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Diff for /gforth/gforth.el between versions 1.49 and 1.69

version 1.49, 2001/05/06 13:42:56 version 1.69, 2003/08/04 21:21:13
Line 1 Line 1
 ;;; gforth.el --- major mode for editing (G)Forth sources  ;;; gforth.el --- major mode for editing (G)Forth sources
   
 ;; Copyright (C) 1995,1996,1997,1998,2000 Free Software Foundation, Inc.  ;; Copyright (C) 1995,1996,1997,1998,2000,2001,2003 Free Software Foundation, Inc.
   
 ;; This file is part of Gforth.  ;; This file is part of Gforth.
   
Line 33 Line 33
 ;; Changes by David  ;; Changes by David
 ;; Added a syntax-hilighting engine, rewrote auto-indentation engine.  ;; Added a syntax-hilighting engine, rewrote auto-indentation engine.
 ;; Added support for block files.  ;; Added support for block files.
   ;; Replaced forth-process code with comint-based implementation.
   
   ;; Tested with Emacs 19.34, 20.5, 21 and XEmacs 21
     
 ;;-------------------------------------------------------------------  ;;-------------------------------------------------------------------
 ;; A Forth indentation, documentation search and interaction library  ;; A Forth indentation, documentation search and interaction library
Line 49 Line 52
   
 ;;; Code:  ;;; Code:
   
    ;(setq debug-on-error t)
   
   ;; Code ripped from `version.el' for compatability with Emacs versions
   ;; prior to 19.23.
   (if (not (boundp 'emacs-major-version))
       (defconst emacs-major-version
         (progn (string-match "^[0-9]+" emacs-version)
                (string-to-int (match-string 0 emacs-version)))))
   
   (defun forth-emacs-older (major minor)
     (or (< emacs-major-version major)
         (and (= emacs-major-version major) (< emacs-minor-version minor))))
   
   ;; Code ripped from `subr.el' for compatability with Emacs versions
   ;; prior to 20.1
   (eval-when-compile 
     (if (forth-emacs-older 20 1)
         (progn
           (defmacro when (cond &rest body)
             "If COND yields non-nil, do BODY, else return nil."
             (list 'if cond (cons 'progn body)))
           (defmacro unless (cond &rest body)
             "If COND yields nil, do BODY, else return nil."
             (cons 'if (cons cond (cons nil body)))))))
   
   ;; `no-error' argument of require not supported in Emacs versions
   ;; prior to 20.4 :-(
   (defun forth-require (feature)
     (condition-case err (require feature) (error nil)))
   
   (require 'font-lock)
   
   ;; define `font-lock-warning-face' in emacs-versions prior to 20.1
   ;; (ripped from `font-lock.el')
   (unless (boundp 'font-lock-warning-face)
     (message "defining font-lock-warning-face")
     (make-face 'font-lock-warning-face)
     (defvar font-lock-warning-face 'font-lock-warning-face)
     (set-face-foreground font-lock-warning-face "red")
     (make-face-bold font-lock-warning-face))
   
   ;; define `font-lock-constant-face' in XEmacs (just copy
   ;; `font-lock-preprocessor-face')
   (unless (boundp 'font-lock-constant-face)
     (copy-face font-lock-preprocessor-face 'font-lock-constant-face))
   
   
   ;; define `regexp-opt' in emacs versions prior to 20.1 
   ;; (this implementation is extremely inefficient, though)
   (eval-and-compile (forth-require 'regexp-opt))
   (unless (memq 'regexp-opt features)
     (message (concat 
               "Warning: your Emacs version doesn't support `regexp-opt'. "
               "Hilighting will be slow."))
     (defun regexp-opt (STRINGS &optional PAREN)
       (let ((open (if PAREN "\\(" "")) (close (if PAREN "\\)" "")))
         (concat open (mapconcat 'regexp-quote STRINGS "\\|") close)))
     (defun regexp-opt-depth (re)
       (if (string= (substring re 0 2) "\\(") 1 0)))
   
   ; todo:
   ;
   
 ;;; Hilighting and indentation engine                           (dk)  ; screen-height existiert nicht in XEmacs, frame-height ersetzen?
   ; 
   
   ; Wörter ordentlich hilighten, die nicht auf Whitespace beginnen ( ..)IF
   ; -- mit aktueller Konzeption nicht möglich??
   ;
   ; Konfiguration über customization groups
   ;
   ; Bereich nur auf Wortanfang/ende ausweiten, wenn Anfang bzw Ende in einem 
   ; Wort liegen (?) -- speed!
   ;
   ; 'forth-word' property muss eindeutig sein!
   ;
   ; Forth-Menu 
   ;
   ; Interface zu GForth Prozessen (Patches von Michael Scholz)
   ;
   ; Byte-compile-Code rausschmeißen, Compilieren im Makefile über Emacs
   ; batch-Modus
   ;
   ; forth-help Kram rausschmeißen
   ;
   ; XEmacs Kompatibilität? imenu/speedbar -> fume?
   ; 
   ; Folding neuschreiben (neue Parser-Informationen benutzen)
   
   ;;; Motion-hooking (dk)
   ;;;
   (defun forth-idle-function ()
     "Function that is called when Emacs is idle to detect cursor motion
   in forth-block-mode buffers (which is mainly used for screen number
   display in).  Currently ignores forth-mode buffers but that may change
   in the future."
     (if (eq major-mode 'forth-block-mode)
         (forth-check-motion)))
   
   (defvar forth-idle-function-timer nil 
     "Timer that runs `forth-idle-function' or nil if no timer installed.")
   
   (defun forth-install-motion-hook ()
     "Install the motion-hooking mechanism.  Currently uses idle timers
   but might be transparently changed in the future."
     (unless forth-idle-function-timer
       ;; install idle function only once (first time forth-mode is used)
       (setq forth-idle-function-timer 
             (run-with-idle-timer .05 t 'forth-idle-function))))
   
   (defvar forth-was-point nil)
   
   (defun forth-check-motion ()
     "Run `forth-motion-hooks', if `point' changed since last call.  This
   used to be called via `post-command-hook' but uses idle timers now as
   users complaint about lagging performance."
     (when (or (eq forth-was-point nil) (/= forth-was-point (point)))
       (setq forth-was-point (point))
       (run-hooks 'forth-motion-hooks)))
   
   
   ;;; Hilighting and indentation engine (dk)
 ;;;  ;;;
   (defvar forth-disable-parser nil
     "*Non-nil means to disable on-the-fly parsing of Forth-code.
   
   This will disable hilighting of forth-mode buffers and will decrease
   the smartness of the indentation engine. Only set it to non-nil, if
   your computer is very slow. To disable hilighting, set
   `forth-hilight-level' to zero.")
   
   (defvar forth-jit-parser nil
     "*Non-nil means to parse Forth-code just-in-time.
   
   This eliminates the need for initially parsing forth-mode buffers and
   thus speeds up loading of Forth files. That feature is only available
   in Emacs21 (and newer versions).")
   
 (defvar forth-words nil   (defvar forth-words nil 
   "List of words for hilighting and recognition of parsed text areas.     "List of words for hilighting and recognition of parsed text areas. 
 You can enable hilighting of object-oriented Forth code, by appending either  
 `forth-objects-words' or `forth-oof-words' to the list, depending on which  Hilighting of object-oriented Forth code is achieved, by appending either
 OOP package you're using. After `forth-words' changed, `forth-compile-words'   `forth-objects-words' or `forth-oof-words' to the list, depending on the values of `forth-use-objects' or `forth-use-oof'.
 must be called to make the changes take effect.  
   After `forth-words' changed, `forth-compile-words' must be called to
   make the changes take effect.
   
 Each item of `forth-words' has the form   Each item of `forth-words' has the form 
    (MATCHER TYPE HILIGHT . &optional PARSED-TEXT ...)     (MATCHER TYPE HILIGHT . &optional PARSED-TEXT ...)
Line 132  PARSED-TYPE specifies what kind of text Line 270  PARSED-TYPE specifies what kind of text
         (("[ifdef]" "[ifundef]") immediate (font-lock-keyword-face . 2)          (("[ifdef]" "[ifundef]") immediate (font-lock-keyword-face . 2)
          "[ \t\n]" t name (font-lock-function-name-face . 3))           "[ \t\n]" t name (font-lock-function-name-face . 3))
         (("if" "begin" "ahead" "do" "?do" "+do" "u+do" "-do" "u-do" "for"           (("if" "begin" "ahead" "do" "?do" "+do" "u+do" "-do" "u-do" "for" 
           "case" "of" "?dup-if" "?dup-0=-if" "then" "until" "repeat" "again"             "case" "of" "?dup-if" "?dup-0=-if" "then" "endif" "until"
             "repeat" "again" "leave" "?leave"
           "loop" "+loop" "-loop" "next" "endcase" "endof" "else" "while" "try"            "loop" "+loop" "-loop" "next" "endcase" "endof" "else" "while" "try"
           "recover" "endtry" "assert(" "assert0(" "assert1(" "assert2("             "recover" "endtry" "assert(" "assert0(" "assert1(" "assert2(" 
           "assert3(" ")" "<interpretation" "<compilation" "interpretation>"             "assert3(" ")" "<interpretation" "<compilation" "interpretation>" 
Line 141  PARSED-TYPE specifies what kind of text Line 280  PARSED-TYPE specifies what kind of text
   
         (("true" "false" "c/l" "bl" "cell" "pi" "w/o" "r/o" "r/w")           (("true" "false" "c/l" "bl" "cell" "pi" "w/o" "r/o" "r/w") 
          non-immediate (font-lock-constant-face . 2))           non-immediate (font-lock-constant-face . 2))
         (("~~") compile-only (font-lock-warning-face . 2))          (("~~" "break:" "dbg") compile-only (font-lock-warning-face . 2))
           (("break\"") compile-only (font-lock-warning-face . 1)
            "[\"\n]" nil string (font-lock-string-face . 1))
         (("postpone" "[is]" "defers" "[']" "[compile]")           (("postpone" "[is]" "defers" "[']" "[compile]") 
          compile-only (font-lock-keyword-face . 2)           compile-only (font-lock-keyword-face . 2)
          "[ \t\n]" t name (font-lock-function-name-face . 3))           "[ \t\n]" t name (font-lock-function-name-face . 3))
         (("is" "what's") immediate (font-lock-keyword-face . 2)          (("is" "what's") immediate (font-lock-keyword-face . 2)
          "[ \t\n]" t name (font-lock-function-name-face . 3))           "[ \t\n]" t name (font-lock-function-name-face . 3))
         (("<is>" "'") non-immediate (font-lock-keyword-face . 2)          (("<is>" "'" "see") non-immediate (font-lock-keyword-face . 2)
          "[ \t\n]" t name (font-lock-function-name-face . 3))           "[ \t\n]" t name (font-lock-function-name-face . 3))
         (("[to]") compile-only (font-lock-keyword-face . 2)          (("[to]") compile-only (font-lock-keyword-face . 2)
          "[ \t\n]" t name (font-lock-variable-name-face . 3))           "[ \t\n]" t name (font-lock-variable-name-face . 3))
Line 161  PARSED-TYPE specifies what kind of text Line 302  PARSED-TYPE specifies what kind of text
           "create-interpret/compile")            "create-interpret/compile")
          non-immediate (font-lock-type-face . 2)           non-immediate (font-lock-type-face . 2)
          "[ \t\n]" t name (font-lock-variable-name-face . 3))           "[ \t\n]" t name (font-lock-variable-name-face . 3))
           ("\\S-+%" non-immediate (font-lock-type-face . 2))
         (("defer" "alias" "create-interpret/compile:")           (("defer" "alias" "create-interpret/compile:") 
          non-immediate (font-lock-type-face . 1)           non-immediate (font-lock-type-face . 1)
          "[ \t\n]" t name (font-lock-function-name-face . 3))           "[ \t\n]" t name (font-lock-function-name-face . 3))
Line 171  PARSED-TYPE specifies what kind of text Line 313  PARSED-TYPE specifies what kind of text
          immediate (font-lock-constant-face . 3))           immediate (font-lock-constant-face . 3))
         ))          ))
   
