1/* Fastest version of wc: add rules to pick up newlines, too */ 2 3ws [ \t] 4nonws [^ \t\n] 5word {ws}*{nonws}+ 6words {word}{ws}+ 7 8%option main noyywrap 9%% 10 int cc = 0, wc = 0, lc = 0; 11 12{word}{ws}* ++wc; cc += yyleng; 13{word}{ws}*\n ++wc; cc += yyleng; ++lc; 14{words}{word}{ws}* wc += 2; cc += yyleng; 15{words}{word}{ws}*\n wc += 2; cc += yyleng; ++lc; 16{words}{2}{word}{ws}* wc += 3; cc += yyleng; 17{words}{2}{word}{ws}*\n wc += 3; cc += yyleng; ++lc; 18{words}{3}{word}{ws}* wc += 4; cc += yyleng; 19{words}{3}{word}{ws}*\n wc += 4; cc += yyleng; ++lc; 20 21{ws}+ cc += yyleng; 22 23\n+ cc += yyleng; lc += yyleng; 24 25<<EOF>> { 26 printf( "%8d %8d %8d\n", lc, wc, cc ); 27 yyterminate(); 28 } 29