public string ConvertTreeToHtml(TextTree textTree)
{
var text = new StringBuilder();
if (textTree.IsComplete)
{
text.Append("<");
text.Append(DecodeTag[textTree.Tag]);
text.Append(">");
}
foreach (var child in textTree.Children)
{
if (child is string)
{
text.Append(child);
}
else
{
var taggedNode = child as TextTree;
// ReSharper disable once PossibleNullReferenceException
if (!taggedNode.IsComplete)
{
text.Append(taggedNode.Tag == Tag.Em ? "_" : "__");
}
text.Append(ConvertTreeToHtml(taggedNode));
}
}
if (textTree.IsComplete)
{
text.Append("</");
text.Append(DecodeTag[textTree.Tag]);
text.Append(">");
}
return(text.ToString());
}
public string ConvertTreeToHtml(TextTree textTree)
{
var text = new StringBuilder();
if (textTree.IsComplete)
{
text.Append("<");
text.Append(DecodeTag[textTree.Tag]);
text.Append(">");
}
foreach (var child in textTree.Children)
{
if (child is string)
text.Append(child);
else
{
var taggedNode = child as TextTree;
// ReSharper disable once PossibleNullReferenceException
if (!taggedNode.IsComplete)
{
text.Append(taggedNode.Tag == Tag.Em ? "_" : "__");
}
text.Append(ConvertTreeToHtml(taggedNode));
}
}
if (textTree.IsComplete)
{
text.Append("</");
text.Append(DecodeTag[textTree.Tag]);
text.Append(">");
}
return text.ToString();
}
public void TreeWithTagInTag_ParseCorrectly()
{
var text = @"__b _`a`_ c__";
var expected = new TextTree();
var codeTag = new TextTree()
{
IsComplete = true, Tag = Tag.Code
};
var emTag = new TextTree()
{
IsComplete = true, Tag = Tag.Em
};
var strongTag = new TextTree()
{
IsComplete = true, Tag = Tag.Strong
};
codeTag.AddChild("a");
emTag.AddChild("");
emTag.AddChild(codeTag);
emTag.AddChild("");
strongTag.AddChild("b ");
strongTag.AddChild(emTag);
strongTag.AddChild(" c");
expected.AddChild("");
expected.AddChild(strongTag);
expected.AddChild("");
CompareMarkDownTextAndTree(expected, text);
}
public void DeepTree_ParseCorrectly()
{
var tree = new TextTree();
var codeTag = new TextTree()
{
IsComplete = true, Tag = Tag.Code
};
var emTag = new TextTree()
{
IsComplete = true, Tag = Tag.Em
};
var strongTag = new TextTree()
{
IsComplete = true, Tag = Tag.Strong
};
codeTag.AddChild("a");
emTag.AddChild("");
emTag.AddChild(codeTag);
emTag.AddChild("");
strongTag.AddChild("b ");
strongTag.AddChild(emTag);
strongTag.AddChild(" c");
tree.AddChild("");
tree.AddChild(strongTag);
tree.AddChild("");
var expected = "<strong>b <em><code>a</code></em> c</strong>";
var actual = MarkDownProcessor.ConvertTreeToHtml(tree);
CollectionAssert.AreEqual(expected, actual);
}
private void ParseBackQuote()
{
if (codeIndices.Contains(index))
{
var node = new TextTree()
{
Tag = Tag.Code, IsComplete = true
};
parsingStack.Push(textStorage.ToString());
textStorage.Clear();
index++;
while (text[index] != '`')
{
textStorage.Append(text[index]);
index++;
}
node.AddChild(textStorage.ToString());
textStorage.Clear();
parsingStack.Push(node);
}
else
{
textStorage.Append('`');
}
}
private void ConstructNodeAndPushBackToStack(Tag tag)
{
var node = new TextTree {
Tag = tag, IsComplete = true
};
while (parsingStack.Count > 0)
{
object curNode = parsingStack.Pop();
if (curNode is string)
{
node.AddChild(curNode);
}
else
{
var castedNode = curNode as TextTree;
// ReSharper disable once PossibleNullReferenceException
if (castedNode.Tag == tag && !castedNode.IsComplete)
{
break;
}
if (castedNode.Tag == Tag.Em && !castedNode.IsComplete)
{
lowLineIndex = -1;
}
if (castedNode.Tag == Tag.Strong && !castedNode.IsComplete)
{
doubleLowLineIndex = -1;
}
node.AddChild(castedNode);
}
}
node.ReverseChildren();
parsingStack.Push(node);
}
public void ClosingTagAfterDigit_IsNotATag()
{
var text = @"abc__5";
var expected = new TextTree();
expected.AddChild("abc__5");
CompareMarkDownTextAndTree(expected, text);
}
public void SimpleTextWithEscapeSymbols_ParseEscapeSymbolCorrectly()
{
var text = @"a\\b\c";
var expected = new TextTree();
expected.AddChild(@"a\b\c");
CompareMarkDownTextAndTree(expected, text);
