public int AttributeInfoComparison(AttributeInfo x, AttributeInfo y)
{
if (x.OrderRule.Group != y.OrderRule.Group)
{
return x.OrderRule.Group.CompareTo(y.OrderRule.Group);
}
if (x.OrderRule.Priority != y.OrderRule.Priority)
{
return x.OrderRule.Priority.CompareTo(y.OrderRule.Priority);
}
return Options.OrderAttributesByName
? String.Compare(x.Name, y.Name, StringComparison.Ordinal)
: 0;
}
private void ProcessElement(XmlReader xmlReader, StringBuilder output)
{
string currentIndentString = GetIndentString(xmlReader.Depth);
string elementName = xmlReader.Name;
// Calculate how element should be indented
if (!this.ElementProcessStatusStack.Peek().IsPreservingSpace)
{
// "Run" get special treatment to try to preserve spacing. Use xml:space='preserve' to make sure!
if (elementName.Equals("Run"))
{
this.ElementProcessStatusStack.Peek().Parent.IsSignificantWhiteSpace = true;
if ((output.Length == 0) || output.IsNewLine())
{
output.Append(currentIndentString);
}
}
else
{
this.ElementProcessStatusStack.Peek().Parent.IsSignificantWhiteSpace = false;
if ((output.Length == 0) || output.IsNewLine())
{
output.Append(currentIndentString);
}
else
{
output.Append(Environment.NewLine).Append(currentIndentString);
}
}
}
// Output the element itself
output.Append('<').Append(xmlReader.Name);
bool isEmptyElement = xmlReader.IsEmptyElement;
bool hasPutEndingBracketOnNewLine = false;
var list = new List<AttributeInfo>(xmlReader.AttributeCount);
var firstLineList = new List<AttributeInfo>(xmlReader.AttributeCount);
if (xmlReader.HasAttributes)
{
while (xmlReader.MoveToNextAttribute())
{
string attributeName = xmlReader.Name;
string attributeValue = xmlReader.Value;
AttributeOrderRule orderRule = OrderRules.GetRuleFor(attributeName);
var attribute = new AttributeInfo(attributeName, attributeValue, orderRule);
list.Add(attribute);
// Maintain separate list of first line attributes.
if (this.Options.EnableAttributeReordering && this.IsFirstLineAttribute(attribute.Name))
{
firstLineList.Add(attribute);
}
// Check for xml:space as defined in http://www.w3.org/TR/2008/REC-xml-20081126/#sec-white-space
if (xmlReader.IsXmlSpaceAttribute())
{
this.ElementProcessStatusStack.Peek().IsPreservingSpace = (xmlReader.Value == "preserve");
}
}
if (this.Options.EnableAttributeReordering)
{
list.Sort(AttributeInfoComparison);
firstLineList.Sort(AttributeInfoComparison);
}
currentIndentString = this.GetIndentString(xmlReader.Depth);
var noLineBreakInAttributes = (list.Count <= this.Options.AttributesTolerance)
|| this.IsNoLineBreakElement(elementName);
var forceLineBreakInAttributes = false;
// Root element?
if (this.ElementProcessStatusStack.Count == 2)
{
switch (this.Options.RootElementLineBreakRule)
{
case LineBreakRule.Default:
break;
case LineBreakRule.Always:
noLineBreakInAttributes = false;
forceLineBreakInAttributes = true;
break;
case LineBreakRule.Never:
noLineBreakInAttributes = true;
break;
default:
throw new ArgumentOutOfRangeException();
}
}
// No need to break attributes
if (noLineBreakInAttributes)
{
foreach (var attrInfo in list)
{
output.Append(' ').Append(attrInfo.ToSingleLineString());
}
this.ElementProcessStatusStack.Peek().IsMultlineStartTag = false;
}
// Need to break attributes
else
{
IList<String> attributeLines = new List<String>();
var currentLineBuffer = new StringBuilder();
int attributeCountInCurrentLineBuffer = 0;
AttributeInfo lastAttributeInfo = null;
// Process first line attributes.
