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char *buffer;
size_t i = 0;
char delimiter = **pointer;
if (++(*pointer) + 1 >= stop)
return nil;
buffer = of_alloc(stop - *pointer, 1);
while (*pointer < stop) {
/* Parse escape codes */
if (**pointer == '\\') {
if (++(*pointer) >= stop) {
free(buffer);
return nil;
}
switch (**pointer) {
case '"':
case '\\':
case '/':
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char *buffer;
size_t i = 0;
char delimiter = **pointer;
if (++(*pointer) + 1 >= stop)
return nil;
buffer = OFAllocMemory(stop - *pointer, 1);
while (*pointer < stop) {
/* Parse escape codes */
if (**pointer == '\\') {
if (++(*pointer) >= stop) {
OFFreeMemory(buffer);
return nil;
}
switch (**pointer) {
case '"':
case '\\':
case '/':
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case 'u':;
OFChar16 c1, c2;
OFUnichar c;
size_t l;
c1 = parseUnicodeEscape(*pointer - 1, stop);
if (c1 == 0xFFFF) {
free(buffer);
return nil;
}
/* Low surrogate */
if ((c1 & 0xFC00) == 0xDC00) {
free(buffer);
return nil;
}
/* Normal character */
if ((c1 & 0xFC00) != 0xD800) {
l = of_string_utf8_encode(c1,
buffer + i);
if (l == 0) {
free(buffer);
return nil;
}
i += l;
*pointer += 5;
break;
}
/*
* If we are still here, we only got one UTF-16
* surrogate and now need to get the other one
* in order to produce UTF-8 and not CESU-8.
*/
c2 = parseUnicodeEscape(*pointer + 5, stop);
if (c2 == 0xFFFF) {
free(buffer);
return nil;
}
c = (((c1 & 0x3FF) << 10) |
(c2 & 0x3FF)) + 0x10000;
l = of_string_utf8_encode(c, buffer + i);
if (l == 0) {
free(buffer);
return nil;
}
i += l;
*pointer += 11;
break;
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case 'u':;
OFChar16 c1, c2;
OFUnichar c;
size_t l;
c1 = parseUnicodeEscape(*pointer - 1, stop);
if (c1 == 0xFFFF) {
OFFreeMemory(buffer);
return nil;
}
/* Low surrogate */
if ((c1 & 0xFC00) == 0xDC00) {
OFFreeMemory(buffer);
return nil;
}
/* Normal character */
if ((c1 & 0xFC00) != 0xD800) {
l = of_string_utf8_encode(c1,
buffer + i);
if (l == 0) {
OFFreeMemory(buffer);
return nil;
}
i += l;
*pointer += 5;
break;
}
/*
* If we are still here, we only got one UTF-16
* surrogate and now need to get the other one
* in order to produce UTF-8 and not CESU-8.
*/
c2 = parseUnicodeEscape(*pointer + 5, stop);
if (c2 == 0xFFFF) {
OFFreeMemory(buffer);
return nil;
}
c = (((c1 & 0x3FF) << 10) |
(c2 & 0x3FF)) + 0x10000;
l = of_string_utf8_encode(c, buffer + i);
if (l == 0) {
OFFreeMemory(buffer);
return nil;
}
i += l;
*pointer += 11;
break;
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break;
case '\n':
(*pointer)++;
(*line)++;
break;
default:
free(buffer);
return nil;
}
/* End of string found */
} else if (**pointer == delimiter) {
OFString *ret;
@try {
ret = [OFString stringWithUTF8String: buffer
length: i];
} @finally {
free(buffer);
}
(*pointer)++;
return ret;
/* Newlines in strings are disallowed */
} else if (**pointer == '\n' || **pointer == '\r') {
(*line)++;
free(buffer);
return nil;
} else {
buffer[i++] = **pointer;
(*pointer)++;
}
}
free(buffer);
return nil;
}
static inline OFString *
parseIdentifier(const char **pointer, const char *stop)
{
char *buffer;
size_t i = 0;
buffer = of_alloc(stop - *pointer, 1);
while (*pointer < stop) {
if ((**pointer >= 'a' && **pointer <= 'z') ||
(**pointer >= 'A' && **pointer <= 'Z') ||
(**pointer >= '0' && **pointer <= '9') ||
**pointer == '_' || **pointer == '$' ||
(**pointer & 0x80)) {
buffer[i++] = **pointer;
(*pointer)++;
} else if (**pointer == '\\') {
OFChar16 c1, c2;
OFUnichar c;
size_t l;
if (++(*pointer) >= stop || **pointer != 'u') {
free(buffer);
return nil;
}
c1 = parseUnicodeEscape(*pointer - 1, stop);
if (c1 == 0xFFFF) {
free(buffer);
return nil;
}
/* Low surrogate */
if ((c1 & 0xFC00) == 0xDC00) {
free(buffer);
return nil;
}
/* Normal character */
if ((c1 & 0xFC00) != 0xD800) {
l = of_string_utf8_encode(c1, buffer + i);
if (l == 0) {
free(buffer);
return nil;
}
i += l;
*pointer += 5;
continue;
}
/*
* If we are still here, we only got one UTF-16
* surrogate and now need to get the other one in order
* to produce UTF-8 and not CESU-8.
