1 |
#ifndef lint |
2 |
static const char RCSid[] = "$Id: rcalc.c,v 1.6 2003/07/03 22:41:44 schorsch Exp $"; |
3 |
#endif |
4 |
/* |
5 |
* rcalc.c - record calculator program. |
6 |
* |
7 |
* 9/11/87 |
8 |
*/ |
9 |
|
10 |
#include <stdlib.h> |
11 |
#include <stdio.h> |
12 |
#include <string.h> |
13 |
#include <math.h> |
14 |
#include <ctype.h> |
15 |
|
16 |
#include "platform.h" |
17 |
#include "calcomp.h" |
18 |
#include "rterror.h" |
19 |
|
20 |
#ifdef CPM |
21 |
#define getc agetc /* text files only, right? */ |
22 |
#endif |
23 |
|
24 |
#define isnum(c) (isdigit(c) || (c)=='-' || (c)=='.' \ |
25 |
|| (c)=='+' || (c)=='e' || (c)=='E') |
26 |
|
27 |
#define isblnk(c) (igneol ? isspace(c) : (c)==' '||(c)=='\t') |
28 |
|
29 |
#define INBSIZ 4096 /* longest record */ |
30 |
#define MAXCOL 32 /* number of columns recorded */ |
31 |
|
32 |
/* field type specifications */ |
33 |
#define F_NUL 0 /* empty */ |
34 |
#define F_TYP 0x7000 /* mask for type */ |
35 |
#define F_WID 0x0fff /* mask for width */ |
36 |
#define T_LIT 0x1000 /* string literal */ |
37 |
#define T_STR 0x2000 /* string variable */ |
38 |
#define T_NUM 0x3000 /* numeric value */ |
39 |
|
40 |
struct strvar { /* string variable */ |
41 |
char *name; |
42 |
char *val; |
43 |
char *preset; |
44 |
struct strvar *next; |
45 |
}; |
46 |
|
47 |
struct field { /* record format structure */ |
48 |
int type; /* type of field (& width) */ |
49 |
union { |
50 |
char *sl; /* string literal */ |
51 |
struct strvar *sv; /* string variable */ |
52 |
char *nv; /* numeric variable */ |
53 |
EPNODE *ne; /* numeric expression */ |
54 |
} f; /* field contents */ |
55 |
struct field *next; /* next field in record */ |
56 |
}; |
57 |
|
58 |
#define savqstr(s) strcpy(emalloc(strlen(s)+1),s) |
59 |
#define freqstr(s) efree(s) |
60 |
|
61 |
static void scaninp(void), advinp(void), resetinp(void); |
62 |
static void putrec(void), putout(void), nbsynch(void); |
63 |
static int getrec(void); |
64 |
static void execute(char *file); |
65 |
static void initinp(FILE *fp); |
66 |
static void svpreset(char *eqn); |
67 |
static void readfmt(char *spec, int output); |
68 |
static int readfield(char **pp); |
69 |
static int getfield(struct field *f); |
70 |
static void chanset(int n, double v); |
71 |
static void bchanset(int n, double v); |
72 |
static struct strvar* getsvar(char *svname); |
73 |
|
74 |
struct field *inpfmt = NULL; /* input record format */ |
75 |
struct field *outfmt = NULL; /* output record structure */ |
76 |
struct strvar *svhead = NULL; /* string variables */ |
77 |
|
78 |
int blnkeq = 1; /* blanks compare equal? */ |
79 |
int igneol = 0; /* ignore end of line? */ |
80 |
char sepchar = '\t'; /* input/output separator */ |
81 |
int noinput = 0; /* no input records? */ |
82 |
int nbicols = 0; /* number of binary input columns */ |
83 |
int bocols = 0; /* produce binary output columns */ |
84 |
char inpbuf[INBSIZ]; /* input buffer */ |
85 |
