3 * Types for the test-vector framework
5 * (c) 2023 Straylight/Edgeware
8 /*----- Licensing notice --------------------------------------------------*
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20 * License for more details.
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28 /*----- Header files ------------------------------------------------------*/
47 /*----- Preliminary utilities ---------------------------------------------*/
50 # define NANP(x) isnan(x)
52 # define NANP(x) (!((x) == (x)))
56 # define INFP(x) isinf(x)
58 # define INFP(x) ((x) > DBL_MAX || (x) < DBL_MIN)
62 # define NEGP(x) signbit(x)
64 # define NEGP(x) ((x) < 0.0)
67 static void trivial_release(union tvec_regval *rv,
68 const struct tvec_regdef *rd)
71 static int signed_to_buf(buf *b, long i)
77 if (i >= 0) ASSIGN64(k, u);
78 else { ASSIGN64(k, ~u); CPL64(k, k); }
79 return (buf_putk64l(b, k));
82 static int signed_from_buf(buf *b, long *i_out)
84 kludge64 k, lmax, not_lmin;
86 ASSIGN64(lmax, LONG_MAX); ASSIGN64(not_lmin, ~(unsigned long)LONG_MIN);
87 if (buf_getk64l(b, &k)) return (-1);
88 if (CMP64(k, <=, lmax)) *i_out = (long)GET64(unsigned long, k);
91 if (CMP64(k, <=, not_lmin)) *i_out = -(long)GET64(unsigned long, k) - 1;
97 static int unsigned_to_buf(buf *b, unsigned long u)
98 { kludge64 k; ASSIGN64(k, u); return (buf_putk64l(b, k)); }
100 static int unsigned_from_buf(buf *b, unsigned long *u_out)
104 ASSIGN64(ulmax, ULONG_MAX);
105 if (buf_getk64l(b, &k)) return (-1);
106 if (CMP64(k, >, ulmax)) return (-1);
107 *u_out = GET64(unsigned long, k); return (0);
110 static int hex_width(unsigned long u)
115 for (t = u >> 4, wd = 4; t >>= wd, wd *= 2, t; );
119 static int check_signed_range(long i,
120 const struct tvec_irange *ir,
121 struct tvec_state *tv)
123 if (ir && (ir->min > i || i > ir->max)) {
124 tvec_error(tv, "integer %ld out of range (must be in [%ld .. %ld])",
125 i, ir->min, ir->max);
131 static int check_unsigned_range(unsigned long u,
132 const struct tvec_urange *ur,
133 struct tvec_state *tv)
135 if (ur && (ur->min > u || u > ur->max)) {
136 tvec_error(tv, "integer %lu out of range (must be in [%lu .. %lu])",
137 u, ur->min, ur->max);
143 static int chtodig(int ch)
145 if ('0' <= ch && ch <= '9') return (ch - '0');
146 else if ('a' <= ch && ch <= 'z') return (ch - 'a' + 10);
147 else if ('A' <= ch && ch <= 'Z') return (ch - 'A' + 10);
151 static int parse_unsigned_integer(unsigned long *u_out, const char **q_out,
158 #define f_implicit 1u
162 if (p[0] != '0' || !p[1]) {
163 d = chtodig(*p); if (0 > d || d >= 10) return (-1);
164 r = 10; u = d; p++; f |= f_implicit | f_digit;
166 u = 0; d = chtodig(p[2]);
167 if (d < 0) { r = 10; f |= f_implicit | f_digit; p++; }
168 else if ((p[1] == 'x' || p[1] == 'X') && d < 16) { r = 16; p += 2; }
169 else if ((p[1] == 'o' || p[1] == 'O') && d < 8) { r = 8; p += 2; }
170 else if ((p[1] == 'b' || p[1] == 'B') && d < 2) { r = 2; p += 2; }
171 else { r = 10; f |= f_digit; p++; }
178 if (f&f_uscore) break;
179 p++; f = (f&~f_implicit) | f_uscore;
181 else if (ch == 'r' || ch == 'R') {
182 if (!(f&f_implicit) || !u || u >= 36) break;
183 d = chtodig(p[1]); if (0 > d || d >= u) break;
184 r = u; u = d; f = (f&~f_implicit) | f_digit; p += 2; q = p;
187 if (d < 0 || d >= r) break;
188 if (u > ULONG_MAX/r) return (-1);
189 u *= r; if (u > ULONG_MAX - d) return (-1);
190 u += d; f = (f&~f_uscore) | f_digit; p++; q = p;
194 if (!(f&f_digit)) return (-1);
195 *u_out = u; *q_out = q; return (0);
202 static int parse_signed_integer(long *i_out, const char **q_out,
210 else if (*p == '-') { f |= f_neg; p++; }
212 if (parse_unsigned_integer(&u, q_out, p)) return (-1);
215 if (u > LONG_MAX) return (-1);
218 if (u && u - 1 > -(LONG_MIN + 1)) return (-1);
219 *i_out = u ? -(long)(u - 1) - 1 : 0;
227 static int parse_signed(long *i_out, const char *p,
228 const struct tvec_irange *ir,
229 struct tvec_state *tv)
234 if (parse_signed_integer(&i, &q, p))
235 return (tvec_error(tv, "invalid signed integer `%s'", p));
236 if (*q) return (tvec_syntax(tv, *q, "end-of-line"));
237 if (check_signed_range(i, ir, tv)) return (-1);
238 *i_out = i; return (0);
241 static int parse_unsigned(unsigned long *u_out, const char *p,
242 const struct tvec_urange *ur,
243 struct tvec_state *tv)
248 if (parse_unsigned_integer(&u, &q, p))
249 return (tvec_error(tv, "invalid unsigned integer `%s'", p));
250 if (*q) return (tvec_syntax(tv, *q, "end-of-line"));
251 if (check_unsigned_range(u, ur, tv)) return (-1);
252 *u_out = u; return (0);
255 static void format_signed_hex(const struct gprintf_ops *gops, void *go,
258 unsigned long u = i >= 0 ? i : -(unsigned long)i;
259 gprintf(gops, go, "%s0x%0*lx", i < 0 ? "-" : "", hex_width(u), u);
262 static void format_unsigned_hex(const struct gprintf_ops *gops, void *go,
264 { gprintf(gops, go, "0x%0*lx", hex_width(u), u); }
266 static void format_floating(const struct gprintf_ops *gops, void *go,
272 gprintf(gops, go, "#nan");
274 gprintf(gops, go, x > 0 ? "#+inf" : "#-inf");
276 /* Ugh. C doesn't provide any function for just printing a
277 * floating-point number /correctly/, i.e., so that you can read the
278 * result back and recover the number you first thought of. There are
279 * complicated algorithms published for doing this, but I really don't
280 * want to get into that here. So we have this.
