public static ParseResult ParseFrom(
ParseInput input
)
{
string line = input.FirstLine;
ParseResult result = new ParseResult();
if (!CanParseFrom(input))
{
// Fail immediately if we cannot parse this text as strikethrough
result.Line = line;
return(result);
}
int j = 2;
// Find closing tildes
while (
(j < line.Length) &&
!(
(line.Substring(j - 1, 2) == "~~") &&
(line[j - 2] != '\\')
)
)
{
j++;
}
if (j >= line.Length)
{
// Fail if we cannot find the closing squiggles
result.Line = line;
return(result);
}
// Parse everything inside the stars
MarkdownStrikethrough element = new MarkdownStrikethrough(
MarkdownParser.ParseInnerText(
new ParseInput(
input,
line.Substring(2, j - 3)
)
)
);
result.AddContent(element);
result.Line = line.Substring(j + 1);
result.Success = true;
return(result);
}
// Given a single line of text, parse this, including special (emph, etc...) sections
public static IHtmlable[] ParseInnerText(
ParseInput input
)
{
// Store parsed content as we go
LinkedList <IHtmlable> content = new LinkedList <IHtmlable>();
// Until the whole string has been consumed
while (input.FirstLine.Length > 0)
{
ParseResult result;
if (MarkdownStrong.CanParseFrom(input))
{
result = MarkdownStrong.ParseFrom(input);
}
else if (MarkdownStrikethrough.CanParseFrom(input))
{
result = MarkdownStrikethrough.ParseFrom(input);
}
else if (MarkdownEmphasis.CanParseFrom(input))
{
result = MarkdownEmphasis.ParseFrom(input);
}
else if (MarkdownCodeInline.CanParseFrom(input))
{
result = MarkdownCodeInline.ParseFrom(input);
}
else if (MarkdownLink.CanParseFrom(input))
{
result = MarkdownLink.ParseFrom(input);
}
else if (MarkdownImage.CanParseFrom(input))
{
result = MarkdownImage.ParseFrom(input);
}
else
{
result = MarkdownText.ParseFrom(
input,
false
);
}
/*
* If no parsing method suceeded
* for once character to be parsed as text
*/
if (!result.Success)
{
result = MarkdownText.ParseFrom(
input,
true
);
}
// Extract parsed content
foreach (IHtmlable entry in result.GetContent())
{
content.AddLast(entry);
}
// Update text to be parsed
input.FirstLine = result.Line;
}
IHtmlable[] contentArray = new IHtmlable[content.Count];
content.CopyTo(
contentArray,
0
);
return(contentArray);
}
