?? ch2-02.l
字號:
%{unsigned charCount = 0, wordCount = 0, lineCount = 0;%}word [^ \t\n]+eol \n%%{word} { wordCount++; charCount += yyleng; }{eol} { charCount++; lineCount++; }. charCount++;%%main(argc,argv)int argc;char **argv;{ if (argc > 1) { FILE *file; file = fopen(argv[1], "r"); if (!file) { fprintf(stderr,"could not open %s\n",argv[1]); exit(1); } yyin = file; } yylex(); printf("%d %d %d\n",charCount, wordCount, lineCount); return 0;}
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