public static ParseResult ParseFrom(
ParseInput input
)
{
ArraySegment <string> lines = input.Lines();
ParseResult result = new ParseResult();
if (!CanParseFrom(input))
{
return(result);
}
/*
* Work out the list type from the first line
* before we start to mangle the line contents
*/
MarkdownElementType type;
if (regexOrderedListLine.Match(input.FirstLine).Success)
{
type = MarkdownElementType.OrderedList;
}
else
{
type = MarkdownElementType.UnorderedList;
}
int endListSection = FindEndOfListSection(
lines
);
// New array segment with only parsed content
ArraySegment <string> listLines = new ArraySegment <string>(
lines.Array,
lines.Offset,
endListSection
);
// Need to split into groups per list item
int currentIndex = 0;
// Hold the parsed list items as we go
LinkedList <IHtmlable> listItems = new LinkedList <IHtmlable>();
// Track whether list item contents should be in a paragraph
bool whitespaceLineBefore = false;
bool whitespaceLineAfter = false;
while (currentIndex < endListSection)
{
int endIndex = FindEndOfListItem(
listLines,
currentIndex
);
/*
* There is a whitespace line between
* this list item and the following one
* and this list item isn't the final one
*/
whitespaceLineAfter = (
(endIndex < listLines.Count) &&
(
ContainsOnlyWhitespace(
listLines[endIndex - 1]
)
)
);
// Create new parse input for this list item
ParseInput listItemLines = new ParseInput(
input.Urls,
listLines.Array,
listLines.Offset + currentIndex,
endIndex - currentIndex
);
RemoveListIndicators(
listItemLines
);
ParseResult nextListItem = MarkdownListItem.ParseFrom(
listItemLines,
whitespaceLineBefore || whitespaceLineAfter
);
foreach (
IHtmlable entry
in nextListItem.GetContent()
)
{
listItems.AddLast(
entry
);
}
// Jump over lines just parsed
currentIndex += (endIndex - currentIndex);
// Whitespace after previous entry becomes before next entry
whitespaceLineBefore = whitespaceLineAfter;
/*
* If there's further whitespace after parsed section
* (for some reason) then jump over this too
*/
while (
(currentIndex < listLines.Count) &&
(
ContainsOnlyWhitespace(
lines[currentIndex]
)
)
)
{
currentIndex++;
}
}
result.Success = true;
result.AddContent(
new MarkdownList(
Utils.LinkedListToArray(
listItems
),
type
)
);
return(result);
}
// Parse a plain paragraph
public static ParseResult ParseFrom(
ParseInput input
)
{
ArraySegment <string> lines = input.Lines();
ParseResult result = new ParseResult();
LinkedList <IHtmlable> innerContent = new LinkedList <IHtmlable>();
// The paragraph doesn't get parsed past the first blank line
int endIndex = 0;
while (
(endIndex < lines.Count) &&
(
!ContainsOnlyWhitespace(
lines[endIndex]
)
)
)
{
endIndex++;
}
int i = 0;
while (i < endIndex)
{
lines = input.Lines();
if (MarkdownCodeBlock.CanParseFrom(input))
{
ParseResult innerResult = MarkdownCodeBlock.ParseFrom(input);
foreach (IHtmlable entry in innerResult.GetContent())
{
innerContent.AddLast(entry);
}
}
else
{
string line = lines[0];
if (endsWithAtLeastTwoSpaces(line))
{
string shortened = StripTrailingWhitespace(line);
foreach (
IHtmlable entry
in MarkdownParser.ParseInnerText(
new ParseInput(
input,
shortened
)
)
)
{
innerContent.AddLast(entry);
}
innerContent.AddLast(
new MarkdownLinebreak()
);
}
else
{
foreach (
IHtmlable entry
in MarkdownParser.ParseInnerText(
new ParseInput(
input,
line
)
)
)
{
innerContent.AddLast(entry);
}
/*
* If this is not the last line,
* it doesn't end in a manual linebreak
* and the user hasn't added a space themselves
* we need to add a space at the end
*/
if (
(i < (endIndex - 1)) &&
(line.Length > 0) &&
(line[^ 1] != ' ')