/*
- * Copyright (c) 2009 Petri Lehtinen <petri@digip.org>
+ * Copyright (c) 2009
-2011 Petri Lehtinen <petri@digip.org>
*
* Jansson is free software; you can redistribute it and/or modify
* it under the terms of the MIT license. See LICENSE for details.
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
-#include <stdint.h>
#include <assert.h>
#include <jansson.h>
#define MAX_INTEGER_STR_LENGTH 100
#define MAX_REAL_STR_LENGTH 100
-typedef int (*dump_func)(const char *buffer, int size, void *data);
-
struct string
{
char *buffer;
int size;
};
-static int dump_to_strbuffer(const char *buffer, int size, void *data)
+static int dump_to_strbuffer(const char *buffer, size_t size, void *data)
{
return strbuffer_append_bytes((strbuffer_t *)data, buffer, size);
}
-static int dump_to_file(const char *buffer, int size, void *data)
+static int dump_to_file(const char *buffer, size_t size, void *data)
{
FILE *dest = (FILE *)data;
if(fwrite(buffer, size, 1, dest) != 1)
return 0;
}
-/* 256 spaces (the maximum indentation size) */
-static char whitespace[] = " ";
+/* 32 spaces (the maximum indentation size) */
+static char whitespace[] = " ";
-static int dump_indent(unsigned long flags, int depth, int space, dump_func dump, void *data)
+static int dump_indent(size_t flags, int depth, int space, json_dump_callback_t dump, void *data)
{
if(JSON_INDENT(flags) > 0)
{
return 0;
}
-static int dump_string(const char *str, int ascii, dump_func dump, void *data)
+static int dump_string(const char *str, int ascii, json_dump_callback_t dump, void *data)
{
const char *pos, *end;
int32_t codepoint;
return dump("\"", 1, data);
}
-static int object_key_cmp(const void *key1, const void *key2)
+static int object_key_compare_keys(const void *key1, const void *key2)
{
- return strcmp(*(const char **)key1, *(const char **)key2);
+ return strcmp((*(const object_key_t **)key1)->key,
+ (*(const object_key_t **)key2)->key);
}
-static int do_dump(const json_t *json, unsigned long flags, int depth,
- dump_func dump, void *data)
+static int object_key_compare_serials(const void *key1, const void *key2)
+{
+ return (*(const object_key_t **)key1)->serial -
+ (*(const object_key_t **)key2)->serial;
+}
+
+static int do_dump(const json_t *json, size_t flags, int depth,
+ json_dump_callback_t dump, void *data)
{
int ascii = flags & JSON_ENSURE_ASCII ? 1 : 0;
char buffer[MAX_INTEGER_STR_LENGTH];
int size;
- size = snprintf(buffer, MAX_INTEGER_STR_LENGTH, "%d", json_integer_value(json));
+ size = snprintf(buffer, MAX_INTEGER_STR_LENGTH,
+ "%" JSON_INTEGER_FORMAT,
+ json_integer_value(json));
if(size >= MAX_INTEGER_STR_LENGTH)
return -1;
{
char buffer[MAX_REAL_STR_LENGTH];
int size;
+ double value = json_real_value(json);
- size = snprintf(buffer, MAX_REAL_STR_LENGTH, "%.17g",
- json_real_value(json));
- if(size >= MAX_REAL_STR_LENGTH)
+ size = jsonp_dtostr(buffer, MAX_REAL_STR_LENGTH, value);
+ if(size < 0)
return -1;
- /* Make sure there's a dot or 'e' in the output. Otherwise
- a real is converted to an integer when decoding */
- if(strchr(buffer, '.') == NULL &&
- strchr(buffer, 'e') == NULL)
- {
- if(size + 2 >= MAX_REAL_STR_LENGTH) {
- /* No space to append ".0" */
- return -1;
- }
- buffer[size] = '.';
- buffer[size + 1] = '0';
- size += 2;
- }
-
return dump(buffer, size, data);
}
/* detect circular references */
array = json_to_array(json);
if(array->visited)
- return -1;
+ goto array_error;
array->visited = 1;
n = json_array_size(json);
if(dump("[", 1, data))
- return -1;
- if(n == 0)
+ goto array_error;
+ if(n == 0) {
+ array->visited = 0;
return dump("]", 1, data);
+ }
if(dump_indent(flags, depth + 1, 0, dump, data))
- return -1;
+ goto array_error;
for(i = 0; i < n; ++i) {
if(do_dump(json_array_get(json, i), flags, depth + 1,
dump, data))
- return -1;
+ goto array_error;
if(i < n - 1)
{
if(dump(",", 1, data) ||
dump_indent(flags, depth + 1, 1, dump, data))
- return -1;
+ goto array_error;
}
else
{
if(dump_indent(flags, depth, 0, dump, data))
- return -1;
