1 |
#ifndef lint |
2 |
static const char RCSid[] = "$Id: rcalc.c,v 1.7 2003/07/27 22:12:01 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 |
#define isnum(c) (isdigit(c) || (c)=='-' || (c)=='.' \ |
21 |
|| (c)=='+' || (c)=='e' || (c)=='E') |
22 |
|
23 |
#define isblnk(c) (igneol ? isspace(c) : (c)==' '||(c)=='\t') |
24 |
|
25 |
#define INBSIZ 4096 /* 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 */ |
35 |
|
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) */ |
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 */ |
52 |
}; |
53 |
|
54 |
#define savqstr(s) strcpy(emalloc(strlen(s)+1),s) |
55 |
#define freqstr(s) efree(s) |
56 |
|
57 |
static void scaninp(void), advinp(void), resetinp(void); |
58 |
static void putrec(void), putout(void), nbsynch(void); |
59 |
static int getrec(void); |
60 |
static void execute(char *file); |
61 |
static void initinp(FILE *fp); |
62 |
static void svpreset(char *eqn); |
63 |
static void readfmt(char *spec, int output); |
64 |
static int readfield(char **pp); |
65 |
static int getfield(struct field *f); |
66 |
static void chanset(int n, double v); |
67 |
static void bchanset(int n, double v); |
68 |
static struct strvar* getsvar(char *svname); |
69 |
|
70 |
struct field *inpfmt = NULL; /* input record format */ |
71 |
struct field *outfmt = NULL; /* output record structure */ |
72 |
struct strvar *svhead = NULL; /* string variables */ |
73 |
|
74 |
int blnkeq = 1; /* blanks compare equal? */ |
75 |
int igneol = 0; /* ignore end of line? */ |
76 |
char sepchar = '\t'; /* input/output separator */ |
77 |
int noinput = 0; /* no input records? */ |
78 |
int nbicols = 0; /* number of binary input columns */ |
79 |
int bocols = 0; /* produce binary output columns */ |
80 |
char inpbuf[INBSIZ]; /* input buffer */ |
81 |
double colval[MAXCOL]; /* input column values */ |
82 |
unsigned long colflg = 0; /* column retrieved flags */ |
83 |
int colpos; /* output column position */ |
84 |
|
85 |
int nowarn = 0; /* non-fatal diagnostic output */ |
86 |
int unbuff = 0; /* unbuffered output (flush each record) */ |
87 |
|
88 |
struct { |
89 |
FILE *fin; /* input file */ |
90 |
int chr; /* next character */ |
91 |
char *beg; /* home position */ |
92 |
char *pos; /* scan position */ |
93 |
char *end; /* read position */ |
94 |
} ipb; /* circular lookahead buffer */ |
95 |
|
96 |
|
97 |
int |
98 |
main( |
99 |
int argc, |
100 |
char *argv[] |
101 |
) |
102 |
{ |
103 |
int i; |
104 |
|
105 |
esupport |= E_VARIABLE|E_FUNCTION|E_INCHAN|E_OUTCHAN|E_RCONST; |
106 |
esupport &= ~(E_REDEFW); |
107 |
|
108 |
#ifdef BIGGERLIB |
109 |
biggerlib(); |
110 |
#endif |
111 |
varset("PI", ':', 3.14159265358979323846); |
112 |
|
113 |
for (i = 1; i < argc && argv[i][0] == '-'; i++) |
114 |
switch (argv[i][1]) { |
115 |
