/// <summary>
/// Parse node contents add return a fresh node.
/// </summary>
/// <param name="parent">Node that this is a subnode to. Can be null</param>
/// <param name="prototypes">A list with node types</param>
/// <param name="line">Line to parse</param>
/// <param name="offset">Where to start the parsing. Will be set to where the next node should start parsing</param>
/// <returns>A node corresponding to the bla bla; null if parsing failed.</returns>
/// <exception cref="CodeGeneratorException"></exception>
public override Node Parse(NodeList prototypes, Node parent, LineInfo line, ref int offset)
{
if (offset > line.Data.Length - 1)
throw new CodeGeneratorException(line.LineNumber, line.Data, "Tried to parse after end of line");
if (line.Data[offset] != '%')
throw new CodeGeneratorException(line.LineNumber, line.Data, "Not a tag node");
int pos = -1;
for (int i = offset + 1; i < line.Data.Length; ++i)
{
if (!char.IsLetterOrDigit(line.Data[i]))
{
pos = i;
break;
}
}
if (pos == -1)
pos = line.Data.Length;
TagNode node = (TagNode) prototypes.CreateNode("%", parent);
node.Name = line.Data.Substring(offset + 1, pos - offset - 1);
if (node._name == "br" || node._name == "input" || node._name == "style" || node._name == "img")
{
line.SelfClosed = true;
node.LineInfo = line;
node.LineInfo.SelfClosed = true;
}
offset = pos;
return node;
}
/// <summary>
/// Parse node contents add return a fresh node.
/// </summary>
/// <param name="prototypes">List containing all node types</param>
/// <param name="parent">Node that this is a subnode to. Can be null</param>
/// <param name="line">Line to parse</param>
/// <param name="offset">Where to start the parsing. Should be set to where the next node should start parsing.</param>
/// <returns>A node corresponding to the bla bla; null if parsing failed.</returns>
/// <exception cref="CodeGeneratorException"></exception>
public override Node Parse(NodeList prototypes, Node parent, LineInfo line, ref int offset)
{
offset = line.Data.Length;
return new DocTypeTag(
@"<!DOCTYPE html PUBLIC ""-//W3C//DTD XHTML 1.0 Strict//EN"" ""http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"">".Replace("\"", "\"\""),
parent);
}
/// <summary>
/// Parse node contents add return a fresh node.
/// </summary>
/// <param name="prototypes">List containing all node types</param>
/// <param name="parent">Node that this is a subnode to. Can be null</param>
/// <param name="line">Line to parse</param>
/// <param name="offset">Where to start the parsing. Should be set to where the next node should start parsing.</param>
/// <returns>A node corresponding to the bla bla; null if parsing failed.</returns>
/// <exception cref="CodeGeneratorException"></exception>
public override Node Parse(NodeList prototypes, Node parent, LineInfo line, ref int offset)
{
// text on tag rows are identified by a single space.
if (parent != null && line.Data[offset] == ' ')
++offset;
TextNode node = new TextNode(parent, line.Data.Substring(offset));
if (parent == null)
node.LineInfo = line;
offset = line.Data.Length;
return node;
}
/// <summary>
/// Creates a DIV node and add's the specified node to it.
/// </summary>
/// <param name="prototypes">Contains all prototypes for each control char. used to instanciate new nodes.</param>
/// <param name="parent">parent node</param>
/// <param name="line">current line information</param>
/// <param name="me">node to add to the DIV node</param>
/// <returns>current node</returns>
public Node AddMe(NodeList prototypes, Node parent, LineInfo line, Node me)
{
if (parent == null)
{
TagNode tag = (TagNode)prototypes.CreateNode("%", parent);
tag.Name = "div";
tag.LineInfo = line;
tag.AddModifier(me);
return tag;
}
return me;
}
/// <summary>
/// Parse node contents add return a fresh node.
