X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/d2fc7e3d0f6f57f962cbd94df3bf4fd15a37bb68..c7cf0ebc24d66371c8d48ad72f65e72a2a027f06:/lisp/org/org-compat.el?ds=sidebyside

diff --git a/lisp/org/org-compat.el b/lisp/org/org-compat.el
index efe54c568b..687b81fd88 100644
--- a/lisp/org/org-compat.el
+++ b/lisp/org/org-compat.el
@@ -1,11 +1,10 @@
 ;;; org-compat.el --- Compatibility code for Org-mode
 
-;; Copyright (C) 2004-2011  Free Software Foundation, Inc.
+;; Copyright (C) 2004-2013 Free Software Foundation, Inc.
 
 ;; Author: Carsten Dominik <carsten at orgmode dot org>
 ;; Keywords: outlines, hypermedia, calendar, wp
 ;; Homepage: http://orgmode.org
-;; Version: 7.4
 ;;
 ;; This file is part of GNU Emacs.
 ;;
@@ -35,7 +34,6 @@
 
 (require 'org-macs)
 
-(declare-function find-library-name "find-func"  (library))
 (declare-function w32-focus-frame "term/w32-win" (frame))
 
 ;; The following constant is for backward compatibility.  We do not use
@@ -112,6 +110,7 @@ any other entries, and any resulting duplicates will be removed entirely."
 	    t))
       t)))
 
+
 ;;;; Emacs/XEmacs compatibility
 
 ;; Keys
@@ -170,6 +169,24 @@ If DELETE is non-nil, delete all those overlays."
 	(set-buffer-modified-p modified-p))
     (decompose-region beg end)))
 
+(defmacro org-define-obsolete-function-alias (o-name c-name when &optional doc)
+  "Reconcile the two-argument form of
+`define-obsolete-function-alias' in XEmacs/Emacs 22 with the 3-4
+argument form in Emacs 23 and later."
+  (if (or (featurep 'xemacs)
+	  (< emacs-major-version 23))
+      `(define-obsolete-function-alias ,o-name ,c-name)
+    `(define-obsolete-function-alias ,o-name ,c-name ,when ,doc)))
+
+(defmacro org-define-obsolete-variable-alias (o-name c-name when &optional doc)
+  "Reconcile the two-argument form of
+`define-obsolete-variable-alias' in XEmacs/Emacs 22 with the 3-4
+argument form in Emacs 23 and later."
+  (if (or (featurep 'xemacs)
+	  (< emacs-major-version 23))
+      `(define-obsolete-variable-alias ,o-name ,c-name)
+    `(define-obsolete-variable-alias ,o-name ,c-name ,when ,doc)))
+
 ;; Miscellaneous functions
 
 (defun org-add-hook (hook function &optional append local)
@@ -196,9 +213,8 @@ passed through to `fit-window-to-buffer'.  If SHRINK-ONLY is set, call
 ignored in this case."
   (cond ((if (fboundp 'window-full-width-p)
 	     (not (window-full-width-p window))
-	   (> (frame-width) (window-width window)))
-	 ;; do nothing if another window would suffer
-	 )
+	   ;; do nothing if another window would suffer
+	   (> (frame-width) (window-width window))))
 	((and (fboundp 'fit-window-to-buffer) (not shrink-only))
 	 (fit-window-to-buffer window max-height min-height))
 	((fboundp 'shrink-window-if-larger-than-buffer)
@@ -246,6 +262,18 @@ Works on both Emacs and XEmacs."
 	     (> (point) (region-beginning)))
     (exchange-point-and-mark)))
 
+;; Emacs 22 misses `activate-mark'
+(if (fboundp 'activate-mark)
+    (defalias 'org-activate-mark 'activate-mark)
+  (defun org-activate-mark ()
+    (when (mark t)
+      (setq mark-active t)
+      (when (and (boundp 'transient-mark-mode)
+		 (not transient-mark-mode))
+	(setq transient-mark-mode 'lambda))
+      (when (boundp 'zmacs-regions)
+	(setq zmacs-regions t)))))
+
 ;; Invisibility compatibility
 
 (defun org-remove-from-invisibility-spec (arg)
@@ -263,7 +291,7 @@ Works on both Emacs and XEmacs."
     nil))
 
 (defmacro org-xemacs-without-invisibility (&rest body)
-  "Turn off exents with invisibility while executing BODY."
+  "Turn off extents with invisibility while executing BODY."
   `(let ((ext-inv (extent-list nil (point-at-bol) (point-at-eol)
 			       'all-extents-closed-open 'invisible))
 	 ext-inv-specs)
@@ -276,6 +304,7 @@ Works on both Emacs and XEmacs."
      (dolist (ext-inv-spec ext-inv-specs)
        (set-extent-property (car ext-inv-spec) 'invisible
 			    (cadr ext-inv-spec)))))
+(def-edebug-spec org-xemacs-without-invisibility (body))
 
 (defun org-indent-to-column (column &optional minimum buffer)
   "Work around a bug with extents with invisibility in XEmacs."
@@ -313,20 +342,8 @@ Works on both Emacs and XEmacs."
 	string)
     (apply 'propertize string properties)))
 
