[Date Prev][Date Next][Thread Prev][Thread Next]
- Subject: Re: Lua 5.3.3 empty match behaviour with the '-' modifier
- From: Roberto Ierusalimschy <roberto@...>
- Date: Thu, 12 May 2016 09:56:53 -0300
> Lua 5.3.3 Copyright (C) 1994-2016 Lua.org, PUC-Rio
> > =(";a;"):gsub("a-", "ITEM")
> ITEM;ITEMaITEM;ITEM 4
> I.e. the substring 'a' in ";a;" is not recognized as an instance
> of the pattern "a-".
The substring 'a' is not an instance of the pattern "a-", given that
'' is also valid and shorter than 'a'. So, this behavior seems correct.
> The new behaviour is so far documented only in the list of changes
> , not in the manual.
Officially, the behavior is still undefined :-)