forward that many blocks.
+If NUM is negative, go backwards.
+A block is a subroutine, if-endif, etc."
+ (interactive "p")
+ (let ((case-fold-search t)
+ (count (if num (abs num) 1)))
+ (while (and (> count 0)
+ (if (> num 0) (re-search-forward f90-blocks-re nil 'move)
+ (re-search-backward f90-blocks-re nil 'move)))
+ (beginning-of-line)
+ (skip-chars-forward " \t0-9")
+ (cond ((or (f90-in-string) (f90-in-comment)))
+ ((or
+ (looking-at "end[ \t]*")
+ (f90-looking-at-do)
+ (f90-looking-at-select-case)
+ (f90-looking-at-type-like)
+ (f90-looking-at-program-block-start)
+ (f90-looking-at-if-then)
+ (f90-looking-at-where-or-forall))
+ (setq count (1- count))))
+ (if (> num 0) (end-of-line)
+ (beginning-of-line)))))
+
+
+(defun f90-previous-block (&optional num)
+ "Move point backward to the previous end or start of a code block.
+With optional argument NUM, go backward that many blocks.
+If NUM is negative, go forwards.
+A block is a subroutine, if-endif, etc."
+ (interactive "p")
+ (f90-next-block (- (or num 1))))
+
+
(defun f90-mark-subprogram ()
- "Put mark at end of F90 subprogram, point at beginning.
-Marks are pushed and highlight (grey shadow) is turned on."
+ "Put mark at end of F90 subprogram, point at beginning, push mark."
(interactive)
(let ((pos (point)) program)
(f90-end-of-subprogram)
- (push-mark (point) t)
+ (push-mark)
(goto-char pos)
(setq program (f90-beginning-of-subprogram))
- ;; The keywords in the preceding lists assume case-insensitivity.
- (if (string-match "Lucid" emacs-version)
- (zmacs-activate-region)
- (setq mark-active t)
- (setq deactivate-mark nil))
+ (if (fboundp 'zmacs-activate-region)
+ (zmacs-activate-region)
+ (setq mark-active t
+ 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."
+Insert the variable `f90-comment-region' at the start of every line
+in the region, or, if already present, remove it."
(interactive "*r")
- (let ((end (make-marker)))
- (set-marker end end-region)
+ (let ((end (copy-marker 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)))
+ (while (and (zerop (forward-line 1))
+ (< (point) 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))
+ "Indent current line as F90 code.
+Unless optional argument NO-UPDATE is non-nil, call `f90-update-line'
+after indenting."
+ (interactive "*P")
+ (let ((case-fold-search t)
+ (pos (point-marker))
+ indent no-line-number)
+ (beginning-of-line) ; digits after & \n are not line-nos
+ (if (not (save-excursion (and (f90-previous-statement)
+ (f90-line-continued))))
+ (f90-indent-line-no)
+ (setq no-line-number t)
+ (skip-chars-forward " \t"))
(if (looking-at "!")
(setq indent (f90-comment-indent))
- (if (and (looking-at "end") f90-smart-end) (f90-match-end))
+ (and f90-smart-end (looking-at "end")
+ (f90-match-end))
(setq indent (f90-calculate-indent)))
- (if (zerop (- indent (current-column)))
- nil
- (f90-indent-to indent no-line-number))
+ (or (= indent (current-column))
+ (f90-indent-to indent no-line-number))
;; If initial point was within line's indentation,
;; position after the indentation. Else stay at same point in text.
- (if (< (point) (marker-position pos))
- (goto-char (marker-position pos)))
- (if (not no-update) (f90-update-line))
- (if (and auto-fill-function
- (> (save-excursion (end-of-line) (current-column)) fill-column))
- (save-excursion (f90-do-auto-fill)))
+ (and (< (point) pos)
+ (goto-char pos))
+ (if auto-fill-function
+ ;; GM NO-UPDATE not honoured, since this calls f90-update-line.
