1 /* $NetBSD: wc3.l,v 1.1.1.1 2009/10/26 00:28:34 christos Exp $ */ 2 3 /* Somewhat faster still: potentially match a lot of text with each rule */ 4 5 ws [ \t] 6 nonws [^ \t\n] 7 word {ws}*{nonws}+ 8 words {word}{ws}+ 9 10 %option main noyywrap 11 %% 12 int cc = 0, wc = 0, lc = 0; 13 14 {word}{ws}* cc += yyleng; ++wc; 15 {word}{ws}*\n cc += yyleng; ++wc; ++lc; 16 {words}{word}{ws}* cc += yyleng; wc += 2; 17 {words}{2}{word}{ws}* cc += yyleng; wc += 3; 18 {words}{3}{word}{ws}* cc += yyleng; wc += 4; 19 20 {ws}+ cc += yyleng; 21 22 \n+ cc += yyleng; lc += yyleng; 23 24 <<EOF>> { 25 printf( "%8d %8d %8d\n", lc, wc, cc ); 26 yyterminate(); 27 } 28