private void ProcessElement(XmlReader xmlReader, StringBuilder output)
{
string currentIndentString = GetIndentString(xmlReader.Depth);
string elementName = xmlReader.Name;
// Calculate how element should be indented
if (!_elementProcessStatusStack.Peek().IsPreservingSpace)
{
// "Run" get special treatment to try to preserve spacing. Use xml:space='preserve' to make sure!
if (elementName.Equals("Run"))
{
_elementProcessStatusStack.Peek().Parent.IsSignificantWhiteSpace = true;
if (output.Length == 0 || output.IsNewLine())
{
output.Append(currentIndentString);
}
}
else
{
_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);
if (xmlReader.HasAttributes)
{
while (xmlReader.MoveToNextAttribute())
{
string attributeName = xmlReader.Name;
string attributeValue = xmlReader.Value;
AttributeOrderRule orderRule = OrderRules.GetRuleFor(attributeName);
list.Add(new AttributeInfo(attributeName, attributeValue, orderRule));
// Check for xml:space as defined in http://www.w3.org/TR/2008/REC-xml-20081126/#sec-white-space
if (xmlReader.IsXmlSpaceAttribute())
{
_elementProcessStatusStack.Peek().IsPreservingSpace = (xmlReader.Value == "preserve");
}
}
if (Options.EnableAttributeReordering)
{
list.Sort(AttributeInfoComparison);
}
currentIndentString = GetIndentString(xmlReader.Depth);
var noLineBreakInAttributes = (list.Count <= Options.AttributesTolerance) || IsNoLineBreakElement(elementName);
var forceLineBreakInAttributes = false;
// Root element?
if (_elementProcessStatusStack.Count == 2)
{
switch (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());
}
_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;
foreach (AttributeInfo attrInfo in list)
{
// Attributes with markup extension, always put on new line
if (attrInfo.IsMarkupExtension && Options.FormatMarkupExtension)
{
string baseIndetationString;
if (!Options.KeepFirstAttributeOnSameLine)
{
baseIndetationString = GetIndentString(xmlReader.Depth);
}
else
{
baseIndetationString = GetIndentString(xmlReader.Depth - 1) +
string.Empty.PadLeft(elementName.Length + 2, ' ');
}
string pendingAppend;
if (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.PutAttributeOrderRuleGroupsOnSeparateLines &&
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 (0 == i && Options.KeepFirstAttributeOnSameLine)
{
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());
}
_elementProcessStatusStack.Peek().IsMultlineStartTag = true;
}
// Determine if to put ending bracket on new line
if (Options.PutEndingBracketOnNewLine &&
_elementProcessStatusStack.Peek().IsMultlineStartTag)
{
output
.Append(Environment.NewLine)
.Append(currentIndentString);
hasPutEndingBracketOnNewLine = true;
}
}
if (isEmptyElement)
{
if (hasPutEndingBracketOnNewLine == false && Options.SpaceBeforeClosingSlash)
{
output.Append(' ');
}
output.Append("/>");
_elementProcessStatusStack.Peek().IsSelfClosingElement = true;
}
else
{
output.Append(">");
}
}
private void ProcessElement(XmlReader xmlReader, StringBuilder output)
{
string currentIndentString = GetIndentString(xmlReader.Depth);
string elementName = xmlReader.Name;
if ("Run".Equals(elementName))
{
if (output.IsNewLine())
{
// Shall not add extra whitespaces (including linefeeds) before <Run/>,
// because it will affect the rendering of <TextBlock><Run/><Run/></TextBlock>
output
.Append(currentIndentString)
.Append('<')
.Append(xmlReader.Name);
}
else
{
output.Append('<');
output.Append(xmlReader.Name);
}
}
else if (output.Length == 0 || output.IsNewLine())
{
output
.Append(currentIndentString)
.Append('<')
.Append(xmlReader.Name);
}
else
{
output
.Append(Environment.NewLine)
.Append(currentIndentString)
.Append('<')
.Append(xmlReader.Name);
}
bool isEmptyElement = xmlReader.IsEmptyElement;
bool hasPutEndingBracketOnNewLine = false;
var list = new List <AttributeInfo>(xmlReader.AttributeCount);
if (xmlReader.HasAttributes)
{
while (xmlReader.MoveToNextAttribute())
{
string attributeName = xmlReader.Name;
string attributeValue = xmlReader.Value;
AttributeOrderRule orderRule = OrderRules.GetRuleFor(attributeName);
list.Add(new AttributeInfo(attributeName, attributeValue, orderRule));
}
if (Options.OrderAttributesByName)
{
list.Sort();
}
currentIndentString = GetIndentString(xmlReader.Depth);
var noLineBreakInAttributes = (list.Count <= Options.AttributesTolerance) || IsNoLineBreakElement(elementName);
// Root element?
if (_elementProcessStatusStack.Count == 2)
{
switch (Options.RootElementLineBreakRule)
{
case LineBreakRule.Default:
break;
case LineBreakRule.Always:
noLineBreakInAttributes = false;
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());
}
_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;
foreach (AttributeInfo attrInfo in list)
{
// Attributes with markup extension, always put on new line
if (attrInfo.IsMarkupExtension && Options.FormatMarkupExtension)
{
string baseIndetationString;
if (!Options.KeepFirstAttributeOnSameLine)
{
baseIndetationString = GetIndentString(xmlReader.Depth);
}
else
{
baseIndetationString = GetIndentString(xmlReader.Depth - 1) +
string.Empty.PadLeft(elementName.Length + 2, ' ');
}
string pendingAppend;
//Keep binding and / or x:bind on same line?
if ((attrInfo.Value.ToLower().Contains("x:bind ") && Options.KeepxBindOnSameLine) || Options.KeepBindingsOnSameLine)
{
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.PutAttributeOrderRuleGroupsOnSeparateLines &&
lastAttributeInfo != null &&
lastAttributeInfo.OrderRule.AttributeTokenType != attrInfo.OrderRule.AttributeTokenType;
if (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 (0 == i && Options.KeepFirstAttributeOnSameLine)
{
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());
}
_elementProcessStatusStack.Peek().IsMultlineStartTag = true;
}
// Determine if to put ending bracket on new line
if (Options.PutEndingBracketOnNewLine &&
_elementProcessStatusStack.Peek().IsMultlineStartTag)
{
output
.Append(Environment.NewLine)
.Append(currentIndentString);
hasPutEndingBracketOnNewLine = true;
}
}
if (isEmptyElement)
{
if (hasPutEndingBracketOnNewLine == false && Options.SpaceBeforeClosingSlash)
{
output.Append(' ');
}
output.Append("/>");
_elementProcessStatusStack.Peek().IsSelfClosingElement = true;
}
else
{
output.Append(">");
}
}