+ (f90-do-auto-fill)
+ (or no-update (f90-update-line)))
(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.
+ "Re-indent current line, insert a newline and indent the newline.
+An abbrev before point is expanded if the variable `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)
+ (interactive "*")
+ (if abbrev-mode (expand-abbrev))
+ (beginning-of-line) ; reindent where likely to be needed
+ (f90-indent-line) ; calls indent-line-no, update-line
+ (end-of-line)
+ (delete-horizontal-space) ; destroy trailing whitespace
+ (let ((string (f90-in-string))
+ (cont (f90-line-continued)))
+ (and string (not cont) (insert "&"))
(newline)
- (if (or string (and cont f90-beginning-ampersand)) (insert "&"))
- (f90-indent-line 'no-update)))
+ (if (or string (and cont f90-beginning-ampersand)) (insert "&")))
+ (f90-indent-line 'no-update)) ; nothing to 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)
+ (let ((end-region-mark (copy-marker end-region))
+ (save-point (point-marker))
+ block-list ind-lev ind-curr ind-b cont struct beg-struct end-struct)
(goto-char beg-region)
- ;; first find a line which is not a continuation line or comment
+ ;; First find a line which is not a continuation line or comment.
(beginning-of-line)
- (while (and (looking-at "[ \t]*[0-9]*\\(!\\|[ \t]*$\\)")
+ (while (and (looking-at "[ \t]*[0-9]*\\(!\\|#\\|[ \t]*$\\)")
(progn (f90-indent-line 'no-update)
(zerop (forward-line 1)))
(< (point) end-region-mark)))
(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
+ ;; 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)
+ (setq ind-lev (f90-current-indentation)
+ ind-curr ind-lev)
+ (beginning-of-line)
+ (skip-chars-forward " \t0-9")
+ (setq struct nil
+ 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)
- ((or(setq struct (f90-looking-at-program-block-start))
- (looking-at "contains[ \t]*\\($\\|!\\)"))
+ ((or (setq struct (f90-looking-at-program-block-start))
+ (looking-at "contains[ \t]*\\($\\|!\\)"))
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))
+ (if (looking-at "[ \t]*!")
+ (f90-indent-to (f90-comment-indent))
+ (or (= (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))
((setq end-struct (f90-looking-at-program-block-end))
(setq beg-struct (car block-list)
block-list (cdr block-list))
- (if f90-smart-end
+ (if f90-smart-end
(save-excursion
- (f90-block-match (car beg-struct)(car (cdr beg-struct))
- (car end-struct)(car (cdr end-struct)))))
+ (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)
f90-program-indent)))
(if ind-b (setq ind-lev (- ind-lev ind-b)))
(setq ind-curr ind-lev))
- ((looking-at "continue\\>")
- (setq ind-lev (- ind-lev f90-do-indent))
- (setq ind-curr ind-lev)
- (setq block-list (cdr block-list)))
(t (setq ind-curr ind-lev)))
- ;; do the indentation if necessary
- (if (not (zerop (- ind-curr (current-column))))
+ ;; Do the indentation if necessary.
+ (or (= 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
+ (if (looking-at "[ \t]*!")
+ (f90-indent-to (f90-comment-indent))
+ (or (= (current-indentation)
+ (+ ind-curr f90-continuation-indent))
+ (f90-indent-to
+ (+ ind-curr f90-continuation-indent) 'no-line-no)))))
+ ;; Restore point, etc.
(setq f90-cache-position nil)
(goto-char save-point)
(set-marker end-region-mark nil)
(set-marker save-point nil)
- (if (string-match "Lucid" emacs-version)
- (zmacs-deactivate-region)
+ (if (fboundp 'zmacs-deactivate-region)
+ (zmacs-deactivate-region)
(deactivate-mark))))
(defun f90-indent-subprogram ()
- "Properly indent the subprogram which contains point."