}
public void SimpleText_GetSingleTextNode()
{
var text = @"abc";
var expected = new TextTree();
expected.AddChild("abc");
CompareMarkDownTextAndTree(expected, text);
}
public void OpeningTagAfterDigit_IsNotATag()
{
var text = @"4_abc";
var expected = new TextTree();
expected.AddChild("4_abc");
CompareMarkDownTextAndTree(expected, text);
}
public void SimpleTextTree_GetSimpleText()
{
var tree = new TextTree() { IsComplete = true, Tag = Tag.Paragraph };
tree.AddChild("abc");
var expected = "<p>abc</p>";
var actual = MarkDownProcessor.ConvertTreeToHtml(tree);
CollectionAssert.AreEqual(expected, actual);
}
public void TextWithAngleBrackets_ParsedCorrectly()
{
var text = @"\<code\>";
var expected = new TextTree();
expected.AddChild("<code>");
CompareMarkDownTextAndTree(expected, text);
}
public void TagSymbolWithoutPair_StayAsText()
{
var tree = new TextTree() { IsComplete = true, Tag = Tag.Paragraph };
tree.AddChild("abc");
tree.AddChild(new TextTree() { Tag = Tag.Em });
var expected = "<p>abc_</p>";
var actual = MarkDownProcessor.ConvertTreeToHtml(tree);
CollectionAssert.AreEqual(expected, actual);
}
public void SimpleTextTree_GetSimpleText()
{
var tree = new TextTree()
{
IsComplete = true, Tag = Tag.Paragraph
};
tree.AddChild("abc");
var expected = "<p>abc</p>";
var actual = MarkDownProcessor.ConvertTreeToHtml(tree);
CollectionAssert.AreEqual(expected, actual);
}
public void OpeningTagAfterNotDigitAndNumber_IsATag()
{
var text = @"$_abc";
var expected = new TextTree();
expected.AddChild("$");
var emNode = new TextTree()
{
Tag = Tag.Em
};
expected.AddChild(emNode);
expected.AddChild("abc");
CompareMarkDownTextAndTree(expected, text);
}
public void EscapeSymbolsBeforeTags_EscapeSymbolsEscapeTags()
{
var text = @"\_a b_ _\_c__ d";
var expected = new TextTree();
expected.AddChild(@"_a b_ ");
var emNode = new TextTree()
{
Tag = Tag.Em
};
expected.AddChild(emNode);
expected.AddChild(@"_c__ d");
CompareMarkDownTextAndTree(expected, text);
}
public void TextWithCodeTag_ParseTagCode()
{
var text = @"a`b`";
var expected = new TextTree();
expected.AddChild(@"a");
var codeTag = new TextTree()
{
IsComplete = true, Tag = Tag.Code
};
codeTag.AddChild(@"b");
expected.AddChild(codeTag);
expected.AddChild("");
CompareMarkDownTextAndTree(expected, text);
}
public void TextWithEscapeInsideCodeTag_DontParseEscapeSymbol()
{
var text = @"a`b\`";
var expected = new TextTree();
expected.AddChild(@"a");
var codeTag = new TextTree()
{
IsComplete = true, Tag = Tag.Code
};
codeTag.AddChild(@"b\");
expected.AddChild(codeTag);
expected.AddChild("");
CompareMarkDownTextAndTree(expected, text);
}
public void TagSymbolWithoutPair_StayAsText()
{
var tree = new TextTree()
{
IsComplete = true, Tag = Tag.Paragraph
};
tree.AddChild("abc");
tree.AddChild(new TextTree()
{
Tag = Tag.Em
});
var expected = "<p>abc_</p>";
var actual = MarkDownProcessor.ConvertTreeToHtml(tree);
CollectionAssert.AreEqual(expected, actual);
}
public void DeepTree_ParseCorrectly()
{
var tree = new TextTree();
var codeTag = new TextTree() { IsComplete = true, Tag = Tag.Code };
var emTag = new TextTree() { IsComplete = true, Tag = Tag.Em };
var strongTag = new TextTree() { IsComplete = true, Tag = Tag.Strong };
codeTag.AddChild("a");
emTag.AddChild("");
emTag.AddChild(codeTag);
emTag.AddChild("");
strongTag.AddChild("b ");
strongTag.AddChild(emTag);
strongTag.AddChild(" c");
tree.AddChild("");
tree.AddChild(strongTag);
tree.AddChild("");
var expected = "<strong>b <em><code>a</code></em> c</strong>";
var actual = MarkDownProcessor.ConvertTreeToHtml(tree);
CollectionAssert.AreEqual(expected, actual);
}
public void DifferentTagsIntersect_TakeFirstTag()
{
var text = @"a _a __b_ c__";
var expected = new TextTree();
expected.AddChild(@"a ");
var emTag = new TextTree()
{
IsComplete = true, Tag = Tag.Em
};
var incompleteStrongTag = new TextTree()
{
Tag = Tag.Strong
};
emTag.AddChild(@"a ");
emTag.AddChild(incompleteStrongTag);
emTag.AddChild("b");
expected.AddChild(emTag);
