public static void Parse(Md2MlEngine engine, string mdText)
{
var lineAndPattern = new List <KeyValuePair <ParaPattern, string[]> >();
var lines = mdText.Split('\n');
foreach (var line in lines)
{
lineAndPattern.Add(PatternMatcher.GetParagraphType(line));
}
bool OrderedList = false;
bool UnorderedList = false;
bool Table = false;
List <string> BulletItems = new List <string>();
List <string> NumberItems = new List <string>();
List <string> TableData = new List <string>();
foreach (var line in lineAndPattern)
{
Paragraph para;
switch (line.Key)
{
case ParaPattern.OrderedList:
if (Table)
{
ProcessTable(engine, TableData); Table = false;
}
if (UnorderedList)
{
ProcessBullets(engine, BulletItems, false); UnorderedList = false;
}
OrderedList = true;
NumberItems.Add(line.Value[1]);
break;
case ParaPattern.UnorderedList:
if (Table)
{
ProcessTable(engine, TableData); Table = false;
}
if (OrderedList)
{
ProcessBullets(engine, NumberItems, true); OrderedList = false;
}
UnorderedList = true;
BulletItems.Add(line.Value[1]);
break;
case ParaPattern.Image:
if (Table)
{
ProcessTable(engine, TableData); Table = false;
}
if (OrderedList || UnorderedList)
{
ProcessBullets(engine, OrderedList ? NumberItems : BulletItems, OrderedList); OrderedList = false; UnorderedList = false;
}
para = engine.CreateParagraph();
if (line.Value[2].StartsWith("http://") || line.Value[2].StartsWith("https://"))
{
engine.AddImage(new System.Net.WebClient().OpenRead(line.Value[2]));
}
else
{
engine.AddImage(System.IO.File.OpenRead(line.Value[2]));
}
break;
case ParaPattern.Table:
if (OrderedList || UnorderedList)
{
ProcessBullets(engine, OrderedList ? NumberItems : BulletItems, OrderedList); OrderedList = false; UnorderedList = false;
}
Table = true;
TableData.Add(line.Value[1]);
break;
case ParaPattern.CodeBlock:
if (Table)
{
ProcessTable(engine, TableData); Table = false;
}
if (OrderedList || UnorderedList)
{
ProcessBullets(engine, OrderedList ? NumberItems : BulletItems, OrderedList); OrderedList = false; UnorderedList = false;
}
para = engine.CreateParagraph(new ParaProperties()
{
StyleName = "CodeBlock"
});
engine.WriteText(para, line.Value[1]);
break;
case ParaPattern.Heading1:
if (Table)
{
ProcessTable(engine, TableData); Table = false;
}
if (OrderedList || UnorderedList)
{
ProcessBullets(engine, OrderedList ? NumberItems : BulletItems, OrderedList); OrderedList = false; UnorderedList = false;
}
para = engine.CreateParagraph(new ParaProperties()
{
StyleName = "Heading1"
});
engine.WriteText(para, line.Value[1]);
break;
case ParaPattern.Heading2:
if (Table)
{
ProcessTable(engine, TableData); Table = false;
}
if (OrderedList || UnorderedList)
{
ProcessBullets(engine, OrderedList ? NumberItems : BulletItems, OrderedList); OrderedList = false; UnorderedList = false;
}
para = engine.CreateParagraph(new ParaProperties()
{
StyleName = "Heading2"
});
engine.WriteText(para, line.Value[1]);
break;
case ParaPattern.Heading3:
if (Table)
{
ProcessTable(engine, TableData); Table = false;
}
if (OrderedList || UnorderedList)
{
ProcessBullets(engine, OrderedList ? NumberItems : BulletItems, OrderedList); OrderedList = false; UnorderedList = false;
}
para = engine.CreateParagraph(new ParaProperties()
{
StyleName = "Heading3"
});
engine.WriteText(para, line.Value[1]);
break;
case ParaPattern.Quote:
if (Table)
{
ProcessTable(engine, TableData); Table = false;
}
if (OrderedList || UnorderedList)
{
ProcessBullets(engine, OrderedList ? NumberItems : BulletItems, OrderedList); OrderedList = false; UnorderedList = false;
}
para = engine.CreateParagraph(new ParaProperties()
{
StyleName = "Quote"
});
engine.WriteText(para, line.Value[1]);
break;
case ParaPattern.CommanBlock:
default:
if (Table)
{
ProcessTable(engine, TableData); Table = false;
}
if (OrderedList || UnorderedList)
{
ProcessBullets(engine, OrderedList ? NumberItems : BulletItems, OrderedList); OrderedList = false; UnorderedList = false;
}
para = engine.CreateParagraph();
FormatText(engine, para, line.Value[1], new FontProperties());
//core.WriteText(para, line.Value[1]);
break;
}
}
if (Table)
{
ProcessTable(engine, TableData); Table = false;
}
if (OrderedList || UnorderedList)
{
ProcessBullets(engine, OrderedList ? NumberItems : BulletItems, OrderedList); OrderedList = false; UnorderedList = false;
}
}
/// <summary>
/// Parse the content, and detect all real lines breaks.
