public static HtmlAttributeCollection Parse(String htmlTag)
{
HtmlAttributeCollection collection = new HtmlAttributeCollection();
if (String.IsNullOrEmpty(htmlTag))
{
return(collection);
}
// We remove the name of the tag (due to our regex) and ensure there are at least one parameter
int startIndex;
for (startIndex = 0; startIndex < htmlTag.Length; startIndex++)
{
if (Char.IsWhiteSpace(htmlTag[startIndex]))
{
startIndex++;
break;
}
else if (htmlTag[startIndex] == '>' || htmlTag[startIndex] == '/')
{
// no attribute in this tag
return(collection);
}
}
MatchCollection matches = stripAttributesRegex.Matches(htmlTag, startIndex);
foreach (Match m in matches)
{
collection.attributes[m.Groups["tag"].Value] = m.Groups["val"].Value;
}
return(collection);
}
/// <summary>
/// Use as MoveNext() but this function will stop once the current value is equals to tag.
/// </summary>
/// <param name="tag">The tag to stop on (Optional).</param>
/// <returns>
/// If tag is null, it returns true if the enumerator was successfully advanced to the next element; false
/// if the enumerator has passed the end of the collection.<br/>
/// If tag is not null, it returns false as long as the tag was not found.
/// </returns>
public bool MoveUntilMatch(String tag)
{
current = currentTag = null;
attributes = styleAttributes = null;
bool success;
// Ignore empty lines
while ((success = en.MoveNext()) && (current = en.Current.Trim('\r', '\n')).Length == 0)
{
;
}
if (success && tag != null)
{
return(!current.Equals(tag, StringComparison.CurrentCultureIgnoreCase));
}
return(success);
}
public static HtmlAttributeCollection ParseStyle(String htmlTag)
{
HtmlAttributeCollection collection = new HtmlAttributeCollection();
if (String.IsNullOrEmpty(htmlTag))
{
return(collection);
}
// Encoded ':' and ';' characters are valid for browser but not handled by the regex (bug #13812 reported by robin391)
// ex= <span style="text-decoration:underline;color:red">
MatchCollection matches = stripStyleAttributesRegex.Matches(HttpUtility.HtmlDecode(htmlTag));
foreach (Match m in matches)
{
collection.attributes[m.Groups["name"].Value] = m.Groups["val"].Value;
}
return(collection);
}
