private Inline MatchOne(IReadOnlyList <MarkdownToken> tokens, out int consumedCount)
{
int totalMatchCount;
IReadOnlyList <MarkdownToken> match;
if ((match = MatchOneStar(tokens, out totalMatchCount,
TokenPattern.Required(MarkdownTokenType.Star, MarkdownTokenType.Star),
TokenPattern.Optional(MarkdownTokenType.Star, MarkdownTokenType.Star))) != null)
{
var children = MatchAll(match);
var element = new Bold();
element.Inlines.AddRange(children);
consumedCount = 4 + match.Count;
return(element);
}
if ((match = MatchOneStar(tokens, out totalMatchCount,
TokenPattern.Required(MarkdownTokenType.Underscore, MarkdownTokenType.Underscore),
TokenPattern.Optional(MarkdownTokenType.Underscore, MarkdownTokenType.Underscore))) != null)
{
var children = MatchAll(match);
var element = new Bold();
element.Inlines.AddRange(children);
consumedCount = 4 + match.Count;
return(element);
}
if ((match = MatchOneStar(tokens, out totalMatchCount,
TokenPattern.Required(MarkdownTokenType.Tilde, MarkdownTokenType.Tilde),
TokenPattern.Optional(MarkdownTokenType.Tilde, MarkdownTokenType.Tilde))) != null)
{
var children = MatchAll(match);
var element = new Span();
var decoration = new TextDecoration {
Location = TextDecorationLocation.Strikethrough
};
decoration.Freeze();
element.TextDecorations.Add(decoration);
element.Inlines.AddRange(children);
consumedCount = 4 + match.Count;
return(element);
}
if ((match = MatchOneStar(tokens, out totalMatchCount,
TokenPattern.Required(MarkdownTokenType.Star),
TokenPattern.Optional(MarkdownTokenType.Star))) != null)
{
var children = MatchAll(match);
var element = new Italic();
element.Inlines.AddRange(children);
consumedCount = 2 + match.Count;
return(element);
}
if ((match = MatchOneStar(tokens, out totalMatchCount,
TokenPattern.Required(MarkdownTokenType.Underscore),
TokenPattern.Optional(MarkdownTokenType.Underscore))) != null)
{
var children = MatchAll(match);
var element = new Italic();
element.Inlines.AddRange(children);
consumedCount = 2 + match.Count;
return(element);
}
if (MatchTwoStar(tokens, out totalMatchCount,
match1: out var match1,
match2: out var match2,
start1: TokenPattern.Required(MarkdownTokenType.SquareBracketOpen),
end1: TokenPattern.Required(MarkdownTokenType.SquareBracketClose),
start2: TokenPattern.Required(MarkdownTokenType.BracketOpen),
end2: TokenPattern.Required(MarkdownTokenType.BracketClose)))
{
consumedCount = totalMatchCount;
var uri = new Uri(ToString(match2));
var hyperlink = new Hyperlink
{
NavigateUri = uri
};
hyperlink.RequestNavigate += (a, b) => HyperlinkRun.NavigateTo(uri, null, null);
hyperlink.Inlines.AddRange(MatchAll(match1));
return(hyperlink);
}
if ((match = MatchOneStar(tokens, out totalMatchCount,
start: TokenPattern.Required(MarkdownTokenType.LineBreak))) != null)
{
consumedCount = 1;
return(new LineBreak());
}
if ((match = MatchOneStar(tokens, out totalMatchCount,
start: TokenPattern.Required(MarkdownTokenType.Whitespace))) != null)
{
consumedCount = 1;
return(new Run(" "));
}
var token = tokens[index : 0];
consumedCount = 1;
return(new Run(token.Text));
}
private Inline MatchOne(IReadOnlyList <MarkdownToken> tokens, out int consumedCount)
{
int totalMatchCount;
IReadOnlyList <MarkdownToken> match;
if ((match = Match(tokens, out totalMatchCount,
TokenPattern.Required(MarkdownTokenType.Star, MarkdownTokenType.Star),
TokenPattern.Optional(MarkdownTokenType.Star, MarkdownTokenType.Star))) != null)
{
var children = MatchAll(match);
var element = new Bold();
element.Inlines.AddRange(children);
consumedCount = 4 + match.Count;
return(element);
}
if ((match = Match(tokens, out totalMatchCount,
TokenPattern.Required(MarkdownTokenType.Underscore, MarkdownTokenType.Underscore),
TokenPattern.Optional(MarkdownTokenType.Underscore, MarkdownTokenType.Underscore))) != null)
{
var children = MatchAll(match);
