/// <summary>
/// Attempts to parse a italic 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 italic text span, or <c>null</c> if this is not a italic text span. </returns>
internal static Common.InlineParseResult Parse(string markdown, int start, int maxEnd)
{
// Check the first char.
char startChar = markdown[start];
if (start == maxEnd || (startChar != '*' && startChar != '_'))
{
return(null);
}
// Find the end of the span. The end character (either '*' or '_') must be the same as
// the start character.
var innerStart = start + 1;
int innerEnd = Common.IndexOf(markdown, startChar, start + 1, 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 ItalicTextInline();
result.Inlines = Common.ParseInlineChildren(markdown, innerStart, innerEnd);
return(new Common.InlineParseResult(result, start, innerEnd + 1));
}
/// <summary>
/// Renders a text 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 RenderItalicRun(InlineCollection inlineCollection, ItalicTextInline element, TextElement parent, RenderContext context)
{
// Create the text run
Span italicSpan = new Span();
italicSpan.FontStyle = FontStyle.Italic;
// Render the children into the italic inline.
RenderInlineChildren(italicSpan.Inlines, element.Inlines, italicSpan, context);
// Add it to the current inlines
inlineCollection.Add(italicSpan);
}
/// <summary>
/// Attempts to parse a italic 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 italic text span, or <c>null</c> if this is not a italic text span. </returns>
internal static Common.InlineParseResult Parse(string markdown, int start, int maxEnd)
{
// Check the first char.
char startChar = markdown[start];
if (start == maxEnd || (startChar != '*' && startChar != '_'))
return null;
// Find the end of the span. The end character (either '*' or '_') must be the same as
// the start character.
var innerStart = start + 1;
int innerEnd = Common.IndexOf(markdown, startChar, start + 1, 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 ItalicTextInline();
result.Inlines = Common.ParseInlineChildren(markdown, innerStart, innerEnd);
return new Common.InlineParseResult(result, start, innerEnd + 1);
}
