# 1.9: no warning: regexp has invalid interval

**URL:** <https://www.ruby-forum.com/t/1-9-no-warning-regexp-has-invalid-interval/101919>\
**Category:** Development\
**Created:** [August 8, 2006, 6:24pm UTC](https://www.ruby-forum.com/t/1-9-no-warning-regexp-has-invalid-interval/101919 "2006-08-08T18:24:15Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Kazuhiro\_NISHIYAMA](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/77aa72/32.png) [@Kazuhiro\_NISHIYAMA](https://www.ruby-forum.com/u/Kazuhiro_NISHIYAMA)\
**Post date:** [August 8, 2006, 6:24pm UTC](https://www.ruby-forum.com/t/1-9-no-warning-regexp-has-invalid-interval/101919/1 "2006-08-08T18:24:15Z")

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e$B@\>;3OB9-$G$9!#e(B

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>
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e$BNL;XDj;Re(B {n,m} e$B4X78$N7Y9p$,=P$^$;$s!#e(B

% ruby18 -ve ‘/.{1, 2}/ =~ “”’  
ruby 1.8.5 (2006-08-09) [i686-linux]  
-e:1: warning: regexp has invalid interval  
-e:1: warning: regexp has `}’ without escape  
% ruby19 -ve ‘/.{1, 2}/ =~ “”’  
ruby 1.9.0 (2006-08-09) [i686-linux]  
%

---

<div class="post-metadata">

**Author:** ![Kazuhiro\_NISHIYAMA](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/77aa72/32.png) [@Kazuhiro\_NISHIYAMA](https://www.ruby-forum.com/u/Kazuhiro_NISHIYAMA)\
**Post date:** [August 9, 2006, 2:16pm UTC](https://www.ruby-forum.com/t/1-9-no-warning-regexp-has-invalid-interval/101919/2 "2006-08-09T14:16:34Z")

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Kazuhiro NISHIYAMA wrote:

> ruby 1.9.0 (2006-08-09) [i686-linux]  
> %

e$B$I$3$^$GJx$l$?I=5-$KBP$7$F!“7Y9p$^$?$O%(%i!\<$H$9$ke(B  
e$B$N$+4p=`$,$o$+$i$J$+$C$?$N$G!":#$OA4$/=P$7$F$$$^$;$s!#e(B e$B4p=`$,7h$^$C$F$$$l$P!”=P$;$k$H;W$$$^$9!#e(B

/a{/, /a{2/, /a{2,/, /a{2,3/, /a{2, }/, /a{ ,3}/

e$B7+$jJV$7$NBP\>]$,B8:\_$7$J$$\>l9g$@$1$O%(%i!\<$K$7$F$$$^$9!#e(B  
/{2,3}/