+ goto array_error;
}
}
array->visited = 0;
return dump("]", 1, data);
+
+ array_error:
+ array->visited = 0;
+ return -1;
}
case JSON_OBJECT:
/* detect circular references */
object = json_to_object(json);
if(object->visited)
- return -1;
+ goto object_error;
object->visited = 1;
iter = json_object_iter((json_t *)json);
if(dump("{", 1, data))
- return -1;
- if(!iter)
+ goto object_error;
+ if(!iter) {
+ object->visited = 0;
return dump("}", 1, data);
+ }
if(dump_indent(flags, depth + 1, 0, dump, data))
- return -1;
+ goto object_error;
- if(flags & JSON_SORT_KEYS)
+ if(flags & JSON_SORT_KEYS || flags & JSON_PRESERVE_ORDER)
{
- /* Sort keys */
-
- const char **keys;
- unsigned int size;
- unsigned int i;
+ const object_key_t **keys;
+ size_t size, i;
+ int (*cmp_func)(const void *, const void *);
size = json_object_size(json);
- keys = malloc(size * sizeof(const char *));
+ keys = jsonp_malloc(size * sizeof(object_key_t *));
if(!keys)
- return -1;
+ goto object_error;
i = 0;
while(iter)
{
- keys[i] = json_object_iter_key(iter);
+ keys[i] = jsonp_object_iter_fullkey(iter);
iter = json_object_iter_next((json_t *)json, iter);
i++;
}
assert(i == size);
- qsort(keys, size, sizeof(const char *), object_key_cmp);
+ if(flags & JSON_SORT_KEYS)
+ cmp_func = object_key_compare_keys;
+ else
+ cmp_func = object_key_compare_serials;
+
+ qsort(keys, size, sizeof(object_key_t *), cmp_func);
for(i = 0; i < size; i++)
{
const char *key;
json_t *value;
- key = keys[i];
+ key = keys[i]->key;
value = json_object_get(json, key);
assert(value);
if(dump(separator, separator_length, data) ||
do_dump(value, flags, depth + 1, dump, data))
{
- free(keys);
- return -1;
+ jsonp_free(keys);
+ goto object_error;
}
if(i < size - 1)
if(dump(",", 1, data) ||
dump_indent(flags, depth + 1, 1, dump, data))
{
- free(keys);
- return -1;
+ jsonp_free(keys);
+ goto object_error;
}
}
else
{
if(dump_indent(flags, depth, 0, dump, data))
{
- free(keys);
- return -1;
+ jsonp_free(keys);
+ goto object_error;
}
}
}
- free(keys);
+ jsonp_free(keys);
}
else
{
if(dump(separator, separator_length, data) ||
do_dump(json_object_iter_value(iter), flags, depth + 1,
dump, data))
- return -1;
+ goto object_error;
if(next)
{
if(dump(",", 1, data) ||
dump_indent(flags, depth + 1, 1, dump, data))
- return -1;
+ goto object_error;
}
else
{
if(dump_indent(flags, depth, 0, dump, data))
- return -1;
+ goto object_error;
}
iter = next;
object->visited = 0;
return dump("}", 1, data);
+
+ object_error:
+ object->visited = 0;
+ return -1;
}
default:
}
}
-
-char *json_dumps(const json_t *json, unsigned long flags)
+char *json_dumps(const json_t *json, size_t flags)
{
strbuffer_t strbuff;
char *result;
- if(!json_is_array(json) && !json_is_object(json))
- return NULL;
-
if(strbuffer_init(&strbuff))
return NULL;
- if(do_dump(json, flags, 0, dump_to_strbuffer, (void *)&strbuff)) {
- strbuffer_close(&strbuff);
- return NULL;
- }
+ if(json_dump_callback(json, dump_to_strbuffer, (void *)&strbuff, flags))
+ result = NULL;
+ else
+ result = jsonp_strdup(strbuffer_value(&strbuff));
- result = strdup(strbuffer_value(&strbuff));
strbuffer_close(&strbuff);
-
return result;
}
-int json_dumpf(const json_t *json, FILE *output, unsigned long flags)
+int json_dumpf(const json_t *json, FILE *output, size_t flags)
{
- if(!json_is_array(json) && !json_is_object(json))
- return -1;
-
- return do_dump(json, flags, 0, dump_to_file, (void *)output);
+ return json_dump_callback(json, dump_to_file, (void *)output, flags);
}
-int json_dump_file(const json_t *json, const char *path, unsigned long flags)
+int json_dump_file(const json_t *json, const char *path, size_t flags)
{
int result;
fclose(output);
return result;
}
+
+int json_dump_callback(const json_t *json, json_dump_callback_t callback, void *data, size_t flags)
+{
+ if(!(flags & JSON_ENCODE_ANY)) {
+ if(!json_is_array(json) && !json_is_object(json))
+ return -1;
+ }
+
+ return do_dump(json, flags, 0, callback, data);
+}
projects / jansson.git / blobdiff