public static async ValueTask InitializeAsync(
this FileToken token,
Options options,
string destination = null)
{
if (token.FileType == FileType.Markdown ||
token.FileType == FileType.Yaml)
{
var found = await FileTokenCacheUtility.TryFindCachedVersionAsync(token, options, destination);
if (!found)
{
var lines = await File.ReadAllLinesAsync(token.FilePath);
var dir = token.DirectoryName;
var type = token.FileType;
if (type == FileType.Markdown && Metadata.TryParse(lines, out var metadata))
{
token.Header = metadata;
}
foreach (var(tokenType, tokenValue, lineNumber) in
lines.SelectMany((line, lineNumber) => FindAllTokensInLine(line, lineNumber + 1, TokenExpressions.FileTypeToExpressionMap[type]))
.Where(tuple => !string.IsNullOrEmpty(tuple.Item2)))
{
if (tokenType == TokenType.CodeFence)
{
token.CodeFenceSlugs[lineNumber] = tokenValue;
continue;
}
if (tokenType == TokenType.Xref)
{
token.Xrefs.Add(tokenValue);
continue;
}
if (tokenType == TokenType.Unrecognizable)
{
continue;
}
var(isFound, fullPath) = await FileFinder.TryFindFileAsync(options, dir, tokenValue);
if (isFound && !string.IsNullOrWhiteSpace(fullPath))
{
var file = new FileInfo(fullPath.NormalizePathDelimitors());
switch (file.GetFileType())
{
case FileType.Image:
token.ImagesReferenced.Add(file.FullName);
break;
case FileType.Markdown:
token.TopicsReferenced.Add(file.FullName);
break;
}
}
}
await FileTokenCacheUtility.CacheTokenAsync(token, options, destination);
}
}
}