- (interactive)
+ "Properly indent the subprogram containing point."
+ (interactive "*")
(save-excursion
- (let (program)
- (setq program (f90-mark-subprogram))
+ (let ((program (f90-mark-subprogram)))
(if program
(progn
- (message (concat "Indenting " (car program) " "
- (car (cdr program))"."))
- (f90-indent-region (point) (mark))
- (message (concat "Indenting " (car program) " "
- (car (cdr program)) "...done.")))
- (message "Indenting the whole file.")
- (f90-indent-region (point) (mark))
- (message (concat "Indenting the whole file...done."))))))
-
-;; autofill and break-line
+ (message "Indenting %s %s..."
+ (car program) (car (cdr program)))
+ (indent-region (point) (mark) nil)
+ (message "Indenting %s %s...done"
+ (car program) (car (cdr program))))
+ (message "Indenting the whole file...")
+ (indent-region (point) (mark) nil)
+ (message "Indenting the whole file...done")))))
+
(defun f90-break-line (&optional no-update)
- "Break line at point, insert continuation marker(s) and indent."
- (interactive)
- (let (ctype)
- (cond ((f90-in-string)
- (insert "&") (newline) (insert "&"))
- ((f90-in-comment)
- (delete-horizontal-space)
- (setq ctype (f90-get-present-comment-type))
- (newline) (insert (concat ctype " ")))
- (t (delete-horizontal-space)
- (insert "&")
- (if (not no-update) (f90-update-line))
- (newline)
- (if f90-beginning-ampersand (insert "& ")))))
- (if (not no-update) (f90-indent-line)))
-
+ "Break line at point, insert continuation marker(s) and indent.
+Unless in a string or comment, or if the optional argument NO-UPDATE
+is non-nil, call `f90-update-line' after inserting the continuation marker."
+ (interactive "*P")
+ (cond ((f90-in-string)
+ (insert "&\n&"))
+ ((f90-in-comment)
+ (delete-horizontal-space 'backwards) ; remove trailing whitespace
+ (insert "\n" (f90-get-present-comment-type)))
+ (t (insert "&")
+ (or no-update (f90-update-line))
+ (newline 1)
+ (if f90-beginning-ampersand (insert "&"))))
+ (indent-according-to-mode))
+
(defun f90-find-breakpoint ()
- "From fill-column, search backward for break-delimiter."
- (let ((bol (f90-get-beg-of-line)))
- (re-search-backward f90-break-delimiters bol)
- (if f90-break-before-delimiters
- (progn (backward-char)
- (if (not (looking-at f90-no-break-re))
- (forward-char)))
- (if (looking-at f90-no-break-re)
- (forward-char 2)
- (forward-char)))))
-
-(defun f90-auto-fill-mode (arg)
- "Toggle f90-auto-fill mode.
-With ARG, turn `f90-auto-fill' mode on iff ARG is positive.
-In `f90-auto-fill' mode, inserting a space at a column beyond `fill-column'
-automatically breaks the line at a previous space."
- (interactive "P")
- (prog1 (setq auto-fill-function
- (if (if (null arg)
- (not auto-fill-function)
- (> (prefix-numeric-value arg) 0))
- 'f90-do-auto-fill))
- (force-mode-line-update)))
+ "From `fill-column', search backward for break-delimiter."
+ (re-search-backward f90-break-delimiters (line-beginning-position))
+ (if (not f90-break-before-delimiters)
+ (forward-char (if (looking-at f90-no-break-re) 2 1))
+ (backward-char)
+ (or (looking-at f90-no-break-re)
+ (forward-char))))
(defun f90-do-auto-fill ()
- "Break line if non-white characters beyond fill-column."
- (interactive)
- ;; Break the line before or after the last delimiter (non-word char).
- ;; Will not break **, //, or => (specified by f90-no-break-re).
