/// <summary>
/// Try produce indented string for command line.
/// </summary>
/// <param name="text">command line</param>
/// <param name="itw">indenting text writer</param>
/// <returns>true if we was able to produce indented string without any problem</returns>
private static bool TryProduceIndentString(string text, IndentedTextWriter itw)
{
string[] tokens;
if (!CmdParser.LexString(text, out tokens))
{
return(false);
}
for (var i = 0; i < tokens.Length;)
{
//We in last token, or next token don't equal to '='.
if (i + 1 == tokens.Length || tokens[i + 1] != "=")
{
itw.WriteLine(tokens[i++]);
}
else
{
itw.Write(tokens[i++]);
itw.Write(tokens[i++]);
// We have something like "name =" which is invalid.
if (i >= tokens.Length)
{
return(false);
}
//We have something like "name = value {options}".
if (i + 1 < tokens.Length && tokens[i + 1].StartsWith("{") && tokens[i + 1].EndsWith("}"))
{
itw.Write(tokens[i++]);
itw.WriteLine("{");
using (itw.Nest())
{
var str = CmdLexer.UnquoteValue(tokens[i++]);
// REVIEW: Probably we shouldn't give up if we have problem within one of the token
//and we need return partially indented string.
bool success = TryProduceIndentString(str, itw);
if (!success)
{
return(false);
}
}
itw.WriteLine("}");
}
//We have something like "name = value".
else
{
itw.WriteLine(tokens[i++]);
}
}
}
return(true);
}
private static void ParseCore(string str, out string kind, out string args)
{
kind = args = null;
if (string.IsNullOrWhiteSpace(str))
{
return;
}
str = str.Trim();
int ich = str.IndexOf('{');
if (ich < 0)
{
kind = str;
return;
}
if (ich == 0 || str[str.Length - 1] != '}')
{
throw Contracts.Except("Invalid SubComponent string: mismatched braces, or empty component name.");
}
kind = str.Substring(0, ich);
args = CmdLexer.UnquoteValue(str.Substring(ich));
}