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/* ISC license. */
#ifndef FMTSCAN_INTERNAL_H
#define FMTSCAN_INTERNAL_H
#include <sys/types.h>
#include <stdint.h>
#include <errno.h>
#include <limits.h>
#include <skalibs/bytestr.h>
#include <skalibs/fmtscan.h>
#define SCANB(bits) \
size_t uint##bits##_scan_base (char const *s, uint##bits##_t *u, unsigned int base) \
{ \
static uint##bits##_t const max = UINT##bits##_MAX ; \
uint##bits##_t result = 0 ; \
size_t pos = 0 ; \
for (;; pos++) \
{ \
register unsigned char c = fmtscan_num(s[pos], base) ; \
if ((c >= base) || (result > ((max - c) / base))) break ; \
result = result * base + c ; \
} \
if (pos) *u = result ; \
return pos ; \
} \
#define SCANB0(bits) \
size_t uint##bits##0_scan_base (char const *s, uint##bits##_t *u, unsigned int base) \
{ \
register size_t pos = uint##bits##_scan_base(s, u, base) ; \
if (!pos) return (errno = EINVAL, 0) ; \
if (!s[pos]) return pos ; \
errno = (fmtscan_num(s[pos], base) < base) ? EDOM : EINVAL ; \
return 0 ; \
} \
#define SCANS(bits) \
size_t int##bits##_scan (char const *s, int##bits##_t *n) \
{ \
uint##bits##_t tmp ; \
register size_t r = 0 ; \
register unsigned int sign = 0 ; \
if (*s == '-') \
{ \
r = 1 + uint##bits##_scan(s+1, &tmp) ; \
if (r == 1) return 0 ; \
if (tmp == 0) *n = 0 ; \
else \
{ \
if (tmp-1 > -(INT##bits##_MIN+1)) \
{ \
tmp /= 10 ; \
r-- ; \
} \
*n = INT##bits##_MIN + (-(INT##bits##_MIN+1) - (tmp-1)) ; \
} \
return r ; \
} \
if (*s == '+') (s++, sign++) ; \
r = uint##bits##_scan(s, &tmp) ; \
if (!r) return 0 ; \
r += sign ; \
if (tmp > INT##bits##_MAX) \
{ \
tmp /= 10 ; \
r-- ; \
} \
*n = tmp ; \
return r ; \
} \
#define SCANS0(bits) \
size_t int##bits##0_scan (char const *s, int##bits##_t *u) \
{ \
register size_t pos = int##bits##_scan(s, u) ; \
if (!pos) return (errno = EINVAL, 0) ; \
if (!s[pos]) return pos ; \
errno = (fmtscan_num(s[pos], 10) < 10) ? EDOM : EINVAL ; \
return 0 ; \
} \
#define SCANL(bits) \
size_t uint##bits##_scanlist (uint##bits##_t *tab, size_t max, char const *s, size_t *num) \
{ \
size_t i = 0, len = 0 ; \
for (; s[len] && (i < max) ; i++) \
{ \
register size_t w = uint##bits##_scan(s + len, tab + i) ; \
if (!w) break ; \
len += w ; \
while (byte_chr(",:; \t\r\n", 7, s[len]) < 7) len++ ; \
} \
*num = i ; \
return len ; \
} \
#define SCANSL(bits) \
size_t int##bits##_scanlist (int##bits##_t *tab, size_t max, char const *s, size_t *num) \
{ \
size_t i = 0, len = 0 ; \
for (; s[len] && (i < max) ; i++) \
{ \
register size_t w = int##bits##_scan(s + len, tab + i) ; \
if (!w) break ; \
len += w ; \
while (byte_chr(",:; \t\r\n", 7, s[len]) < 7) len++ ; \
} \
*num = i ; \
return len ; \
} \
#define FMTL(bits) \
size_t uint##bits##_fmtlist (char *s, uint##bits##_t const *tab, size_t n) \
{ \
size_t i = 0, len = 0 ; \
for (; i < n ; i++) \
{ \
register size_t w = uint##bits##_fmt(s, tab[i]) ; \
len += w ; \
if (s) \
{ \
s += w ; \
if (i < n-1) { *s++ = ',' ; len++ ; } \
} \
} \
return len ; \
} \
#define FMTB(bits) \
size_t uint##bits##_fmt_base (char *s, uint##bits##_t x, unsigned int base) \
{ \
register size_t len = 1 ; \
{ \
register uint##bits##_t q = x ; \
while (q >= base) { len++ ; q /= base ; } \
} \
if (s) \
{ \
s += len ; \
do { *--s = fmtscan_asc(x % base) ; x /= base ; } while (x) ; \
} \
return len ; \
} \
#define FMTB0(bits) \
size_t uint##bits##0_fmt_base (char *s, uint##bits##_t x, register size_t n, unsigned int base) \
{ \
register size_t len = uint##bits##_fmt_base(0, x, base) ; \
while (n-- > len) *s++ = '0' ; \
return uint##bits##_fmt_base(s, x, base) ; \
} \
#define FMTS(bits) \
size_t int##bits##_fmt (char *fmt, int##bits##_t n) \
{ \
if (n >= 0) return uint##bits##_fmt(fmt, n) ; \
if (fmt) *fmt++ = '-' ; \
return 1 + uint##bits##_fmt(fmt, -n) ; \
} \
#define FMTSL(bits) \
size_t int##bits##_fmtlist (char *s, int##bits##_t const *tab, size_t n) \
{ \
size_t i = 0, len = 0 ; \
for (; i < n ; i++) \
{ \
register size_t w = int##bits##_fmt(s, tab[i]) ; \
len += w ; \
if (s) \
{ \
s += w ; \
if (i < n-1) { *s++ = ',' ; len++ ; } \
} \
} \
return len ; \
} \
#endif
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