- (move-to-column fill-column)
- (if (and (looking-at "[ \t]*$") (not (f90-in-string)))
- (delete-horizontal-space)
- (f90-find-breakpoint)
- (f90-break-line)
- (end-of-line)))
-
-(defun f90-join-lines ()
- "Join present line with next line, if this line ends with \&."
- (interactive)
- (let (pos (oldpos (point)))
- (end-of-line)
+ "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)
+ ;; Need this for `f90-electric-insert' and other f90- callers.
+ (unless (and (boundp 'comment-auto-fill-only-comments)
+ comment-auto-fill-only-comments
+ (not (f90-in-comment)))
+ (while (> (current-column) fill-column)
+ (let ((pos-mark (point-marker)))
+ (move-to-column fill-column)
+ (or (f90-in-string) (f90-find-breakpoint))
+ (f90-break-line)
+ (goto-char pos-mark)
+ (set-marker pos-mark nil)))))
+
+(defun f90-join-lines (&optional arg)
+ "Join current line to previous, fix whitespace, continuation, comments.
+With optional argument ARG, join current line to following line.
+Like `join-line', but handles F90 syntax."
+ (interactive "*P")
+ (beginning-of-line)
+ (if arg (forward-line 1))
+ (when (eq (preceding-char) ?\n)
+ (skip-chars-forward " \t")
+ (if (looking-at "\&") (delete-char 1))
+ (beginning-of-line)
+ (delete-region (point) (1- (point)))
(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))))
+ (and (eq (preceding-char) ?&) (delete-char -1))
+ (and (f90-in-comment)
+ (looking-at "[ \t]*!+")
+ (replace-match ""))
+ (or (f90-in-string)
+ (fixup-whitespace))))
(defun f90-fill-region (beg-region end-region)
- "Fill every line in region by forward parsing. Join lines if possible."
+ "Fill every line in region by forward parsing. Join lines if possible."
(interactive "*r")
- (let ((end-region-mark (make-marker))
- (f90-smart-end nil) (f90-auto-keyword-case nil)
- (f90-auto-hilit19 nil) indent (go-on t)
- (af-function auto-fill-function) (auto-fill-function nil))
- (set-marker end-region-mark end-region)
+ (let ((end-region-mark (copy-marker end-region))
+ (go-on t)
+ f90-smart-end f90-auto-keyword-case auto-fill-function)
(goto-char beg-region)
(while go-on
- ;; join as much as possible
- (while (f90-join-lines));
- (setq indent (+ (f90-current-indentation) f90-continuation-indent))
- ;; chop the line if necessary
+ ;; Join as much as possible.
+ (while (progn
+ (end-of-line)
+ (skip-chars-backward " \t")
+ (eq (preceding-char) ?&))
+ (f90-join-lines 'forward))
+ ;; Chop the line if necessary.
(while (> (save-excursion (end-of-line) (current-column))
fill-column)
(move-to-column fill-column)
- (if (and (looking-at "[ \t]*$") (not (f90-in-string)))
- (delete-horizontal-space)
- (f90-find-breakpoint)
- (f90-break-line 'no-update)
- (f90-indent-to indent 'no-line-no)))
- (setq go-on (and (< (point) (marker-position end-region-mark))
- (zerop (forward-line 1))))
- (setq f90-cache-position (point)))
- (setq auto-fill-function af-function)
+ (f90-find-breakpoint)
+ (f90-break-line 'no-update))
+ (setq go-on (and (< (point) end-region-mark)
+ (zerop (forward-line 1)))
+ f90-cache-position (point)))
(setq f90-cache-position nil)
- (if (string-match "Lucid" emacs-version)
- (zmacs-deactivate-region)
+ (set-marker end-region-mark nil)
+ (if (fboundp 'zmacs-deactivate-region)
+ (zmacs-deactivate-region)
(deactivate-mark))))
\f
(defun f90-block-match (beg-block beg-name end-block end-name)
"Match end-struct with beg-struct and complete end-block if possible.
