/// <summary>
/// The the attribute value for a linkAttribute
/// </summary>
/// <param name="linkAttribute">The link attribute representation</param>
/// <returns>The attribute value as a string</returns>
public string GetAttributeValue(LinkReferenceWrapper linkAttribute)
{
// Remove leading and trailing quotes
string pathAttributeValue = linkAttribute._outputPathAttributeValue.Trim(new char[] { '\'', '"' });
return(pathAttributeValue);
}
/// <summary>
/// Utility method to change a link attribute, by entering a new value.
/// </summary>
/// <param name="linkAttribute">The link reference representation to alter</param>
/// <param name="replacementFormatString">The string-format to use in updating the value</param>
/// <param name="replacementValue">The new value to enter into the document</param>
private void InjectAttribute(LinkReferenceWrapper linkAttribute, string replacementFormatString, object replacementValue)
{
string attributeInjection = String.Format(replacementFormatString,
linkAttribute._outputPathAttributeValue, // 0
replacementValue, // 1
linkAttribute._attributeName); // 2
Group linkPosition = linkAttribute._linkPosition;
int linkEndPosition = linkPosition.Index + linkPosition.Length;
_contentString = _contentString.Substring(0, linkPosition.Index) + attributeInjection +
_contentString.Substring(linkEndPosition, _contentString.Length - linkEndPosition);
}
/// <summary>
/// Get an Iterator of all the link attribute values in the document.
/// </summary>
/// <param name="expressions">The regular expressions to execute on the text</param>
/// <returns>An enumerator of link attribute matches.</returns>
internal IEnumerable <LinkReferenceWrapper> GetLinkAttributes(Regex[] expressions)
{
string[] templateStringContainer = new string[] { _contentString };;
foreach (Regex expression in expressions)
{
foreach (Match linkMatch in TemplateUtilities.GetRegexMatches(templateStringContainer, expression))
{
LinkReferenceWrapper linkAttribute = new LinkReferenceWrapper(linkMatch);
linkAttribute._linkPosition = linkMatch.Groups[MATCH_PATH_GROUP_NAME];
linkAttribute._attributeName = linkMatch.Groups[MATCH_NAME_GROUP_NAME].ToString();
linkAttribute._outputPathAttributeValue = _contentString.Substring
(linkAttribute._linkPosition.Index, linkAttribute._linkPosition.Length);
yield return(linkAttribute);
templateStringContainer[0] = _contentString;
}
}
}
/// <summary>
/// Add link attributes for a target item to an existing attribute,
/// or change URL to a TCM URI in a CSS url reference.
/// </summary>
/// <param name="linkAttribute">The link attribute representation</param>
/// <param name="targetItemUri">The Tcm Uri of the target</param>
public void ProcessLinkChange(LinkReferenceWrapper linkAttribute, TcmUri targetItemUri)
{
// Make distinction between import and other statements
string replacementFormatString;
if ((linkAttribute._attributeName.ToLower() == "import") || (linkAttribute._attributeName.ToLower() == "url"))
{
// CSS reference
replacementFormatString = MULTIMEDIA_CSS_IMPORT_ATTRIBUTE_FORMAT;
}
else
{
// other link
replacementFormatString = MULTIMEDIA_LINK_ATTRIBUTE_FORMAT;
}
InjectAttribute(linkAttribute, replacementFormatString, targetItemUri);
}
/// <summary>
/// Replace an existing link attribute value in a link reference.
/// </summary>
/// <param name="linkAttribute">The link to process</param>
/// <param name="replacementValue">The new value to store</param>
internal void ReplaceValue(LinkReferenceWrapper linkAttribute, string replacementValue)
{
InjectAttribute(linkAttribute, ATTRIBUTE_VALUE_REPLACEMENT_FORMAT, replacementValue);
}
/// <summary>
/// Utility method to change a link attribute, by entering a new value.
/// </summary>
/// <param name="linkAttribute">The link reference representation to alter</param>
/// <param name="replacementFormatString">The string-format to use in updating the value</param>
/// <param name="replacementValue">The new value to enter into the document</param>
private void InjectAttribute(LinkReferenceWrapper linkAttribute, string replacementFormatString, object replacementValue)
{
string attributeInjection = String.Format(replacementFormatString,
linkAttribute._outputPathAttributeValue, // 0
replacementValue, // 1
linkAttribute._attributeName); // 2
Group linkPosition = linkAttribute._linkPosition;
int linkEndPosition = linkPosition.Index + linkPosition.Length;
_contentString = _contentString.Substring(0, linkPosition.Index) + attributeInjection +
_contentString.Substring(linkEndPosition, _contentString.Length - linkEndPosition);
}
/// <summary>
/// Replace an existing link attribute value in a link reference.
/// </summary>
/// <param name="linkAttribute">The link to process</param>
/// <param name="replacementValue">The new value to store</param>
internal void ReplaceValue(LinkReferenceWrapper linkAttribute, string replacementValue)
{
InjectAttribute(linkAttribute, ATTRIBUTE_VALUE_REPLACEMENT_FORMAT, replacementValue);
}
/// <summary>
/// Get an Iterator of all the link attribute values in the document.
/// </summary>
/// <param name="expressions">The regular expressions to execute on the text</param>
/// <returns>An enumerator of link attribute matches.</returns>
internal IEnumerable<LinkReferenceWrapper> GetLinkAttributes(Regex[] expressions)
{
string[] templateStringContainer = new string[] { _contentString }; ;
foreach (Regex expression in expressions)
{
foreach (Match linkMatch in TemplateUtilities.GetRegexMatches(templateStringContainer, expression))
{
LinkReferenceWrapper linkAttribute = new LinkReferenceWrapper(linkMatch);
linkAttribute._linkPosition = linkMatch.Groups[MATCH_PATH_GROUP_NAME];
linkAttribute._attributeName = linkMatch.Groups[MATCH_NAME_GROUP_NAME].ToString();
linkAttribute._outputPathAttributeValue = _contentString.Substring
(linkAttribute._linkPosition.Index, linkAttribute._linkPosition.Length);
yield return linkAttribute;
templateStringContainer[0] = _contentString;
}
}
}
/// <summary>
/// Add link attributes for a target item to an existing attribute,
/// or change URL to a TCM URI in a CSS url reference.
/// </summary>
/// <param name="linkAttribute">The link attribute representation</param>
/// <param name="targetItemUri">The Tcm Uri of the target</param>
public void ProcessLinkChange(LinkReferenceWrapper linkAttribute, TcmUri targetItemUri)
{
// Make distinction between import and other statements
string replacementFormatString;
if ((linkAttribute._attributeName.ToLower() == "import") || (linkAttribute._attributeName.ToLower() == "url"))
{
// CSS reference
replacementFormatString = MULTIMEDIA_CSS_IMPORT_ATTRIBUTE_FORMAT;
}
else
{
// other link
replacementFormatString = MULTIMEDIA_LINK_ATTRIBUTE_FORMAT;
}
InjectAttribute(linkAttribute, replacementFormatString, targetItemUri);
}
/// <summary>
/// The the attribute value for a linkAttribute
/// </summary>
/// <param name="linkAttribute">The link attribute representation</param>
/// <returns>The attribute value as a string</returns>
public string GetAttributeValue(LinkReferenceWrapper linkAttribute)
{
// Remove leading and trailing quotes
string pathAttributeValue = linkAttribute._outputPathAttributeValue.Trim(new char[] { '\'', '"' });
return pathAttributeValue;
}
