114 lines
3.5 KiB
EmacsLisp
114 lines
3.5 KiB
EmacsLisp
;;; sb-text.el -- shimbun backend class for text content -*- coding: iso-2022-7bit; -*-
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;; Copyright (C) 2001, 2002, 2003, 2004, 2005, 2009
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;; Yuuichi Teranishi <teranisi@gohome.org>
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;; Author: Yuuichi Teranishi <teranisi@gohome.org>
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;; Keywords: news
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;; This file is a part of shimbun.
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;; This program is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 2, or (at your option)
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;; any later version.
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with this program; see the file COPYING. If not, write to
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;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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;; Boston, MA 02110-1301, USA.
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;;; Commentary:
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;; Original code was nnshimbun.el written by
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;; TSUCHIYA Masatoshi <tsuchiya@namazu.org>.
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;;; Code:
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(require 'shimbun)
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(luna-define-class shimbun-text (shimbun) ())
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;; Fast fill-region function
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(defvar shimbun-fill-column (min 80 (- (frame-width) 4)))
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(defconst shimbun-kinsoku-bol-list
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(append "!)-_~}]:;',.?$B!"!#!$!%!&!'!(!)!*!+!,!-!.!/!0!1!2!3!4!5!6!7(B\
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$B!8!9!:!;!<!=!>!?!@!A!B!C!D!E!G!I!K!M!O!Q!S!U!W!Y![!k!l!m!n$!$#$%$'$)(B\
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$B$C$c$e$g$n%!%#%%%'%)%C%c%e%g%n%u%v(B" nil))
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(defconst shimbun-kinsoku-eol-list
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(append "({[`$B!F!H!J!L!N!P!R!T!V!X!Z!k!l!m!x(B" nil))
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(defun shimbun-fill-line ()
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(forward-line 0)
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(let ((top (point)) chr)
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(while (if (>= (move-to-column shimbun-fill-column)
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shimbun-fill-column)
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(if (memq (char-before) shimbun-kinsoku-eol-list)
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(prog1
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t
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(backward-char)
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(while (memq (char-before) shimbun-kinsoku-eol-list)
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(backward-char))
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(insert "\n"))
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(while (memq (setq chr (char-after)) shimbun-kinsoku-bol-list)
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(forward-char))
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(if (looking-at "\\s-+")
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(or (eolp) (delete-region (point) (match-end 0)))
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(or (not chr)
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(> (char-width chr) 1)
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(re-search-backward "\\<" top t)
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(end-of-line)))
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(if (eolp)
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nil
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(insert "\n")
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t)))
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(setq top (point))))
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(forward-line 1)
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(not (eobp)))
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(defun shimbun-shallow-rendering ()
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(goto-char (point-min))
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(while (search-forward "<p>" nil t)
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(insert "\n\n"))
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(goto-char (point-min))
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(while (re-search-forward "<br\\(:? /\\)?>" nil t)
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(insert "\n"))
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(shimbun-remove-markup)
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(shimbun-decode-entities)
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(goto-char (point-min))
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(while (shimbun-fill-line))
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(goto-char (point-min))
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(when (skip-chars-forward "\n")
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(delete-region (point-min) (point)))
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(while (re-search-forward "\n\n\n+" nil t)
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(replace-match "\n\n"))
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(goto-char (point-max))
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(when (skip-chars-backward "\n")
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(delete-region (point) (point-max)))
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(insert "\n"))
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(defun shimbun-make-text-contents (shimbun header)
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(shimbun-header-insert-and-buffer-string
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shimbun header nil
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;; When cleaning has been succeeded, this article is treated as a
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;; text/plain message. Otherwise, it is treated as a text/html
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;; message.
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(if (shimbun-clear-contents shimbun header)
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(shimbun-shallow-rendering)
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t)))
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(luna-define-method shimbun-make-contents ((shimbun shimbun-text)
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header)
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(shimbun-make-text-contents shimbun header))
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(provide 'sb-text)
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;;; sb-text.el ends here
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