1 /* $NetBSD: wc4.l,v 1.1.1.1 2009/10/26 00:28:34 christos Exp $ */ 2 3 /* Fastest version of wc: add rules to pick up newlines, too */ 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}* ++wc; cc += yyleng; 15 {word}{ws}*\n ++wc; cc += yyleng; ++lc; 16 {words}{word}{ws}* wc += 2; cc += yyleng; 17 {words}{word}{ws}*\n wc += 2; cc += yyleng; ++lc; 18 {words}{2}{word}{ws}* wc += 3; cc += yyleng; 19 {words}{2}{word}{ws}*\n wc += 3; cc += yyleng; ++lc; 20 {words}{3}{word}{ws}* wc += 4; cc += yyleng; 21 {words}{3}{word}{ws}*\n wc += 4; cc += yyleng; ++lc; 22 23 {ws}+ cc += yyleng; 24 25 \n+ cc += yyleng; lc += yyleng; 26 27 <<EOF>> { 28 printf( "%8d %8d %8d\n", lc, wc, cc ); 29 yyterminate(); 30 } 31