case 'b': |
116 |
blnkeq = !blnkeq; |
117 |
break; |
118 |
case 'l': |
119 |
igneol = !igneol; |
120 |
break; |
121 |
case 't': |
122 |
sepchar = argv[i][2]; |
123 |
break; |
124 |
case 's': |
125 |
svpreset(argv[++i]); |
126 |
break; |
127 |
case 'f': |
128 |
fcompile(argv[++i]); |
129 |
break; |
130 |
case 'e': |
131 |
scompile(argv[++i], NULL, 0); |
132 |
break; |
133 |
case 'n': |
134 |
noinput = 1; |
135 |
break; |
136 |
case 'i': |
137 |
switch (argv[i][2]) { |
138 |
case '\0': |
139 |
nbicols = 0; |
140 |
readfmt(argv[++i], 0); |
141 |
break; |
142 |
case 'a': |
143 |
nbicols = 0; |
144 |
break; |
145 |
case 'd': |
146 |
if (isdigit(argv[i][3])) |
147 |
nbicols = atoi(argv[i]+3); |
148 |
else |
149 |
nbicols = 1; |
150 |
break; |
151 |
case 'f': |
152 |
if (isdigit(argv[i][3])) |
153 |
nbicols = -atoi(argv[i]+3); |
154 |
else |
155 |
nbicols = -1; |
156 |
break; |
157 |
default: |
158 |
goto userr; |
159 |
} |
160 |
break; |
161 |
case 'o': |
162 |
switch (argv[i][2]) { |
163 |
case '\0': |
164 |
bocols = 0; |
165 |
readfmt(argv[++i], 1); |
166 |
break; |
167 |
case 'a': |
168 |
bocols = 0; |
169 |
break; |
170 |
case 'd': |
171 |
bocols = 1; |
172 |
break; |
173 |
case 'f': |
174 |
bocols = -1; |
175 |
break; |
176 |
} |
177 |
break; |
178 |
case 'w': |
179 |
nowarn = !nowarn; |
180 |
break; |
181 |
case 'u': |
182 |
unbuff = !unbuff; |
183 |
break; |
184 |
default:; |
185 |
userr: |
186 |
eputs("Usage: "); |
187 |
eputs(argv[0]); |
188 |
eputs(" [-b][-l][-n][-w][-u][-tS][-s svar=sval][-e expr][-f source][-i infmt][-o outfmt] [file]\n"); |
189 |
quit(1); |
190 |
} |
191 |
|
192 |
if (noinput) { /* produce a single output record */ |
193 |
eclock++; |
194 |
putout(); |
195 |
quit(0); |
196 |
} |
197 |
|
198 |
if (blnkeq) /* for efficiency */ |
199 |
nbsynch(); |
200 |
|
201 |
if (i == argc) /* from stdin */ |
202 |
execute(NULL); |
203 |
else /* from one or more files */ |
204 |
for ( ; i < argc; i++) |
205 |
execute(argv[i]); |
206 |
|
207 |
quit(0); |
208 |
} |
209 |
|
210 |
|
211 |
static void |
212 |
nbsynch(void) /* non-blank starting synch character */ |
213 |
{ |
214 |
if (inpfmt == NULL || (inpfmt->type & F_TYP) != T_LIT) |
215 |
return; |
216 |
while (isblnk(*inpfmt->f.sl)) |
217 |
inpfmt->f.sl++; |
218 |
if (!*inpfmt->f.sl) |
219 |
inpfmt = inpfmt->next; |
220 |
} |
221 |
|
222 |
|
223 |
int |
224 |
getinputrec( /* get next input record */ |
225 |
FILE *fp |
226 |
) |
227 |
{ |
228 |
if (inpfmt != NULL) |
229 |
return(getrec()); |
230 |
if (nbicols > 0) |
231 |
return(fread(inpbuf, sizeof(double), |
232 |
nbicols, fp) == nbicols); |
233 |
if (nbicols < 0) |
234 |
return(fread(inpbuf, sizeof(float), |
235 |
-nbicols, fp) == -nbicols); |
236 |
return(fgets(inpbuf, INBSIZ, fp) != NULL); |
237 |
} |
238 |
|
239 |
|
240 |
