internal bool ProcessMarkdownEnabledHtml(Block b, HtmlTag openingTag, MarkdownInHtmlMode mode)
{
// Current position is just after the opening tag
// Scan until we find matching closing tag
int inner_pos = position;
int depth = 1;
bool bHasUnsafeContent = false;
while (!eof)
{
// Find next angle bracket
if (!Find('<'))
break;
// Is it a html tag?
int tagpos = position;
HtmlTag tag = HtmlTag.Parse(this);
if (tag == null)
{
// Nope, skip it
SkipForward(1);
continue;
}
// In markdown off mode, we need to check for unsafe tags
if (m_markdown.SafeMode && mode == MarkdownInHtmlMode.Off && !bHasUnsafeContent)
{
if (!tag.IsSafe())
bHasUnsafeContent = true;
}
// Ignore self closing tags
if (tag.closed)
continue;
// Same tag?
if (tag.name == openingTag.name)
{
if (tag.closing)
{
depth--;
if (depth == 0)
{
// End of tag?
SkipLinespace();
SkipEol();
b.blockType = BlockType.HtmlTag;
b.data = openingTag;
b.contentEnd = position;
switch (mode)
{
case MarkdownInHtmlMode.Span:
{
Block span = this.CreateBlock();
span.buf = input;
span.blockType = BlockType.span;
span.contentStart = inner_pos;
span.contentLen = tagpos - inner_pos;
b.children = new List<Block>();
b.children.Add(span);
break;
}
case MarkdownInHtmlMode.Block:
case MarkdownInHtmlMode.Deep:
{
// Scan the internal content
var bp = new BlockProcessor(m_markdown, mode == MarkdownInHtmlMode.Deep);
b.children = bp.ScanLines(input, inner_pos, tagpos - inner_pos);
break;
}
case MarkdownInHtmlMode.Off:
{
if (bHasUnsafeContent)
{
b.blockType = BlockType.unsafe_html;
b.contentEnd = position;
}
else
{
Block span = this.CreateBlock();
span.buf = input;
span.blockType = BlockType.html;
span.contentStart = inner_pos;
span.contentLen = tagpos - inner_pos;
b.children = new List<Block>();
b.children.Add(span);
}
break;
}
}
return true;
}
}
else
{
depth++;
}
}
}
// Missing closing tag(s).
return false;
}
/// <summary>
/// Handles the tab for tabs extension. This is a docnet extension and it handles:
/// @tab tab head text
/// tab content
/// @end
/// </summary>
/// <param name="b">The current block.</param>
/// <returns></returns>
private bool HandleTabForTabsExtension(Block b)
{
// skip '@tab'
if(!SkipString("@tab"))
{
return false;
}
SkipLinespace();
var tabHeaderTextStart = this.Position;
// skip to eol, then grab the content between positions.
SkipToEol();
var tabHeaderText = this.Input.Substring(tabHeaderTextStart, this.Position - tabHeaderTextStart);
SkipToNextLine();
int startContent = this.Position;
// find @end.
if(!Find("@end"))
{
return false;
}
// Character before must be a eol char
if(!IsLineEnd(CharAtOffset(-1)))
{
return false;
}
int endContent = Position;
// skip @end
SkipString("@end");
SkipLinespace();
if(!Eol)
{
return false;
}
// Remove the trailing line end
endContent = UnskipCRLFBeforePos(endContent);
b.BlockType = BlockType.tab;
b.Data = tabHeaderText;
// scan the content, as it can contain markdown statements.
var contentProcessor = new BlockProcessor(m_markdown, m_markdown.MarkdownInHtml);
b.Children = contentProcessor.ScanLines(Input, startContent, endContent - startContent);
return true;
}
private bool HandleTabsExtension(Block b)
{
// skip '@tabs'
if(!SkipString("@tabs"))
{
return false;
}
// ignore what's specified behind @tabs
SkipToNextLine();
int startContent = this.Position;
// find @end.
if(!Find("@endtabs"))
{
return false;
}
// Character before must be a eol char
if(!IsLineEnd(CharAtOffset(-1)))
{
return false;
}
int endContent = Position;
// skip @end
SkipString("@endtabs");
SkipLinespace();
if(!Eol)
{
return false;
}
// Remove the trailing line end
endContent = UnskipCRLFBeforePos(endContent);
b.BlockType = BlockType.tabs;
// scan the content, as it can contain markdown statements.
var contentProcessor = new BlockProcessor(m_markdown, m_markdown.MarkdownInHtml);
var scanLines = contentProcessor.ScanLines(this.Input, startContent, endContent - startContent);
// check whether the content is solely tab blocks. If not, we ignore this tabs specification.
if(scanLines.Any(x=>x.BlockType != BlockType.tab))
{
return false;
}
b.Children = scanLines;
return true;
}
/// <summary>
/// Handles the alert extension:
/// @alert type
/// text
/// @end
///
/// where text can be anything and has to be handled further.
/// type is: danger, warning, info or neutral.
/// </summary>
/// <param name="b">The b.</param>
/// <returns></returns>
private bool HandleAlertExtension(Block b)
{
// skip '@alert'
if(!SkipString("@alert"))
{
return false;
}
SkipLinespace();
var alertType = string.Empty;
if(!SkipIdentifier(ref alertType))
{
return false;
}
SkipToNextLine();
int startContent = this.Position;
// find @end.
if(!Find("@end"))
{
return false;
}
// Character before must be a eol char
if(!IsLineEnd(CharAtOffset(-1)))
{
return false;
}
int endContent = Position;
// skip @end
SkipString("@end");
SkipLinespace();
if(!Eol)
{
return false;
}
// Remove the trailing line end
endContent = UnskipCRLFBeforePos(endContent);
b.BlockType = BlockType.alert;
b.Data = alertType.ToLowerInvariant();
// scan the content, as it can contain markdown statements.
var contentProcessor = new BlockProcessor(m_markdown, m_markdown.MarkdownInHtml);
b.Children = contentProcessor.ScanLines(Input, startContent, endContent - startContent);
return true;
}