--- gforth/gforth.el 1995/01/25 18:53:48 1.10 +++ gforth/gforth.el 2000/09/12 19:20:06 1.42 @@ -1,11 +1,10 @@ -;; This file is part of GNU Emacs. -;; Changes by anton -;; This is a variant of forth.el that came with TILE. -;; I left most of this stuff untouched and made just a few changes for -;; the things I use (mainly indentation and syntax tables). -;; So there is still a lot of work to do to adapt this to gforth. +;; Forth mode for Emacs + +;; Copyright (C) 1995,1996,1997,1998 Free Software Foundation, Inc. -;; GNU Emacs is distributed in the hope that it will be useful, +;; This file is part of Gforth. + +;; GForth is distributed in the hope that it will be useful, ;; but WITHOUT ANY WARRANTY. No author or distributor ;; accepts responsibility to anyone for the consequences of using it ;; or for whether it serves any particular purpose or works at all, @@ -15,12 +14,16 @@ ;; Everyone is granted permission to copy, modify and redistribute ;; GNU Emacs, but only under the conditions described in the ;; GNU Emacs General Public License. A copy of this license is -;; supposed to have been given to you along with GNU Emacs so you +;; supposed to have been given to you along with Gforth so you ;; can know your rights and responsibilities. It should be in a ;; file named COPYING. Among other things, the copyright notice ;; and this notice must be preserved on all copies. -;;; $Header: /nfs/unsafe/cvs-repository/src-master/gforth/gforth.el,v 1.10 1995/01/25 18:53:48 anton Exp $ +;; Changes by anton +;; This is a variant of forth.el that came with TILE. +;; I left most of this stuff untouched and made just a few changes for +;; the things I use (mainly indentation and syntax tables). +;; So there is still a lot of work to do to adapt this to gforth. ;;------------------------------------------------------------------- ;; A Forth indentation, documentation search and interaction library @@ -37,20 +40,30 @@ (defvar forth-positives - " : :noname begin do ?do while if ?dup-if ?dup-not-if else case create does> exception> struct [if] [else] " - "Contains all words which will cause the indent-level to be incremented + " : :noname m: :m code interpretation: ;code does> begin do ?do +do -do u+do u-do while if ?dup-if ?dup-0=-if else case of struct [if] [ifdef] [ifundef] [else] with public: private: class try recover " + "*Contains all words which will cause the indent-level to be incremented on the next line. OBS! All words in forth-positives must be surrounded by spaces.") (defvar forth-negatives - " ; until repeat while +loop loop s+loop else then endif again endcase does> end-struct [then] [else] " - "Contains all words which will cause the indent-level to be decremented + " ; ;m end-code ;code does> until repeat while +loop loop -loop s+loop else then endif again endcase endof end-struct [then] [else] [endif] endwith end-class class; how: recover endtry " + "*Contains all words which will cause the indent-level to be decremented on the current line. OBS! All words in forth-negatives must be surrounded by spaces.") (defvar forth-zeroes - " : :noname " - "Contains all words which causes the indent to go to zero") + " : :noname code interpretation: public: private: how: implements class class; " + "*Contains all words which causes the indent to go to zero") + +(setq forth-zero 0) + +(defvar forth-zup + " how: implements " + "Contains all words which causes zero indent level to change") + +(defvar forth-zdown + " class; how: class public: private: " + "Contains all words which causes zero indent level to change") (defvar forth-prefixes " postpone [compile] ['] [char] " @@ -67,10 +80,6 @@ OBS! All words in forth-negatives must b (if (not forth-mode-map) (setq forth-mode-map (make-sparse-keymap))) -(global-set-key "\e\C-m" 'forth-send-paragraph) -(global-set-key "\C-x\C-m" 'forth-split) -(global-set-key "\e " 'forth-reload) - ;(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~" 'forth-remove-tracers) @@ -81,6 +90,24 @@ OBS! All words in forth-negatives must b (define-key forth-mode-map "\t" 'forth-indent-command) (define-key forth-mode-map "\C-m" 'reindent-then-newline-and-indent) (define-key forth-mode-map "\M-q" 'forth-fill-paragraph) +(define-key forth-mode-map "\e." 