public void Handle(IList<string> sourceLines, DiaryMode mode, StringBuilder sink, Action<IList<string>> yield)
{
if (mode == DiaryMode.Html)
HandleHtml(sourceLines, sink, yield);
else
HandlePlainText(sourceLines, sink, yield);
}
public string Handle(string source, DiaryMode mode)
{
var fromCache = cached;
var match = (fromCache != null && fromCache.Source.Equals(source)) ? fromCache.Match : regex.Match(source);
var flickruser = match.Groups[1].Value;
var photoid = match.Groups[2].Value;
var options = match.Groups.OfType<Group>().Skip(2).Select(g => g.Value).ToArray();
var wanted = options.AnyOfOrDefault(new[] { "small", "medium", "large", "square" }) ?? "medium";
var result = source;
try {
XDocument sizes = FlickrApi.WithKey(apiKey).Photos.GetSizes(photoId: photoid);
var image = sizes.Descendants("size").First(sz => string.Compare(sz.Attribute("label").Value, wanted, true) == 0);
var jpg = image.Attribute("source").Value;
var width = image.Attribute("width").Value;
var height = image.Attribute("height").Value;
if (mode == DiaryMode.Html) {
result = string.Format("<img src=\"{0}\" width=\"{1}\" height=\"{2}\" />", jpg, width, height);
XDocument info = FlickrApi.WithKey(apiKey).Photos.GetInfo(photoId: photoid);
var url = info.Descendants("url").Where(p => p.Attribute("type").Value == "photopage").First().Value;
result = string.Format("<a href=\"{0}\">{1}</a>", url, result);
}
else {
result = jpg;
}
}
catch { }
return result;
}
private string ParagraphHandler(string paragraph, DiaryMode mode)
{
var pbuilder = new StringBuilder();
var paragraphPlugins = new Stack<IDiaryParagraphPlugin>(Plugins.OfType<IDiaryParagraphPlugin>());
var linePlugins = new Stack<IDiaryLinePlugin>(Plugins.OfType<IDiaryLinePlugin>());
var linkPlugins = new Stack<IDiaryLinkPlugin>(Plugins.OfType<IDiaryLinkPlugin>());
Action<IList<string>> prevYield = lines => {
// do line plugins
while (linePlugins.Count > 0) {
var plugin = linePlugins.Pop();
lines = lines.SelectMany(x => plugin.Handle(x, mode)).ToArray();
}
var linkRegex = new Regex(@"\[([^\]]+)\]");
var result = lines.Select(l => linkRegex.Replace(l, me => {
var content = me.Groups[1].Value;
var plugin = linkPlugins.FirstOrDefault(lp => lp.CanHandle(content, mode));
return plugin == null ? content : me.Result(plugin.Handle(content, mode));
}));
// join final result into one string
pbuilder.Append(string.Join("\r\n", result));
};
while (paragraphPlugins.Count > 0) {
var plugin = paragraphPlugins.Pop();
var wrappedYield = prevYield;
prevYield = l => plugin.Handle(l, mode, pbuilder, wrappedYield);
}
prevYield(paragraph.Split(new[] { "\r\n" }, StringSplitOptions.None));
return pbuilder.ToString();
}
private string Convert(string diary, DiaryMode mode)
{
if (string.IsNullOrWhiteSpace(diary))
return diary;
return string.Join("\r\n", diary.Split(new[] { "\r\n\r\n" }, StringSplitOptions.RemoveEmptyEntries)
.Select(x => ParagraphHandler(x, mode))
.Union(new[] { "" }));
}
public void Handle(IList<string> sourceLines, DiaryMode mode, StringBuilder sink, Action<IList<string>> yield)
{
var marker = Guid.NewGuid().ToString("N");
var result = string.Join(marker, sourceLines);
var boldReplacement = mode == DiaryMode.Html ? "<strong>$2</strong>" : "$2";
var italicsReplacement = mode == DiaryMode.Html ? "<em>$2</em>" : "$2";
result = bold.Replace(result, boldReplacement);
result = italics.Replace(result, italicsReplacement);
yield(result.Split(new[] { marker }, StringSplitOptions.None));
}
protected override string Handle(Match match, DiaryMode mode)
{
var url = match.Groups[2].Value;
var alt = match.Groups[1].Value;
if (mode == DiaryMode.Html) {
return string.Format("<img src=\"{0}\" alt=\"{1}\" style='max-width: 600px'>", url, HttpUtility.HtmlEncode(alt));
}
return string.IsNullOrEmpty(alt)
? url
: string.Format("{1} ({0})", url, alt);
}
