version 1.22, 1997/04/11 17:42:23
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version 1.79, 2010/08/20 20:17:28
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;; Forth mode for Emacs |
;;; gforth.el --- major mode for editing (G)Forth sources |
;; This file is part of GForth. |
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;; Changes by anton |
;; Copyright (C) 1995,1996,1997,1998,2000,2001,2003,2004,2007,2008 Free Software Foundation, Inc. |
;; This is a variant of forth.el that came with TILE. |
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;; I left most of this stuff untouched and made just a few changes for |
;; This file is part of Gforth. |
;; the things I use (mainly indentation and syntax tables). |
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;; So there is still a lot of work to do to adapt this to gforth. |
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;; GForth is distributed in the hope that it will be useful, |
;; GForth is distributed in the hope that it will be useful, |
;; but WITHOUT ANY WARRANTY. No author or distributor |
;; but WITHOUT ANY WARRANTY. No author or distributor |
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;; file named COPYING. Among other things, the copyright notice |
;; file named COPYING. Among other things, the copyright notice |
;; and this notice must be preserved on all copies. |
;; and this notice must be preserved on all copies. |
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;; Author: Goran Rydqvist <gorry@ida.liu.se> |
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;; Maintainer: David Kühling <dvdkhlng@gmx.de> |
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;; Created: 16 July 88 by Goran Rydqvist |
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;; Keywords: forth, gforth |
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;; Changes by anton |
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;; This is a variant of forth.el that came with TILE. |
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;; I left most of this stuff untouched and made just a few changes for |
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;; the things I use (mainly indentation and syntax tables). |
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;; So there is still a lot of work to do to adapt this to gforth. |
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;; Changes by David |
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;; Added a syntax-hilighting engine, rewrote auto-indentation engine. |
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;; Added support for block files. |
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;; Replaced forth-process code with comint-based implementation. |
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;; Tested with Emacs 19.34, 20.5, 21 and XEmacs 21 |
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;;------------------------------------------------------------------- |
;;------------------------------------------------------------------- |
;; A Forth indentation, documentation search and interaction library |
;; A Forth indentation, documentation search and interaction library |
;;------------------------------------------------------------------- |
;;------------------------------------------------------------------- |
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;; Documentation: See forth-mode (^HF forth-mode) |
;; Documentation: See forth-mode (^HF forth-mode) |
;;------------------------------------------------------------------- |
;;------------------------------------------------------------------- |
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;;; Code: |
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;(setq debug-on-error t) |
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;; Code ripped from `version.el' for compatability with Emacs versions |
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;; prior to 19.23. |
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(if (not (boundp 'emacs-major-version)) |
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(defconst emacs-major-version |
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(progn (string-match "^[0-9]+" emacs-version) |
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(string-to-number (match-string 0 emacs-version))))) |
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;; Code ripped from `subr.el' for compatability with Emacs versions |
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;; prior to 20.1 |
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(eval-when-compile |
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(defun forth-emacs-older (major minor) |
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(or (< emacs-major-version major) |
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(and (= emacs-major-version major) (< emacs-minor-version minor)))) |
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(if (forth-emacs-older 20 1) |
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(progn |
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(defmacro when (cond &rest body) |
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"If COND yields non-nil, do BODY, else return nil." |
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(list 'if cond (cons 'progn body))) |
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(defmacro unless (cond &rest body) |
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"If COND yields nil, do BODY, else return nil." |
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(cons 'if (cons cond (cons nil body))))))) |
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;; `no-error' argument of require not supported in Emacs versions |
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;; prior to 20.4 :-( |
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(eval-and-compile |
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(defun forth-require (feature) |
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(condition-case err (require feature) (error nil)))) |
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(require 'font-lock) |
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;; define `font-lock-warning-face' in emacs-versions prior to 20.1 |
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;; (ripped from `font-lock.el') |
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(unless (boundp 'font-lock-warning-face) |
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(message "defining font-lock-warning-face") |
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(make-face 'font-lock-warning-face) |
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(defvar font-lock-warning-face 'font-lock-warning-face) |
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(set-face-foreground font-lock-warning-face "red") |
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(make-face-bold font-lock-warning-face)) |
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;; define `font-lock-constant-face' in XEmacs (just copy |
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;; `font-lock-preprocessor-face') |
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(unless (boundp 'font-lock-constant-face) |
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(copy-face font-lock-preprocessor-face 'font-lock-constant-face)) |
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;; define `regexp-opt' in emacs versions prior to 20.1 |
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;; (this implementation is extremely inefficient, though) |
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(eval-and-compile (forth-require 'regexp-opt)) |
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(unless (memq 'regexp-opt features) |
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(message (concat |
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"Warning: your Emacs version doesn't support `regexp-opt'. " |
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"Hilighting will be slow.")) |
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(defun regexp-opt (STRINGS &optional PAREN) |
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(let ((open (if PAREN "\\(" "")) (close (if PAREN "\\)" ""))) |
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(concat open (mapconcat 'regexp-quote STRINGS "\\|") close))) |
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(defun regexp-opt-depth (re) |
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(if (string= (substring re 0 2) "\\(") 1 0))) |
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; todo: |
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; |
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; screen-height existiert nicht in XEmacs, frame-height ersetzen? |
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; |
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; Wörter ordentlich hilighten, die nicht auf Whitespace beginnen ( ..)IF |
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; -- mit aktueller Konzeption nicht möglich?? |
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; |
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; Konfiguration über customization groups |
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; |
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; Bereich nur auf Wortanfang/ende ausweiten, wenn Anfang bzw Ende in einem |
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; Wort liegen (?) -- speed! |
