/// <summary>
/// Creates a <see cref = "SnapshotSpan" /> for the given text snapshot covering all text between
/// the start and end tokens - (startToken, endToken)
/// </summary>
/// <param name = "snapshot">The current snapshot.</param>
/// <param name = "startToken">The start token of the span.</param>
/// <param name = "endToken">The end token of the span.</param>
/// <returns></returns>
protected override SnapshotSpan CreateSnapshotSpan(ITextSnapshot snapshot,
IniToken startToken,
IniToken endToken)
{
SnapshotSpan startSnapshot = CreateSnapshotSpan(snapshot, startToken);
SnapshotSpan endSnapshot = CreateSnapshotSpan(snapshot, endToken);
return(new SnapshotSpan(startSnapshot.Start, endSnapshot.End));
}
private void CheckOrThrow(IniToken token)
{
if (_tokenizer.CurrentToken == token)
{
return;
}
_tokenizer.Stat(out var line, out var index);
throw new ParserException(IniToken.SectionName, line, index);
}
public void single_line_comment_returns_a_single_comment_token()
{
string text = ";TheDudeAbides";
IEnumerable <IniToken> results = Parser.Parse(text);
Assert.Equal(1, results.Count());
IniToken actual = results.First();
Assert.Equal(IniTokenType.Comment, actual.Type);
Assert.Equal(text, actual.Text);
Assert.Equal(0, actual.Start);
}
public void single_line_comment_with_a_newline_returns_a_comment_token_and_whitespace_token()
{
string text = ";TheDudeAbides" + Environment.NewLine;
IEnumerable <IniToken> results = Parser.Parse(text);
Assert.Equal(2, results.Count());
IniToken comment = results.First();
Assert.Equal(IniTokenType.Comment, comment.Type);
IniToken newline = results.Last();
Assert.Equal(IniTokenType.Whitespace, newline.Type);
}
public static MorphicResult <IniFile, MorphicUnit> CreateFromString(string contents)
{
var properties = new List <IniProperty>();
var sections = new List <IniSection>();
var endOfFileContents = new EndOfFileContentsStruct(new List <char>(), new List <IniTrivia>());
IniSection?currentSection = null;
var lexer = new IniLexer(contents);
while (true)
{
IniToken iniToken = lexer.GetNextToken();
// if we've reached the last token, capture the end of file content and break out of this loop
if (iniToken.Kind == IniTokenKind.EndOfFile)
{
endOfFileContents.Lexeme = iniToken.Lexeme;
endOfFileContents.LeadingTrivia = iniToken.LeadingTrivia;
break;
}
switch (iniToken.Kind)
{
case IniTokenKind.Section:
{
// new section
var newSection = IniSection.CreateFromLexeme(iniToken.Lexeme, iniToken.LeadingTrivia, iniToken.TrailingTrivia);
currentSection = newSection;
//
sections.Add(newSection);
}
break;
case IniTokenKind.Property:
{
// new property
var newProperty = IniProperty.CreateFromLexeme(iniToken.Lexeme, iniToken.LeadingTrivia, iniToken.TrailingTrivia);
//
if (currentSection is not null)
{
// property within a section
currentSection.Properties.Add(newProperty);
}
else
{
// root property (i.e. outside of any sections)
properties.Add(newProperty);
}
}
break;
case IniTokenKind.Invalid:
return(MorphicResult.ErrorResult());
}
}
var result = new IniFile(properties, sections);
result.EndOfFileContents = endOfFileContents;
return(MorphicResult.OkResult(result));
}
public ParserException(IniToken correctToken, string line, int index)
: base($"{correctToken}", line, index)
{
}
private IniToken SaveCurrent(IniToken currentToken)
{
_prevToken = currentToken;
_stringIndex++;
return(currentToken);
}
/// <summary>
/// Creates a <see cref = "SnapshotSpan" /> for the given text snapshot and token.
/// </summary>
/// <param name = "snapshot">The snapshot.</param>
/// <param name = "token">The token.</param>
/// <returns></returns>
protected override SnapshotSpan CreateSnapshotSpan(ITextSnapshot snapshot, IniToken token)
{
return(new SnapshotSpan(snapshot, new Span(token.Start, token.Length)));
}