/// <summary>
/// (BNF) stylesheet : [ CDO | CDC | S | statement ]*;
/// </summary>
/// <returns>CSS StyleSheet parse tree</returns>
private CssStyleSheet ParseStyleSheet()
{
CssStyleSheet styleSheet = new CssStyleSheet();
using (this.reader = new LineReader(this.filePath, this.source, CssParser.ReadFilters))
{
this.reader.NormalizeWhiteSpace = true;
#if DEBUG
System.Diagnostics.Stopwatch watch = System.Diagnostics.Stopwatch.StartNew();
#endif
char ch;
while (this.Read(out ch))
{
switch (ch)
{
case '\uFEFF': // BOM (UTF byte order mark)
case '\t': //TAB
case '\n': //LF
case '\r': //CR
case ' ': //Space
{
// skip whitespace
continue;
}
case '<':
{
// CDO (Char Data Open?)
if (!this.Read(out ch) || ch != '-' ||
!this.Read(out ch) || ch != '-')
{
throw new SyntaxError("Expected \"<!--\"", this.reader.FilePath, this.reader.Line, this.reader.Column);
}
continue;
}
case '-':
{
// CDC (Char Data Close?)
if (!this.Read(out ch) || ch != '-' ||
!this.Read(out ch) || ch != '>')
{
throw new SyntaxError("Expected \"-->\"", this.reader.FilePath, this.reader.Line, this.reader.Column);
}
continue;
}
default:
{
try
{
CssStatement statement = this.ParseStatement();
styleSheet.Statements.Add(statement);
}
catch (ParseException ex)
{
this.errors.Add(ex);
while (this.Read(out ch) && ch != '}')
{
// restabilize on next statement
}
}
continue;
}
}
}
#if DEBUG
watch.Stop();
Console.WriteLine("CSS parse duration: {0} ms for {1} chars", watch.ElapsedMilliseconds, this.reader.Length);
#endif
}
this.reader = null;
this.source = null;
return styleSheet;
}
/// <summary>
/// (BNF) stylesheet : [ CDO | CDC | S | statement ]*;
/// </summary>
/// <returns>CSS StyleSheet parse tree</returns>
private CssStyleSheet ParseStyleSheet()
{
CssStyleSheet styleSheet = new CssStyleSheet();
using (this.reader = new LineReader(this.filePath, this.source, CssParser.ReadFilters))
{
this.reader.NormalizeWhiteSpace = true;
#if DEBUG
System.Diagnostics.Stopwatch watch = System.Diagnostics.Stopwatch.StartNew();
#endif
char ch;
while (this.Read(out ch))
{
switch (ch)
{
case '\uFEFF': // BOM (UTF byte order mark)
case '\t': //TAB
case '\n': //LF
case '\r': //CR
case ' ': //Space
{
// skip whitespace
continue;
}
case '<':
{
// CDO (Char Data Open?)
if (!this.Read(out ch) || ch != '-' ||
!this.Read(out ch) || ch != '-')
{
throw new SyntaxError("Expected \"<!--\"", this.reader.FilePath, this.reader.Line, this.reader.Column);
}
continue;
}
case '-':
{
// CDC (Char Data Close?)
if (!this.Read(out ch) || ch != '-' ||
!this.Read(out ch) || ch != '>')
{
throw new SyntaxError("Expected \"-->\"", this.reader.FilePath, this.reader.Line, this.reader.Column);
}
continue;
}
default:
{
try
{
CssStatement statement = this.ParseStatement();
styleSheet.Statements.Add(statement);
}
catch (ParseException ex)
{
this.errors.Add(ex);
while (this.Read(out ch) && ch != '}')
{
// restabilize on next statement
}
}
continue;
}
}
}
#if DEBUG
watch.Stop();
Console.WriteLine("CSS parse duration: {0} ms for {1} chars", watch.ElapsedMilliseconds, this.reader.Length);
#endif
}
this.reader = null;
this.source = null;
return(styleSheet);
}
