Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
Fetching contributors…

Cannot retrieve contributors at this time

163 lines (130 sloc) 4.278 kb
;;; filename.el --- file name filter
;; Copyright (C) 1996,1997 MORIOKA Tomohiko
;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
;; Version: $Id$
;; Keywords: file name, string
;; This file is part of APEL (A Portable Emacs Library).
;; 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, 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 GNU Emacs; see the file COPYING. If not, write to the
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
;;; Code:
(require 'emu)
(require 'cl)
(defsubst poly-funcall (functions argument)
"Apply initial ARGUMENT to sequence of FUNCTIONS.
FUNCTIONS is list of functions.
(poly-funcall '(f1 f2 .. fn) arg) is as same as
(fn .. (f2 (f1 arg)) ..).
For example, (poly-funcall '(car number-to-string) '(100)) returns
\"100\"."
(while functions
(setq argument (funcall (car functions) argument)
functions (cdr functions))
)
argument)
;;; @ variables
;;;
(defvar filename-limit-length 21 "Limit size of file-name.")
(defvar filename-replacement-alist
'(((?\ ?\t) . "_")
((?! ?\" ?# ?$ ?% ?& ?' ?\( ?\) ?* ?/
?: ?\; ?< ?> ?? ?\[ ?\\ ?\] ?` ?{ ?| ?}) . "_")
(filename-control-p . "")
)
"Alist list of characters vs. string as replacement.
List of characters represents characters not allowed as file-name.")
(defvar filename-filters
(let ((filters '(filename-special-filter
filename-eliminate-top-low-lines
filename-canonicalize-low-lines
filename-maybe-truncate-by-size
filename-eliminate-bottom-low-lines
)))
(require 'file-detect)
(if (exec-installed-p "kakasi")
(cons 'filename-japanese-to-roman-string filters)
filters))
"List of functions for file-name filter.")
;;; @ filters
;;;
(defun filename-japanese-to-roman-string (str)
(save-excursion
(set-buffer (get-buffer-create " *temp kakasi*"))
(erase-buffer)
(insert str)
(call-process-region (point-min)(point-max) "kakasi" t t t
"-Ha" "-Ka" "-Ja" "-Ea" "-ka")
(buffer-string)
))
(defun filename-control-p (character)
(let ((code (char-int character)))
(or (< code 32)(= code 127))
))
(defun filename-special-filter (string)
(let (dest
(i 0)
(len (length string))
(b 0)
)
(while (< i len)
(let* ((chr (sref string i))
(ret (assoc-if (function
(lambda (key)
(if (functionp key)
(funcall key chr)
(memq chr key)
)))
filename-replacement-alist))
)
(if ret
(setq dest (concat dest (substring string b i)(cdr ret))
i (+ i (char-length chr))
b i)
(setq i (+ i (char-length chr)))
)))
(concat dest (substring string b))
))
(defun filename-eliminate-top-low-lines (string)
(if (string-match "^_+" string)
(substring string (match-end 0))
string))
(defun filename-canonicalize-low-lines (string)
(let (dest)
(while (string-match "__+" string)
(setq dest (concat dest (substring string 0 (1+ (match-beginning 0)))))
(setq string (substring string (match-end 0)))
)
(concat dest string)
))
(defun filename-maybe-truncate-by-size (string)
(if (and (> (length string) filename-limit-length)
(string-match "_" string filename-limit-length)
)
(substring string 0 (match-beginning 0))
string))
(defun filename-eliminate-bottom-low-lines (string)
(if (string-match "_+$" string)
(substring string 0 (match-beginning 0))
string))
;;; @ interface
;;;
(defun replace-as-filename (string)
"Return safety filename from STRING.
It refers variable `filename-filters' and default filters refers
`filename-limit-length', `filename-replacement-alist'."
(and string
(poly-funcall filename-filters string)
))
;;; @ end
;;;
(provide 'filename)
;;; filename.el ends here
Jump to Line
Something went wrong with that request. Please try again.