// 获取xml元素中的RTF
private string ProcessElement(XElement element, int level)
{
// viewer不支持有命名空间的XML文件
if (!string.IsNullOrEmpty(element.Name.Namespace.NamespaceName))
{
throw new ApplicationException(
"This viewer does not support the Xml file that has Namespace.");
}
string elementRtfFormat = string.Empty;
StringBuilder childElementsRtfContent = new StringBuilder();
StringBuilder attributesRtfContent = new StringBuilder();
// 构造indent字符串
string indent = new string(' ', 4 * level);
// 如果元素有子元素和值, 添加这个元素到RTF中
// {{0}} 将要被替换为这些属性， {{1}} 将要被替换为子元素或值
if (element.HasElements || !string.IsNullOrWhiteSpace(element.Value))
{
elementRtfFormat = string.Format(@"
{0}\cf{1} <\cf{2} {3}{{0}}\cf{1} >\par
{{1}}
{0}\cf{1} </\cf{2} {3}\cf{1} >\par",
indent,
XMLViewerSettings.TagID,
XMLViewerSettings.ElementID,
element.Name);
// 构造RTF子元素
if (element.HasElements)
{
foreach (var childElement in element.Elements())
{
string childElementRtfContent =
ProcessElement(childElement, level + 1);
childElementsRtfContent.Append(childElementRtfContent);
}
}
// 如果 !string.IsNullOrWhiteSpace(element.Value), 然后构造RTF的值
else
{
childElementsRtfContent.AppendFormat(@"{0}\cf{1} {2}\par",
new string(' ', 4 * (level + 1)),
XMLViewerSettings.ValueID,
CharacterEncoder.Encode(element.Value.Trim()));
}
}
// 元素只有这些属性. {{0}} 将要被这些属性替换.
else
{
elementRtfFormat =
string.Format(@"
{0}\cf{1} <\cf{2} {3}{{0}}\cf{1} />\par",
indent,
XMLViewerSettings.TagID,
XMLViewerSettings.ElementID,
element.Name);
}
// 构造RTF的属性
if (element.HasAttributes)
{
foreach (XAttribute attribute in element.Attributes())
{
string attributeRtfContent = string.Format(
@" \cf{0} {3}\cf{1} =\cf0 ""\cf{2} {4}\cf0 """,
XMLViewerSettings.AttributeKeyID,
XMLViewerSettings.TagID,
XMLViewerSettings.AttributeValueID,
attribute.Name,
CharacterEncoder.Encode(attribute.Value));
attributesRtfContent.Append(attributeRtfContent);
}
attributesRtfContent.Append(" ");
}
return(string.Format(elementRtfFormat, attributesRtfContent,
childElementsRtfContent));
}
// Get the Rtf of the xml element.
private string ProcessElement(XmlNode element, int level)
{
string elementRtfFormat = string.Empty;
StringBuilder childElementsRtfContent = new StringBuilder();
StringBuilder attributesRtfContent = new StringBuilder();
// Construct the indent.
string indent = new string(' ', 2 * level);
// If the element has child elements or value, then add the element to the
// Rtf. {{0}} will be replaced with the attributes and {{1}} will be replaced
// with the child elements or value.
if (element.ChildNodes.Count > 0 && !(element.ChildNodes.Count == 1 && element.ChildNodes[0] is XmlText))
{
elementRtfFormat = string.Format(@"
{0}\cf{1} <\cf{2} {3}{{0}}\cf{1} >\par
{{1}}
{0}\cf{1} </\cf{2} {3}\cf{1} >\par",
indent,
XMLViewerSettings.TagID,
XMLViewerSettings.ElementID,
element.Name);
// Construct the Rtf of child elements.
foreach (XmlNode childElement in element.ChildNodes)
{
string childElementRtfContent =
ProcessElement(childElement, level + 1);
childElementsRtfContent.Append(childElementRtfContent);
}
}
else if (element is XmlComment)
{
elementRtfFormat = string.Format(@"
{0}\cf{1} <!--
{{1}}
\cf{1} -->\par",
indent,
XMLViewerSettings.TagID);
childElementsRtfContent.AppendFormat(@"{0}\cf{1} {2}",
new string(' ', 2 * (0 /*level + 1*/)),
XMLViewerSettings.CommentID,
element.Value.Replace("\r\n", "\n").Replace("\n", "\\line "));
}
// If !string.IsNullOrWhiteSpace(element.Value), then construct the Rtf
// of the value.
