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view src/elisp/urweb-compat.el @ 1828:05e3365292cd
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author | Adam Chlipala <adam@chlipala.net> |
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date | Sat, 20 Oct 2012 13:51:46 -0400 |
parents | 3a1e36b14105 |
children |
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;;; urweb-compat.el --- Compatibility functions for Emacs variants for urweb-mode ;; Based on sml-mode: ;; Copyright (C) 1999, 2000, 2004 Stefan Monnier <monnier@gnu.org> ;; ;; Modified for urweb-mode: ;; Copyright (C) 2008 Adam Chlipala <adamc@hcoop.net> ;; ;; This program 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 of the License, or ;; (at your option) any later version. ;; ;; This program 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 this program; if not, write to the Free Software ;; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. ;;; Commentary: ;;; Code: (require 'cl) (unless (fboundp 'set-keymap-parents) (defun set-keymap-parents (m parents) (if (keymapp parents) (setq parents (list parents))) (set-keymap-parent m (if (cdr parents) (reduce (lambda (m1 m2) (let ((m (copy-keymap m1))) (set-keymap-parent m m2) m)) parents :from-end t) (car parents))))) ;; for XEmacs (when (fboundp 'temp-directory) (defvar temporary-file-directory (temp-directory))) (unless (fboundp 'make-temp-file) ;; Copied from Emacs-21's subr.el (defun make-temp-file (prefix &optional dir-flag) "Create a temporary file. The returned file name (created by appending some random characters at the end of PREFIX, and expanding against `temporary-file-directory' if necessary, is guaranteed to point to a newly created empty file. You can then use `write-region' to write new data into the file. If DIR-FLAG is non-nil, create a new empty directory instead of a file." (let (file) (while (condition-case () (progn (setq file (make-temp-name (expand-file-name prefix temporary-file-directory))) (if dir-flag (make-directory file) (write-region "" nil file nil 'silent)) nil) (file-already-exists t)) ;; the file was somehow created by someone else between ;; `make-temp-name' and `write-region', let's try again. nil) file))) (unless (fboundp 'regexp-opt) (defun regexp-opt (strings &optional paren) (let ((open (if paren "\\(" "")) (close (if paren "\\)" ""))) (concat open (mapconcat 'regexp-quote strings "\\|") close)))) ;;;; ;;;; Custom ;;;; ;; doesn't exist in Emacs < 20.1 (unless (fboundp 'set-face-bold-p) (defun set-face-bold-p (face v &optional f) (when v (ignore-errors (make-face-bold face))))) (unless (fboundp 'set-face-italic-p) (defun set-face-italic-p (face v &optional f) (when v (ignore-errors (make-face-italic face))))) ;; doesn't exist in Emacs < 20.1 (ignore-errors (require 'custom)) (unless (fboundp 'defgroup) (defmacro defgroup (&rest rest) ())) (unless (fboundp 'defcustom) (defmacro defcustom (sym val str &rest rest) `(defvar ,sym ,val ,str))) (unless (fboundp 'defface) (defmacro defface (sym val str &rest rest) `(defvar ,sym (make-face ',sym) ,str))) (defvar :group ':group) (defvar :type ':type) (defvar :copy ':copy) (defvar :dense ':dense) (defvar :inherit ':inherit) (defvar :suppress ':suppress) (provide 'urweb-compat) ;;; urweb-compat.el ends here