double colval[MAXCOL]; /* input column values */ |
86 |
unsigned long colflg = 0; /* column retrieved flags */ |
87 |
int colpos; /* output column position */ |
88 |
|
89 |
int nowarn = 0; /* non-fatal diagnostic output */ |
90 |
int unbuff = 0; /* unbuffered output (flush each record) */ |
91 |
|
92 |
struct { |
93 |
FILE *fin; /* input file */ |
94 |
int chr; /* next character */ |
95 |
char *beg; /* home position */ |
96 |
char *pos; /* scan position */ |
97 |
char *end; /* read position */ |
98 |
} ipb; /* circular lookahead buffer */ |
99 |
|
100 |
|
101 |
int |
102 |
main( |
103 |
int argc, |
104 |
char *argv[] |
105 |
) |
106 |
{ |
107 |
int i; |
108 |
|
109 |
esupport |= E_VARIABLE|E_FUNCTION|E_INCHAN|E_OUTCHAN|E_RCONST; |
110 |
esupport &= ~(E_REDEFW); |
111 |
|
112 |
#ifdef BIGGERLIB |
113 |
biggerlib(); |
114 |
#endif |
115 |
varset("PI", ':', 3.14159265358979323846); |
116 |
|
117 |
for (i = 1; i < argc && argv[i][0] == '-'; i++) |
118 |
switch (argv[i][1]) { |
119 |
case 'b': |
120 |
blnkeq = !blnkeq; |
121 |
break; |
122 |
case 'l': |
123 |
igneol = !igneol; |
124 |
break; |
125 |
case 't': |
126 |
sepchar = argv[i][2]; |
127 |
break; |
128 |
case 's': |
129 |
svpreset(argv[++i]); |
130 |
break; |
131 |
case 'f': |
132 |
fcompile(argv[++i]); |
133 |
break; |
134 |
case 'e': |
135 |
scompile(argv[++i], NULL, 0); |
136 |
break; |
137 |
case 'n': |
138 |
noinput = 1; |
139 |
break; |
140 |
case 'i': |
141 |
switch (argv[i][2]) { |
142 |
case '\0': |
143 |
nbicols = 0; |
144 |
readfmt(argv[++i], 0); |
145 |
break; |
146 |
case 'a': |
147 |
nbicols = 0; |
148 |
break; |
149 |
case 'd': |
150 |
if (isdigit(argv[i][3])) |
151 |
nbicols = atoi(argv[i]+3); |
152 |
else |
153 |
nbicols = 1; |
154 |
break; |
155 |
case 'f': |
156 |
if (isdigit(argv[i][3])) |
157 |
nbicols = -atoi(argv[i]+3); |
158 |
else |
159 |
nbicols = -1; |
160 |
break; |
161 |
default: |
162 |
goto userr; |
163 |
} |
164 |
break; |
165 |
case 'o': |
166 |
switch (argv[i][2]) { |
167 |
case '\0': |
168 |
bocols = 0; |
169 |
readfmt(argv[++i], 1); |
170 |
break; |
171 |
case 'a': |
172 |
bocols = 0; |
173 |
break; |
174 |
case 'd': |
175 |
bocols = 1; |
176 |
break; |
177 |
case 'f': |
178 |
bocols = -1; |
179 |
break; |
180 |
} |
181 |
break; |
182 |
case 'w': |
183 |
nowarn = !nowarn; |
184 |
break; |
185 |
case 'u': |
186 |
unbuff = !unbuff; |
187 |
break; |
188 |
default:; |
189 |
userr: |
190 |
eputs("Usage: "); |
191 |
eputs(argv[0]); |
192 |
eputs(" [-b][-l][-n][-w][-u][-tS][-s svar=sval][-e expr][-f source][-i infmt][-o outfmt] [file]\n"); |
193 |
quit(1); |
194 |
} |
195 |
|
196 |
if (noinput) { /* produce a single output record */ |
197 |
eclock++; |
198 |
putout(); |
199 |
quit(0); |
200 |
} |
201 |
|
202 |
if (blnkeq) /* for efficiency */ |
203 |
nbsynch(); |
204 |
|
205 |
if (i == argc) /* from stdin */ |
206 |
execute(NULL); |
207 |
else /* from one or more files */ |
208 |
for ( ; i < argc; i++) |
209 |
execute(argv[i]); |
