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;;; unidecode.el --- Convert Unicode text into safe ASCII strings
;; Copyright (C) 2013 sindikat
;; Author: sindikat <sindikat at mail36 dot net>
;; Version: 0.1
;; Package-Requires: ((cl-lib "0.4"))
;; This file is not part of GNU Emacs.
;; This file is placed in the public domain to the extent possible by law.
;;; Commentary:
;; Transliterate Unicode characters into one of 128 ASCII characters.
;; This package is an Emacs Lisp port of Python Unidecode package.
;; Python Unidecode can be found here:
;; More information in file
;;; Code:
(require 'cl-lib)
(defconst unidecode-chars
(read (find-file-noselect "unidecode-chars.el"))
"Contains vector of unidecoded chars corresponding to Unicode
code point of an original char")
(defun unidecode-unidecode (s)
(apply #'concat (mapcar (lambda (ch) (elt unidecode-chars ch)) s)))
(defun unidecode-sanitize (s)
"Strip all chars from string that are not alphanumeric or
hyphen, convert space to hyphen"
(let ((s (replace-regexp-in-string " " "-" (unidecode-unidecode (downcase s))))
(valid "abcdefghijklmnopqrstuvwxyz1234567890-"))
(cl-remove-if-not (lambda (ch) (cl-find ch valid)) s)))
(provide 'unidecode)
;;; unidecode.el ends here