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; |
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; 'forth-word' property muss eindeutig sein! |
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; |
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; Forth-Menu |
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; |
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; Interface zu GForth Prozessen (Patches von Michael Scholz) |
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; |
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; Byte-compile-Code rausschmeißen, Compilieren im Makefile über Emacs |
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; batch-Modus |
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; |
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; forth-help Kram rausschmeißen |
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; |
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; XEmacs Kompatibilität? imenu/speedbar -> fume? |
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; |
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; Folding neuschreiben (neue Parser-Informationen benutzen) |
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;;; Motion-hooking (dk) |
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;;; |
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(defun forth-idle-function () |
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"Function that is called when Emacs is idle to detect cursor motion |
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in forth-block-mode buffers (which is mainly used for screen number |
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display in). Currently ignores forth-mode buffers but that may change |
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in the future." |
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(if (eq major-mode 'forth-block-mode) |
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(forth-check-motion))) |
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(defvar forth-idle-function-timer nil |
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"Timer that runs `forth-idle-function' or nil if no timer installed.") |
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(defun forth-install-motion-hook () |
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"Install the motion-hooking mechanism. Currently uses idle timers |
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but might be transparently changed in the future." |
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(unless forth-idle-function-timer |
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;; install idle function only once (first time forth-mode is used) |
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(setq forth-idle-function-timer |
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(run-with-idle-timer .05 t 'forth-idle-function)))) |
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(defvar forth-was-point nil) |
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(defun forth-check-motion () |
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"Run `forth-motion-hooks', if `point' changed since last call. This |
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used to be called via `post-command-hook' but uses idle timers now as |
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users complaint about lagging performance." |
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(when (or (eq forth-was-point nil) (/= forth-was-point (point))) |
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(setq forth-was-point (point)) |
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(run-hooks 'forth-motion-hooks))) |
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;;; Hilighting and indentation engine (dk) |
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;;; |
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(defvar forth-disable-parser nil |
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"*Non-nil means to disable on-the-fly parsing of Forth-code. |
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This will disable hilighting of forth-mode buffers and will decrease |
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the smartness of the indentation engine. Only set it to non-nil, if |
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your computer is very slow. To disable hilighting, set |
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`forth-hilight-level' to zero.") |
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(defvar forth-jit-parser nil |
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"*Non-nil means to parse Forth-code just-in-time. |
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This eliminates the need for initially parsing forth-mode buffers and |
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thus speeds up loading of Forth files. That feature is only available |
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in Emacs21 (and newer versions).") |
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(defvar forth-words nil |
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"List of words for hilighting and recognition of parsed text areas. |
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Hilighting of object-oriented Forth code is achieved, by appending either |
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`forth-objects-words' or `forth-oof-words' to the list, depending on the values of `forth-use-objects' or `forth-use-oof'. |
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After `forth-words' changed, `forth-compile-words' must be called to |
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make the changes take effect. |
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Each item of `forth-words' has the form |
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(MATCHER TYPE HILIGHT . &optional PARSED-TEXT ...) |
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MATCHER is either a list of strings to match, or a REGEXP. |
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If it's a REGEXP, it should not be surrounded by '\\<' or '\\>', since |
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that'll be done automatically by the search routines. |
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TYPE should be one of 'definiton-starter', 'definition-ender', 'compile-only', |
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'immediate' or 'non-immediate'. Those information are required to determine |
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whether a word actually parses (and whether that parsed text needs to be |
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hilighted). |
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HILIGHT is a cons cell of the form (FACE . MINIMUM-LEVEL) |
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Where MINIMUM-LEVEL specifies the minimum value of `forth-hilight-level', |
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that's required for matching text to be hilighted. |
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PARSED-TEXT specifies whether and how a word parses following text. You can |
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specify as many subsequent PARSED-TEXT as you wish, but that shouldn't be |
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necessary very often. It has the following form: |
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(DELIM-REGEXP SKIP-LEADING-FLAG PARSED-TYPE HILIGHT) |
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DELIM-REGEXP is a regular expression that should match strings of length 1, |
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which are delimiters for the parsed text. |
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A non-nil value for PARSE-LEADING-FLAG means, that leading delimiter strings |
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before parsed text should be skipped. This is the parsing behaviour of the |
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Forth word WORD. Set it to t for name-parsing words, nil for comments and |
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strings. |
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PARSED-TYPE specifies what kind of text is parsed. It should be on of 'name', |
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'string' or 'comment'.") |
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(setq forth-words |
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'( |
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(("[") definition-ender (font-lock-keyword-face . 1)) |
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(("]" "]l") definition-starter (font-lock-keyword-face . 1)) |
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((":") definition-starter (font-lock-keyword-face . 1) |
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"[ \t\n]" t name (font-lock-function-name-face . 3)) |
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(("immediate" "compile-only" "restrict") |
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immediate (font-lock-keyword-face . 1)) |
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(("does>") compile-only (font-lock-keyword-face . 1)) |
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((":noname") definition-starter (font-lock-keyword-face . 1)) |
