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104 lines
3.7 KiB
C
104 lines
3.7 KiB
C
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/*
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<https://github.com/rafagafe/tiny-json>
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Licensed under the MIT License <http://opensource.org/licenses/MIT>.
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SPDX-License-Identifier: MIT
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Copyright (c) 2016-2018 Rafa Garcia <rafagarcia77@gmail.com>.
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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 all
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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 THE
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SOFTWARE.
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*/
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/*
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* In this example the JSON library is used to analyze an object that some
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* properties are expected.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "tiny-json.h"
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/* Parser a json string. */
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int main( void ) {
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char str[] = "{\n"
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"\t\"firstName\": \"Bidhan\",\n"
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"\t\"lastName\": \"Chatterjee\",\n"
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"\t\"age\": 40,\n"
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"\t\"address\": {\n"
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"\t\t\"streetAddress\": \"144 J B Hazra Road\",\n"
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"\t\t\"city\": \"Burdwan\",\n"
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"\t\t\"state\": \"Paschimbanga\",\n"
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"\t\t\"postalCode\": \"713102\"\n"
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"\t},\n"
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"\t\"phoneList\": [\n"
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"\t\t{ \"type\": \"personal\", \"number\": \"09832209761\" },\n"
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"\t\t{ \"type\": \"fax\", \"number\": \"91-342-2567692\" }\n"
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"\t]\n"
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"}\n";
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puts( str );
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json_t mem[32];
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json_t const* json = json_create( str, mem, sizeof mem / sizeof *mem );
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if ( !json ) {
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puts("Error json create.");
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return EXIT_FAILURE;
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}
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json_t const* firstName = json_getProperty( json, "firstName" );
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if ( !firstName || JSON_TEXT != json_getType( firstName ) ) {
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puts("Error, the first name property is not found.");
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return EXIT_FAILURE;
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}
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char const* firstNameVal = json_getValue( firstName );
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printf( "Fist Name: %s.\n", firstNameVal );
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char const* lastName = json_getPropertyValue( json, "lastName" );
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if ( !lastName ) {
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puts("Error, the last name property is not found.");
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return EXIT_FAILURE;
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}
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printf( "Last Name: %s.\n", lastName );
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json_t const* age = json_getProperty( json, "age" );
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if ( !age || JSON_INTEGER != json_getType( age ) ) {
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puts("Error, the age property is not found.");
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return EXIT_FAILURE;
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}
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int const ageVal = (int)json_getInteger( age );
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printf( "Age: %d.\n", ageVal );
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json_t const* phoneList = json_getProperty( json, "phoneList" );
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if ( !phoneList || JSON_ARRAY != json_getType( phoneList ) ) {
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puts("Error, the phone list property is not found.");
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return EXIT_FAILURE;
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}
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json_t const* phone;
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for( phone = json_getChild( phoneList ); phone != 0; phone = json_getSibling( phone ) ) {
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if ( JSON_OBJ == json_getType( phone ) ) {
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char const* phoneNumber = json_getPropertyValue( phone, "number" );
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if ( phoneNumber ) printf( "Number: %s.\n", phoneNumber );
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}
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}
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return EXIT_SUCCESS;
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}
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