 (defvar forth-objects-words nil  (defvar forth-use-objects nil 
   "Hilighting description for words of the \"Objects\" OOP package")    "*Non-nil makes forth-mode also hilight words from the \"Objects\" package.")
 (setq forth-objects-words   (defvar forth-objects-words
       '(((":m") definition-starter (font-lock-keyword-face . 1)    '(((":m") definition-starter (font-lock-keyword-face . 1)
          "[ \t\n]" t name (font-lock-function-name-face . 3))       "[ \t\n]" t name (font-lock-function-name-face . 3))
         (("m:") definition-starter (font-lock-keyword-face . 1))      (("m:") definition-starter (font-lock-keyword-face . 1))
         ((";m") definition-ender (font-lock-keyword-face . 1))      ((";m") definition-ender (font-lock-keyword-face . 1))
         (("[current]" "[parent]") compile-only (font-lock-keyword-face . 1)      (("[current]" "[parent]") compile-only (font-lock-keyword-face . 1)
          "[ \t\n]" t name (font-lock-function-name-face . 3))       "[ \t\n]" t name (font-lock-function-name-face . 3))
         (("current" "overrides") non-immediate (font-lock-keyword-face . 2)      (("current" "overrides") non-immediate (font-lock-keyword-face . 2)
          "[ \t\n]" t name (font-lock-function-name-face . 3))       "[ \t\n]" t name (font-lock-function-name-face . 3))
         (("[to-inst]") compile-only (font-lock-keyword-face . 2)      (("[to-inst]") compile-only (font-lock-keyword-face . 2)
          "[ \t\n]" t name (font-lock-variable-name-face . 3))       "[ \t\n]" t name (font-lock-variable-name-face . 3))
         (("[bind]") compile-only (font-lock-keyword-face . 2)      (("[bind]") compile-only (font-lock-keyword-face . 2)
          "[ \t\n]" t name (font-lock-type-face . 3)       "[ \t\n]" t name (font-lock-type-face . 3)
          "[ \t\n]" t name (font-lock-function-name-face . 3))       "[ \t\n]" t name (font-lock-function-name-face . 3))
         (("bind") non-immediate (font-lock-keyword-face . 2)      (("bind") non-immediate (font-lock-keyword-face . 2)
          "[ \t\n]" t name (font-lock-type-face . 3)       "[ \t\n]" t name (font-lock-type-face . 3)
          "[ \t\n]" t name (font-lock-function-name-face . 3))       "[ \t\n]" t name (font-lock-function-name-face . 3))
         (("inst-var" "inst-value") non-immediate (font-lock-type-face . 2)      (("inst-var" "inst-value") non-immediate (font-lock-type-face . 2)
          "[ \t\n]" t name (font-lock-variable-name-face . 3))       "[ \t\n]" t name (font-lock-variable-name-face . 3))
         (("method" "selector")      (("method" "selector")
          non-immediate (font-lock-type-face . 1)       non-immediate (font-lock-type-face . 1)
          "[ \t\n]" t name (font-lock-function-name-face . 3))       "[ \t\n]" t name (font-lock-function-name-face . 3))
         (("end-class" "end-interface")      (("end-class" "end-interface")
          non-immediate (font-lock-keyword-face . 2)       non-immediate (font-lock-keyword-face . 2)
          "[ \t\n]" t name (font-lock-type-face . 3))       "[ \t\n]" t name (font-lock-type-face . 3))
         (("public" "protected" "class" "exitm" "implementation" "interface"      (("public" "protected" "class" "exitm" "implementation" "interface"
           "methods" "end-methods" "this")         "methods" "end-methods" "this") 
          non-immediate (font-lock-keyword-face . 2))       non-immediate (font-lock-keyword-face . 2))
         (("object") non-immediate (font-lock-type-face . 2))))      (("object") non-immediate (font-lock-type-face . 2)))
 ; (nconc forth-words forth-objects-words)    "Hilighting description for words of the \"Objects\" package")
   
 (defvar forth-oof-words nil  
   "Hilighting description for words of the \"OOF\" OOP package")  (defvar forth-use-oof nil 
 (setq forth-oof-words     "*Non-nil makes forth-mode also hilight words from the \"OOF\" package.")
       '((("class") non-immediate (font-lock-keyword-face . 2)  (defvar forth-oof-words 
          "[ \t\n]" t name (font-lock-type-face . 3))    '((("class") non-immediate (font-lock-keyword-face . 2)
         (("var") non-immediate (font-lock-type-face . 2)       "[ \t\n]" t name (font-lock-type-face . 3))
          "[ \t\n]" t name (font-lock-variable-name-face . 3))      (("var") non-immediate (font-lock-type-face . 2)
         (("method") non-immediate (font-lock-type-face . 2)       "[ \t\n]" t name (font-lock-variable-name-face . 3))
          "[ \t\n]" t name (font-lock-function-name-face . 3))      (("method" "early") non-immediate (font-lock-type-face . 2)
         (("::" "super" "bind" "bound" "link")        "[ \t\n]" t name (font-lock-function-name-face . 3))
          immediate (font-lock-keyword-face . 2)      (("::" "super" "bind" "bound" "link") 
          "[ \t\n]" t name (font-lock-function-name-face . 3))       immediate (font-lock-keyword-face . 2)
         (("ptr" "asptr" "[]")        "[ \t\n]" t name (font-lock-function-name-face . 3))
          immediate (font-lock-keyword-face . 2)      (("ptr" "asptr" "[]") 
          "[ \t\n]" t name (font-lock-variable-name-face . 3))       immediate (font-lock-keyword-face . 2)
         (("class;" "how:" "self" "new" "new[]" "definitions" "class?" "with"       "[ \t\n]" t name (font-lock-variable-name-face . 3))
           "endwith")      (("class;" "how:" "self" "new" "new[]" "definitions" "class?" "with"
          non-immediate (font-lock-keyword-face . 2))        "endwith")
         (("object") non-immediate (font-lock-type-face . 2))))       non-immediate (font-lock-keyword-face . 2))
 ; (nconc forth-words forth-oof-words)      (("object") non-immediate (font-lock-type-face . 2)))
     "Hilighting description for words of the \"OOF\" package")
   
 (defvar forth-local-words nil   (defvar forth-local-words nil 
   "List of Forth words to prepend to `forth-words'. Should be set by a     "List of Forth words to prepend to `forth-words'. Should be set by a 
 forth source, using a local variables list at the end of the file    forth source, using a local variables list at the end of the file 
 (\"Local Variables: ... forth-local-words: ... End:\" construct).")   (\"Local Variables: ... forth-local-words: ... End:\" construct).") 
   
   (defvar forth-custom-words nil
     "List of Forth words to prepend to `forth-words'. Should be set in your
    .emacs.")
   
 (defvar forth-hilight-level 3 "*Level of hilighting of Forth code.")  (defvar forth-hilight-level 3 "*Level of hilighting of Forth code.")
   
 (defvar forth-compiled-words nil "Compiled representation of `forth-words'.")  (defvar forth-compiled-words nil "Compiled representation of `forth-words'.")
   
 ; todo:  (defvar forth-indent-words nil 
 ;    "List of words that have indentation behaviour.
   Each element of `forth-indent-words' should have the form
      (MATCHER INDENT1 INDENT2 &optional TYPE) 
     
   MATCHER is either a list of strings to match, or a REGEXP.
      If it's a REGEXP, it should not be surrounded by `\\<` or `\\>`, since 
      that'll be done automatically by the search routines.
   
 ; Wörter ordentlich hilighten, die nicht auf whitespace beginning ( ..)IF  TYPE might be omitted. If it's specified, the only allowed value is 
 ; Additional `forth-use-objects' or     currently the symbol `non-immediate', meaning that the word will not 
 ; `forth-use-oof' could be set to non-nil for automatical adding of those     have any effect on indentation inside definitions. (:NONAME is a good 
 ; word-lists. Using local variable list?     example for this kind of word).
 ;  
 ; Anzeige von Screen-Nummern in Status-Zeile (S???)  INDENT1 specifies how to indent a word that's located at the beginning
 ;     of a line, following any number of whitespaces.
 ; Konfiguration über customization groups  
 ;  
 ; Bereich nur auf Wortanfang/ende ausweiten, wenn anfang bzw ende in einem   
 ; Wort liegen (?) -- speed!  
 ;  
 ; User interface  
 ;  
 ; 'forth-word' property muss eindeutig sein!  
   
 (setq debug-on-error t)  INDENT2 specifies how to indent words that are not located at the
      beginning of a line.
   
 ;; Filter list by predicat. This is a somewhat standard function for   INDENT1 and INDENT2 are indentation specifications of the form
      (SELF-INDENT . NEXT-INDENT), where SELF-INDENT is a numerical value, 
      specifying how the matching line and all following lines are to be 
      indented, relative to previous lines. NEXT-INDENT specifies how to indent 
      following lines, relative to the matching line.
     
      Even values of SELF-INDENT and NEXT-INDENT correspond to multiples of
      `forth-indent-level'. Odd values get an additional 
      `forth-minor-indent-level' added/substracted. Eg a value of -2 indents
      1 * forth-indent-level  to the left, wheras 3 indents 
      1 * forth-indent-level + forth-minor-indent-level  columns to the right.")
   
   (setq forth-indent-words
         '((("if" "begin" "do" "?do" "+do" "-do" "u+do"
             "u-do" "?dup-if" "?dup-0=-if" "case" "of" "try" 
             "[if]" "[ifdef]" "[ifundef]" "[begin]" "[for]" "[do]" "[?do]")
            (0 . 2) (0 . 2))
           ((":" ":noname" "code" "struct" "m:" ":m" "class" "interface")
            (0 . 2) (0 . 2) non-immediate)
           ("\\S-+%$" (0 . 2) (0 . 0) non-immediate)
           ((";" ";m") (-2 . 0) (0 . -2))
           (("again" "then" "endif" "endtry" "endcase" "endof" 
             "[then]" "[endif]" "[loop]" "[+loop]" "[next]" 
             "[until]" "[again]" "loop")
            (-2 . 0) (0 . -2))
           (("end-code" "end-class" "end-interface" "end-class-noname" 
             "end-interface-noname" "end-struct" "class;")
            (-2 . 0) (0 . -2) non-immediate)
           (("protected" "public" "how:") (-1 . 1) (0 . 0) non-immediate)
           (("+loop" "-loop" "until") (-2 . 0) (-2 . 0))
           (("else" "recover" "[else]") (-2 . 2) (0 . 0))
           (("does>") (-1 . 1) (0 . 0))
           (("while" "[while]") (-2 . 4) (0 . 2))
           (("repeat" "[repeat]") (-4 . 0) (0 . -4))
           (("\\g") (-2 . 2) (0 . 0))))
   
   (defvar forth-local-indent-words nil 
     "List of Forth words to prepend to `forth-indent-words', when a forth-mode
   buffer is created. Should be set by a Forth source, using a local variables 
   list at the end of the file (\"Local Variables: ... forth-local-words: ... 
   End:\" construct).")
   
   (defvar forth-custom-indent-words nil
     "List of Forth words to prepend to `forth-indent-words'. Should be set in
    your .emacs.")
   
