bool TRI_PrintJson (int fd, TRI_json_t const* object) {
TRI_string_buffer_t buffer;
char const* p;
size_t n;
TRI_InitStringBuffer(&buffer, TRI_UNKNOWN_MEM_ZONE);
StringifyJson(buffer._memoryZone, &buffer, object, true);
p = TRI_BeginStringBuffer(&buffer);
n = TRI_LengthStringBuffer(&buffer);
while (0 < n) {
ssize_t m = TRI_WRITE(fd, p, n);
if (m <= 0) {
TRI_AnnihilateStringBuffer(&buffer);
return false;
}
n -= m;
p += m;
}
TRI_AnnihilateStringBuffer(&buffer);
return true;
}
bool TRI_PrintJson (int fd,
TRI_json_t const* object,
bool appendNewline) {
TRI_string_buffer_t buffer;
char const* p;
size_t n;
if (object == NULL) {
// sanity check
return false;
}
TRI_InitStringBuffer(&buffer, TRI_UNKNOWN_MEM_ZONE);
if (StringifyJson(buffer._memoryZone, &buffer, object, true) != TRI_ERROR_NO_ERROR) {
TRI_AnnihilateStringBuffer(&buffer);
return false;
}
if (TRI_LengthStringBuffer(&buffer) == 0) {
// should not happen
return false;
}
if (appendNewline) {
// add the newline here so we only need one write operation in the ideal case
TRI_AppendCharStringBuffer(&buffer, '\n');
}
p = TRI_BeginStringBuffer(&buffer);
n = TRI_LengthStringBuffer(&buffer);
while (0 < n) {
ssize_t m = TRI_WRITE(fd, p, (TRI_write_t) n);
if (m <= 0) {
TRI_AnnihilateStringBuffer(&buffer);
return false;
}
n -= m;
p += m;
}
TRI_AnnihilateStringBuffer(&buffer);
return true;
}
int TRI_Stringify2Json (TRI_string_buffer_t* buffer, TRI_json_t const* object) {
return StringifyJson(buffer->_memoryZone, buffer, object, false);
}
static int StringifyJson (TRI_memory_zone_t* zone,
TRI_string_buffer_t* buffer,
TRI_json_t const* object,
bool braces) {
size_t n;
size_t i;
size_t outLength;
char* ptr;
int res;
switch (object->_type) {
case TRI_JSON_UNUSED:
break;
case TRI_JSON_NULL:
res = TRI_AppendStringStringBuffer(buffer, "null");
if (res != TRI_ERROR_NO_ERROR) {
return res;
}
break;
case TRI_JSON_BOOLEAN:
if (object->_value._boolean) {
res = TRI_AppendStringStringBuffer(buffer, "true");
}
else {
res = TRI_AppendStringStringBuffer(buffer, "false");
}
if (res != TRI_ERROR_NO_ERROR) {
return res;
}
break;
case TRI_JSON_NUMBER:
res = TRI_AppendDoubleStringBuffer(buffer, object->_value._number);
if (res != TRI_ERROR_NO_ERROR) {
return res;
}
break;
case TRI_JSON_STRING:
res = TRI_AppendStringStringBuffer(buffer, "\"");
if (res != TRI_ERROR_NO_ERROR) {
return res;
}
ptr = TRI_EscapeUtf8StringZ(zone,
object->_value._string.data,
object->_value._string.length - 1,
false,
&outLength);
if (ptr == NULL) {
return TRI_ERROR_OUT_OF_MEMORY;
}
res = TRI_AppendString2StringBuffer(buffer, ptr, outLength);
if (res != TRI_ERROR_NO_ERROR) {
return res;
}
TRI_Free(zone, ptr);
res = TRI_AppendStringStringBuffer(buffer, "\"");
if (res != TRI_ERROR_NO_ERROR) {
return res;
}
break;
case TRI_JSON_ARRAY:
if (braces) {
res = TRI_AppendStringStringBuffer(buffer, "{");
if (res != TRI_ERROR_NO_ERROR) {
return res;
}
}
n = object->_value._objects._length;
for (i = 0; i < n; i += 2) {
if (0 < i) {
res = TRI_AppendStringStringBuffer(buffer, ",");
if (res != TRI_ERROR_NO_ERROR) {
return res;
}
}
res = StringifyJson(zone, buffer, TRI_AtVector(&object->_value._objects, i), true);
if (res != TRI_ERROR_NO_ERROR) {
return res;
}
res = TRI_AppendCharStringBuffer(buffer, ':');
if (res != TRI_ERROR_NO_ERROR) {
return res;
}
res = StringifyJson(zone, buffer, TRI_AtVector(&object->_value._objects, i + 1), true);
if (res != TRI_ERROR_NO_ERROR) {
return res;
}
}
