63 lines
1.6 KiB
JavaScript
63 lines
1.6 KiB
JavaScript
(function(tree) {
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tree.Rule = function(name, value, important, index) {
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this.name = name;
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this.value = (value instanceof tree.Value) ?
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value : new(tree.Value)([value]);
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this.important = important ? ' ' + important.trim() : '';
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this.index = index;
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this.symbolizer = tree.Reference.symbolizer(this.name);
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if (name.charAt(0) === '@') {
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this.variable = true;
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} else { this.variable = false }
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};
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tree.Rule.prototype.toCSS = function(env) {
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if (!tree.Reference.validSelector(this.name)) {
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throw {
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message: 'Unrecognized selector: ' + this.name,
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index: this.index
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};
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}
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if (!tree.Reference.validValue(env, this.name, this.value)) {
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throw {
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message: 'Invalid value for ' +
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this.name +
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', a ' +
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tree.Reference.selector(this.name).type +
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' is expected',
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index: this.index
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};
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}
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if (this.variable) { return '' }
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else {
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return tree.Reference.selectorName(this.name) +
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'="' +
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this.value.toCSS(env, this.name) +
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'"';
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}
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};
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tree.Rule.prototype.eval = function(context) {
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return new(tree.Rule)(this.name,
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this.value.eval(context),
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this.important,
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this.index);
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};
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tree.Shorthand = function(a, b) {
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this.a = a;
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this.b = b;
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};
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tree.Shorthand.prototype = {
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toCSS: function(env) {
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return this.a.toCSS(env) + '/' + this.b.toCSS(env);
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},
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eval: function() { return this }
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};
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})(require('mess/tree'));
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