Try moveing the rule for Name bellow Ipaddress. Regards, Sidharth
On Wed, Feb 18, 2009 at 1:23 AM, "Paul Bouché (NSN)" <[email protected]>wrote: > Hi, > > I have a lexer which already recognizes valid tokens of different types, > e.g. an integer will generate an integer token, a quoted string a string > token, an ip address and ipaddress token etc. > E.g: > > property : key '=' value; > key : Name; > value : Integer | String | Ipaddress; > Name : ('a'..'z' | 'A'..'Z' | '0'..'9' | '_' | '-' | ':' | '%')+ > Integer : ('+'|'-')? ('0'..'9')+; > Ipaddress : ('0'..'9')+ '.' ('0'..'9')+ '.' ('0'..'9')+ '.' ('0'..'9')+ > // simplified, actual grammar is correct max of three digits > String : ( '\'' ( STRING_ | '`' | '"' | '\\' '\'' )* '\'' > | '"' ( STRING_ | '`' | '\'' | '\\' '"' )* '"' > ); > WHITESPACE > : > ( ' ' | '\t' | '\n' )+ > { skip(); } > ; > > All works fine. Now I need to include unquoted strings with blanks. The > problem is '0 ' (zero blank - without quotes of course). I cannot get > the lexer to match this as an Integer as before. Basically I want a rule > which says, if it is not something of the previous tokens, try if is an > unquoted string. Of course an unquoted string may not have newlines. > Any hints on how to archive this? > I tried everything and ran several times into code too large exceptions > because the actual grammar is much more complex (there are more unquoted > values which are recognized by certain prefixed characters such as < 0x > :: etc.). > > Thanks a bunch! > Paul > > -- > Paul Bouché > Voice: +49 30 590080-1284 > > Nokia Siemens Networks GmbH & Co. KG, An den Treptowers 1, 12435 Berlin, > Germany > Sitz der Gesellschaft: München / Registered office: Munich > Registergericht: München / Commercial registry: Munich, HRA 88537 > WEEE-Reg.-Nr.: DE 52984304 > > Persönlich haftende Gesellschafterin / General Partner: Nokia Siemens > Networks Management GmbH > Geschäftsleitung / Board of Directors: Lydia Sommer, Olaf Horsthemke > Vorsitzender des Aufsichtsrats / Chairman of supervisory board: Lauri > Kivinen > Sitz der Gesellschaft: München / Registered office: Munich > Registergericht: München / Commercial registry: Munich, HRB 163416 > > > List: http://www.antlr.org/mailman/listinfo/antlr-interest > Unsubscribe: > http://www.antlr.org/mailman/options/antlr-interest/your-email-address > -- I am but a man. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "il-antlr-interest" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/il-antlr-interest?hl=en -~----------~----~----~----~------~----~------~--~---
List: http://www.antlr.org/mailman/listinfo/antlr-interest Unsubscribe: http://www.antlr.org/mailman/options/antlr-interest/your-email-address