282 * The sign doesn't cause significant difficulty so we're going to ignore
283 * it for now. So suppose we're given a number %$x = f b^e$%, in
284 * base-%$b$% format, so %$f b^n$% and %$e$% are integers, with
285 * %$0 \le f < 1$%. We're going to convert it into the nearest integer
286 * of the form %$X = F B^E$%, with similar conditions, only with the
287 * additional requirement that %$X$% is normalized, i.e., that %$X = 0$%
288 * or %$F \ge B^{-N}$%.
290 * We're rounding to the nearest such %$X$%. If there is to be ambiguity
291 * in the conversion, then some %$x = f b^e$% and the next smallest
292 * representable number %$x' = x + b^{e-n}$% must both map to the same
293 * %$X$%, which means both %$x$% and %$x'$% must be nearer to %$X$% than
294 * any other number representable in the target system. The nest larger
295 * number is %$X' = X + B^{E-N}$%; the next smaller number will normally
296 * be %$W = X - B^{E-N}$%, but if %$F = 1/B$ then the next smaller number
297 * is actually %$X - B^{E-N-1}$%. We ignore this latter possibility in
298 * the pursuit of a conservative estimate (though actually it doesn't
301 * If both %$x$% and %$x'$% map to %$X$% then we must have
302 * %$L = X - B^{E-N}/2 \le x$% and %$x + b^{e-n} \le R = X + B^{E-N}/2$%;
303 * so firstly %$f b^e = x \ge L = W + B^{E-N}/2 > W = (F - B^{-N}) B^E$%,
304 * and secondly %$b^{e-n} \le B^{E-N}$%. Since these inequalities are in
305 * opposite senses, we can divide, giving
307 * %$f b^e/b^{e-n} > (F - B^{-N}) B^E/B^{E-N}$% ,
311 * %$f b^n > (F - B^{-N}) B^N = F B^N - 1$% .
313 * Now %$f \le 1 - b^{-n}$%, and %$F \ge B^{-1}$%, so, for this to be
314 * possible, it must be the case that
316 * %$(1 - b^{-n}) b^n = b^n - 1 > B^{N-1} - 1$% .
318 * Then rearrange and take logarithms, obtaining
320 * %$(N - 1) \log B < n \log b$% ,
324 * %$N < n \log b/\log B + 1$% .
326 * Recall that this is a necessary condition for a collision to occur; we
327 * are therefore safe whenever
329 * %$N \ge n \log b/\log B + 1$% ;
331 * so, taking ceilings,
333 * %$N \ge \lceil n \log b/\log B \rceil + 1$% .
335 * So that's why we have this.
337 * I'm going to assume that @n = DBL_MANT_DIG@ is sufficiently small that
338 * we can calculate this without ending up on the wrong side of an
341 * In C11, we have @DBL_DECIMAL_DIG@, which should be the same value only
342 * as a constant. Except that modern compilers are more than clever
343 * enough to work out that this is a constant anyway.
345 * This is sometimes an overestimate: we'll print out meaningless digits
346 * that don't represent anything we actually know about the number in
347 * question. To fix that, we'd need a complicated algorithm like Steele
348 * and White's Dragon4, Gay's @dtoa@, or Burger and Dybvig's algorithm
349 * (note that Loitsch's Grisu2 is conservative, and Grisu3 hands off to
350 * something else in difficult situations).
353 prec = ceil(DBL_MANT_DIG*log(FLT_RADIX)/log(10)) + 1;
354 gprintf(gops, go, "%.*g", prec, x);
358 static int eqish_floating_p(double x, double y,
359 const struct tvec_floatinfo *fi)
363 if (NANP(x)) return (NANP(y)); else if (NANP(y)) return (0);
364 if (INFP(x)) return (x == y); else if (INFP(y)) return (0);
366 switch (fi ? fi->f&TVFF_EQMASK : TVFF_EXACT) {
368 return (x == y && NEGP(x) == NEGP(y));
370 t = x - y; if (t < 0) t = -t; return (t < fi->delta);
372 t = 1.0 - y/x; if (t < 0) t = -t; return (t < fi->delta);
378 static int parse_floating(double *x_out, const char *p,
379 const struct tvec_floatinfo *fi,
380 struct tvec_state *tv)
382 const char *pp; char *q;
387 if (STRCMP(p, ==, "#nan")) {
391 tvec_error(tv, "NaN not supported on this system");
394 } else if (STRCMP(p, ==, "#inf") ||
395 STRCMP(p, ==, "#+inf") ||
396 STRCMP(p, ==, "+#inf")) {
398 x = INFINITY; rc = 0;
400 tvec_error(tv, "infinity not supported on this system");
403 } else if (STRCMP(p, ==, "#-inf") ||
404 STRCMP(p, ==, "-#inf")) {
406 x = -INFINITY; rc = 0;
408 tvec_error(tv, "infinity not supported on this system");
413 if (*pp == '+' || *pp == '-') pp++;
414 if (*pp == '.') pp++;
416 tvec_syntax(tv, *p ? *p : fgetc(tv->fp), "floating-point number");
419 olderr = errno; errno = 0;
422 tvec_syntax(tv, *q, "end-of-line");
425 if (errno && (errno != ERANGE || (x > 0 ? -x : x) == HUGE_VAL)) {
426 tvec_error(tv, "invalid floating-point number `%s': %s",
433 if (NANP(x) && fi && !(fi->f&TVFF_NANOK)) {
434 tvec_error(tv, "#nan not allowed here");
437 if (fi && ((!(fi->f&TVFF_NOMIN) && x < fi->min) ||
438 (!(fi->f&TVFF_NOMAX) && x > fi->max))) {
439 dstr_puts(&d, "floating-point number ");
440 format_floating(&dstr_printops, &d, x);
441 dstr_puts(&d, " out of range (must be in ");
442 if (fi->f&TVFF_NOMIN)
443 dstr_puts(&d, "(#-inf");
445 { dstr_putc(&d, '['); format_floating(&dstr_printops, &d, fi->min); }
446 dstr_puts(&d, " .. ");
447 if (fi->f&TVFF_NOMAX)
448 dstr_puts(&d, "#+inf)");
450 { format_floating(&dstr_printops, &d, fi->max); dstr_putc(&d, ']'); }
451 dstr_putc(&d, ')'); dstr_putz(&d);
