public TextSpan(string spanText, SourceExtent sourceExtent, ParserMode parserMode, TextSpanStyle spanStyle = TextSpanStyle.Normal)
: base(parserMode == ParserMode.Full
? MarkdownParser.UnwindMarkdownCharsEscaping(spanText.Trim())
: spanText,
sourceExtent,
parserMode)
{
this.Style = spanStyle;
}
public HelpSchemaException(SourceExtent extent, string message)
: base(
String.Format(
"{0}:{1} '{2}'\n {3}",
extent.Line.Start,
extent.Column.Start,
GetSnippet(extent.OriginalText),
message)
)
{
}
public HyperlinkSpan(string spanText, string uriText, SourceExtent sourceExtent, ParserMode parserMode)
: base(spanText, sourceExtent, parserMode)
{
this.Uri = uriText;
}
public ParagraphSpan(string spanText, SourceExtent sourceExtent)
{
this.Text = spanText;
this.SourceExtent = sourceExtent;
}
public ParagraphSpan(string spanText, SourceExtent sourceExtent)
{
this.Text = spanText;
this.SourceExtent = sourceExtent;
}
public HyperlinkSpan(string spanText, string uriText, SourceExtent sourceExtent)
: base(spanText, sourceExtent)
{
this.Uri = uriText;
}
public HyperlinkSpan(string spanText, string uriText, SourceExtent sourceExtent)
: base(spanText, sourceExtent)
{
this.Uri = uriText;
}
private void CreateHashHeader2(Match regexMatch, SourceExtent sourceExtent)
{
this.FinishParagraph();
_currentDocument.AddChildNode(
new HeadingNode(
regexMatch.Groups[3].Value,
regexMatch.Groups[2].Value.Length,
sourceExtent));
}
private void CreateHardBreakSpan(Match regexMatch, SourceExtent sourceExtent)
{
this.StartParagraph();
_currentParagraphSpans.Add(
new HardBreakSpan(
sourceExtent));
}
private void CreateSoftBreakSpan(Match regexMatch, SourceExtent sourceExtent)
{
// Don't create a span?
}
private void CreateHyperlinkSpan(Match regexMatch, SourceExtent sourceExtent)
{
this.StartParagraph();
_currentParagraphSpans.Add(
new HyperlinkSpan(
regexMatch.Groups[1].Value,
regexMatch.Groups[2].Value,
sourceExtent));
}
private void CreateBoldSpan(Match regexMatch, SourceExtent sourceExtent)
{
this.StartParagraph();
_currentParagraphSpans.Add(
new TextSpan(
regexMatch.Groups[1].Value,
sourceExtent,
TextSpanStyle.Bold));
}
private void CreateNormalSpan(string spanText, SourceExtent sourceExtent)
{
this.StartParagraph();
// TODO: Replace all newlines with spaces? We
// might want to add line breaks only when the
// user has intentionally typed a hard break string
// ( \r\n)
// If the span is merely whitespace, don't add it
if (!string.IsNullOrWhiteSpace(spanText))
{
_currentParagraphSpans.Add(
new TextSpan(
spanText,
sourceExtent));
}
}
private void CreateTickCodeBlock(Match regexMatch, SourceExtent sourceExtent)
{
this.FinishParagraph();
_currentDocument.AddChildNode(
new CodeBlockNode(
regexMatch.Groups[2].Value,
sourceExtent));
}
private void CreateUnderlineHeader(Match regexMatch, SourceExtent sourceExtent)
{
this.FinishParagraph();
int headerLevel =
regexMatch.Groups[2].Value[0] == '=' ?
1 : 2;
_currentDocument.AddChildNode(
new HeadingNode(
regexMatch.Groups[1].Value,
headerLevel,
sourceExtent));
}
private void CreateParagraph(Match regexMatch, SourceExtent sourceExtent)
{
this.FinishParagraph();
this.StartParagraph();
}
public ParagraphSpan(string spanText, SourceExtent sourceExtent, ParserMode parserMode)
{
this.Text = spanText;
this.SourceExtent = sourceExtent;
this.ParserMode = parserMode;
}
private void ParseDocument()
{
// This algorithm works by applying each Markdown pattern to the
// document string starting at startOffset and finding which match
// is nearest to the startOffset. If the match is at a position
// greater than startOffset, the starting part of the string is
// then treated as a normal text span before the matched section is
// converted into its node type.
int startOffset = 0;
int currentLineNumber = 0;
int currentColumnNumber = 0;
int lastOffset = 0;
while (startOffset < _documentText.Length)
{
// progress reporting
if (_progressCallback != null)
{
if (lastOffset + _reportByteCount < startOffset)
{
_progressCallback(startOffset, _documentText.Length);
lastOffset = startOffset;
}
}
// Try each of the patterns to find a match
Match firstMatch = null;
MarkdownPattern firstMatchedPattern = null;
foreach (MarkdownPattern markdownPattern in _markdownPatterns)
{
Match regexMatch = null;
// This is a dirty hack to tell avoid hash_headers, if it's not a beginning of a line
if (markdownPattern.PatternName == "hash_header")
{
if (_documentText[startOffset] != '#')
{
continue;
}
}
if (markdownPattern.TryMatchString(_documentText, startOffset, out regexMatch))
{
if (firstMatch == null || firstMatch.Index > regexMatch.Index)
{
firstMatch = regexMatch;
firstMatchedPattern = markdownPattern;
if (regexMatch.Index == startOffset)
{
// no reason to continue
break;
}
}
}
}
if (firstMatch != null)
{
// Gather all text before this point into a paragraph
if (firstMatch.Index > 0)
{
this.StartParagraph();
// Get the extent of the span text
SourceExtent spanExtent =
new SourceExtent(
_documentText,
startOffset,
firstMatch.Index,
currentLineNumber,
currentColumnNumber);
this.CreateNormalSpan(
spanExtent.OriginalText,
spanExtent);
// Make sure the line and column number are updated
// before calculating the position of the match
currentLineNumber = spanExtent.Line.End;
currentColumnNumber = spanExtent.Column.End;
}
// Count the newlines in the entire span
SourceExtent matchExtent =
new SourceExtent(
_documentText,
firstMatch.Index,
firstMatch.Index + firstMatch.Length,
currentLineNumber,
currentColumnNumber);
// Run the match action for the pattern
firstMatchedPattern.MatchAction(firstMatch, matchExtent);
// Calculate the next offset, line, and column
startOffset = firstMatch.Index + firstMatch.Length;
currentLineNumber = matchExtent.Line.End;
currentColumnNumber = matchExtent.Column.End;
}
else
{
// Get the extent containing the remaining text
SourceExtent spanExtent =
new SourceExtent(
_documentText,
startOffset,
_documentText.Length,
currentLineNumber,
currentColumnNumber);
// If no match found, treat the rest of the text as a span
this.CreateNormalSpan(
spanExtent.OriginalText,
spanExtent);
startOffset = _documentText.Length;
}
}
// Finish any remaining paragraph
this.FinishParagraph();
}
