125 lines
4.1 KiB
EmacsLisp
125 lines
4.1 KiB
EmacsLisp
;;; w3m-perldoc.el --- The add-on program to view Perl documents.
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;; Copyright (C) 2001, 2002, 2003, 2004, 2005, 2007
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;; TSUCHIYA Masatoshi <tsuchiya@namazu.org>
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;; Author: TSUCHIYA Masatoshi <tsuchiya@namazu.org>
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;; Keywords: w3m, perldoc
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;; This file is a part of emacs-w3m.
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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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;; w3m-perldoc.el is the add-on program of emacs-w3m to view Perl
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;; documents. For more detail about emacs-w3m, see:
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;;
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;; http://emacs-w3m.namazu.org/
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;;; Code:
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(require 'w3m)
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(defgroup w3m-perldoc nil
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"Perldoc front-end for emacs-w3m."
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:group 'w3m
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:prefix "w3m-perldoc-")
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(defcustom w3m-perldoc-command "perldoc"
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"*Name of the executable file of perldoc."
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:group 'w3m-perldoc
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:type '(string :size 0))
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(defcustom w3m-perldoc-pod2html-command "pod2html"
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"*Name of the executable file of pod2html."
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:group 'w3m-perldoc
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:type '(string :size 0))
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(defcustom w3m-perldoc-pod2html-arguments
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'("--noindex")
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"*Arguments of pod2html."
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:group 'w3m-perldoc
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:type '(repeat (string :format "Argument: %v\n" :size 0))
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:get (lambda (symbol)
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(delq nil (delete "" (mapcar (lambda (x) (if (stringp x) x))
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(default-value symbol)))))
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:set (lambda (symbol value)
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(custom-set-default
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symbol
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(delq nil (delete "" (mapcar (lambda (x) (if (stringp x) x))
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value))))))
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(defcustom w3m-perldoc-input-coding-system
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(if (string= "Japanese" w3m-language)
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'euc-japan
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(if (w3m-find-coding-system 'utf-8)
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'utf-8
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'iso-latin-1))
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"*Coding system used when writing to `w3m-perldoc-command'."
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:group 'w3m-perldoc
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:type '(coding-system :size 0))
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(defcustom w3m-perldoc-output-coding-system
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'undecided
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"*Coding system used when reading from `w3m-perldoc-command'."
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:group 'w3m-perldoc
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:type '(coding-system :size 0))
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;;;###autoload
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(defun w3m-about-perldoc (url &optional no-decode no-cache &rest args)
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(when (string-match "\\`about://perldoc/" url)
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(let ((docname (if (= (length url) (match-end 0))
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"perl"
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(w3m-url-decode-string (substring url (match-end 0)))))
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(default-directory w3m-profile-directory)
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(process-environment (copy-sequence process-environment)))
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;; To specify the place in which pod2html generates its cache files.
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(setenv "HOME" (expand-file-name w3m-profile-directory))
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(and (let ((coding-system-for-read w3m-perldoc-output-coding-system))
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(zerop (call-process w3m-perldoc-command
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nil t nil "-u" docname)))
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(let ((coding-system-for-write w3m-perldoc-input-coding-system)
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(coding-system-for-read w3m-perldoc-input-coding-system))
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(zerop (apply (function call-process-region)
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(point-min) (point-max)
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w3m-perldoc-pod2html-command
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t '(t nil) nil
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(append w3m-perldoc-pod2html-arguments
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'("--htmlroot=about://perldoc")))))
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(let ((case-fold-search t))
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(goto-char (point-min))
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(while (re-search-forward
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"<a href=\"about://perldoc/\\([^\"]*\\)\\(\\.html\\)\">" nil t)
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(delete-region (match-beginning 2) (match-end 2))
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(save-restriction
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(narrow-to-region (match-beginning 1) (match-end 1))
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(while (search-backward "/" nil t)
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(delete-char 1)
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(insert "::"))
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(goto-char (point-max))))
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"text/html")))))
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;;;###autoload
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(defun w3m-perldoc (docname)
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"View Perl documents."
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(interactive "sDocument: ")
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(w3m-goto-url (concat "about://perldoc/" (w3m-url-encode-string docname))))
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(provide 'w3m-perldoc)
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;;; w3m-perldoc.el ends here.
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