public string Parse(string source)
{
// clear out the list of namespaces
m_namespaces.Clear();
// pre-process the comments
if (Settings.CommentMode == CssComment.Hacks)
{
// change the various hacks to important comments so they will be kept
// in the output
source = s_regexHack1.Replace(source, "/*! \\*/${inner}/*!*/");
source = s_regexHack2.Replace(source, "/*!/*//*/${inner}/**/");
source = s_regexHack3.Replace(source, "/*!/*/${inner}/*!*/");
source = s_regexHack4.Replace(source, "/*!*/");
source = s_regexHack5.Replace(source, "/*!*/");
source = s_regexHack6.Replace(source, "/*!*/");
source = s_regexHack7.Replace(source, "/*!*/");
// now that we've changed all our hack comments to important comments, we can
// change the flag to None so all non-important hacks are removed.
Settings.CommentMode = CssComment.Important;
}
// set up for the parse
using (StringReader reader = new StringReader(source))
{
m_scanner = new CssScanner(reader);
m_scanner.AllowEmbeddedAspNetBlocks = this.Settings.AllowEmbeddedAspNetBlocks;
m_scanner.ScannerError += new EventHandler<CssScannerErrorEventArgs>(OnScannerError);
// create the string builder into which we will be
// building our crunched stylesheet
m_parsed = new StringBuilder();
// get the first token
NextToken();
try
{
// parse a style sheet!
ParseStylesheet();
if (!m_scanner.EndOfFile)
{
string errorMessage = CssStringMgr.GetString(StringEnum.ExpectedEndOfFile);
throw new CssScannerException(
(int)StringEnum.ExpectedEndOfFile,
0,
m_currentToken.Context.Start.Line,
m_currentToken.Context.Start.Char,
errorMessage);
}
}
catch (CssException exc)
{
// show the error
OnCssError(exc);
}
// get the crunched string and dump the string builder
// (we don't need it anymore)
source = m_parsed.ToString();
m_parsed = null;
}
return source;
}
public string Parse(string source)
{
// clear out the list of namespaces
m_namespaces.Clear();
if (source.IsNullOrWhiteSpace())
{
// null or blank - return an empty string
source = string.Empty;
}
else
{
// pre-process the comments
var resetToHacks = false;
try
{
// see if we need to re-encode the text based on a @charset rule
// at the front.
source = HandleCharset(source);
if (Settings.CommentMode == CssComment.Hacks)
{
// change the various hacks to important comments so they will be kept
// in the output
source = s_regexHack1.Replace(source, "/*! \\*/${inner}/*!*/");
source = s_regexHack2.Replace(source, "/*!/*//*/${inner}/**/");
source = s_regexHack3.Replace(source, "/*!/*/${inner}/*!*/");
source = s_regexHack4.Replace(source, "/*!*/");
source = s_regexHack5.Replace(source, "/*!*/");
source = s_regexHack6.Replace(source, "/*!*/");
source = s_regexHack7.Replace(source, "/*!*/");
// now that we've changed all our hack comments to important comments, we can
// change the flag to Important so all non-important hacks are removed.
// And set a flag to remind us to change it back before we exit, or the NEXT
// file we process will have the wrong setting.
Settings.CommentMode = CssComment.Important;
resetToHacks = true;
}
// set up for the parse
using (StringReader reader = new StringReader(source))
{
m_scanner = new CssScanner(reader);
m_scanner.AllowEmbeddedAspNetBlocks = this.Settings.AllowEmbeddedAspNetBlocks;
m_scanner.ScannerError += (sender, ea) =>
{
OnCssError(ea.Exception);
};
m_scanner.ContextChange += (sender, ea) =>
{
FileContext = ea.FileContext;
};
// create the string builder into which we will be
// building our crunched stylesheet
m_parsed = new StringBuilder();
// get the first token
NextToken();
try
{
switch (Settings.CssType)
{
case CssType.FullStyleSheet:
// parse a style sheet!
ParseStylesheet();
break;
case CssType.DeclarationList:
ParseDeclarationList(false);
break;
default:
Debug.Fail("UNEXPECTED CSS TYPE");
goto case CssType.FullStyleSheet;
}
if (!m_scanner.EndOfFile)
{
string errorMessage = CssStrings.ExpectedEndOfFile;
throw new CssScannerException(
(int)CssErrorCode.ExpectedEndOfFile,
0,
m_currentToken.Context.Start.Line,
m_currentToken.Context.Start.Char,
errorMessage);
}
}
catch (CssException exc)
{
// show the error
OnCssError(exc);
}
// get the crunched string and dump the string builder
// (we don't need it anymore)
source = m_parsed.ToString();
m_parsed = null;
}
}
finally
{
// if we had changed our setting object...
if (resetToHacks)
{
// ...be sure to change it BACK for next time.
Settings.CommentMode = CssComment.Hacks;
}
}
}
return source;
}