452 tvec_error(tv, "%s", d.buf); rc = -1; goto end;
461 static int convert_hex(char ch, int *v_out)
463 if ('0' <= ch && ch <= '9') { *v_out = ch - '0'; return (0); }
464 else if ('a' <= ch && ch <= 'f') { *v_out = ch - 'a' + 10; return (0); }
465 else if ('A' <= ch && ch <= 'F') { *v_out = ch - 'A' + 10; return (0); }
469 static int read_escape(int *ch_out, struct tvec_state *tv)
477 case EOF: case '\n': tvec_syntax(tv, ch, "string escape");
478 case '\'': *ch_out = '\''; break;
479 case '\\': *ch_out = '\\'; break;
480 case '"': *ch_out = '"'; break;
481 case 'a': *ch_out = '\a'; break;
482 case 'b': *ch_out = '\b'; break;
483 case 'e': *ch_out = '\x1b'; break;
484 case 'f': *ch_out = '\f'; break;
485 case 'n': *ch_out = '\n'; break;
486 case 'r': *ch_out = '\r'; break;
487 case 't': *ch_out = '\t'; break;
488 case 'v': *ch_out = '\v'; break;
492 if (ch == '{') { f |= f_brace; ch = getc(tv->fp); }
494 if (convert_hex(ch, &esc))
495 return (tvec_syntax(tv, ch, "hex digit"));
497 ch = getc(tv->fp); if (convert_hex(ch, &i)) break;
500 return (tvec_error(tv,
501 "character code %d out of range", esc));
503 if (!(f&f_brace)) ungetc(ch, tv->fp);
504 else if (ch != '}') return (tvec_syntax(tv, ch, "`}'"));
509 if ('0' <= ch && ch < '8') {
510 i = 1; esc = ch - '0';
513 if ('0' > ch || ch >= '8') { ungetc(ch, tv->fp); break; }
514 esc = 8*esc + ch - '0';
515 i++; if (i >= 3) break;
518 return (tvec_error(tv,
519 "character code %d out of range", esc));
522 return (tvec_syntax(tv, ch, "string escape"));
530 static int read_quoted_string(dstr *d, int quote, struct tvec_state *tv)
538 return (tvec_syntax(tv, ch, "`%c'", quote));
540 if (quote == '\'') goto ordinary;
541 ch = getc(tv->fp); if (ch == '\n') { tv->lno++; break; }
542 ungetc(ch, tv->fp); if (read_escape(&ch, tv)) return (-1);
545 if (ch == quote) goto end;
558 static void format_charesc(const struct gprintf_ops *gops, void *go,
562 case '\a': gprintf(gops, go, "\\a"); break;
563 case '\b': gprintf(gops, go, "\\b"); break;
564 case '\x1b': gprintf(gops, go, "\\e"); break;
565 case '\f': gprintf(gops, go, "\\f"); break;
566 case '\r': gprintf(gops, go, "\\r"); break;
567 case '\n': gprintf(gops, go, "\\n"); break;
568 case '\t': gprintf(gops, go, "\\t"); break;
569 case '\v': gprintf(gops, go, "\\v"); break;
570 case '\'': gprintf(gops, go, "\\'"); break;
571 case '"': gprintf(gops, go, "\\\""); break;
574 gprintf(gops, go, "\\x{%0*x}", hex_width(UCHAR_MAX), ch);
576 gprintf(gops, go, "\\x%0*x", hex_width(UCHAR_MAX), ch);
581 static void format_char(const struct gprintf_ops *gops, void *go, int ch)
584 gprintf(gops, go, "#eof");
585 else if (isprint(ch) && ch != '\'')
586 gprintf(gops, go, "'%c'", ch);
588 gprintf(gops, go, "'");
589 format_charesc(gops, go, ch, 0);
590 gprintf(gops, go, "'");
594 static void maybe_format_signed_char
595 (const struct gprintf_ops *gops, void *go, long i)
597 if (i == EOF || (0 <= i && i < UCHAR_MAX))
598 { gprintf(gops, go, " = "); format_char(gops, go, i); }
601 static void maybe_format_unsigned_char
602 (const struct gprintf_ops *gops, void *go, unsigned long u)
605 { gprintf(gops, go, " = "); format_char(gops, go, u); }
608 enum { TVCODE_BARE, TVCODE_HEX, TVCODE_BASE64, TVCODE_BASE32 };
610 static int collect_bare(dstr *d, struct tvec_state *tv)
613 enum { WORD, SPACE, ESCAPE }; unsigned s = WORD;
620 tvec_syntax(tv, ch, "bareword");
623 if (s == ESCAPE) { tv->lno++; goto addch; }
624 if (s == WORD) pos = d->len;
625 ungetc(ch, tv->fp); if (tvec_nexttoken(tv)) { rc = -1; goto end; }
626 DPUTC(d, ' '); s = SPACE;
628 case '"': case '\'': case '!':
629 if (s == SPACE) { ungetc(ch, tv->fp); goto done; }
635 if (s != ESCAPE && isspace(ch)) {
636 if (s == WORD) pos = d->len;
637 DPUTC(d, ch); s = SPACE;
641 DPUTC(d, ch); s = WORD;
646 if (s == SPACE) d->len = pos;
652 static void set_up_encoding(const codec_class **ccl_out, unsigned *f_out,
657 *ccl_out = 0; *f_out = 0;
660 *ccl_out = &hex_class; *f_out = CDCF_IGNCASE;
663 *ccl_out = &base32_class; *f_out = CDCF_IGNCASE | CDCF_IGNEQPAD;
666 *ccl_out = &base64_class; *f_out = CDCF_IGNEQPAD;
673 static int read_compound_string(void **p_inout, size_t *sz_inout,
674 unsigned code, struct tvec_state *tv)
676 const codec_class *ccl; unsigned f;
678 dstr d = DSTR_INIT, w = DSTR_INIT;
682 set_up_encoding(&ccl, &f, code);
683 if (tvec_nexttoken(tv)) tvec_syntax(tv, fgetc(tv->fp), "string");
686 if (ch == '"' || ch == '\'')
687 { if (read_quoted_string(&d, ch, tv)) { rc = -1; goto end; } }
688 else if (ch == '!') {
690 DRESET(&w); tvec_readword(tv, &w, ";", "`!'-keyword");
691 if (STRCMP(w.buf, ==, "!bare")) code = TVCODE_BARE;
692 else if (STRCMP(w.buf, ==, "!hex")) code = TVCODE_HEX;
693 else if (STRCMP(w.buf, ==, "!base32")) code = TVCODE_BASE32;
694 else if (STRCMP(w.buf, ==, "!base64")) code = TVCODE_BASE64;
696 tvec_error(tv, "unknown string keyword `%s'", w.buf);
699 set_up_encoding(&ccl, &f, code);
703 if (tvec_readword(tv, &w, ";", "%s-encoded fragment", ccl->name))
