public static StyleSheet Parse(TextReader reader, CssContext context = null)
{
var sheet = new StyleSheet(context ?? new CssContext());
var rules = new List<CssRule>();
IList<Browser> browsers = null;
using (var parser = new CssParser(reader))
{
foreach (var node in parser.ReadNodes())
{
if (node.Kind == NodeKind.Mixin)
{
var mixin = (MixinNode)node;
sheet.Context.Mixins.Add(mixin.Name, mixin);
}
else if (node.Kind == NodeKind.Directive)
{
var directive = (CssDirective)node;
if (directive.Name == "support")
{
var parts = directive.Value.Split(Seperators.Space); // SpaceArray...
BrowserType browserType;
if (Enum.TryParse(parts[0].Trim(), true, out browserType))
{
if (browsers == null)
{
browsers = new List<Browser>();
}
var browserVersion = float.Parse(parts[parts.Length - 1].Trim(' ', '+'));
browsers.Add(new Browser(browserType, browserVersion));
}
}
}
else
{
sheet.AddChild(node);
}
}
if (browsers != null)
{
sheet.Context.SetCompatibility(browsers.ToArray());
}
}
return sheet;
}
public CssWriter(TextWriter writer, CssContext?context = null, CssScope?scope = null, ICssResolver?resolver = null)
{
this.writer = writer;
this.context = context ?? new CssContext();
this.resolver = resolver;
this.scope = scope ?? new CssScope();
includeCount = 0;
importCount = 0;
nodeCount = 0;
skipMath = false;
this.browserSupport = this.context.BrowserSupport;
}
public CssWriter(TextWriter writer, CssContext context = null, CssScope scope = null, ICssResolver resolver = null)
{
#region Preconditions
if (writer == null) throw new ArgumentNullException(nameof(writer));
#endregion
this.writer = writer;
this.context = context ?? new CssContext();
this.resolver = resolver;
this.scope = scope ?? new CssScope();
this.browserSupport = this.context.BrowserSupport;
}
public static StyleSheet Parse(string text, CssContext context = null)
=> Parse(new StringReader(text), context);
public static StyleSheet Parse(Stream stream, CssContext context = null) => Parse(new StreamReader(stream), context);
public StyleSheet(CssContext context)
: base()
{
Context = context;
}
public StyleSheet(List<CssNode> children, CssContext context)
: base(children)
{
Context = context;
}
public static StyleSheet FromFile(FileInfo file, CssContext context = null)
{
string text;
using (var reader = file.OpenText())
{
text = reader.ReadToEnd();
}
try
{
return Parse(text, context);
}
catch (SyntaxException ex)
{
ex.Location = TextHelper.GetLocation(text, ex.Position);
ex.Lines = TextHelper.GetLinesAround(text, ex.Location.Line, 3).ToList();
throw ex;
}
}