var element = new Bold();
element.Inlines.AddRange(children);
consumedCount = 4 + match.Count;
return(element);
}
if ((match = Match(tokens, out totalMatchCount,
TokenPattern.Required(MarkdownTokenType.Tilde, MarkdownTokenType.Tilde),
TokenPattern.Optional(MarkdownTokenType.Tilde, MarkdownTokenType.Tilde))) != null)
{
var children = MatchAll(match);
var element = new Span();
var decoration = new TextDecoration {
Location = TextDecorationLocation.Strikethrough
};
decoration.Freeze();
element.TextDecorations.Add(decoration);
element.Inlines.AddRange(children);
consumedCount = 4 + match.Count;
return(element);
}
if ((match = Match(tokens, out totalMatchCount,
TokenPattern.Required(MarkdownTokenType.Star),
TokenPattern.Optional(MarkdownTokenType.Star))) != null)
{
var children = MatchAll(match);
var element = new Italic();
element.Inlines.AddRange(children);
consumedCount = 2 + match.Count;
return(element);
}
if ((match = Match(tokens, out totalMatchCount,
TokenPattern.Required(MarkdownTokenType.Underscore),
TokenPattern.Optional(MarkdownTokenType.Underscore))) != null)
{
var children = MatchAll(match);
var element = new Italic();
element.Inlines.AddRange(children);
consumedCount = 2 + match.Count;
return(element);
}
if ((match = Match(tokens, out totalMatchCount,
start: TokenPattern.Required(MarkdownTokenType.LineBreak))) != null)
{
consumedCount = 1;
return(new LineBreak());
}
if ((match = Match(tokens, out totalMatchCount,
start: TokenPattern.Required(MarkdownTokenType.Whitespace))) != null)
{
consumedCount = 1;
return(new Run(" "));
}
var token = tokens[index : 0];
consumedCount = 1;
return(new Run(token.Text));
}
public ITextLayout CreateLaytout(string str, SyntaxInfo[] syntaxCollection, IEnumerable <Marker> MarkerRanges, IEnumerable <Selection> SelectRanges, double wrapwidth)
{
TextLayout layout;
if (wrapwidth == LineToIndexTable.NONE_BREAK_LINE)
{
layout = new TextLayout(str, this.FontFamily, this.FontSize, Brushes[this.Foreground], this.TextArea.Width);
layout.TextWarpping = TextWrapping.NoWrap;
}
else
{
layout = new TextLayout(str, this.FontFamily, this.FontSize, Brushes[this.Foreground], wrapwidth);
layout.TextWarpping = TextWrapping.Wrap;
}
layout.FlowDirection = this.RightToLeft ? FlowDirection.RightToLeft : FlowDirection.LeftToRight;
if (syntaxCollection != null)
{
foreach (SyntaxInfo s in syntaxCollection)
{
Brush brush = this.Brushes[this.Foreground];
switch (s.type)
{
case TokenType.Comment:
brush = this.Brushes[this.Comment];
break;
case TokenType.Keyword1:
brush = this.Brushes[this.Keyword1];
break;
case TokenType.Keyword2:
brush = this.Brushes[this.Keyword2];
break;
case TokenType.Literal:
brush = this.Brushes[this.Literal];
break;
}
TextEffect effect = new TextEffect(null, brush, null, s.index, s.length);
effect.Freeze();
layout.SetTextEffect(effect);
}
}
if (MarkerRanges != null)
{
foreach (Marker m in MarkerRanges)
{
if (m.start == -1 || m.length == 0)
{
continue;
}
Brush brush;
if (m.hilight == HilightType.Url)
{
brush = this.Brushes[this.Url];
TextEffect effect = new TextEffect(null, brush, null, m.start, m.length);
effect.Freeze();
layout.SetTextEffect(effect);
}
else
{
System.Windows.Media.Color color = new System.Windows.Media.Color();
color.A = m.color.A;
color.R = m.color.R;
color.G = m.color.G;
color.B = m.color.B;
brush = this.Brushes[color];
}
Pen pen = this.Pens.Get(brush, m.hilight);
TextDecorationCollection collection = new TextDecorationCollection();
TextDecoration decoration = new TextDecoration();
decoration.Pen = pen;
decoration.Location = TextDecorationLocation.Underline;
decoration.Freeze();
collection.Add(decoration);
if (m.hilight == HilightType.Squiggle)
{
layout.SetSquilleLine(m.start, m.length, collection);
}
else
{
layout.SetTextDecoration(m.start, m.length, collection);
}
}
}
return(layout);
}