Re: Possible pattern bug

["Liam Devine" <liamdevine@...>]

On 16/11/13 20:59, Michael Savage wrote:
> Hi lua-l,
>
> ( "[a] [b] c" ):match( "%[(.-)%] c" )
> -> "a] [b"
>
> > From http://www.lua.org/manual/5.1/manual.html#5.4.1 or
> http://www.lua.org/manual/5.2/manual.html#6.4.1:
>
> > a single character class followed by '-', which also matches 0 or more
> > repetitions of characters in the class. Unlike '*', these repetition
> > items will always match the shortest possible sequence;
>
> The shortest possible sequence for the above is "b". Is this a bug?
>
> Mike

It is not, as it returns the first match [1]. If you wanted to capture 
the last sequence in square brackets you could prefix it with a greedy 
match:
( "[a] [b] c" ):match( ".*%[(.-)%] c" )

[1] http://www.lua.org/manual/5.2/manual.html#pdf-string.match
--
Liam