Commit 0e86dca1 authored by Kenichi Handa's avatar Kenichi Handa
Browse files

(translate-region): Implement it in Lisp

as a front end of translate-region-internal.
parent 365d1467
...@@ -2015,6 +2015,34 @@ the table in `translation-table-vector'." ...@@ -2015,6 +2015,34 @@ the table in `translation-table-vector'."
(put symbol 'translation-table-id id) (put symbol 'translation-table-id id)
id)) id))
(defun translate-region (start end table)
"From START to END, translate characters according to TABLE.
TABLE is a string or a char-table.
If TABLE is a string, the Nth character in it is the mapping
for the character with code N.
If TABLE is a char-table, the element for character N is the mapping
for the character with code N.
It returns the number of characters changed."
(interactive
(list (region-beginning)
(region-end)
(let (table l)
(dotimes (i (length translation-table-vector))
(if (consp (aref translation-table-vector i))
(push (list (symbol-name
(car (aref translation-table-vector i)))) l)))
(if (not l)
(error "No translation table defined"))
(while (not table)
(setq table (completing-read "Translation table: " l nil t)))
(intern table))))
(if (symbolp table)
(let ((val (get table 'translation-table)))
(or (char-table-p val)
(error "Invalid translation table name: %s" table))
(setq table val)))
(translate-region-internal start end table))
(put 'with-category-table 'lisp-indent-function 1) (put 'with-category-table 'lisp-indent-function 1)
(defmacro with-category-table (table &rest body) (defmacro with-category-table (table &rest body)
......
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