The grammar is rather stupid and simple grammar Expression;
// memoize=true; options {output=AST;backtrack=true;} tokens { PLUS='+'; MINUS='-'; MULT='*'; DIV='/'; } content : atom ((PLUS|MINUS|MULT|DIV) atom)* ; atom : INT | FLT ; INT : '0'..'9'+ ; FLT : ('0'..'9')+ '.' ('0'..'9')* EXPONENT? | '.' ('0'..'9')+ EXPONENT? | ('0'..'9')+ EXPONENT ; WS : ( ' ' | '\t' | '\r' | '\n' ) {$channel=HIDDEN;} ; fragment EXPONENT : ('e'|'E') ('+'|'-')? ('0'..'9')+ ; It is executed with the following Java code ANTLRStringStream input = new ANTLRStringStream("15 / 7.25 +4"); ExpressionLexer lex = new ExpressionLexer(input); CommonTokenStream tokens = new CommonTokenStream(lex); ExpressionParser g = new ExpressionParser(tokens); //, 49100, null); try { ExpressionParser.content_return r = g.content(); CommonTree ctree = (CommonTree) r.getTree(); System.out.println("ctree.type|" + ctree.getType() + "|" + ExpressionParser.tokenNames[ctree.getType()] + "|"); } catch (RecognitionException e) { e.printStackTrace(); } Yet here the input of "15 / 7.25 +4" does not work. Eclipse outputs "ctree.type|0|<invalid>|". When I use simply "15" as input, I get the - correct - output "ctree.type|7|INT|". Thanks, Didi Am 10.11.2011 16:46, schrieb Jim Idle: > There is not enough information here for anyone to help. What do you mean > by " only some rules works but not all"? They give syntax errors? Lexer? > Parser? Exception? etc. > > Jim > >> -----Original Message----- >> From: antlr-interest-boun...@antlr.org [mailto:antlr-interest- >> boun...@antlr.org] On Behalf Of D. Frej >> Sent: Thursday, November 10, 2011 2:05 AM >> To: antlr-interest@antlr.org >> Subject: [antlr-interest] grammar works in antlrworks debug mode but >> not eclipse >> >> Hi, >> >> I created a grammar with the latest antlrworks. With antlrworks' debug >> functionality I "tested" the grammar. For proper throughout testing I >> copied the generated Lexer and Parser code to my eclipse project. The >> only change I made to the code was to add a package declaration. >> >> However, when I ran the code in eclipse only some rules works but not >> all. An input that works perfectly in antlrworks debug functionality is >> not working in eclipse. Any suggestions? I tried it with antlr-3.4 as >> well as an older version (3.1.1). >> >> This behaviour happens to me for the first time, even though I am using >> antlr for quite some time and in different versions. >> >> Thanks, >> >> - Didi >> >> List: http://www.antlr.org/mailman/listinfo/antlr-interest >> Unsubscribe: http://www.antlr.org/mailman/options/antlr-interest/your- >> email-address > List: http://www.antlr.org/mailman/listinfo/antlr-interest > Unsubscribe: > http://www.antlr.org/mailman/options/antlr-interest/your-email-address > List: http://www.antlr.org/mailman/listinfo/antlr-interest Unsubscribe: http://www.antlr.org/mailman/options/antlr-interest/your-email-address -- You received this message because you are subscribed to the Google Groups "il-antlr-interest" group. To post to this group, send email to il-antlr-inter...@googlegroups.com. To unsubscribe from this group, send email to il-antlr-interest+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/il-antlr-interest?hl=en.