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((";" ";code" ";abi-code") definition-ender (font-lock-keyword-face . 1)) |
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(("include" "require" "needs" "use") |
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non-immediate (font-lock-keyword-face . 1) |
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"[\n\t ]" t string (font-lock-string-face . 1)) |
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(("included" "required" "thru" "load") |
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non-immediate (font-lock-keyword-face . 1)) |
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(("code" "abi-code") |
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non-immediate (font-lock-keyword-face . 1) |
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"[ \t\n]" t name (font-lock-function-name-face . 3)) |
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(("end-code") |
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non-immediate (font-lock-keyword-face . 1)) |
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(("[char]") compile-only (font-lock-keyword-face . 1) |
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"[ \t\n]" t string (font-lock-string-face . 1)) |
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(("char") non-immediate (font-lock-keyword-face . 1) |
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"[ \t\n]" t string (font-lock-string-face . 1)) |
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(("s\"" "c\"") immediate (font-lock-string-face . 1) |
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"[\"\n]" nil string (font-lock-string-face . 1)) |
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((".\"") compile-only (font-lock-string-face . 1) |
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"[\"\n]" nil string (font-lock-string-face . 1)) |
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(("abort\"") compile-only (font-lock-keyword-face . 1) |
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"[\"\n]" nil string (font-lock-string-face . 1)) |
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(("{") compile-only (font-lock-variable-name-face . 1) |
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"[\n}]" nil name (font-lock-variable-name-face . 1)) |
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((".(" "(") immediate (font-lock-comment-face . 1) |
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")" nil comment (font-lock-comment-face . 1)) |
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(("\\" "\\G") immediate (font-lock-comment-face . 1) |
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"[\n]" nil comment (font-lock-comment-face . 1)) |
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(("[if]" "[?do]" "[do]" "[for]" "[begin]" |
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"[endif]" "[then]" "[loop]" "[+loop]" "[next]" "[until]" "[repeat]" |
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"[again]" "[while]" "[else]") |
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immediate (font-lock-keyword-face . 2)) |
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(("[ifdef]" "[ifundef]") immediate (font-lock-keyword-face . 2) |
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"[ \t\n]" t name (font-lock-function-name-face . 3)) |
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(("if" "begin" "ahead" "do" "?do" "+do" "u+do" "-do" "u-do" "for" |
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"case" "of" "?dup-if" "?dup-0=-if" "then" "endif" "until" |
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"repeat" "again" "leave" "?leave" |
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"loop" "+loop" "-loop" "next" "endcase" "endof" "else" "while" "try" |
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"recover" "endtry" "iferror" "restore" "endtry-iferror" |
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"assert(" "assert0(" "assert1(" "assert2(" |
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"assert3(" ")" "<interpretation" "<compilation" "interpretation>" |
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"compilation>") |
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compile-only (font-lock-keyword-face . 2)) |
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(("true" "false" "c/l" "bl" "cell" "pi" "w/o" "r/o" "r/w") |
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non-immediate (font-lock-constant-face . 2)) |
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(("~~" "break:" "dbg") compile-only (font-lock-warning-face . 2)) |
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(("break\"") compile-only (font-lock-warning-face . 1) |
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"[\"\n]" nil string (font-lock-string-face . 1)) |
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(("postpone" "[is]" "defers" "[']" "[compile]") |
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compile-only (font-lock-keyword-face . 2) |
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"[ \t\n]" t name (font-lock-function-name-face . 3)) |
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(("is" "what's") immediate (font-lock-keyword-face . 2) |
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"[ \t\n]" t name (font-lock-function-name-face . 3)) |
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(("<is>" "'" "see") non-immediate (font-lock-keyword-face . 2) |
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"[ \t\n]" t name (font-lock-function-name-face . 3)) |
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(("[to]") compile-only (font-lock-keyword-face . 2) |
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"[ \t\n]" t name (font-lock-variable-name-face . 3)) |
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(("to") immediate (font-lock-keyword-face . 2) |
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"[ \t\n]" t name (font-lock-variable-name-face . 3)) |
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(("<to>") non-immediate (font-lock-keyword-face . 2) |
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"[ \t\n]" t name (font-lock-variable-name-face . 3)) |
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(("create" "variable" "constant" "2variable" "2constant" "fvariable" |
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"fconstant" "value" "field" "user" "vocabulary" |
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"create-interpret/compile") |
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non-immediate (font-lock-type-face . 2) |
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"[ \t\n]" t name (font-lock-variable-name-face . 3)) |
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("\\S-+%" non-immediate (font-lock-type-face . 2)) |
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(("defer" "alias" "create-interpret/compile:") |
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non-immediate (font-lock-type-face . 1) |
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"[ \t\n]" t name (font-lock-function-name-face . 3)) |
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(("end-struct") non-immediate (font-lock-keyword-face . 2) |
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"[ \t\n]" t name (font-lock-type-face . 3)) |
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(("struct") non-immediate (font-lock-keyword-face . 2)) |
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("-?[0-9]+\\(\\.[0-9]*e\\(-?[0-9]+\\)?\\|\\.?[0-9a-f]*\\)" |
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immediate (font-lock-constant-face . 3)) |
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("-?\\([&#][0-9]+\\|\\(0x\\|\\$\\)[0-9a-f]+\\|%[01]+\\)" |
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immediate (font-lock-constant-face . 3)) |
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)) |
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(defvar forth-use-objects nil |
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"*Non-nil makes forth-mode also hilight words from the \"Objects\" package.") |
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(defvar forth-objects-words |
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'(((":m") definition-starter (font-lock-keyword-face . 1) |
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"[ \t\n]" t name (font-lock-function-name-face . 3)) |
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(("m:") definition-starter (font-lock-keyword-face . 1)) |
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((";m") definition-ender (font-lock-keyword-face . 1)) |
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(("[current]" "[parent]") compile-only (font-lock-keyword-face . 1) |
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"[ \t\n]" t name (font-lock-function-name-face . 3)) |
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(("current" "overrides") non-immediate (font-lock-keyword-face . 2) |
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"[ \t\n]" t name (font-lock-function-name-face . 3)) |
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(("[to-inst]") compile-only (font-lock-keyword-face . 2) |
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"[ \t\n]" t name (font-lock-variable-name-face . 3)) |
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(("[bind]") compile-only (font-lock-keyword-face . 2) |
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"[ \t\n]" t name (font-lock-type-face . 3) |
