yydebug

jay/yydebug supports tracing and animation for a Java-based parser generated by jay. An implementation of yyDebug is passed as an additional argument to yyparse() to trace a Java-based parser generated by jay with option -t set. yyDebugAdapter produces one-line messages, by default to standard output. The messages are designed to be filtered by a program such as grep. yyAnim provides an animation of the parsing process

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