Make parse-time-string-chars more efficient

* lisp/calendar/parse-time.el (parse-time-string-chars): The
string has already been downcase, so don't care about case
(bug#18522).

diff --git a/lisp/calendar/parse-time.el b/lisp/calendar/parse-time.el
index 4086d236557d61c93e6c44b3caa86ad9dc7c6f62..fd26e772b57a0b125e3cc5af2984da30e654aea8 100644 (file)
--- a/lisp/calendar/parse-time.el
+++ b/lisp/calendar/parse-time.el
@@ -42,12 +42,11 @@
 
 (defsubst parse-time-string-chars (char)
   (save-match-data
-    (let (case-fold-search str)
+    (let (str)
       (cond ((eq char ?+) 1)
            ((eq char ?-) -1)
            ((eq char ?:) ?d)
-           ((string-match "[[:upper:]]" (setq str (string char))) ?A)
-           ((string-match "[[:lower:]]" str) ?a)
+           ((string-match "[[:lower:]]" (setq str (string char))) ?a)
            ((string-match "[[:digit:]]" str) ?0)))))
 
 (defun parse-time-tokenize (string)