   (defvar forth-indent-level 4
     "*Indentation of Forth statements.")
   (defvar forth-minor-indent-level 2
     "*Minor indentation of Forth statements.")
   (defvar forth-compiled-indent-words nil)
   
   ;(setq debug-on-error t)
   
   ;; Filter list by predicate. This is a somewhat standard function for 
 ;; functional programming languages. So why isn't it already implemented   ;; functional programming languages. So why isn't it already implemented 
 ;; in Lisp??  ;; in Lisp??
 (defun forth-filter (predicat list)  (defun forth-filter (predicate list)
   (let ((filtered nil))    (let ((filtered nil))
     (mapcar (lambda (item)      (mapcar (lambda (item)
               (when (funcall predicat item)                (when (funcall predicate item)
                 (if filtered                  (if filtered
                     (nconc filtered (list item))                      (nconc filtered (list item))
                   (setq filtered (cons item nil))))                    (setq filtered (cons item nil))))
Line 279  forth source, using a local variables li Line 480  forth source, using a local variables li
 ;; Helper function for `forth-compile-word': translate one entry from   ;; Helper function for `forth-compile-word': translate one entry from 
 ;; `forth-words' into the form  (regexp regexp-depth word-description)  ;; `forth-words' into the form  (regexp regexp-depth word-description)
 (defun forth-compile-words-mapper (word)  (defun forth-compile-words-mapper (word)
     ;; warning: we cannot rely on regexp-opt's PAREN argument, since
     ;; XEmacs will use shy parens by default :-(
   (let* ((matcher (car word))    (let* ((matcher (car word))
          (regexp (if (stringp matcher) (concat "\\(" matcher "\\)")           (regexp 
                    (if (listp matcher) (regexp-opt matcher t)            (concat "\\(" (cond ((stringp matcher) matcher)
                      (error "Invalid matcher (stringp or listp expected `%s'"                                 ((listp matcher) (regexp-opt matcher))
                             matcher))))                                (t (error "Invalid matcher `%s'")))
                     "\\)"))
          (depth (regexp-opt-depth regexp))           (depth (regexp-opt-depth regexp))
          (description (cdr word)))           (description (cdr word)))
     (list regexp depth description)))      (list regexp depth description)))
Line 312  forth source, using a local variables li Line 516  forth source, using a local variables li
 (defun forth-compile-words ()  (defun forth-compile-words ()
   "Compile the the words from `forth-words' and `forth-indent-words' into    "Compile the the words from `forth-words' and `forth-indent-words' into
  the format that's later used for doing the actual hilighting/indentation.   the format that's later used for doing the actual hilighting/indentation.
 Store the resulting compiled wordlists in `forth-compiled-words' and    Store the resulting compiled wordlists in `forth-compiled-words' and 
 `forth-compiled-indent-words', respective"  `forth-compiled-indent-words', respective"
   (setq forth-compiled-words     (setq forth-compiled-words 
         (forth-compile-wordlist           (forth-compile-wordlist 
Line 321  Store the resulting compiled wordlists i Line 525  Store the resulting compiled wordlists i
         (forth-compile-wordlist forth-indent-words)))          (forth-compile-wordlist forth-indent-words)))
   
 (defun forth-hack-local-variables ()  (defun forth-hack-local-variables ()
   "Parse and bind local variables, set in the contens of the current     "Parse and bind local variables, set in the contents of the current 
 forth-mode buffer. Prepend `forth-local-words' to `forth-words' and    forth-mode buffer. Prepend `forth-local-words' to `forth-words' and 
 `forth-local-indent-words' to `forth-local-words'."   `forth-local-indent-words' to `forth-indent-words'."
   (hack-local-variables)    (hack-local-variables)
   (setq forth-words (append forth-local-words forth-words))    (setq forth-words (append forth-local-words forth-words))
   (setq forth-indent-words (append forth-local-indent-words     (setq forth-indent-words (append forth-local-indent-words 
                                    forth-indent-words)))                                     forth-indent-words)))
   
   (defun forth-customize-words ()
     "Add the words from `forth-custom-words' and `forth-custom-indent-words'
    to `forth-words' and `forth-indent-words', respective. Add 
    `forth-objects-words' and/or `forth-oof-words' to `forth-words', if
    `forth-use-objects' and/or `forth-use-oof', respective is set."
     (setq forth-words (append forth-custom-words forth-words
                               (if forth-use-oof forth-oof-words nil)
                               (if forth-use-objects forth-objects-words nil)))
     (setq forth-indent-words (append 
                               forth-custom-indent-words forth-indent-words)))
   
   
   
 ;; get location of first character of previous forth word that's got   ;; get location of first character of previous forth word that's got 
 ;; properties  ;; properties
 (defun forth-previous-start (pos)  (defun forth-previous-start (pos)
Line 369  forth-mode buffer. Prepend `forth-local- Line 586  forth-mode buffer. Prepend `forth-local-
 ;; Delete all properties, used by Forth mode, from `from' to `to'.  ;; Delete all properties, used by Forth mode, from `from' to `to'.
 (defun forth-delete-properties (from to)  (defun forth-delete-properties (from to)
   (remove-text-properties     (remove-text-properties 
    from to '(face nil forth-parsed nil forth-word nil forth-state nil)))     from to '(face nil fontified nil 
                     forth-parsed nil forth-word nil forth-state nil)))
   
 ;; Get the index of the branch of the most recently evaluated regular   ;; Get the index of the branch of the most recently evaluated regular 
 ;; expression that matched. (used for identifying branches "a\\|b\\|c...")  ;; expression that matched. (used for identifying branches "a\\|b\\|c...")
 (defun forth-get-regexp-branch ()  (defun forth-get-regexp-branch ()
   (let ((count 2))    (let ((count 2))
     (while (not (match-beginning count))      (while (not (condition-case err (match-beginning count)
                     (args-out-of-range t)))  ; XEmacs requires error handling
       (setq count (1+ count)))        (setq count (1+ count)))
     count))      count))
   
Line 437  forth-mode buffer. Prepend `forth-local- Line 656  forth-mode buffer. Prepend `forth-local-
 ;; Search for known Forth words in the range `from' to `to', using   ;; Search for known Forth words in the range `from' to `to', using 
 ;; `forth-next-known-forth-word' and set their properties via   ;; `forth-next-known-forth-word' and set their properties via 
 ;; `forth-set-word-properties'.  ;; `forth-set-word-properties'.
 (defun forth-update-properties (from to)  (defun forth-update-properties (from to &optional loudly)
   (save-excursion    (save-excursion
     (let ((msg-flag nil) (state) (word-descr) (last-location))      (let ((msg-count 0) (state) (word-descr) (last-location))
       (when (> to (+ from 5000))  
         (setq msg-flag t) (message "Parsing Forth code..."))  
       (goto-char (forth-previous-word (forth-previous-start         (goto-char (forth-previous-word (forth-previous-start 
                                        (max (point-min) (1- from)))))                                         (max (point-min) (1- from)))))
       (setq to (forth-next-end (min (point-max) (1+ to))))        (setq to (forth-next-end (min (point-max) (1+ to))))
Line 450  forth-mode buffer. Prepend `forth-local- Line 667  forth-mode buffer. Prepend `forth-local-
       (setq state (get-text-property (point) 'forth-state))        (setq state (get-text-property (point) 'forth-state))
       (setq last-location (point))        (setq last-location (point))
       (forth-delete-properties (point) to)        (forth-delete-properties (point) to)
         (put-text-property (point) to 'fontified t)
       ;; hilight loop...        ;; hilight loop...
       (while (setq word-descr (forth-next-known-forth-word to))        (while (setq word-descr (forth-next-known-forth-word to))
           (when loudly
             (when (equal 0 (% msg-count 100))
               (message "Parsing Forth code...%s"
                        (make-string (/ msg-count 100) ?.)))
             (setq msg-count (1+ msg-count)))
         (forth-set-word-properties state word-descr)          (forth-set-word-properties state word-descr)
         (when state (put-text-property last-location (point) 'forth-state t))          (when state (put-text-property last-location (point) 'forth-state t))
         (let ((type (car word-descr)))          (let ((type (car word-descr)))
Line 468  forth-mode buffer. Prepend `forth-local- Line 691  forth-mode buffer. Prepend `forth-local-
                                 to 'forth-state (current-buffer) (point-max))))                                  to 'forth-state (current-buffer) (point-max))))
                 (forth-update-properties to extend-to))                  (forth-update-properties to extend-to))
             ))              ))
       (when msg-flag (message "Parsing Forth code...done"))  
       )))        )))
   
 ;; save-buffer-state borrowed from `font-lock.el'  ;; save-buffer-state borrowed from `font-lock.el'
Line 487  forth-mode buffer. Prepend `forth-local- Line 709  forth-mode buffer. Prepend `forth-local-
 ;; Function that is added to the `change-functions' hook. Calls   ;; Function that is added to the `change-functions' hook. Calls 
 ;; `forth-update-properties' and keeps care of disabling undo information  ;; `forth-update-properties' and keeps care of disabling undo information
 ;; and stuff like that.  ;; and stuff like that.
 (defun forth-change-function (from to len)  (defun forth-change-function (from to len &optional loudly)
   (save-match-data    (save-match-data
     (forth-save-buffer-state ()       (forth-save-buffer-state 
      (unwind-protect        () 
          (progn        (unless forth-disable-parser (forth-update-properties from to loudly))
            (forth-update-properties from to)       (forth-update-warn-long-lines))))
            (forth-update-show-screen)  
            (forth-update-warn-long-lines))))))  (defun forth-fontification-function (from)
     "Function to be called from `fontification-functions' of Emacs 21."
     (save-match-data
       (forth-save-buffer-state
        ((to (min (point-max) (+ from 100))))
        (unless (or forth-disable-parser (not forth-jit-parser)
                    (get-text-property from 'fontified))
          (forth-update-properties from to)))))
   
 (eval-when-compile  (eval-when-compile
   (byte-compile 'forth-set-word-properties)    (byte-compile 'forth-set-word-properties)
Line 503  forth-mode buffer. Prepend `forth-local- Line 732  forth-mode buffer. Prepend `forth-local-
   (byte-compile 'forth-delete-properties)    (byte-compile 'forth-delete-properties)
   (byte-compile 'forth-get-regexp-branch))     (byte-compile 'forth-get-regexp-branch)) 
   
   ;;; imenu support
   ;;;
   (defvar forth-defining-words 
     '("VARIABLE" "CONSTANT" "2VARIABLE" "2CONSTANT" "FVARIABLE" "FCONSTANT"
      "USER" "VALUE" "field" "end-struct" "VOCABULARY" "CREATE" ":" "CODE"
      "DEFER" "ALIAS")
     "List of words, that define the following word.
   Used for imenu index generation.")
   
   (defvar forth-defining-words-regexp nil 
     "Regexp that's generated for matching `forth-defining-words'")
    
   (defun forth-next-definition-starter ()
     (progn
       (let* ((pos (re-search-forward forth-defining-words-regexp (point-max) t)))
         (if pos
             (if (or (text-property-not-all (match-beginning 0) (match-end 0) 
                                            'forth-parsed nil)
                     (text-property-not-all (match-beginning 0) (match-end 0)
                                            'forth-state nil)) 
                 (forth-next-definition-starter)
               t)
           nil))))
   
   (defun forth-create-index ()
     (let* ((forth-defining-words-regexp 
             (concat "\\<\\(" (regexp-opt forth-defining-words) "\\)\\>"))
            (index nil))
       (goto-char (point-min))
       (while (forth-next-definition-starter)
         (if (looking-at "[ \t]*\\([^ \t\n]+\\)")
             (setq index (cons (cons (match-string 1) (point)) index))))
       index))
   
   ;; top-level require is executed at byte-compile and load time
   (eval-and-compile (forth-require 'speedbar))
   
   ;; this code is executed at load-time only
   (when (memq 'speedbar features)
     (speedbar-add-supported-extension ".fs")
     (speedbar-add-supported-extension ".fb"))
   
 ;; (require 'profile)  ;; (require 'profile)
 ;; (setq profile-functions-list '(forth-set-word-properties forth-next-known-forth-word forth-update-properties forth-delete-properties forth-get-regexp-branch))  ;; (setq profile-functions-list '(forth-set-word-properties forth-next-known-forth-word forth-update-properties forth-delete-properties forth-get-regexp-branch))
   
 ;;; Indentation  ;;; Indentation
 ;;;  ;;;
   
 (defvar forth-indent-words nil   
   "List of words that have indentation behaviour.  
 Each element of `forth-indent-words' should have the form  
    (MATCHER INDENT1 INDENT2)   
     
 MATCHER is either a list of strings to match, or a REGEXP.  
    If it's a REGEXP, it should not be surrounded by `\\<` or `\\>`, since   
    that'll be done automatically by the search routines.  
   
