static void InsertToken(ICollection<Inline> ic, Token t, TextRenderContext ctx)
{
switch (t.tag)
{
case TokenTypes.Hyperlink:
InsertHyperLink(ic, t);
break;
case TokenTypes.Name:
InsertMentionName(ic, t);
break;
case TokenTypes.Emotion:
InsertEmotion(ic, t);
break;
case TokenTypes.CopyedFrom:
InsertCopyedFrom(ic, t,ctx);
break;
case TokenTypes.ReplyTo:
InsertReplyto(ic, t);
break;
case TokenTypes.Topic:
{
InsertTopic(ic, t);
}
break;
case TokenTypes.Quote:
{
InsertQuote(ic, t);
}
break;
case TokenTypes.Writer:
{
InsertWriter(ic, t);
break;
}
case TokenTypes.Break:
{
InsertBreak(ic);
break;
}
//case TokenTypes.End:
//case TokenTypes.Punctuation:
//case TokenTypes.Part:
//case TokenTypes.Reserved:
default:
InsertNormal(ic, t);
break;
}
}
private static void InsertMentionName(ICollection<Inline> textblock, Token t)
{
var name = t.text;
if (string.IsNullOrEmpty(name))
return;
textblock.Add(new Run("@"));
var h = new Hyperlink(new Run(name));
//h.SetResourceReference(Control.ForegroundProperty, "MetroColorText");
textblock.Add(h);
}
private static void InsertWriter(ICollection<Inline> textblock, Token t)
{
var name = t.text;
if (string.IsNullOrEmpty(name))
return;
var run = new Run(t.text);
run.SetResourceReference(Control.ForegroundProperty, "MetroColorFeatureBrush");
textblock.Add(run);
textblock.Add(new Run("："));
}
private static void InsertEmotion(ICollection<Inline> textblock, Token t)
{
var emo = t.text.Trim();
if (string.IsNullOrEmpty(emo))
return;
textblock.Add(new Run(string.Format("[{0}]", emo)));
}
private static void InsertQuote(ICollection<Inline> textblock, Token t)
{
var q = t.text.Trim();
if (string.IsNullOrEmpty(q))
return;
textblock.Add(new Run(string.Format("“{0}”", q)));
}
private static void InsertCopyedFrom(ICollection<Inline> textblock, Token t, TextRenderContext ctx)
{
var name = t.text;
if (string.IsNullOrEmpty(name))
return;
if(!ctx.HasCopyedFromItem)
{
ctx.HasCopyedFromItem = true;
textblock.Add(new LineBreak());
}
textblock.Add(new Run("//@"));
var h = new Hyperlink(new Run(name));
//h.SetResourceReference(Control.ForegroundProperty, "MetroColorText");
textblock.Add(h);
textblock.Add(new Run("："));
}
private static void InsertTopic(ICollection<Inline> textblock, Token t)
{
var topic = t.text;
if (string.IsNullOrEmpty(topic))
return;
textblock.Add(new Run("#"));
textblock.Add(new Run(topic));
textblock.Add(new Run("#"));
}
private static Token eat_quote(string text, ref int begin, int end, char endchar)
{
var rtn = new Token {tag = TokenTypes.Quote};
Debug.Assert(is_quote(text[begin]));
++begin;
while (begin < end && text[begin] != endchar)
{
rtn.text += text[begin++];
}
if (begin == end)
rtn.text = string.Empty;
else ++begin;
rtn.flag = endchar;
return rtn;
}
public static List<Token> Parse(this string text)
{
var rtn = new List<Token>();
var begin = 0;
var end = text.Length;
var last = new Token();
while (begin < end)
{
Token t = null;
var b = begin;
var c = text[begin];
if (c > 0xdfff && c < 0xe900)//忽略自定义字符
{
++begin;
continue;
}
switch (c)
{
case '/':
t = eat_sharedfrom(text, ref b, end);
break;
case '@':
t = eat_name(text, ref b, end);
break;
case 'h':
t = eat_hyperlink(text, ref b, end);
break;
case '#':
t = eat_topic(text, ref b, end, c);
break;
case '【':
t = eat_topic(text, ref b, end, '】');
break;
case '《':
t = eat_topic(text, ref b, end, '》');
break;
case '『':
t = eat_topic(text, ref b, end, '』');
break;
case '[':
t = eat_emotion(text, ref b, end);
break;
case '回':
t = eat_replyto(text, ref b, end);
break;
case '？':
case '。':
case '!':
case '！':
case '~':
case '，':
case ',':
case '；':
case '：':
case ':':
case '.':
case '-':
t = eat_punctuation(text, ref b, end,c);
break;
case '"':
t = eat_quote(text, ref b, end, '"');
break;
case '“':
t = eat_quote(text, ref b, end, '”');
break;
case '（':
t = eat_quote(text, ref b, end, '）');
break;
case '(':
t = eat_quote(text, ref b, end, '(');
break;
case '「':
t = eat_quote(text, ref b, end, '」');
break;
}
if (t == null || (string.IsNullOrEmpty(t.text))) //没有匹配上
{
last.text += c;
++begin;
}
else
{
if (last.text.Length > 0)
{
rtn.Add(last);
last = new Token();
}
rtn.Add(t);
begin = b;
}
}
if (last.text.Length > 0)
{
rtn.Add(last);
}
return rtn;
}
private static Token eat_hyperlink(string text, ref int begin, int end)
{
var rtn = new Token { text = "", tag = TokenTypes.Hyperlink };
const string h = "http://";
var i = text.Substring(begin, (h.Length < end - begin) ? h.Length : (end - begin));