static void |
241 |
execute( /* process a file */ |
242 |
char *file |
243 |
) |
244 |
{ |
245 |
int conditional = vardefined("cond"); |
246 |
long nrecs = 0; |
247 |
long nout = 0; |
248 |
FILE *fp; |
249 |
|
250 |
if (file == NULL) |
251 |
fp = stdin; |
252 |
else if ((fp = fopen(file, "r")) == NULL) { |
253 |
eputs(file); |
254 |
eputs(": cannot open\n"); |
255 |
quit(1); |
256 |
} |
257 |
if (inpfmt != NULL) |
258 |
initinp(fp); |
259 |
|
260 |
while (getinputrec(fp)) { |
261 |
varset("recno", '=', (double)++nrecs); |
262 |
colflg = 0; |
263 |
eclock++; |
264 |
if (!conditional || varvalue("cond") > 0.0) { |
265 |
varset("outno", '=', (double)++nout); |
266 |
putout(); |
267 |
} |
268 |
} |
269 |
fclose(fp); |
270 |
} |
271 |
|
272 |
|
273 |
static void |
274 |
putout(void) /* produce an output record */ |
275 |
{ |
276 |
|
277 |
colpos = 0; |
278 |
if (outfmt != NULL) |
279 |
putrec(); |
280 |
else if (bocols) |
281 |
chanout(bchanset); |
282 |
else |
283 |
chanout(chanset); |
284 |
if (colpos && !bocols) |
285 |
putchar('\n'); |
286 |
if (unbuff) |
287 |
fflush(stdout); |
288 |
} |
289 |
|
290 |
|
291 |
double |
292 |
chanvalue( /* return value for column n */ |
293 |
int n |
294 |
) |
295 |
{ |
296 |
int i; |
297 |
register char *cp; |
298 |
|
299 |
if (noinput || inpfmt != NULL) { |
300 |
eputs("no column input\n"); |
301 |
quit(1); |
302 |
} |
303 |
if (n < 1) { |
304 |
eputs("illegal channel number\n"); |
305 |
quit(1); |
306 |
} |
307 |
if (nbicols > 0) { |
308 |
if (n > nbicols) |
309 |
return(0.0); |
310 |
cp = inpbuf + (n-1)*sizeof(double); |
311 |
return(*(double *)cp); |
312 |
} |
313 |
if (nbicols < 0) { |
314 |
if (n > -nbicols) |
315 |
return(0.0); |
316 |
cp = inpbuf + (n-1)*sizeof(float); |
317 |
return(*(float *)cp); |
318 |
} |
319 |
if (n <= MAXCOL && colflg & 1L<<(n-1)) |
320 |
return(colval[n-1]); |
321 |
|
322 |
cp = inpbuf; |
323 |
for (i = 1; i < n; i++) |
324 |
if (blnkeq && isspace(sepchar)) { |
325 |
while (isspace(*cp)) |
326 |
cp++; |
327 |
while (*cp && !isspace(*cp)) |
328 |
cp++; |
329 |
} else |
330 |
while (*cp && *cp++ != sepchar) |
331 |
; |
332 |
|
333 |
while (isspace(*cp)) /* some atof()'s don't like tabs */ |
334 |
cp++; |
335 |
|
336 |
if (n <= MAXCOL) { |
337 |
colflg |= 1L<<(n-1); |
338 |
return(colval[n-1] = atof(cp)); |
339 |
} else |
340 |
return(atof(cp)); |
341 |
} |
342 |
|
343 |
|
344 |
void |
345 |
chanset( /* output column n */ |
346 |
int n, |
347 |
double v |
348 |
) |
349 |
{ |
350 |
if (colpos == 0) /* no leading separator */ |
351 |
colpos = 1; |
352 |
while (colpos < n) { |
353 |
putchar(sepchar); |
354 |
colpos++; |
355 |
} |
356 |
printf("%.9g", v); |
357 |
} |
358 |
|
359 |
|
360 |
void |
361 |
bchanset( /* output binary channel n */ |
362 |
int n, |
363 |
double v |
364 |
) |