 INDENT1 specifies how to indent a word that's located at a line's begin,  
    following any number of whitespaces.  
   
 INDENT2 specifies how to indent words that are not located at a line's begin.  
   
 INDENT1 and INDENT2 are indentation specifications of the form  
    (SELF-INDENT . NEXT-INDENT), where SELF-INDENT is a numerical value,   
    specifying how the matching line and all following lines are to be   
    indented, relative to previous lines. NEXT-INDENT specifies how to indent   
    following lines, relative to the matching line.  
     
    Even values of SELF-INDENT and NEXT-INDENT correspond to multiples of  
    `forth-indent-level'. Odd values get an additional   
    `forth-minor-indent-level' added/substracted. Eg a value of -2 indents  
    1 * forth-indent-level  to the left, wheras 3 indents   
    1 * forth-indent-level + forth-minor-indent-level  columns to the right.")  
   
 (setq forth-indent-words  
       '(((":" ":noname" "code" "if" "begin" "do" "?do" "+do" "-do" "u+do"  
           "u-do" "?dup-if" "?dup-0=-if" "case" "of" "try" "struct"   
           "[if]" "[ifdef]" "[ifundef]" "[begin]" "[for]" "[do]" "[?do]"  
           "class" "interface" "m:" ":m")  
          (0 . 2) (0 . 2))  
         ((";" ";m") (-2 . 0) (0 . -2))  
         (("end-code" "again" "repeat" "then" "endtry" "endcase" "endof"   
           "end-struct" "[then]" "[endif]" "[loop]" "[+loop]" "[next]"   
           "[until]" "[repeat]" "[again]" "end-class" "end-interface"  
           "end-class-noname" "end-interface-noname" "loop"  
           "class;")  
          (-2 . 0) (0 . -2))  
         (("protected" "public" "how:") (-1 . 1) (0 . 0))  
         (("+loop" "-loop" "until") (-2 . 0) (-2 . 0))  
         (("else" "recover" "[else]") (-2 . 2) (0 . 0))  
         (("while" "does>" "[while]") (-1 . 1) (0 . 0))  
         (("\\g") (-2 . 2) (0 . 0))))  
   
 (defvar forth-local-indent-words nil   
   "List of Forth words to prepend to `forth-indent-words', when a forth-mode  
 buffer is created. Should be set by a Forth source, using a local variables   
 list at the end of the file (\"Local Variables: ... forth-local-words: ...   
 End:\" construct).")  
   
 (defvar forth-indent-level 4  
   "Indentation of Forth statements.")  
 (defvar forth-minor-indent-level 2  
   "Minor indentation of Forth statements.")  
 (defvar forth-compiled-indent-words nil)  
   
 ;; Return, whether `pos' is the first forth word on its line  ;; Return, whether `pos' is the first forth word on its line
 (defun forth-first-word-on-line-p (pos)  (defun forth-first-word-on-line-p (pos)
   (save-excursion    (save-excursion
Line 583  End:\" construct).") Line 797  End:\" construct).")
         (let* ((regexp (car forth-compiled-indent-words))          (let* ((regexp (car forth-compiled-indent-words))
                (pos (re-search-forward regexp to t)))                 (pos (re-search-forward regexp to t)))
           (if pos            (if pos
               (if (text-property-not-all (match-beginning 0) (match-end 0)                 (let* ((start (match-beginning 0))
                                          'forth-parsed nil)                       (end (match-end 0))
                   (forth-next-known-indent-word to)                       (branch (forth-get-regexp-branch))
                 (let* ((branch (forth-get-regexp-branch))                       (descr (cdr forth-compiled-indent-words))
                        (descr (cdr forth-compiled-indent-words))                       (indent (cdr (assoc branch descr)))
                        (indent (cdr (assoc branch descr))))                       (type (nth 2 indent)))
                   ;; skip words that are parsed (strings/comments) and 
                   ;; non-immediate words inside definitions
                   (if (or (text-property-not-all start end 'forth-parsed nil)
                           (and (eq type 'non-immediate) 
                                (text-property-not-all start end 
                                                       'forth-state nil)))
                       (forth-next-known-indent-word to)
                   (if (forth-first-word-on-line-p (match-beginning 0))                    (if (forth-first-word-on-line-p (match-beginning 0))
                       (nth 0 indent) (nth 1 indent))))                        (nth 0 indent) (nth 1 indent))))
             nil)))              nil)))
Line 636  End:\" construct).") Line 857  End:\" construct).")
 (defun forth-get-anchor-column ()  (defun forth-get-anchor-column ()
   (save-excursion    (save-excursion
     (if (/= 0 (forward-line -1)) 0      (if (/= 0 (forward-line -1)) 0
       (let ((next-indent)        (let ((indent))
             (self-indent))  
         (while (not (or (setq indent (forth-get-column-incr 1))          (while (not (or (setq indent (forth-get-column-incr 1))
                         (<= (point) (point-min))))                          (<= (point) (point-min))))
           (forward-line -1))            (forward-line -1))
Line 696  End:\" construct).") Line 916  End:\" construct).")
   (forth-newline-remove-trailing)    (forth-newline-remove-trailing)
   (indent-according-to-mode))    (indent-according-to-mode))
   
 ;;; end hilighting/indentation  
   
 ;;; Block file encoding/decoding  (dk)  ;;; Block file encoding/decoding  (dk)
 ;;;  ;;;
Line 800  done by checking whether the first line Line 1019  done by checking whether the first line
   (save-restriction     (save-restriction 
     (widen)      (widen)
     (save-excursion      (save-excursion
        (beginning-of-buffer)         (goto-char (point-min))
        (end-of-line)         (end-of-line)
        (>= (current-column) 1024))))         (>= (current-column) 1024))))
   
Line 824  done by checking whether the first line Line 1043  done by checking whether the first line
   "Non-nil means to warn about lines that are longer than 64 characters")    "Non-nil means to warn about lines that are longer than 64 characters")
   
 (defvar forth-screen-marker nil)  (defvar forth-screen-marker nil)
   (defvar forth-screen-number-string nil)
   
 (defun forth-update-show-screen ()  (defun forth-update-show-screen ()
   "If `forth-show-screen' is non-nil, put overlay arrow to start of screen,     "If `forth-show-screen' is non-nil, put overlay arrow to start of screen, 
Line 838  screen number." Line 1058  screen number."
         (setq overlay-arrow-string forth-overlay-arrow-string)          (setq overlay-arrow-string forth-overlay-arrow-string)
         (goto-line first-line)          (goto-line first-line)
         (setq overlay-arrow-position forth-screen-marker)          (setq overlay-arrow-position forth-screen-marker)
         (when (/= forth-screen-marker (point))          (set-marker forth-screen-marker 
           (message "Entered screen #%i" scr)                      (save-excursion (goto-line first-line) (point)))
           (set-marker forth-screen-marker (point)))))))          (setq forth-screen-number-string (format "%d" scr))))))
   
 (add-hook 'forth-motion-hooks 'forth-update-show-screen)  (add-hook 'forth-motion-hooks 'forth-update-show-screen)
   
Line 853  exceeds 64 characters." Line 1073  exceeds 64 characters."
                forth-c/l))))                 forth-c/l))))
   
 (add-hook 'forth-motion-hooks 'forth-update-warn-long-lines)  (add-hook 'forth-motion-hooks 'forth-update-warn-long-lines)
       
 ;;; End block file editing  ;;; End block file editing
   
   
Line 871  exceeds 64 characters." Line 1091  exceeds 64 characters."
 ;(define-key forth-mode-map "\M-\C-x" 'compile)  ;(define-key forth-mode-map "\M-\C-x" 'compile)
 (define-key forth-mode-map "\C-x\\" 'comment-region)  (define-key forth-mode-map "\C-x\\" 'comment-region)
 (define-key forth-mode-map "\C-x~" 'forth-remove-tracers)  (define-key forth-mode-map "\C-x~" 'forth-remove-tracers)
 (define-key forth-mode-map "\e\C-m" 'forth-send-paragraph)  
 (define-key forth-mode-map "\eo" 'forth-send-buffer)  
 (define-key forth-mode-map "\C-x\C-m" 'forth-split)  (define-key forth-mode-map "\C-x\C-m" 'forth-split)
 (define-key forth-mode-map "\e " 'forth-reload)  (define-key forth-mode-map "\e " 'forth-reload)
 (define-key forth-mode-map "\t" 'forth-indent-command)  (define-key forth-mode-map "\t" 'forth-indent-command)
Line 880  exceeds 64 characters." Line 1098  exceeds 64 characters."
 (define-key forth-mode-map "\M-q" 'forth-fill-paragraph)  (define-key forth-mode-map "\M-q" 'forth-fill-paragraph)
 (define-key forth-mode-map "\e." 'forth-find-tag)  (define-key forth-mode-map "\e." 'forth-find-tag)
   
 ;;; hook into motion events (realy ugly!)  (dk)  ;; setup for C-h C-i to work
 (define-key forth-mode-map "\C-n" 'forth-next-line)  (eval-and-compile (forth-require 'info-look))
 (define-key forth-mode-map "\C-p" 'forth-previous-line)  (when (memq 'info-look features)
 (define-key forth-mode-map [down] 'forth-next-line)    (defvar forth-info-lookup '(symbol (forth-mode "\\S-+" t 
 (define-key forth-mode-map [up] 'forth-previous-line)                                                    (("(gforth)Word Index"))
 (define-key forth-mode-map "\C-f" 'forth-forward-char)                                                    "\\S-+")))
 (define-key forth-mode-map "\C-b" 'forth-backward-char)    (unless (memq forth-info-lookup info-lookup-alist)
 (define-key forth-mode-map [right] 'forth-forward-char)      (setq info-lookup-alist (cons forth-info-lookup info-lookup-alist)))
 (define-key forth-mode-map [left] 'forth-backward-char)    ;; in X-Emacs C-h C-i is by default bound to Info-query
 (define-key forth-mode-map "\M-f" 'forth-forward-word)    (define-key forth-mode-map [?\C-h ?\C-i] 'info-lookup-symbol))
 (define-key forth-mode-map "\M-b" 'forth-backward-word)  
 (define-key forth-mode-map [C-right] 'forth-forward-word)  ;;   (info-lookup-add-help
 (define-key forth-mode-map [C-left] 'forth-backward-word)  ;;    :topic 'symbol
 (define-key forth-mode-map "\M-v" 'forth-scroll-down)  ;;    :mode 'forth-mode
 (define-key forth-mode-map "\C-v" 'forth-scroll-up)  ;;    :regexp "[^       
 (define-key forth-mode-map [prior] 'forth-scroll-down)  ;; ]+"
 (define-key forth-mode-map [next] 'forth-scroll-up)  ;;    :ignore-case t
   ;;    :doc-spec '(("(gforth)Name Index" nil "`" "'  "))))
 (defun forth-next-line (arg)   
   (interactive "p") (next-line arg) (run-hooks 'forth-motion-hooks))  
 (defun forth-previous-line (arg)  
   (interactive "p") (previous-line arg) (run-hooks 'forth-motion-hooks))  
 (defun forth-backward-char (arg)  
   (interactive "p") (backward-char arg) (run-hooks 'forth-motion-hooks))  
 (defun forth-forward-char (arg)  
   (interactive "p") (forward-char arg) (run-hooks 'forth-motion-hooks))  
 (defun forth-forward-word (arg)  
   (interactive "p") (forward-word arg) (run-hooks 'forth-motion-hooks))  
 (defun forth-backward-word (arg)  
   (interactive "p") (backward-word arg) (run-hooks 'forth-motion-hooks))  
 (defun forth-scroll-down (arg)  
   (interactive "P") (scroll-down arg) (run-hooks 'forth-motion-hooks))  
 (defun forth-scroll-up (arg)  
   (interactive "P") (scroll-up arg) (run-hooks 'forth-motion-hooks))  
   