704 { rc = -1; goto end; }
705 cdc = ccl->decoder(f);
706 err = cdc->ops->code(cdc, w.buf, w.len, &d);
707 if (!err) err = cdc->ops->code(cdc, 0, 0, &d);
709 tvec_error(tv, "invalid %s fragment `%s': %s",
710 ccl->name, w.buf, codec_strerror(err));
713 cdc->ops->destroy(cdc);
714 } else switch (code) {
717 if (collect_bare(&d, tv)) goto done;
722 } while (!tvec_nexttoken(tv));
725 if (*sz_inout <= d.len)
726 { xfree(*p_inout); *p_inout = xmalloc(d.len + 1); }
727 p = *p_inout; memcpy(p, d.buf, d.len); p[d.len] = 0; *sz_inout = d.len;
730 dstr_destroy(&d); dstr_destroy(&w);
734 /*----- Skeleton ----------------------------------------------------------*/
736 static void init_...(union tvec_regval *rv, const struct tvec_regdef *rd)
737 static void release_...(union tvec_regval *rv, const struct tvec_regdef *rd)
738 static int eq_...(const union tvec_regval *rv0, const union tvec_regval *rv1,
739 const struct tvec_regdef *rd)
740 static int tobuf_...(buf *b, const union tvec_regval *rv,
741 const struct tvec_regdef *rd)
742 static int frombuf_...(buf *b, union tvec_regval *rv,
743 const struct tvec_regdef *rd)
744 static int parse_...(union tvec_regval *rv, const struct tvec_regdef *rd,
745 struct tvec_state *tv)
746 static void dump_...(const union tvec_regval *rv,
747 const struct tvec_regdef *rd,
748 struct tvec_state *tv, unsigned style)
750 const struct tvec_regty tvty_... = {
751 init_..., release_..., eq_...,
752 tobuf_..., frombuf_...,
756 /*----- Signed and unsigned integer types ---------------------------------*/
758 static void init_int(union tvec_regval *rv, const struct tvec_regdef *rd)
761 static void init_uint(union tvec_regval *rv, const struct tvec_regdef *rd)
764 static int eq_int(const union tvec_regval *rv0, const union tvec_regval *rv1,
765 const struct tvec_regdef *rd)
766 { return (rv0->i == rv1->i); }
768 static int eq_uint(const union tvec_regval *rv0,
769 const union tvec_regval *rv1,
770 const struct tvec_regdef *rd)
771 { return (rv0->u == rv1->u); }
773 static int tobuf_int(buf *b, const union tvec_regval *rv,
774 const struct tvec_regdef *rd)
775 { return (signed_to_buf(b, rv->i)); }
777 static int tobuf_uint(buf *b, const union tvec_regval *rv,
778 const struct tvec_regdef *rd)
779 { return (unsigned_to_buf(b, rv->u)); }
781 static int frombuf_int(buf *b, union tvec_regval *rv,
782 const struct tvec_regdef *rd)
783 { return (signed_from_buf(b, &rv->i)); }
785 static int frombuf_uint(buf *b, union tvec_regval *rv,
786 const struct tvec_regdef *rd)
787 { return (unsigned_from_buf(b, &rv->u)); }
789 static int parse_int(union tvec_regval *rv, const struct tvec_regdef *rd,
790 struct tvec_state *tv)
795 if (tvec_readword(tv, &d, ";", "signed integer"))
796 { rc = -1; goto end; }
797 if (parse_signed(&rv->i, d.buf, rd->arg.p, tv))
798 { rc = -1; goto end; }
799 if (tvec_flushtoeol(tv, 0))
800 { rc = -1; goto end; }
807 static int parse_uint(union tvec_regval *rv, const struct tvec_regdef *rd,
808 struct tvec_state *tv)
813 if (tvec_readword(tv, &d, ";", "unsigned integer"))
814 { rc = -1; goto end; }
815 if (parse_unsigned(&rv->u, d.buf, rd->arg.p, tv))
816 { rc = -1; goto end; }
817 if (tvec_flushtoeol(tv, 0))
818 { rc = -1; goto end; }
825 static void dump_int(const union tvec_regval *rv,
826 const struct tvec_regdef *rd,
828 const struct gprintf_ops *gops, void *go)
831 gprintf(gops, go, "%ld", rv->i);
832 if (!(style&TVSF_COMPACT)) {
833 gprintf(gops, go, " ; = ");
834 format_signed_hex(gops, go, rv->i);
835 maybe_format_signed_char(gops, go, rv->i);
839 static void dump_uint(const union tvec_regval *rv,
840 const struct tvec_regdef *rd,
842 const struct gprintf_ops *gops, void *go)
844 gprintf(gops, go, "%lu", rv->u);
845 if (!(style&TVSF_COMPACT)) {
846 gprintf(gops, go, " ; = ");
847 format_unsigned_hex(gops, go, rv->u);
848 maybe_format_unsigned_char(gops, go, rv->u);
852 const struct tvec_regty tvty_int = {
853 init_int, trivial_release, eq_int,
854 tobuf_int, frombuf_int,
858 const struct tvec_irange
859 tvrange_schar = { SCHAR_MIN, SCHAR_MAX },
860 tvrange_short = { SHRT_MIN, SHRT_MAX },
861 tvrange_int = { INT_MIN, INT_MAX },
862 tvrange_long = { LONG_MIN, LONG_MAX },
863 tvrange_sbyte = { -128, 127 },
864 tvrange_i16 = { -32768, +32767 },
865 tvrange_i32 = { -2147483648, 2147483647 };
867 const struct tvec_regty tvty_uint = {
868 init_uint, trivial_release, eq_uint,
869 tobuf_uint, frombuf_uint,
870 parse_uint, dump_uint
873 const struct tvec_urange
874 tvrange_uchar = { 0, UCHAR_MAX },
875 tvrange_ushort = { 0, USHRT_MAX },
876 tvrange_uint = { 0, UINT_MAX },
877 tvrange_ulong = { 0, ULONG_MAX },
878 tvrange_size = { 0, (size_t)-1 },
879 tvrange_byte = { 0, 255 },
880 tvrange_u16 = { 0, 65535 },
881 tvrange_u32 = { 0, 4294967296 };
883 int tvec_claimeq_int(struct tvec_state *tv, long i0, long i1,
884 const char *file, unsigned lno, const char *expr)
886 tv->out[0].v.i = i0; tv->in[0].v.i = i1;
887 return (tvec_claimeq(tv, &tvty_int, 0, file, lno, expr));
