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if (*tokend != 0 || errno) |
goto failed; |
} else { |
v_int = strtoll(buf, &tokend, 10); |
if (*tokend != 0 || errno || v_int < JSON_MININT || v_int > JSON_MAXINT) |
goto failed; |
} |
/* create value struct */ |
jv = mk_value(ctx, type, 0, true); |
if (!jv) |
return false; |
if (type == JSON_FLOAT) { |
jv->u.v_float = v_float; |
} else { |
jv->u.v_int = v_int; |
} |
*src_p = src; |
return true; |
failed: |
if (!errno) |
errno = EINVAL; |
return err_false(ctx, ""Number parse failed""); |
} |
/* |
* String parsing |
*/ |
static int parse_hex(const char *s, const char *end) |
{ |
int v = 0, c, i, x; |
if (s + 4 > end) |
return -1; |
for (i = 0; i < 4; i++) { |
c = s[i]; |
if (c >= '0' && c <= '9') { |
x = c - '0'; |
} else if (c >= 'a' && c <= 'f') { |
x = c - 'a' + 10; |
} else if (c >= 'A' && c <= 'F') { |
x = c - 'A' + 10; |
} else { |
return -1; |
} |
v = (v << 4) | x; |
} |
return v; |
} |
/* process \uXXXX escapes, merge surrogates */ |
static bool parse_uescape(struct JsonContext *ctx, char **dst_p, char *dstend, |
const char **src_p, const char *end) |
{ |
int c, c2; |
const char *src = *src_p; |
c = parse_hex(src, end); |
if (c <= 0) |
return err_false(ctx, ""Invalid hex escape""); |
src += 4; |
if (c >= 0xD800 && c <= 0xDFFF) { |
/* first surrogate */ |
if (c >= 0xDC00) |
return err_false(ctx, ""Invalid UTF16 escape""); |
if (src + 6 > end) |
return err_false(ctx, ""Invalid UTF16 escape""); |
/* second surrogate */ |
if (src[0] != '\\' || src[1] != 'u') |
return err_false(ctx, ""Invalid UTF16 escape""); |
c2 = parse_hex(src + 2, end); |
if (c2 < 0xDC00 || c2 > 0xDFFF) |
return err_false(ctx, ""Invalid UTF16 escape""); |
c = 0x10000 + ((c & 0x3FF) << 10) + (c2 & 0x3FF); |
src += 6; |
} |
/* now write char */ |
if (!utf8_put_char(c, dst_p, dstend)) |
return err_false(ctx, ""Invalid UTF16 escape""); |
*src_p = src; |
return true; |
} |
#define meta_string(c) (((c) == '""' || (c) == '\\' || (c) == '\0' || \ |
(c) == '\n' || ((c) & 0x80) != 0) ? 1 : 0) |
static const uint8_t string_examine_chars[] = INTMAP256_CONST(meta_string); |
/* look for string end, validate contents */ |
static bool scan_string(struct JsonContext *ctx, const char *src, const char *end, |
const char **str_end_p, bool *hasesc_p, int64_t *nlines_p) |
{ |
bool hasesc = false; |
int64_t lines = 0; |
unsigned int n; |
bool check_utf8 = true; |