internal static async Task <FrontMatterParseResult> TryReadFrontMatter(TextReader input)
{
// Create a string builder to capture any content outside the front matter that we have to read to find the front matter
StringBuilder nonMatterBuilder = new StringBuilder();
// Read lines until the first non-whitespace one
string line = null;
while (string.IsNullOrWhiteSpace(line = await input.ReadLineAsync()))
{
nonMatterBuilder.AppendLine(line);
}
// Ok, now we have the first non-whitespace line. Check for front matter
FrontMatter frontMatter = null;
if (string.Equals(line.Trim(), Delimiter, StringComparison.Ordinal))
{
// It is! Read until the end of the front matter
StringBuilder frontMatterContent = new StringBuilder();
while (!string.Equals(line = await input.ReadLineAsync(), Delimiter, StringComparison.Ordinal))
{
frontMatterContent.AppendLine(line);
}
// Input is positioned at the first non-front matter content, so we're done!
frontMatter = new FrontMatter(BadYamlParser.Parse(frontMatterContent.ToString()));
}
else
{
// Not front-matter, put the line in the content (along with a terminator)
nonMatterBuilder.AppendLine(line);
}
return(new FrontMatterParseResult(
frontMatter,
nonMatterBuilder.ToString()));
}
public DocumentationPage(string fileName, FrontMatter frontMatter, HtmlString content)
{
FileName = fileName;
FrontMatter = frontMatter;
Content = content;
}
public FrontMatterParseResult(FrontMatter frontMatter, string nonFrontMatterContent)
{
FrontMatter = frontMatter;
NonFrontMatterContent = nonFrontMatterContent;
}