New syntax highlighter not complete.

- Supports comments
- more efficient as it scans the text block instead of repeatedly searching throught the whole block
- type matching based on catalog (but need to add aliases manually)
- added many keywords

todo:
- heap corruption bug
- symbol stops at special char like parenthese or operator or something similar.

sqlhighlighter.cpp

@@ -74,64 +74,6 @@ SqlHighlighter::SqlHighlighter(QTextDocument *parent)
 //	}
 }
 
-namespace {
-
-	// Advances ofs to first whitespace or end of string, returns false at end of string
-	void skipWhiteSpace(const QString &in, int &ofs)
-	{
-		const int l = in.length();
-		while (ofs < l && in.at(ofs).isSpace())	++ofs;
-	}
-
-	enum class BasicTokenType {
-		None,
-		End, // End of input
-		Symbol, // can be many things, keyword, object name, operator, ..
-		Comment,
-		QuotedString,
-		DollarQuotedString,
-		QuotedIdentifier
-	};
-
-	/**
-	 * @brief NextBasicToken
-	 * @param in
-	 * @param ofs
-	 * @param start
-	 * @param length
-	 * @return false when input seems invalid, it will return what it did recognize but something wasn't right, parser should try to recover
-	 */
-	bool NextBasicToken(const QString &in, int ofs, int &start, int &length, BasicTokenType &tokentype)
-	{
-		// Basically chops based on white space
-		// it does also recognize comments and quoted strings/identifiers
-		bool result = false;
-
-		skipWhiteSpace(in, ofs);
-		const int len = in.length();
-		while (ofs < len) {
-			if (ofs+1 < len && in.at(ofs) == L'-' && in.at(ofs+1) == L'-') {
-				// Start of comment, end of line is end of comment
-
-			}
-			else if (in.at(ofs) == L'\'') {
-				// Start of quoted string
-
-			}
-			else if (in.at(ofs) == L'"') {
-				// Start of quoted identifier
-
-			}
-			else if (in.at(ofs) == L'/' && ofs+1 < len && in.at(ofs+1) == L'*') {
-				// Start of C style comment, scan for end
-			}
-
-		}
-		return result;
-	}
-
-}
-
 void SqlHighlighter::highlightBlock(const QString &text)
 {
 	foreach (const HighlightingRule &rule, highlightingRules) {
@@ -146,3 +88,5 @@ void SqlHighlighter::highlightBlock(const QString &text)
 	setCurrentBlockState(0);
 }
 
+
+