1/* Oops; slight change from wc3.l introduces backtracking */ 2 3ws [ \t] 4nonws [^ \t\n] 5word {ws}*{nonws}+ 6words {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} cc += yyleng; wc += 2; /* oops */ 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