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