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152 lines
6.3 KiB
152 lines
6.3 KiB
/*
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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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void doit(char *text)
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{
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char *out;cJSON *json;
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json=cJSON_Parse(text);
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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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// Read a file, parse, render back, etc.
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void dofile(char *filename)
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{
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FILE *f=fopen(filename,"rb");fseek(f,0,SEEK_END);long len=ftell(f);fseek(f,0,SEEK_SET);
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char *data=malloc(len+1);fread(data,1,len,f);fclose(f);
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doit(data);
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free(data);
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}
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// Used by some code below as an example datatype.
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struct record {const char *precision;double lat,lon;const char *address,*city,*state,*zip,*country; };
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// Create a bunch of objects as demonstration.
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void create_objects()
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{
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cJSON *root,*fmt,*img,*thm,*fld;char *out;int i; // declare a few.
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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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out=cJSON_Print(root); cJSON_Delete(root); printf("%s\n",out); free(out); // Print to text, Delete the cJSON, print it, release the string.
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// Our "days of the week" array:
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const char *strings[7]={"Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"};
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root=cJSON_CreateStringArray(strings,7);
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out=cJSON_Print(root); cJSON_Delete(root); printf("%s\n",out); free(out);
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// Our matrix:
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int numbers[3][3]={{0,-1,0},{1,0,0},{0,0,1}};
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root=cJSON_CreateArray();
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for (i=0;i<3;i++) cJSON_AddItemToArray(root,cJSON_CreateIntArray(numbers[i],3));
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// cJSON_ReplaceItemInArray(root,1,cJSON_CreateString("Replacement"));
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out=cJSON_Print(root); cJSON_Delete(root); printf("%s\n",out); free(out);
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// Our "gallery" item:
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int ids[4]={116,943,234,38793};
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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); cJSON_Delete(root); printf("%s\n",out); free(out);
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// Our array of "records":
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struct record fields[2]={
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{"zip",37.7668,-1.223959e+2,"","SAN FRANCISCO","CA","94107","US"},
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{"zip",37.371991,-1.22026e+2,"","SUNNYVALE","CA","94085","US"}};
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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); cJSON_Delete(root); printf("%s\n",out); free(out);
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}
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int main (int argc, const char * argv[]) {
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// a bunch of json:
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char text1[]="{\n\"name\": \"Jack (\\\"Bee\\\") Nimble\", \n\"format\": {\"type\": \"rect\", \n\"width\": 1920, \n\"height\": 1080, \n\"interlace\": false,\"frame rate\": 24\n}\n}";
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char text2[]="[\"Sunday\", \"Monday\", \"Tuesday\", \"Wednesday\", \"Thursday\", \"Friday\", \"Saturday\"]";
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char text3[]="[\n [0, -1, 0],\n [1, 0, 0],\n [0, 0, 1]\n ]\n";
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char text4[]="{\n \"Image\": {\n \"Width\": 800,\n \"Height\": 600,\n \"Title\": \"View from 15th Floor\",\n \"Thumbnail\": {\n \"Url\": \"http://www.example.com/image/481989943\",\n \"Height\": 125,\n \"Width\": \"100\"\n },\n \"IDs\": [116, 943, 234, 38793]\n }\n }";
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char text5[]="[\n {\n \"precision\": \"zip\",\n \"Latitude\": 37.7668,\n \"Longitude\": -122.3959,\n \"Address\": \"\",\n \"City\": \"SAN FRANCISCO\",\n \"State\": \"CA\",\n \"Zip\": \"94107\",\n \"Country\": \"US\"\n },\n {\n \"precision\": \"zip\",\n \"Latitude\": 37.371991,\n \"Longitude\": -122.026020,\n \"Address\": \"\",\n \"City\": \"SUNNYVALE\",\n \"State\": \"CA\",\n \"Zip\": \"94085\",\n \"Country\": \"US\"\n }\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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// 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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// 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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