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-;;; muse-regexps.el --- define regexps used by Muse
-
-;; Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010
-;; Free Software Foundation, Inc.
-
-;; This file is part of Emacs Muse. It is not part of GNU Emacs.
-
-;; Emacs Muse 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 3, or (at your
-;; option) any later version.
-
-;; Emacs Muse 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 Emacs Muse; see the file COPYING. If not, write to the
-;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-;; Boston, MA 02110-1301, USA.
-
-;;; Commentary:
-
-;; This file is the part of the Muse project that describes regexps
-;; that are used throughout the project.
-
-;;; Contributors:
-
-;;; Code:
-
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;;
-;; Muse Regular Expressions
-;;
-;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-
-(defgroup muse-regexp nil
- "Regular expressions used in publishing and syntax highlighting."
- :group 'muse)
-
-;;; Deal with the lack of character classes for regexps in Emacs21 and
-;;; XEmacs
-
-(defcustom muse-regexp-use-character-classes 'undecided
- "Indicate whether to use extended character classes like [:space:].
-If 'undecided, Muse will use them if your emacs is known to support them.
-
-Emacs 22 and Emacs 21.3.50 are known to support them. XEmacs
-does not support them.
-
-Emacs 21.2 or higher support them, but with enough annoying edge
-cases that the sanest default is to leave them disabled."
- :type '(choice (const :tag "Yes" t)
- (const :tag "No" nil)
- (const :tag "Let Muse decide" undecided))
- :group 'muse-regexp)
-
-(defvar muse-regexp-emacs-revision
- (save-match-data
- (and (string-match "^[0-9]+\\.[0-9]+\\.\\([0-9]+\\)"
- emacs-version)
- (match-string 1 emacs-version)
- (string-to-number (match-string 1 emacs-version))))
- "The revision number of this version of Emacs.")
-
-(defun muse-extreg-usable-p ()
- "Return non-nil if extended character classes can be used,
-nil otherwise.
-
-This is used when deciding the initial values of the muse-regexp
-options."
- (cond
- ((eq muse-regexp-use-character-classes t)
- t)
- ((eq muse-regexp-use-character-classes nil)
- nil)
- ((featurep 'xemacs) nil) ; unusable on XEmacs
- ((> emacs-major-version 21) t) ; usable if > 21
- ((< emacs-major-version 21) nil)
- ((< emacs-minor-version 3) nil)
- ;; don't use if version is of format 21.x
- ((null muse-regexp-emacs-revision) nil)
- ;; only trust 21.3.50 or higher
- ((>= muse-regexp-emacs-revision 50) t)
- (t nil)))
-
-(defcustom muse-regexp-blank
- (if (muse-extreg-usable-p)
- "[:blank:]"
- " \t")
- "Regexp to use in place of \"[:blank:]\".
-This should be something that matches spaces and tabs.
-
-It is like a regexp, but should be embeddable inside brackets.
-Muse will detect the appropriate value correctly most of
-the time."
- :type 'string
- :options '("[:blank:]" " \t")
- :group 'muse-regexp)
-
-(defcustom muse-regexp-alnum
- (if (muse-extreg-usable-p)
- "[:alnum:]"
- "A-Za-z0-9")
- "Regexp to use in place of \"[:alnum:]\".
-This should be something that matches all letters and numbers.
-
-It is like a regexp, but should be embeddable inside brackets.
-muse will detect the appropriate value correctly most of
-the time."
- :type 'string
- :options '("[:alnum:]" "A-Za-z0-9")
- :group 'muse-regexp)
-
-(defcustom muse-regexp-lower
- (if (muse-extreg-usable-p)
- "[:lower:]"
- "a-z")
- "Regexp to use in place of \"[:lower:]\".
-This should match all lowercase characters.
-
-It is like a regexp, but should be embeddable inside brackets.
-muse will detect the appropriate value correctly most of
-the time."
- :type 'string
- :options '("[:lower:]" "a-z")
- :group 'muse-regexp)
-
-(defcustom muse-regexp-upper
- (if (muse-extreg-usable-p)
- "[:upper:]"
- "A-Z")
- "Regexp to use in place of \"[:upper:]\".
-This should match all uppercase characters.
-
-It is like a regexp, but should be embeddable inside brackets.
-muse will detect the appropriate value correctly most of
-the time."
- :type 'string
- :options '("[:upper:]" "A-Z")
- :group 'muse-regexp)
-
-;;; Regexps used to define Muse publishing syntax
-
-(defcustom muse-list-item-regexp
- (concat "^%s\\(\\([^\n" muse-regexp-blank "].*?\\)?::"
- "\\(?:[" muse-regexp-blank "]+\\|$\\)"
- "\\|[" muse-regexp-blank "]-[" muse-regexp-blank "]*"
- "\\|[" muse-regexp-blank "][0-9]+\\.[" muse-regexp-blank "]*\\)")
- "Regexp used to match the beginning of a list item.
