encode static method

String encode(ArbFile arb)

Implementation

static String encode(ArbFile arb) {
  final buf = StringBuffer();
  buf.writeln('{');

  // @@locale always first.
  buf.write('  "@@locale": ');
  buf.write(jsonEncode(arb.locale));

  // Other file-level @@-metadata in sorted order — preserve, do not
  // silently strip user data (e.g. Flutter gen_l10n's @@last_modified).
  final extraFileKeys = arb.fileMetadata.keys.toList()..sort();
  for (final k in extraFileKeys) {
    buf.writeln(',');
    buf.write('  ');
    buf.write(jsonEncode(k));
    buf.write(': ');
    buf.write(jsonEncode(arb.fileMetadata[k]));
  }

  final sorted = [...arb.entries]..sort((a, b) => a.key.compareTo(b.key));

  if (sorted.isEmpty) {
    buf.writeln();
    buf.writeln('}');
    return buf.toString();
  }

  buf.writeln(',');

  for (var i = 0; i < sorted.length; i++) {
    final entry = sorted[i];
    final isLast = i == sorted.length - 1;

    // Blank line before each group.
    buf.writeln();

    // Key/value line.
    buf.write('  ');
    buf.write(jsonEncode(entry.key));
    buf.write(': ');
    buf.write(jsonEncode(entry.value));

    if (entry.metadata != null) {
      buf.writeln(',');
      // @key metadata block.
      buf.write('  ');
      buf.write(jsonEncode('@${entry.key}'));
      buf.write(': ');
      _writeMetadata(buf, entry.metadata!);
    }

    if (isLast) {
      buf.writeln();
    } else {
      buf.writeln(',');
    }
  }

  buf.writeln('}');
  return buf.toString();
}