mirror of
https://github.com/DaveGamble/cJSON.git
synced 2024-12-31 01:13:04 +08:00
332 lines
9.2 KiB
C
332 lines
9.2 KiB
C
/*
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Copyright (c) 2009 Dave Gamble
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include "cJSON.h"
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/* Parse text to JSON, then render back to text, and print! */
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static void doit(char *text)
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{
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char *out = NULL;
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cJSON *json = NULL;
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json = cJSON_Parse(text);
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if (!json)
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{
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printf("Error before: [%s]\n", cJSON_GetErrorPtr());
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}
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else
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{
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out = cJSON_Print(json);
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cJSON_Delete(json);
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printf("%s\n", out);
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free(out);
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}
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}
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#if 0
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/* Read a file, parse, render back, etc. */
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static void dofile(char *filename)
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{
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FILE *f = NULL;
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long len = 0;
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char *data = NULL;
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/* open in read binary mode */
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f = fopen(filename,"rb");
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/* get the length */
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fseek(f, 0, SEEK_END);
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len = ftell(f);
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fseek(f, 0, SEEK_SET);
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data = (char*)malloc(len + 1);
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fread(data, 1, len, f);
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data[len] = '\0';
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fclose(f);
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doit(data);
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free(data);
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}
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#endif
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/* Used by some code below as an example datatype. */
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struct record
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{
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const char *precision;
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double lat;
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double lon;
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const char *address;
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const char *city;
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const char *state;
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const char *zip;
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const char *country;
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};
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/* Create a bunch of objects as demonstration. */
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static void create_objects(void)
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{
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/* declare a few. */
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cJSON *root = NULL;
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cJSON *fmt = NULL;
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cJSON *img = NULL;
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cJSON *thm = NULL;
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cJSON *fld = NULL;
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char *out = NULL;
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int i = 0;
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/* Our "days of the week" array: */
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const char *strings[7] =
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{
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"Sunday",
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"Monday",
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"Tuesday",
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"Wednesday",
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"Thursday",
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"Friday",
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"Saturday"
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};
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/* Our matrix: */
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int numbers[3][3] =
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{
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{0, -1, 0},
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{1, 0, 0},
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{0 ,0, 1}
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};
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/* Our "gallery" item: */
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int ids[4] = { 116, 943, 234, 38793 };
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/* Our array of "records": */
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struct record fields[2] =
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{
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{
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"zip",
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37.7668,
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-1.223959e+2,
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"",
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"SAN FRANCISCO",
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"CA",
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"94107",
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"US"
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},
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{
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"zip",
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37.371991,
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-1.22026e+2,
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"",
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"SUNNYVALE",
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"CA",
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"94085",
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"US"
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}
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};
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volatile double zero = 0.0;
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/* Here we construct some JSON standards, from the JSON site. */
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/* Our "Video" datatype: */
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root = cJSON_CreateObject();
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cJSON_AddItemToObject(root, "name", cJSON_CreateString("Jack (\"Bee\") Nimble"));
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cJSON_AddItemToObject(root, "format", fmt = cJSON_CreateObject());
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cJSON_AddStringToObject(fmt, "type", "rect");
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cJSON_AddNumberToObject(fmt, "width", 1920);
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cJSON_AddNumberToObject(fmt, "height", 1080);
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cJSON_AddFalseToObject (fmt, "interlace");
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cJSON_AddNumberToObject(fmt, "frame rate", 24);
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/* Print to text */
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out = cJSON_Print(root);
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/* Delete the cJSON */
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cJSON_Delete(root);
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/* print it */
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printf("%s\n",out);
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/* release the string */
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free(out);
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/* Our "days of the week" array: */
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root = cJSON_CreateStringArray(strings, 7);
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out = cJSON_Print(root);
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cJSON_Delete(root);
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printf("%s\n", out);
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free(out);
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/* Our matrix: */
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root = cJSON_CreateArray();
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for (i = 0; i < 3; i++)
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{
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cJSON_AddItemToArray(root, cJSON_CreateIntArray(numbers[i], 3));
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}
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/* cJSON_ReplaceItemInArray(root, 1, cJSON_CreateString("Replacement")); */
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out = cJSON_Print(root);
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cJSON_Delete(root);
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printf("%s\n", out);
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free(out);
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/* Our "gallery" item: */
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root = cJSON_CreateObject();