+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" (f90-get-end-of-line))
+ (search-forward "end" (line-end-position))
(catch 'no-match
- (if (not (f90-equal-symbols beg-block end-block))
- (if end-block
- (progn
- (message "END %s does not match %s." end-block beg-block)
- (end-of-line)
- (throw 'no-match nil))
- (message "Inserting %s." beg-block)
- (insert (concat " " beg-block)))
- (search-forward end-block))
- (if (not (f90-equal-symbols beg-name end-name))
- (cond ((and beg-name (not end-name))
- (message "Inserting %s." beg-name)
- (insert (concat " " beg-name)))
- ((and beg-name end-name)
- (message "Replacing %s with %s." end-name beg-name)
- (search-forward end-name)
- (replace-match beg-name))
- ((and (not beg-name) end-name)
- (message "Deleting %s." end-name)
- (search-forward end-name)
- (replace-match "")))
- (if end-name (search-forward end-name)))
- (if (not (looking-at "!")) (delete-horizontal-space))))
+ (if (f90-equal-symbols beg-block end-block)
+ (search-forward 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))))
+ (if (f90-equal-symbols beg-name end-name)
+ (and end-name (search-forward 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 ""))))
+ (or (looking-at "[ \t]*!") (delete-horizontal-space))))
(defun f90-match-end ()
- "From an end foo statement, find the corresponding foo including name."
+ "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)
- beg-name end-name beg-block end-block end-struct)
- (if (save-excursion (beginning-of-line) (skip-chars-forward " \t0-9")
- (setq end-struct (f90-looking-at-program-block-end)))
- (progn
- (setq end-block (car end-struct))
- (setq end-name (car (cdr end-struct)))
- (save-excursion
- (beginning-of-line)
- (while (and (not (zerop count))
- (re-search-backward
- (concat "\\(" f90-blocks-re "\\|continue\\)") nil t))
- (beginning-of-line) (skip-chars-forward " \t0-9")
- (cond ((setq matching-beg
- (cond
- ((f90-looking-at-do))
- ((f90-looking-at-if-then))
- ((f90-looking-at-where-or-forall))
- ((f90-looking-at-select-case))
- ((f90-looking-at-type-like))
- ((f90-looking-at-program-block-start))))
- (setq count (- count 1)))
- ((looking-at (concat "end[ \t]*" f90-blocks-re "\\b"))
- (setq count (+ count 1)))
- ((looking-at "continue\\>") (setq count (+ count 1)))))
- (if (not (zerop count))
- (message "No matching beginning.")
- (f90-update-line)
- (if (eq f90-smart-end 'blink)
- (if (< (point) top-of-window)
- (message (concat
- "Matches " (what-line) ": "
- (buffer-substring
- (progn (beginning-of-line) (point))
- (progn (end-of-line) (point)))))
- (sit-for 1)))
- (setq beg-block (car matching-beg))
- (setq beg-name (car (cdr matching-beg)))
- (goto-char end-point)
- (beginning-of-line)
- (f90-block-match beg-block beg-name end-block end-name)))))))
+ (let ((count 1)
+ (top-of-window (window-start))
+ (end-point (point))
+ (case-fold-search t)
+ matching-beg beg-name end-name beg-block end-block end-struct)
+ (when (save-excursion (beginning-of-line) (skip-chars-forward " \t0-9")
+ (setq end-struct (f90-looking-at-program-block-end)))
+ (setq end-block (car end-struct)
+ end-name (car (cdr end-struct)))
+ (save-excursion
+ (beginning-of-line)
+ (while (and (> count 0) (re-search-backward f90-blocks-re nil t))
+ (beginning-of-line)
+ ;; GM not a line number if continued line.