'forth-find-tag) + +;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") + +(defun forth-find-tag (tagname &optional next-p regexp-p) + (interactive (find-tag-interactive "Find tag: ")) + (switch-to-buffer + (find-tag-noselect (concat " " tagname " ") next-p regexp-p))) (defvar forth-mode-syntax-table nil "Syntax table in use in Forth-mode buffers.") @@ -103,7 +130,7 @@ OBS! All words in forth-negatives must b ;only supports one comment syntax (and a hack to accomodate C++); I ;use '\' for natural language comments and '(' for formal comments ;like stack comments, so for me it's better to have emacs treat '\' -;comments as comments. I you want it different, make the appropriate +;comments as comments. If you want it different, make the appropriate ;changes (best in your .emacs file). ; ;Hmm, the C++ hack could be used to support both comment syntaxes: we @@ -143,7 +170,7 @@ OBS! All words in forth-negatives must b " Major mode for editing Forth code. Tab indents for Forth code. Comments are delimited with \\ and newline. Paragraphs are separated by blank lines -only. Delete converts tabs to spaces as it moves back. +only. \\{forth-mode-map} Forth-split Positions the current buffer on top and a forth-interaction window @@ -232,12 +259,12 @@ programmers who tend to fill code won't (beginning-of-line) (while (and (= (forward-line -1) 0) - (looking-at "[ \t]*\\\\[ \t]+"))) - (if (not (looking-at "[ \t]*\\\\[ \t]+")) + (looking-at "[ \t]*\\\\g?[ \t]+"))) + (if (not (looking-at "[ \t]*\\\\g?[ \t]+")) (forward-line 1)) (let ((from (point)) (to (save-excursion (forward-paragraph) (point)))) - (if (looking-at "[ \t]*\\\\[ \t]+") + (if (looking-at "[ \t]*\\\\g?[ \t]+") (progn (goto-char (match-end 0)) (set-fill-prefix) (fill-region from to nil)))))) @@ -311,8 +338,12 @@ programmers who tend to fill code won't (regexp-quote (concat " " w1 " ")) forth-negatives) forth-indent-level 0))) + (if (string-match (regexp-quote (concat " " w1 " ")) forth-zdown) + (setq forth-zero 0)) (if (string-match (regexp-quote (concat " " w1 " ")) forth-zeroes) - (setq indent 0)) + (setq indent forth-zero)) + (if (string-match (regexp-quote (concat " " w1 " ")) forth-zup) + (setq forth-zero 4)) indent)) (defun forth-sum-line-indentation () @@ -370,7 +401,7 @@ the input stream (comments, arguments, e (defun forth-remove-tracers () "Remove tracers of the form `~~ '. Queries the user for each occurrence." (interactive) - (query-replace "~~ " "")) + (query-replace-regexp "\\(~~ \\| ~~$\\)" "" nil)) (defvar forth-program-name "gforth" "*Program invoked by the `run-forth' command.") @@ -400,6 +431,10 @@ part of the screen." (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) @@ -413,12 +448,9 @@ part of the screen." (message "Resetting Forth process...done"))))) (defun forth-default-command-line () - (concat forth-program-name " -emacs" + (concat forth-program-name (if forth-program-arguments (concat " " forth-program-arguments) - "") - (if forth-band-name - (concat " -band " forth-band-name) ""))) ;;;; Internal Variables @@ -696,7 +728,7 @@ The region is sent terminated by a newli (interactive) (let ((process (get-process forth-program-name))) (if process (kill-process process t))) - (sleep-for-millisecs 100) + (sleep-for 0 100) (forth-mode)) @@ -865,3 +897,121 @@ The region is sent terminated by a