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-rw-r--r--lisp/eshell/esh-util.el20
1 files changed, 13 insertions, 7 deletions
diff --git a/lisp/eshell/esh-util.el b/lisp/eshell/esh-util.el
index 8b522449762..9549e7f1a10 100644
--- a/lisp/eshell/esh-util.el
+++ b/lisp/eshell/esh-util.el
@@ -94,13 +94,6 @@ a non-nil value, will be passed strings, not numbers, even when an
argument matches `eshell-number-regexp'."
:type 'boolean)
-(defcustom eshell-number-regexp "-?\\([0-9]*\\.\\)?[0-9]+\\(e[-0-9.]+\\)?"
- "Regular expression used to match numeric arguments.
-If `eshell-convert-numeric-arguments' is non-nil, and an argument
-matches this regexp, it will be converted to a Lisp number, using the
-function `string-to-number'."
- :type 'regexp)
-
(defcustom eshell-ange-ls-uids nil
"List of user/host/id strings, used to determine remote ownership."
:type '(repeat (cons :tag "Host for User/UID map"
@@ -111,6 +104,19 @@ function `string-to-number'."
;;; Internal Variables:
+(defvar eshell-number-regexp
+ (rx (? "-")
+ (or (seq (+ digit) (? "." (* digit)))
+ (seq (* digit) "." (+ digit)))
+ ;; Optional exponent
+ (? (or "e" "E")
+ (or "+INF" "+NaN"
+ (seq (? (or "+" "-")) (+ digit)))))
+ "Regular expression used to match numeric arguments.
+If `eshell-convert-numeric-arguments' is non-nil, and an argument
+matches this regexp, it will be converted to a Lisp number, using the
+function `string-to-number'.")
+
(defvar eshell-integer-regexp (rx (? "-") (+ digit))
"Regular expression used to match integer arguments.")