private void ReadIcon(MutableProjectTree tree, bool expandedIcon)
{ // Parses '{1B5CF1ED-9525-42B4-85F0-2CB50530ECA9 1}'
Tokenizer tokenizer = Tokenizer(Delimiters.BracedPropertyValueBlock);
tokenizer.Skip(TokenType.LeftBrace);
// Empty icon
if (tokenizer.SkipIf(TokenType.RightBrace))
{
return;
}
var moniker = ReadProjectImageMoniker();
if (expandedIcon)
{
tree.ExpandedIcon = moniker;
}
else
{
tree.Icon = moniker;
}
tokenizer.Skip(TokenType.RightBrace);
}
private string ReadQuotedPropertyValue()
{ // Parses '"C:\Temp"'
Tokenizer tokenizer = Tokenizer(Delimiters.QuotedPropertyValue);
tokenizer.Skip(TokenType.Quote);
string value = tokenizer.ReadIdentifier(IdentifierParseOptions.None);
tokenizer.Skip(TokenType.Quote);
return(value);
}
private int ReadIndentLevel(out int previousIndentLevel)
{
// Attempts to read the indent level of the current project item
//
// Root <--- IndentLevel: 0
// Parent <--- IndentLevel: 1
// Child <--- IndentLevel: 2
previousIndentLevel = _indentLevel;
int indentLevel = 0;
while (_tokenizer.Peek() == TokenType.WhiteSpace)
{
_tokenizer.Skip(TokenType.WhiteSpace);
_tokenizer.Skip(TokenType.WhiteSpace);
_tokenizer.Skip(TokenType.WhiteSpace);
_tokenizer.Skip(TokenType.WhiteSpace);
indentLevel++;
}
if (indentLevel > previousIndentLevel + 1)
{
throw _tokenizer.FormatException(ProjectTreeFormatError.IndentTooManyLevels, "Project item has been indented too many levels");
}
return(_indentLevel = indentLevel);
}
private void ReadFields(MutableProjectTree tree)
{ // Parses ', FilePath: "C:\Temp\Foo"'
// This section is optional
while (_tokenizer.SkipIf(TokenType.Comma))
{
_tokenizer.Skip(TokenType.WhiteSpace);
Tokenizer tokenizer = Tokenizer(Delimiters.PropertyName);
string fieldName = tokenizer.ReadIdentifier(IdentifierParseOptions.Required);
switch (fieldName)
{
case "FilePath":
tokenizer.Skip(TokenType.Colon);
tokenizer.Skip(TokenType.WhiteSpace);
ReadFilePath(tree);
break;
case "Icon":
tokenizer.Skip(TokenType.Colon);
tokenizer.Skip(TokenType.WhiteSpace);
ReadIcon(tree, expandedIcon: false);
break;
case "ExpandedIcon":
tokenizer.Skip(TokenType.Colon);
tokenizer.Skip(TokenType.WhiteSpace);
ReadIcon(tree, expandedIcon: true);
break;
case "DisplayOrder":
tokenizer.Skip(TokenType.Colon);
tokenizer.Skip(TokenType.WhiteSpace);
ReadDisplayOrder(tree);
break;
case "ItemName":
tokenizer.Skip(TokenType.Colon);
tokenizer.Skip(TokenType.WhiteSpace);
ReadItemName(tree);
break;
default:
throw _tokenizer.FormatException(ProjectTreeFormatError.UnrecognizedPropertyName, $"Expected 'FilePath', 'Icon' or 'ExpandedIcon', but encountered '{fieldName}'.");
}
}
}
private ProjectImageMoniker ReadProjectImageMoniker()
{
Tokenizer tokenizer = Tokenizer(Delimiters.BracedPropertyValue);
string guidAsString = tokenizer.ReadIdentifier(IdentifierParseOptions.Required);
Guid guid;
if (!Guid.TryParseExact(guidAsString, "D", out guid))
{
throw _tokenizer.FormatException(ProjectTreeFormatError.GuidExpected, $"Expected GUID, but encountered '{guidAsString}'");
}
tokenizer.Skip(TokenType.WhiteSpace);
string idAsString = tokenizer.ReadIdentifier(IdentifierParseOptions.Required);
int id;
if (!int.TryParse(idAsString, out id))
{
throw _tokenizer.FormatException(ProjectTreeFormatError.IntegerExpected, $"Expected integer, but encountered '{idAsString}'");
}
return(new ProjectImageMoniker(guid, id));
}
private void ReadCapabilities(MutableProjectTree tree)
{ // Parse '{ProjectRoot Folder}'
Tokenizer tokenizer = Tokenizer(Delimiters.BracedPropertyValueBlock);
tokenizer.Skip(TokenType.LeftBrace);
// Empty flags
if (tokenizer.SkipIf(TokenType.RightBrace))
{
return;
}
do
{
ReadFlag(tree);
}while (tokenizer.SkipIf(TokenType.WhiteSpace));
tokenizer.Skip(TokenType.RightBrace);
}
private void ReadProperty(MutableProjectTree tree)
{
Tokenizer tokenizer = Tokenizer(Delimiters.PropertyName);
string propertyName = tokenizer.ReadIdentifier(IdentifierParseOptions.Required);
switch (propertyName)
{
case "visibility":
tokenizer.Skip(TokenType.Colon);
tokenizer.Skip(TokenType.WhiteSpace);
ReadVisibility(tree);
break;
case "flags":
tokenizer.Skip(TokenType.Colon);
tokenizer.Skip(TokenType.WhiteSpace);
ReadCapabilities(tree);
break;
default:
throw _tokenizer.FormatException(ProjectTreeFormatError.UnrecognizedPropertyName, $"Expected 'visibility' or 'flags', but encountered '{propertyName}'.");
}
}
