[antlr-interest] Can I restart lexing from definite position indocument?

[P.N.]

Sam Harwell schrieb:
> Is this part of a syntax highlighter?
>
Yes.

> Either way, you can always take an arbitrary token from your original
> token stream that falls before the location in the document where a
> change occurred, and substring your document text at that location. Then
> create a token stream based on the original tokens up to the break
> followed by the tokens you just got back from the re-lexing of the
> document.
>

Sounds strange, and not useful. My point is, the document content may be 
changed in a JEditorPane, and I don't want to do lexing/tokenizing again.

Peter

> Sam
>
> -----Original Message-----
> From: antlr-interest-bounces at antlr.org
> [mailto:antlr-interest-bounces at antlr.org] On Behalf Of P.N.
> Sent: Friday, April 17, 2009 4:51 AM
> To: antlr-interest at antlr.org
> Subject: [antlr-interest] Can I restart lexing from definite position
> indocument?
>
>
> Hello!
>
> Just want to know, if it's possible to restart lexing in a big file.
> Say, e.g. the file might be of 20MB or more (okay, that's not good
> programming style, but's not the question here ;-) ), and I'd change
> sth. at the end of the file - would I need to do lexing from start
> again, or is there a chance to do it only for the last characters?
> Probably using org.antlr.runtime.RecognizerSharedState? How should I use
> it?
>
> Kind regards
>
> Peter
>
>
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