int main(int argc, char *argv[]) { const char *fs = NULL; setlocale(LC_CTYPE, ""); setlocale(LC_NUMERIC, "C"); /* for parsing cmdline & prog */ cmdname = argv[0]; if (argc == 1) { fprintf(stderr, "usage: %s [-F fs] [-v var=value] [-f progfile | 'prog'] [file ...]\n", cmdname); exit(1); } signal(SIGFPE, fpecatch); yyin = NULL; symtab = makesymtab(NSYMTAB/NSYMTAB); while (argc > 1 && argv[1][0] == '-' && argv[1][1] != '\0') { if (strcmp(argv[1],"-version") == 0 || strcmp(argv[1],"--version") == 0) { printf("awk %s\n", version); exit(0); break; } if (strncmp(argv[1], "--", 2) == 0) { /* explicit end of args */ argc--; argv++; break; } switch (argv[1][1]) { case 's': if (strcmp(argv[1], "-safe") == 0) safe = 1; break; case 'f': /* next argument is program filename */ argc--; argv++; if (argc <= 1) FATAL("no program filename"); if (npfile >= MAX_PFILE - 1) FATAL("too many -f options"); pfile[npfile++] = argv[1]; break; case 'F': /* set field separator */ if (argv[1][2] != 0) { /* arg is -Fsomething */ if (argv[1][2] == 't' && argv[1][3] == 0) /* wart: t=>\t */ fs = "\t"; else if (argv[1][2] != 0) fs = &argv[1][2]; } else { /* arg is -F something */ argc--; argv++; if (argc > 1 && argv[1][0] == 't' && argv[1][1] == 0) /* wart: t=>\t */ fs = "\t"; else if (argc > 1 && argv[1][0] != 0) fs = &argv[1][0]; } if (fs == NULL || *fs == '\0') WARNING("field separator FS is empty"); break; case 'v': /* -v a=1 to be done NOW. one -v for each */ if (argv[1][2] == '\0' && --argc > 1 && isclvar((++argv)[1])) setclvar(argv[1]); break; case 'd': dbg = atoi(&argv[1][2]); if (dbg == 0) dbg = 1; printf("awk %s\n", version); break; default: WARNING("unknown option %s ignored", argv[1]); break; } argc--; argv++; } /* argv[1] is now the first argument */ if (npfile == 0) { /* no -f; first argument is program */ if (argc <= 1) { if (dbg) exit(0); FATAL("no program given"); } dprintf( ("program = |%s|\n", argv[1]) ); lexprog = argv[1]; argc--; argv++; } recinit(recsize); syminit(); compile_time = 1; argv[0] = cmdname; /* put prog name at front of arglist */ dprintf( ("argc=%d, argv[0]=%s\n", argc, argv[0]) ); arginit(argc, argv); if (!safe) envinit(environ); yyparse(); setlocale(LC_NUMERIC, ""); /* back to whatever it is locally */ if (fs) *FS = qstring(fs, '\0'); dprintf( ("errorflag=%d\n", errorflag) ); if (errorflag == 0) { compile_time = 0; run(winner); } else bracecheck(); return(errorflag); }
int getrec(char **pbuf, int *pbufsize, int isrecord) /* get next input record */ { /* note: cares whether buf == record */ int c; char *buf = *pbuf; uschar saveb0; int bufsize = *pbufsize, savebufsize = bufsize; if (awk_firsttime) { awk_firsttime = 0; initgetrec(); } dprintf( ("RS=<%s>, FS=<%s>, ARGC=%g, FILENAME=%s\n", *RS, *FS, *ARGC, *FILENAME) ); if (isrecord) { donefld = 0; donerec = 1; } saveb0 = buf[0]; buf[0] = 0; while (argno < *ARGC || infile == stdin) { dprintf( ("argno=%d, file=|%s|\n", argno, file) ); if (infile == NULL) { /* have to open a new file */ file = getargv(argno); if (*file == '\0') { /* it's been zapped */ argno++; continue; } if (isclvar(file)) { /* a var=value arg */ setclvar(file); argno++; continue; } *FILENAME = file; dprintf( ("opening file %s\n", file) ); if (*file == '-' && *(file+1) == '\0') infile = stdin; else if ((infile = fopen(file, "r")) == NULL) FATAL("can't open file %s", file); setfval(fnrloc, 0.0); } c = readrec(&buf, &bufsize, infile); if (c != 0 || buf[0] != '\0') { /* normal record */ if (isrecord) { if (freeable(fldtab[0])) xfree(fldtab[0]->sval); fldtab[0]->sval = buf; /* buf == record */ fldtab[0]->tval = REC | STR | DONTFREE; if (is_number(fldtab[0]->sval)) { fldtab[0]->fval = atof(fldtab[0]->sval); fldtab[0]->tval |= NUM; } } setfval(nrloc, nrloc->fval+1); setfval(fnrloc, fnrloc->fval+1); if (donefld == 0) fldbld(); *pbuf = buf; *pbufsize = bufsize; return 1; } /* EOF arrived on this file; set up next */ if (infile != stdin) fclose(infile); infile = NULL; argno++; } buf[0] = saveb0; *pbuf = buf; *pbufsize = savebufsize; return 0; /* true end of file */ }
