1 /* Somewhat faster still: potentially match a lot of text with each rule */ 2 3 ws [ \t] 4 nonws [^ \t\n] 5 word {ws}*{nonws}+ 6 words {word}{ws}+ 7 8 %% 9 int cc = 0, wc = 0, lc = 0; 10 11 {word}{ws}* cc += yyleng; ++wc; 12 {word}{ws}*\n cc += yyleng; ++wc; ++lc; 13 {words}{word}{ws}* cc += yyleng; wc += 2; 14 {words}{2}{word}{ws}* cc += yyleng; wc += 3; 15 {words}{3}{word}{ws}* cc += yyleng; wc += 4; 16 17 {ws}+ cc += yyleng; 18 19 \n+ cc += yyleng; lc += yyleng; 20 21 <<EOF>> { 22 printf( "%8d %8d %8d\n", lc, wc, cc ); 23 yyterminate(); 24 } 25