210 |
|
211 |
quit(0); |
212 |
} |
213 |
|
214 |
|
215 |
static void |
216 |
nbsynch(void) /* non-blank starting synch character */ |
217 |
{ |
218 |
if (inpfmt == NULL || (inpfmt->type & F_TYP) != T_LIT) |
219 |
return; |
220 |
while (isblnk(*inpfmt->f.sl)) |
221 |
inpfmt->f.sl++; |
222 |
if (!*inpfmt->f.sl) |
223 |
inpfmt = inpfmt->next; |
224 |
} |
225 |
|
226 |
|
227 |
int |
228 |
getinputrec( /* get next input record */ |
229 |
FILE *fp |
230 |
) |
231 |
{ |
232 |
if (inpfmt != NULL) |
233 |
return(getrec()); |
234 |
if (nbicols > 0) |
235 |
return(fread(inpbuf, sizeof(double), |
236 |
nbicols, fp) == nbicols); |
237 |
if (nbicols < 0) |
238 |
return(fread(inpbuf, sizeof(float), |
239 |
-nbicols, fp) == -nbicols); |
240 |
return(fgets(inpbuf, INBSIZ, fp) != NULL); |
241 |
} |
242 |
|
243 |
|
244 |
static void |
245 |
execute( /* process a file */ |
246 |
char *file |
247 |
) |
248 |
{ |
249 |
int conditional = vardefined("cond"); |
250 |
long nrecs = 0; |
251 |
long nout = 0; |
252 |
FILE *fp; |
253 |
|
254 |
if (file == NULL) |
255 |
fp = stdin; |
256 |
else if ((fp = fopen(file, "r")) == NULL) { |
257 |
eputs(file); |
258 |
eputs(": cannot open\n"); |
259 |
quit(1); |
260 |
} |
261 |
if (inpfmt != NULL) |
262 |
initinp(fp); |
263 |
|
264 |
while (getinputrec(fp)) { |
265 |
varset("recno", '=', (double)++nrecs); |
266 |
colflg = 0; |
267 |
eclock++; |
268 |
if (!conditional || varvalue("cond") > 0.0) { |
269 |
varset("outno", '=', (double)++nout); |
270 |
putout(); |
271 |
} |
272 |
} |
273 |
fclose(fp); |
274 |
} |
275 |
|
276 |
|
277 |
static void |
278 |
putout(void) /* produce an output record */ |
279 |
{ |
280 |
|
281 |
colpos = 0; |
282 |
if (outfmt != NULL) |
283 |
putrec(); |
284 |
else if (bocols) |
285 |
chanout(bchanset); |
286 |
else |
287 |
chanout(chanset); |
288 |
if (colpos && !bocols) |
289 |
putchar('\n'); |
290 |
if (unbuff) |
291 |
fflush(stdout); |
292 |
} |
293 |
|
294 |
|
295 |
double |
296 |
chanvalue( /* return value for column n */ |
297 |
int n |
298 |
) |
299 |
{ |
300 |
int i; |
301 |
register char *cp; |
302 |
|
303 |
if (noinput || inpfmt != NULL) { |
304 |
eputs("no column input\n"); |
305 |
quit(1); |
306 |
} |
307 |
if (n < 1) { |
308 |
eputs("illegal channel number\n"); |
309 |
quit(1); |
310 |
} |
311 |
if (nbicols > 0) { |
312 |
if (n > nbicols) |
313 |
return(0.0); |
314 |
cp = inpbuf + (n-1)*sizeof(double); |
315 |
return(*(double *)cp); |
316 |
} |
317 |
if (nbicols < 0) { |
318 |
if (n > -nbicols) |
319 |
return(0.0); |
320 |
cp = inpbuf + (n-1)*sizeof(float); |
321 |
return(*(float *)cp); |
322 |
} |
323 |
if (n <= MAXCOL && colflg & 1L<<(n-1)) |
324 |
return(colval[n-1]); |
325 |
|
326 |
cp = inpbuf; |
327 |
for (i = 1; i < n; i++) |
328 |
if (blnkeq && isspace(sepchar)) { |
329 |
while (isspace(*cp)) |
330 |
cp++; |
331 |
while (*cp && !isspace(*cp)) |
332 |
cp++; |
333 |
} else |
334 |
while (*cp && *cp++ != sepchar) |
335 |
; |
336 |
|
337 |