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"[ \t\n]" t name (font-lock-function-name-face . 3)) |
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(("bind") non-immediate (font-lock-keyword-face . 2) |
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"[ \t\n]" t name (font-lock-type-face . 3) |
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"[ \t\n]" t name (font-lock-function-name-face . 3)) |
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(("inst-var" "inst-value") non-immediate (font-lock-type-face . 2) |
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"[ \t\n]" t name (font-lock-variable-name-face . 3)) |
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(("method" "selector") |
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non-immediate (font-lock-type-face . 1) |
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"[ \t\n]" t name (font-lock-function-name-face . 3)) |
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(("end-class" "end-interface") |
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non-immediate (font-lock-keyword-face . 2) |
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"[ \t\n]" t name (font-lock-type-face . 3)) |
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(("public" "protected" "class" "exitm" "implementation" "interface" |
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"methods" "end-methods" "this") |
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non-immediate (font-lock-keyword-face . 2)) |
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(("object") non-immediate (font-lock-type-face . 2))) |
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"Hilighting description for words of the \"Objects\" package") |
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(defvar forth-use-oof nil |
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"*Non-nil makes forth-mode also hilight words from the \"OOF\" package.") |
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(defvar forth-oof-words |
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'((("class") non-immediate (font-lock-keyword-face . 2) |
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"[ \t\n]" t name (font-lock-type-face . 3)) |
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(("var") non-immediate (font-lock-type-face . 2) |
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"[ \t\n]" t name (font-lock-variable-name-face . 3)) |
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(("method" "early") non-immediate (font-lock-type-face . 2) |
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"[ \t\n]" t name (font-lock-function-name-face . 3)) |
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(("::" "super" "bind" "bound" "link") |
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immediate (font-lock-keyword-face . 2) |
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"[ \t\n]" t name (font-lock-function-name-face . 3)) |
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(("ptr" "asptr" "[]") |
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immediate (font-lock-keyword-face . 2) |
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"[ \t\n]" t name (font-lock-variable-name-face . 3)) |
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(("class;" "how:" "self" "new" "new[]" "definitions" "class?" "with" |
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"endwith") |
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non-immediate (font-lock-keyword-face . 2)) |
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(("object") non-immediate (font-lock-type-face . 2))) |
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"Hilighting description for words of the \"OOF\" package") |
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(defvar forth-local-words nil |
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"List of Forth words to prepend to `forth-words'. Should be set by a |
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forth source, using a local variables list at the end of the file |
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(\"Local Variables: ... forth-local-words: ... End:\" construct).") |
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(defvar forth-custom-words nil |
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"List of Forth words to prepend to `forth-words'. Should be set in your |
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.emacs.") |
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(defvar forth-hilight-level 3 "*Level of hilighting of Forth code.") |
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(defvar forth-compiled-words nil "Compiled representation of `forth-words'.") |
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(defvar forth-indent-words nil |
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"List of words that have indentation behaviour. |
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Each element of `forth-indent-words' should have the form |
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(MATCHER INDENT1 INDENT2 &optional TYPE) |
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MATCHER is either a list of strings to match, or a REGEXP. |
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If it's a REGEXP, it should not be surrounded by `\\<` or `\\>`, since |
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that'll be done automatically by the search routines. |
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TYPE might be omitted. If it's specified, the only allowed value is |
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currently the symbol `non-immediate', meaning that the word will not |
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have any effect on indentation inside definitions. (:NONAME is a good |
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example for this kind of word). |
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INDENT1 specifies how to indent a word that's located at the beginning |
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of a line, following any number of whitespaces. |
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INDENT2 specifies how to indent words that are not located at the |
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beginning of a line. |
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INDENT1 and INDENT2 are indentation specifications of the form |
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(SELF-INDENT . NEXT-INDENT), where SELF-INDENT is a numerical value, |
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specifying how the matching line and all following lines are to be |
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indented, relative to previous lines. NEXT-INDENT specifies how to indent |
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following lines, relative to the matching line. |
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Even values of SELF-INDENT and NEXT-INDENT correspond to multiples of |
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`forth-indent-level'. Odd values get an additional |
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`forth-minor-indent-level' added/substracted. Eg a value of -2 indents |
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1 * forth-indent-level to the left, wheras 3 indents |
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1 * forth-indent-level + forth-minor-indent-level columns to the right.") |
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(setq forth-indent-words |
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'((("if" "begin" "do" "?do" "+do" "-do" "u+do" |
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"u-do" "?dup-if" "?dup-0=-if" "case" "of" "try" "iferror" |
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"[if]" "[ifdef]" "[ifundef]" "[begin]" "[for]" "[do]" "[?do]") |
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(0 . 2) (0 . 2)) |
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((":" ":noname" "code" "abi-code" "struct" "m:" ":m" "class" |
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"interface") |
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(0 . 2) (0 . 2) non-immediate) |
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("\\S-+%$" (0 . 2) (0 . 0) non-immediate) |
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((";" ";m") (-2 . 0) (0 . -2)) |
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(("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" "restore" "endtry-iferror" "[else]") |
|
(-2 . 2) (0 . 0)) |
|
(("does>" ";code" ";abi-code") (-1 . 1) (0 . 0)) |
|
(("while" "[while]") (-2 . 4) (0 . 2)) |
|
(("repeat" "[repeat]") (-4 . 0) (0 . -4)))) |
|
|
|
(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 |
|
;; in Lisp?? |
|
(defun forth-filter (predicate list) |
|
(let ((filtered nil)) |
|
(dolist (item list) |
|
(when (funcall predicate item) |
|
(if filtered |
|
(nconc filtered (list item)) |
|
(setq filtered (cons item nil))))) |
|
filtered)) |
|
|
|
;; Helper function for `forth-compile-word': return whether word has to be |
|
;; added to the compiled word list, for syntactic parsing and hilighting. |
|
(defun forth-words-filter (word) |
|
(let* ((hilight (nth 2 word)) |
|
(level (cdr hilight)) |
|
(parsing-flag (nth 3 word))) |
|
(or parsing-flag |
|
(<= level forth-hilight-level)))) |
|
|
|
;; Helper function for `forth-compile-word': translate one entry from |
|
