private void OnCssError(object sender, CssErrorEventArgs e)
{
CssException error = e.Exception;
if (error.Severity <= WarningLevel)
{
// the error code is the lower half of the error number, in decimal, prepended with "JS"
// again, NOT LOCALIZABLE so the format is not in the resources
string code = string.Format(
CultureInfo.InvariantCulture,
"CSS{0}",
error.Error & 0xffff);
// the location is the file name followed by the line and start/end columns within parens.
// if the file context is empty, use "stdin" as the file name.
// this string is NOT LOCALIZABLE, so not putting the format in the resources
string location = string.Format(
CultureInfo.InvariantCulture,
"{0}({1},{2})",
string.IsNullOrEmpty(FileName) ? "MinifyStyleSheet" : FileName,
error.Line,
error.Char);
AddErrorMessage(
location, // not localized
string.Empty, // localizable, optional
error.Severity < 2, // NOT localized, only two options
code, // not localized, cannot contain spaces
error.Message); // localizable with optional arguments
}
}
/// <summary>
/// Returns a minified version of a given CSS.
/// </summary>
/// <param name="resource">CSS to be minified</param>
/// <returns>Minified CSS</returns>
public string Minify(string resource)
{
if (String.IsNullOrEmpty(resource))
{
return(resource);
}
// Reset error
minificationError = null;
try
{
CssParser parser = new CssParser();
parser.CssError += parser_CssError;
// Parse the resource
string parsed = parser.Parse(resource);
if (!String.IsNullOrEmpty(parsed) && (minificationError == null))
{
resource = parsed;
}
}
catch (CssException ex)
{
minificationError = ex;
}
if (minificationError != null)
{
if (LogMinifierParseError)
{
// Log exception to event log if allowed
EventLogProvider.LogException("CSS Compression", "MINIFYCSS", minificationError);
}
// Add error info in front of non-minified resource
resource += "\r\n\r\n/* Minification failed (line " + minificationError.Line.ToString() + "): " + minificationError.Message + " */";
}
return(resource);
}
void OnCssError(object sender, CssErrorEventArgs e)
{
CssException error = e.Exception;
// ignore severity values greater than our severity level
if (error.Severity <= m_warningLevel)
{
// we found an error
m_errorsFound = true;
// the error code is the lower half of the error number, in decimal, prepended with "JS"
// again, NOT LOCALIZABLE so the format is not in the resources
string code = string.Format(
CultureInfo.InvariantCulture,
"CSS{0}",
(error.Error & (0xffff))
);
// the location is the file name followed by the line and start/end columns within parens.
// if the file context is empty, use "stdin" as the file name.
// this string is NOT LOCALIZABLE, so not putting the format in the resources
string context = ((CssParser)sender).FileContext;
string location = string.Format(
CultureInfo.InvariantCulture,
"{0}({1},{2})",
(string.IsNullOrEmpty(context) ? "stdin" : context),
error.Line,
error.Char
);
WriteError(CreateBuildError(
location,
GetSeverityString(error.Severity),
(error.Severity < 2), // severity 0 and 1 are errors; rest are warnings
code,
error.Message
));
WriteError(string.Empty);
}
}
/// <summary>
/// Parsing error occured - event handler.
/// </summary>
private void parser_CssError(object sender, CssErrorEventArgs e)
{
// Do not minify in the case of parse exception and log the error
minificationError = e.Exception;
}