while (isspace(*cp)) /* some atof()'s don't like tabs */ |
338 |
cp++; |
339 |
|
340 |
if (n <= MAXCOL) { |
341 |
colflg |= 1L<<(n-1); |
342 |
return(colval[n-1] = atof(cp)); |
343 |
} else |
344 |
return(atof(cp)); |
345 |
} |
346 |
|
347 |
|
348 |
void |
349 |
chanset( /* output column n */ |
350 |
int n, |
351 |
double v |
352 |
) |
353 |
{ |
354 |
if (colpos == 0) /* no leading separator */ |
355 |
colpos = 1; |
356 |
while (colpos < n) { |
357 |
putchar(sepchar); |
358 |
colpos++; |
359 |
} |
360 |
printf("%.9g", v); |
361 |
} |
362 |
|
363 |
|
364 |
void |
365 |
bchanset( /* output binary channel n */ |
366 |
int n, |
367 |
double v |
368 |
) |
369 |
{ |
370 |
static char zerobuf[sizeof(double)]; |
371 |
|
372 |
while (++colpos < n) |
373 |
fwrite(zerobuf, |
374 |
bocols>0 ? sizeof(double) : sizeof(float), |
375 |
1, stdout); |
376 |
if (bocols > 0) |
377 |
fwrite(&v, sizeof(double), 1, stdout); |
378 |
else { |
379 |
float fval = v; |
380 |
fwrite(&fval, sizeof(float), 1, stdout); |
381 |
} |
382 |
} |
383 |
|
384 |
|
385 |
static void |
386 |
readfmt( /* read record format */ |
387 |
char *spec, |
388 |
int output |
389 |
) |
390 |
{ |
391 |
int fd; |
392 |
char *inptr; |
393 |
struct field fmt; |
394 |
int res; |
395 |
register struct field *f; |
396 |
/* check for inline format */ |
397 |
for (inptr = spec; *inptr; inptr++) |
398 |
if (*inptr == '$') |
399 |
break; |
400 |
if (*inptr) /* inline */ |
401 |
inptr = spec; |
402 |
else { /* from file */ |
403 |
if ((fd = open(spec, 0)) == -1) { |
404 |
eputs(spec); |
405 |
eputs(": cannot open\n"); |
406 |
quit(1); |
407 |
} |
408 |
res = read(fd, inpbuf+1, INBSIZ-1); |
409 |
if (res <= 0 || res >= INBSIZ-1) { |
410 |
eputs(spec); |
411 |
if (res < 0) |
412 |
eputs(": read error\n"); |
413 |
else if (res == 0) |
414 |
eputs(": empty file\n"); |
415 |
else if (res >= INBSIZ-1) |
416 |
eputs(": format too long\n"); |
417 |
quit(1); |
418 |
} |
419 |
close(fd); |
420 |
(inptr=inpbuf+1)[res] = '\0'; |
421 |
} |
422 |
f = &fmt; /* get fields */ |
423 |
while ((res = readfield(&inptr)) != F_NUL) { |
424 |
f->next = (struct field *)emalloc(sizeof(struct field)); |
425 |
f = f->next; |
426 |
f->type = res; |
427 |
switch (res & F_TYP) { |
428 |
case T_LIT: |
429 |
f->f.sl = savqstr(inpbuf); |
430 |
break; |
431 |
case T_STR: |
432 |
f->f.sv = getsvar(inpbuf); |
433 |
break; |
434 |
case T_NUM: |
435 |
if (output) |
436 |
f->f.ne = eparse(inpbuf); |
437 |
else |
438 |
f->f.nv = savestr(inpbuf); |
439 |
break; |
440 |
} |
441 |
/* add final newline if necessary */ |
442 |
if (!igneol && *inptr == '\0' && inptr[-1] != '\n') |
443 |
inptr = "\n"; |
444 |
} |
445 |
f->next = NULL; |
446 |
if (output) |
447 |
outfmt = fmt.next; |
448 |
else |
449 |
inpfmt = fmt.next; |
450 |
} |
451 |
|
452 |
|
453 |
static int |
454 |
readfield( /* get next field in format */ |
455 |
register char **pp |
456 |
) |
457 |
{ |
458 |
int type = F_NUL; |
459 |
int width = 0; |
460 |
