private string TagToYaml(YamlNode node, string defaultTag)
{
var tag = node.ShorthandTag();
if (tag == YamlNode.ShorthandTag(defaultTag))
{
return("");
}
if (tag == YamlNode.ShorthandTag(GetPropertyOrNull(node, "expectedTag")))
{
return("");
}
if (config.DoNotUseVerbatimTag)
{
if (tag.StartsWith("!"))
{
tag = tag.UriEscapeForTag();
}
else
{
tag = "!<" + tag.UriEscape() + ">";
}
}
else
{
tag = tag.UriEscape();
if (!CanBeShorthand.IsMatch(tag))
{
tag = "!<" + tag + ">";
}
}
return(tag);
}
private void ScalarToYaml(YamlScalar node, string pres, Context c)
{
var s = node.Value;
// If tag can be resolved from the content, or tag is !!str,
// no need to explicitly specify it.
var auto_tag = YamlNode.ShorthandTag(AutoTagResolver.Resolve(s));
var tag = TagToYaml(node, auto_tag);
if (tag != "" && tag != "!!str")
{
Write(tag + " ");
}
if (IsValidPlainText(s, c) && !(node.ShorthandTag() == "!!str" && auto_tag != null && !node.Properties.ContainsKey("plainText")))
{
// one line plain style
Write(s);
if (c != Context.NoBreak)
{
WriteLine();
}
}
else
{
if (ForbiddenChars.IsMatch(s) || OneLine.IsMatch(s) ||
(config.ExplicitlyPreserveLineBreaks &&
GetPropertyOrNull(node, "Don'tCareLineBreaks") == null))
{
// double quoted
Write(DoubleQuotedString.Quote(s, pres, c));
if (c != Context.NoBreak)
{
WriteLine();
}
}
else
{
// Literal style
if (s[s.Length - 1] == '\n' || s[s.Length - 1] == '\r')
{
WriteLine("|+2");
}
else
{
WriteLine("|-2");
s += "\r\n"; // guard
}
var press = pres + " ";
for (int p = 0; p < s.Length;)
{
var m = UntilBreak.Match(s, p); // does not fail because of the guard
Write(pres + s.Substring(p, m.Length));
p += m.Length;
}
}
}
}
