/// <summary>
/// Attempts to parse a bold text span.
/// </summary>
/// <param name="markdown"> The markdown text. </param>
/// <param name="start"> The location to start parsing. </param>
/// <param name="maxEnd"> The location to stop parsing. </param>
/// <returns> A parsed bold text span, or <c>null</c> if this is not a bold text span. </returns>
internal static Common.InlineParseResult Parse(string markdown, int start, int maxEnd)
{
if (start >= maxEnd - 1)
{
return(null);
}
// Check the start sequence.
string startSequence = markdown.Substring(start, 2);
if (startSequence != "**" && startSequence != "__")
{
return(null);
}
// Find the end of the span. The end sequence (either '**' or '__') must be the same
// as the start sequence.
var innerStart = start + 2;
int innerEnd = Common.IndexOf(markdown, startSequence, innerStart, maxEnd);
if (innerEnd == -1)
{
return(null);
}
// The span must contain at least one character.
if (innerStart == innerEnd)
{
return(null);
}
// The first character inside the span must NOT be a space.
if (Common.IsWhiteSpace(markdown[innerStart]))
{
return(null);
}
// The last character inside the span must NOT be a space.
if (Common.IsWhiteSpace(markdown[innerEnd - 1]))
{
return(null);
}
// We found something!
var result = new BoldTextInline();
result.Inlines = Common.ParseInlineChildren(markdown, innerStart, innerEnd);
return(new Common.InlineParseResult(result, start, innerEnd + 2));
}
/// <summary>
/// Renders a bold run element.
/// </summary>
/// <param name="inlineCollection"> The list to add to. </param>
/// <param name="element"> The parsed inline element to render. </param>
/// <param name="parent"> The container element. </param>
/// <param name="context"> Persistent state. </param>
private void RenderBoldRun(InlineCollection inlineCollection, BoldTextInline element, TextElement parent, RenderContext context)
{
// Create the text run
Span boldSpan = new Span();
boldSpan.FontWeight = FontWeights.Bold;
// Render the children into the bold inline.
RenderInlineChildren(boldSpan.Inlines, element.Inlines, boldSpan, context);
// Add it to the current inlines
inlineCollection.Add(boldSpan);
}
/// <summary>
/// Attempts to parse a bold text span.
/// </summary>
/// <param name="markdown"> The markdown text. </param>
/// <param name="start"> The location to start parsing. </param>
/// <param name="maxEnd"> The location to stop parsing. </param>
/// <returns> A parsed bold text span, or <c>null</c> if this is not a bold text span. </returns>
internal static Common.InlineParseResult Parse(string markdown, int start, int maxEnd)
{
if (start >= maxEnd - 1)
return null;
// Check the start sequence.
string startSequence = markdown.Substring(start, 2);
if (startSequence != "**" && startSequence != "__")
return null;
// Find the end of the span. The end sequence (either '**' or '__') must be the same
// as the start sequence.
var innerStart = start + 2;
int innerEnd = Common.IndexOf(markdown, startSequence, innerStart, maxEnd);
if (innerEnd == -1)
return null;
// The span must contain at least one character.
if (innerStart == innerEnd)
return null;
// The first character inside the span must NOT be a space.
if (Common.IsWhiteSpace(markdown[innerStart]))
return null;
// The last character inside the span must NOT be a space.
if (Common.IsWhiteSpace(markdown[innerEnd - 1]))
return null;
// We found something!
var result = new BoldTextInline();
result.Inlines = Common.ParseInlineChildren(markdown, innerStart, innerEnd);
return new Common.InlineParseResult(result, start, innerEnd + 2);
}
