mono/utils/json.c

   1 /*
   2  * json.c: JSON writer
   3  *
   4  * Author:
   5  *   Joao Matos (joao.matos@xamarin.com)
   6  *
   7  * Copyright 2015 Xamarin Inc (http://www.xamarin.com)
   8  * Licensed under the MIT license. See LICENSE file in the project root for full license information.
   9  */
  10
  11 #include <mono/utils/json.h>
  12
  13 void mono_json_writer_init (JsonWriter* writer)
  14 {
  15         g_assert (writer && "Expected a valid JSON writer instance");
  16
  17         writer->text = g_string_new ("");
  18         writer->indent = 0;
  19 }
  20
  21 void mono_json_writer_destroy (JsonWriter* writer)
  22 {
  23         g_assert (writer && "Expected a valid JSON writer instance");
  24         g_string_free (writer->text, /*free_segment=*/TRUE);
  25 }
  26
  27 void mono_json_writer_indent_push(JsonWriter* writer)
  28 {
  29         g_assert (writer && "Expected a valid JSON writer instance");
  30         writer->indent += JSON_INDENT_VALUE;
  31 }
  32
  33 void mono_json_writer_indent_pop(JsonWriter* writer)
  34 {
  35         g_assert (writer && "Expected a valid JSON writer instance");
  36         writer->indent -= JSON_INDENT_VALUE;
  37 }
  38
  39 void mono_json_writer_indent(JsonWriter* writer)
  40 {
  41         g_assert (writer && "Expected a valid JSON writer instance");
  42
  43         int i = 0;
  44         for (i = 0; i < writer->indent; ++i)
  45                 g_string_append_c (writer->text, ' ');
  46 }
  47
  48 void mono_json_writer_vprintf(JsonWriter* writer, const gchar *format, va_list args)
  49 {
  50         g_assert (writer && "Expected a valid JSON writer instance");
  51         g_string_append_vprintf (writer->text, format, args);
  52 }
  53
  54 void mono_json_writer_printf(JsonWriter* writer, const gchar *format, ...)
  55 {
  56         g_assert (writer && "Expected a valid JSON writer instance");
  57
  58         va_list args;
  59         va_start (args, format);
  60
  61         g_string_append_vprintf (writer->text, format, args);
  62
  63         va_end (args);
  64 }
  65
  66 void mono_json_writer_array_begin(JsonWriter* writer)
  67 {
  68         g_assert (writer && "Expected a valid JSON writer instance");
  69         g_string_append_printf (writer->text, "[\n");
  70         writer->indent += JSON_INDENT_VALUE;
  71 }
  72
  73 void mono_json_writer_array_end(JsonWriter* writer)
  74 {
  75         g_assert (writer && "Expected a valid JSON writer instance");
  76         g_string_append_printf (writer->text, "]");
  77         writer->indent -= JSON_INDENT_VALUE;
  78 }
  79
  80 void mono_json_writer_object_begin(JsonWriter* writer)
  81 {
  82         g_assert (writer && "Expected a valid JSON writer instance");
  83         mono_json_writer_printf (writer, "{\n");
  84         writer->indent += JSON_INDENT_VALUE;
  85 }
  86
  87 void mono_json_writer_object_end(JsonWriter* writer)
  88 {
  89         g_assert (writer && "Expected a valid JSON writer instance");
  90         mono_json_writer_printf (writer, "}");
  91 }
  92
  93 void mono_json_writer_object_key(JsonWriter* writer, const gchar* format, ...)
  94 {
  95         g_assert (writer && "Expected a valid JSON writer instance");
  96
  97         va_list args;
  98         va_start (args, format);
  99
 100         g_string_append_printf (writer->text, "\"");
 101         mono_json_writer_vprintf (writer, format, args);
 102         g_string_append_printf (writer->text, "\" : ");
 103
 104         va_end (args);
 105 }