 ;setup for C-h C-i to work  
 (if (fboundp 'info-lookup-add-help)  
     (info-lookup-add-help  
      :topic 'symbol  
      :mode 'forth-mode  
      :regexp "[^          
 ]+"  
      :ignore-case t  
      :doc-spec '(("(gforth)Name Index" nil "`" "'  "))))  
   
 (load "etags")  (require 'etags)
   
 (defun forth-find-tag (tagname &optional next-p regexp-p)  (defun forth-find-tag (tagname &optional next-p regexp-p)
   (interactive (find-tag-interactive "Find tag: "))    (interactive (find-tag-interactive "Find tag: "))
     (unless (or regexp-p next-p)
       (setq tagname (concat "\\(^\\|\\s-+\\)\\(" (regexp-quote tagname) 
                               "\\)\\s-*\x7f")))
   (switch-to-buffer    (switch-to-buffer
    (find-tag-noselect (concat " " tagname " ") next-p regexp-p)))     (find-tag-noselect tagname next-p t)))
   
 (defvar forth-mode-syntax-table nil  (defvar forth-mode-syntax-table nil
   "Syntax table in use in Forth-mode buffers.")    "Syntax table in use in Forth-mode buffers.")
Line 951  exceeds 64 characters." Line 1146  exceeds 64 characters."
           (setq char (1+ char))))            (setq char (1+ char))))
       ))        ))
   
   
 (defun forth-mode-variables ()  (defun forth-mode-variables ()
   (set-syntax-table forth-mode-syntax-table)    (set-syntax-table forth-mode-syntax-table)
   (setq local-abbrev-table forth-mode-abbrev-table)    (setq local-abbrev-table forth-mode-abbrev-table)
Line 970  exceeds 64 characters." Line 1164  exceeds 64 characters."
   (make-local-variable 'comment-column)    (make-local-variable 'comment-column)
   (setq comment-column 40)    (setq comment-column 40)
   (make-local-variable 'comment-start-skip)    (make-local-variable 'comment-start-skip)
   (setq comment-start-skip "\\ ")    (setq comment-start-skip "\\\\ ")
   (make-local-variable 'comment-indent-hook)    (make-local-variable 'comment-indent-function)
   (setq comment-indent-hook 'forth-comment-indent)    (setq comment-indent-function 'forth-comment-indent)
   (make-local-variable 'parse-sexp-ignore-comments)    (make-local-variable 'parse-sexp-ignore-comments)
   (setq parse-sexp-ignore-comments t)    (setq parse-sexp-ignore-comments t)
   (setq case-fold-search t)    (setq case-fold-search t)
     (make-local-variable 'forth-was-point)
     (setq forth-was-point -1)
   (make-local-variable 'forth-words)    (make-local-variable 'forth-words)
   (make-local-variable 'forth-compiled-words)    (make-local-variable 'forth-compiled-words)
   (make-local-variable 'forth-compiled-indent-words)    (make-local-variable 'forth-compiled-indent-words)
Line 984  exceeds 64 characters." Line 1180  exceeds 64 characters."
   (make-local-variable 'forth-show-screen)    (make-local-variable 'forth-show-screen)
   (make-local-variable 'forth-screen-marker)    (make-local-variable 'forth-screen-marker)
   (make-local-variable 'forth-warn-long-lines)    (make-local-variable 'forth-warn-long-lines)
     (make-local-variable 'forth-screen-number-string)
     (make-local-variable 'forth-use-oof)
     (make-local-variable 'forth-use-objects) 
   (setq forth-screen-marker (copy-marker 0))    (setq forth-screen-marker (copy-marker 0))
   (add-hook 'after-change-functions 'forth-change-function))    (add-hook 'after-change-functions 'forth-change-function)
     (if (and forth-jit-parser (>= emacs-major-version 21))
         (add-hook 'fontification-functions 'forth-fontification-function))
     (setq imenu-create-index-function 'forth-create-index))
   
 ;;;###autoload  ;;;###autoload
 (defun forth-mode ()  (defun forth-mode ()
Line 995  are delimited with \\ and newline. Parag Line 1197  are delimited with \\ and newline. Parag
 only. Block files are autodetected, when read, and converted to normal   only. Block files are autodetected, when read, and converted to normal 
 stream source format. See also `forth-block-mode'.  stream source format. See also `forth-block-mode'.
 \\{forth-mode-map}  \\{forth-mode-map}
  Forth-split  
     Positions the current buffer on top and a forth-interaction window  
     below. The window size is controlled by the forth-percent-height  
     variable (see below).  
  Forth-reload  
     Reloads the forth library and restarts the forth process.  
  Forth-send-buffer  
     Sends the current buffer, in text representation, as input to the  
     forth process.  
  Forth-send-paragraph  
     Sends the previous or the current paragraph to the forth-process.  
     Note that the cursor only need to be with in the paragraph to be sent.  
  forth-documentation  
     Search for documentation of forward adjacent to cursor. Note! To use  
     this mode you have to add a line, to your .emacs file, defining the  
     directories to search through for documentation files (se variable  
     forth-help-load-path below) e.g. (setq forth-help-load-path '(nil)).  
   
 Variables controlling interaction and startup  
  forth-percent-height  
     Tells split how high to make the edit portion, in percent of the  
     current screen height.  
  forth-program-name  
     Tells the library which program name to execute in the interation  
     window.  
   
 Variables controlling syntax hilighting/recognition of parsed text:  Variables controlling syntax hilighting/recognition of parsed text:
  `forth-words'   `forth-words'
     List of words that have a special parsing behaviour and/or should be      List of words that have a special parsing behaviour and/or should be
     hilighted.      hilighted. Add custom words by setting forth-custom-words in your
       .emacs, or by setting forth-local-words, in source-files' local 
       variables lists.
    forth-use-objects
       Set this variable to non-nil in your .emacs, or in a local variables 
       list, to hilight and recognize the words from the \"Objects\" package 
       for object-oriented programming.
    forth-use-oof
       Same as above, just for the \"OOF\" package.
    forth-custom-words
       List of custom Forth words to prepend to `forth-words'. Should be set
       in your .emacs.
  forth-local-words   forth-local-words
     List of words to prepend to `forth-words', whenever a forth-mode      List of words to prepend to `forth-words', whenever a forth-mode
     buffer is created. That variable should be set by Forth sources, using      buffer is created. That variable should be set by Forth sources, using
Line 1035  Variables controlling syntax hilighting/ Line 1223  Variables controlling syntax hilighting/
        forth-local-words: ...         forth-local-words: ...
        End:         End:
     [THEN]      [THEN]
  forth-objects-words  
     Hilighting information for the words of the \"Objects\" package for   
     object-oriented programming. Append it to `forth-words', if you need   
     it.  
  forth-oof-words  
     Hilighting information for the words of the \"OOF\" package.  
  forth-hilight-level   forth-hilight-level
     Controls how much syntax hilighting is done. Should be in the range       Controls how much syntax hilighting is done. Should be in the range 
       0..3
   
 Variables controlling indentation style:  Variables controlling indentation style:
  `forth-indent-words'   `forth-indent-words'
     List of words that influence indentation.      List of words that influence indentation.
  `forth-local-indent-words'   forth-local-indent-words
     List of words to prepend to `forth-indent-words', similar to       List of words to prepend to `forth-indent-words', similar to 
     `forth-local-words'. Should be used for specifying file-specific       forth-local-words. Should be used for specifying file-specific 
     indentation, using a local variables list.      indentation, using a local variables list.
    forth-custom-indent-words
       List of words to prepend to `forth-indent-words'. Should be set in your
       .emacs.    
  forth-indent-level   forth-indent-level
     Indentation increment/decrement of Forth statements.      Indentation increment/decrement of Forth statements.
  forth-minor-indent-level   forth-minor-indent-level
     Minor indentation increment/decrement of Forth statemens.      Minor indentation increment/decrement of Forth statemens.
   
 Variables controlling block-file editing:  Variables controlling block-file editing:
  `forth-show-screen'   forth-show-screen
     Non-nil means, that the start of the current screen is marked by an      Non-nil means, that the start of the current screen is marked by an
     overlay arrow, and motion over screen boundaries displays the number       overlay arrow, and screen numbers are displayed in the mode line.
     of the screen entered. This variable is by default nil for `forth-mode'       This variable is by default nil for `forth-mode' and t for 
     and t for `forth-block-mode'.      `forth-block-mode'.
  `forth-overlay-arrow-string'   forth-overlay-arrow-string
     String to display as the overlay arrow, when `forth-show-screen' is t.      String to display as the overlay arrow, when `forth-show-screen' is t.
     Setting this variable to nil disables the overlay arrow.      Setting this variable to nil disables the overlay arrow.
  `forth-block-base'   forth-block-base
     Screen number of the first block in a block file. Defaults to 1.      Screen number of the first block in a block file. Defaults to 1.
  `forth-warn-long-lines'   forth-warn-long-lines
     Non-nil means that a warning message is displayed whenever you edit or      Non-nil means that a warning message is displayed whenever you edit or
     move over a line that is longer than 64 characters (the maximum line      move over a line that is longer than 64 characters (the maximum line
     length that can be stored into a block file). This variable defaults to      length that can be stored into a block file). This variable defaults to
     t for `forth-block-mode' and to nil for `forth-mode'.      t for `forth-block-mode' and to nil for `forth-mode'.
   
 Variables controling documentation search  Variables controlling interaction with the Forth-process (also see
  forth-help-load-path  `run-forth'):
     List of directories to search through to find *.doc    forth-program-name
     (forth-help-file-suffix) files. Nil means current default directory.      Program invoked by the `run-forth' command (including arguments).
     The specified directories must contain at least one .doc file. If it    inferior-forth-mode-hook
     does not and you still want the load-path to scan that directory, create      Hook for customising inferior-forth-mode.
     an empty file dummy.doc.    forth-compile-command
  forth-help-file-suffix      Default command to execute on `compile'.
     The file names to search for in each directory specified by  " 
     forth-help-load-path. Defaulted to '*.doc'.   
 "  
   (interactive)    (interactive)
   (kill-all-local-variables)    (kill-all-local-variables)
   (use-local-map forth-mode-map)    (use-local-map forth-mode-map)
   (setq mode-name "Forth")    (setq mode-name "Forth")
   (setq major-mode 'forth-mode)    (setq major-mode 'forth-mode)
     (forth-install-motion-hook)
   ;; convert buffer contents from block file format, if necessary    ;; convert buffer contents from block file format, if necessary
   (when (forth-detect-block-file-p)    (when (forth-detect-block-file-p)
     (widen)      (widen)
Line 1104  Variables controling documentation searc Line 1289  Variables controling documentation searc
 ;      (run-forth forth-program-name))  ;      (run-forth forth-program-name))
   (run-hooks 'forth-mode-hook))    (run-hooks 'forth-mode-hook))
   
   ;;;###autoload
 (define-derived-mode forth-block-mode forth-mode "Forth Block Source"   (define-derived-mode forth-block-mode forth-mode "Forth Block Source" 
   "Major mode for editing Forth block source files, derived from     "Major mode for editing Forth block source files, derived from 
 `forth-mode'. Differences to `forth-mode' are:  `forth-mode'. Differences to `forth-mode' are:
Line 1117  echo area and the line is truncated. Line 1303  echo area and the line is truncated.
   