*/
c2 = parseUnicodeEscape(*pointer + 5, stop);
if (c2 == 0xFFFF) {
free(buffer);
return nil;
}
c = (((c1 & 0x3FF) << 10) | (c2 & 0x3FF)) + 0x10000;
l = of_string_utf8_encode(c, buffer + i);
if (l == 0) {
free(buffer);
return nil;
}
i += l;
*pointer += 11;
} else {
OFString *ret;
if (i == 0 || (buffer[0] >= '0' && buffer[0] <= '9')) {
free(buffer);
return nil;
}
@try {
ret = [OFString stringWithUTF8String: buffer
length: i];
} @finally {
free(buffer);
}
return ret;
}
}
/*
* It is never possible to end with an identifier, thus we should never
* reach stop.
*/
free(buffer);
return nil;
}
static inline OFMutableArray *
parseArray(const char **pointer, const char *stop, size_t *line,
size_t depthLimit)
{
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|
break;
case '\n':
(*pointer)++;
(*line)++;
break;
default:
OFFreeMemory(buffer);
return nil;
}
/* End of string found */
} else if (**pointer == delimiter) {
OFString *ret;
@try {
ret = [OFString stringWithUTF8String: buffer
length: i];
} @finally {
OFFreeMemory(buffer);
}
(*pointer)++;
return ret;
/* Newlines in strings are disallowed */
} else if (**pointer == '\n' || **pointer == '\r') {
(*line)++;
OFFreeMemory(buffer);
return nil;
} else {
buffer[i++] = **pointer;
(*pointer)++;
}
}
OFFreeMemory(buffer);
return nil;
}
static inline OFString *
parseIdentifier(const char **pointer, const char *stop)
{
char *buffer;
size_t i = 0;
buffer = OFAllocMemory(stop - *pointer, 1);
while (*pointer < stop) {
if ((**pointer >= 'a' && **pointer <= 'z') ||
(**pointer >= 'A' && **pointer <= 'Z') ||
(**pointer >= '0' && **pointer <= '9') ||
**pointer == '_' || **pointer == '$' ||
(**pointer & 0x80)) {
buffer[i++] = **pointer;
(*pointer)++;
} else if (**pointer == '\\') {
OFChar16 c1, c2;
OFUnichar c;
size_t l;
if (++(*pointer) >= stop || **pointer != 'u') {
OFFreeMemory(buffer);
return nil;
}
c1 = parseUnicodeEscape(*pointer - 1, stop);
if (c1 == 0xFFFF) {
OFFreeMemory(buffer);
return nil;
}
/* Low surrogate */
if ((c1 & 0xFC00) == 0xDC00) {
OFFreeMemory(buffer);
return nil;
}
/* Normal character */
if ((c1 & 0xFC00) != 0xD800) {
l = of_string_utf8_encode(c1, buffer + i);
if (l == 0) {
OFFreeMemory(buffer);
return nil;
}
i += l;
*pointer += 5;
continue;
}
/*
* If we are still here, we only got one UTF-16
* surrogate and now need to get the other one in order
* to produce UTF-8 and not CESU-8.
*/
c2 = parseUnicodeEscape(*pointer + 5, stop);
if (c2 == 0xFFFF) {
OFFreeMemory(buffer);
return nil;
}
c = (((c1 & 0x3FF) << 10) | (c2 & 0x3FF)) + 0x10000;
l = of_string_utf8_encode(c, buffer + i);
if (l == 0) {
OFFreeMemory(buffer);
return nil;
}
i += l;
*pointer += 11;
} else {
OFString *ret;
if (i == 0 || (buffer[0] >= '0' && buffer[0] <= '9')) {
OFFreeMemory(buffer);
return nil;
}
@try {
ret = [OFString stringWithUTF8String: buffer
length: i];
} @finally {
OFFreeMemory(buffer);
}
return ret;
}
}
/*
* It is never possible to end with an identifier, thus we should never
* reach stop.
*/
OFFreeMemory(buffer);
return nil;
}
static inline OFMutableArray *
parseArray(const char **pointer, const char *stop, size_t *line,
size_t depthLimit)
{
|