890 int tvec_claimeq_uint(struct tvec_state *tv,
891 unsigned long u0, unsigned long u1,
892 const char *file, unsigned lno, const char *expr)
894 tv->out[0].v.u = u0; tv->in[0].v.u = u1;
895 return (tvec_claimeq(tv, &tvty_uint, 0, file, lno, expr));
898 /*----- Floating-point type -----------------------------------------------*/
900 static void init_float(union tvec_regval *rv, const struct tvec_regdef *rd)
903 static int eq_float(const union tvec_regval *rv0,
904 const union tvec_regval *rv1,
905 const struct tvec_regdef *rd)
906 { return (eqish_floating_p(rv0->f, rv1->f, rd->arg.p)); }
908 static int tobuf_float(buf *b, const union tvec_regval *rv,
909 const struct tvec_regdef *rd)
910 { return (buf_putf64l(b, rv->f)); }
911 static int frombuf_float(buf *b, union tvec_regval *rv,
912 const struct tvec_regdef *rd)
913 { return (buf_getf64l(b, &rv->f)); }
915 static int parse_float(union tvec_regval *rv, const struct tvec_regdef *rd,
916 struct tvec_state *tv)
921 if (tvec_readword(tv, &d, ";", "floating-point number"))
922 { rc = -1; goto end; }
923 if (parse_floating(&rv->f, d.buf, rd->arg.p, tv))
924 { rc = -1; goto end; }
925 if (tvec_flushtoeol(tv, 0))
926 { rc = -1; goto end; }
933 static void dump_float(const union tvec_regval *rv,
934 const struct tvec_regdef *rd,
936 const struct gprintf_ops *gops, void *go)
937 { format_floating(gops, go, rv->f); }
939 const struct tvec_regty tvty_float = {
940 init_float, trivial_release, eq_float,
941 tobuf_float, frombuf_float,
942 parse_float, dump_float
945 int tvec_claimeq_float(struct tvec_state *tv,
946 double f0, double f1,
947 const char *file, unsigned lno,
950 return (tvec_claimeqish_float(tv, f0, f1, TVFF_EXACT, 0.0,
953 int tvec_claimeqish_float(struct tvec_state *tv,
954 double f0, double f1, unsigned f, double delta,
955 const char *file, unsigned lno,
958 struct tvec_floatinfo fi;
961 fi.f = f; fi.min = fi.max = 0.0; fi.delta = delta; arg.p = &fi;
962 tv->out[0].v.f = f0; tv->in[0].v.f = f1;
963 return (tvec_claimeq(tv, &tvty_float, &arg, file, lno, expr));
966 /*----- Enumerations ------------------------------------------------------*/
968 #define init_ienum init_int
969 #define init_uenum init_uint
970 #define init_fenum init_float
971 static void init_penum(union tvec_regval *rv, const struct tvec_regdef *rd)
974 #define eq_ienum eq_int
975 #define eq_uenum eq_uint
976 static int eq_fenum(const union tvec_regval *rv0,
977 const union tvec_regval *rv1,
978 const struct tvec_regdef *rd)
980 const struct tvec_fenuminfo *ei = rd->arg.p;
981 return (eqish_floating_p(rv0->f, rv1->f, ei->fi));
983 static int eq_penum(const union tvec_regval *rv0,
984 const union tvec_regval *rv1,
985 const struct tvec_regdef *rd)
986 { return (rv0->p == rv1->p); }
988 #define tobuf_ienum tobuf_int
989 #define tobuf_uenum tobuf_uint
990 #define tobuf_fenum tobuf_float
991 static int tobuf_penum(buf *b, const union tvec_regval *rv,
992 const struct tvec_regdef *rd)
994 const struct tvec_penuminfo *pei = rd->arg.p;
995 const struct tvec_passoc *pa;
998 for (pa = pei->av, i = 0; pa->tag; pa++, i++)
999 if (pa->p == rv->p) goto found;
1003 return (signed_to_buf(b, i));
1006 #define frombuf_ienum frombuf_int
1007 #define frombuf_uenum frombuf_uint
1008 #define frombuf_fenum frombuf_float
1009 static int frombuf_penum(buf *b, union tvec_regval *rv,
1010 const struct tvec_regdef *rd)
1012 const struct tvec_penuminfo *pei = rd->arg.p;
1013 const struct tvec_passoc *pa;
1016 for (pa = pei->av, n = 0; pa->tag; pa++, n++);
1017 if (signed_from_buf(b, &i)) return (-1);
1018 if (0 <= i && i < n) rv->p = (/*unconst*/ void *)pei->av[i].p;
1019 else if (i == -1) rv->p = 0;
1024 #define DEFPARSE_ENUM(tag_, ty, slot) \
1025 static int parse_##slot##enum(union tvec_regval *rv, \
1026 const struct tvec_regdef *rd, \
1027 struct tvec_state *tv) \
1029 const struct tvec_##slot##enuminfo *ei = rd->arg.p; \
1030 const struct tvec_##slot##assoc *a; \
1031 dstr d = DSTR_INIT; \
1034 if (tvec_readword(tv, &d, ";", "enumeration tag or " LITSTR_##tag_)) \
1035 { rc = -1; goto end; } \
1036 for (a = ei->av; a->tag; a++) \
1037 if (STRCMP(a->tag, ==, d.buf)) { FOUND_##tag_ goto done; } \
1040 if (tvec_flushtoeol(tv, 0)) { rc = -1; goto end; } \
1047 #define LITSTR_INT "literal signed integer"
1048 #define FOUND_INT rv->i = a->i;
1049 #define MISSING_INT if (parse_signed(&rv->i, d.buf, ei->ir, tv)) \
1050 { rc = -1; goto end; }
1052 #define LITSTR_UINT "literal unsigned integer"
1053 #define FOUND_UINT rv->u = a->u;
1054 #define MISSING_UINT if (parse_unsigned(&rv->u, d.buf, ei->ur, tv)) \
1055 { rc = -1; goto end; }
1057 #define LITSTR_FLT "literal floating-point number, " \
1058 "`#-inf', `#+inf', or `#nan'"
1059 #define FOUND_FLT rv->f = a->f;
1060 #define MISSING_FLT if (parse_floating(&rv->f, d.buf, ei->fi, tv)) \
1061 { rc = -1; goto end; }
1063 #define LITSTR_PTR "`#nil'"
1064 #define FOUND_PTR rv->p = (/*unconst*/ void *)a->p;
1065 #define MISSING_PTR if (STRCMP(d.buf, ==, "#nil")) \
