System.Xml.XmlComplianceUtil.StripSpaces C# (CSharp) Méthode

        public static string StripSpaces( string value ) {
            int len = value.Length;
            if ( len <= 0 ) {
               return string.Empty;
            }

            int startPos = 0;
            StringBuilder norValue = null;

            while ( value[startPos] == 0x20 ) {
                startPos++;
                if ( startPos == len ) {
                    return " ";
                }
            }

            int i;
            for ( i = startPos; i < len; i++ ) {
                if ( value[i] == 0x20 ) {
                    int j = i + 1;
                    while ( j < len && value[j] == 0x20 ) {
                        j++;
                    }
                    if ( j == len ) {
                        if ( norValue == null ) {
                            return value.Substring( startPos, i - startPos );
                        }
                        else {
                            norValue.Append( value, startPos, i - startPos );
                            return norValue.ToString();
                        }
                   }
                   if ( j > i + 1 ) {
                        if ( norValue == null ) {
                            norValue = new StringBuilder( len );
                        }
                        norValue.Append( value, startPos, i - startPos + 1 );
                        startPos = j;
                        i = j - 1;
                    }
                }
            }
            if ( norValue == null ) {
                return ( startPos == 0 ) ? value : value.Substring( startPos, len - startPos );
            }
            else {
                if ( i > startPos ) {
                   norValue.Append( value, startPos, i - startPos );
               }
                return norValue.ToString();
            }
        }

 internal void TrimSpacesInValue()
 {
     if (ValueBuffered)
     {
         XmlComplianceUtil.StripSpaces(chars, valueStartPos, ref valueLength);
     }
     else
     {
         value = XmlComplianceUtil.StripSpaces(value);
     }
 }