22 |
|
|
23 |
|
#define isblnk(c) (igneol ? isspace(c) : ((c)==' ')|((c)=='\t')) |
24 |
|
|
25 |
< |
#define INBSIZ 16384 /* longest record */ |
26 |
< |
#define MAXCOL 32 /* number of columns recorded */ |
25 |
> |
#define INBSIZ 16384 /* longest record */ |
26 |
> |
#define MAXCOL 32 /* number of columns recorded */ |
27 |
|
|
28 |
< |
/* field type specifications */ |
29 |
< |
#define F_NUL 0 /* empty */ |
30 |
< |
#define F_TYP 0x7000 /* mask for type */ |
31 |
< |
#define F_WID 0x0fff /* mask for width */ |
32 |
< |
#define T_LIT 0x1000 /* string literal */ |
33 |
< |
#define T_STR 0x2000 /* string variable */ |
34 |
< |
#define T_NUM 0x3000 /* numeric value */ |
28 |
> |
/* field type specifications */ |
29 |
> |
#define F_NUL 0 /* empty */ |
30 |
> |
#define F_TYP 0x7000 /* mask for type */ |
31 |
> |
#define F_WID 0x0fff /* mask for width */ |
32 |
> |
#define T_LIT 0x1000 /* string literal */ |
33 |
> |
#define T_STR 0x2000 /* string variable */ |
34 |
> |
#define T_NUM 0x3000 /* numeric value */ |
35 |
|
|
36 |
< |
struct strvar { /* string variable */ |
36 |
> |
struct strvar { /* string variable */ |
37 |
|
char *name; |
38 |
|
char *val; |
39 |
|
char *preset; |
40 |
|
struct strvar *next; |
41 |
|
}; |
42 |
|
|
43 |
< |
struct field { /* record format structure */ |
44 |
< |
int type; /* type of field (& width) */ |
43 |
> |
struct field { /* record format structure */ |
44 |
> |
int type; /* type of field (& width) */ |
45 |
|
union { |
46 |
< |
char *sl; /* string literal */ |
47 |
< |
struct strvar *sv; /* string variable */ |
48 |
< |
char *nv; /* numeric variable */ |
49 |
< |
EPNODE *ne; /* numeric expression */ |
50 |
< |
} f; /* field contents */ |
51 |
< |
struct field *next; /* next field in record */ |
46 |
> |
char *sl; /* string literal */ |
47 |
> |
struct strvar *sv; /* string variable */ |
48 |
> |
char *nv; /* numeric variable */ |
49 |
> |
EPNODE *ne; /* numeric expression */ |
50 |
> |
} f; /* field contents */ |
51 |
> |
struct field *next; /* next field in record */ |
52 |
|
}; |
53 |
|
|
54 |
|
#define savqstr(s) strcpy(emalloc(strlen(s)+1),s) |
55 |
|
#define freqstr(s) efree(s) |
56 |
|
|
57 |
|
static int getinputrec(FILE *fp); |
58 |
< |
static void scaninp(void), advinp(void), passinp(void), skipinp(void); |
58 |
> |
static void scaninp(void), skipinp(void), advinp(int skip); |
59 |
|
static void putrec(void), putout(void), nbsynch(void); |
60 |
|
static int getrec(void); |
61 |
|
static void execute(char *file); |
93 |
|
int unbuff = 0; /* unbuffered output (flush each record) */ |
94 |
|
|
95 |
|
struct { |
96 |
< |
FILE *fin; /* input file */ |
97 |
< |
int chr; /* next character */ |
98 |
< |
char *beg; /* home position */ |
99 |
< |
char *pos; /* scan position */ |
100 |
< |
char *end; /* read position */ |
101 |
< |
} ipb; /* circular lookahead buffer */ |
96 |
> |
FILE *fin; /* input file */ |
97 |
> |
int chr; /* next character */ |
98 |
> |
char *beg; /* home position */ |
99 |
> |
char *pos; /* scan position */ |
100 |
> |
char *end; /* read position */ |
101 |
> |
} ipb; /* circular lookahead buffer */ |
102 |
|
|
103 |
|
|
104 |
|
int |
240 |
|
#ifdef getc_unlocked /* avoid lock/unlock overhead */ |
241 |
|
flockfile(stdout); |
242 |
|
#endif |
243 |
< |
if (noinput) { /* produce a single output record */ |