;; `forth-words' into the form (regexp regexp-depth word-description) |
|
(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)) |
|
(regexp |
|
(concat "\\(" (cond ((stringp matcher) matcher) |
|
((listp matcher) (regexp-opt matcher)) |
|
(t (error "Invalid matcher"))) |
|
"\\)")) |
|
(depth (regexp-opt-depth regexp)) |
|
(description (cdr word))) |
|
(list regexp depth description))) |
|
|
|
;; Read `words' and create a compiled representation suitable for efficient |
|
;; parsing of the form |
|
;; (regexp (subexp-count word-description) (subexp-count2 word-description2) |
|
;; ...) |
|
(defun forth-compile-wordlist (words) |
|
(let* ((mapped (mapcar 'forth-compile-words-mapper words)) |
|
(regexp (concat "\\<\\(" |
|
(mapconcat 'car mapped "\\|") |
|
"\\)\\>")) |
|
(sub-count 2) |
|
(sub-list (mapcar |
|
(lambda (i) |
|
(let ((sub (cons sub-count (nth 2 i)))) |
|
(setq sub-count (+ sub-count (nth 1 i))) |
|
sub |
|
)) |
|
mapped))) |
|
(let ((result (cons regexp sub-list))) |
|
(byte-compile 'result) |
|
result))) |
|
|
|
(defun forth-compile-words () |
|
"Compile the the words from `forth-words' and `forth-indent-words' into |
|
the format that's later used for doing the actual hilighting/indentation. |
|
Store the resulting compiled wordlists in `forth-compiled-words' and |
|
`forth-compiled-indent-words', respective" |
|
(setq forth-compiled-words |
|
(forth-compile-wordlist |
|
(forth-filter 'forth-words-filter forth-words))) |
|
(setq forth-compiled-indent-words |
|
(forth-compile-wordlist forth-indent-words))) |
|
|
|
(defun forth-hack-local-variables () |
|
"Parse and bind local variables, set in the contents of the current |
|
forth-mode buffer. Prepend `forth-local-words' to `forth-words' and |
|
`forth-local-indent-words' to `forth-indent-words'." |
|
(put 'forth-local-indent-words 'safe-local-variable 'listp) |
|
(put 'forth-local-words 'safe-local-variable 'listp) |
|
(hack-local-variables) |
|
(setq forth-words (append forth-local-words forth-words)) |
|
(setq forth-indent-words (append forth-local-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 |
|
;; properties |
|
(defun forth-previous-start (pos) |
|
(let* ((word (get-text-property pos 'forth-word)) |
|
(prev (previous-single-property-change |
|
(min (point-max) (1+ pos)) 'forth-word |
|
(current-buffer) (point-min)))) |
|
(if (or (= (point-min) prev) word) prev |
|
(if (get-text-property (1- prev) 'forth-word) |
|
(previous-single-property-change |
|
prev 'forth-word (current-buffer) (point-min)) |
|
(point-min))))) |
|
|
|
;; Get location of the last character of the current/next forth word that's |
|
;; got properties, text that's parsed by the word is considered as parts of |
|
;; the word. |
|
(defun forth-next-end (pos) |
|
(let* ((word (get-text-property pos 'forth-word)) |
|
(next (next-single-property-change pos 'forth-word |
|
(current-buffer) (point-max)))) |
|
(if word next |
|
(if (get-text-property next 'forth-word) |
|
(next-single-property-change |
|
next 'forth-word (current-buffer) (point-max)) |
|
(point-max))))) |
|
|
|
(defun forth-next-whitespace (pos) |
|
(save-excursion |
|
(goto-char pos) |
|
(skip-syntax-forward "-" (point-max)) |
|
(point))) |
|
(defun forth-previous-word (pos) |
|
(save-excursion |
|
(goto-char pos) |
|
(re-search-backward "\\<" pos (point-min) 1) |
|
(point))) |
|
|
|
;; Delete all properties, used by Forth mode, from `from' to `to'. |
|
(defun forth-delete-properties (from to) |
|
(remove-text-properties |
|
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 |
|
;; expression that matched. (used for identifying branches "a\\|b\\|c...") |
|
(defun forth-get-regexp-branch () |
|
(let ((count 2)) |
|
(while (not (condition-case err (match-beginning count) |
|
(args-out-of-range t))) ; XEmacs requires error handling |
|
(setq count (1+ count))) |
|
count)) |
|
|
|
;; seek to next forth-word and return its "word-description" |
|
(defun forth-next-known-forth-word (to) |
|
(if (<= (point) to) |
|
(progn |
|
(let* ((regexp (car forth-compiled-words)) |
|
(pos (re-search-forward regexp to t))) |
|
(if pos (let ((branch (forth-get-regexp-branch)) |
|
(descr (cdr forth-compiled-words))) |
|
(goto-char (match-beginning 0)) |
|
(cdr (assoc branch descr))) |
|
'nil))) |
|
nil)) |
|
|
|
;; Set properties of forth word at `point', eventually parsing subsequent |
|
;; words, and parsing all whitespaces. Set point to delimiter after word. |
|
;; The word, including it's parsed text gets the `forth-word' property, whose |
|
;; value is unique, and may be used for getting the word's start/end |
|
;; positions. |
|
(defun forth-set-word-properties (state data) |
|
(let* ((start (point)) |
|
(end (progn (re-search-forward "[ \t]\\|$" (point-max) 1) |
|
(point))) |
|
(type (car data)) |
|
(hilight (nth 1 data)) |
|
(bad-word (and (not state) (eq type 'compile-only))) |
|
(hlface (if bad-word font-lock-warning-face |
|
(if (<= (cdr hilight) forth-hilight-level) |
|
(car hilight) nil)))) |
|
(when hlface (put-text-property start end 'face hlface)) |
|
;; if word parses in current state, process parsed range of text |
|
(when (or (not state) (eq type 'compile-only) (eq type 'immediate)) |
|
(let ((parse-data (nthcdr 2 data))) |
|
(while parse-data |
|
(let ((delim (nth 0 parse-data)) |
|
(skip-leading (nth 1 parse-data)) |
|
(parse-type (nth 2 parse-data)) |
|
(parsed-hilight (nth 3 parse-data)) |
|
(parse-start (point)) |
|
(parse-end)) |
|
(when skip-leading |
|
(while (and (looking-at delim) (> (match-end 0) (point)) |
|
(not (looking-at "\n"))) |
|
(forward-char))) |
|
(re-search-forward delim (point-max) 1) |
|
(setq parse-end (point)) |
|
(forth-delete-properties end parse-end) |
|
(when (<= (cdr parsed-hilight) forth-hilight-level) |
|
(put-text-property |
|
parse-start parse-end 'face (car parsed-hilight))) |
|
(put-text-property |
|
parse-start parse-end 'forth-parsed parse-type) |
|
(setq end parse-end) |
|
(setq parse-data (nthcdr 4 parse-data)))))) |
|
(put-text-property start end 'forth-word start))) |
|
|
|
;; Search for known Forth words in the range `from' to `to', using |
|
;; `forth-next-known-forth-word' and set their properties via |
|
;; `forth-set-word-properties'. |
|
(defun forth-update-properties (from to &optional loudly) |
|
(save-excursion |
|
(let ((msg-count 0) (state) (word-descr) (last-location)) |
|
(goto-char (forth-previous-word (forth-previous-start |
|
(max (point-min) (1- from))))) |
|
(setq to (forth-next-end (min (point-max) (1+ to)))) |
|
;; `to' must be on a space delimiter, if a parsing word was changed |
|
(setq to (forth-next-whitespace to)) |
|
(setq state (get-text-property (point) 'forth-state)) |
|
(setq last-location (point)) |
|
(forth-delete-properties (point) to) |
|
(put-text-property (point) to 'fontified t) |
|
;; hilight loop... |
|
(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) |
|
(when state (put-text-property last-location (point) 'forth-state t)) |
|
(let ((type (car word-descr))) |
|
(if (eq type 'definition-starter) (setq state t)) |
|
(if (eq type 'definition-ender) (setq state nil)) |
|
(setq last-location (point)))) |
|
;; update state property up to `to' |
|
(if (and state (< (point) to)) |
|
(put-text-property last-location to 'forth-state t)) |
|
;; extend search if following state properties differ from current state |
|
(if (< to (point-max)) |
|
(if (not (equal state (get-text-property (1+ to) 'forth-state))) |
|
(let ((extend-to (next-single-property-change |
|
to 'forth-state (current-buffer) (point-max)))) |
|
(forth-update-properties to extend-to)) |
|
)) |
|
))) |
|
|
|
;; save-buffer-state borrowed from `font-lock.el' |
|
(eval-when-compile |
|
(defmacro forth-save-buffer-state (varlist &rest body) |
|
"Bind variables according to VARLIST and eval BODY restoring buffer state." |
|
`(let* (,@(append varlist |
|
'((modified (buffer-modified-p)) (buffer-undo-list t) |
|
(inhibit-read-only t) (inhibit-point-motion-hooks t) |
|
before-change-functions after-change-functions |
|
deactivate-mark buffer-file-name buffer-file-truename))) |
|
,@body |
|
(when (and (not modified) (buffer-modified-p)) |
|
(set-buffer-modified-p nil))))) |
|
|
|
;; Function that is added to the `change-functions' hook. Calls |
|
;; `forth-update-properties' and keeps care of disabling undo information |
|
;; and stuff like that. |
|
(defun forth-change-function (from to len &optional loudly) |
|
(save-match-data |
|
(forth-save-buffer-state |
|
() |
|
(unless forth-disable-parser (forth-update-properties from to loudly)) |
|
(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 |
|
(byte-compile 'forth-set-word-properties) |
|
(byte-compile 'forth-next-known-forth-word) |
|
(byte-compile 'forth-update-properties) |
|
(byte-compile 'forth-delete-properties) |
|
(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) |
|
;; (setq profile-functions-list '(forth-set-word-properties forth-next-known-forth-word forth-update-properties forth-delete-properties forth-get-regexp-branch)) |
|
|
|
;;; Indentation |
|
;;; |
|
|
|
;; Return, whether `pos' is the first forth word on its line |
|
(defun forth-first-word-on-line-p (pos) |
|
(save-excursion |
|
(beginning-of-line) |
|
(skip-chars-forward " \t") |
|
(= pos (point)))) |
|
|
|
;; Return indentation data (SELF-INDENT . NEXT-INDENT) of next known |
|
;; indentation word, or nil if there is no word up to `to'. |
|
;; Position `point' at location just after found word, or at `to'. Parsed |
|
;; ranges of text will not be taken into consideration! |
|
(defun forth-next-known-indent-word (to) |
|
(if (<= (point) to) |
|
