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Cream of the Crop 21
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Cream of the Crop 21 (Terry Blount) (October 1996).iso
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scribe.el
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Lisp/Scheme
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1996-01-20
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12KB
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326 lines
;;; scribe.el --- scribe mode, and its idiosyncratic commands.
;; Copyright (C) 1985 Free Software Foundation, Inc.
;; Maintainer: FSF
;; Keywords: wp
;; This file is part of GNU Emacs.
;; GNU Emacs is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING. If not, write to the
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
;;; Commentary:
;; A major mode for editing source in written for the Scribe text formatter.
;; Knows about Scribe syntax and standard layout rules. The command to
;; run Scribe on a buffer is bogus; someone interested should fix it.
;;; Code:
(defvar scribe-mode-syntax-table nil
"Syntax table used while in scribe mode.")
(defvar scribe-mode-abbrev-table nil
"Abbrev table used while in scribe mode.")
(defvar scribe-fancy-paragraphs nil
"*Non-NIL makes Scribe mode use a different style of paragraph separation.")
(defvar scribe-electric-quote nil
"*Non-NIL makes insert of double quote use `` or '' depending on context.")
(defvar scribe-electric-parenthesis nil
"*Non-NIL makes parenthesis char ( (]}> ) automatically insert its close
if typed after an @Command form.")
(defconst scribe-open-parentheses "[({<"
"Open parenthesis characters for Scribe.")
(defconst scribe-close-parentheses "])}>"
"Close parenthesis characters for Scribe.
These should match up with `scribe-open-parenthesis'.")
(if (null scribe-mode-syntax-table)
(let ((st (syntax-table)))
(unwind-protect
(progn
(setq scribe-mode-syntax-table (copy-syntax-table
text-mode-syntax-table))
(set-syntax-table scribe-mode-syntax-table)
(modify-syntax-entry ?\" " ")
(modify-syntax-entry ?\\ " ")
(modify-syntax-entry ?@ "w ")
(modify-syntax-entry ?< "(> ")
(modify-syntax-entry ?> ")< ")
(modify-syntax-entry ?[ "(] ")
(modify-syntax-entry ?] ")[ ")
(modify-syntax-entry ?{ "(} ")
(modify-syntax-entry ?} "){ ")
(modify-syntax-entry ?' "w "))
(set-syntax-table st))))
(defvar scribe-mode-map nil)
(if scribe-mode-map
nil
(setq scribe-mode-map (make-sparse-keymap))
(define-key scribe-mode-map "\t" 'scribe-tab)
(define-key scribe-mode-map "\e\t" 'tab-to-tab-stop)
(define-key scribe-mode-map "\es" 'center-line)
(define-key scribe-mode-map "\e}" 'up-list)
(define-key scribe-mode-map "\eS" 'center-paragraph)
(define-key scribe-mode-map "\"" 'scribe-insert-quote)
(define-key scribe-mode-map "(" 'scribe-parenthesis)
(define-key scribe-mode-map "[" 'scribe-parenthesis)
(define-key scribe-mode-map "{" 'scribe-parenthesis)
(define-key scribe-mode-map "<" 'scribe-parenthesis)
(define-key scribe-mode-map "\C-c\C-c" 'scribe-chapter)
(define-key scribe-mode-map "\C-c\C-t" 'scribe-section)
(define-key scribe-mode-map "\C-c\C-s" 'scribe-subsection)
(define-key scribe-mode-map "\C-c\C-v" 'scribe-insert-environment)
(define-key scribe-mode-map "\C-c\C-e" 'scribe-bracket-region-be)
(define-key scribe-mode-map "\C-c[" 'scribe-begin)
(define-key scribe-mode-map "\C-c]" 'scribe-end)
(define-key scribe-mode-map "\C-c\C-i" 'scribe-italicize-word)
(define-key scribe-mode-map "\C-c\C-b" 'scribe-bold-word)
(define-key scribe-mode-map "\C-c\C-u" 'scribe-underline-word))
;;;###autoload
(defun scribe-mode ()
"Major mode for editing files of Scribe (a text formatter) source.
Scribe-mode is similar text-mode, with a few extra commands added.
