[antlr-interest] rules for ASCII

[berserksangr]

In my parser created for c++, I need to parse a file that contains
some national signs. They have ASCII codes, i.e. 161, 198, 202, 163. How can
I write a lexer rule for accepting only chains made of this signs?

NATIONAL_CHAIN: (SIGN_161|SIGN_198|SIGN_202|SIGN_163)+;

My question can be treat more generally: What are the relations
between ASCII code and its ANTLR grammar representation in C++
ANTLR-related code?

-- 
Best regards,
 berserksangr                          mailto:berserksangr at poczta.onet.pl


 

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