public bool Import(UnityStyleSheet asset, string contents)
{
ParserStyleSheet styleSheet = m_Parser.Parse(contents);
if (styleSheet.Errors.Count > 0)
{
foreach (StylesheetParseError error in styleSheet.Errors)
{
m_Errors.AddSyntaxError(error.ToString());
}
}
else
{
try
{
VisitSheet(styleSheet);
}
catch (Exception exc)
{
m_Errors.AddInternalError(exc.Message);
}
}
if (!m_Errors.hasErrors)
{
m_Builder.BuildTo(asset);
}
return(!m_Errors.hasErrors);
}
protected void VisitValue(Term term)
{
var primitiveTerm = term as PrimitiveTerm;
var colorTerm = term as HtmlColor;
var funcTerm = term as GenericFunction;
var termList = term as TermList;
var commaTerm = term as Comma;
var wsTerm = term as Whitespace;
if (term == PrimitiveTerm.Inherit)
{
m_Builder.AddValue(StyleValueKeyword.Inherit);
}
else if (primitiveTerm != null)
{
string rawStr = term.ToString();
switch (primitiveTerm.PrimitiveType)
{
case UnitType.Number:
float?floatValue = primitiveTerm.GetFloatValue(UnitType.Pixel);
m_Builder.AddValue(floatValue.Value);
break;
case UnitType.Pixel:
float?pixelValue = primitiveTerm.GetFloatValue(UnitType.Pixel);
m_Builder.AddValue(new Dimension(pixelValue.Value, Dimension.Unit.Pixel));
break;
case UnitType.Percentage:
float?percentValue = primitiveTerm.GetFloatValue(UnitType.Pixel);
m_Builder.AddValue(new Dimension(percentValue.Value, Dimension.Unit.Percent));
break;
case UnitType.Ident:
StyleValueKeyword keyword;
if (TryParseKeyword(rawStr, out keyword))
{
m_Builder.AddValue(keyword);
}
else
{
m_Builder.AddValue(rawStr, StyleValueType.Enum);
}
break;
case UnitType.String:
string unquotedStr = rawStr.Trim('\'', '\"');
m_Builder.AddValue(unquotedStr, StyleValueType.String);
break;
case UnitType.Uri:
VisitUrlFunction(primitiveTerm);
break;
default:
m_Errors.AddSemanticError(StyleSheetImportErrorCode.UnsupportedUnit, primitiveTerm.ToString());
return;
}
}
else if (colorTerm != null)
{
var color = new Color((float)colorTerm.R / 255.0f, (float)colorTerm.G / 255.0f, (float)colorTerm.B / 255.0f, (float)colorTerm.A / 255.0f);
m_Builder.AddValue(color);
}
else if (funcTerm != null)
{
if (funcTerm.Name == k_ResourcePathFunctionName)
{
VisitResourceFunction(funcTerm);
}
else
{
if (funcTerm.Arguments.Length == 0)
{
m_Errors.AddSemanticError(StyleSheetImportErrorCode.MissingFunctionArgument, funcTerm.Name);
return;
}
m_Builder.AddValue(funcTerm.Name, StyleValueType.Function);
m_Builder.AddValue(funcTerm.Arguments.Count(a => !(a is Whitespace)));
foreach (var arg in funcTerm.Arguments)
{
VisitValue(arg);
}
}
}
else if (termList != null)
{
foreach (Term childTerm in termList)
{
VisitValue(childTerm);
}
}
else if (commaTerm != null)
{
m_Builder.AddValue(commaTerm.ToString(), StyleValueType.FunctionSeparator);
}
else if (wsTerm != null)
{
// skip
}
else
{
m_Errors.AddInternalError(term.GetType().Name);
}
}
protected void VisitValue(Term term)
{
var primitiveTerm = term as PrimitiveTerm;
var colorTerm = term as HtmlColor;
var funcTerm = term as GenericFunction;
var termList = term as TermList;
if (term == PrimitiveTerm.Inherit)
{
m_Builder.AddValue(StyleValueKeyword.Inherit);
}
else if (primitiveTerm != null)
{
string rawStr = term.ToString();
