;;; filename.el --- file name filter
-;; Copyright (C) 1996 MORIOKA Tomohiko
+;; Copyright (C) 1996,1997 MORIOKA Tomohiko
;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
-;; Version: $Id: filename.el,v 1.1 1996/12/16 13:42:14 morioka Exp $
-;; Keywords: string, file name
+;; Version: $Id: filename.el,v 2.1 1997/11/06 15:50:53 morioka Exp $
+;; Keywords: file name, string
-;; This file is part of tl (Tiny Library).
+;; 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
;;; Code:
-(require 'tl-list)
-(require 'tl-str)
+(require 'emu) ; for backward compatibility.
+(require 'poe) ; functionp.
+(require 'poem) ; char-int, and char-length.
+(require 'path-util)
+
+(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)
+(defvar filename-limit-length 21 "Limit size of file-name.")
(defvar filename-replacement-alist
- (list
- (cons (string-to-char-list " \t") "_")
- (cons (string-to-char-list (expand-char-ranges "!-*,/:;<>?[-^`{-~")) "_")
- '(filename-control-p . "")
- ))
+ '(((?\ ?\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
- (nconc
- (and (file-installed-p "kakasi" exec-path)
- '(filename-japanese-to-roman-string)
- )
- '(filename-special-filter
- filename-eliminate-top-low-lines
- filename-canonicalize-low-lines
- filename-maybe-truncate-by-size
- filename-eliminate-bottom-low-lines
- )))
+ (let ((filters '(filename-special-filter
+ filename-eliminate-top-low-lines
+ filename-canonicalize-low-lines
+ filename-maybe-truncate-by-size
+ filename-eliminate-bottom-low-lines
+ )))
+ (if (exec-installed-p "kakasi")
+ (cons 'filename-japanese-to-roman-string filters)
+ filters))
+ "List of functions for file-name filter.")
;;; @ filters
(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)
- ))
+ (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))
- ))
+ (or (< code 32)(= code 127))))
(defun filename-special-filter (string)
- (let (dest
- (i 0)
- (len (length string))
- (b 0)
- )
+ (let ((len (length string))
+ (b 0)(i 0)
+ (dest ""))
(while (< i len)
- (let* ((chr (sref string i))
- (ret (ASSOC chr filename-replacement-alist
- :test (function
- (lambda (chr key)
- (if (functionp key)
- (funcall key chr)
- (memq chr key)
- )
- ))))
- )
+ (let ((chr (sref string i))
+ (lst filename-replacement-alist)
+ ret)
+ (while (and lst (not ret))
+ (if (if (functionp (car (car lst)))
+ (setq ret (funcall (car (car lst)) chr))
+ (setq ret (memq chr (car (car lst)))))
+ t ; quit this loop.
+ (setq lst (cdr lst))))
(if ret
- (setq dest (concat dest (substring string b i)(cdr ret))
+ (setq dest (concat dest (substring string b i)(cdr (car lst)))
i (+ i (char-length chr))
b i)
- (setq i (+ i (char-length chr)))
- )))
- (concat dest (substring string b))
- ))
+ (setq i (+ i (char-length chr))))))
+ (concat dest (substring string b))))
(defun filename-eliminate-top-low-lines (string)
(if (string-match "^_+" string)
string))
(defun filename-canonicalize-low-lines (string)
- (let (dest)
+ (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)
- ))
+ (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)
- )
+ (string-match "_" string filename-limit-length))
(substring string 0 (match-beginning 0))
string))
;;;
(defun replace-as-filename (string)
- "Return safety filename from STRING. [filename.el]"
- (poly-funcall filename-filters 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)
+(require 'product)
+(product-provide (provide 'filename) (require 'apel-ver))
;;; filename.el ends here
projects / elisp / apel.git / blobdiff