\\{scribe-mode-map}
Interesting variables:
scribe-fancy-paragraphs
Non-nil makes Scribe mode use a different style of paragraph separation.
scribe-electric-quote
Non-nil makes insert of double quote use `` or '' depending on context.
scribe-electric-parenthesis
Non-nil makes an open-parenthesis char (one of `([<{')
automatically insert its close if typed after an @Command form."
(interactive)
(kill-all-local-variables)
(use-local-map scribe-mode-map)
(setq mode-name "Scribe")
(setq major-mode 'scribe-mode)
(define-abbrev-table 'scribe-mode-abbrev-table ())
(setq local-abbrev-table scribe-mode-abbrev-table)
(make-local-variable 'comment-start)
(setq comment-start "@Comment[")
(make-local-variable 'comment-start-skip)
(setq comment-start-skip (concat "@Comment[" scribe-open-parentheses "]"))
(make-local-variable 'comment-column)
(setq comment-column 0)
(make-local-variable 'comment-end)
(setq comment-end "]")
(make-local-variable 'paragraph-start)
(setq paragraph-start (concat "\\([\n\f]\\)\\|\\(@\\w+["
scribe-open-parentheses
"].*["
scribe-close-parentheses
"]$\\)"))
(make-local-variable 'paragraph-separate)
(setq paragraph-separate (if scribe-fancy-paragraphs
paragraph-start "$"))
(make-local-variable 'sentence-end)
(setq sentence-end "\\([.?!]\\|@:\\)[]\"')}]*\\($\\| $\\|\t\\| \\)[ \t\n]*")
(make-local-variable 'compile-command)
(setq compile-command (concat "scribe " (buffer-file-name)))
(set-syntax-table scribe-mode-syntax-table)
(run-hooks 'text-mode-hook 'scribe-mode-hook))
(defun scribe-tab ()
(interactive)
(insert "@\\"))
;; This algorithm could probably be improved somewhat.
;; Right now, it loses seriously...
(defun scribe ()
"Run Scribe on the current buffer."
(interactive)
(call-interactively 'compile))
(defun scribe-envelop-word (string count)
"Surround current word with Scribe construct @STRING[...].
COUNT specifies how many words to surround. A negative count means
to skip backward."
(let ((spos (point)) (epos (point)) (ccoun 0) noparens)
(if (not (zerop count))
(progn (if (= (char-syntax (preceding-char)) ?w)
(forward-sexp (min -1 count)))
(setq spos (point))
(if (looking-at (concat "@\\w[" scribe-open-parentheses "]"))
(forward-char 2)
(goto-char epos)
(skip-chars-backward "\\W")
(forward-char -1))
(forward-sexp (max count 1))
(setq epos (point))))
(goto-char spos)
(while (and (< ccoun (length scribe-open-parentheses))
(save-excursion
(or (search-forward (char-to-string
(aref scribe-open-parentheses ccoun))
epos t)
(search-forward (char-to-string
(aref scribe-close-parentheses ccoun))
epos t)))
(setq ccoun (1+ ccoun))))
(if (>= ccoun (length scribe-open-parentheses))
(progn (goto-char epos)
(insert "@end(" string ")")
(goto-char spos)
(insert "@begin(" string ")"))
(goto-char epos)
(insert (aref scribe-close-parentheses ccoun))
(goto-char spos)
(insert "@" string (aref scribe-open-parentheses ccoun))
(goto-char epos)
(forward-char 3)
(skip-chars-forward scribe-close-parentheses))))
(defun scribe-underline-word (count)
"Underline COUNT words around point by means of Scribe constructs."
(interactive "p")
(scribe-envelop-word "u" count))
(defun scribe-bold-word (count)
"Boldface COUNT words around point by means of Scribe constructs."
(interactive "p")
(scribe-envelop-word "b" count))
(defun scribe-italicize-word (count)
"Italicize COUNT words around point by means of Scribe constructs."
(interactive "p")
(scribe-envelop-word "i" count))
(defun scribe-begin ()
(interactive)
(insert "\n")
(forward-char -1)
(scribe-envelop-word "Begin" 0)
(re-search-forward (concat "[" scribe-open-parentheses "]")))
(defun scribe-end ()
(interactive)
(insert "\n")
(forward-char -1)
(scribe-envelop-word "End" 0)
(re-se