Special character sets in ANTLR C++ target

0
votes

I am using ANTLR 3.5 version for parsing our grammer in c++. The input file contains the extended characters like "°".ANTLR is not able to match these character with Lexer rule. Can any one suggest how to match Extended characters in ANTLR

1
antlr3

1 Answers

0
votes

What Unicode codepoint is that? Keep in mind ANTLR (including ANLTR 4) only can handle the Unicode BMP (Basic Multilingual Plane). You cannot parse input the contains characters beyond that.