else if (element.ChildNodes.Count == 1 && element.ChildNodes[0] is XmlText)
{
elementRtfFormat = string.Format(@"
{0}\cf{1} <\cf{2} {3}{{0}}\cf{1} >
{{1}}
\cf{1} </\cf{2} {3}\cf{1} >\par",
indent,
XMLViewerSettings.TagID,
XMLViewerSettings.ElementID,
element.Name);
childElementsRtfContent.AppendFormat(@"{0}\cf{1} {2}",
new string(' ', 2 * (0 /*level + 1*/)),
XMLViewerSettings.ValueID,
CharacterEncoder.Encode(((XmlText)element.ChildNodes[0]).Value.Trim()));
}
// If !string.IsNullOrWhiteSpace(element.Value), then construct the Rtf
// of the value.
else if (!string.IsNullOrWhiteSpace(element.Value))
{
elementRtfFormat = string.Format(@"
{0}\cf{1} <\cf{2} {3}{{0}}\cf{1} >
{{1}}
\cf{1} </\cf{2} {3}\cf{1} >\par",
indent,
XMLViewerSettings.TagID,
XMLViewerSettings.ElementID,
element.Name);
childElementsRtfContent.AppendFormat(@"{0}\cf{1} {2}",
new string(' ', 2 * (0 /*level + 1*/)),
XMLViewerSettings.ValueID,
CharacterEncoder.Encode(element.Value.Trim()));
}
// This element only has attributes. {{0}} will be replaced with the attributes.
else
{
elementRtfFormat =
string.Format(@"
{0}\cf{1} <\cf{2} {3}{{0}}\cf{1} />\par",
indent,
XMLViewerSettings.TagID,
XMLViewerSettings.ElementID,
element.Name);
}
// Construct the Rtf of the attributes.
if (element.Attributes != null && element.Attributes.Count > 0)
{
foreach (XmlAttribute attribute in element.Attributes)
{
string attributeRtfContent = string.Format(
@" \cf{0} {3}\cf{1} =\cf0 {5}\cf{2} {4}\cf0 {5}",
XMLViewerSettings.AttributeKeyID,
XMLViewerSettings.TagID,
XMLViewerSettings.AttributeValueID,
attribute.Name,
CharacterEncoder.Encode(attribute.Value),
settings.QuoteCharacter);
attributesRtfContent.Append(attributeRtfContent);
}
attributesRtfContent.Append(" ");
}
return(string.Format(elementRtfFormat, attributesRtfContent,
childElementsRtfContent));
}
// Get the Rtf of the xml element.
private string ProcessElement(XElement element, int level)
{
// This viewer does not support the Xml file that has Namespace.
if (!string.IsNullOrEmpty(element.Name.Namespace.NamespaceName))
{
throw new ApplicationException(
"This viewer does not support the Xml file that has Namespace.");
}
string elementRtfFormat = string.Empty;
StringBuilder childElementsRtfContent = new StringBuilder();
StringBuilder attributesRtfContent = new StringBuilder();
// Construct the indent.
string indent = new string(' ', 4 * level);
// If the element has child elements or value, then add the element to the
// Rtf. {{0}} will be replaced with the attributes and {{1}} will be replaced
// with the child elements or value.
if (element.HasElements || !string.IsNullOrWhiteSpace(element.Value))
{
elementRtfFormat = string.Format(@"
{0}\cf{1} <\cf{2} {3}{{0}}\cf{1} >\par
{{1}}
{0}\cf{1} </\cf{2} {3}\cf{1} >\par",
indent,
XMLViewerSettings.TagID,
XMLViewerSettings.ElementID,
element.Name);
// Construct the Rtf of child elements.
if (element.HasElements)
{
foreach (var childElement in element.Elements())
{
string childElementRtfContent =
ProcessElement(childElement, level + 1);
childElementsRtfContent.Append(childElementRtfContent);
}
}
// If !string.IsNullOrWhiteSpace(element.Value), then construct the Rtf
// of the value.
else
{
childElementsRtfContent.AppendFormat(@"{0}\cf{1} {2}\par",
new string(' ', 4 * (level + 1)),
XMLViewerSettings.ValueID,
CharacterEncoder.Encode(element.Value.Trim()));
}
}
// This element only has attributes. {{0}} will be replaced with the attributes.
else
{
elementRtfFormat =
string.Format(@"
{0}\cf{1} <\cf{2} {3}{{0}}\cf{1} />\par",
indent,
XMLViewerSettings.TagID,
XMLViewerSettings.ElementID,
element.Name);
}
// Construct the Rtf of the attributes.
if (element.HasAttributes)
{
foreach (XAttribute attribute in element.Attributes())
{
string attributeRtfContent = string.Format(
@" \cf{0} {3}\cf{1} =\cf0 ""\cf{2} {4}\cf0 """,
XMLViewerSettings.AttributeKeyID,
XMLViewerSettings.TagID,
XMLViewerSettings.AttributeValueID,
attribute.Name,
CharacterEncoder.Encode(attribute.Value));
attributesRtfContent.Append(attributeRtfContent);
}
attributesRtfContent.Append(" ");
}
return(string.Format(elementRtfFormat, attributesRtfContent,
childElementsRtfContent));
}