1068 tvec_error(tv, "unknown `%s' value `%s'", \
1070 rc = -1; goto end; \
1073 TVEC_MISCSLOTS(DEFPARSE_ENUM)
1091 #undef DEFPARSE_ENUM
1093 #define DEFDUMP_ENUM(tag_, ty, slot) \
1094 static void dump_##slot##enum(const union tvec_regval *rv, \
1095 const struct tvec_regdef *rd, \
1097 const struct gprintf_ops *gops, void *go) \
1099 const struct tvec_##slot##enuminfo *ei = rd->arg.p; \
1100 const struct tvec_##slot##assoc *a; \
1102 for (a = ei->av; a->tag; a++) \
1103 if (rv->slot == a->slot) { \
1104 gprintf(gops, go, "%s", a->tag); \
1105 if (style&TVSF_COMPACT) return; \
1106 gprintf(gops, go, " ; = "); break; \
1112 #define MAYBE_PRINT_EXTRA \
1113 if (style&TVSF_COMPACT) ; \
1114 else if (!a->tag) { gprintf(gops, go, " ; = "); goto _extra; } \
1115 else if (1) { gprintf(gops, go, " = "); goto _extra; } \
1118 #define PRINTRAW_INT gprintf(gops, go, "%ld", rv->i); \
1119 MAYBE_PRINT_EXTRA { \
1120 format_signed_hex(gops, go, rv->i); \
1121 maybe_format_signed_char(gops, go, rv->i); \
1124 #define PRINTRAW_UINT gprintf(gops, go, "%lu", rv->u); \
1125 MAYBE_PRINT_EXTRA { \
1126 format_unsigned_hex(gops, go, rv->u); \
1127 maybe_format_unsigned_char(gops, go, rv->u); \
1130 #define PRINTRAW_FLT format_floating(gops, go, rv->f);
1132 #define PRINTRAW_PTR if (!rv->p) gprintf(gops, go, "#nil"); \
1133 else gprintf(gops, go, "#<%s %p>", ei->name, rv->p);
1135 TVEC_MISCSLOTS(DEFDUMP_ENUM)
1138 #undef PRINTRAW_UINT
1142 #undef MAYBE_PRINT_EXTRA
1145 #define DEFTY_ENUM(tag, ty, slot) \
1146 const struct tvec_regty tvty_##slot##enum = { \
1147 init_##slot##enum, trivial_release, eq_##slot##enum, \
1148 tobuf_##slot##enum, frombuf_##slot##enum, \
1149 parse_##slot##enum, dump_##slot##enum \
1151 TVEC_MISCSLOTS(DEFTY_ENUM)
1154 static const struct tvec_iassoc bool_assoc[] = {
1171 const struct tvec_ienuminfo tvenum_bool =
1172 { "bool", bool_assoc, &tvrange_int };
1174 #define DEFCLAIM(tag, ty, slot) \
1175 int tvec_claimeq_##slot##enum \
1176 (struct tvec_state *tv, \
1177 const struct tvec_##slot##enuminfo *ei, ty e0, ty e1, \
1178 const char *file, unsigned lno, const char *expr) \
1180 union tvec_misc arg; \
1183 tv->out[0].v.slot = GET_##tag(e0); \
1184 tv->in[0].v.slot = GET_##tag(e1); \
1185 return (tvec_claimeq(tv, &tvty_##slot##enum, &arg, \
1186 file, lno, expr)); \
1188 #define GET_INT(e) (e)
1189 #define GET_UINT(e) (e)
1190 #define GET_FLT(e) (e)
1191 #define GET_PTR(e) ((/*unconst*/ void *)(e))
1192 TVEC_MISCSLOTS(DEFCLAIM)
1199 /*----- Flag types --------------------------------------------------------*/
1201 static int parse_flags(union tvec_regval *rv, const struct tvec_regdef *rd,
1202 struct tvec_state *tv)
1204 const struct tvec_flaginfo *fi = rd->arg.p;
1205 const struct tvec_flag *f;
1206 unsigned long m = 0, v = 0, t;
1212 if (tvec_readword(tv, &d, "|;", "flag name or integer"))
1213 { rc = -1; goto end; }
1215 for (f = fi->fv; f->tag; f++)
1216 if (STRCMP(f->tag, ==, d.buf)) {
1218 { tvec_error(tv, "colliding flag setting"); rc = -1; goto end; }
1220 { m |= f->m; v |= f->v; goto next; }
1223 if (parse_unsigned(&t, d.buf, fi->range, tv))
1224 { rc = -1; goto end; }
1227 if (tvec_nexttoken(tv)) break;
1229 if (ch != '|') { tvec_syntax(tv, ch, "`|'"); rc = -1; goto end; }
1230 if (tvec_nexttoken(tv))
1231 { tvec_syntax(tv, '\n', "flag name or integer"); rc = -1; goto end; }
1240 static void dump_flags(const union tvec_regval *rv,
1241 const struct tvec_regdef *rd,
1243 const struct gprintf_ops *gops, void *go)
1245 const struct tvec_flaginfo *fi = rd->arg.p;
1246 const struct tvec_flag *f;
1247 unsigned long m = ~(unsigned long)0, v = rv->u;
1250 for (f = fi->fv, sep = ""; f->tag; f++)
1251 if ((m&f->m) && (v&f->m) == f->v) {
1252 gprintf(gops, go, "%s%s", sep, f->tag); m &= ~f->m;
1253 sep = style&TVSF_COMPACT ? "|" : " | ";
1256 if (v&m) gprintf(gops, go, "%s0x%0*lx", sep, hex_width(v), v&m);
1258 if (!(style&TVSF_COMPACT))
1259 gprintf(gops, go, " ; = 0x%0*lx", hex_width(rv->u), rv->u);
1262 const struct tvec_regty tvty_flags = {
1263 init_uint, trivial_release, eq_uint,
1264 tobuf_uint, frombuf_uint,
1265 parse_flags, dump_flags
1268 int tvec_claimeq_flags(struct tvec_state *tv,
1269 const struct tvec_flaginfo *fi,
1270 unsigned long f0, unsigned long f1,
1271 const char *file, unsigned lno, const char *expr)
1273 union tvec_misc arg;
1275 arg.p = fi; tv->out[0].v.u = f0; tv->in[0].v.u = f1;
1276 return (tvec_claimeq(tv, &tvty_flags, &arg, file, lno, expr));
1279 /*----- Characters --------------------------------------------------------*/
1281 static int tobuf_char(buf *b, const union tvec_regval *rv,
1282 const struct tvec_regdef *rd)
1285 if (0 <= rv->i && rv->i <= UCHAR_MAX) u = rv->i;
1286 else if (rv->i == EOF) u = MASK32;
1288 return (buf_putu32l(b, u));
1291 static int frombuf_char(buf *b, union tvec_regval *rv,
1292 const struct tvec_regdef *rd)
1296 if (buf_getu32l(b, &u)) return (-1);
1297 if (0 <= u && u <= UCHAR_MAX) rv->i = u;
1298 else if (u == MASK32) rv->i = EOF;
