private static bool startsWithKeyword(string text)
{
int p;
if (text.StartsWith("true") || text.StartsWith("null"))
{
p = 4;
}
else if (text.StartsWith("false"))
{
p = 5;
}
else
{
return(false);
}
while (p < text.Length && BaseReader.IsWhite(text[p]))
{
p++;
}
if (p == text.Length)
{
return(true);
}
var ch = text[p];
return(ch == ',' || ch == '}' || ch == ']' || ch == '#' || ch == '/' && (text.Length > p + 1 && (text[p + 1] == '/' || text[p + 1] == '*')));
}
void writeString(string value, TextWriter tw, int level, bool hasComment)
{
if (value == "")
{
tw.Write("\"\""); return;
}
char first = value[0], last = value[value.Length - 1];
bool doEscape = value.Any(c => shouldEscapeChar(c));
if (hasComment ||
BaseReader.IsWhite(first) ||
char.IsDigit(first) ||
first == '#' ||
first == '-' ||
first == '{' ||
first == '[' ||
BaseReader.IsWhite(last) ||
doEscape ||
isKeyword(value))
{
if (doEscape && !value.Any(c => shouldEscapeCharExceptLF(c)))
{
writeMLString(value, tw, level);
}
else
{
tw.Write("\"" + JsonWriter.EscapeString(value) + "\"");
}
}
else
{
tw.Write(value);
}
}
void writeString(string value, TextWriter tw, int level, bool hasComment, string separator)
{
if (value == "")
{
tw.Write(separator + "\"\""); return;
}
char left = value[0], right = value[value.Length - 1];
char left1 = value.Length > 1?value[1]:'\0', left2 = value.Length > 2?value[2]:'\0';
bool doEscape = hasComment || value.Any(c => needsQuotes(c));
JsonValue dummy;
if (doEscape ||
BaseReader.IsWhite(left) ||
left == '"' ||
left == '#' ||
left == '\'' && left1 == '\'' && left2 == '\'' ||
left == '/' && (left1 == '*' || left1 == '/') ||
left == '{' ||
left == '[' ||
BaseReader.IsWhite(right) ||
HjsonReader.TryParseNumericLiteral(value, true, out dummy) ||
startsWithKeyword(value))
{
// If the string contains no control characters, no quote characters, and no
// backslash characters, then we can safely slap some quotes around it.
// Otherwise we first check if the string can be expressed in multiline
// format or we must replace the offending characters with safe escape
// sequences.
if (!value.Any(c => needsEscape(c)))
{
tw.Write(separator + "\"" + value + "\"");
}
else if (!value.Any(c => needsEscapeML(c)) && !value.Contains("'''"))
{
writeMLString(value, tw, level, separator);
}
else
{
tw.Write(separator + "\"" + JsonWriter.EscapeString(value) + "\"");
}
}
else
{
tw.Write(separator + value);
}
}