365 |
{ |
366 |
static char zerobuf[sizeof(double)]; |
367 |
|
368 |
while (++colpos < n) |
369 |
fwrite(zerobuf, |
370 |
bocols>0 ? sizeof(double) : sizeof(float), |
371 |
1, stdout); |
372 |
if (bocols > 0) |
373 |
fwrite(&v, sizeof(double), 1, stdout); |
374 |
else { |
375 |
float fval = v; |
376 |
fwrite(&fval, sizeof(float), 1, stdout); |
377 |
} |
378 |
} |
379 |
|
380 |
|
381 |
static void |
382 |
readfmt( /* read record format */ |
383 |
char *spec, |
384 |
int output |
385 |
) |
386 |
{ |
387 |
int fd; |
388 |
char *inptr; |
389 |
struct field fmt; |
390 |
int res; |
391 |
register struct field *f; |
392 |
/* check for inline format */ |
393 |
for (inptr = spec; *inptr; inptr++) |
394 |
if (*inptr == '$') |
395 |
break; |
396 |
if (*inptr) /* inline */ |
397 |
inptr = spec; |
398 |
else { /* from file */ |
399 |
if ((fd = open(spec, 0)) == -1) { |
400 |
eputs(spec); |
401 |
eputs(": cannot open\n"); |
402 |
quit(1); |
403 |
} |
404 |
res = read(fd, inpbuf+1, INBSIZ-1); |
405 |
if (res <= 0 || res >= INBSIZ-1) { |
406 |
eputs(spec); |
407 |
if (res < 0) |
408 |
eputs(": read error\n"); |
409 |
else if (res == 0) |
410 |
eputs(": empty file\n"); |
411 |
else if (res >= INBSIZ-1) |
412 |
eputs(": format too long\n"); |
413 |
quit(1); |
414 |
} |
415 |
close(fd); |
416 |
(inptr=inpbuf+1)[res] = '\0'; |
417 |
} |
418 |
f = &fmt; /* get fields */ |
419 |
while ((res = readfield(&inptr)) != F_NUL) { |
420 |
f->next = (struct field *)emalloc(sizeof(struct field)); |
421 |
f = f->next; |
422 |
f->type = res; |
423 |
switch (res & F_TYP) { |
424 |
case T_LIT: |
425 |
f->f.sl = savqstr(inpbuf); |
426 |
break; |
427 |
case T_STR: |
428 |
f->f.sv = getsvar(inpbuf); |
429 |
break; |
430 |
case T_NUM: |
431 |
if (output) |
432 |
f->f.ne = eparse(inpbuf); |
433 |
else |
434 |
f->f.nv = savestr(inpbuf); |
435 |
break; |
436 |
} |
437 |
/* add final newline if necessary */ |
438 |
if (!igneol && *inptr == '\0' && inptr[-1] != '\n') |
439 |
inptr = "\n"; |
440 |
} |
441 |
f->next = NULL; |
442 |
if (output) |
443 |
outfmt = fmt.next; |
444 |
else |
445 |
inpfmt = fmt.next; |
446 |
} |
447 |
|
448 |
|
449 |
static int |
450 |
readfield( /* get next field in format */ |
451 |
register char **pp |
452 |
) |
453 |
{ |
454 |
int type = F_NUL; |
455 |
int width = 0; |
456 |
register char *cp; |
457 |
|
458 |
cp = inpbuf; |
459 |
while (cp < &inpbuf[INBSIZ-1] && **pp != '\0') { |
460 |
width++; |
461 |
switch (type) { |
462 |
case F_NUL: |
463 |
if (**pp == '$') { |
464 |
(*pp)++; |
465 |
width++; |
466 |
if (**pp == '{') { |
467 |
type = T_NUM; |
468 |
(*pp)++; |
469 |
continue; |
470 |
} else if (**pp == '(') { |
471 |
type = T_STR; |
472 |
(*pp)++; |
473 |
continue; |
474 |
} else if (**pp != '$') { |
475 |
eputs("format error\n"); |
476 |
quit(1); |