 Another problem is imposed by block files that contain newline or tab   Another problem is imposed by block files that contain newline or tab 
 characters. When Emacs converts such files back to block file format,   characters. When Emacs converts such files back to block file format, 
 it'll translate those characters to a number of spaces. However, whenever  it'll translate those characters to a number of spaces. However, when
 you read such a file, a warning message is displayed in the echo area,  you read such a file, a warning message is displayed in the echo area,
 including a line number that may help you to locate and fix the problem.  including a line number that may help you to locate and fix the problem.
   
Line 1125  So have a look at the *Messages* buffer, Line 1311  So have a look at the *Messages* buffer,
 bell during block file read/write operations."  bell during block file read/write operations."
   (setq buffer-file-format '(forth-blocks))    (setq buffer-file-format '(forth-blocks))
   (setq forth-show-screen t)    (setq forth-show-screen t)
   (setq forth-warn-long-lines t))    (setq forth-warn-long-lines t)
     (setq forth-screen-number-string (format "%d" forth-block-base))
     (setq mode-line-format (append (reverse (cdr (reverse mode-line-format)))
                                    '("--S" forth-screen-number-string "-%-"))))
   
 (add-hook 'forth-mode-hook  (add-hook 'forth-mode-hook
       '(lambda ()         '(lambda () 
          (make-local-variable 'compile-command)           (make-local-variable 'compile-command)
          (setq compile-command "gforth ")           (setq compile-command "gforth ")
          (forth-hack-local-variables)           (forth-hack-local-variables)
            (forth-customize-words)
          (forth-compile-words)           (forth-compile-words)
          (forth-change-function (point-min) (point-max) nil)))           (unless (and forth-jit-parser (>= emacs-major-version 21))
              (forth-change-function (point-min) (point-max) nil t))))
   
 (defun forth-fill-paragraph ()   (defun forth-fill-paragraph () 
   "Fill comments (starting with '\'; do not fill code (block style    "Fill comments (starting with '\'; do not fill code (block style
Line 1176  programmers who tend to fill code won't Line 1367  programmers who tend to fill code won't
   (interactive)    (interactive)
   (query-replace-regexp "\\(~~ \\| ~~$\\)" "" nil))    (query-replace-regexp "\\(~~ \\| ~~$\\)" "" nil))
   
 (defvar forth-program-name "gforth"  (define-key forth-mode-map "\C-x\C-e" 'compile)
   "*Program invoked by the `run-forth' command.")  (define-key forth-mode-map "\C-x\C-n" 'next-error)
   (require 'compile)
 (defvar forth-band-name nil  
   "*Band loaded by the `run-forth' command.")  
   
 (defvar forth-program-arguments nil  
   "*Arguments passed to the Forth program by the `run-forth' command.")  
   
 (defun run-forth (command-line)  
   "Run an inferior Forth process. Output goes to the buffer `*forth*'.  
 With argument, asks for a command line. Split up screen and run forth   
 in the lower portion. The current-buffer when called will stay in the  
 upper portion of the screen, and all other windows are deleted.  
 Call run-forth again to make the *forth* buffer appear in the lower  
 part of the screen."  
   (interactive  
    (list (let ((default  
                  (or forth-process-command-line  
                      (forth-default-command-line))))  
            (if current-prefix-arg  
                (read-string "Run Forth: " default)  
                default))))  
   (setq forth-process-command-line command-line)  
   (forth-start-process command-line)  
   (forth-split)  
   (forth-set-runlight forth-runlight:input))  
   
 (defun run-forth-if-not ()  
   (if (not (forth-process-running-p))  
       (run-forth forth-program-name)))  
   
 (defun reset-forth ()  
   "Reset the Forth process."  
   (interactive)  
   (let ((process (get-process forth-program-name)))  
     (cond ((or (not process)  
                (not (eq (process-status process) 'run))  
                (yes-or-no-p  
 "The Forth process is running, are you SURE you want to reset it? "))  
            (message "Resetting Forth process...")  
            (forth-reload)  
            (message "Resetting Forth process...done")))))  
   
 (defun forth-default-command-line ()  
   (concat forth-program-name  
           (if forth-program-arguments  
               (concat " " forth-program-arguments)  
               "")))  
   
 ;;;; Internal Variables  
   
 (defvar forth-process-command-line nil  
   "Command used to start the most recent Forth process.")  
   
 (defvar forth-previous-send ""  
   "Most recent expression transmitted to the Forth process.")  
   
 (defvar forth-process-filter-queue '()  
   "Queue used to synchronize filter actions properly.")  
   
 (defvar forth-prompt "ok"  
   "The current forth prompt string.")  
   
 (defvar forth-start-hook nil  
   "If non-nil, a procedure to call when the Forth process is started.  
 When called, the current buffer will be the Forth process-buffer.")  
   
 (defvar forth-signal-death-message nil  
   "If non-nil, causes a message to be generated when the Forth process dies.")  
   
 (defvar forth-percent-height 50  
   "Tells run-forth how high the upper window should be in percent.")  
   
 (defconst forth-runlight:input ?I  
   "The character displayed when the Forth process is waiting for input.")  
   
 (defvar forth-mode-string ""  
   "String displayed in the mode line when the Forth process is running.")  
   
 ;;;; Evaluation Commands  
   
 (defun forth-send-string (&rest strings)  
   "Send the string arguments to the Forth process.  
 The strings are concatenated and terminated by a newline."  
   (cond ((forth-process-running-p)  
          (forth-send-string-1 strings))  
         ((yes-or-no-p "The Forth process has died.  Reset it? ")  
          (reset-forth)  
          (goto-char (point-max))  
          (forth-send-string-1 strings))))  
   
 (defun forth-send-string-1 (strings)  
   (let ((string (apply 'concat strings)))  
     (forth-send-string-2 string)))  
   
 (defun forth-send-string-2 (string)  
   (let ((process (get-process forth-program-name)))  
     (if (not (eq (current-buffer) (get-buffer forth-program-name)))  
         (progn  
          (forth-process-filter-output string)  
          (forth-process-filter:finish)))  
     (send-string process (concat string "\n"))  
     (if (eq (current-buffer) (process-buffer process))  
         (set-marker (process-mark process) (point)))))  
   
   
 (defun forth-send-region (start end)  
   "Send the current region to the Forth process.  
 The region is sent terminated by a newline."  
   (interactive "r")  
   (let ((process (get-process forth-program-name)))  
     (if (and process (eq (current-buffer) (process-buffer process)))  
         (progn (goto-char end)  
                (set-marker (process-mark process) end))))  
   (forth-send-string "\n" (buffer-substring start end) "\n"))  
   
 (defun forth-end-of-paragraph ()  
   (if (looking-at "[\t\n ]+") (skip-chars-backward  "\t\n "))  
   (if (not (re-search-forward "\n[ \t]*\n" nil t))  
       (goto-char (point-max))))  
   
 (defun forth-send-paragraph ()  
   "Send the current or the previous paragraph to the Forth process"  
   (interactive)  
   (let (end)  
     (save-excursion  
       (forth-end-of-paragraph)  
       (skip-chars-backward  "\t\n ")  
       (setq end (point))  
       (if (re-search-backward "\n[ \t]*\n" nil t)  
           (setq start (point))  
         (goto-char (point-min)))  
       (skip-chars-forward  "\t\n ")  
       (forth-send-region (point) end))))  
     
 (defun forth-send-buffer ()  
   "Send the current buffer to the Forth process."  
   (interactive)  
   (if (eq (current-buffer) (forth-process-buffer))  
       (error "Not allowed to send this buffer's contents to Forth"))  
   (forth-send-region (point-min) (point-max)))  
   
   
 ;;;; Basic Process Control  
   
 (defun forth-start-process (command-line)  
   (let ((buffer (get-buffer-create "*forth*")))  
     (let ((process (get-buffer-process buffer)))  
       (save-excursion  
         (set-buffer buffer)  
         (progn (if process (delete-process process))  
                (goto-char (point-max))  
                (setq mode-line-process '(": %s"))  
                (add-to-global-mode-string 'forth-mode-string)  
                (setq process  
                      (apply 'start-process  
                             (cons forth-program-name  
                                   (cons buffer  
                                         (forth-parse-command-line  
                                          command-line)))))  
                (set-marker (process-mark process) (point-max))  
                (forth-process-filter-initialize t)  
                (forth-modeline-initialize)  
                (set-process-sentinel process 'forth-process-sentinel)  
                (set-process-filter process 'forth-process-filter)  
                (run-hooks 'forth-start-hook)))  
     buffer)))  
   
 (defun forth-parse-command-line (string)  
   (setq string (substitute-in-file-name string))  
   (let ((start 0)  
         (result '()))  
     (while start  
       (let ((index (string-match "[ \t]" string start)))  
         (setq start  
               (cond ((not index)  
                      (setq result  
                            (cons (substring string start)  
                                  result))  
                      nil)  
                     ((= index start)  
                      (string-match "[^ \t]" string start))  
                     (t  
                      (setq result  
                            (cons (substring string start index)  
                                  result))  
                      (1+ index))))))  
     (nreverse result)))  
   
   
 (defun forth-process-running-p ()  
   "True iff there is a Forth process whose status is `run'."  
   (let ((process (get-process forth-program-name)))  
     (and process  
          (eq (process-status process) 'run))))  
   
 (defun forth-process-buffer ()  
   (let ((process (get-process forth-program-name)))  
     (and process (process-buffer process))))  
   
 ;;;; Process Filter  
   
 (defun forth-process-sentinel (proc reason)  
   (let ((inhibit-quit nil))  
     (forth-process-filter-initialize (eq reason 'run))  
     (if (eq reason 'run)  
         (forth-modeline-initialize)  
         (setq forth-mode-string "")))  
   (if (and (not (memq reason '(run stop)))  
            forth-signal-death-message)  
       (progn (beep)  
              (message  
 "The Forth process has died!  Do M-x reset-forth to restart it"))))  
   
 (defun forth-process-filter-initialize (running-p)  
   (setq forth-process-filter-queue (cons '() '()))  
   (setq forth-prompt "ok"))  
   
   
 (defun forth-process-filter (proc string)  
   (forth-process-filter-output string)  
   (forth-process-filter:finish))  
   
 (defun forth-process-filter:enqueue (action)  
   (let ((next (cons action '())))  
     (if (cdr forth-process-filter-queue)  
         (setcdr (cdr forth-process-filter-queue) next)  
         (setcar forth-process-filter-queue next))  
     (setcdr forth-process-filter-queue next)))  
   
 (defun forth-process-filter:finish ()  
   (while (car forth-process-filter-queue)  
     (let ((next (car forth-process-filter-queue)))  
       (setcar forth-process-filter-queue (cdr next))  
       (if (not (cdr next))  
           (setcdr forth-process-filter-queue '()))  
       (apply (car (car next)) (cdr (car next))))))  
   
 ;;;; Process Filter Output  
   
 (defun forth-process-filter-output (&rest args)  
   (if (not (and args  
                 (null (cdr args))  
                 (stringp (car args))  
                 (string-equal "" (car args))))  
       (forth-process-filter:enqueue  
        (cons 'forth-process-filter-output-1 args))))  
   
 (defun forth-process-filter-output-1 (&rest args)  
   (save-excursion  
     (forth-goto-output-point)  
     (apply 'insert-before-markers args)))  
   
 (defun forth-guarantee-newlines (n)  
   (save-excursion  
     (forth-goto-output-point)  
     (let ((stop nil))  
       (while (and (not stop)  
                   (bolp))  
         (setq n (1- n))  
         (if (bobp)  
             (setq stop t)  
           (backward-char))))  
     (forth-goto-output-point)  
     (while (> n 0)  
       (insert-before-markers ?\n)  
       (setq n (1- n)))))  
   
 (defun forth-goto-output-point ()  
   (let ((process (get-process forth-program-name)))  
     (set-buffer (process-buffer process))  
     (goto-char (process-mark process))))  
   
