*.el -> lisp/*.el: Move lisp files into "lisp/" subdirectory.

1 files changed, 164 insertions, 0 deletions

diff --git a/lisp/emms-i18n.el b/lisp/emms-i18n.el
new file mode 100644
index 0000000..ac54eff
--- /dev/null
+++ b/lisp/emms-i18n.el
@@ -0,0 +1,164 @@
+;;; emms-i18n.el --- Function for handling coding system
+
+;; Copyright (C) 2006, 2007 Free Software Foundation, Inc.
+;;
+;; Author: Ye Wenbin <wenbinye@163.com>
+
+;; This file is part of EMMS.
+
+;; 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 3, 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 this program; if not, write to the Free Software
+;; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+;;; Commentary:
+
+;; When read from process, first check the CAR part of
+;; `emms-i18n-default-coding-system', if non-nil, use this for decode, and
+;; nerver detect coding system, if nil, first call
+;; `emms-i18n-coding-dectect-functions' to get coding system, if success,
+;; decode the result, otherwise, use `emms-i18n-detect-coding-function',
+;; the emacs detect coding function, if the coding detected is not in
+;; `emms-i18n-nerver-used-coding-system', decode it, otherwise use
+;; locale-coding-system.
+;;
+;; When write send data to process, first check the CDR part of
+;; `emms-i18n-default-coding-system', if non-nil, use this to encode data,
+;; otherwise do nothing, that means use `default-process-coding-system' or
+;; `process-coding-system-alist' to encode data.
+
+;; Put this file into your load-path and the following into your ~/.emacs:
+;;   (require 'emms-i18n)
+
+;;; Code:
+
+(provide 'emms-i18n)
+(eval-when-compile
+  (require 'cl))
+
+;; TODO: Change these to use defcustom
+
+(defvar emms-i18n-nerver-used-coding-system
+  '(raw-text undecided)
+  "If the `emms-i18n-coding-dectect-functions' return coding system in
+this list, use `emms-i18n-default-coding-system' instead.")
+
+(defvar emms-i18n-coding-system-for-read 'utf-8
+  "If coding detect failed, use this for decode")
+
+(defvar emms-i18n-default-coding-system nil
+  "If non-nil, used for decode and encode")
+
+(defvar emms-i18n-coding-dectect-functions nil
+  "A list of function to call to detect codings")
+
+(defvar emms-i18n-detect-max-size 10000
+  "Max bytes to detect coding system. Nil mean scan whole buffer.")
+
+(defun emms-i18n-iconv (from to str)
+  "Convert STR from FROM coding to TO coding."
+  (if (and from to)
+      (decode-coding-string
+       (encode-coding-string str to)
+       from)
+    str))
+
+(defun emms-i18n-iconv-region (beg end from to)
+  (when (and from to)
+    (save-restriction
+      (narrow-to-region beg end)
+      (encode-coding-region (point-min) (point-max) to)
+      (decode-coding-region (point-min) (point-max) from))))
+
+(defun emms-i18n-iconv-buffer (from to &optional buf)
+  (save-excursion
+    (and buf (set-buffer buf))
+    (emms-i18n-iconv-region (point-min) (point-max) from to)))
+
+(defun emms-i18n-set-default-coding-system (read-coding write-coding)
+  "Set `emms-i18n-default-coding-system'"
+  (interactive "zSet coding system for read: \nzSet coding system for write: ")
+  (setq emms-i18n-default-coding-system
+        (cons
+         (and (coding-system-p read-coding) read-coding)
+         (and (coding-system-p write-coding) write-coding)))
+  (message (concat
+            (if (car emms-i18n-default-coding-system)
+                (format "The coding system for read is %S." (car emms-i18n-default-coding-system))
+              "Good, you want detect coding system by me!")
+            (format " The coding system for write is %S."
+                    (or (cdr emms-i18n-default-coding-system)
+                        (cdr default-process-coding-system))))))
+
+(defun emms-i18n-call-process-simple (&rest args)
+  "This function run program and return the program result. If the CAR
+part of `emms-i18n-default-coding-system' is non-nil, the program result will
+be decode use the CAR part of emms-i18n-default-coding-system. Otherwise,
+use `emms-i18n-coding-dectect-functions' to detect the coding system of the
+result. If the emms-i18n-coding-dectect-functions failed, use
+`emms-i18n-detect-coding-function' to detect coding system. If all the
+coding system is nil or in `emms-i18n-nerver-used-coding-system', decode
+the result using `emms-i18n-coding-system-for-read'.
+
+The rest arguments ARGS is as the same as `call-process', except the
+BUFFER should always have value t. Otherwise the coding detection will
+not perform."
+  (let ((default-process-coding-system (copy-tree default-process-coding-system))
+        (process-coding-system-alist nil) exit pos)
+    (when (eq (nth 2 args) 't)
+      (setcar default-process-coding-system (car emms-i18n-default-coding-system))
+      (setq pos (point)))
+    (setq exit (apply 'call-process args))
+    (when (and (eq (nth 2 args) 't)
+               (null (car emms-i18n-default-coding-system)))
+      (save-restriction
+        (narrow-to-region pos (point))
+        (decode-coding-region (point-min) (point-max) (emms-i18n-detect-buffer-coding-system))))
+    exit))
+
+;; Is this function useful?
+(defun emms-i18n-call-process (&rest args)
+  "Run the program like `call-process'. If
+the cdr part `emms-i18n-default-coding-system' is non-nil, the string in
+ARGS will be encode by the CDR part of `emms-i18n-default-coding-system',
+otherwise, it is pass all parameter to `call-process'."
+  (with-temp-buffer
+    (if (cdr emms-i18n-default-coding-system)
+        (let ((default-process-coding-system emms-i18n-default-coding-system)
+              (process-coding-system-alist nil))
+          (apply 'call-process args))
+      (apply 'call-process args))))
+
+(defun emms-i18n-detect-coding-function (size)
+  (detect-coding-region (point)
+                        (+ (if (null emms-i18n-detect-max-size)
+                               size
+                             (min size emms-i18n-detect-max-size))
+                           (point)) t))
+
+(defun emms-i18n-detect-buffer-coding-system (&optional buf)
+  "Before call this function, make sure the buffer is literal"
+  (let ((size (- (point-max) (point-min)))
+        (func (append emms-i18n-coding-dectect-functions 'emms-i18n-detect-coding-function))
+        coding)
+    (save-excursion
+      (and buf (set-buffer buf))
+      (goto-char (point-min))
+      (when (> size 0)
+        (setq coding (run-hook-with-args-until-success 'func size))
+        (if (member (coding-system-base coding) emms-i18n-nerver-used-coding-system)
+            (setq coding (emms-i18n-detect-coding-function size))))
+      (if (or (null coding) (member (coding-system-base coding) emms-i18n-nerver-used-coding-system))
+          emms-i18n-coding-system-for-read
+        coding))))
+
+;;; emms-i18n.el ends here