Validating against the katherine grammar. See
Input some text to test:
make: Entering directory `/usr/local/yacker/W3C/Grammar/bin/uploads/katherine' bison -o katherineParser.cc katherineParser.yy flex -o katherineScanner.cc katherineScanner.ll g++ -DYYTEXT_POINTER=1 -W -Wall -Wextra -ansi -g -c -o katherineParser.o katherineParser.cc g++ -DYYTEXT_POINTER=1 -W -Wall -Wextra -ansi -g -c -o katherineScanner.o katherineScanner.cc g++ -W -Wall -Wextra -ansi -g -lboost_iostreams -o katherine katherineParser.o katherineScanner.o make: Leaving directory `/usr/local/yacker/W3C/Grammar/bin/uploads/katherine'