xref: /minix/external/bsd/flex/dist/examples/fastwc/wc5.l (revision 0a6a1f1d)
1 /* Oops; slight change from wc3.l introduces backtracking */
2 
3 ws    [ \t]
4 nonws [^ \t\n]
5 word  {ws}*{nonws}+
6 words {word}{ws}+
7 
8 %option main noyywrap
9 %%
10 	int cc = 0, wc = 0, lc = 0;
11 
12 {word}{ws}*		cc += yyleng; ++wc;
13 {word}{ws}*\n		cc += yyleng; ++wc; ++lc;
14 {words}{word}		cc += yyleng; wc += 2;	/* oops */
15 {words}{2}{word}{ws}*	cc += yyleng; wc += 3;
16 {words}{3}{word}{ws}*	cc += yyleng; wc += 4;
17 
18 {ws}+			cc += yyleng;
19 
20 \n+			cc += yyleng; lc += yyleng;
21 
22 <<EOF>>		{
23 		printf( "%8d %8d %8d\n", lc, wc, cc );
24 		yyterminate();
25 		}
26