register char *cp; |
461 |
|
462 |
cp = inpbuf; |
463 |
while (cp < &inpbuf[INBSIZ-1] && **pp != '\0') { |
464 |
width++; |
465 |
switch (type) { |
466 |
case F_NUL: |
467 |
if (**pp == '$') { |
468 |
(*pp)++; |
469 |
width++; |
470 |
if (**pp == '{') { |
471 |
type = T_NUM; |
472 |
(*pp)++; |
473 |
continue; |
474 |
} else if (**pp == '(') { |
475 |
type = T_STR; |
476 |
(*pp)++; |
477 |
continue; |
478 |
} else if (**pp != '$') { |
479 |
eputs("format error\n"); |
480 |
quit(1); |
481 |
} |
482 |
width--; |
483 |
} |
484 |
type = T_LIT; |
485 |
*cp++ = *(*pp)++; |
486 |
continue; |
487 |
case T_LIT: |
488 |
if (**pp == '$') { |
489 |
width--; |
490 |
break; |
491 |
} |
492 |
*cp++ = *(*pp)++; |
493 |
continue; |
494 |
case T_NUM: |
495 |
if (**pp == '}') { |
496 |
(*pp)++; |
497 |
break; |
498 |
} |
499 |
if (!isspace(**pp)) |
500 |
*cp++ = **pp; |
501 |
(*pp)++; |
502 |
continue; |
503 |
case T_STR: |
504 |
if (**pp == ')') { |
505 |
(*pp)++; |
506 |
break; |
507 |
} |
508 |
if (!isspace(**pp)) |
509 |
*cp++ = **pp; |
510 |
(*pp)++; |
511 |
continue; |
512 |
} |
513 |
break; |
514 |
} |
515 |
*cp = '\0'; |
516 |
return(type | width); |
517 |
} |
518 |
|
519 |
|
520 |
struct strvar * |
521 |
getsvar( /* get string variable */ |
522 |
char *svname |
523 |
) |
524 |
{ |
525 |
register struct strvar *sv; |
526 |
|
527 |
for (sv = svhead; sv != NULL; sv = sv->next) |
528 |
if (!strcmp(sv->name, svname)) |
529 |
return(sv); |
530 |
sv = (struct strvar *)emalloc(sizeof(struct strvar)); |
531 |
sv->name = savqstr(svname); |
532 |
sv->val = sv->preset = NULL; |
533 |
sv->next = svhead; |
534 |
svhead = sv; |
535 |
return(sv); |
536 |
} |
537 |
|
538 |
|
539 |
static void |
540 |
svpreset( /* preset a string variable */ |
541 |
char *eqn |
542 |
) |
543 |
{ |
544 |
register struct strvar *sv; |
545 |
register char *val; |
546 |
|
547 |
for (val = eqn; *val != '='; val++) |
548 |
if (!*val) |
549 |
return; |
550 |
*val++ = '\0'; |
551 |
sv = getsvar(eqn); |
552 |
if (sv->preset != NULL) |
553 |
freqstr(sv->preset); |
554 |
if (sv->val != NULL) |
555 |
freqstr(sv->val); |
556 |
sv->val = sv->preset = savqstr(val); |
557 |
*--val = '='; |
558 |
} |
559 |
|
560 |
|
561 |
static void |
562 |
clearrec(void) /* clear input record variables */ |
563 |
{ |
564 |
register struct field *f; |
565 |
|
566 |
for (f = inpfmt; f != NULL; f = f->next) |
567 |
switch (f->type & F_TYP) { |
568 |
case T_NUM: |
569 |
dremove(f->f.nv); |
570 |
break; |
571 |
case T_STR: |
572 |
if (f->f.sv->val != f->f.sv->preset) { |
573 |
freqstr(f->f.sv->val); |
574 |
f->f.sv->val = f->f.sv->preset; |
575 |
} |
576 |
break; |
577 |
} |
578 |
} |
579 |
|
580 |
|
581 |
static int |
582 |
getrec(void) /* get next record from file */ |
583 |
{ |
584 |
int eatline; |
585 |
register struct field *f; |
586 |
|
587 |
while (ipb.chr != EOF) { |
588 |
eatline = !igneol && ipb.chr != '\n'; |
589 |
if (blnkeq) /* beware of nbsynch() */ |
590 |
