Hmm... think I've deleted all the things for debug.
On Thu, Dec 29, 2011 at 5:46 PM, Nala Ginrut <nalagin...@gmail.com> wrote:
> Sorry, there's a typo.
> Here it is.
>
>
> On Thu, Dec 29, 2011 at 5:32 PM, Nala Ginrut <nalagin...@gmail.com> wrote:
>
>> hi guilers!
>> It seems like there's no "regexp-split" procedure in Guile.
>> What we have is "string-split" which accepted Char only.
>> So I wrote one for myself.
>>
>> ------python code-----
>> >>> import re
>> >>> re.split("([^0-9])", "123+456*/")
>> [’123’, ’+’, ’456’, ’*’, ’’, ’/’, ’’]
>> --------code end-------
>>
>> The Guile version:
>>
>> ----------guile code-------
>> (regexp-split "([^0-9])" "123+456*/")
>> ==>("123" "+" "456" "*" "" "/" "")
>> ----------code end--------
>>
>> Anyone interested in it?
>>
>>
>
From 39155a1ddebd4da0cd13a4bcae93395f39765c0e Mon Sep 17 00:00:00 2001
From: NalaGinrut <nalagin...@gmail.com>
Date: Thu, 29 Dec 2011 18:19:00 +0800
Subject: [PATCH] ADD regexp-split
---
module/ice-9/regex.scm | 20 +++++++++++++++++++-
1 files changed, 19 insertions(+), 1 deletions(-)
diff --git a/module/ice-9/regex.scm b/module/ice-9/regex.scm
index f7b94b7..2877419 100644
--- a/module/ice-9/regex.scm
+++ b/module/ice-9/regex.scm
@@ -41,7 +41,7 @@
#:export (match:count match:string match:prefix match:suffix
regexp-match? regexp-quote match:start match:end match:substring
string-match regexp-substitute fold-matches list-matches
- regexp-substitute/global))
+ regexp-substitute/global regexp-split))
;; References:
;;
@@ -226,3 +226,21 @@
(begin
(do-item (car items)) ; This is not.
(next-item (cdr items)))))))))))
+
+(define regexp-split
+ (lambda (regex str)
+ (let ([ret (fold-matches
+ regex str (list '() 0 '(""))
+ (lambda (m prev)
+ (let* ([ll (car prev)]
+ [start (cadr prev)]
+ [tail (match:suffix m)]
+ [end (match:start m)]
+ [s (string-copy str start end)]
+ )
+ (list `(,@ll ,s ,(match:substring m))
+ (match:end m) tail)
+ )))])
+ `(,@(car ret) ,(caddr ret))
+ )))
+
--
1.7.0.4
