public static void ExtractQuoteString(LexerCursor cursor)
{
var closed = false;
while (cursor.TryMatch("QUOTE:START", "\""))
{
cursor.PassThrough("ESCAPE", @"\\.");
if (cursor.TryMatch("QUOTE:END", @""""))
{
closed = true;
break;
}
cursor.PassThrough("TEXT_RUN", @"[^\\\""]+");
// LOOP EXIT
if (cursor.EOF)
{
break;
}
}
if (closed == false)
{
cursor.FakeMatch("QUOTE:END", @"""");
}
}
public static LexerCursor ParseQuery(string input)
{
var cursor = new LexerCursor {
Input = input,
MaxStack = 256
};
var lastPosition = -1;
while (cursor.Peek("$", @".", false))
{
// LOOP EXIT
if (cursor.EOF)
{
break;
}
if (ExtractContent(cursor))
{
continue;
}
// ignore closing parentheses if not in the context of group
cursor.Ignore(@"\)");
var closuresRequired = 0;
while (!cursor.EOF)
{
lastPosition = GobbleUnsupported(lastPosition, cursor);
if (!cursor.TryPush(KeywordParenthesesOpen, @"\(", ref closuresRequired))
{
break;
}
if (ExtractContent(cursor))
{
continue;
}
var exitPop = cursor.TryPop(KeywordParenthesesClose, @"\)", ref closuresRequired);
if (exitPop)
{
break;
}
}
while (closuresRequired > 0)
{
closuresRequired--;
cursor.FakeMatch(KeywordParenthesesClose, @")", pop: true);
}
}
return(cursor);
}
public static void ExtractQuoteString(LexerCursor cursor)
{
bool?closed = null;
while (!cursor.EOF)
{
if (cursor.Peek(null, "\""))
{
if (null == closed)
{
closed = false;
cursor.TryMatch(KeywordQuoteContent, "\"");
}
else if (cursor.TryMatch(KeywordQuoteContent, @"([""](\~\d{1,4}(\z|(?=\s)))?)"))
{
closed = true;
break;
}
}
if (closed == null)
{
break;
}
if (cursor.TryMatch(KeywordQuoteContent, @"\\[\""]"))
{
continue;
}
// tag unexpected backslashes to be ignored
if (cursor.TryMatch(null, @"(\\$|\\.)"))
{
continue;
}
if (cursor.TryMatch(KeywordQuoteContent, @"[^\\\""]+"))
{
continue;
}
// LOOP EXIT
if (cursor.EOF)
{
break;
}
}
if (closed == false)
{
cursor.FakeMatch(KeywordQuoteContent, @"""", pop: true);
}
}