while (isblnk(ipb.chr)) |
591 |
scaninp(); |
592 |
clearrec(); /* start with fresh record */ |
593 |
for (f = inpfmt; f != NULL; f = f->next) |
594 |
if (getfield(f) == -1) |
595 |
break; |
596 |
if (f == NULL) { |
597 |
advinp(); |
598 |
return(1); |
599 |
} |
600 |
resetinp(); |
601 |
if (eatline) { /* eat rest of line */ |
602 |
while (ipb.chr != '\n') { |
603 |
if (ipb.chr == EOF) |
604 |
return(0); |
605 |
scaninp(); |
606 |
} |
607 |
scaninp(); |
608 |
advinp(); |
609 |
} |
610 |
} |
611 |
return(0); |
612 |
} |
613 |
|
614 |
|
615 |
static int |
616 |
getfield( /* get next field */ |
617 |
register struct field *f |
618 |
) |
619 |
{ |
620 |
static char buf[RMAXWORD+1]; /* no recursion! */ |
621 |
int delim, inword; |
622 |
double d; |
623 |
char *np; |
624 |
register char *cp; |
625 |
|
626 |
switch (f->type & F_TYP) { |
627 |
case T_LIT: |
628 |
cp = f->f.sl; |
629 |
do { |
630 |
if (blnkeq && isblnk(*cp)) { |
631 |
if (!isblnk(ipb.chr)) |
632 |
return(-1); |
633 |
do |
634 |
cp++; |
635 |
while (isblnk(*cp)); |
636 |
do |
637 |
scaninp(); |
638 |
while (isblnk(ipb.chr)); |
639 |
} else if (*cp == ipb.chr) { |
640 |
cp++; |
641 |
scaninp(); |
642 |
} else |
643 |
return(-1); |
644 |
} while (*cp); |
645 |
return(0); |
646 |
case T_STR: |
647 |
if (f->next == NULL || (f->next->type & F_TYP) != T_LIT) |
648 |
delim = EOF; |
649 |
else |
650 |
delim = f->next->f.sl[0]; |
651 |
cp = buf; |
652 |
do { |
653 |
if (ipb.chr == EOF) |
654 |
inword = 0; |
655 |
else if (blnkeq && delim != EOF) |
656 |
inword = isblnk(delim) ? |
657 |
!isblnk(ipb.chr) |
658 |
: ipb.chr != delim; |
659 |
else |
660 |
inword = cp-buf < (f->type & F_WID); |
661 |
if (inword) { |
662 |
*cp++ = ipb.chr; |
663 |
scaninp(); |
664 |
} |
665 |
} while (inword && cp < &buf[RMAXWORD]); |
666 |
*cp = '\0'; |
667 |
if (f->f.sv->val == NULL) |
668 |
f->f.sv->val = savqstr(buf); /* first setting */ |
669 |
else if (strcmp(f->f.sv->val, buf)) |
670 |
return(-1); /* doesn't match! */ |
671 |
return(0); |
672 |
case T_NUM: |
673 |
if (f->next == NULL || (f->next->type & F_TYP) != T_LIT) |
674 |
delim = EOF; |
675 |
else |
676 |
delim = f->next->f.sl[0]; |
677 |
np = NULL; |
678 |
cp = buf; |
679 |
do { |
680 |
if (!((np==NULL&&isblnk(ipb.chr)) || isnum(ipb.chr))) |
681 |
inword = 0; |
682 |
else if (blnkeq && delim != EOF) |
683 |
inword = isblnk(delim) ? |
684 |
!isblnk(ipb.chr) |
685 |
: ipb.chr != delim; |
686 |
else |
687 |
inword = cp-buf < (f->type & F_WID); |
688 |
if (inword) { |
689 |
if (np==NULL && !isblnk(ipb.chr)) |
690 |
np = cp; |
691 |
*cp++ = ipb.chr; |
692 |
scaninp(); |
693 |
} |
694 |
} while (inword && cp < &buf[RMAXWORD]); |
695 |
*cp = '\0'; |
696 |
d = np==NULL ? 0. : atof(np); |
697 |
if (!vardefined(f->f.nv)) |
698 |
varset(f->f.nv, '=', d); /* first setting */ |
699 |
else if ((d = (varvalue(f->f.nv)-d)/(d==0.?1.:d)) > .001 |
700 |
|| d < -.001) |
701 |
return(-1); /* doesn't match! */ |
702 |
return(0); |
703 |