if (String.Compare(h, i, StringComparison.OrdinalIgnoreCase) == 0)
{
while (begin < end)
{
char t = text[begin];
if ((char.IsLetterOrDigit(t) && t < 128) || t == '.' || t == '/' || t == ':' || t == '&' || t == '%' ||
t == '?' || t == '_' || t == '=' || t == '#' || t == '-')
rtn.text += t;
else break;
++begin;
}
}
return rtn;
}
private static Token eat_sharedfrom(string text, ref int beg, int end)
{
var begin = beg;
var rtn = new Token { text = string.Empty, tag = TokenTypes.CopyedFrom };
if (begin + 2 < end && text[begin] == '/' && text[begin + 1] == '/' && text[begin + 2] == '@')
{
begin += 3;
while (begin < end && !char.IsWhiteSpace(text[begin]) && !is_invalid_name_char(text[begin]))
{
rtn.text += text[begin++];
}
}
if (begin + 3 < end && text[begin] == '/' && text[begin + 1] == '/' && text[begin + 2] == ' ' &&
text[begin + 3] == '@')
{
begin += 4;
while (begin < end && !char.IsWhiteSpace(text[begin]) && !is_invalid_name_char(text[begin]))
{
rtn.text += text[begin++];
}
}
if (begin < end && (text[begin] == '：' || text[begin] == ':'))
++begin;
if (rtn.text.Length > 16)
{//最多16个字
rtn.text = string.Empty;
}
if (!string.IsNullOrEmpty(rtn.text))
beg = begin;
return rtn;
}
private static Token eat_topic(string text, ref int begin, int end, char endchar)
{
var rtn = new Token { text = "", tag = TokenTypes.Topic };
++begin;
while (begin < end && text[begin] != endchar)
{
rtn.text += text[begin++];
}
if (begin == end) //cann't find #
rtn.text = "";
else ++begin;
rtn.text = rtn.text.Trim();
rtn.flag = endchar;
return rtn;
}
private static Token eat_punctuation(string text, ref int begin, int end, char punc)
{
var rtn = new Token { text = "", tag = TokenTypes.Punctuation };
while (begin < end && (text[begin].IsPunctuationExt() || char.IsWhiteSpace(text[begin])))
{
rtn.text += text[begin++];
}
rtn.flag = punc;
return rtn;
}
private static Token eat_emotion(string text, ref int begin, int end)
{
var rtn = new Token { text = "", tag = TokenTypes.Emotion };
if (text[begin] == '[')
{
++begin;
while (begin < end && text[begin] != ']')
{
rtn.text += text[begin++];
}
if (begin == end) //cann't find ]
rtn.text = "";
else ++begin;
}
return rtn;
}
//private static bool InsertName(ICollection<Inline> textblock, string name)
//{
// if (string.IsNullOrEmpty(name))
// return false;
// textblock.Add(new Hyperlink(new Run(name)));
// textblock.Add(new Run("："));
// return true;
//}
private static void InsertHyperLink(ICollection<Inline> textblock, Token token)
{
var ut = token.text;
if (string.IsNullOrEmpty(ut))
return;
if (ut.Length != token.text.Length)
textblock.Add(new Run(" "));
var run = ut.Replace(Properties.Resources.ShortUrlPrefix, string.Empty);
//create hyperlink
var h = new Hyperlink(new Run(run){FontWeight = FontWeights.SemiBold})
{
// NavigateUri = new Uri(ut,UriKind.Absolute),使用这个会直接调用到navigationservice中
Command = WeiZhiCommands.Navigate,
CommandParameter = ut,
ToolTip = ut,
};
h.ToolTipOpening +=
(s, e) =>
{
var dp =(Hyperlink) s;
if (dp.Tag != null)
return;
var mem = MemoryCache.Default;
var ui = (UrlInfo) mem.Get(ut);
if (ui == null)
return;
dp.Tag = ui;
if (!string.IsNullOrEmpty(ui.topic()))
dp.ToolTip = ui.topic() + " / " + EnumDescription.Get(ui.type);
else dp.ToolTip = ui.url_long + " / " + EnumDescription.Get(ui.type);
};
h.SetResourceReference(TextElement.ForegroundProperty, "MetroColorFeatureBrush");
textblock.Add(h);
var memc = MemoryCache.Default;
var uinfo = (UrlInfo)memc.Get(ut);
if (uinfo != null)
{
if (uinfo.type == UrlType.Video)
textblock.Add(new Run("\uE173"));
else if (uinfo.type == UrlType.Music)
textblock.Add(new Run("\u266C"));
}
else if (ut.Length != token.text.Length)
textblock.Add(new Run(" "));
}
private static void InsertNormal(ICollection<Inline> textblock, Token t)
{
if (string.IsNullOrEmpty(t.text))
return;
textblock.Add(new Run(t.text));
}
private static Token eat_name(string text, ref int begin, int end)
{
var rtn = new Token { text = "", tag = TokenTypes.Name };
const string h = "http://";
var b = begin;
++begin;
while (begin < end && !char.IsWhiteSpace(text[begin]) && !is_invalid_name_char(text[begin]))
{
if (text[begin] == 'h' && begin + h.Length < end)
{
var t = text.Substring(begin, h.Length > end - begin ? end - begin : h.Length);
if (String.Compare(t, h, StringComparison.OrdinalIgnoreCase) == 0)
break;
}
rtn.text += text[begin++];
}
if (rtn.text.Length > 16)
{
//最多16个字
rtn.text = "";
begin = b;
}
return rtn;
}