/// </summary>
/// <param name="prototypes">List containing all node types</param>
/// <param name="parent">Node that this is a subnode to. Can be null</param>
/// <param name="line">Line to parse</param>
/// <param name="offset">Where to start the parsing. Should be set to where the next node should start parsing.</param>
/// <returns>A node corresponding to the bla bla; null if parsing failed.</returns>
/// <exception cref="CodeGeneratorException"></exception>
public override Node Parse(NodeList prototypes, Node parent, LineInfo line, ref int offset)
{
if (offset > line.Data.Length)
throw new CodeGeneratorException(line.LineNumber, line.Data, "Too little data");
int pos = line.Data.Length;
++offset;
string code = line.Data.Substring(offset, pos - offset);
offset = pos;
SilentCodeNode node = (SilentCodeNode) prototypes.CreateNode("-", parent);
node._code = code;
if (parent != null)
node.LineInfo = line;
return node;
}
/// <summary>
/// Parse node contents add return a fresh node.
/// </summary>
/// <param name="prototypes">List containing all node types</param>
/// <param name="parent">Node that this is a subnode to. Can be null</param>
/// <param name="line">Line to parse</param>
/// <param name="offset">Where to start the parsing. Should be set to where the next node should start parsing.</param>
/// <returns>A node corresponding to the bla bla; null if parsing failed.</returns>
/// <exception cref="CodeGeneratorException"></exception>
public override Node Parse(NodeList prototypes, Node parent, LineInfo line, ref int offset)
{
if (line.Data[offset] != '#')
throw new CodeGeneratorException(line.LineNumber, line.Data, "Node is not an id node.");
int endPos = GetEndPos(offset, line.Data);
if (endPos == -1)
endPos = line.Data.Length;
++offset;
string id = line.Data.Substring(offset, endPos - offset);
offset = endPos;
IdNode node = (IdNode)prototypes.CreateNode("#", parent);
node._id = id;
return AddMe(prototypes, parent, line, node);
}
/// <summary>
/// Parse node contents add return a fresh node.
/// </summary>
/// <param name="prototypes">List containing all node types</param>
/// <param name="parent">Node that this is a subnode to. Can be null</param>
/// <param name="line">Line to parse</param>
/// <param name="offset">Where to start the parsing. Should be set to where the next node should start parsing.</param>
/// <returns>A node corresponding to the bla bla; null if parsing failed.</returns>
/// <exception cref="CodeGeneratorException"></exception>
public override Node Parse(NodeList prototypes, Node parent, LineInfo line, ref int offset)
{
if (offset > line.Data.Length - 1)
throw new CodeGeneratorException(line.LineNumber, line.Data, "Too little data");
int pos = GetEndPos(offset, line.Data);
if (pos == -1)
pos = line.Data.Length;
++offset;
string name = line.Data.Substring(offset, pos - offset);
offset = pos;
ClassNode node = (ClassNode) prototypes.CreateNode(".", parent);
node._name = name;
return AddMe(prototypes, parent, line, node);
}
public void TestPartial3()
{
LineInfo line = new LineInfo(1, string.Empty);
line.Set("%a{href=\"/settings/divert/remove/\", title=Language[\"RemoveDivert\"] }", 0, 0);
TagNode tagNode = new TagNode(null);
NodeList nodes = new NodeList();
AttributeNode node = new AttributeNode(tagNode);
nodes.Add(node);
nodes.Add(tagNode);
int offset = 2;
AttributeNode myNode = (AttributeNode)node.Parse(nodes, tagNode, line, ref offset);
bool inStr = true;
string res = myNode.ToCode(ref inStr, false);
//Assert.Equal("\"this\"+testCase.Id+\"id\"", myNode.GetAttribute("value").Value);
//Assert.Equal("value=\"\"\"); sb.Append(\"this\"+testCase.Id+\"id\"); sb.Append(@\"\"\"", res);
}
public void TestPartial2()
{
LineInfo line = new LineInfo(1, string.Empty);
line.Set("%input{ value=\"http://\"+domain+\"/voicemail/listen/\" + item.Id }", 0, 0);
TagNode tagNode = new TagNode(null);
NodeList nodes = new NodeList();
AttributeNode node = new AttributeNode(tagNode);
nodes.Add(node);
nodes.Add(tagNode);
int offset = 6;
AttributeNode myNode = (AttributeNode)node.Parse(nodes, tagNode, line, ref offset);
bool inStr = true;
string res = myNode.ToCode(ref inStr, false);
Assert.Equal("\"this\"+testCase.Id+\"id\"", myNode.GetAttribute("value").Value);
Assert.Equal("value=\"\"\"); sb.Append(\"this\"+testCase.Id+\"id\"); sb.Append(@\"\"\"", res);
}
/// <summary>
/// Will check that all rule conditions have been met.
