98 lines
2.2 KiB
C
98 lines
2.2 KiB
C
#if defined(UNIX)
|
|
|
|
#include <ctype.h>
|
|
#include <errno.h>
|
|
#include <stdlib.h>
|
|
|
|
#include "misc.h"
|
|
#include "mpconfig.h"
|
|
#include "qstr.h"
|
|
#include "nlr.h"
|
|
#include "obj.h"
|
|
|
|
long strtonum(const char *restrict s, int base) {
|
|
int c, neg = 0;
|
|
const char *p = s;
|
|
char *num;
|
|
long found;
|
|
|
|
// check radix base
|
|
if ((base != 0 && base < 2) || base > 36) {
|
|
nlr_jump(mp_obj_new_exception_msg(MP_QSTR_ValueError, "ValueError: int() arg 2 must be >=2 and <= 36"));
|
|
}
|
|
// skip surrounded whitespace
|
|
while (isspace((c = *(p++))));
|
|
if (c == 0) {
|
|
goto value_error;
|
|
}
|
|
// preced sign
|
|
if (c == '+' || c == '-') {
|
|
neg = - (c == '-');
|
|
c = *(p++);
|
|
}
|
|
|
|
// find real radix base, and strip preced '0x', '0o' and '0b'
|
|
// TODO somehow merge with similar code in parse.c
|
|
if ((base == 0 || base == 16) && c == '0') {
|
|
c = *(p++);
|
|
if ((c | 32) == 'x') {
|
|
base = 16;
|
|
} else if (base == 0 && (c | 32) == 'o') {
|
|
base = 8;
|
|
} else if (base == 0 && (c | 32) == 'b') {
|
|
base = 2;
|
|
} else {
|
|
base = 10;
|
|
p -= 2;
|
|
}
|
|
} else if (base == 8 && c == '0') {
|
|
c = *(p++);
|
|
if ((c | 32) != 'o') {
|
|
p -= 2;
|
|
}
|
|
} else if (base == 2 && c == '0') {
|
|
c = *(p++);
|
|
if ((c | 32) != 'b') {
|
|
p -= 2;
|
|
}
|
|
} else {
|
|
if (base == 0) base = 10;
|
|
p--;
|
|
}
|
|
|
|
errno = 0;
|
|
found = strtol(p, &num, base);
|
|
if (errno) {
|
|
goto value_error;
|
|
} else if (found && *(num) == 0) {
|
|
goto done;
|
|
} else if (found || num != p) {
|
|
goto check_tail_space;
|
|
} else {
|
|
goto value_error;
|
|
}
|
|
|
|
check_tail_space:
|
|
if (*(num) != 0) {
|
|
while (isspace((c = *(num++))));
|
|
if (c != 0) {
|
|
goto value_error;
|
|
}
|
|
}
|
|
|
|
done:
|
|
return (found ^ neg) - neg;
|
|
|
|
value_error:
|
|
nlr_jump(mp_obj_new_exception_msg_2_args(MP_QSTR_ValueError, "invalid literal for int() with base %d: '%s'", (void*)(machine_uint_t)base, s));
|
|
}
|
|
|
|
#else /* defined(UNIX) */
|
|
|
|
long strtonum(const char *restrict s, int base) {
|
|
// TODO port strtol to stm
|
|
return 0;
|
|
}
|
|
|
|
#endif /* defined(UNIX) */
|