external/bsd/flex/dist/examples/fastwc/wc3.l

   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                 }