/// In fact, within markdown it is possible to write a unique paragraph, with line breaks.
/// If there is not a double space before the line break, it's the same paragraph, and the line break is not interpreted as is.
///
/// So in this parsing method, cut the content by "block" with same nature.
/// 1| Detect the paragraph type by the start of the line
/// 2| Process the content by its type
/// 3| Then remove the processed content, and continue to parse the next content
///
/// A block is detected by a <see cref="ParaPattern"/> which have an associated regex.
///
/// </summary>
/// <param name="engine">Describe an openXML object by code</param>
/// <param name="mdText">The markdown text to parse</param>
internal static void Parse(Md2MlEngine engine, string mdText)
{
while (!string.IsNullOrEmpty(mdText))
{
var firstLine = GetFirstLine(mdText);
var matchedPattern = PatternMatcher.GetMarkdownMatch(firstLine);
Paragraph para;
(int counter, string textBlock)rebuildText = default;
switch (matchedPattern.Key)
{
case ParaPattern.InfiniteHeading:
string titleChars = matchedPattern.Value.Groups[1].Value;
int titleLvl = titleChars.Count(c => c == '#');
titleLvl = titleLvl <= 9 ? titleLvl : 9;
para = engine.CreateParagraph(new ParaProperties()
{
StyleName = string.Concat("Heading", titleLvl.ToString())
});
engine.WriteText(para, matchedPattern.Value.Groups[2].Value);
mdText = DeleteLines(mdText);
continue;
case ParaPattern.Image:
var link = matchedPattern.Value.Groups[2].Value;
if (link.StartsWith("http://") || link.StartsWith("https://"))
{
engine.AddImage(new System.Net.WebClient().OpenRead(link));
}
else
{
engine.AddImage(ConvertRelativeToAbsolutePath(link, engine.GetFileDirectory()));
}
mdText = DeleteLines(mdText);
continue;
case ParaPattern.Table:
//case ParaPattern.TableHeaderSeparation:
rebuildText = BuildWithoutBreakingLines(mdText, ParaPattern.Table);
ProcessTable(engine, rebuildText.textBlock);
mdText = DeleteLines(mdText, rebuildText.counter);
continue;
case ParaPattern.OrderedList:
case ParaPattern.UnorderedList:
// TODO : Ordered list can contain unordered items inside and vice versa
rebuildText = BuildWithoutBreakingLines(mdText, ParaPattern.OrderedList);
ProcessBullets(engine, rebuildText.textBlock);
mdText = DeleteLines(mdText, rebuildText.counter);
continue;
case ParaPattern.CodeBlock:
// TODO : Improve the rendering - not a priority for my needs
rebuildText = BuildWithoutBreakingLines(mdText, ParaPattern.CodeBlock);
para = engine.CreateParagraph(new ParaProperties()
{
StyleName = DocStyles.CodeBlock.ToDescriptionString()
});
FormatText(engine, para, rebuildText.textBlock, new StyleProperties());
mdText = DeleteLines(mdText, rebuildText.counter);
continue;
case ParaPattern.Quote:
// Markdown supports nested quotes, but word does not
// So whatever, put the "nested" paragraph in the same quote
rebuildText = BuildWithoutBreakingLines(mdText, ParaPattern.Quote);
para = engine.CreateParagraph(new ParaProperties()
{
StyleName = DocStyles.Quote.ToDescriptionString()
});
foreach (var text in Regex.Split(rebuildText.textBlock, "\r\n|\r|\n"))
{
para.AppendChild(new Break());
FormatText(engine, para, text, new StyleProperties());
}
mdText = DeleteLines(mdText, rebuildText.counter);
continue;
case ParaPattern.AnyChar:
default:
rebuildText = BuildWithoutBreakingLines(mdText, matchedPattern.Key);
para = engine.CreateParagraph();
FormatText(engine, para, rebuildText.textBlock, new StyleProperties());
// engine.WriteText(para, text.textBlock);
mdText = DeleteLines(mdText, rebuildText.counter);
continue;
}
}
}
