[antlr-interest] Possible serious bug using setText in Antlr3
Terence Parr
parrt at cs.usfca.edu
Wed Nov 15 08:55:38 PST 2006
On Nov 14, 2006, at 10:16 PM, shmuel siegel wrote:
> The wiki page, "how do I strip quotes", recommends using setText to
> change the text of the token to be generated. For example
>
> ESC : '\\' 'n' {setText("\n");};
>
> As far as I can tell, this sets an instance variable of the lexer
> to the specified text. Emit then adds this text to generated
> tokens. getText will then preferentially return this text rather
> than build a string from the character stream. So far, so good. But
> nothing changes the instance variable back to null. So all future
> tokens will have the same text.
>
> setting text=null in nextToken seems to work for me.
Yes, you are right. I have that fix already in 3.0b5 coming out
today :)
Ter
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