-;;; pcvs-util.el --- Utitlity functions for pcl-cvs
+;;; pcvs-util.el --- utility functions for PCL-CVS -*- byte-compile-dynamic: t -*-
-;; Copyright (C) 1998-2000 Free Software Foundation, Inc.
+;; Copyright (C) 1991,92,93,94,95,96,97,98,99,2000, 2001
+;; Free Software Foundation, Inc.
;; Author: Stefan Monnier <monnier@cs.yale.edu>
;; Keywords: pcl-cvs
-;; Version: $Name: $
-;; Revision: $Id: pcvs-util.el,v 1.1 2000/08/05 19:33:53 gerd Exp gerd $
+;; Revision: $Id: pcvs-util.el,v 1.15 2001/11/17 00:48:14 monnier Exp $
;; This file is part of GNU Emacs.
;;;;
;;;; list processing
-;;;l
+;;;;
(defsubst cvs-car (x) (if (consp x) (car x) x))
(defalias 'cvs-cdr 'cdr-safe)
(if (funcall p x) (push x car) (push x cdr)))
(cons (nreverse car) (nreverse cdr))))
-;;;;
-;;;; frame, window, buffer handling
-;;;;
+;; Copied from CL ;-(
+
+(defun cvs-butlast (x &optional n)
+ "Returns a copy of LIST with the last N elements removed."
+ (if (and n (<= n 0)) x
+ (cvs-nbutlast (copy-sequence x) n)))
+
+(defun cvs-nbutlast (x &optional n)
+ "Modifies LIST to remove the last N elements."
+ (let ((m (length x)))
+ (or n (setq n 1))
+ (and (< n m)
+ (progn
+ (if (> n 0) (setcdr (nthcdr (- (1- m) n) x) nil))
+ x))))
+
+;;;
+;;; frame, window, buffer handling
+;;;
(defun cvs-pop-to-buffer-same-frame (buf)
"Pop to BUF like `pop-to-buffer' but staying on the same frame.
If `pop-to-buffer' would have opened a new frame, this function would
-try to split the a new window instead."
+try to split a new window instead."
(let ((pop-up-windows (or pop-up-windows pop-up-frames))
(pop-up-frames nil))
(or (let ((buf (get-buffer-window buf))) (and buf (select-window buf)))
(delete-window win)
(error (iconify-frame (window-frame win))))
(if (and mainbuf (get-buffer-window mainbuf))
- (delete-window win)))))
+ ;; FIXME: if the buffer popped into a pre-existing window,
+ ;; we don't want to delete that window.
+ t ;;(delete-window win)
+ ))))
(with-current-buffer buf
(bury-buffer (unless (and (eq buf (window-buffer (selected-window)))
(not (window-dedicated-p (selected-window))))
;;;; string processing
;;;;
+(defun cvs-insert-strings (strings)
+ "Insert a list of STRINGS into the current buffer.
+Uses columns to keep the listing readable but compact."
+ (when (consp strings)
+ (let* ((length (apply 'max (mapcar 'length strings)))
+ (wwidth (1- (window-width)))
+ (columns (min
+ ;; At least 2 columns; at least 2 spaces between columns.
+ (max 2 (/ wwidth (+ 2 length)))
+ ;; Don't allocate more columns than we can fill.
+ ;; Windows can't show less than 3 lines anyway.
+ (max 1 (/ (length strings) 2))))
+ (colwidth (/ wwidth columns)))
+ ;; Use tab-width rather than indent-to.
+ (setq tab-width colwidth)
+ ;; The insertion should be "sensible" no matter what choices were made.
+ (dolist (str strings)
+ (unless (bolp) (insert " \t"))
+ (when (< wwidth (+ (max colwidth (length str)) (current-column)))
+ (delete-char -2) (insert "\n"))
+ (insert str)))))
+
+
(defun cvs-file-to-string (file &optional oneline args)
"Read the content of FILE and return it as a string.
If ONELINE is t, only the first line (no \\n) will be returned.
If ARGS is non-nil, the file will be executed with ARGS as its
arguments. If ARGS is not a list, no argument will be passed."
- (with-temp-buffer
- (condition-case nil
- (progn
- (if args
- (apply 'call-process
- file nil t nil (when (listp args) args))
- (insert-file-contents file))
- (buffer-substring (point-min)
- (if oneline
- (progn (goto-char (point-min)) (end-of-line) (point))
- (point-max))))
- (file-error nil))))
+ (condition-case nil
+ (with-temp-buffer
+ (if args
+ (apply 'call-process
+ file nil t nil (when (listp args) args))
+ (insert-file-contents file))
+ (goto-char (point-min))
+ (buffer-substring (point)
+ (if oneline (line-end-position) (point-max))))
+ (file-error nil)))
(defun cvs-string-prefix-p (str1 str2)
"Tell whether STR1 is a prefix of STR2."
(append (unless (eq i 0) (split-string (substring string 0 i) sep))
(let ((rfs (read-from-string string i)))
(cons (car rfs)
- (cvs-string->strings (substring string (cdr rfs)) sep)))))))
+ (cvs-string->strings (substring string (cdr rfs))
+ sep)))))))
;;;;
;;;; file names
;; sanity check
(unless (< (abs numarg) (length defaults))
- (error "There is no %sth default." (abs numarg)))
+ (error "There is no %sth default" (abs numarg)))
(if permstr
(let* ((prompt (format "%s%s: " desc permstr))
&optional qtypedesc hist-sym)
(let ((cps (cvs-prefix-sym sym)))
`(progn
- (defvar ,sym nil ,(cons (or docstring "") "
+ (defvar ,sym nil ,(concat (or docstring "") "
See `cvs-prefix-set' for further description of the behavior."))
- (defconst ,cps
+ (defvar ,cps
(let ((defaults ,defaults))
;; sanity ensurance
(unless (>= (length defaults) cvs-prefix-number)
(provide 'pcvs-util)
-;;; pcl-cvs-util.el ends here
+;;; pcvs-util.el ends here