(progn |
|
(let* ((regexp (car forth-compiled-indent-words)) |
|
(pos (re-search-forward regexp to t))) |
|
(if pos |
|
(let* ((start (match-beginning 0)) |
|
(end (match-end 0)) |
|
(branch (forth-get-regexp-branch)) |
|
(descr (cdr forth-compiled-indent-words)) |
|
(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)) |
|
(nth 0 indent) (nth 1 indent)))) |
|
nil))) |
|
nil)) |
|
|
|
;; Translate indentation value `indent' to indentation column. Multiples of |
|
;; 2 correspond to multiples of `forth-indent-level'. Odd numbers get an |
|
;; additional `forth-minor-indent-level' added (or substracted). |
|
(defun forth-convert-to-column (indent) |
|
(let* ((sign (if (< indent 0) -1 1)) |
|
(value (abs indent)) |
|
(major (* (/ value 2) forth-indent-level)) |
|
(minor (* (% value 2) forth-minor-indent-level))) |
|
(* sign (+ major minor)))) |
|
|
|
;; Return the column increment, that the current line of forth code does to |
|
;; the current or following lines. `which' specifies which indentation values |
|
;; to use. 1 means the indentation of following lines relative to current |
|
;; line, 0 means the indentation of the current line relative to the previous |
|
;; line. Return `nil', if there are no indentation words on the current line. |
|
(defun forth-get-column-incr (which) |
|
(save-excursion |
|
(let ((regexp (car forth-compiled-indent-words)) |
|
(word-indent) |
|
(self-indent nil) |
|
(next-indent nil) |
|
(to (save-excursion (end-of-line) (point)))) |
|
(beginning-of-line) |
|
(while (setq word-indent (forth-next-known-indent-word to)) |
|
(let* ((self-incr (car word-indent)) |
|
(next-incr (cdr word-indent)) |
|
(self-column-incr (forth-convert-to-column self-incr)) |
|
(next-column-incr (forth-convert-to-column next-incr))) |
|
(setq next-indent (if next-indent next-indent 0)) |
|
(setq self-indent (if self-indent self-indent 0)) |
|
(if (or (and (> next-indent 0) (< self-column-incr 0)) |
|
(and (< next-indent 0) (> self-column-incr 0))) |
|
(setq next-indent (+ next-indent self-column-incr)) |
|
(setq self-indent (+ self-indent self-column-incr))) |
|
(setq next-indent (+ next-indent next-column-incr)))) |
|
(nth which (list self-indent next-indent))))) |
|
|
|
;; Find previous line that contains indentation words, return the column, |
|
;; to which following text should be indented to. |
|
(defun forth-get-anchor-column () |
|
(save-excursion |
|
(if (/= 0 (forward-line -1)) 0 |
|
(let ((indent)) |
|
(while (not (or (setq indent (forth-get-column-incr 1)) |
|
(<= (point) (point-min)))) |
|
(forward-line -1)) |
|
(+ (current-indentation) (if indent indent 0)))))) |
|
|
|
(defun forth-indent-line (&optional flag) |
|
"Correct indentation of the current Forth line." |
|
(let* ((anchor (forth-get-anchor-column)) |
|
(column-incr (forth-get-column-incr 0))) |
|
(forth-indent-to (if column-incr (+ anchor column-incr) anchor)))) |
|
|
|
(defun forth-current-column () |
|
(- (point) (save-excursion (beginning-of-line) (point)))) |
|
(defun forth-current-indentation () |
|
(- (save-excursion (beginning-of-line) (forward-to-indentation 0) (point)) |
|
(save-excursion (beginning-of-line) (point)))) |
|
|
|
(defun forth-indent-to (x) |
|
(let ((p nil)) |
|
(setq p (- (forth-current-column) (forth-current-indentation))) |
|
(forth-delete-indentation) |
|
(beginning-of-line) |
|
(indent-to x) |
|
(if (> p 0) (forward-char p)))) |
|
|
|
(defun forth-delete-indentation () |
|
(save-excursion |
|
(delete-region |
|
(progn (beginning-of-line) (point)) |
|
(progn (back-to-indentation) (point))))) |
|
|
|
(defun forth-indent-command () |
|
(interactive) |
|
(forth-indent-line t)) |
|
|
|
;; remove trailing whitespaces in current line |
|
(defun forth-remove-trailing () |
|
(save-excursion |
|
(end-of-line) |
|
(delete-region (point) (progn (skip-chars-backward " \t") (point))))) |
|
|
|
;; insert newline, removing any trailing whitespaces in the current line |
|
(defun forth-newline-remove-trailing () |
|
(save-excursion |
|
(delete-region (point) (progn (skip-chars-backward " \t") (point)))) |
|
(newline)) |
|
; (let ((was-point (point-marker))) |
|
; (unwind-protect |
|
; (progn (forward-line -1) (forth-remove-trailing)) |
|
; (goto-char (was-point))))) |
|
|
|
;; workaround for bug in `reindent-then-newline-and-indent' |
|
(defun forth-reindent-then-newline-and-indent () |
|
(interactive "*") |
|
(indent-according-to-mode) |
|
(forth-newline-remove-trailing) |
|
(indent-according-to-mode)) |
|
|
|
|
|
;;; Block file encoding/decoding (dk) |
|
;;; |
|
|
|
(defconst forth-c/l 64 "Number of characters per block line") |
|
(defconst forth-l/b 16 "Number of lines per block") |
|
|
|
;; Check whether the unconverted block file line, point is in, does not |
|
;; contain `\n' and `\t' characters. |
|
(defun forth-check-block-line (line) |
|
(let ((end (save-excursion (beginning-of-line) (forward-char forth-c/l) |
|
(point)))) |
|
(save-excursion |
|
(beginning-of-line) |
|
(when (search-forward "\n" end t) |
|
(message "Warning: line %i contains newline character #10" line) |
|
(ding t)) |
|
(beginning-of-line) |
|
(when (search-forward "\t" end t) |
|
(message "Warning: line %i contains tab character #8" line) |
|
(ding t))))) |
|
|
|
(defun forth-convert-from-block (from to) |
|
"Convert block file format to stream source in current buffer." |
|
(let ((line (count-lines (point-min) from))) |
|
(save-excursion |
|
(goto-char from) |
|
(set-mark to) |
|
(while (< (+ (point) forth-c/l) (mark t)) |
|
(setq line (1+ line)) |
|
(forth-check-block-line line) |
|
(forward-char forth-c/l) |
|
(forth-newline-remove-trailing)) |
|
(when (= (+ (point) forth-c/l) (mark t)) |
|
(forth-remove-trailing)) |
|
(mark t)))) |
|
|
|
;; Pad a line of a block file up to `forth-c/l' characters, positioning `point' |
|
;; at the end of line. |
|
(defun forth-pad-block-line () |
|
(save-excursion |
|
(end-of-line) |
|
(if (<= (current-column) forth-c/l) |
|
(move-to-column forth-c/l t) |
|
(message "Line %i longer than %i characters, truncated" |
|
(count-lines (point-min) (point)) forth-c/l) |
|
(ding t) |
|
(move-to-column forth-c/l t) |
|
(delete-region (point) (progn (end-of-line) (point)))))) |
|
|
|
;; Replace tab characters in current line by spaces. |
|
(defun forth-convert-tabs-in-line () |
|
(save-excursion |
|
(beginning-of-line) |
|
(while (search-forward "\t" (save-excursion (end-of-line) (point)) t) |
|
(backward-char) |
|
(delete-region (point) (1+ (point))) |
|
(insert-char ?\ (- tab-width (% (current-column) tab-width)))))) |
|
|
|
;; Delete newline at end of current line, concatenating it with the following |
|
;; line. Place `point' at end of newly formed line. |
|
(defun forth-delete-newline () |
|
(end-of-line) |
|
(delete-region (point) (progn (beginning-of-line 2) (point)))) |
|
|
|
(defun forth-convert-to-block (from to &optional original-buffer) |
|
"Convert range of text to block file format in current buffer." |
|
(let* ((lines 0)) ; I have to count lines myself, since `count-lines' has |
|
; problems with trailing newlines... |
|
(save-excursion |
|
(goto-char from) |
|
(set-mark to) |
|
;; pad lines to full length (`forth-c/l' characters per line) |
|
(while (< (save-excursion (end-of-line) (point)) (mark t)) |
|
(setq lines (1+ lines)) |
|
(forth-pad-block-line) |
|
(forth-convert-tabs-in-line) |
|
(forward-line)) |
|
;; also make sure the last line is padded, if `to' is at its end |
|
(end-of-line) |
|
(when (= (point) (mark t)) |
|
(setq lines (1+ lines)) |
|
(forth-pad-block-line) |
|
(forth-convert-tabs-in-line)) |
|
;; remove newlines between lines |
|
(goto-char from) |
|
(while (< (save-excursion (end-of-line) (point)) (mark t)) |
|
(forth-delete-newline)) |
|
;; append empty lines, until last block is complete |
|
(goto-char (mark t)) |
|
(let* ((required (* (/ (+ lines (1- forth-l/b)) forth-l/b) forth-l/b)) |
|
(pad-lines (- required lines))) |
|
(while (> pad-lines 0) |
|
(insert-char ?\ forth-c/l) |
|
(setq pad-lines (1- pad-lines)))) |
|
(point)))) |
|
|
|
(defun forth-detect-block-file-p () |
|
"Return non-nil if the current buffer is in block file format. Detection is |
|
done by checking whether the first line has 1024 characters or more." |
|
(save-restriction |
|
(widen) |
|
(save-excursion |
|
(goto-char (point-min)) |
|
(end-of-line) |
|
(>= (current-column) 1024)))) |
|
|
|
;; add block file conversion routines to `format-alist' |
|
(defconst forth-block-format-description |
|
'(forth-blocks "Forth block source file" nil |
|
forth-convert-from-block forth-convert-to-block |
|
t normal-mode)) |
|
(unless (memq forth-block-format-description format-alist) |
|
(setq format-alist (cons forth-block-format-description format-alist))) |
|
|
|
;;; End block file encoding/decoding |
|
|
|
;;; Block file editing |
|
;;; |
|
(defvar forth-overlay-arrow-string ">>") |
|
(defvar forth-block-base 1 "Number of first block in block file") |
|
(defvar forth-show-screen nil |
|
"Non-nil means to show screen starts and numbers (for block files)") |
|
(defvar forth-warn-long-lines nil |
|
"Non-nil means to warn about lines that are longer than 64 characters") |
|
|
|
(defvar forth-screen-marker nil) |
|
(defvar forth-screen-number-string nil) |
|
|
|
(defun forth-update-show-screen () |
|
"If `forth-show-screen' is non-nil, put overlay arrow to start of screen, |
|
`point' is in. If arrow now points to different screen than before, display |
|
screen number." |
|
(if (not forth-show-screen) |
|
(setq overlay-arrow-string nil) |
|
(save-excursion |
|
(let* ((line (count-lines (point-min) (min (point-max) (1+ (point))))) |
