matchChunk & matchText broken?

[Brian Milby]

If the regularExpression includes a pair of parentheses, the position of the substring matching the part of the regular expression inside the parentheses is placed in the variables in the positionVarsList.

Sent from my iPhone

> On Aug 13, 2021, at 4:33 AM, Peter Reid via use-livecode <use-livecode at lists.runrev.com> wrote:
> 
> Either I'm doing something wrong or both matchChunk and matchText are broken.
> 
> For example using matchChunk:
> 
> local tStartPos, tEndPos
> put empty into tStartPos
> put empty into tEndPos
> 
> put matchChunk("hello world how are you", "\ ho[a-z]", tStartPos, tEndPos) into itMatches
> 
> put itMatches & "|" & tStartPos & "|" & tEndPos & "|"
> 
> 
> The output is:    true|||    - in other words a match is found but the positions are not being returned in the variables tStart and tEnd
> 
> I get the same behaviour from matchText, ie it correctly finds or not the patterns I'm looking for but I don't get the positions (matchChunk) or text (matchText).
> 
> These seem to be fairly fundamental and frequently used functions that should just work. Which is why I'm assuming that I'm doing something wrong!
> 
> Please can anyone correct me (or confirm the fault)?
> 
> Thanks
> 
> Peter
> --
> Peter Reid
> Loughborough, UK
> 
> 
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