243 |
> |
if (noinput) { /* produce a single output record */ |
244 |
|
if (i < argc) { |
245 |
|
eputs(argv[0]); |
246 |
|
eputs(": file argument(s) incompatible with -n\n"); |
255 |
|
eputs(": options -p and -P require -i and -o formats\n"); |
256 |
|
quit(1); |
257 |
|
} |
258 |
< |
if (blnkeq) /* for efficiency */ |
258 |
> |
if (blnkeq) /* for efficiency */ |
259 |
|
nbsynch(); |
260 |
|
|
261 |
< |
if (i == argc) /* from stdin */ |
261 |
> |
if (i == argc) /* from stdin */ |
262 |
|
execute(NULL); |
263 |
< |
else /* from one or more files */ |
263 |
> |
else /* from one or more files */ |
264 |
|
for ( ; i < argc; i++) |
265 |
|
execute(argv[i]); |
266 |
|
|
270 |
|
|
271 |
|
|
272 |
|
static void |
273 |
< |
nbsynch(void) /* non-blank starting synch character */ |
273 |
> |
nbsynch(void) /* non-blank starting synch character */ |
274 |
|
{ |
275 |
|
if (inpfmt == NULL || (inpfmt->type & F_TYP) != T_LIT) |
276 |
|
return; |
305 |
|
|
306 |
|
|
307 |
|
static void |
308 |
< |
execute( /* process a file */ |
308 |
> |
execute( /* process a file */ |
309 |
|
char *file |
310 |
|
) |
311 |
|
{ |
348 |
|
colflg = 0; |
349 |
|
eclock++; |
350 |
|
if (!conditional || varvalue(condVN) > 0.0) { |
351 |
+ |
if (inpfmt != NULL) |
352 |
+ |
advinp(0); |
353 |
|
putout(); |
354 |
|
++nout; |
353 |
– |
advinp(); |
355 |
|
} else if (inpfmt != NULL) { |
356 |
< |
if (passive < 0) |
356 |
< |
passinp(); |
357 |
< |
else |
358 |
< |
advinp(); |
356 |
> |
advinp(1); |
357 |
|
} |
358 |
|
if (incnt && nrecs >= incnt) |
359 |
|
break; |
413 |
|
} |
414 |
|
|
415 |
|
double |
416 |
< |
chanvalue( /* return value for column n */ |
416 |
> |
chanvalue( /* return value for column n */ |
417 |
|
int n |
418 |
|
) |
419 |
|
{ |
452 |
|
while (*cp && *cp++ != sepchar) |
453 |
|
; |
454 |
|
|
455 |
< |
while (isspace(*cp)) /* some atof()'s don't like tabs */ |
455 |
> |
while (isspace(*cp)) /* some atof()'s don't like tabs */ |
456 |
|
cp++; |
457 |
|
|
458 |
|
if (n <= MAXCOL) { |
464 |
|
|
465 |
|
|
466 |
|
void |
467 |
< |
chanset( /* output column n */ |
467 |
> |
chanset( /* output column n */ |
468 |
|
int n, |
469 |
|
double v |
470 |
|
) |
480 |
|
|
481 |
|
|
482 |
|
void |
483 |
< |
bchanset( /* output binary channel n */ |
483 |
> |
bchanset( /* output binary channel n */ |
484 |
|
int n, |
485 |
|
double v |
486 |
|
) |
510 |
|
|
511 |
|
|
512 |
|
static void |
513 |
< |
readfmt( /* read record format */ |
513 |
> |
readfmt( /* read record format */ |
514 |
|
char *spec, |
515 |
|
int output |
516 |
|
) |
524 |
|
for (inptr = spec; *inptr; inptr++) |
525 |
|
if (*inptr == '$') |
526 |
|
break; |
527 |
< |
if (*inptr) /* inline */ |
527 |
> |
if (*inptr) /* inline */ |
528 |
|
inptr = spec; |
529 |
< |
else { /* from file */ |
529 |
> |
else { /* from file */ |
530 |
|
if ((fd = open(spec, 0)) == -1) { |
531 |
|
eputs(spec); |
532 |
|
eputs(": cannot open\n"); |
546 |
|
close(fd); |
547 |
|
(inptr=inpbuf+2)[res] = '\0'; |
548 |
|
} |
549 |
< |
f = &fmt; /* get fields */ |
549 |
> |
f = &fmt; /* get fields */ |
550 |
|
while ((res = readfield(&inptr)) != F_NUL) { |
551 |
|
f->next = (struct field *)emalloc(sizeof(struct field)); |
552 |
|
f = f->next; |
578 |
|
|
579 |
|
|
580 |
|
static int |
581 |
< |
readfield( /* get next field in format */ |