/// Will also remove the rules if they are done.
/// </summary>
/// <param name="line"></param>
/// <returns></returns>
private bool CheckUnfinishedRule(LineInfo line)
{
if (_unfinishedRule != null)
{
// rule is done, remove it.
// we can exit extra lines may have rules that are done too.
if (!_unfinishedRule.IsMultiLine(line, false))
_unfinishedRule = null;
else
return true;
}
bool res = false;
foreach (LineInfo subLine in _extraLines)
{
if (subLine.CheckUnfinishedRule(line))
res = true;
}
return res;
}
public void Test()
{
LineInfo line = new LineInfo(1, string.Empty);
line.Set("%input{ type=\"checkbox\", value=testCase.Id, name=\"case\", class=lastCat.Replace(' ', '-')}", 0,
0);
TagNode tagNode = new TagNode(null);
NodeList nodes = new NodeList();
AttributeNode node = new AttributeNode(tagNode);
nodes.Add(node);
nodes.Add(tagNode);
int offset = 6;
AttributeNode myNode = (AttributeNode)node.Parse(nodes, tagNode, line, ref offset);
bool t = false;
string temp = myNode.ToCode(ref t, false);
Assert.Equal("\"checkbox\"", myNode.GetAttribute("type").Value);
Assert.Equal("testCase.Id", myNode.GetAttribute("value").Value);
Assert.Equal("\"case\"", myNode.GetAttribute("name").Value);
Assert.Equal("lastCat.Replace(' ', '-')", myNode.GetAttribute("class").Value);
}
/// <summary>
/// Parse node contents add return a fresh node.
/// </summary>
/// <param name="prototypes">List containing all node types</param>
/// <param name="parent">Node that this is a subnode to. Can be null</param>
/// <param name="line">Line to parse</param>
/// <param name="offset">Where to start the parsing. Should be set to where the next node should start parsing.</param>
/// <returns>A node corresponding to the bla bla; null if parsing failed.</returns>
/// <exception cref="CodeGeneratorException"></exception>
public override Node Parse(NodeList prototypes, Node parent, LineInfo line, ref int offset)
{
if (offset >= line.Data.Length)
throw new CodeGeneratorException(line.LineNumber, line.Data, "Too little data");
int pos = line.Data.Length;
++offset;
string name = line.Data.Substring(offset, pos - offset);
offset = pos;
string trimmedData = line.Data.Trim();
if (trimmedData.Length > 0 && trimmedData[trimmedData.Length-1] == ';')
throw new CodeGeneratorException(line.LineNumber, line.Data, "Displayed code should not end with semicolon.");
DisplayCodeNode node = (DisplayCodeNode)prototypes.CreateNode("=", parent);
node._code = name;
if (parent == null)
node.LineInfo = line;
return node;
}
/// <summary>
/// Parse a node
/// todo: improve doc
/// </summary>
/// <param name="theLine"></param>
/// <param name="prototypes"></param>
/// <param name="parent"></param>
/// <param name="textNode"></param>
protected static void ParseNode(LineInfo theLine, NodeList prototypes, Node parent, TextNode textNode)
{
Node curNode = null;
int offset = 0;
// parse each part of a line
while (offset <= theLine.Data.Length - 1)
{
Node node = prototypes.GetPrototype(GetWord(theLine.Data, offset), curNode == null) ?? textNode;
node = node.Parse(prototypes, curNode, theLine, ref offset);
// first node on line, set it as current
if (curNode == null)
{
curNode = node;
curNode.LineInfo = theLine;
parent.Children.AddLast(node);
}
else
curNode.AddModifier(node); // append attributes etc.
