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kevinrobayna/Grammar

Created May 7, 2014 19:27
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Grammar
%lex
%%
[\s\t\n\r] /** SKIP WHITESPACE */
<<EOF>> return 'EOF'
a return 'T_A';
b return 'T_B';
/lex
%%
S_A
: { return false; }
| T_A S_B
| T_B S_C
;
S_B
: { return false; }
| T_B S_D
;
S_C
: { return false; }
| T_A S_D
;
S_D
: EOF { return true;}
;
@crguezl
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crguezl commented May 7, 2014 

            %lex
            %%

            \s+ /** SKIP WHITESPACE */
            .   return yytext;
            /lex

            %%

            S_A
                 : 'a' 'b' { console.log($1+$2);}
            ;

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