1303 static int parse_char(union tvec_regval *rv, const struct tvec_regdef *rd,
1304 struct tvec_state *tv)
1314 if (tvec_readword(tv, &d, ";", "character name")) { rc = -1; goto end; }
1315 if (STRCMP(d.buf, ==, "#eof"))
1318 rc = tvec_error(tv, "unknown character name `%s'", d.buf);
1324 if (ch == '\'') { f |= f_quote; ch = getc(tv->fp); }
1327 if (!(f&f_quote)) goto plain;
1328 case EOF: case '\n':
1329 rc = tvec_syntax(tv, ch, "character"); goto end;
1331 if (read_escape(&ch, tv)) return (-1);
1337 if (ch != '\'') { rc = tvec_syntax(tv, ch, "`''"); goto end; }
1339 if (tvec_flushtoeol(tv, 0)) { rc = -1; goto end; }
1348 static void dump_char(const union tvec_regval *rv,
1349 const struct tvec_regdef *rd,
1351 const struct gprintf_ops *gops, void *go)
1353 if ((style&TVSF_COMPACT) && isprint(rv->i) && rv->i != '\'')
1354 gprintf(gops, go, "%c", (int)rv->i);
1356 format_char(gops, go, rv->i);
1358 if (!(style&TVSF_COMPACT)) {
1359 gprintf(gops, go, " ; = %ld = ", rv->i);
1360 format_signed_hex(gops, go, rv->i);
1364 const struct tvec_regty tvty_char = {
1365 init_int, trivial_release, eq_int,
1366 tobuf_char, frombuf_char,
1367 parse_char, dump_char
1370 int tvec_claimeq_char(struct tvec_state *tv, int c0, int c1,
1371 const char *file, unsigned lno, const char *expr)
1373 tv->out[0].v.i = c0; tv->in[0].v.i = c1;
1374 return (tvec_claimeq(tv, &tvty_char, 0, file, lno, expr));
1377 /*----- Text and byte strings ---------------------------------------------*/
1379 void tvec_allocstring(union tvec_regval *rv, size_t sz)
1381 if (rv->str.sz < sz) { xfree(rv->str.p); rv->str.p = xmalloc(sz); }
1385 void tvec_allocbytes(union tvec_regval *rv, size_t sz)
1387 if (rv->bytes.sz < sz) { xfree(rv->bytes.p); rv->bytes.p = xmalloc(sz); }
1391 static void init_string(union tvec_regval *rv, const struct tvec_regdef *rd)
1392 { rv->str.p = 0; rv->str.sz = 0; }
1394 static void init_bytes(union tvec_regval *rv, const struct tvec_regdef *rd)
1395 { rv->bytes.p = 0; rv->bytes.sz = 0; }
1397 static void release_string(union tvec_regval *rv,
1398 const struct tvec_regdef *rd)
1399 { xfree(rv->str.p); }
1401 static void release_bytes(union tvec_regval *rv,
1402 const struct tvec_regdef *rd)
1403 { xfree(rv->bytes.p); }
1405 static int eq_string(const union tvec_regval *rv0,
1406 const union tvec_regval *rv1,
1407 const struct tvec_regdef *rd)
1409 return (rv0->str.sz == rv1->str.sz &&
1411 MEMCMP(rv0->str.p, ==, rv1->str.p, rv1->str.sz)));
1414 static int eq_bytes(const union tvec_regval *rv0,
1415 const union tvec_regval *rv1,
1416 const struct tvec_regdef *rd)
1418 return (rv0->bytes.sz == rv1->bytes.sz &&
1420 MEMCMP(rv0->bytes.p, ==, rv1->bytes.p, rv1->bytes.sz)));
1423 static int tobuf_string(buf *b, const union tvec_regval *rv,
1424 const struct tvec_regdef *rd)
1425 { return (buf_putmem32l(b, rv->str.p, rv->str.sz)); }
1427 static int tobuf_bytes(buf *b, const union tvec_regval *rv,
1428 const struct tvec_regdef *rd)
1429 { return (buf_putmem32l(b, rv->bytes.p, rv->bytes.sz)); }
1431 static int frombuf_string(buf *b, union tvec_regval *rv,
1432 const struct tvec_regdef *rd)
1437 p = buf_getmem32l(b, &sz); if (!p) return (-1);
1438 tvec_allocstring(rv, sz); memcpy(rv->str.p, p, sz);
1442 static int frombuf_bytes(buf *b, union tvec_regval *rv,
1443 const struct tvec_regdef *rd)
1448 p = buf_getmem32l(b, &sz); if (!p) return (-1);
1449 tvec_allocbytes(rv, sz); memcpy(rv->bytes.p, p, sz);
1453 static int check_string_length(size_t sz, const struct tvec_urange *ur,
1454 struct tvec_state *tv)
1456 if (ur && (ur->min > sz || sz > ur->max))
1457 return (tvec_error(tv,
1458 "invalid string length %lu; must be in [%lu..%lu]",
1459 (unsigned long)sz, ur->min, ur->max));
1463 static int parse_string(union tvec_regval *rv, const struct tvec_regdef *rd,
1464 struct tvec_state *tv)
1466 void *p = rv->str.p;
1468 if (read_compound_string(&p, &rv->str.sz, TVCODE_BARE, tv)) return (-1);
1470 if (check_string_length(rv->str.sz, rd->arg.p, tv)) return (-1);
1474 static int parse_bytes(union tvec_regval *rv, const struct tvec_regdef *rd,
1475 struct tvec_state *tv)
1477 void *p = rv->bytes.p;
1479 if (read_compound_string(&p, &rv->bytes.sz, TVCODE_HEX, tv)) return (-1);
1481 if (check_string_length(rv->bytes.sz, rd->arg.p, tv)) return (-1);
1485 static void dump_string(const union tvec_regval *rv,
1486 const struct tvec_regdef *rd,
1488 const struct gprintf_ops *gops, void *go)
1490 const unsigned char *p, *q, *l;
1492 #define f_nonword 1u
1493 #define f_newline 2u
1495 if (!rv->str.sz) { gprintf(gops, go, "\"\""); return; }
1497 p = (const unsigned char *)rv->str.p; l = p + rv->str.sz;
1498 if (*p == '!' || *p == ';' || *p == '"' || *p == '\'') goto quote;
1499 for (q = p; q < l; q++)
1500 if (*q == '\n' && q != l - 1) f |= f_newline;
1501 else if (!*q || !isgraph(*q) || *q == '\\') f |= f_nonword;
1502 if (f&f_newline) { gprintf(gops, go, "\n\t"); goto quote; }
1503 else if (f&f_nonword) goto quote;
1504 gops->putm(go, (const char *)p, rv->str.sz); return;