|
(first-line (1+ (* (/ (1- line) forth-l/b) forth-l/b))) |
|
(scr (+ forth-block-base (/ first-line forth-l/b)))) |
|
(setq overlay-arrow-string forth-overlay-arrow-string) |
|
(goto-line first-line) |
|
(setq overlay-arrow-position forth-screen-marker) |
|
(set-marker forth-screen-marker |
|
(save-excursion (goto-line first-line) (point))) |
|
(setq forth-screen-number-string (format "%d" scr)))))) |
|
|
|
(add-hook 'forth-motion-hooks 'forth-update-show-screen) |
|
|
|
(defun forth-update-warn-long-lines () |
|
"If `forth-warn-long-lines' is non-nil, display a warning whenever a line |
|
exceeds 64 characters." |
|
(when forth-warn-long-lines |
|
(when (> (save-excursion (end-of-line) (current-column)) forth-c/l) |
|
(message "Warning: current line exceeds %i characters" |
|
forth-c/l)))) |
|
|
|
(add-hook 'forth-motion-hooks 'forth-update-warn-long-lines) |
|
|
|
;;; End block file editing |
|
|
(defvar forth-positives |
|
" : :noname 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] [else] with public: private: class " |
|
"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 |
|
" ; end-code ;code does> until repeat while +loop loop -loop s+loop else then endif again endcase endof end-struct [then] [else] [endif] endwith class; how: " |
|
"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 code interpretation: public: private: how: class class; " |
|
"Contains all words which causes the indent to go to zero") |
|
|
|
(setq forth-zero 0) |
|
|
|
(defvar forth-zup |
|
" how: " |
|
"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] " |
|
"words that prefix and escape other words") |
|
|
|
(defvar forth-mode-abbrev-table nil |
(defvar forth-mode-abbrev-table nil |
"Abbrev table in use in Forth-mode buffers.") |
"Abbrev table in use in Forth-mode buffers.") |
Line 76 OBS! All words in forth-negatives must b
|
Line 1099 OBS! All words in forth-negatives must b
|
(if (not forth-mode-map) |
(if (not forth-mode-map) |
(setq forth-mode-map (make-sparse-keymap))) |
(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 "\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) |
(define-key forth-mode-map "\C-m" 'reindent-then-newline-and-indent) |
(define-key forth-mode-map "\C-m" 'forth-reindent-then-newline-and-indent) |
(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) |
|
|
(load "etags") |
;; setup for C-h C-i to work |
|
(eval-and-compile (forth-require 'info-look)) |
|
(when (memq 'info-look features) |
|
(defvar forth-info-lookup '(symbol (forth-mode "\\S-+" t |
|
(("(gforth)Word Index")) |
|
"\\S-+"))) |
|
(unless (memq forth-info-lookup info-lookup-alist) |
|
(setq info-lookup-alist (cons forth-info-lookup info-lookup-alist))) |
|
;; in X-Emacs C-h C-i is by default bound to Info-query |
|
(define-key forth-mode-map [?\C-h ?\C-i] 'info-lookup-symbol)) |
|
|
|
;; (info-lookup-add-help |
|
;; :topic 'symbol |
|
;; :mode 'forth-mode |
|
;; :regexp "[^ |
|
;; ]+" |
|
;; :ignore-case t |
|
;; :doc-spec '(("(gforth)Name Index" nil "`" "' ")))) |
|
|
|
(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.") |
|
|
|
;; Important: hilighting/indentation now depends on a correct syntax table. |
|
;; All characters, except whitespace *must* belong to the "word constituent" |
|
;; syntax class. If different behaviour is required, use of Categories might |
|
;; help. |
(if (not forth-mode-syntax-table) |
(if (not forth-mode-syntax-table) |
(progn |
(progn |
(setq forth-mode-syntax-table (make-syntax-table)) |
(setq forth-mode-syntax-table (make-syntax-table)) |
Line 112 OBS! All words in forth-negatives must b
|
Line 1155 OBS! All words in forth-negatives must b
|
(while (< char 256) |
(while (< char 256) |
(modify-syntax-entry char "w" forth-mode-syntax-table) |
(modify-syntax-entry char "w" forth-mode-syntax-table) |
(setq char (1+ char)))) |
(setq char (1+ char)))) |
(modify-syntax-entry ?\" "\"" forth-mode-syntax-table) |
|
(modify-syntax-entry ?\\ "<" forth-mode-syntax-table) |
|
(modify-syntax-entry ?\n ">" forth-mode-syntax-table) |
|
)) |
)) |
;I do not define '(' and ')' as comment delimiters, because emacs |
|
;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. 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 |
|
;can have different comment styles, if both comments start with the |
|
;same character. we could use ' ' as first and '(' and '\' as second |
|
;character. However this would fail for G\ comments. |
|
|
|
(defconst forth-indent-level 4 |
|
"Indentation of Forth statements.") |
|
|
|
(defun forth-mode-variables () |
(defun forth-mode-variables () |
(set-syntax-table forth-mode-syntax-table) |
(set-syntax-table forth-mode-syntax-table) |
Line 149 OBS! All words in forth-negatives must b
|
Line 1175 OBS! All words in forth-negatives must b
|
(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) |
|
(make-local-variable 'forth-was-point) |
|
(setq forth-was-point -1) |
|
(make-local-variable 'forth-words) |
|
(make-local-variable 'forth-compiled-words) |
|
(make-local-variable 'forth-compiled-indent-words) |
|
(make-local-variable 'forth-hilight-level) |
|
(make-local-variable 'after-change-functions) |
|
(make-local-variable 'forth-show-screen) |
|
(make-local-variable 'forth-screen-marker) |
|
(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)) |
|
(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 () |
" |
" |
Major mode for editing Forth code. Tab indents for Forth code. Comments |
Major mode for editing Forth code. Tab indents for Forth code. Comments |
are delimited with \\ and newline. Paragraphs are separated by blank lines |
are delimited with \\ and newline. Paragraphs are separated by blank lines |
only. Delete converts tabs to spaces as it moves back. |
only. Block files are autodetected, when read, and converted to normal |
|
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 |
Variables controlling syntax hilighting/recognition of parsed text: |
below. The window size is controlled by the forth-percent-height |
`forth-words' |
variable (see below). |
List of words that have a special parsing behaviour and/or should be |
Forth-reload |
hilighted. Add custom words by setting forth-custom-words in your |
Reloads the forth library and restarts the forth process. |
.emacs, or by setting forth-local-words, in source-files' local |
Forth-send-buffer |
variables lists. |
Sends the current buffer, in text representation, as input to the |
forth-use-objects |
forth process. |
Set this variable to non-nil in your .emacs, or in a local variables |
Forth-send-paragraph |
list, to hilight and recognize the words from the \"Objects\" package |
Sends the previous or the current paragraph to the forth-process. |
for object-oriented programming. |
Note that the cursor only need to be with in the paragraph to be sent. |
forth-use-oof |
forth-documentation |
Same as above, just for the \"OOF\" package. |
Search for documentation of forward adjacent to cursor. Note! To use |
forth-custom-words |
this mode you have to add a line, to your .emacs file, defining the |
List of custom Forth words to prepend to `forth-words'. Should be set |
directories to search through for documentation files (se variable |
in your .emacs. |
forth-help-load-path below) e.g. (setq forth-help-load-path '(nil)). |
forth-local-words |
|
List of words to prepend to `forth-words', whenever a forth-mode |
Variables controlling interaction and startup |
buffer is created. That variable should be set by Forth sources, using |
forth-percent-height |
a local variables list at the end of file, to get file-specific |
Tells split how high to make the edit portion, in percent of the |
hilighting. |
current screen height. |
0 [IF] |
forth-program-name |
Local Variables: ... |
Tells the library which program name to execute in the interation |
forth-local-words: ... |
window. |
End: |
|
[THEN] |
|
forth-hilight-level |
|
Controls how much syntax hilighting is done. Should be in the range |
|
0..3 |
|
|
Variables controlling indentation style: |
Variables controlling indentation style: |
forth-positives |
`forth-indent-words' |
A string containing all words which causes the indent-level of the |
List of words that influence indentation. |
following line to be incremented. |
forth-local-indent-words |
OBS! Each word must be surronded by spaces. |
List of words to prepend to `forth-indent-words', similar to |
forth-negatives |
forth-local-words. Should be used for specifying file-specific |
A string containing all words which causes the indentation of the |
indentation, using a local variables list. |
current line to be decremented, if the word begin the line. These |
forth-custom-indent-words |
words also has a cancelling effect on the indent-level of the |
List of words to prepend to `forth-indent-words'. Should be set in your |
following line, independent of position. |
.emacs. |
OBS! Each word must be surronded by spaces. |
|
forth-zeroes |
|
A string containing all words which causes the indentation of the |
|
current line to go to zero, if the word begin the line. |
|
OBS! Each word must be surronded by spaces. |
|
forth-indent-level |
forth-indent-level |
Indentation increment/decrement of Forth statements. |
Indentation increment/decrement of Forth statements. |
|
forth-minor-indent-level |
|
Minor indentation increment/decrement of Forth statemens. |
|
|
Note! A word which decrements the indentation of the current line, may |
Variables controlling block-file editing: |
also be mentioned in forth-positives to cause the indentation to |
forth-show-screen |
resume the previous level. |