 (defun forth-modeline-initialize ()  
   (setq forth-mode-string "  "))  
   
 (defun forth-set-runlight (runlight)  
   (aset forth-mode-string 0 runlight)  
   (forth-modeline-redisplay))  
   
 (defun forth-modeline-redisplay ()  
   (save-excursion (set-buffer (other-buffer)))  
   (set-buffer-modified-p (buffer-modified-p))  
   (sit-for 0))  
   
 ;;;; Process Filter Operations  
   
 (defun add-to-global-mode-string (x)  
   (cond ((null global-mode-string)  
          (setq global-mode-string (list "" x " ")))  
         ((not (memq x global-mode-string))  
          (setq global-mode-string  
                (cons ""  
                      (cons x  
                            (cons " "  
                                  (if (equal "" (car global-mode-string))  
                                      (cdr global-mode-string)  
                                      global-mode-string))))))))  
   
   
 ;; Misc  
   
 (setq auto-mode-alist (append auto-mode-alist  (defvar forth-compile-command "gforth ")
                                 '(("\\.fs$" . forth-mode))))  ;(defvar forth-compilation-window-percent-height 30)
   
 (defun forth-split ()  (defun forth-split ()
   (interactive)    (interactive)
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         (switch-to-buffer buffer)          (switch-to-buffer buffer)
         (goto-char (point-max))          (goto-char (point-max))
         (other-window 1))))          (other-window 1))))
       
 (defun forth-reload ()  
   (interactive)  
   (let ((process (get-process forth-program-name)))  
     (if process (kill-process process t)))  
   (sleep-for 0 100)  
   (forth-mode))  
   
   
 ;; Special section for forth-help  
   
 (defvar forth-help-buffer "*Forth-help*"  
   "Buffer used to display the requested documentation.")  
   
 (defvar forth-help-load-path nil  
   "List of directories to search through to find *.doc  
  (forth-help-file-suffix) files. Nil means current default directory.  
  The specified directories must contain at least one .doc file. If it  
  does not and you still want the load-path to scan that directory, create  
  an empty file dummy.doc.")  
   
 (defvar forth-help-file-suffix "*.doc"  
   "The file names to search for in each directory.")  
   
 (setq forth-search-command-prefix "grep -n \"^    [^(]* ")  
 (defvar forth-search-command-suffix "/dev/null")  
 (defvar forth-grep-error-regexp ": No such file or directory")  
   
 (defun forth-function-called-at-point ()  
   "Return the space delimited word a point."  
   (save-excursion  
     (save-restriction  
       (narrow-to-region (max (point-min) (- (point) 1000)) (point-max))  
       (skip-chars-backward "^ \t\n" (point-min))  
       (if (looking-at "[ \t\n]")  
           (forward-char 1))  
       (let (obj (p (point)))  
         (skip-chars-forward "^ \t\n")  
         (buffer-substring p (point))))))  
   
 (defun forth-help-names-extend-comp (path-list result)  
   (cond ((null path-list) result)  
         ((null (car path-list))  
          (forth-help-names-extend-comp (cdr path-list)   
                (concat result forth-help-file-suffix " ")))  
         (t (forth-help-names-extend-comp  
             (cdr path-list) (concat result  
                                     (expand-file-name (car path-list)) "/"  
                                     forth-help-file-suffix " ")))))  
   
 (defun forth-help-names-extended ()  
   (if forth-help-load-path  
       (forth-help-names-extend-comp forth-help-load-path "")  
     (error "forth-help-load-path not specified")))  
   
   
 ;(define-key forth-mode-map "\C-hf" 'forth-documentation)  
   
 (defun forth-documentation (function)  
   "Display the full documentation of FORTH word."  
   (interactive  
    (let ((fn (forth-function-called-at-point))  
          (enable-recursive-minibuffers t)              
          search-list  
          val)  
      (setq val (read-string (format "Describe forth word (default %s): " fn)))  
      (list (if (equal val "") fn val))))  
   (forth-get-doc (concat forth-search-command-prefix  
                          (grep-regexp-quote (concat function " ("))  
                          "[^)]*\-\-\" " (forth-help-names-extended)  
                          forth-search-command-suffix))  
   (message "C-x C-m switches back to the forth interaction window"))  
   
 (defun forth-get-doc (command)  
   "Display the full documentation of command."  
   (let ((curwin (get-buffer-window (window-buffer)))  
         reswin  
         pointmax)  
     (with-output-to-temp-buffer forth-help-buffer  
       (progn  
         (call-process "sh" nil forth-help-buffer t "-c" command)  
         (setq reswin (get-buffer-window forth-help-buffer))))  
     (setq reswin (get-buffer-window forth-help-buffer))  
     (select-window reswin)  
     (save-excursion  
       (goto-char (setq pointmax (point-max)))  
       (insert "--------------------\n\n"))  
     (let (fd doc)   
       (while (setq fd (forth-get-file-data pointmax))  
         (setq doc (forth-get-doc-string fd))  
         (save-excursion  
           (goto-char (point-max))  
           (insert (substring (car fd) (string-match "[^/]*$" (car fd)))  
                   ":\n\n" doc "\n")))  
       (if (not doc)  
           (progn (goto-char (point-max)) (insert "Not found"))))  
     (select-window curwin)))  
     
 (defun forth-skip-error-lines ()  
   (let ((lines 0))  
     (save-excursion  
       (while (re-search-forward forth-grep-error-regexp nil t)  
         (beginning-of-line)  
         (forward-line 1)  
         (setq lines (1+ lines))))  
     (forward-line lines)))  
   
 (defun forth-get-doc-string (fd)  
   "Find file (car fd) and extract documentation from line (nth 1 fd)."  
   (let (result)  
     (save-window-excursion  
       (find-file (car fd))  
       (goto-line (nth 1 fd))  
       (if (not (eq (nth 1 fd) (1+ (count-lines (point-min) (point)))))  
           (error "forth-get-doc-string: serious error"))  
       (if (not (re-search-backward "\n[\t ]*\n" nil t))  
           (goto-char (point-min))  
         (goto-char (match-end 0)))  
       (let ((p (point)))  
         (if (not (re-search-forward "\n[\t ]*\n" nil t))  
             (goto-char (point-max)))  
         (setq result (buffer-substring p (point))))  
       (bury-buffer (current-buffer)))  
     result))  
   
 (defun forth-get-file-data (limit)  
   "Parse grep output and return '(filename line#) list. Return nil when  
  passing limit."  
   (forth-skip-error-lines)  
   (if (< (point) limit)  
       (let ((result (forth-get-file-data-cont limit)))  
         (forward-line 1)  
         (beginning-of-line)  
         result)))  
   
 (defun forth-get-file-data-cont (limit)  
   (let (result)  
     (let ((p (point)))  
       (skip-chars-forward "^:")  
       (setq result (buffer-substring p (point))))  
     (if (< (point) limit)  
         (let ((p (1+ (point))))  
           (forward-char 1)  
           (skip-chars-forward "^:")  
           (list result (string-to-int (buffer-substring p (point))))))))  
   
 (defun grep-regexp-quote (str)  
   (let ((i 0) (m 1) (res ""))  
     (while (/= m 0)  
       (setq m (string-to-char (substring str i)))  
       (if (/= m 0)  
           (progn  
             (setq i (1+ i))  
             (if (string-match (regexp-quote (char-to-string m))  
                               ".*\\^$[]")  
                 (setq res (concat res "\\")))  
             (setq res (concat res (char-to-string m))))))  
     res))  
   
   
 (define-key forth-mode-map "\C-x\C-e" 'compile)  
 (define-key forth-mode-map "\C-x\C-n" 'next-error)  
 (require 'compile "compile")  
   
 (defvar forth-compile-command "gforth ")  
 ;(defvar forth-compilation-window-percent-height 30)  
   
 (defun forth-compile (command)  (defun forth-compile (command)
   (interactive (list (setq forth-compile-command (read-string "Compile command: " forth-compile-command))))    (interactive (list (setq forth-compile-command (read-string "Compile command: " forth-compile-command))))
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   (setq ctools-compile-command command)    (setq ctools-compile-command command)
   (compile1 ctools-compile-command "No more errors"))    (compile1 ctools-compile-command "No more errors"))
   
   
 ;;; Forth menu  ;;; Forth menu
 ;;; Mikael Karlsson <qramika@eras70.ericsson.se>  ;;; Mikael Karlsson <qramika@eras70.ericsson.se>
   
 (cond ((string-match "XEmacs\\|Lucid" emacs-version)  ;; (dk) code commented out due to complaints of XEmacs users.  After
        (require 'func-menu)  ;; all, there's imenu/speedbar, which uses much smarter scanning
   ;; rules.
   (defconst fume-function-name-regexp-forth  
    "^\\(:\\)[ \t]+\\([^ \t]*\\)"  ;; (cond ((string-match "XEmacs\\|Lucid" emacs-version)
    "Expression to get word definitions in Forth.")  ;;        (require 'func-menu)
   
   (setq fume-function-name-regexp-alist  ;;   (defconst fume-function-name-regexp-forth
       (append '((forth-mode . fume-function-name-regexp-forth)   ;;    "^\\(:\\)[ \t]+\\([^ \t]*\\)"
              ) fume-function-name-regexp-alist))  ;;    "Expression to get word definitions in Forth.")
   
   ;; Find next forth word in the buffer  ;;   (setq fume-function-name-regexp-alist
   (defun fume-find-next-forth-function-name (buffer)  ;;       (append '((forth-mode . fume-function-name-regexp-forth) 
     "Searches for the next forth word in BUFFER."  ;;              ) fume-function-name-regexp-alist))
     (set-buffer buffer)  
     (if (re-search-forward fume-function-name-regexp nil t)  ;;   ;; Find next forth word in the buffer
       (let ((beg (match-beginning 2))  ;;   (defun fume-find-next-forth-function-name (buffer)
             (end (match-end 2)))  ;;     "Searches for the next forth word in BUFFER."
         (cons (buffer-substring beg end) beg))))  ;;     (set-buffer buffer)
   ;;     (if (re-search-forward fume-function-name-regexp nil t)
   ;;       (let ((beg (match-beginning 2))
   ;;             (end (match-end 2)))
   ;;         (cons (buffer-substring beg end) beg))))
   
   (setq fume-find-function-name-method-alist  ;;   (setq fume-find-function-name-method-alist
   (append '((forth-mode    . fume-find-next-forth-function-name))))  ;;   (append '((forth-mode    . fume-find-next-forth-function-name))))
   
   ))  ;;   ))
 ;;; End Forth menu  ;;; End Forth menu
   
 ;;; File folding of forth-files  ;;; File folding of forth-files
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 ;;; Works most of the times but loses sync with the cursor occasionally   ;;; Works most of the times but loses sync with the cursor occasionally 
 ;;; Could be improved by also folding on comments  ;;; Could be improved by also folding on comments
   
 (require 'outline)  ;; (dk) This code needs a rewrite; just too ugly and doesn't use the
   ;; newer and smarter scanning rules of `imenu'. Who needs it anyway??
   
