ref: 8cd7b36a0dc1aed76ab0a367267e210966668fbb
dir: /examples/wc.ref/
<include> <stdio> <h> <int> <lines> <words> <chars> <start> <line> <word> <char> <line> <n> <r> <r> <n> <lines> <chars> <yyleng> <word> <a> <zA> <Z> <words> <chars> <yyleng> <printf> <s> <n> <yytext> <char> <chars> <int> <main> <while> <yyparse> <printf> <d> <lines> <n> <lines> <printf> <d> <chars> <n> <chars> <printf> <d> <words> <n> <words> <return> 22 lines 425 chars 52 words