in src/is_json.c [68:83]
static int json_parse(const unsigned char **, const unsigned char *, size_t *,
size_t);
static int
json_isspace(const unsigned char uc)
{
switch (uc) {
case ' ':
case '\n':
case '\r':
case '\t':
return 1;
default:
return 0;
}
}