}
foreach (LineInfo child in theLine.Children)
ParseNode(child, prototypes, curNode, textNode);
}
/// <summary>
/// PreParse goes through the text add handles indentation
/// and all multi line cases.
/// </summary>
/// <param name="reader">Reader containing the text</param>
protected void PreParse(TextReader reader)
{
if (reader == null)
throw new ArgumentNullException("reader");
// Read first line to be able to assign it to the mother.
if (!ReadLine())
throw new CodeGeneratorException(1, "No data.");
if (_currentLine.Intendation != 0)
throw new CodeGeneratorException(1, "Invalid indentation, should be 0.");
_currentLine.Parent = _mother;
CheckIntendation(_currentLine);
CheckMultiLine(_prevLine, _currentLine);
while (ReadLine())
{
if (_currentLine.UnparsedData.Length == 0)
continue;
CheckIntendation(_currentLine);
CheckMultiLine(_prevLine, _currentLine);
if (_prevLine.AppendNextLine)
{
_prevLine.Append(_currentLine);
if(_currentLine.AppendNextLine)
_prevLine.AppendNextLine = true;
_currentLine = _prevLine;
continue;
}
HandlePlacement();
}
}
/// <summary>
/// Parse node contents add return a fresh node.
/// </summary>
/// <param name="prototypes">List containing all node types</param>
/// <param name="parent">Node that this is a subnode to. Can be null</param>
/// <param name="line">Line to parse</param>
/// <param name="offset">Where to start the parsing. Should be set to where the next node should start parsing.</param>
/// <returns>A node corresponding to the bla bla; null if parsing failed.</returns>
/// <exception cref="CodeGeneratorException"></exception>
public override Node Parse(NodeList prototypes, Node parent, LineInfo line, ref int offset)
{
if (line.Data[offset] != '{')
throw new CodeGeneratorException(line.LineNumber, line.Data, "Attribute cant handle info at char " + offset + 1);
int endPos = GetEndPos(offset, line.Data, '}');
if (endPos == -1)
throw new CodeGeneratorException(line.LineNumber, line.Data, "Failed to find end of attribute list: '" + line.UnparsedData + "'.");
List<Attribute> col = new List<Attribute>();
string attributes = line.Data.Substring(offset + 1, endPos - offset - 1);
ParseAttributes(line, attributes, col);
offset = endPos + 1;
AttributeNode node = (AttributeNode)prototypes.CreateNode("{", parent);
node._attributes = col;
return AddMe(prototypes, parent, line, node);
}
private static void ParseAttributes(LineInfo line, string attributes, List<Attribute> col)
{
bool inQuote = false;
int parenthisCount = 0;
string name = null;
int start = -1;
int step = 0; //0 = start of name, 1 = end of name, 2 = equal sign, 3 = start of value, 4 = end of value, 5 = comma
for (int i = 0; i < attributes.Length; ++i)
{
char ch = attributes[i];
if (ch == '"')
{
inQuote = !inQuote;
if (inQuote && step == 3)
{
++step;
start = i;
}
}
if (inQuote)
continue;
if (ch == '(')
++parenthisCount;
if (ch == ')')
--parenthisCount;
if (parenthisCount > 0)
continue;
// find start of name
if (step == 0)
{
if (!char.IsWhiteSpace(ch))
{
start = i;
++step;
}
}
// find end of name
else if (step == 1)
{
if (char.IsWhiteSpace(ch) || ch == '=')
{
name = attributes.Substring(start, i - start);
start = -1;
++step;
}
}
// find equal
if (step == 2)
{
if (ch == '=')
++step;
continue;
}
// start of value
if (step == 3)
{
if (!char.IsWhiteSpace(ch))
{
start = i;
++step;
}
}
// end of value
else if (step == 4)
{
if (ch == ',')
{
AddAttribute(col, name, attributes.Substring(start, i - start).Trim());
start = -1;
++step;
}
}
// find comma
if (step == 5)
{
if (ch == ',')
step = 0;
continue;
}
}
if (step > 0 && step < 4)
throw new CodeGeneratorException(line.LineNumber, line.Data, "Invalid attributes");
if (step == 4)
AddAttribute(col, name, attributes.Substring(start, attributes.Length - start));
}
/// <summary>
/// Append another line
/// </summary>
/// <param name="line"></param>
public void Append(LineInfo line)
{
SetParsedData(_data + line.Data);
_extraLines.AddLast(line);
if (CheckUnfinishedRule(this))
_appendNextLine = true;
else
_appendNextLine = false;
}
/// <summary>
/// Parse a file and convert into to our own template object code.