-The '%s' will be replaced with a whitespace regexp when publishing."
- :type 'regexp
- :group 'muse-regexp)
-
-(defcustom muse-ol-item-regexp (concat "\\`[" muse-regexp-blank "]+[0-9]+\\.")
- "Regexp used to match an ordered list item."
- :type 'regexp
- :group 'muse-regexp)
-
-(defcustom muse-ul-item-regexp (concat "\\`[" muse-regexp-blank "]+-")
- "Regexp used to match an unordered list item."
- :type 'regexp
- :group 'muse-regexp)
-
-(defcustom muse-dl-term-regexp
- (concat "[" muse-regexp-blank "]*\\(.+?\\)["
- muse-regexp-blank "]+::\\(?:[" muse-regexp-blank "]+\\|$\\)")
- "Regexp used to match a definition list term.
-The first match string must contain the term."
- :type 'regexp
- :group 'muse-regexp)
-
-(defcustom muse-dl-entry-regexp (concat "\\`[" muse-regexp-blank "]*::")
- "Regexp used to match a definition list entry."
- :type 'regexp
- :group 'muse-regexp)
-
-(defcustom muse-table-field-regexp
- (concat "[" muse-regexp-blank "]+\\(|+\\)\\(?:["
- muse-regexp-blank "]\\|$\\)")
- "Regexp used to match table separators when publishing."
- :type 'regexp
- :group 'muse-regexp)
-
-(defcustom muse-table-line-regexp (concat ".*" muse-table-field-regexp ".*")
- "Regexp used to match a table line when publishing."
- :type 'regexp
- :group 'muse-regexp)
-
-(defcustom muse-table-hline-regexp (concat "[" muse-regexp-blank
- "]*|[-+]+|[" muse-regexp-blank
- "]*")
- "Regexp used to match a horizontal separator line in a table."
- :type 'regexp
- :group 'muse-regexp)
-
-(defcustom muse-table-el-border-regexp (concat "[" muse-regexp-blank "]*"
- "\\+\\(-*\\+\\)+"
- "[" muse-regexp-blank "]*")
- "Regexp used to match the beginning and end of a table.el-style table."
- :type 'regexp
- :group 'muse-regexp)
-
-(defcustom muse-table-el-line-regexp (concat "[" muse-regexp-blank "]*"
- "|\\(.*|\\)*"
- "[" muse-regexp-blank "]*")
- "Regexp used to match a table line of a table.el-style table."
- :type 'regexp
- :group 'muse-regexp)
-
-(defcustom muse-tag-regexp
- (concat "<\\([^/" muse-regexp-blank "\n][^" muse-regexp-blank
- "</>\n]*\\)\\(\\s-+[^<>]+[^</>\n]\\)?\\(/\\)?>")
- "A regexp used to find XML-style tags within a buffer when publishing.
-Group 1 should be the tag name, group 2 the properties, and group
-3 the optional immediate ending slash."
- :type 'regexp
- :group 'muse-regexp)
-
-(defcustom muse-explicit-link-regexp
- "\\[\\[\\([^][\n]+\\)\\]\\(?:\\[\\([^][\n]+\\)\\]\\)?\\]"
- "Regexp used to match [[target][description]] links.
-Paren group 1 must match the URL, and paren group 2 the description."
- :type 'regexp
- :group 'muse-regexp)
-
-(defcustom muse-implicit-link-regexp
- (concat "\\([^" muse-regexp-blank "\n]+\\)")
- "Regexp used to match an implicit link.
-An implicit link is the largest block of text to be checked for
-URLs and bare WikiNames by the `muse-link-at-point' function.
-Paren group 1 is the text to be checked.
-
-URLs are checked by default. To get WikiNames, load
-muse-wiki.el.
-
-This is only used when you are using muse-mode.el, but not
-muse-colors.el.
-
-If the above applies, and you want to match things with spaces in
-them, you will have to modify this."
- :type 'regexp
- :group 'muse-regexp)
-
-;;; Regexps used to determine file types
-
-(defcustom muse-file-regexp
- (concat "\\`[~/]\\|\\?\\|/\\'\\|\\."
- "\\(html?\\|pdf\\|mp3\\|el\\|zip\\|txt\\|tar\\)"
- "\\(\\.\\(gz\\|bz2\\)\\)?\\'")
- "A link matching this regexp will be regarded as a link to a file."
- :type 'regexp
- :group 'muse-regexp)
-
-(defcustom muse-image-regexp
- "\\.\\(eps\\|gif\\|jp\\(e?g\\)\\|p\\(bm\\|ng\\)\\|tiff\\|x\\([bp]m\\)\\)\\'"
- "A link matching this regexp will be published inline as an image.
-For example:
-
- [[./wife.jpg][A picture of my wife]]
-
-If you omit the description, the alt tag of the resulting HTML
-buffer will be the name of the file."
- :type 'regexp
- :group 'muse-regexp)
-
-(provide 'muse-regexps)
-
-;;; muse-regexps.el ends here