/// <summary>
/// Walk through the block, its children and siblings, parsing string content into inline content where appropriate.
/// </summary>
/// <param name="block">The document level block from which to start the processing.</param>
/// <param name="data">Document data.</param>
/// <param name="settings">The settings that influence how the inline parsing is performed.</param>
public static void ProcessInlines(Block block, DocumentData data, CommonMarkSettings settings)
{
Stack <Inline> inlineStack = null;
var stack = new Stack <Block>();
var parsers = settings.InlineParsers;
var specialCharacters = settings.InlineParserSpecialCharacters;
var subj = new Subject(data);
StringContent sc;
int delta;
while (block != null)
{
var tag = block.Tag;
if (tag == BlockTag.Paragraph || tag == BlockTag.AtxHeading || tag == BlockTag.SetextHeading)
{
sc = block.StringContent;
if (sc != null)
{
sc.FillSubject(subj);
delta = subj.Position;
block.InlineContent = InlineMethods.parse_inlines(subj, parsers, specialCharacters);
block.StringContent = null;
if (sc.PositionTracker != null)
{
sc.PositionTracker.AddBlockOffset(-delta);
AdjustInlineSourcePosition(block.InlineContent, sc.PositionTracker, ref inlineStack);
}
}
}
if (block.FirstChild != null)
{
if (block.NextSibling != null)
{
stack.Push(block.NextSibling);
}
block = block.FirstChild;
}
else if (block.NextSibling != null)
{
block = block.NextSibling;
}
else if (stack.Count > 0)
{
block = stack.Pop();
}
else
{
block = null;
}
}
}
public static void Finalize(Block b, LineInfo line)
{
// don't do anything if the block is already closed
if (!b.IsOpen)
{
return;
}
b.IsOpen = false;
if (line.IsTrackingPositions)
{
// HTML Blocks other than type 7 call Finalize when the last line is encountered.
// Block types 6 and 7 calls Finalize once it finds the next empty row but that empty row is no longer considered to be part of the block.
var includesThisLine = b.HtmlBlockType != HtmlBlockType.None && b.HtmlBlockType != HtmlBlockType.InterruptingBlock && b.HtmlBlockType != HtmlBlockType.NonInterruptingBlock;
// (b.SourcePosition >= line.LineOffset) determines if the block started on this line.
includesThisLine = includesThisLine || b.SourcePosition >= line.LineOffset;
if (includesThisLine && line.Line != null)
{
b.SourceLastPosition = line.CalculateOrigin(line.Line.Length, false);
}
else
{
b.SourceLastPosition = line.CalculateOrigin(0, false);
}
}
#pragma warning disable 0618
b.EndLine = (line.LineNumber > b.StartLine) ? line.LineNumber - 1 : line.LineNumber;
#pragma warning restore 0618
switch (b.Tag)
{
case BlockTag.Paragraph:
var sc = b.StringContent;
if (!sc.StartsWith('['))
{
break;
}
var subj = new Subject(b.Top.Document);
sc.FillSubject(subj);
var origPos = subj.Position;
while (subj.Position < subj.Buffer.Length &&
subj.Buffer[subj.Position] == '[' &&
0 != InlineMethods.ParseReference(subj))
{
}
if (subj.Position != origPos)
{
sc.Replace(subj.Buffer, subj.Position, subj.Buffer.Length - subj.Position);
if (sc.PositionTracker != null)
{
sc.PositionTracker.AddBlockOffset(subj.Position - origPos);
}
if (Utilities.IsFirstLineBlank(subj.Buffer, subj.Position))
{
b.Tag = BlockTag.ReferenceDefinition;
}
}
break;
case BlockTag.IndentedCode:
b.StringContent.RemoveTrailingBlankLines();
break;
case BlockTag.FencedCode:
// first line of contents becomes info
var firstlinelen = b.StringContent.IndexOf('\n') + 1;
b.FencedCodeData.Info = InlineMethods.Unescape(b.StringContent.TakeFromStart(firstlinelen, true).Trim());
break;
case BlockTag.List: // determine tight/loose status
b.ListData.IsTight = true; // tight by default
var item = b.FirstChild;
Block subitem;
while (item != null)
{
// check for non-final non-empty list item ending with blank line:
if (item.IsLastLineBlank && item.NextSibling != null)
{
b.ListData.IsTight = false;
break;
}
// recurse into children of list item, to see if there are spaces between them:
subitem = item.FirstChild;
while (subitem != null)
{
if (EndsWithBlankLine(subitem) && (item.NextSibling != null || subitem.NextSibling != null))
{
b.ListData.IsTight = false;
break;
}
subitem = subitem.NextSibling;
}
if (!b.ListData.IsTight)
{
break;
}
item = item.NextSibling;
}
break;
}
}
public static void PostProcessInlineStack(Subject subj, InlineStack first, InlineStack last, InlineStackPriority ignorePriority)
{
while (ignorePriority > 0)
{
var istack = first;
while (istack != null)
{
if (istack.Priority >= ignorePriority)
{
RemoveStackEntry(istack, subj, istack);
}
else if (0 != (istack.Flags & InlineStackFlags.Closer))
{
bool canClose;
var iopener = FindMatchingOpener(istack.Previous, istack.Priority, istack.Delimiter, istack.DelimiterCount, (istack.Flags & InlineStackFlags.Opener) > 0, out canClose);
if (iopener != null)
{
bool retry = false;
if (iopener.Delimiter == '~')
{
InlineMethods.MatchInlineStack(iopener, subj, istack.DelimiterCount, istack, 0, InlineTag.Strikethrough);
if (istack.DelimiterCount > 1)
{
retry = true;
}
}
else
{
var useDelims = InlineMethods.MatchInlineStack(iopener, subj, istack.DelimiterCount, istack, InlineTag.Emphasis, InlineTag.Strong);
if (istack.DelimiterCount > 0)
{
retry = true;
}
}
if (retry)
{
// remove everything between opened and closer (not inclusive).
if (istack.Previous != null && iopener.Next != istack.Previous)
{
RemoveStackEntry(iopener.Next, subj, istack.Previous);
}
continue;
}
// remove opener, everything in between, and the closer
RemoveStackEntry(iopener, subj, istack);
}
else if (!canClose)
{
// this case means that a matching opener does not exist
// remove the Closer flag so that a future Opener can be matched against it.
istack.Flags &= ~InlineStackFlags.Closer;
}
}
if (istack == last)
{
break;
}
istack = istack.Next;
}
ignorePriority--;
}
}