-(defun org-substring-no-properties (string &optional from to)
-  (if (featurep 'xemacs)
-      (org-no-properties (substring string (or from 0) to))
-    (substring-no-properties string from to)))
-
-(defun org-find-library-name (library)
-  (if (fboundp 'find-library-name)
-      (file-name-directory (find-library-name library))
-    ; XEmacs does not have `find-library-name'
-    (flet ((find-library-name-helper (filename ignored-codesys)
-				     filename)
-	   (find-library-name (library)
-	    (find-library library nil 'find-library-name-helper)))
-      (file-name-directory (find-library-name library)))))
+(defmacro org-find-library-dir (library)
+  `(file-name-directory (or (locate-library ,library) "")))
 
 (defun org-count-lines (s)
   "How many lines in string S?"
@@ -371,6 +388,20 @@ TIME defaults to the current time."
       (time-to-seconds (or time (current-time)))
     (float-time time)))
 
+;; `user-error' is only available from 24.2.50 on
+(unless (fboundp 'user-error)
+  (defalias 'user-error 'error))
+
+(defmacro org-no-popups (&rest body)
+  "Suppress popup windows.
+Let-bind some variables to nil around BODY to achieve the desired
+effect, which variables to use depends on the Emacs version."
+    (if (org-version-check "24.2.50" "" :predicate)
+	`(let (pop-up-frames display-buffer-alist)
+	   ,@body)
+      `(let (pop-up-frames special-display-buffer-names special-display-regexps special-display-function)
+	 ,@body)))
+
 (if (fboundp 'string-match-p)
     (defalias 'org-string-match-p 'string-match-p)
   (defun org-string-match-p (regexp string &optional start)
@@ -383,7 +414,7 @@ TIME defaults to the current time."
     (save-match-data
       (apply 'looking-at args))))
 
-; XEmacs does not have `looking-back'.
+;; XEmacs does not have `looking-back'.
 (if (fboundp 'looking-back)
     (defalias 'org-looking-back 'looking-back)
   (defun org-looking-back (regexp &optional limit greedy)
@@ -423,7 +454,64 @@ With two arguments, return floor and remainder of their quotient."
   (let ((q (floor x y)))
     (list q (- x (if y (* y q) q)))))
 
-(provide 'org-compat)
+;; `pop-to-buffer-same-window' has been introduced in Emacs 24.1.
+(defun org-pop-to-buffer-same-window
+  (&optional buffer-or-name norecord label)
+  "Pop to buffer specified by BUFFER-OR-NAME in the selected window."
+  (if (fboundp 'pop-to-buffer-same-window)
+      (funcall
+       'pop-to-buffer-same-window buffer-or-name norecord)
+    (funcall 'switch-to-buffer buffer-or-name norecord)))
+
+;; `condition-case-unless-debug' has been introduced in Emacs 24.1
+;; `condition-case-no-debug' has been introduced in Emacs 23.1
+(defmacro org-condition-case-unless-debug (var bodyform &rest handlers)
+  (declare (debug condition-case) (indent 2))
+  (or (and (fboundp 'condition-case-unless-debug)
+	   `(condition-case-unless-debug ,var ,bodyform ,@handlers))
+      (and (fboundp 'condition-case-no-debug)
+	   `(condition-case-no-debug ,var ,bodyform ,@handlers))
+      `(condition-case ,var ,bodyform ,@handlers)))
+
+;; RECURSIVE has been introduced with Emacs 23.2.
+;; This is copying and adapted from `tramp-compat-delete-directory'
+(defun org-delete-directory (directory &optional recursive)
+  "Compatibility function for `delete-directory'."
+  (if (null recursive)
+      (delete-directory directory)
+    (condition-case nil
+	(funcall 'delete-directory directory recursive)
+      ;; This Emacs version does not support the RECURSIVE flag.  We
+      ;; use the implementation from Emacs 23.2.
+      (wrong-number-of-arguments
+       (setq directory (directory-file-name (expand-file-name directory)))
+       (if (not (file-symlink-p directory))
+	   (mapc (lambda (file)
+		   (if (eq t (car (file-attributes file)))
+		       (org-delete-directory file recursive)
+		     (delete-file file)))
+		 (directory-files
+		  directory 'full "^\\([^.]\\|\\.\\([^.]\\|\\..\\)\\).*")))
+       (delete-directory directory)))))
+
+;;;###autoload
+(defmacro org-check-version ()
+  "Try very hard to provide sensible version strings."
+  (let* ((org-dir        (org-find-library-dir "org"))
+	 (org-version.el (concat org-dir "org-version.el"))
+	 (org-fixup.el   (concat org-dir "../mk/org-fixup.el")))
+    (if (require 'org-version org-version.el 'noerror)
+	'(progn
+	   (autoload 'org-release     "org-version.el")
+	   (autoload 'org-git-version "org-version.el"))
+      (if (require 'org-fixup org-fixup.el 'noerror)
+	  '(org-fixup)
+	;; provide fallback definitions and complain
+	(warn "Could not define org version correctly.  Check installation!")
+	'(progn
+	   (defun org-release () "N/A")
+	   (defun org-git-version () "N/A !!check installation!!"))))))
 
+(provide 'org-compat)
 
 ;;; org-compat.el ends here