diff options
Diffstat (limited to 'test/strip_003.b.c')
| -rw-r--r-- | test/strip_003.b.c | 303 |
1 files changed, 303 insertions, 0 deletions
diff --git a/test/strip_003.b.c b/test/strip_003.b.c new file mode 100644 index 00000000..524c8d37 --- /dev/null +++ b/test/strip_003.b.c @@ -0,0 +1,303 @@ +/* Generated by re2c */ +#line 1 "strip_003.b.re" +/* re2c lesson 002_strip_comments, strip_003.b, (c) M. Boerger 2006 - 2007 */ +#line 37 "strip_003.b.re" + +#include <stdlib.h> +#include <stdio.h> +#include <string.h> + +#define YYMAXFILL 4 +#define BSIZE 128 + +#if BSIZE < YYMAXFILL +# error BSIZE must be greater YYMAXFILL +#endif + +#define YYCTYPE unsigned char +#define YYCURSOR s.cur +#define YYLIMIT s.lim +#define YYMARKER s.mrk +#define YYCTXMARKER s.ctx +#define YYFILL(n) { if ((res = fill(&s, n)) >= 0) break; } + +typedef struct Scanner +{ + FILE *fp; + unsigned char *cur, *tok, *lim, *eof, *ctx, *mrk; + unsigned char buffer[BSIZE]; +} Scanner; + +int fill(Scanner *s, int len) +{ + if (!len) + { + s->cur = s->tok = s->lim = s->mrk = s->buffer; + s->eof = 0; + } + if (!s->eof) + { + int got, cnt = s->tok - s->buffer; + + if (cnt > 0) + { + memcpy(s->buffer, s->tok, s->lim - s->tok); + s->tok -= cnt; + s->cur -= cnt; + s->lim -= cnt; + s->mrk -= cnt; + s->ctx -= cnt; + } + cnt = BSIZE - cnt; + if ((got = fread(s->lim, 1, cnt, s->fp)) != cnt) + { + s->eof = &s->lim[got]; + } + s->lim += got; + } + else if (s->cur + len > s->eof) + { + return 0; /* not enough input data */ + } + return -1; +} + +void echo(Scanner *s) +{ + fwrite(s->tok, 1, s->cur - s->tok, stdout); +} + +int scan(FILE *fp) +{ + int res = 0; + int nlcomment = 0; + Scanner s; + + if (!fp) + { + return 1; /* no file was opened */ + } + + s.fp = fp; + + fill(&s, 0); + + for(;;) + { + s.tok = s.cur; + +#line 90 "strip_003.b.c" + { + YYCTYPE yych; + if ((YYLIMIT - YYCURSOR) < 4) YYFILL(4); + yych = *YYCURSOR; + if (yych <= '\f') { + if (yych == '\n') goto yy5; + goto yy6; + } else { + if (yych <= '\r') goto yy4; + if (yych != '/') goto yy6; + } + ++YYCURSOR; + if ((yych = *YYCURSOR) == '*') goto yy12; + if (yych == '/') goto yy14; +yy3: +#line 130 "strip_003.b.re" + { fputc(*s.tok, stdout); continue; } +#line 108 "strip_003.b.c" +yy4: + yych = *(YYMARKER = ++YYCURSOR); + if (yych == '\n') goto yy11; + goto yy3; +yy5: + yych = *(YYMARKER = ++YYCURSOR); + YYCTXMARKER = YYCURSOR; + if (yych == '/') goto yy7; + goto yy3; +yy6: + yych = *++YYCURSOR; + goto yy3; +yy7: + yych = *++YYCURSOR; + if (yych == '*') goto yy9; +yy8: + YYCURSOR = YYMARKER; + goto yy3; +yy9: + ++YYCURSOR; + YYCURSOR = YYCTXMARKER; +#line 128 "strip_003.b.re" + { echo(&s); nlcomment = 1; continue; } +#line 132 "strip_003.b.c" +yy11: + yych = *++YYCURSOR; + YYCTXMARKER = YYCURSOR; + if (yych == '/') goto yy7; + goto yy8; +yy12: + ++YYCURSOR; +#line 129 "strip_003.b.re" + { goto comment; } +#line 142 "strip_003.b.c" +yy14: + ++YYCURSOR; +#line 127 "strip_003.b.re" + { goto cppcomment; } +#line 147 "strip_003.b.c" + } +#line 131 "strip_003.b.re" + +comment: + s.tok = s.cur; + +#line 154 "strip_003.b.c" + { + YYCTYPE yych; + if ((YYLIMIT - YYCURSOR) < 2) YYFILL(2); + yych = *YYCURSOR; + if (yych != '*') goto yy20; + ++YYCURSOR; + if ((yych = *YYCURSOR) == '/') goto yy21; +yy19: +#line 136 "strip_003.b.re" + { goto comment; } +#line 165 "strip_003.b.c" +yy20: + yych = *++YYCURSOR; + goto yy19; +yy21: + ++YYCURSOR; +#line 135 "strip_003.b.re" + { goto commentws; } +#line 173 "strip_003.b.c" + } +#line 137 "strip_003.b.re" + +commentws: + s.tok = s.cur; + +#line 180 "strip_003.b.c" + { + YYCTYPE yych; + if ((YYLIMIT - YYCURSOR) < 4) YYFILL(4); + yych = *YYCURSOR; + if (yych <= '\r') { + if (yych <= '\t') { + if (yych <= 0x08) goto yy32; + goto yy31; + } else { + if (yych <= '\n') goto yy27; + if (yych <= '\f') goto yy32; + } + } else { + if (yych <= ' ') { + if (yych <= 0x1F) goto yy32; + goto yy31; + } else { + if (yych == '/') goto yy29; + goto yy32; + } + } + ++YYCURSOR; + if ((yych = *YYCURSOR) == '\n') goto yy37; +yy26: +#line 150 "strip_003.b.re" + { goto commentws; } +#line 207 "strip_003.b.c" +yy27: + yych = *(YYMARKER = ++YYCURSOR); + if (yych == '/') goto yy35; +yy28: +#line 142 "strip_003.b.re" + { + if (!nlcomment) + { + echo(&s); + } + nlcomment = 0; + continue; + } +#line 221 "strip_003.b.c" +yy29: + ++YYCURSOR; + if ((yych = *YYCURSOR) == '*') goto yy33; +yy30: +#line 151 "strip_003.b.re" + { echo(&s); nlcomment = 0; continue; } +#line 228 "strip_003.b.c" +yy31: + yych = *++YYCURSOR; + goto yy26; +yy32: + yych = *++YYCURSOR; + goto yy30; +yy33: + ++YYCURSOR; +#line 141 "strip_003.b.re" + { goto comment; } +#line 239 "strip_003.b.c" +yy35: + yych = *++YYCURSOR; + if (yych == '*') goto yy33; + YYCURSOR = YYMARKER; + goto yy28; +yy37: + yych = *(YYMARKER = ++YYCURSOR); + if (yych == '/') goto yy35; + goto yy28; + } +#line 152 "strip_003.b.re" + +cppcomment: + s.tok = s.cur; + +#line 255 "strip_003.b.c" + { + YYCTYPE yych; + if ((YYLIMIT - YYCURSOR) < 2) YYFILL(2); + yych = *YYCURSOR; + if (yych == '\n') goto yy42; + if (yych != '\r') goto yy44; + ++YYCURSOR; + if ((yych = *YYCURSOR) == '\n') goto yy45; +yy41: +#line 157 "strip_003.b.re" + { goto cppcomment; } +#line 267 "strip_003.b.c" +yy42: + ++YYCURSOR; +yy43: +#line 156 "strip_003.b.re" + { echo(&s); continue; } +#line 273 "strip_003.b.c" +yy44: + yych = *++YYCURSOR; + goto yy41; +yy45: + ++YYCURSOR; + yych = *YYCURSOR; + goto yy43; + } +#line 158 "strip_003.b.re" + + } + + if (fp != stdin) + { + fclose(fp); /* close only if not stdin */ + } + return res; /* return result */ +} + +int main(int argc, char **argv) +{ + if (argc > 1) + { + return scan(!strcmp(argv[1], "-") ? stdin : fopen(argv[1], "r")); + } + else + { + fprintf(stderr, "%s <expr>\n", argv[0]); + return 1; + } +} |