if (braces) {
res = TRI_AppendStringStringBuffer(buffer, "}");
if (res != TRI_ERROR_NO_ERROR) {
return res;
}
}
break;
case TRI_JSON_LIST:
if (braces) {
res = TRI_AppendStringStringBuffer(buffer, "[");
if (res != TRI_ERROR_NO_ERROR) {
return res;
}
}
n = object->_value._objects._length;
for (i = 0; i < n; ++i) {
if (0 < i) {
res = TRI_AppendStringStringBuffer(buffer, ",");
if (res != TRI_ERROR_NO_ERROR) {
return res;
}
}
res = StringifyJson(zone, buffer, TRI_AtVector(&object->_value._objects, i), true);
if (res != TRI_ERROR_NO_ERROR) {
return res;
}
}
if (braces) {
res = TRI_AppendStringStringBuffer(buffer, "]");
if (res != TRI_ERROR_NO_ERROR) {
return res;
}
}
break;
}
return TRI_ERROR_NO_ERROR;
}
static int StringifyJson (TRI_memory_zone_t* zone,
TRI_string_buffer_t* buffer,
TRI_json_t const* object,
bool braces) {
int res;
switch (object->_type) {
case TRI_JSON_UNUSED: {
break;
}
case TRI_JSON_NULL: {
res = TRI_AppendString2StringBuffer(buffer, "null", 4); // strlen("null")
if (res != TRI_ERROR_NO_ERROR) {
return res;
}
break;
}
case TRI_JSON_BOOLEAN: {
if (object->_value._boolean) {
res = TRI_AppendString2StringBuffer(buffer, "true", 4); // strlen("true")
}
else {
res = TRI_AppendString2StringBuffer(buffer, "false", 5); // strlen("false")
}
if (res != TRI_ERROR_NO_ERROR) {
return res;
}
break;
}
case TRI_JSON_NUMBER: {
res = TRI_AppendDoubleStringBuffer(buffer, object->_value._number);
if (res != TRI_ERROR_NO_ERROR) {
return res;
}
break;
}
case TRI_JSON_STRING:
case TRI_JSON_STRING_REFERENCE: {
res = TRI_AppendCharStringBuffer(buffer, '\"');
if (res != TRI_ERROR_NO_ERROR) {
return res;
}
if (object->_value._string.length > 0) {
// optimisation for the empty string
res = TRI_AppendJsonEncodedStringStringBuffer(buffer, object->_value._string.data, false);
if (res != TRI_ERROR_NO_ERROR) {
return TRI_ERROR_OUT_OF_MEMORY;
}
}
res = TRI_AppendCharStringBuffer(buffer, '\"');
if (res != TRI_ERROR_NO_ERROR) {
return res;
}
break;
}
case TRI_JSON_ARRAY: {
size_t i, n;
if (braces) {
res = TRI_AppendCharStringBuffer(buffer, '{');
if (res != TRI_ERROR_NO_ERROR) {
return res;
}
}
n = object->_value._objects._length;
for (i = 0; i < n; i += 2) {
if (0 < i) {
res = TRI_AppendCharStringBuffer(buffer, ',');
if (res != TRI_ERROR_NO_ERROR) {
return res;
}
}
res = StringifyJson(zone, buffer, (const TRI_json_t*) TRI_AtVector(&object->_value._objects, i), true);
if (res != TRI_ERROR_NO_ERROR) {
return res;
}
res = TRI_AppendCharStringBuffer(buffer, ':');
if (res != TRI_ERROR_NO_ERROR) {
return res;
}
res = StringifyJson(zone, buffer, (const TRI_json_t*) TRI_AtVector(&object->_value._objects, i + 1), true);
if (res != TRI_ERROR_NO_ERROR) {
return res;
}
}
if (braces) {
res = TRI_AppendCharStringBuffer(buffer, '}');
if (res != TRI_ERROR_NO_ERROR) {
return res;
}
}
break;
}
case TRI_JSON_LIST: {
size_t i, n;
if (braces) {
res = TRI_AppendCharStringBuffer(buffer, '[');
if (res != TRI_ERROR_NO_ERROR) {
return res;
}
}
n = object->_value._objects._length;
for (i = 0; i < n; ++i) {
if (0 < i) {
res = TRI_AppendCharStringBuffer(buffer, ',');
if (res != TRI_ERROR_NO_ERROR) {
return res;
}
}
res = StringifyJson(zone, buffer, (const TRI_json_t*) TRI_AtVector(&object->_value._objects, i), true);
if (res != TRI_ERROR_NO_ERROR) {
return res;
}
}
if (braces) {
res = TRI_AppendCharStringBuffer(buffer, ']');
if (res != TRI_ERROR_NO_ERROR) {
return res;
}
}
break;
}
}
return TRI_ERROR_NO_ERROR;
}