1507 gprintf(gops, go, "\"");
1508 for (q = p; q < l; q++)
1509 if (!isprint(*q) || *q == '"') {
1510 if (p < q) gops->putm(go, (const char *)p, q - p);
1511 if (*q == '\n' && !(style&TVSF_COMPACT))
1512 gprintf(gops, go, "\\n\"\t\"");
1514 format_charesc(gops, go, *q, FCF_BRACE);
1516 if (p < q) gops->putm(go, (const char *)p, q - p);
1517 gprintf(gops, go, "\"");
1523 static void dump_bytes(const union tvec_regval *rv,
1524 const struct tvec_regdef *rd,
1526 const struct gprintf_ops *gops, void *go)
1528 const unsigned char *p = rv->bytes.p, *l = p + rv->bytes.sz;
1529 size_t off, sz = rv->bytes.sz;
1534 gprintf(gops, go, style&TVSF_COMPACT ? "\"\"" : "\"\" ; empty");
1538 if (style&TVSF_COMPACT) {
1539 while (p < l) gprintf(gops, go, "%02x", *p++);
1543 if (sz > 16) gprintf(gops, go, "\n\t");
1545 off = 0; wd = hex_width(sz);
1547 if (l - p < 16) n = l - p;
1550 for (i = 0; i < 16; i++) {
1551 if (i < n) gprintf(gops, go, "%02x", p[i]);
1552 else gprintf(gops, go, " ");
1553 if (i%4 == 3) gprintf(gops, go, " ");
1555 gprintf(gops, go, " ; ");
1556 if (sz > 16) gprintf(gops, go, "[%0*lx] ", wd, (unsigned long)off);
1557 for (i = 0; i < n; i++)
1558 gprintf(gops, go, "%c", isprint(p[i]) ? p[i] : '.');
1560 if (p < l) gprintf(gops, go, "\n\t");
1564 const struct tvec_regty tvty_string = {
1565 init_string, release_string, eq_string,
1566 tobuf_string, frombuf_string,
1567 parse_string, dump_string
1570 const struct tvec_regty tvty_bytes = {
1571 init_bytes, release_bytes, eq_bytes,
1572 tobuf_bytes, frombuf_bytes,
1573 parse_bytes, dump_bytes
1576 int tvec_claimeq_string(struct tvec_state *tv,
1577 const char *p0, size_t sz0,
1578 const char *p1, size_t sz1,
1579 const char *file, unsigned lno, const char *expr)
1581 tv->out[0].v.str.p = (/*unconst*/ char *)p0; tv->out[0].v.str.sz = sz0;
1582 tv->in[0].v.str.p =(/*unconst*/ char *) p1; tv->in[0].v.str.sz = sz1;
1583 return (tvec_claimeq(tv, &tvty_string, 0, file, lno, expr));
1586 int tvec_claimeq_strz(struct tvec_state *tv,
1587 const char *p0, const char *p1,
1588 const char *file, unsigned lno, const char *expr)
1590 tv->out[0].v.str.p = (/*unconst*/ char *)p0;
1591 tv->out[0].v.str.sz = strlen(p0);
1592 tv->in[0].v.str.p = (/*unconst*/ char *)p1;
1593 tv->in[0].v.str.sz = strlen(p1);
1594 return (tvec_claimeq(tv, &tvty_string, 0, file, lno, expr));
1597 int tvec_claimeq_bytes(struct tvec_state *tv,
1598 const void *p0, size_t sz0,
1599 const void *p1, size_t sz1,
1600 const char *file, unsigned lno, const char *expr)
1602 tv->out[0].v.bytes.p = (/*unconst*/ void *)p0;
1603 tv->out[0].v.bytes.sz = sz0;
1604 tv->in[0].v.bytes.p = (/*unconst*/ void *)p1;
1605 tv->in[0].v.bytes.sz = sz1;
1606 return (tvec_claimeq(tv, &tvty_bytes, 0, file, lno, expr));
1609 /*----- Buffer type -------------------------------------------------------*/
1611 static int eq_buffer(const union tvec_regval *rv0,
1612 const union tvec_regval *rv1,
1613 const struct tvec_regdef *rd)
1614 { return (rv0->bytes.sz == rv1->bytes.sz); }
1616 static int tobuf_buffer(buf *b, const union tvec_regval *rv,
1617 const struct tvec_regdef *rd)
1618 { return (unsigned_to_buf(b, rv->bytes.sz)); }
1620 static int frombuf_buffer(buf *b, union tvec_regval *rv,
1621 const struct tvec_regdef *rd)
1625 if (unsigned_from_buf(b, &u)) return (-1);
1626 if (u > (size_t)-1) return (-1);
1627 tvec_allocbytes(rv, u); memset(rv->bytes.p, '!', u);
1631 static const char units[] = "kMGTPEZY";
1633 static int parse_buffer(union tvec_regval *rv,
1634 const struct tvec_regdef *rd,
1635 struct tvec_state *tv)
1638 const char *q, *unit;
1645 if (tvec_readword(tv, &d, ";", "buffer length")) { rc = -1; goto end; }
1646 if (parse_unsigned_integer(&u, &q, d.buf)) goto bad;
1648 tvec_skipspc(tv); pos = d.len;
1649 if (!tvec_readword(tv, &d, ";", 0)) pos++;
1653 if (u > (size_t)-1) goto rangerr;
1654 for (t = u, unit = units; *unit; unit++) {
1655 if (t > (size_t)-1/1024) f |= f_range;
1657 if (*q == *unit && (!q[1] || q[1] == 'B')) {
1658 if (f&f_range) goto rangerr;
1659 u = t; q += 2; break;
1662 if (*q && *q != ';') goto bad;
1663 if (check_string_length(u, rd->arg.p, tv)) { rc = -1; goto end; }
1665 if (tvec_flushtoeol(tv, 0)) { rc = -1; goto end; }
1666 tvec_allocbytes(rv, u); memset(rv->bytes.p, '?', u);
1669 DDESTROY(&d); return (rc);
1672 tvec_error(tv, "invalid buffer length `%s'", d.buf);
1676 tvec_error(tv, "buffer length `%s' out of range", d.buf);
1682 static void dump_buffer(const union tvec_regval *rv,
1683 const struct tvec_regdef *rd,
1685 const struct gprintf_ops *gops, void *go)
1688 unsigned long u = rv->bytes.sz;
1691 gprintf(gops, go, "%lu B", u);
1693 for (unit = units, u /= 1024; !(u%1024) && unit[1]; u /= 1024, unit++);
1694 gprintf(gops, go, "%lu %cB", u, *unit);
1698 const struct tvec_regty tvty_buffer = {
1699 init_bytes, release_bytes, eq_buffer,
1700 tobuf_buffer, frombuf_buffer,
1701 parse_buffer, dump_buffer
1704 /*----- That's all, folks -------------------------------------------------*/