diff --git a/lisp/international/titdic-cnv.el b/lisp/international/titdic-cnv.el
index 2ce2c527b9..54d9fc6211 100644
--- a/lisp/international/titdic-cnv.el
+++ b/lisp/international/titdic-cnv.el
@@ -1203,6 +1203,37 @@ batch-miscdic-convert
 	(miscdic-convert filename dir))))
   (kill-emacs 0))
 
+(defun pinyin-convert ()
+  "Convert text file pinyin.map into an elisp library.
+The library is named pinyin.el, and contains the constant
+`pinyin-character-map'."
+  (let ((src-file (car command-line-args-left))
+        (dst-file (cadr command-line-args-left)))
+    (with-temp-file dst-file
+      (insert ";; This file is automatically generated from pinyin.map,\
+ by the function pinyin-convert.")
+      (insert "(defconst pinyin-character-map\n(")
+      (let ((pos (point)))
+        (insert-file-contents src-file)
+        (goto-char pos)
+        (re-search-forward "^[a-z]")
+        (beginning-of-line)
+        (delete-region pos (point))
+        (while (not (eobp))
+          (insert "(\"")
+          (skip-chars-forward "a-z")
+          (insert "\" \"")
+          (delete-char 1)
+          (end-of-line)
+          (while (= (preceding-char) ?\r)
+	    (delete-char -1))
+          (insert "\")")
+          (forward-line 1)))
+      (insert ")\n\"An alist holding correspondences between pinyin syllables\
+ and Chinese characters.\")\n")
+      (insert "(provide 'pinyin)\n"))
+    (kill-emacs 0)))
+
 ;; Prevent "Local Variables" above confusing Emacs.