+;;; (skip-chars-forward " \t")
+;;; (skip-chars-forward "0-9")
+ (skip-chars-forward " \t0-9")
+ (cond ((or (f90-in-string) (f90-in-comment)))
+ ((setq matching-beg
+ (or
+ (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 (1- count)))
+ ((looking-at (concat "end[ \t]*" f90-blocks-re))
+ (setq count (1+ count)))))
+ (if (> count 0)
+ (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
+ (line-beginning-position)
+ (line-end-position)))
+ (sit-for 1)))
+ (setq beg-block (car matching-beg)
+ 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 a complete end statement matching beginning of present block."
+ (interactive "*")
+ (let ((f90-smart-end (or f90-smart-end 'blink)))
(insert "end")
(f90-indent-new-line)))
\f
-;; abbrevs and keywords
+;; Abbrevs and keywords.
(defun f90-abbrev-start ()
- "Typing `\\[help-command] or `? lists all the F90 abbrevs.
+ "Typing `\\[help-command] or `? lists all the F90 abbrevs.
Any other key combination is executed normally."
- (interactive)
- (let (c)
- (insert last-command-char)
- (if (or (eq (setq c (if (string-match "Lucid" emacs-version)
- (event-to-character (next-command-event))
- (read-event)))
- ??) ;insert char if not equal to `?'
- (eq c help-char))
+ (interactive "*")
+ (insert last-command-char)
+ (let (char event)
+ (if (fboundp 'next-command-event) ; XEmacs
+ (setq event (next-command-event)
+ char (event-to-character event))
+ (setq event (read-event)
+ char event))
+ ;; Insert char if not equal to `?', or if abbrev-mode is off.
+ (if (and abbrev-mode (or (eq char ??) (eq char help-char)))
(f90-abbrev-help)
- (if (string-match "Lucid" emacs-version)
- (setq unread-command-event c)
- (setq unread-command-events (list c))))))
+ (setq unread-command-events (list event)))))
(defun f90-abbrev-help ()
"List the currently defined abbrevs in F90 mode."
(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)
(defun f90-upcase-keywords ()
"Upcase all F90 keywords in the buffer."
- (interactive)
+ (interactive "*")
(f90-change-keywords 'upcase-word))
(defun f90-capitalize-keywords ()
"Capitalize all F90 keywords in the buffer."
- (interactive)
+ (interactive "*")
(f90-change-keywords 'capitalize-word))
(defun f90-downcase-keywords ()
"Downcase all F90 keywords in the buffer."
- (interactive)
+ (interactive "*")
(f90-change-keywords 'downcase-word))
(defun f90-upcase-region-keywords (beg end)
;; 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)))
- (let ((keyword-re
- (concat "\\<\\("
- (mapconcat 'identity f90-keywords "\\|") "\\|"
- (mapconcat 'identity f90-intrinsic-procedures"\\|") "\\|"
- (mapconcat 'identity f90-hpf-procedures "\\|") "\\|"
- (mapconcat 'identity f90-hpf-directives "\\|") "\\|"
- (mapconcat 'identity f90-hpf-keywords "\\|")
- "\\)\\>")) (ref-point (point-min)) state)
+ (setq beg (or beg (point-min))
+ end (or end (point-max)))
+ (let ((keyword-re
+ (concat "\\("
+ f90-keywords-re "\\|" f90-procedures-re "\\|"
+ f90-hpf-keywords-re "\\|" f90-operators-re "\\)"))
+ (ref-point (point-min))
+ (modified (buffer-modified-p))
+ state saveword back-point)
(goto-char beg)
- (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))
- (funcall change-word -1))))))
+ (unwind-protect
+ (while (re-search-forward keyword-re end t)
+ (unless (progn
+ (setq state (parse-partial-sexp ref-point (point)))
+ (or (nth 3 state) (nth 4 state)
+ ;; GM f90-directive-comment-re?
+ (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))
+ 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)
+;;; arch-tag: fceac97c-c147-44bd-aec0-172d4b560ef8
;;; f90.el ends here