477 |
} |
478 |
width--; |
479 |
} |
480 |
type = T_LIT; |
481 |
*cp++ = *(*pp)++; |
482 |
continue; |
483 |
case T_LIT: |
484 |
if (**pp == '$') { |
485 |
width--; |
486 |
break; |
487 |
} |
488 |
*cp++ = *(*pp)++; |
489 |
continue; |
490 |
case T_NUM: |
491 |
if (**pp == '}') { |
492 |
(*pp)++; |
493 |
break; |
494 |
} |
495 |
if (!isspace(**pp)) |
496 |
*cp++ = **pp; |
497 |
(*pp)++; |
498 |
continue; |
499 |
case T_STR: |
500 |
if (**pp == ')') { |
501 |
(*pp)++; |
502 |
break; |
503 |
} |
504 |
if (!isspace(**pp)) |
505 |
*cp++ = **pp; |
506 |
(*pp)++; |
507 |
continue; |
508 |
} |
509 |
break; |
510 |
} |
511 |
*cp = '\0'; |
512 |
return(type | width); |
513 |
} |
514 |
|
515 |
|
516 |
struct strvar * |
517 |
getsvar( /* get string variable */ |
518 |
char *svname |
519 |
) |
520 |
{ |
521 |
register struct strvar *sv; |
522 |
|
523 |
for (sv = svhead; sv != NULL; sv = sv->next) |
524 |
if (!strcmp(sv->name, svname)) |
525 |
return(sv); |
526 |
sv = (struct strvar *)emalloc(sizeof(struct strvar)); |
527 |
sv->name = savqstr(svname); |
528 |
sv->val = sv->preset = NULL; |
529 |
sv->next = svhead; |
530 |
svhead = sv; |
531 |
return(sv); |
532 |
} |
533 |
|
534 |
|
535 |
static void |
536 |
svpreset( /* preset a string variable */ |
537 |
char *eqn |
538 |
) |
539 |
{ |
540 |
register struct strvar *sv; |
541 |
register char *val; |
542 |
|
543 |
for (val = eqn; *val != '='; val++) |
544 |
if (!*val) |
545 |
return; |
546 |
*val++ = '\0'; |
547 |
sv = getsvar(eqn); |
548 |
if (sv->preset != NULL) |
549 |
freqstr(sv->preset); |
550 |
if (sv->val != NULL) |
551 |
freqstr(sv->val); |
552 |
sv->val = sv->preset = savqstr(val); |
553 |
*--val = '='; |
554 |
} |
555 |
|
556 |
|
557 |
static void |
558 |
clearrec(void) /* clear input record variables */ |
559 |
{ |
560 |
register struct field *f; |
561 |
|
562 |
for (f = inpfmt; f != NULL; f = f->next) |
563 |
switch (f->type & F_TYP) { |
564 |
case T_NUM: |
565 |
dremove(f->f.nv); |
566 |
break; |
567 |
case T_STR: |
568 |
if (f->f.sv->val != f->f.sv->preset) { |
569 |
freqstr(f->f.sv->val); |
570 |
f->f.sv->val = f->f.sv->preset; |
571 |
} |
572 |
break; |
573 |
} |
574 |
} |
575 |
|
576 |
|
577 |
static int |
578 |
getrec(void) /* get next record from file */ |
579 |
{ |
580 |
int eatline; |
581 |
register struct field *f; |
582 |
|
583 |
while (ipb.chr != EOF) { |
584 |
eatline = !igneol && ipb.chr != '\n'; |
585 |
if (blnkeq) /* beware of nbsynch() */ |
586 |
while (isblnk(ipb.chr)) |
587 |
scaninp(); |
588 |
clearrec(); /* start with fresh record */ |
589 |
for (f = inpfmt; f != NULL; f = f->next) |
590 |
if (getfield(f) == -1) |
591 |
break; |
592 |
if (f == NULL) { |
593 |
advinp(); |
594 |
return(1); |
595 |
} |
596 |
resetinp(); |
597 |
if (eatline) { /* eat rest of line */ |
598 |