/// </summary>
/// <param name="reader">A <see cref="TextReader"/> containing our template</param>
/// <exception cref="CodeGeneratorException">If something is incorrect in the template.</exception>
public void Parse(TextReader reader)
{
_lineNo = -1;
_reader = reader;
_mother = new LineInfo(-1, string.Empty);
_prevLine = null;
_currentLine = null;
PreParse(reader);
NodeList prototypes = new NodeList();
prototypes.Add(new AttributeNode(null));
prototypes.Add(new TagNode(null));
prototypes.Add(new IdNode(null));
prototypes.Add(new SilentCodeNode(null));
prototypes.Add(new ClassNode(null));
prototypes.Add(new DisplayCodeNode(null));
prototypes.Add(new DocTypeTag(null, null));
prototypes.Add(new PartialNode(null));
TextNode textNode = new TextNode(null, "prototype");
_parentNode = new TextNode(null, string.Empty);
foreach (LineInfo info in _mother.Children)
ParseNode(info, prototypes, _parentNode, textNode);
}
/// <summary>
/// Print line information to the console
/// </summary>
/// <param name="line"></param>
public void PrintNode(LineInfo line)
{
_log.Write(this, LogPrio.Debug, Spaces(line.Intendation) + line.Data);
foreach (LineInfo info in line.Children)
PrintNode(info);
}
/// <summary>
/// Read next line from file
/// </summary>
/// <returns>true if line could be read; false if EOF.</returns>
protected bool ReadLine()
{
string line = _reader.ReadLine();
string trimmedLine = (line != null) ? line.Trim(new char[] {' ', '\t'}) : string.Empty;
while (line != null && (trimmedLine == string.Empty
|| (trimmedLine.Length > 0 && trimmedLine[0] == '-' && trimmedLine[1] == '/')
))
{
++_lineNo;
line = _reader.ReadLine();
trimmedLine = (line != null) ? line.Trim(new char[] {' ', '\t'}) : string.Empty;
}
if (line == null)
return false;
++_lineNo;
_prevLine = _currentLine;
_currentLine = new LineInfo(_lineNo, line);
return true;
}
/// <summary> /// Parse node contents add return a fresh node. /// </summary> /// <param name="prototypes">List containing all node types</param> /// <param name="parent">Node that this is a subnode to. Can be null</param> /// <param name="line">Line to parse</param> /// <param name="offset">Where to start the parsing. Should be set to where the next node should start parsing.</param> /// <returns>A node corresponding to the bla bla; null if parsing failed.</returns> /// <exception cref="CodeGeneratorException"></exception> public abstract Node Parse(NodeList prototypes, Node parent, LineInfo line, ref int offset);
/// <summary>
/// Check indentation
/// </summary>
/// <param name="line">fills line with intend info</param>
protected static void CheckIntendation(LineInfo line)
{
int ws, intendation;
CheckIntendation(line, out ws, out intendation);
if (ws == -1)
throw new CodeGeneratorException(line.LineNumber, line.Data,
"Failed to find indentation on line #" + line.LineNumber);
line.Set(ws, intendation);
}
/// <summary>
/// check if current line is a multi line
/// </summary>
/// <param name="prevLine">previous line</param>
/// <param name="line">current line</param>
protected void CheckMultiLine(LineInfo prevLine, LineInfo line)
{
if (prevLine != null && prevLine.UnfinishedRule != null)
{
if (prevLine.UnfinishedRule.IsMultiLine(line, true))
{