protected override string Handle(Match match, DiaryMode mode)
{
var url = match.Groups[2].Value;
var text = match.Groups[1].Value;
if (mode == DiaryMode.Html) {
if (string.IsNullOrWhiteSpace(text)) text = url;
return string.Format("<a href=\"{0}\">{1}</a>", url, Regex.Replace(text, "^mailto:", ""));
}
if (string.IsNullOrWhiteSpace(text))
return Regex.Replace(url, "^mailto:", "");
return string.Format("{1} ({0})", url, Regex.Replace(text, "^mailto:", ""));
}
public string Handle(string source, DiaryMode mode)
{
var fromCache = cached;
var match = (fromCache != null && fromCache.Source.Equals(source)) ? fromCache.Match : regex.Match(source);
var flickruser = match.Groups[1].Value;
var setid = match.Groups[2].Value;
return mode == DiaryMode.Html
? string.Format(@"<object width=""500"" height=""375""> <param name=""flashvars"" value=""offsite=true&lang=en-us&page_show_url=%2Fphotos%2F{0}%2Fsets%2F{1}%2Fshow%2F&page_show_back_url=%2Fphotos%2F{0}%2Fsets%2F{1}%2F&set_id={1}&jump_to=""></param> <param name=""movie"" value=""http://www.flickr.com/apps/slideshow/show.swf?v=71649""></param> <param name=""allowFullScreen"" value=""true""></param><embed type=""application/x-shockwave-flash"" src=""http://www.flickr.com/apps/slideshow/show.swf?v=71649"" allowFullScreen=""true"" flashvars=""offsite=true&lang=en-us&page_show_url=%2Fphotos%2F{0}%2Fsets%2F{1}%2Fshow%2F&page_show_back_url=%2Fphotos%2F{0}%2Fsets%2F{1}%2F&set_id={1}&jump_to="" width=""500"" height=""375""></embed></object>",
flickruser, setid)
: source;
}
public bool CanHandle(string source, DiaryMode mode)
{
if (!Supports(mode))
return false;
foreach (var regex in regexes) {
var match = regex.Match(source);
if (match.Success) {
cached = new MatchCache(source, match);
return true;
}
}
return false;
}
public string Handle(string source, DiaryMode mode)
{
var fromCache = cached;
var match = (fromCache != null && fromCache.Source.Equals(source)) ? fromCache.Match : regex.Match(source);
var videoId = match.Groups[1].Value;
var result = source;
try {
result = string.Format(@"<iframe src=""http://player.vimeo.com/video/{0}?byline=0&portrait=0&color=ff9933"" width=""500"" height=""281"" frameborder=""0""></iframe>",
videoId);
}
catch { }
return result;
}
public void Handle(IList<string> sourceLines, DiaryMode mode, StringBuilder sink, Action<IList<string>> yield)
{
var bqRegex = new Regex(@"^([ \t]*\><(?:[ \t]|$))", RegexOptions.Compiled);
var bqTest = bqRegex.Match(sourceLines.First());
if (bqTest.Success) {
// it's a blockquote!
if (mode == DiaryMode.Html) {
sink.Append("<div align=\"center\">\r\n");
yield(sourceLines.Select(l => bqRegex.Replace(l, "")).ToList());
sink.Append("</div>\r\n");
}
else {
yield(sourceLines.Select(l => " " + bqRegex.Replace(l, "")).ToList());
}
}
else
yield(sourceLines);
}
public string Handle(string source, DiaryMode mode)
{
var fromCache = cached;
Match match = null;
if (fromCache != null && fromCache.Source.Equals(source))
match = fromCache.Match;
else {
foreach (var regex in regexes) {
var tryMatch = regex.Match(source);
if (tryMatch.Success) {
match = tryMatch;
}
}
}
if (match == null)
return source;
return Handle(match, mode);
}
protected abstract bool Supports(DiaryMode mode);
protected override bool Supports(DiaryMode mode)
{
return mode == DiaryMode.Html;
}
protected override string Handle(Match match, DiaryMode mode)
{
var videoId = match.Groups[1].Value;
return string.Format(@"<iframe width=""500"" height=""281"" src=""http://www.youtube-nocookie.com/embed/{0}?rel=0"" frameborder=""0"" allowfullscreen></iframe>",
videoId);
}
protected abstract string Handle(Match match, DiaryMode mode);
protected override bool Supports(DiaryMode mode)
{
return true;
}
public bool CanHandle(string source, DiaryMode mode)
{
var match = regex.Match(source);
cached = new MatchCache(source, match);
return match.Success;
}