int main(int argc, char *argv[]) { char *fs = NULL, *marg; int temp; cmdname = argv[0]; if (argc == 1) { fprintf(stderr, "Usage: %s [-f programfile | 'program'] [-Ffieldsep] [-v var=value] [files]\n", cmdname); exit(1); } signal(SIGFPE, fpecatch); yyin = NULL; symtab = makesymtab(NSYMTAB); while (argc > 1 && argv[1][0] == '-' && argv[1][1] != '\0') { if (strcmp(argv[1], "--") == 0) { /* explicit end of args */ argc--; argv++; break; } switch (argv[1][1]) { case 's': if (strcmp(argv[1], "-safe") == 0) safe = 1; break; case 'f': /* next argument is program filename */ argc--; argv++; if (argc <= 1) FATAL("no program filename"); pfile[npfile++] = argv[1]; break; case 'F': /* set field separator */ if (argv[1][2] != 0) { /* arg is -Fsomething */ if (argv[1][2] == 't' && argv[1][3] == 0) /* wart: t=>\t */ fs = "\t"; else if (argv[1][2] != 0) fs = &argv[1][2]; } else { /* arg is -F something */ argc--; argv++; if (argc > 1 && argv[1][0] == 't' && argv[1][1] == 0) /* wart: t=>\t */ fs = "\t"; else if (argc > 1 && argv[1][0] != 0) fs = &argv[1][0]; } if (fs == NULL || *fs == '\0') WARNING("field separator FS is empty"); break; case 'v': /* -v a=1 to be done NOW. one -v for each */ if (argv[1][2] == '\0' && --argc > 1 && isclvar((++argv)[1])) setclvar(argv[1]); break; case 'm': /* more memory: -mr=record, -mf=fields */ /* no longer needed */ marg = argv[1]; if (argv[1][3]) temp = atoi(&argv[1][3]); else { argv++; argc--; temp = atoi(&argv[1][0]); } switch (marg[2]) { case 'r': recsize = temp; break; case 'f': nfields = temp; break; default: FATAL("unknown option %s\n", marg); } break; case 'd': dbg = atoi(&argv[1][2]); if (dbg == 0) dbg = 1; printf("awk %s\n", version); break; case 'V': /* added for exptools "standard" */ printf("awk %s\n", version); exit(0); break; default: WARNING("unknown option %s ignored", argv[1]); break; } argc--; argv++; } /* argv[1] is now the first argument */ if (npfile == 0) { /* no -f; first argument is program */ if (argc <= 1) { if (dbg) exit(0); FATAL("no program given"); } dprintf( ("program = |%s|\n", argv[1]) ); lexprog = argv[1]; argc--; argv++; } recinit(recsize); syminit(); compile_time = 1; argv[0] = cmdname; /* put prog name at front of arglist */ dprintf( ("argc=%d, argv[0]=%s\n", argc, argv[0]) ); arginit(argc, argv); if (!safe) envinit(environ); yyparse(); if (fs) *FS = qstring(fs, '\0'); dprintf( ("errorflag=%d\n", errorflag) ); if (errorflag == 0) { compile_time = 0; run(winner); } else bracecheck(); return(errorflag); }
int getrec(unsigned char **buf, int *bufsize) { int c, saved; static int firsttime = 1; if (firsttime) { firsttime = 0; initgetrec(); } dprintf( ("RS=<%s>, FS=<%s>, ARGC=%d, FILENAME=%s\n", *RS ? *RS : tostring(""), *FS ? *FS : tostring(""), (int) *ARGC, *FILENAME ? *FILENAME : tostring("")) ); donefld = 0; donerec = 1; if (*bufsize == 0) { if ((*buf = malloc(*bufsize = CHUNK)) == NULL) error(MM_ERROR, outofspace, "getrec"); **buf = '\0'; } saved = (*buf)[0]; (*buf)[0] = 0; while (argno < *ARGC || infile == stdin) { dprintf( ("argno=%d, file=|%s|\n", argno, file) ) ; if (infile == NULL) { /* have to open a new file */ file = getargv(argno); if (*file == '\0') { /* it's been zapped */ argno++; continue; } if (isclvar(file)) { /* a var=value arg */ setclvar(file); argno++; continue; } *FILENAME = file; dprintf( ("opening file %s\n", file) ); if (*file == '-' && *(file+1) == '\0') infile = stdin; else if ((infile = fopen((char *)file, "r")) == NULL) error(MM_ERROR, badopen, file, strerror(errno)); setfval(fnrloc, 0.0); } c = readrec(buf, bufsize, infile); if (c != 0 || (*buf)[0] != '\0') { /* normal record */ if (*buf == record) { if (!(recloc->tval & DONTFREE)) xfree(recloc->sval); recloc->sval = record; recloc->tval = REC | STR | DONTFREE; (void)is2number(0, recloc); } setfval(nrloc, nrloc->fval+1); setfval(fnrloc, fnrloc->fval+1); return 1; } /* EOF arrived on this file; set up next */ if (infile != stdin) fclose(infile); infile = NULL; argno++; } /* * POSIX.2 requires that NF stick with its last value * at the start of the END code. The most straightforward * way to do this is to restore the contents of record * [==buf when called from program()] so that getnf() will * recompute the same NF value unless something strange * occurs. This has the side effect of $0...$NF *also* * having sticky values into END, but that seems to match * the spirit of POSIX.2's rule for NF. */ if (posix) (*buf)[0] = saved; return 0; /* true end of file */ }