static int json_write_pretty_get_array_size(const struct json_array_s* array,
size_t depth, size_t indent_size, size_t newline_size, size_t* size) {
struct json_array_element_s* element;
*size += 1; // '['
*size += newline_size; // need a newline next
if (1 < array->length) {
*size += (array->length - 1); // ','s seperate each element
}
for (element = array->start; 0 != element; element = element->next) {
// each element gets an indent and newline
*size += (depth + 1) * indent_size;
*size += newline_size;
if (json_write_pretty_get_value_size(
element->value, depth + 1, indent_size, newline_size, size)) {
// value was malformed!
return 1;
}
}
*size += depth * indent_size;
*size += 1; // ']'
*size += newline_size; // need a newline next
return 0;
}
void *json_write_pretty(const struct json_value_s *value, const char *indent,
const char *newline, size_t *out_size) {
size_t size = 0;
size_t indent_size = 0;
size_t newline_size = 0;
char *data = 0;
char *data_end = 0;
if (0 == value) {
return 0;
}
if (0 == indent) {
indent = " "; // default to two spaces
}
if (0 == newline) {
newline = "\n"; // default to linux newlines
}
while ('\0' != indent[indent_size]) {
++indent_size; // skip non-null terminating characters
}
while ('\0' != newline[newline_size]) {
++newline_size; // skip non-null terminating characters
}
if (json_write_pretty_get_value_size(value, 0, indent_size, newline_size,
&size)) {
// value was malformed!
return 0;
}
size += 1; // for the '\0' null terminating character
data = malloc(size);
if (0 == data) {
// malloc failed!
return 0;
}
data_end = json_write_pretty_value(value, 0, indent, newline, data);
if (0 == data_end) {
// bad chi occurred!
free(data);
return 0;
}
// null terminated the string
*data_end = '\0';
if (0 != out_size) {
*out_size = size;
}
return data;
}
static int json_write_pretty_get_object_size(const struct json_object_s* object,
size_t depth, size_t indent_size, size_t newline_size, size_t* size) {
struct json_object_element_s* element;
*size += 1; // '{'
*size += newline_size; // need a newline next
if (1 < object->length) {
*size += object->length - 1; // ','s seperate each element
}
for (element = object->start; 0 != element; element = element->next) {
// each element gets an indent and newline
*size += (depth + 1) * indent_size;
*size += newline_size;
if (json_write_pretty_get_string_size(element->name, size)) {
// string was malformed!
return 1;
}
*size += 3; // seperate each name/value pair with " : "
if (json_write_pretty_get_value_size(element->value, depth + 1, indent_size, newline_size, size)) {
// value was malformed!
return 1;
}
}
*size += depth * indent_size;
*size += 1; // '}'
*size += newline_size; // need a newline next
return 0;
}
static int json_write_pretty_get_array_size(const struct json_array_s *array,
size_t depth, size_t indent_size,
size_t newline_size, size_t *size) {
struct json_array_element_s *element;
*size += 1; // '['
if (0 < array->length) {
// if we have any elements we need to add a newline after our '['
*size += newline_size;
*size += array->length - 1; // ','s seperate each element
for (element = array->start; 0 != element; element = element->next) {
// each element gets an indent
*size += (depth + 1) * indent_size;
if (json_write_pretty_get_value_size(element->value, depth + 1, indent_size,
newline_size, size)) {
// value was malformed!
return 1;
}
// each element gets a newline too
*size += newline_size;
}
// since we wrote out some elements, need to add a newline and indentation
// to the trailing ']'
*size += depth * indent_size;
}
*size += 1; // ']'
return 0;
}
