internal static Import ParseImportDirective(ParserStream stream)
{
var start = stream.Position;
var buffer = new StringBuilder();
stream.ScanUntilWithNesting(buffer, ';');
var toParse = buffer.ToString().Trim();
Value val;
MediaQuery media;
string mediaStr;
if (Regex.IsMatch(toParse, @"url\s*?\(", RegexOptions.IgnoreCase))
{
var i = toParse.IndexOf(')');
if (i == -1)
{
Current.RecordError(ErrorType.Parser, Position.Create(start, stream.Position, Current.CurrentFilePath), "Expected ')'");;
throw new StoppedParsingException();
}
val = Value.Parse(toParse.Substring(0, i + 1), start, start + i + 1, Current.CurrentFilePath);
mediaStr = toParse.Substring(i + 1);
}
else
{
if (!(toParse.StartsWith("\"") || toParse.StartsWith("'")))
{
Current.RecordError(ErrorType.Parser, Position.Create(start, stream.Position, Current.CurrentFilePath), "Expected quote");
throw new StoppedParsingException();
}
var i = toParse.LastIndexOf(toParse[0]);
if (i == -1)
{
Current.RecordError(ErrorType.Parser, Position.Create(start, stream.Position, Current.CurrentFilePath), "Expected '" + toParse[0] + "'");
throw new StoppedParsingException();
}
val = Value.Parse(toParse.Substring(0, i + 1), start, start + i + 1, Current.CurrentFilePath);
mediaStr = toParse.Substring(i + 1);
}
mediaStr = mediaStr.Trim();
if (mediaStr.Length > 0)
{
media = MediaQueryParser.Parse(mediaStr, Position.Create(start, stream.Position, Current.CurrentFilePath));
}
else
{
media = new MediaType(Media.all, Position.Create(start, stream.Position, Current.CurrentFilePath));
}
return(new Import(val, media, start, stream.Position, Current.CurrentFilePath));
}
internal static MediaBlock ParseMediaDirective(ParserStream stream)
{
var start = stream.Position;
var media = new StringBuilder();
stream.ScanUntil(media, '{');
var mediaStr = media.ToString().Trim();
if (mediaStr.IsNullOrEmpty())
{
Current.RecordError(ErrorType.Parser, Position.Create(start, stream.Position, Current.CurrentFilePath), "Expected media list");
throw new StoppedParsingException();
}
var mediaQuery = MediaQueryParser.Parse(mediaStr, Position.Create(start, stream.Position, Current.CurrentFilePath));
var contained = new List <Block>();
char c;
while ((c = stream.Peek()) != '}')
{
if (char.IsWhiteSpace(c))
{
stream.AdvancePastWhiteSpace();
continue;
}
// More directive (probably)
if (c == '@')
{
contained.Add(ParseDirective(stream));
continue;
}
// Selector + block time!
contained.Add(ParseSelectorAndBlock(stream));
}
var notAllowed = contained.Where(x => !(x is SelectorAndBlock || x is MoreVariable));
foreach (var illegal in notAllowed)
{
Current.RecordError(ErrorType.Parser, illegal, "@media can only contain blocks and variable declarations");
}
if (notAllowed.Count() != 0)
{
throw new StoppedParsingException();
}
// Skip past }
stream.Advance();
return(new MediaBlock(mediaQuery, contained, start, stream.Position, Current.CurrentFilePath));
}
internal static Using ParseUsingDirective(ParserStream stream)
{
var start = stream.Position;
var ignored = new StringBuilder();
var quote = stream.ScanUntil(ignored, '"', '\'');
if (quote == null)
{
Current.RecordError(ErrorType.Parser, Position.Create(start, stream.Position, Current.CurrentFilePath), "Expected quotation mark");
throw new StoppedParsingException();
}
var file = new StringBuilder();
stream.ScanUntil(file, quote.Value);
int mediaStart = stream.Position;
var mediaBuff = new StringBuilder();
stream.ScanUntil(mediaBuff, ';');
int mediaEnd = stream.Position;
MediaQuery media;
var mediaStr = mediaBuff.ToString().Trim();
if (mediaStr.Length > 0)
{
media = MediaQueryParser.Parse(mediaStr, Position.Create(mediaStart, mediaEnd, Current.CurrentFilePath));
}
else
{
media = new MediaType(Media.all, Position.NoSite);
}
return(new Using(file.ToString(), media, start, stream.Position, Current.CurrentFilePath));
}
internal static InnerMediaProperty ParseInnerMediaDirective(ParserStream stream)
{
var start = stream.Position;
var media = new StringBuilder();
stream.ScanUntil(media, '{');
var mediaStr = media.ToString().Trim();
if (mediaStr.IsNullOrEmpty())
{
Current.RecordError(ErrorType.Parser, Position.Create(start, stream.Position, Current.CurrentFilePath), "Expected media list");
throw new StoppedParsingException();
}
var mediaQuery = MediaQueryParser.Parse(mediaStr, Position.Create(start, stream.Position, Current.CurrentFilePath));
var props = ParseCssRules(InvalidSelector.Singleton, stream);
var blockEquiv = new SelectorAndBlock(InvalidSelector.Singleton, props, null, start, stream.Position, Current.CurrentFilePath);
return(new InnerMediaProperty(mediaQuery, blockEquiv, start, stream.Position, Current.CurrentFilePath));
}