Non-nil means, that the start of the current screen is marked by an |
|
overlay arrow, and screen numbers are displayed in the mode line. |
Variables controling documentation search |
This variable is by default nil for `forth-mode' and t for |
forth-help-load-path |
`forth-block-mode'. |
List of directories to search through to find *.doc |
forth-overlay-arrow-string |
(forth-help-file-suffix) files. Nil means current default directory. |
String to display as the overlay arrow, when `forth-show-screen' is t. |
The specified directories must contain at least one .doc file. If it |
Setting this variable to nil disables the overlay arrow. |
does not and you still want the load-path to scan that directory, create |
forth-block-base |
an empty file dummy.doc. |
Screen number of the first block in a block file. Defaults to 1. |
forth-help-file-suffix |
forth-warn-long-lines |
The file names to search for in each directory specified by |
Non-nil means that a warning message is displayed whenever you edit or |
forth-help-load-path. Defaulted to '*.doc'. |
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 |
|
t for `forth-block-mode' and to nil for `forth-mode'. |
|
|
|
Variables controlling interaction with the Forth-process (also see |
|
`run-forth'): |
|
forth-program-name |
|
Program invoked by the `run-forth' command (including arguments). |
|
inferior-forth-mode-hook |
|
Hook for customising inferior-forth-mode. |
|
forth-compile-command |
|
Default command to execute on `compile'. |
|
" |
(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 |
|
(when (forth-detect-block-file-p) |
|
(widen) |
|
(message "Converting from Forth block source...") |
|
(forth-convert-from-block (point-min) (point-max)) |
|
(message "Converting from Forth block source...done")) |
|
;; if user switched from forth-block-mode to forth-mode, make sure the file |
|
;; is now stored as normal strem source |
|
(when (equal buffer-file-format '(forth-blocks)) |
|
(setq buffer-file-format nil)) |
(forth-mode-variables) |
(forth-mode-variables) |
; (if (not (forth-process-running-p)) |
; (if (not (forth-process-running-p)) |
; (run-forth forth-program-name)) |
; (run-forth forth-program-name)) |
(run-hooks 'forth-mode-hook)) |
(run-hooks 'forth-mode-hook)) |
|
|
(setq forth-mode-hook |
;;;###autoload |
|
(define-derived-mode forth-block-mode forth-mode "Forth Block Source" |
|
"Major mode for editing Forth block source files, derived from |
|
`forth-mode'. Differences to `forth-mode' are: |
|
* files are converted to block format, when written (`buffer-file-format' |
|
is set to `(forth-blocks)') |
|
* `forth-show-screen' and `forth-warn-long-lines' are t by default |
|
|
|
Note that the length of lines in block files is limited to 64 characters. |
|
When writing longer lines to a block file, a warning is displayed in the |
|
echo area and the line is truncated. |
|
|
|
Another problem is imposed by block files that contain newline or tab |
|
characters. When Emacs converts such files back to block file format, |
|
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, |
|
including a line number that may help you to locate and fix the problem. |
|
|
|
So have a look at the *Messages* buffer, whenever you hear (or see) Emacs' |
|
bell during block file read/write operations." |
|
(setq buffer-file-format '(forth-blocks)) |
|
(setq forth-show-screen 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 |
'(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-customize-words) |
|
(forth-compile-words) |
|
(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 269 programmers who tend to fill code won't
|
Line 1370 programmers who tend to fill code won't
|
(1+ (current-column))) |
(1+ (current-column))) |
comment-column))) |
comment-column))) |
|
|
(defun forth-current-indentation () |
|
(save-excursion |
|
(beginning-of-line) |
|
(back-to-indentation) |
|
(current-column))) |
|
|
|
(defun forth-delete-indentation () |
|
(let ((b nil) (m nil)) |
|
(save-excursion |
|
(beginning-of-line) |
|
(setq b (point)) |
|
(back-to-indentation) |
|
(setq m (point))) |
|
(delete-region b m))) |
|
|
|
(defun forth-indent-line (&optional flag) |
|
"Correct indentation of the current Forth line." |
|
(let ((x (forth-calculate-indent))) |
|
(forth-indent-to x))) |
|
|
|
(defun forth-indent-command () |
|
(interactive) |
|
(forth-indent-line t)) |
|
|
|
(defun forth-indent-to (x) |
|
(let ((p nil)) |
|
(setq p (- (current-column) (forth-current-indentation))) |
|
(forth-delete-indentation) |
|
(beginning-of-line) |
|
(indent-to x) |
|
(if (> p 0) (forward-char p)))) |
|
|
|
;;Calculate indent |
|
(defun forth-calculate-indent () |
|
(let ((w1 nil) (indent 0) (centre 0)) |
|
(save-excursion |
|
(beginning-of-line) |
|
(skip-chars-backward " \t\n") |
|
(beginning-of-line) |
|
(back-to-indentation) |
|
(setq indent (current-column)) |
|
(setq centre indent) |
|
(setq indent (+ indent (forth-sum-line-indentation)))) |
|
(save-excursion |
|
(beginning-of-line) |
|
(back-to-indentation) |
|
(let ((p (point))) |
|
(skip-chars-forward "^ \t\n") |
|
(setq w1 (buffer-substring p (point))))) |
|
(if (> (- indent centre) forth-indent-level) |
|
(setq indent (+ centre forth-indent-level))) |
|
(if (> (- centre indent) forth-indent-level) |
|
(setq indent (- centre forth-indent-level))) |
|
(if (< indent 0) (setq indent 0)) |
|
(setq indent (- indent |
|
(if (string-match |
|
(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 forth-zero)) |
|
(if (string-match (regexp-quote (concat " " w1 " ")) forth-zup) |
|
(setq forth-zero 4)) |
|
indent)) |
|
|
|
(defun forth-sum-line-indentation () |
|
"Add upp the positive and negative weights of all words on the current line." |
|
(let ((b (point)) (e nil) (sum 0) (w nil) (t1 nil) (t2 nil) (first t)) |
|
(end-of-line) (setq e (point)) |
|
(goto-char b) |
|
(while (< (point) e) |
|
(setq w (forth-next-word)) |
|
(setq t1 (string-match (regexp-quote (concat " " w " ")) |
|
forth-positives)) |
|
(setq t2 (string-match (regexp-quote (concat " " w " ")) |
|
forth-negatives)) |
|
(if t1 |
|
(setq sum (+ sum forth-indent-level))) |
|
(if (and t2 (not first)) |
|
(setq sum (- sum forth-indent-level))) |
|
(skip-chars-forward " \t") |
|
(setq first nil)) |
|
sum)) |
|
|
|
|
|
(defun forth-next-word () |
|
"Return the next forth-word. Skip anything that the forth-word takes from |
|
the input stream (comments, arguments, etc.)" |
|
;actually, it would be better to use commands based on the |
|
;syntax-table or comment-start etc. |
|
(let ((w1 nil)) |
|
(while (not w1) |
|
(skip-chars-forward " \t\n") |
|
(let ((p (point))) |
|
(skip-chars-forward "^ \t\n") |
|
(setq w1 (buffer-substring p (point)))) |
|
(cond ((string-match "\"" w1) |
|
(progn |
|
(skip-chars-forward "^\"\n") |
|
(forward-char))) |
|
((string-match "\\\\" w1) |
|
(progn |
|
(end-of-line) |
|
)) |
|
((or (equal "(" w1) (equal ".(" w1)) |
|
(progn |
|
(skip-chars-forward "^)\n") |
|
(forward-char))) |
|
((string-match (regexp-quote (concat " " w1 " ")) forth-prefixes) |
|
(progn (skip-chars-forward " \t\n") |
|
(skip-chars-forward "^ \t\n"))) |
|
(t nil))) |
|
w1)) |
|
|
|
|
|
;; Forth commands |
;; Forth commands |
|
|
Line 393 the input stream (comments, arguments, e
|
Line 1378 the input stream (comments, arguments, e
|
(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 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) |
Line 704 The region is sent terminated by a newli
|
Line 1394 The region is sent terminated by a newli
|
(progn |
(progn |
(delete-other-windows) |
(delete-other-windows) |
(split-window-vertically |
(split-window-vertically |
(/ (* (screen-height) forth-percent-height) 100)) |
(/ (frame-height) 2)) |
(other-window 1) |
(other-window 1) |
(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-millisecs 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) |
|
(interactive (list (setq forth-compile-command (read-string "Compile command: " forth-compile-command)))) |
|
(forth-split-1 "*compilation*") |
|
(setq ctools-compile-command command) |
|
(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 |
Line 920 The region is sent terminated by a newli
|
Line 1441 The region is sent terminated by a newli
|
;;; 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?? |
|
|
;;(define-key outline-minor-mode-map 'f9 'show-entry) |
;; (require 'outline) |
;;(define-key outline-minor-mode-map 'f10 'hide-entry) |
|
|
;; (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)) |
|
|
(defun fold-f () |
|
(interactive) |
|
(add-hook 'outline-minor-mode-hook 'hide-body) |
|
|
|
; outline mode header start, i.e. find word definitions |
;;(define-key global-map '(shift up) 'fold-f) |
(setq outline-regexp "^\\(:\\)[ \t]+\\([^ \t]*\\)") |
|
|
|
(outline-minor-mode) |
|
) |
|
;;; end file folding |
;;; end file folding |
|
|
;;; func-menu is a package that scans your source file for function definitions |
;;; func-menu is a package that scans your source file for function definitions |
Line 942 The region is sent terminated by a newli
|
Line 1490 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) |
)) |
;; )) |
|
|
|
;;; |
|
;;; 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 (null (re-search-backward "\n[ \t]*\n" nil t)) |
|
(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 (my-start end) |
|
"Send the current region to the inferior Forth process. |
|
Then switch to the process buffer." |
|
(interactive "r") |
|
(forth-send-region my-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 "s\" " file-name "\" included\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 |