switch (primitiveTerm.PrimitiveType)
{
case UnitType.Pixel:
case UnitType.Number:
float?floatValue = primitiveTerm.GetFloatValue(UnitType.Pixel);
m_Builder.AddValue(floatValue.Value);
break;
case UnitType.Ident:
StyleValueKeyword keyword;
if (TryParseKeyword(rawStr, out keyword))
{
m_Builder.AddValue(keyword);
}
else
{
m_Builder.AddValue(rawStr, StyleValueType.Enum);
}
break;
case UnitType.String:
string unquotedStr = rawStr.Trim('\'', '\"');
m_Builder.AddValue(unquotedStr, StyleValueType.String);
break;
case UnitType.Uri:
VisitUrlFunction(primitiveTerm);
break;
default:
m_Errors.AddSemanticError(StyleSheetImportErrorCode.UnsupportedUnit, primitiveTerm.ToString());
return;
}
}
else if (colorTerm != null)
{
var color = new Color((float)colorTerm.R / 255.0f, (float)colorTerm.G / 255.0f, (float)colorTerm.B / 255.0f, (float)colorTerm.A / 255.0f);
m_Builder.AddValue(color);
}
else if (funcTerm != null)
{
if (funcTerm.Name == k_ResourcePathFunctionName)
{
VisitResourceFunction(funcTerm);
}
else
{
m_Errors.AddSemanticError(StyleSheetImportErrorCode.UnsupportedFunction, funcTerm.Name);
}
}
else if (termList != null)
{
foreach (Term childTerm in termList)
{
VisitValue(childTerm);
}
}
else
{
m_Errors.AddInternalError(term.GetType().Name);
}
}
internal static void VisitValue(StyleSheetImportErrors errors, StyleSheetBuilder ssb, Term term)
{
PrimitiveTerm primitiveTerm = term as PrimitiveTerm;
HtmlColor htmlColor = term as HtmlColor;
GenericFunction genericFunction = term as GenericFunction;
TermList termList = term as TermList;
if (term == Term.Inherit)
{
ssb.AddValue(StyleValueKeyword.Inherit);
}
else if (primitiveTerm != null)
{
string text = term.ToString();
UnitType primitiveType = primitiveTerm.PrimitiveType;
switch (primitiveType)
{
case UnitType.String:
{
string value = text.Trim(new char[]
{
'\'',
'"'
});
ssb.AddValue(value, StyleValueType.String);
goto IL_F9;
}
case UnitType.Uri:
IL_63:
if (primitiveType != UnitType.Number && primitiveType != UnitType.Pixel)
{
errors.AddSemanticError(StyleSheetImportErrorCode.UnsupportedUnit, primitiveTerm.ToString());
return;
}
ssb.AddValue(primitiveTerm.GetFloatValue(UnitType.Pixel).Value);
goto IL_F9;
case UnitType.Ident:
{
StyleValueKeyword keyword;
if (StyleSheetImporterImpl.TryParseKeyword(text, out keyword))
{
ssb.AddValue(keyword);
}
else
{
ssb.AddValue(text, StyleValueType.Enum);
}
goto IL_F9;
}
}
goto IL_63;
IL_F9 :;
}
else if (htmlColor != null)
{
Color value2 = new Color((float)htmlColor.R / 255f, (float)htmlColor.G / 255f, (float)htmlColor.B / 255f, (float)htmlColor.A / 255f);
ssb.AddValue(value2);
}
else if (genericFunction != null)
{
primitiveTerm = (genericFunction.Arguments.FirstOrDefault <Term>() as PrimitiveTerm);
if (genericFunction.Name == "resource" && primitiveTerm != null)
{
string value3 = primitiveTerm.Value as string;
ssb.AddValue(value3, StyleValueType.ResourcePath);
}
else
{
errors.AddSemanticError(StyleSheetImportErrorCode.UnsupportedFunction, genericFunction.Name);
}
}
else if (termList != null)
{
foreach (Term current in termList)
{
StyleSheetImporterImpl.VisitValue(errors, ssb, current);
}
}
else
{
errors.AddInternalError(term.GetType().Name);
}
}