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cJSON_AddItemToObject(root, "Image", img = cJSON_CreateObject());
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cJSON_AddNumberToObject(img, "Width", 800);
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cJSON_AddNumberToObject(img, "Height", 600);
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cJSON_AddStringToObject(img, "Title", "View from 15th Floor");
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cJSON_AddItemToObject(img, "Thumbnail", thm = cJSON_CreateObject());
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cJSON_AddStringToObject(thm, "Url", "http:/*www.example.com/image/481989943");
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cJSON_AddNumberToObject(thm, "Height", 125);
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cJSON_AddStringToObject(thm, "Width", "100");
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cJSON_AddItemToObject(img, "IDs", cJSON_CreateIntArray(ids, 4));
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out = cJSON_Print(root);
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cJSON_Delete(root);
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printf("%s\n", out);
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free(out);
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/* Our array of "records": */
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root = cJSON_CreateArray();
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for (i = 0; i < 2; i++)
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{
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cJSON_AddItemToArray(root, fld = cJSON_CreateObject());
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cJSON_AddStringToObject(fld, "precision", fields[i].precision);
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cJSON_AddNumberToObject(fld, "Latitude", fields[i].lat);
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cJSON_AddNumberToObject(fld, "Longitude", fields[i].lon);
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cJSON_AddStringToObject(fld, "Address", fields[i].address);
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cJSON_AddStringToObject(fld, "City", fields[i].city);
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cJSON_AddStringToObject(fld, "State", fields[i].state);
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cJSON_AddStringToObject(fld, "Zip", fields[i].zip);
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cJSON_AddStringToObject(fld, "Country", fields[i].country);
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}
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/* cJSON_ReplaceItemInObject(cJSON_GetArrayItem(root, 1), "City", cJSON_CreateIntArray(ids, 4)); */
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out = cJSON_Print(root);
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cJSON_Delete(root);
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printf("%s\n", out);
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free(out);
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root = cJSON_CreateObject();
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cJSON_AddNumberToObject(root, "number", 1.0 / zero);
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out = cJSON_Print(root);
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cJSON_Delete(root);
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printf("%s\n", out);
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free(out);
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}
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int main(void)
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{
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/* a bunch of json: */
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char text1[] =
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"{\n"
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"\"name\": \"Jack (\\\"Bee\\\") Nimble\", \n"
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"\"format\": {\"type\": \"rect\", \n"
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"\"width\": 1920, \n"
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"\"height\": 1080, \n"
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"\"interlace\": false,\"frame rate\": 24\n"
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"}\n"
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"}";
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char text2[] = "[\"Sunday\", \"Monday\", \"Tuesday\", \"Wednesday\", \"Thursday\", \"Friday\", \"Saturday\"]";
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char text3[] =
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"[\n"
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" [0, -1, 0],\n"
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" [1, 0, 0],\n"
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" [0, 0, 1]\n"
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"\t]\n";
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char text4[] =
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"{\n"
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"\t\t\"Image\": {\n"
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"\t\t\t\"Width\": 800,\n"
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"\t\t\t\"Height\": 600,\n"
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"\t\t\t\"Title\": \"View from 15th Floor\",\n"
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"\t\t\t\"Thumbnail\": {\n"
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"\t\t\t\t\"Url\": \"http:/*www.example.com/image/481989943\",\n"
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"\t\t\t\t\"Height\": 125,\n"
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"\t\t\t\t\"Width\": \"100\"\n"
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"\t\t\t},\n"
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"\t\t\t\"IDs\": [116, 943, 234, 38793]\n"
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"\t\t}\n"
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"\t}";
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char text5[] =
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"[\n"
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"\t {\n"
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"\t \"precision\": \"zip\",\n"
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"\t \"Latitude\": 37.7668,\n"
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"\t \"Longitude\": -122.3959,\n"
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"\t \"Address\": \"\",\n"
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"\t \"City\": \"SAN FRANCISCO\",\n"
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"\t \"State\": \"CA\",\n"
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"\t \"Zip\": \"94107\",\n"
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"\t \"Country\": \"US\"\n"
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"\t },\n"
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"\t {\n"
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"\t \"precision\": \"zip\",\n"
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"\t \"Latitude\": 37.371991,\n"
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"\t \"Longitude\": -122.026020,\n"
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"\t \"Address\": \"\",\n"
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"\t \"City\": \"SUNNYVALE\",\n"
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"\t \"State\": \"CA\",\n"
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"\t \"Zip\": \"94085\",\n"
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"\t \"Country\": \"US\"\n"
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"\t }\n"
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"\t ]";
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char text6[] =
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"<!DOCTYPE html>"
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"<html>\n"
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"<head>\n"
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" <meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">\n"
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" <style type=\"text/css\">\n"
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" html, body, iframe { margin: 0; padding: 0; height: 100%; }\n"
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" iframe { display: block; width: 100%; border: none; }\n"
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" </style>\n"
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"<title>Application Error</title>\n"
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"</head>\n"
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"<body>\n"
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" <iframe src=\"//s3.amazonaws.com/heroku_pages/error.html\">\n"
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" <p>Application Error</p>\n"
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" </iframe>\n"
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"</body>\n"
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"</html>\n";
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/* Process each json textblock by parsing, then rebuilding: */
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doit(text1);
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doit(text2);
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doit(text3);
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doit(text4);
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doit(text5);
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doit(text6);
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/* Parse standard testfiles: */
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/* dofile("../../tests/test1"); */
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/* dofile("../../tests/test2"); */
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/* dofile("../../tests/test3"); */
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/* dofile("../../tests/test4"); */
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/* dofile("../../tests/test5"); */
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/* dofile("../../tests/test6"); */
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/* Now some samplecode for building objects concisely: */
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create_objects();
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return 0;
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}
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