expected.AddChild(" c__");
CompareMarkDownTextAndTree(expected, text);
}
public void DifferentTagsIntersect_TakeFirstTag()
{
var text = @"a _a __b_ c__";
var expected = new TextTree();
expected.AddChild(@"a ");
var emTag = new TextTree() { IsComplete = true, Tag = Tag.Em };
var incompleteStrongTag = new TextTree() { Tag = Tag.Strong };
emTag.AddChild(@"a ");
emTag.AddChild(incompleteStrongTag);
emTag.AddChild("b");
expected.AddChild(emTag);
expected.AddChild(" c__");
CompareMarkDownTextAndTree(expected, text);
}
public void OpeningTagAfterDigit_IsNotATag()
{
var text = @"4_abc";
var expected = new TextTree();
expected.AddChild("4_abc");
CompareMarkDownTextAndTree(expected, text);
}
public void OpeningTagAfterNotDigitAndNumber_IsATag()
{
var text = @"$_abc";
var expected = new TextTree();
expected.AddChild("$");
var emNode = new TextTree() { Tag = Tag.Em };
expected.AddChild(emNode);
expected.AddChild("abc");
CompareMarkDownTextAndTree(expected, text);
}
void CompareMarkDownTextAndTree(TextTree expected, string text)
{
var actual = new TreeBuilder().GetTree(text);
CollectionAssert.AreEqual(expected.Children, actual.Children);
}
public bool Equals(TextTree anotherTextTree)
{
return(Children.SequenceEqual(anotherTextTree.Children) && Tag == anotherTextTree.Tag &&
IsComplete == anotherTextTree.IsComplete);
}
public void SimpleTextWithEscapeSymbols_ParseEscapeSymbolCorrectly()
{
var text = @"a\\b\c";
var expected = new TextTree();
expected.AddChild(@"a\b\c");
CompareMarkDownTextAndTree(expected, text);
}
public void SimpleText_GetSingleTextNode()
{
var text = @"abc";
var expected = new TextTree();
expected.AddChild("abc");
CompareMarkDownTextAndTree(expected, text);
}
public bool Equals(TextTree anotherTextTree)
{
return Children.SequenceEqual(anotherTextTree.Children) && Tag == anotherTextTree.Tag
&& IsComplete == anotherTextTree.IsComplete;
}
public void TextWithCodeTag_ParseTagCode()
{
var text = @"a`b`";
var expected = new TextTree();
expected.AddChild(@"a");
var codeTag = new TextTree() { IsComplete = true, Tag = Tag.Code };
codeTag.AddChild(@"b");
expected.AddChild(codeTag);
expected.AddChild("");
CompareMarkDownTextAndTree(expected, text);
}
public void TextWithAngleBrackets_ParsedCorrectly()
{
var text = @"\<code\>";
var expected = new TextTree();
expected.AddChild("<code>");
CompareMarkDownTextAndTree(expected, text);
}
public void TextWithEscapeInsideCodeTag_DontParseEscapeSymbol()
{
var text = @"a`b\`";
var expected = new TextTree();
expected.AddChild(@"a");
var codeTag = new TextTree() { IsComplete = true, Tag = Tag.Code };
codeTag.AddChild(@"b\");
expected.AddChild(codeTag);
expected.AddChild("");
CompareMarkDownTextAndTree(expected, text);
}
public void TreeWithTagInTag_ParseCorrectly()
{
var text = @"__b _`a`_ c__";
var expected = new TextTree();
var codeTag = new TextTree() { IsComplete = true, Tag = Tag.Code };
var emTag = new TextTree() { IsComplete = true, Tag = Tag.Em };
var strongTag = new TextTree() { IsComplete = true, Tag = Tag.Strong };
codeTag.AddChild("a");
emTag.AddChild("");
emTag.AddChild(codeTag);
emTag.AddChild("");
strongTag.AddChild("b ");
strongTag.AddChild(emTag);
strongTag.AddChild(" c");
expected.AddChild("");
expected.AddChild(strongTag);
expected.AddChild("");
CompareMarkDownTextAndTree(expected, text);
}
void CompareMarkDownTextAndTree(TextTree expected, string text)
{
var actual = new TreeBuilder().GetTree(text);
CollectionAssert.AreEqual(expected.Children, actual.Children);
}
public void EscapeSymbolsBeforeTags_EscapeSymbolsEscapeTags()
{
var text = @"\_a b_ _\_c__ d";
var expected = new TextTree();
expected.AddChild(@"_a b_ ");
var emNode = new TextTree() { Tag = Tag.Em };
expected.AddChild(emNode);
expected.AddChild(@"_c__ d");
CompareMarkDownTextAndTree(expected, text);
}
public void ClosingTagAfterDigit_IsNotATag()
{
var text = @"abc__5";
var expected = new TextTree();
expected.AddChild("abc__5");
CompareMarkDownTextAndTree(expected, text);
}