Thanks! It is true I use ANTLRWorks v3. Now I have try an other grammar, all is well, without when I makes the debugger it shows me: "cannot launch the debugger. Time-out waiting to connect to the remote parser"
Or sometimes it shows me: "Compiler exception: java.io.IOException: Cannot run program"javac": CreateProcess errors=2, Le fichier spécifié est introuvable" What is the wrong?? An other question please , when I use ANTLRWorks it is necessary to install ANTLR and how? Just add ANTLR.jar in Classpath? Thanks for your help. ________________________________ De : John B. Brodie <[email protected]> À : Molka Tounsi <[email protected]> Cc : antlr-interest <[email protected]> Envoyé le : Mar 20 avril 2010, 16 h 59 min 36 s Objet : Re: [antlr-interest] help please Greetings! On Tue, 2010-04-20 at 14:37 +0000, Molka Tounsi wrote: > I tried this example on ANTLRWORK but it shows me errors. > This is the code: > class CalcParser extends Parser; > options { > buildAST = true; // uses CommonAST by default > } > > expr > : mexpr (PLUS^ mexpr)* SEMI! > ; > > mexpr > : atom (STAR^ atom)* > ; > > atom: INT > ; > > class CalcLexer extends Lexer; > > WS : (' ' > | '\t' > | '\n' > | '\r') > { _ttype = Token.SKIP; } > ; > > LPAREN: '(' > ; > > RPAREN: ')' > ; > > STAR: '*' > ; > > PLUS: '+' > ; > > SEMI: ';' > ; > > protected > DIGIT > : '0'..'9' > ; > > INT : (DIGIT)+ > ; > > class CalcTreeWalker extends TreeParser; > > expr returns [float r] > { > float a,b; > r=0; > } > : #(PLUS a=expr b=expr) {r = a+b;} > | #(STAR a=expr b=expr) {r = a*b;} > | i:INT {r = (float)Integer.parseInt(i.getText());} > ; > > can you help me please ??? > This looks like an ANTLR version 2 grammar. Are you sure you are using an older (e.g. v2) ANTLRWorks and not a newwer v3 oriented ANTLRWorks? You might consider moving up to ANTLR version 3... 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 [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.
