So what should I do? Escape the } and {?
Olga
On Mon, Jun 18, 2012 at 5:21 PM, Glenn Fowler <[email protected]> wrote:
>
> On Mon, 18 Jun 2012 17:04:44 +0200 =?KOI8-R?B?z8zYx8Egy9LZ1sHOz9fTy8HR?=
> wrote:
>> from what I understand a {x,y} in extended regular expressions should
>> match x times but no more than y times. But ksh (ast-ksh.20120612)
>> returns no matches at all:
>> ksh -c 's="abbbc" ; d="${s/~(E)b{2,4}/dummy}" ; print -v .sh.match'
>
>> Is this a bug?
>
> first run with -x to checjk the parse
>
> ksh -cx 's="abbbc" ; d="${s/~(E)b{2,4}/dummy}" ; print -v .sh.match'
>
> and it does show a problem
> --
> +t+ s=bbb
> +t+ d='bbb/dummy}' <======
> +t+ print -v .sh.match
> --
>
> we can double verify that the regex is ok by using the regex test harness
> --
> bin/package use
> cd re
> print $'K\t~(E)b{2,4}\tabbbc\t(1,4)' > t.dat
> ./testregex t.dat
> --
>
> so it looks like a battle between the 2 '}' in the ${...} expansion
>
--
, _ _ ,
{ \/`o;====- Olga Kryzhanovska -====;o`\/ }
.----'-/`-/ [email protected] \-`\-'----.
`'-..-| / http://twitter.com/fleyta \ |-..-'`
/\/\ Solaris/BSD//C/C++ programmer /\/\
`--` `--`
_______________________________________________
ast-users mailing list
[email protected]
https://mailman.research.att.com/mailman/listinfo/ast-users
