public static SVGStyleSheet Parse(string cssText)
{
var result = new SVGStyleSheet();
var tokens = Tokenize(cssText);
var sheet = new SVGStyleSheet();
while (ParseSelector(tokens, sheet))
{
foreach (var sel in sheet.selectors)
{
if (result.selectors.Contains(sel))
{
CombineProperties(result[sel], sheet[sel]);
}
else
{
result[sel] = sheet[sel];
}
}
sheet.Clear();
}
return(result);
}
private static bool ParseSelector(List <string> tokens, SVGStyleSheet sheet)
{
if (tokens.Count == 0)
{
return(false);
}
var newSheet = new SVGStyleSheet();
while (true)
{
var selectorName = PopToken(tokens);
newSheet[selectorName] = new SVGPropertySheet();
while (PeekToken(tokens) == ",")
{
PopToken(tokens);
}
if (PeekToken(tokens) == "" || PeekToken(tokens) == "{")
{
break;
}
}
var sep = PopToken(tokens);
if (sep != "{")
{
Debug.LogError("Invalid CSS selector opening bracket: \"" + sep + "\"");
return(false);
}
var props = new SVGPropertySheet();
ParseProperties(tokens, props);
// Transfer properties to the new selectors
foreach (var key in newSheet.selectors)
{
sheet[key] = CopyProperties(props);
}
sep = PopToken(tokens);
if (sep != "}")
{
Debug.LogError("Invalid CSS selector closing bracket: \"" + sep + "\"");
return(false);
}
return(true);
}