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Use the existing C-level line number cache within #'line-number. src/ChangeLog addition: 2015-05-15 Aidan Kehoe <kehoea@parhasard.net> * buffer.c: * buffer.c (Fline_number): New C implementation, using the line number cache of line-number.c, with a new optional BUFFER argument. * buffer.c (syms_of_buffer): Make it available to Lisp. * line-number.c (buffer_line_number): New argument, RESPECT-NARROWING, describing whether to count from the beginning of the visible region or from the beginning of the buffer. * line-number.h: * line-number.h (buffer_line_number): Update its declaration. * redisplay.c (window_line_number): Call it with the new argument. lisp/ChangeLog addition: 2015-05-15 Aidan Kehoe <kehoea@parhasard.net> * simple.el: * simple.el (line-number): Moved to buffer.c; we have an existing line number cache in C, it's a shame not to have it available.
author Aidan Kehoe <kehoea@parhasard.net>
date Fri, 15 May 2015 18:11:47 +0100
parents 071b810ceb18
children
line wrap: on
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;; Copyright (C) 1998 Free Software Foundation, Inc.

;; Author: Martin Buchholz <martin@xemacs.org>
;; Maintainer: Martin Buchholz <martin@xemacs.org>
;; Created: 1998
;; Keywords: tests, database

;; This file is part of XEmacs.

;; XEmacs 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 of the License, or (at your
;; option) any later version.

;; XEmacs 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 XEmacs.  If not, see <http://www.gnu.org/licenses/>.

;;; Synched up with: Not in FSF.

;;; Commentary:

;;; Test database functionality
;;; See test-harness.el

(condition-case nil
    (require 'test-harness)
  (file-error
   (when (and (boundp 'load-file-name) (stringp load-file-name))
     (push (file-name-directory load-file-name) load-path)
     (require 'test-harness))))

(labels ((delete-database-files (filename)
           (dolist (fn (list filename
                             (concat filename ".db")
                             (concat filename ".pag")
                             (concat filename ".dir")))
             (ignore-file-errors (delete-file fn))))

       (test-database (db)
	(Assert (databasep db))
	(put-database "key1" "val1" db)
	(Assert (equal "val1" (get-database "key1" db)))
	(remove-database "key1" db)
	(Assert (equal nil (get-database "key1" db)))
	(close-database db)
	(Assert (not (database-live-p db)))
	(Assert (databasep db))))

  (let ((filename (expand-file-name "test-harness" (temp-directory))))

    (dolist (db-type '(dbm berkeley-db))
      (when (featurep db-type)
	(princ "\n")
	(delete-database-files filename)
	(test-database (open-database filename db-type))
	(delete-database-files filename)))))