newli (compile1 ctools-compile-command "No more errors")) +;;; Forth menu +;;; Mikael Karlsson + +(cond ((string-match "XEmacs\\|Lucid" emacs-version) + (require 'func-menu) + + (defconst fume-function-name-regexp-forth + "^\\(:\\)[ \t]+\\([^ \t]*\\)" + "Expression to get word definitions in Forth.") + + (setq fume-function-name-regexp-alist + (append '((forth-mode . fume-function-name-regexp-forth) + ) fume-function-name-regexp-alist)) + + ;; Find next forth word in the buffer + (defun fume-find-next-forth-function-name (buffer) + "Searches for the next forth word in BUFFER." + (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 + (append '((forth-mode . fume-find-next-forth-function-name)))) + + )) +;;; End Forth menu + +;;; File folding of forth-files +;;; uses outline +;;; Toggle activation with M-x fold-f (when editing a forth-file) +;;; Use f9 to expand, f10 to hide, Or the menubar in xemacs +;;; +;;; Works most of the times but loses sync with the cursor occasionally +;;; Could be improved by also folding on comments + +(require 'outline) + +(defun f-outline-level () + (cond ((looking-at "\\`\\\\") + 0) + ((looking-at "\\\\ SEC") + 0) + ((looking-at "\\\\ \\\\ .*") + 0) + ((looking-at "\\\\ DEFS") + 1) + ((looking-at "\\/\\* ") + 1) + ((looking-at ": .*") + 1) + ((looking-at "\\\\G") + 2) + ((looking-at "[ \t]+\\\\") + 3)) +) + +(defun fold-f () + (interactive) + (add-hook 'outline-minor-mode-hook 'hide-body) + + ; outline mode header start, i.e. find word definitions +;;; (setq outline-regexp "^\\(:\\)[ \t]+\\([^ \t]*\\)") + (setq outline-regexp "\\`\\\\\\|:\\|\\\\ SEC\\|\\\\G\\|[ \t]+\\\\\\|\\\\ DEFS\\|\\/\\*\\|\\\\ \\\\ .*") + (setq outline-level 'f-outline-level) + + (outline-minor-mode) + (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 left) 'hide-subtree) + (define-key outline-minor-mode-map '(shift down) 'show-subtree) + +) + +;;(define-key global-map '(shift up) 'fold-f) + +;;; end file folding + +;;; func-menu is a package that scans your source file for function definitions +;;; and makes a menubar entry that lets you jump to any particular function +;;; definition by selecting it from the menu. The following code turns this on +;;; for all of the recognized languages. Scanning the buffer takes some time, +;;; but not much. +;;; +(cond ((string-match "XEmacs\\|Lucid" emacs-version) + (require 'func-menu) +;; (define-key global-map 'f8 'function-menu) + (add-hook 'find-fible-hooks 'fume-add-menubar-entry) +; (define-key global-map "\C-cg" 'fume-prompt-function-goto) +; (define-key global-map '(shift button3) 'mouse-function-menu) +)) + +;;; Highlighting + +(if (not (file-exists-p "/usr/share/emacs/site-lisp/hl319.el")) + (require 'hilit19) + (require 'hl319)) + +(hilit-set-mode-patterns + '(forth-mode) + (append + '(("\\\\ \\(.*\\)$" nil comment)) ; comments + '(("\\\\[gG] \\(.*\\)$" nil comment)) ; comments + '(("(\\( [^)\n]* \\| \\)--\\( [^)\n]* \\| \\))" nil decl)) + '(("( " ")" comment)) + '(("\" [^\"\n]*\"" nil string)) + '(("\\(\\[IF]\\|\\[IFDEF]\\|\\[IFUNDEF]\\|\\[ELSE]\\|\\[THEN]\\|IF\\|ELSE\\|THEN\\|CASE\\|ENDCASE\\|OF\\|ENDOF\\|BEGIN\\|WHILE\\|REPEAT\\|UNTIL\\|AGAIN\\|DOES>\\|?DO\\|DO\\|\+LOOP\\|UNLOOP\\|LOOP\\|EXIT\\)" nil keyword)) + '(("\\(\\[if]\\|\\[ifdef]\\|\\[ifundef]\\|\\[else]\\|\\[then]\\|if\\|else\\|then\\|case\\|endcase\\|of\\|endof\\|begin\\|while\\|repeat\\|until\\|again\\|does>\\|?do\\|do\\|\+loop\\|unloop\\|loop\\|exit\\)" nil keyword)) + '((": *[^ \n]*" nil defun)) + '(("Defer *[^ \n]*" nil defun)) + '(("\\(Variable\\|Constant\\|Value\\|Create\\) *[^ \n]*" nil define)) + '(("\\(include\\|require\\) *[^ \n]*" nil include)) + '(("[\n ]\\(\\$[0-9A-Fa-f]+[\n ]\\|&[0-9]+[\n ]\\|[0-9]+[\n ]\\|%[01]+[\n ]\\|'[^ \n]+\\)+" nil formula)) + '((":noname" nil defun)))) + +;; end +