/* Fastest version of wc: add rules to pick up newlines, too */ ws [ \t] nonws [^ \t\n] word {ws}*{nonws}+ words {word}{ws}+ %option main noyywrap %% int cc = 0, wc = 0, lc = 0; {word}{ws}* ++wc; cc += yyleng; {word}{ws}*\n ++wc; cc += yyleng; ++lc; {words}{word}{ws}* wc += 2; cc += yyleng; {words}{word}{ws}*\n wc += 2; cc += yyleng; ++lc; {words}{2}{word}{ws}* wc += 3; cc += yyleng; {words}{2}{word}{ws}*\n wc += 3; cc += yyleng; ++lc; {words}{3}{word}{ws}* wc += 4; cc += yyleng; {words}{3}{word}{ws}*\n wc += 4; cc += yyleng; ++lc; {ws}+ cc += yyleng; \n+ cc += yyleng; lc += yyleng; <<EOF>> { printf( "%8d %8d %8d\n", lc, wc, cc ); yyterminate(); }