} |
704 |
return -1; /* pro forma return */ |
705 |
} |
706 |
|
707 |
|
708 |
static void |
709 |
putrec(void) /* output a record */ |
710 |
{ |
711 |
char fmt[32]; |
712 |
register int n; |
713 |
register struct field *f; |
714 |
int adlast, adnext; |
715 |
|
716 |
adlast = 0; |
717 |
for (f = outfmt; f != NULL; f = f->next) { |
718 |
adnext = blnkeq && |
719 |
f->next != NULL && |
720 |
!( (f->next->type&F_TYP) == T_LIT && |
721 |
f->next->f.sl[0] == ' ' ); |
722 |
switch (f->type & F_TYP) { |
723 |
case T_LIT: |
724 |
fputs(f->f.sl, stdout); |
725 |
adlast = f->f.sl[(f->type&F_WID)-1] != ' '; |
726 |
break; |
727 |
case T_STR: |
728 |
if (f->f.sv->val == NULL) { |
729 |
eputs(f->f.sv->name); |
730 |
eputs(": undefined string\n"); |
731 |
quit(1); |
732 |
} |
733 |
n = (int)(f->type & F_WID) - strlen(f->f.sv->val); |
734 |
if (adlast) |
735 |
fputs(f->f.sv->val, stdout); |
736 |
if (!(adlast && adnext)) |
737 |
while (n-- > 0) |
738 |
putchar(' '); |
739 |
if (!adlast) |
740 |
fputs(f->f.sv->val, stdout); |
741 |
adlast = 1; |
742 |
break; |
743 |
case T_NUM: |
744 |
n = f->type & F_WID; |
745 |
if (adlast && adnext) |
746 |
strcpy(fmt, "%g"); |
747 |
else if (adlast) |
748 |
sprintf(fmt, "%%-%dg", n); |
749 |
else |
750 |
sprintf(fmt, "%%%dg", n); |
751 |
printf(fmt, evalue(f->f.ne)); |
752 |
adlast = 1; |
753 |
break; |
754 |
} |
755 |
} |
756 |
} |
757 |
|
758 |
|
759 |
static void |
760 |
initinp(FILE *fp) /* prepare lookahead buffer */ |
761 |
|
762 |
{ |
763 |
ipb.fin = fp; |
764 |
ipb.beg = ipb.end = inpbuf; |
765 |
ipb.pos = inpbuf-1; /* position before beginning */ |
766 |
ipb.chr = '\0'; |
767 |
scaninp(); |
768 |
} |
769 |
|
770 |
|
771 |
static void |
772 |
scaninp(void) /* scan next character */ |
773 |
{ |
774 |
if (ipb.chr == EOF) |
775 |
return; |
776 |
if (++ipb.pos >= &inpbuf[INBSIZ]) |
777 |
ipb.pos = inpbuf; |
778 |
if (ipb.pos == ipb.end) { /* new character */ |
779 |
if ((ipb.chr = getc(ipb.fin)) != EOF) { |
780 |
*ipb.end = ipb.chr; |
781 |
if (++ipb.end >= &inpbuf[INBSIZ]) |
782 |
ipb.end = inpbuf; |
783 |
if (ipb.end == ipb.beg) |
784 |
ipb.beg = NULL; |
785 |
} |
786 |
} else |
787 |
ipb.chr = *ipb.pos; |
788 |
} |
789 |
|
790 |
|
791 |
static void |
792 |
advinp(void) /* move home to current position */ |
793 |
{ |
794 |
ipb.beg = ipb.pos; |
795 |
} |
796 |
|
797 |
|
798 |
static void |
799 |
resetinp(void) /* rewind position and advance 1 */ |
800 |
{ |
801 |
if (ipb.beg == NULL) /* full */ |
802 |
ipb.beg = ipb.end; |
803 |
ipb.pos = ipb.beg; |
804 |
ipb.chr = *ipb.pos; |
805 |
if (++ipb.beg >= &inpbuf[INBSIZ]) |
806 |
ipb.beg = inpbuf; |
807 |
scaninp(); |
808 |
} |
809 |
|
810 |
|
811 |
void |
812 |
eputs(char *msg) |
813 |
{ |
814 |
fputs(msg, stderr); |
815 |
} |
816 |
|
817 |
|
818 |
void |
819 |
wputs(char *msg) |
820 |
{ |
821 |
if (!nowarn) |
822 |
eputs(msg); |
823 |
} |
824 |
|
825 |
|
826 |
void |
827 |
quit(int code) |
828 |
{ |
829 |
exit(code); |
830 |
} |