public override CssValue Evaluate(ScssEnvironment env)
{
var l = Left.Evaluate(env);
var r = Right.Evaluate(env);
if (l.Type == CssValueType.Number) {
var t = l;
l = r;
r = t;
}
if (r.Type == CssValueType.Number) {
switch (l.Type) {
case CssValueType.Number:
case CssValueType.Percentage:
case CssValueType.Pixel:
case CssValueType.Em:
case CssValueType.Rem:
case CssValueType.ViewportWidth:
case CssValueType.ViewportHeight:
case CssValueType.Inch:
case CssValueType.Centimeter:
return new CssValue {
Type = l.Type,
Number = l.Number * r.Number
};
}
}
throw new Exception("unit mismatch");
}
public override CssValue Evaluate(ScssEnvironment env)
{
return new CssValue {
Color = Color,
Type = CssValueType.Color
};
}
public override CssValue Evaluate(ScssEnvironment env)
{
return new CssValue {
Number = Value,
Type = CssValueType.Number
};
}
public override CssValue Evaluate(ScssEnvironment env)
{
return new CssValue {
Type = CssValueType.String,
String = Value
};
}
public void ParserTest()
{
var parser = new ScssParser();
var doc = parser.Parse("p { width: 20px; }");
var env = new ScssEnvironment();
doc.Compile(env);
Assert.AreEqual("p{width:20px;}", env.Document.ToString());
}
public override string Evaluate(ScssEnvironment env)
{
var sb = new StringBuilder();
foreach (var expr in Expressions) {
sb.Append(expr.Evaluate(env));
}
return sb.ToString();
}
public override CssValue Evaluate(ScssEnvironment env)
{
var val = Inner.Evaluate(env);
return new CssValue {
Number = val.Number,
Type = Type
};
}
public void NestedRuleParserTest()
{
var parser = new ScssParser();
var doc = parser.Parse(@"
div {
p {
width: 20px;
}
span {
color: red;
&:hover {
color: green;
&:after {
display: none;
}
span {
color: blue;
}
}
}
}");
var env = new ScssEnvironment();
doc.Compile(env);
AssertExt.AreEqual(new CssDocument {
Rules = {
new CssQualifiedRule ("div"),
new CssQualifiedRule ("div p") {
Declarations = {
new CssDeclaration("width", "20px")
}
},
new CssQualifiedRule ("div span") {
Declarations = {
new CssDeclaration("color", "red")
}
},
new CssQualifiedRule ("div span:hover") {
Declarations = {
new CssDeclaration("color", "green"),
}
},
new CssQualifiedRule ("div span:hover:after") {
Declarations = {
new CssDeclaration("display", "none")
}
},
new CssQualifiedRule ("div span:hover span") {
Declarations = {
new CssDeclaration("color", "blue"),
}
},
}
}, env.Document);
}
public override CssValue Evaluate(ScssEnvironment env)
{
var sb = new StringBuilder();
foreach (var expr in Expressions) {
if (sb.Length != 0) sb.Append(' ');
sb.Append(expr.Evaluate(env));
}
return new CssValue {
String = sb.ToString(),
Type = CssValueType.String
};
}
public override void Compile(ScssEnvironment env)
{
env.PushRule(Selector);
foreach (var node in Rules.Nodes) {
node.Compile(env);
}
env.Document.Rules.Add(env.CssRule);
foreach (var subRule in RuleSets.Nodes) {
subRule.Compile(env);
}
env.PopRule();
}
public override CssValue Evaluate(ScssEnvironment env)
{
var l = Inner.Evaluate(env);
switch (l.Type) {
case CssValueType.Number:
case CssValueType.Percentage:
case CssValueType.Pixel:
case CssValueType.Em:
case CssValueType.Rem:
case CssValueType.ViewportWidth:
case CssValueType.ViewportHeight:
case CssValueType.Inch:
return new CssValue {
Type = l.Type,
Number = -l.Number
};
default:
throw new Exception("unit mismatch");
}
}
public override void Compile(ScssEnvironment env)
{
foreach (var rule in Rules) {
rule.Compile(env);
}
}
public abstract CssValue Evaluate(ScssEnvironment env);
public abstract void Compile(ScssEnvironment env);
public override void Compile(ScssEnvironment env)
{
foreach (var node in Nodes) {
node.Compile(env);
}
}
public override void Compile(ScssEnvironment env)
{
env.CssRule.Declarations.Add(new CssDeclaration { Name = env.FormatProperty(), Value = Value.Evaluate(env).ToString() });
}
public abstract string Evaluate(ScssEnvironment env);
public void SimpleParseTest()
{
const string input = @"
#main p {
color: #eeffdd;
width: 97%;
.redbox {
background-color: #ffbca8;
color: #bfadef;
}
}";
var doc = new ScssParser().Parse(input);
var env = new ScssEnvironment();
doc.Compile(env);
var css = env.Document.ToString();
}
public override string Evaluate(ScssEnvironment env)
{
return Inner.Evaluate(env);
}
public override string Evaluate(ScssEnvironment env)
{
return Left.Evaluate(env) + "+" + Right.Evaluate(env);
}
public override string Evaluate(ScssEnvironment env)
{
return "." + ClassName;
}
public override string Evaluate(ScssEnvironment env)
{
return $"[{AttributeName}]";
}
public override string Evaluate(ScssEnvironment env)
{
return "#" + Id;
}
public override void Compile(ScssEnvironment env)
{
//TODO:
throw new System.NotImplementedException();
}
public override string Evaluate(ScssEnvironment env)
{
return TypeName;
}
public override string Evaluate(ScssEnvironment env)
{
return $":not({Inner.Evaluate(env)})";
}
public override void Compile(ScssEnvironment env)
{
env.PushProperty(Property);
Value.Compile(env);
env.PopProperty();
}