while (ipb.chr != '\n') { |
599 |
if (ipb.chr == EOF) |
600 |
return(0); |
601 |
scaninp(); |
602 |
} |
603 |
scaninp(); |
604 |
advinp(); |
605 |
} |
606 |
} |
607 |
return(0); |
608 |
} |
609 |
|
610 |
|
611 |
static int |
612 |
getfield( /* get next field */ |
613 |
register struct field *f |
614 |
) |
615 |
{ |
616 |
static char buf[RMAXWORD+1]; /* no recursion! */ |
617 |
int delim, inword; |
618 |
double d; |
619 |
char *np; |
620 |
register char *cp; |
621 |
|
622 |
switch (f->type & F_TYP) { |
623 |
case T_LIT: |
624 |
cp = f->f.sl; |
625 |
do { |
626 |
if (blnkeq && isblnk(*cp)) { |
627 |
if (!isblnk(ipb.chr)) |
628 |
return(-1); |
629 |
do |
630 |
cp++; |
631 |
while (isblnk(*cp)); |
632 |
do |
633 |
scaninp(); |
634 |
while (isblnk(ipb.chr)); |
635 |
} else if (*cp == ipb.chr) { |
636 |
cp++; |
637 |
scaninp(); |
638 |
} else |
639 |
return(-1); |
640 |
} while (*cp); |
641 |
return(0); |
642 |
case T_STR: |
643 |
if (f->next == NULL || (f->next->type & F_TYP) != T_LIT) |
644 |
delim = EOF; |
645 |
else |
646 |
delim = f->next->f.sl[0]; |
647 |
cp = buf; |
648 |
do { |
649 |
if (ipb.chr == EOF) |
650 |
inword = 0; |
651 |
else if (blnkeq && delim != EOF) |
652 |
inword = isblnk(delim) ? |
653 |
!isblnk(ipb.chr) |
654 |
: ipb.chr != delim; |
655 |
else |
656 |
inword = cp-buf < (f->type & F_WID); |
657 |
if (inword) { |
658 |
*cp++ = ipb.chr; |
659 |
scaninp(); |
660 |
} |
661 |
} while (inword && cp < &buf[RMAXWORD]); |
662 |
*cp = '\0'; |
663 |
if (f->f.sv->val == NULL) |
664 |
f->f.sv->val = savqstr(buf); /* first setting */ |
665 |
else if (strcmp(f->f.sv->val, buf)) |
666 |
return(-1); /* doesn't match! */ |
667 |
return(0); |
668 |
case T_NUM: |
669 |
if (f->next == NULL || (f->next->type & F_TYP) != T_LIT) |
670 |
delim = EOF; |
671 |
else |
672 |
delim = f->next->f.sl[0]; |
673 |
np = NULL; |
674 |
cp = buf; |
675 |
do { |
676 |
if (!((np==NULL&&isblnk(ipb.chr)) || isnum(ipb.chr))) |
677 |
inword = 0; |
678 |
else if (blnkeq && delim != EOF) |
679 |
inword = isblnk(delim) ? |
680 |
!isblnk(ipb.chr) |
681 |
: ipb.chr != delim; |
682 |
else |
683 |
inword = cp-buf < (f->type & F_WID); |
684 |
if (inword) { |
685 |
if (np==NULL && !isblnk(ipb.chr)) |
686 |
np = cp; |
687 |
*cp++ = ipb.chr; |
688 |
scaninp(); |
689 |
} |
690 |
} while (inword && cp < &buf[RMAXWORD]); |
691 |
*cp = '\0'; |
692 |
d = np==NULL ? 0. : atof(np); |
693 |
if (!vardefined(f->f.nv)) |
694 |
varset(f->f.nv, '=', d); /* first setting */ |
695 |
else if ((d = (varvalue(f->f.nv)-d)/(d==0.?1.:d)) > .001 |
696 |
|| d < -.001) |
697 |
return(-1); /* doesn't match! */ |
698 |
return(0); |
699 |
} |
700 |
return -1; /* pro forma return */ |
701 |
} |
702 |
|
703 |
|
704 |
static void |
705 |
putrec(void) /* output a record */ |
706 |
{ |
707 |
char fmt[32]; |
