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