   ;; (require 'outline)
   
 (defun f-outline-level ()  ;; (defun f-outline-level ()
         (cond   ((looking-at "\\`\\\\")  ;;   (cond      ((looking-at "\\`\\\\")
                         0)  ;;       0)
                 ((looking-at "\\\\ SEC")  ;;      ((looking-at "\\\\ SEC")
                         0)  ;;       0)
                 ((looking-at "\\\\ \\\\ .*")  ;;      ((looking-at "\\\\ \\\\ .*")
                         0)  ;;       0)
                 ((looking-at "\\\\ DEFS")  ;;      ((looking-at "\\\\ DEFS")
                         1)  ;;       1)
                 ((looking-at "\\/\\* ")  ;;      ((looking-at "\\/\\* ")
                         1)  ;;       1)
                 ((looking-at ": .*")  ;;      ((looking-at ": .*")
                         1)  ;;       1)
                 ((looking-at "\\\\G")  ;;      ((looking-at "\\\\G")
                         2)  ;;       2)
                 ((looking-at "[ \t]+\\\\")  ;;      ((looking-at "[ \t]+\\\\")
                         3))  ;;       3)))
 )                           
   ;; (defun fold-f  ()
 (defun fold-f  ()  ;;    (interactive)
    (interactive)  ;;    (add-hook 'outline-minor-mode-hook 'hide-body)
    (add-hook 'outline-minor-mode-hook 'hide-body)  
   ;;    ; outline mode header start, i.e. find word definitions
    ; outline mode header start, i.e. find word definitions  ;; ;;;   (setq  outline-regexp  "^\\(:\\)[ \t]+\\([^ \t]*\\)")
 ;;;   (setq  outline-regexp  "^\\(:\\)[ \t]+\\([^ \t]*\\)")  ;;    (setq  outline-regexp  "\\`\\\\\\|:\\|\\\\ SEC\\|\\\\G\\|[ \t]+\\\\\\|\\\\ DEFS\\|\\/\\*\\|\\\\ \\\\ .*")
    (setq  outline-regexp  "\\`\\\\\\|:\\|\\\\ SEC\\|\\\\G\\|[ \t]+\\\\\\|\\\\ DEFS\\|\\/\\*\\|\\\\ \\\\ .*")  ;;    (setq outline-level 'f-outline-level)
    (setq outline-level 'f-outline-level)  
   ;;    (outline-minor-mode)
    (outline-minor-mode)  ;;    (define-key outline-minor-mode-map '(shift up) 'hide-sublevels)
    (define-key outline-minor-mode-map '(shift up) 'hide-sublevels)  ;;    (define-key outline-minor-mode-map '(shift right) 'show-children)
    (define-key outline-minor-mode-map '(shift right) 'show-children)  ;;    (define-key outline-minor-mode-map '(shift left) 'hide-subtree)
    (define-key outline-minor-mode-map '(shift left) 'hide-subtree)  ;;    (define-key outline-minor-mode-map '(shift down) 'show-subtree))
    (define-key outline-minor-mode-map '(shift down) 'show-subtree)  
   
 )  
   
 ;;(define-key global-map '(shift up) 'fold-f)  ;;(define-key global-map '(shift up) 'fold-f)
   
Line 1755  The region is sent terminated by a newli Line 1485  The region is sent terminated by a newli
 ;;; for all of the recognized languages.  Scanning the buffer takes some time,  ;;; for all of the recognized languages.  Scanning the buffer takes some time,
 ;;; but not much.  ;;; but not much.
 ;;;  ;;;
 (cond ((string-match "XEmacs\\|Lucid" emacs-version)  ;; (cond ((string-match "XEmacs\\|Lucid" emacs-version)
        (require 'func-menu)  ;;        (require 'func-menu)
 ;;       (define-key global-map 'f8 'function-menu)  ;; ;;       (define-key global-map 'f8 'function-menu)
        (add-hook 'find-fible-hooks 'fume-add-menubar-entry)  ;;        (add-hook 'find-fible-hooks 'fume-add-menubar-entry)
 ;       (define-key global-map "\C-cg" 'fume-prompt-function-goto)  ;; ;       (define-key global-map "\C-cg" 'fume-prompt-function-goto)
 ;       (define-key global-map '(shift button3) 'mouse-function-menu)  ;; ;       (define-key global-map '(shift button3) 'mouse-function-menu)
 ))  ;; ))
   
 ;;; gforth.el ends here  ;;;
   ;;; Inferior Forth interpreter 
   ;;;     -- mostly copied from `cmuscheme.el' of Emacs 21.2
   ;;;
   
   (eval-and-compile (forth-require 'comint))
   
   (when (memq 'comint features)
   
     (defvar forth-program-name "gforth"
       "*Program invoked by the `run-forth' command, including program arguments")
   
     (defcustom inferior-forth-mode-hook nil
       "*Hook for customising inferior-forth-mode."
       :type 'hook
       :group 'forth)
   
     (defvar inferior-forth-mode-map
       (let ((m (make-sparse-keymap)))
         (define-key m "\r" 'comint-send-input)
         (define-key m "\M-\C-x" 'forth-send-paragraph-and-go)
         (define-key m "\C-c\C-l" 'forth-load-file)
         m))
     ;; Install the process communication commands in the forth-mode keymap.
     (define-key forth-mode-map "\e\C-m" 'forth-send-paragraph-and-go)
     (define-key forth-mode-map "\eo" 'forth-send-buffer-and-go)
   
     (define-key forth-mode-map "\M-\C-x" 'forth-send-paragraph-and-go)
     (define-key forth-mode-map "\C-c\C-r" 'forth-send-region)
     (define-key forth-mode-map "\C-c\M-r" 'forth-send-region-and-go)
     (define-key forth-mode-map "\C-c\C-z" 'forth-switch-to-interactive)
     (define-key forth-mode-map "\C-c\C-l" 'forth-load-file)
   
     (defvar forth-process-buffer)
   
     (define-derived-mode inferior-forth-mode comint-mode "Inferior Forth"
       "Major mode for interacting with an inferior Forth process.
   
   The following commands are available:
   \\{inferior-forth-mode-map}
   
   A Forth process can be fired up with M-x run-forth.
   
   Customisation: Entry to this mode runs the hooks on comint-mode-hook and
   inferior-forth-mode-hook (in that order).
   
   You can send text to the inferior Forth process from other buffers containing
   Forth source.
       forth-switch-to-interactive switches the current buffer to the Forth
           process buffer. 
       forth-send-paragraph sends the current paragraph to the Forth process.
       forth-send-region sends the current region to the Forth process.
       forth-send-buffer sends the current buffer to the Forth process.
   
       forth-send-paragraph-and-go, forth-send-region-and-go,
           forth-send-buffer-and-go switch to the Forth process buffer after
           sending their text.
   For information on running multiple processes in multiple buffers, see
   documentation for variable `forth-process-buffer'.
   
   Commands:
   Return after the end of the process' output sends the text from the
   end of process to point. If you accidentally suspend your process, use
   \\[comint-continue-subjob] to continue it. "
       ;; Customise in inferior-forth-mode-hook
       (setq comint-prompt-regexp "^") 
       (setq mode-line-process '(":%s")))
   
     (defun forth-args-to-list (string)
       (let ((where (string-match "[ \t]" string)))
         (cond ((null where) (list string))
               ((not (= where 0))
                (cons (substring string 0 where)
                      (forth-args-to-list (substring string (+ 1 where)
                                                     (length string)))))
               (t (let ((pos (string-match "[^ \t]" string)))
                    (if (null pos)
                        nil
                      (forth-args-to-list (substring string pos
                                                     (length string)))))))))
   
   ;;;###autoload
     (defun run-forth (cmd)
       "Run an inferior Forth process, input and output via buffer *forth*.
   If there is a process already running in `*forth*', switch to that buffer.
   With argument, allows you to edit the command line (default is value
   of `forth-program-name').  Runs the hooks `inferior-forth-mode-hook'
   \(after the `comint-mode-hook' is run).
   \(Type \\[describe-mode] in the process buffer for a list of commands.)"
   
       (interactive (list (if current-prefix-arg
                              (read-string "Run Forth: " forth-program-name)
                            forth-program-name)))
       (if (not (comint-check-proc "*forth*"))
           (let ((cmdlist (forth-args-to-list cmd)))
             (set-buffer (apply 'make-comint "forth" (car cmdlist)
                                nil (cdr cmdlist)))
             (inferior-forth-mode)))
       (setq forth-program-name cmd)
       (setq forth-process-buffer "*forth*")
       (pop-to-buffer "*forth*"))
   
     (defun forth-send-region (start end)
       "Send the current region to the inferior Forth process."
       (interactive "r")
       (comint-send-region (forth-proc) start end)
       (comint-send-string (forth-proc) "\n"))
   
     (defun forth-end-of-paragraph ()
       (if (looking-at "[\t\n ]+") (skip-chars-backward  "\t\n "))
       (if (not (re-search-forward "\n[ \t]*\n" nil t))
           (goto-char (point-max))))
   
     (defun forth-send-paragraph ()
       "Send the current or the previous paragraph to the Forth process"
       (interactive)
       (let (end)
         (save-excursion
           (forth-end-of-paragraph)
           (skip-chars-backward  "\t\n ")
           (setq end (point))
           (if (re-search-backward "\n[ \t]*\n" nil t)
               (setq start (point))
             (goto-char (point-min)))
           (skip-chars-forward  "\t\n ")
           (forth-send-region (point) end))))
   
     (defun forth-send-paragraph-and-go ()
       "Send the current or the previous paragraph to the Forth process.
   Then switch to the process buffer."
       (interactive)
       (forth-send-paragraph)
       (forth-switch-to-interactive t))
   
     (defun forth-send-buffer ()
       "Send the current buffer to the Forth process."
       (interactive)
       (if (eq (current-buffer) forth-process-buffer)
           (error "Not allowed to send this buffer's contents to Forth"))
       (forth-send-region (point-min) (point-max)))
   
     (defun forth-send-buffer-and-go ()
       "Send the current buffer to the Forth process.
   Then switch to the process buffer."
       (interactive)
       (forth-send-buffer)
       (forth-switch-to-interactive t))
   
   
     (defun forth-switch-to-interactive (eob-p)
       "Switch to the Forth process buffer.
   With argument, position cursor at end of buffer."
       (interactive "P")
       (if (get-buffer forth-process-buffer)
           (pop-to-buffer forth-process-buffer)
         (error "No current process buffer.  See variable `forth-process-buffer'"))
       (cond (eob-p
              (push-mark)
              (goto-char (point-max)))))
   
     (defun forth-send-region-and-go (start end)
       "Send the current region to the inferior Forth process.
   Then switch to the process buffer."
       (interactive "r")
       (forth-send-region start end)
       (forth-switch-to-interactive t))
   
     (defcustom forth-source-modes '(forth-mode forth-block-mode)
       "*Used to determine if a buffer contains Forth source code.
   If it's loaded into a buffer that is in one of these major modes, it's
   considered a Forth source file by `forth-load-file' and `forth-compile-file'.
   Used by these commands to determine defaults."
       :type '(repeat function)
       :group 'forth)
   
     (defvar forth-prev-l/c-dir/file nil
       "Caches the last (directory . file) pair.
   Caches the last pair used in the last `forth-load-file' or
   `forth-compile-file' command. Used for determining the default in the
   next one.")
   
     (defun forth-load-file (file-name)
       "Load a Forth file FILE-NAME into the inferior Forth process."
       (interactive (comint-get-source "Load Forth file: " forth-prev-l/c-dir/file
                                       forth-source-modes t)) ; T because LOAD
                                           ; needs an exact name
       (comint-check-source file-name) ; Check to see if buffer needs saved.
       (setq forth-prev-l/c-dir/file (cons (file-name-directory    file-name)
                                           (file-name-nondirectory file-name)))
       (comint-send-string (forth-proc) (concat "(load \""
                                                file-name
                                                "\"\)\n")))
   
   
    
     (defvar forth-process-buffer nil "*The current Forth process buffer.
   
   See `scheme-buffer' for an explanation on how to run multiple Forth 
   processes.")
   
     (defun forth-proc ()
       "Return the current Forth process.  See variable `forth-process-buffer'."
       (let ((proc (get-buffer-process (if (eq major-mode 'inferior-forth-mode)
                                           (current-buffer)
                                         forth-process-buffer))))
         (or proc
             (error "No current process.  See variable `forth-process-buffer'"))))
     )  ; (memq 'comint features)
   
   (provide 'forth-mode)
   
   ;;; gforth.el ends here
Removed from v.1.49  
changed lines
  Added in v.1.69

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