581 |
> |
readfield( /* get next field in format */ |
582 |
|
char **pp |
583 |
|
) |
584 |
|
{ |
645 |
|
|
646 |
|
|
647 |
|
struct strvar * |
648 |
< |
getsvar( /* get string variable */ |
648 |
> |
getsvar( /* get string variable */ |
649 |
|
char *svname |
650 |
|
) |
651 |
|
{ |
664 |
|
|
665 |
|
|
666 |
|
static void |
667 |
< |
svpreset( /* preset a string variable */ |
667 |
> |
svpreset( /* preset a string variable */ |
668 |
|
char *eqn |
669 |
|
) |
670 |
|
{ |
740 |
|
|
741 |
|
|
742 |
|
static int |
743 |
< |
getfield( /* get next field */ |
743 |
> |
getfield( /* get next field */ |
744 |
|
struct field *f |
745 |
|
) |
746 |
|
{ |
747 |
< |
static char buf[RMAXWORD+1]; /* no recursion! */ |
747 |
> |
static char buf[RMAXWORD+1]; /* no recursion! */ |
748 |
|
int delim, inword; |
749 |
|
double d; |
750 |
|
char *np; |
896 |
|
|
897 |
|
|
898 |
|
static void |
899 |
< |
initinp(FILE *fp) /* prepare lookahead buffer */ |
899 |
> |
initinp(FILE *fp) /* prepare lookahead buffer */ |
900 |
|
|
901 |
|
{ |
902 |
|
ipb.fin = fp; |
914 |
|
return; |
915 |
|
if (++ipb.pos >= &inpbuf[INBSIZ]) |
916 |
|
ipb.pos = inpbuf; |
917 |
< |
if (ipb.pos == ipb.end) { /* new character */ |
917 |
> |
if (ipb.pos == ipb.end) { /* new character */ |
918 |
|
if ((ipb.chr = getc(ipb.fin)) != EOF) { |
919 |
|
*ipb.end = ipb.chr; |
920 |
|
if (++ipb.end >= &inpbuf[INBSIZ]) |
928 |
|
|
929 |
|
|
930 |
|
static void |
931 |
< |
advinp(void) /* move home to current position */ |
931 |
> |
skipinp(void) /* rewind position and advance 1 */ |
932 |
|
{ |
933 |
< |
ipb.beg = ipb.pos; |
933 |
> |
if (ipb.beg == NULL) /* can't fully rewind? */ |
934 |
> |
ipb.beg = ipb.end; |
935 |
> |
ipb.pos = ipb.beg; |
936 |
> |
ipb.chr = *ipb.pos; |
937 |
> |
if (passive) /* transmit unmatched character? */ |
938 |
> |
putchar(ipb.chr); |
939 |
> |
if (++ipb.beg >= &inpbuf[INBSIZ]) |
940 |
> |
ipb.beg = inpbuf; |
941 |
> |
scaninp(); |
942 |
|
} |
943 |
|
|
944 |
|
|
945 |
|
static void |
946 |
< |
passinp(void) /* pass beginning to current position */ |
946 |
> |
advinp(int skip) /* advance home to current position */ |
947 |
|
{ |
948 |
< |
if (!passive | (ipb.beg == NULL)) { |
949 |
< |
advinp(); |
948 |
> |
if (!skip | (passive >= 0)) { |
949 |
> |
ipb.beg = ipb.pos; /* no need to copy input */ |
950 |
|
return; |
951 |
|
} |
952 |
< |
while (ipb.beg != ipb.pos) { /* transfer buffer unaltered */ |
952 |
> |
if (ipb.beg == NULL) { /* buffer overflowed a bit? */ |
953 |
> |
wputs("buffer overflow\n"); |
954 |
> |
puts("\n*** MISSING DATA ***"); |
955 |
> |
ipb.beg = ipb.end; |
956 |
> |
} |
957 |
> |
while (ipb.beg != ipb.pos) { /* copy buffer to current */ |
958 |
|
putchar(*ipb.beg); |
959 |
|
if (++ipb.beg >= &inpbuf[INBSIZ]) |
960 |
|
ipb.beg = inpbuf; |
961 |
|
} |
951 |
– |
} |
952 |
– |
|
953 |
– |
|
954 |
– |
static void |
955 |
– |
skipinp(void) /* rewind position and advance 1 */ |
956 |
– |
{ |
957 |
– |
if (ipb.beg == NULL) /* full */ |
958 |
– |
ipb.beg = ipb.end; |
959 |
– |
ipb.pos = ipb.beg; |
960 |
– |
ipb.chr = *ipb.pos; |
961 |
– |
if (passive) /* transmit unmatched character? */ |
962 |
– |
putchar(ipb.chr); |
963 |
– |
if (++ipb.beg >= &inpbuf[INBSIZ]) |
964 |
– |
ipb.beg = inpbuf; |
965 |
– |
scaninp(); |
962 |
|
} |
963 |
|
|
964 |
|
|