FindLeadingAnchor()

static int System.Text.RegularExpressions.RegexPrefixAnalyzer.FindLeadingAnchor ( RegexTree tree )

inlinestatic

Definition at line 225 of file RegexPrefixAnalyzer.cs.

    {
        RegexNode regexNode = tree.Root;
        RegexNode regexNode2 = null;
        int num = 0;
        while (true)
        {
            switch (regexNode.Type)
            {
            case 14:
                return 2;
            case 15:
                return 8;
            case 16:
                return 64;
            case 41:
                return 128;
            case 18:
                return 1;
            case 19:
                return 4;
            case 20:
                return 16;
            case 21:
                return 32;
            case 25:
                if (regexNode.ChildCount() > 0)
                {
                    regexNode2 = regexNode;
                    num = 0;
                }
                break;
            case 28:
            case 32:
                regexNode = regexNode.Child(0);
                regexNode2 = null;
                continue;
            default:
                return 0;
            case 23:
            case 30:
            case 31:
                break;
            }
            if (regexNode2 == null || num >= regexNode2.ChildCount())
            {
                break;
            }
            regexNode = regexNode2.Child(num++);
        }
        return 0;
    }

Referenced by System.Text.RegularExpressions.RegexWriter.RegexCodeFromRegexTree().