diff options
Diffstat (limited to 'examples/fastwc/wc4.l')
| -rw-r--r-- | examples/fastwc/wc4.l | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/examples/fastwc/wc4.l b/examples/fastwc/wc4.l new file mode 100644 index 0000000..90c36ee --- /dev/null +++ b/examples/fastwc/wc4.l @@ -0,0 +1,28 @@ +/* Fastest version of wc: add rules to pick up newlines, too */ + +ws [ \t] +nonws [^ \t\n] +word {ws}*{nonws}+ +words {word}{ws}+ + +%option main noyywrap +%% + int cc = 0, wc = 0, lc = 0; + +{word}{ws}* ++wc; cc += yyleng; +{word}{ws}*\n ++wc; cc += yyleng; ++lc; +{words}{word}{ws}* wc += 2; cc += yyleng; +{words}{word}{ws}*\n wc += 2; cc += yyleng; ++lc; +{words}{2}{word}{ws}* wc += 3; cc += yyleng; +{words}{2}{word}{ws}*\n wc += 3; cc += yyleng; ++lc; +{words}{3}{word}{ws}* wc += 4; cc += yyleng; +{words}{3}{word}{ws}*\n wc += 4; cc += yyleng; ++lc; + +{ws}+ cc += yyleng; + +\n+ cc += yyleng; lc += yyleng; + +<<EOF>> { + printf( "%8d %8d %8d\n", lc, wc, cc ); + yyterminate(); + } |