mono/utils/json.c

   1 /**
   2  * \file
   3  * JSON writer
   4  *
   5  * Author:
   6  *   Joao Matos (joao.matos@xamarin.com)
   7  *
   8  * Copyright 2015 Xamarin Inc (http://www.xamarin.com)
   9  * Licensed under the MIT license. See LICENSE file in the project root for full license information.
  10  */
  11
  12 #include <mono/utils/json.h>
  13
  14 void mono_json_writer_init (JsonWriter* writer)
  15 {
  16         g_assert (writer && "Expected a valid JSON writer instance");
  17
  18         writer->text = g_string_new ("");
  19         writer->indent = 0;
  20 }
  21
  22 void mono_json_writer_destroy (JsonWriter* writer)
  23 {
  24         g_assert (writer && "Expected a valid JSON writer instance");
  25         g_string_free (writer->text, /*free_segment=*/TRUE);
  26 }
  27
  28 void mono_json_writer_indent_push(JsonWriter* writer)
  29 {
  30         g_assert (writer && "Expected a valid JSON writer instance");
  31         writer->indent += JSON_INDENT_VALUE;
  32 }
  33
  34 void mono_json_writer_indent_pop(JsonWriter* writer)
  35 {
  36         g_assert (writer && "Expected a valid JSON writer instance");
  37         writer->indent -= JSON_INDENT_VALUE;
  38 }
  39
  40 void mono_json_writer_indent(JsonWriter* writer)
  41 {
  42         g_assert (writer && "Expected a valid JSON writer instance");
  43
  44         int i = 0;
  45         for (i = 0; i < writer->indent; ++i)
  46                 g_string_append_c (writer->text, ' ');
  47 }
  48
  49 void mono_json_writer_vprintf(JsonWriter* writer, const gchar *format, va_list args)
  50 {
  51         g_assert (writer && "Expected a valid JSON writer instance");
  52         g_string_append_vprintf (writer->text, format, args);
  53 }
  54
  55 void mono_json_writer_printf(JsonWriter* writer, const gchar *format, ...)
  56 {
  57         g_assert (writer && "Expected a valid JSON writer instance");
  58
  59         va_list args;
  60         va_start (args, format);
  61
  62         g_string_append_vprintf (writer->text, format, args);
  63
  64         va_end (args);
  65 }
  66
  67 void mono_json_writer_array_begin(JsonWriter* writer)
  68 {
  69         g_assert (writer && "Expected a valid JSON writer instance");
  70         g_string_append_printf (writer->text, "[\n");
  71         writer->indent += JSON_INDENT_VALUE;
  72 }
  73
  74 void mono_json_writer_array_end(JsonWriter* writer)
  75 {
  76         g_assert (writer && "Expected a valid JSON writer instance");
  77         g_string_append_printf (writer->text, "]");
  78         writer->indent -= JSON_INDENT_VALUE;
  79 }
  80
  81 void mono_json_writer_object_begin(JsonWriter* writer)
  82 {
  83         g_assert (writer && "Expected a valid JSON writer instance");
  84         mono_json_writer_printf (writer, "{\n");
  85         writer->indent += JSON_INDENT_VALUE;
  86 }
  87
  88 void mono_json_writer_object_end(JsonWriter* writer)
  89 {
  90         g_assert (writer && "Expected a valid JSON writer instance");
  91         mono_json_writer_printf (writer, "}");
  92 }
  93
  94 void mono_json_writer_object_key(JsonWriter* writer, const gchar* format, ...)
  95 {
  96         g_assert (writer && "Expected a valid JSON writer instance");
  97
  98         va_list args;
  99         va_start (args, format);
 100
 101         g_string_append_printf (writer->text, "\"");
 102         mono_json_writer_vprintf (writer, format, args);
 103         g_string_append_printf (writer->text, "\" : ");
 104
 105         va_end (args);
 106 }