708 |
register int n; |
709 |
register struct field *f; |
710 |
int adlast, adnext; |
711 |
|
712 |
adlast = 0; |
713 |
for (f = outfmt; f != NULL; f = f->next) { |
714 |
adnext = blnkeq && |
715 |
f->next != NULL && |
716 |
!( (f->next->type&F_TYP) == T_LIT && |
717 |
f->next->f.sl[0] == ' ' ); |
718 |
switch (f->type & F_TYP) { |
719 |
case T_LIT: |
720 |
fputs(f->f.sl, stdout); |
721 |
adlast = f->f.sl[(f->type&F_WID)-1] != ' '; |
722 |
break; |
723 |
case T_STR: |
724 |
if (f->f.sv->val == NULL) { |
725 |
eputs(f->f.sv->name); |
726 |
eputs(": undefined string\n"); |
727 |
quit(1); |
728 |
} |
729 |
n = (int)(f->type & F_WID) - strlen(f->f.sv->val); |
730 |
if (adlast) |
731 |
fputs(f->f.sv->val, stdout); |
732 |
if (!(adlast && adnext)) |
733 |
while (n-- > 0) |
734 |
putchar(' '); |
735 |
if (!adlast) |
736 |
fputs(f->f.sv->val, stdout); |
737 |
adlast = 1; |
738 |
break; |
739 |
case T_NUM: |
740 |
n = f->type & F_WID; |
741 |
if (adlast && adnext) |
742 |
strcpy(fmt, "%g"); |
743 |
else if (adlast) |
744 |
sprintf(fmt, "%%-%dg", n); |
745 |
else |
746 |
sprintf(fmt, "%%%dg", n); |
747 |
printf(fmt, evalue(f->f.ne)); |
748 |
adlast = 1; |
749 |
break; |
750 |
} |
751 |
} |
752 |
} |
753 |
|
754 |
|
755 |
static void |
756 |
initinp(FILE *fp) /* prepare lookahead buffer */ |
757 |
|
758 |
{ |
759 |
ipb.fin = fp; |
760 |
ipb.beg = ipb.end = inpbuf; |
761 |
ipb.pos = inpbuf-1; /* position before beginning */ |
762 |
ipb.chr = '\0'; |
763 |
scaninp(); |
764 |
} |
765 |
|
766 |
|
767 |
static void |
768 |
scaninp(void) /* scan next character */ |
769 |
{ |
770 |
if (ipb.chr == EOF) |
771 |
return; |
772 |
if (++ipb.pos >= &inpbuf[INBSIZ]) |
773 |
ipb.pos = inpbuf; |
774 |
if (ipb.pos == ipb.end) { /* new character */ |
775 |
if ((ipb.chr = getc(ipb.fin)) != EOF) { |
776 |
*ipb.end = ipb.chr; |
777 |
if (++ipb.end >= &inpbuf[INBSIZ]) |
778 |
ipb.end = inpbuf; |
779 |
if (ipb.end == ipb.beg) |
780 |
ipb.beg = NULL; |
781 |
} |
782 |
} else |
783 |
ipb.chr = *ipb.pos; |
784 |
} |
785 |
|
786 |
|
787 |
static void |
788 |
advinp(void) /* move home to current position */ |
789 |
{ |
790 |
ipb.beg = ipb.pos; |
791 |
} |
792 |
|
793 |
|
794 |
static void |
795 |
resetinp(void) /* rewind position and advance 1 */ |
796 |
{ |
797 |
if (ipb.beg == NULL) /* full */ |
798 |
ipb.beg = ipb.end; |
799 |
ipb.pos = ipb.beg; |
800 |
ipb.chr = *ipb.pos; |
801 |
if (++ipb.beg >= &inpbuf[INBSIZ]) |
802 |
ipb.beg = inpbuf; |
803 |
scaninp(); |
804 |
} |
805 |
|
806 |
|
807 |
void |
808 |
eputs(char *msg) |
809 |
{ |
810 |
fputs(msg, stderr); |
811 |
} |
812 |
|
813 |
|
814 |
void |
815 |
wputs(char *msg) |
816 |
{ |
817 |
if (!nowarn) |
818 |
eputs(msg); |
819 |
} |
820 |
|
821 |
|
822 |
void |
823 |
quit(int code) |
824 |
{ |
825 |
exit(code); |
826 |
} |