PrefixQName.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / XmlUtils / System / Xml / Xsl / XsltOld / PrefixQName.cs / 1305376 / PrefixQName.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// [....] 
//-----------------------------------------------------------------------------
 
namespace System.Xml.Xsl.XsltOld { 
    using Res = System.Xml.Utils.Res;
    using System; 
    using System.Diagnostics;
    using System.Xml;

    internal sealed class PrefixQName { 
        public string Prefix;
        public string Name; 
        public string Namespace; 

        internal void ClearPrefix() { 
            Prefix = string.Empty;
        }

        internal void SetQName(string qname) { 
            PrefixQName.ParseQualifiedName(qname, out Prefix, out Name);
        } 
 
        //
        // Parsing qualified names 
        //

        public static void ParseQualifiedName(string qname, out string prefix, out string local) {
            Debug.Assert(qname != null); 
            prefix = string.Empty;
            local = string.Empty; 
 
            // parse first NCName (prefix or local name)
            int position = ValidateNames.ParseNCName(qname); 
            if (position == 0) {
                throw XsltException.Create(Res.Xslt_InvalidQName, qname);
            }
            local = qname.Substring(0, position); 

            // not at the end -> parse ':' and the second NCName (local name) 
            if (position < qname.Length) { 
                if (qname[position] == ':') {
                    int startLocalNamePos = ++position; 
                    prefix = local;
                    int len = ValidateNames.ParseNCName(qname, position);
                    position += len;
                    if (len == 0) { 
                        throw XsltException.Create(Res.Xslt_InvalidQName, qname);
                    } 
                    local = qname.Substring(startLocalNamePos, len); 
                }
 
                // still not at the end -> error
                if (position < qname.Length) {
                    throw XsltException.Create(Res.Xslt_InvalidQName, qname);
                } 
            }
        } 
 
        public static bool ValidatePrefix(string prefix) {
            if (prefix.Length == 0) { 
                return false;
            }
            int endPos = ValidateNames.ParseNCName(prefix, 0);
            return endPos == prefix.Length; 
        }
    } 
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

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