_log.Write(this, LogPrio.Trace, line.LineNumber + ": " + prevLine.UnfinishedRule.GetType().Name +
" says that the next line should be appended.");
line.AppendNextLine = true;
return;
}
}
foreach (Rule rule in _rules)
{
if (rule.IsMultiLine(line, false))
{
_log.Write(this, LogPrio.Trace, line.LineNumber + ": " + rule.GetType().Name +
" says that the next line should be appended.");
line.AppendNextLine = true;
continue;
}
}
}
/// <summary>
/// Check and validate indentation
/// </summary>
/// <param name="line">line to check</param>
/// <param name="ws">number of white spaces</param>
/// <param name="intendation">number of indentations (2 white spaces = 1 intend, 1 tab = 1 intend)</param>
protected static void CheckIntendation(LineInfo line, out int ws, out int intendation)
{
intendation = 0;
ws = -1;
char prevUnusedCh = line.UnparsedData[0];
if (prevUnusedCh == '\t')
{
++intendation;
prevUnusedCh = char.MinValue;
}
else if (prevUnusedCh != ' ')
{
ws = 0;
return;
}
for (int i = 1; i < line.UnparsedData.Length; ++i)
{
char ch = line.UnparsedData[i];
if (ch == ' ')
{
if (prevUnusedCh == '\t')
{
++intendation;
prevUnusedCh = ' ';
continue;
}
if (prevUnusedCh == ' ')
{
prevUnusedCh = char.MinValue;
++intendation;
continue;
}
prevUnusedCh = ' ';
}
else if (ch == '\t')
{
if (prevUnusedCh == ' ')
{
throw new CodeGeneratorException(line.LineNumber, line.Data,
"Invalid intendation sequence: One space + one tab. Should either be one tab or two spaces.");
}
if (prevUnusedCh == char.MinValue)
{
++intendation;
prevUnusedCh = char.MinValue;
continue;
}
}
else
{
if (prevUnusedCh != char.MinValue)
{
throw new CodeGeneratorException(line.LineNumber, line.Data,
"Invalid intendation at char " + i + ", expected a space.");
}
if (i == 1 && !char.IsWhiteSpace(line.UnparsedData[0]))
{
ws = 0;
}
else
{
ws = i;
}
return;
}
}
}
/// <summary>
/// Check and validate indentation
/// </summary>
/// <param name="line">line to check</param>
/// <param name="ws">number of white spaces</param>
/// <param name="intendation">number of indentations (2 white spaces = 1 intend, 1 tab = 1 intend)</param>
protected static void CheckIntendation(LineInfo line, out int ws, out int intendation)
{
intendation = 0;
ws = -1;
char prevUnusedCh = line.UnparsedData[0];
if (prevUnusedCh == '\t')
{
++intendation;
prevUnusedCh = char.MinValue;
}
else if (prevUnusedCh != ' ')
{
ws = 0;
return;
}
for (int i = 1; i < line.UnparsedData.Length; ++i)
{
char ch = line.UnparsedData[i];
if (ch == ' ')
{
if (prevUnusedCh == '\t')
{
++intendation;
prevUnusedCh = ' ';
continue;
}
if (prevUnusedCh == ' ')
{
prevUnusedCh = char.MinValue;
++intendation;
continue;
}
prevUnusedCh = ' ';
}
else if (ch == '\t')
{
if (prevUnusedCh == ' ')
throw new CodeGeneratorException(line.LineNumber, line.Data,
"Invalid intendation sequence: One space + one tab. Should either be one tab or two spaces.");
if (prevUnusedCh == char.MinValue)
{
++intendation;
prevUnusedCh = char.MinValue;
continue;
}
}
else
{
if (prevUnusedCh != char.MinValue)
throw new CodeGeneratorException(line.LineNumber, line.Data,
"Invalid intendation at char " + i + ", expected a space.");
if (i == 1 && !char.IsWhiteSpace(line.UnparsedData[0]))
ws = 0;
else
ws = i;
return;
}
}
}