string firstLine = String.Empty;
foreach (var attrInfo in firstLineList)
{
firstLine = $"{firstLine} {attrInfo.ToSingleLineString()}";
}
if (firstLine.Length > 0)
{
attributeLines.Add(firstLine);
}
foreach (AttributeInfo attrInfo in list)
{
// Skip attributes already added to first line.
if (firstLineList.Contains(attrInfo))
{
continue;
}
// Attributes with markup extension, always put on new line
if (attrInfo.IsMarkupExtension && this.Options.FormatMarkupExtension)
{
string baseIndetationString;
if (!this.Options.KeepFirstAttributeOnSameLine)
{
baseIndetationString = this.GetIndentString(xmlReader.Depth);
}
else
{
baseIndetationString = this.GetIndentString(xmlReader.Depth - 1)
+ String.Empty.PadLeft(elementName.Length + 2, ' ');
}
string pendingAppend;
if (this.NoNewLineMarkupExtensionsList.Contains(attrInfo.MarkupExtension))
{
pendingAppend = $" {attrInfo.ToSingleLineString()}";
}
else
{
pendingAppend = attrInfo.ToMultiLineString(baseIndetationString);
}
if (currentLineBuffer.Length > 0)
{
attributeLines.Add(currentLineBuffer.ToString());
currentLineBuffer.Length = 0;
attributeCountInCurrentLineBuffer = 0;
}
attributeLines.Add(pendingAppend);
}
else
{
string pendingAppend = attrInfo.ToSingleLineString();
bool isAttributeCharLengthExceeded = (attributeCountInCurrentLineBuffer > 0)
&& (Options.MaxAttributeCharatersPerLine > 0)
&& ((currentLineBuffer.Length + pendingAppend.Length)
> Options.MaxAttributeCharatersPerLine);
bool isAttributeCountExceeded = (Options.MaxAttributesPerLine > 0)
&& ((attributeCountInCurrentLineBuffer + 1) > Options.MaxAttributesPerLine);
bool isAttributeRuleGroupChanged = Options.SeparateByGroups
&& (lastAttributeInfo != null)
&& (lastAttributeInfo.OrderRule.Group != attrInfo.OrderRule.Group);
if ((currentLineBuffer.Length > 0)
&& (forceLineBreakInAttributes
|| isAttributeCharLengthExceeded
|| isAttributeCountExceeded
|| isAttributeRuleGroupChanged))
{
attributeLines.Add(currentLineBuffer.ToString());
currentLineBuffer.Length = 0;
attributeCountInCurrentLineBuffer = 0;
}
currentLineBuffer.AppendFormat("{0} ", pendingAppend);
attributeCountInCurrentLineBuffer++;
}
lastAttributeInfo = attrInfo;
}
if (currentLineBuffer.Length > 0)
{
attributeLines.Add(currentLineBuffer.ToString());
}
for (int i = 0; i < attributeLines.Count; i++)
{
if ((i == 0) && (this.Options.KeepFirstAttributeOnSameLine || (firstLineList.Count > 0)))
{
output.Append(' ').Append(attributeLines[i].Trim());
// Align subsequent attributes with first attribute
currentIndentString = GetIndentString(xmlReader.Depth - 1)
+ String.Empty.PadLeft(elementName.Length + 2, ' ');
continue;
}
output.Append(Environment.NewLine).Append(currentIndentString).Append(attributeLines[i].Trim());
}
this.ElementProcessStatusStack.Peek().IsMultlineStartTag = true;
}
// Determine if to put ending bracket on new line
if (this.Options.PutEndingBracketOnNewLine
&& this.ElementProcessStatusStack.Peek().IsMultlineStartTag)
{
output.Append(Environment.NewLine).Append(currentIndentString);
hasPutEndingBracketOnNewLine = true;
}
}
if (isEmptyElement)
{
if (!hasPutEndingBracketOnNewLine && this.Options.SpaceBeforeClosingSlash)
{
output.Append(' ');
}
output.Append("/>");
this.ElementProcessStatusStack.Peek().IsSelfClosingElement = true;
}
else
{
output.Append(">");
}
}