/// <summary>
/// Causes the <see cref="ITagDefinition"/> to remove any whitespace it sees fit that is around its
/// identified <see cref="ITagInstance"/>s. An <see cref="ITagDefinition"/> does not need to remove
/// any whitespace, if it doesn't want to.
/// </summary>
/// <remarks>
/// This method is always called before <see cref="ITagDefinition.Render"/> is called on any <see cref="ITagDefinition"/>.
/// The order in which this method is called across the different <see cref="ITagDefinition"/>s is undefined.
/// </remarks>
/// <param name="context">
/// The <see cref="IWhitespaceRemovalContext"/> contains all <see cref="ITagInstance"/>s, the input text,
/// and methods that allow for the removal of whitespace.
/// </param>
public void RemoveWhitespace(IWhitespaceRemovalContext context)
{
IEnumerable <IOpenTagInstance> tagInstances = context.Tags.Where(t => t.ParentDefinition == this)
.OfType <OpenTagInstance>();
foreach (IOpenTagInstance openTag in tagInstances)
{
ICloseTagInstance closeTag = openTag.CloseTag;
IList <ListItemTagInstance> listItemTags = context.GetTagsAfter(openTag)
.TakeWhile(t => t != closeTag)
.WhereStackDepthIs(0)
.OfType <ListItemTagInstance>()
.ToList();
//Don't remove whitespace if there's only whitespace in between the open and close tags
//because the tag won't be rendered
if (listItemTags.Any() == false &&
_WhitespaceRegex.Match(context.GetRenderString(openTag, closeTag)).Success)
{
continue;
}
context.RemoveWhitespaceBeforeTag(openTag, 1);
context.RemoveWhitespaceAfterTag(openTag, 1);
context.RemoveWhitespaceBeforeTag(openTag.CloseTag, 1);
context.RemoveWhitespaceAfterTag(openTag.CloseTag, 2);
}
}
/// <summary>
/// Causes the <see cref="ITagDefinition"/> to remove any whitespace it sees fit that is around its
/// identified <see cref="ITagInstance"/>s. An <see cref="ITagDefinition"/> does not need to remove any
/// whitespace, if it doesn't want to.
/// </summary>
/// <remarks>
/// This method is always called before <see cref="ITagDefinition.Render"/> is called on any
/// <see cref="ITagDefinition"/>. The order in which this method is called across the different
/// <see cref="ITagDefinition"/>s is undefined.
/// </remarks>
/// <param name="context">
/// The <see cref="IWhitespaceRemovalContext"/> contains all <see cref="ITagInstance"/>s, the input text,
/// and methods that allow for the removal of whitespace.
/// </param>
public override void RemoveWhitespace(IWhitespaceRemovalContext context)
{
IEnumerable <IOpenTagInstance> tagInstances = context.Tags.Where(t => t.ParentDefinition == this)
.OfType <IOpenTagInstance>();
foreach (IOpenTagInstance openTag in tagInstances)
{
context.RemoveWhitespaceBeforeTag(openTag, 1);
context.RemoveWhitespaceAfterTag(openTag, 1);
context.RemoveWhitespaceBeforeTag(openTag.CloseTag, 1);
context.RemoveWhitespaceAfterTag(openTag.CloseTag, 2);
}
}
/// <summary>
/// Causes the <see cref="ITagDefinition"/> to remove any whitespace it sees fit that is around its
/// identified <see cref="ITagInstance"/>s. An <see cref="ITagDefinition"/> does not need to remove any
/// whitespace, if it doesn't want to.
/// </summary>
/// <remarks>
/// <para>
/// This method is always called before <see cref="ITagDefinition.Render"/> is called on any
/// <see cref="ITagDefinition"/>. The order in which this method is called across the different
/// <see cref="ITagDefinition"/>s is undefined.
/// </para>
/// <para>
/// This method does nothing in its default implementation. Inheritors should override this method
/// if they want to perform whitespace removal.
/// </para>
/// </remarks>
/// <param name="context">
/// The <see cref="IWhitespaceRemovalContext"/> contains all <see cref="ITagInstance"/>s, the input text,
/// and methods that allow for the removal of whitespace.
/// </param>
public virtual void RemoveWhitespace(IWhitespaceRemovalContext context)
{
//Do nothing by default. Override if you need to perform something here.
}
