Add support for unicode-range

Author: raxbg

lib/Sabberworm/CSS/Parser.php

@@ -454,6 +454,8 @@ private function parsePrimitiveValue() {
 			$oValue = $this->parseMicrosoftFilter();
 		} else if ($this->comes("[")) {
 			$oValue = $this->parseLineNameValue();
+		} else if ($this->comes("U+")) {
+			$oValue = $this->parseUnicodeRangeValue();
 		} else {
 			$oValue = $this->parseIdentifier(true, false);
 		}
@@ -505,6 +507,14 @@ private function parseLineNameValue() {
 		return new LineName($aNames, $this->iLineNo);
 	}
 
+	private function parseUnicodeRangeValue() {
+		$sRange = "";
+		do {
+			$sRange .= $this->consume(1);
+		} while (!$this->comes(',') && !$this->comes(';') && !$this->comes('}'));
+		return $sRange;
+	}
+
 	private function parseColorValue() {
 		$aColor = array();
 		if ($this->comes('#')) {

tests/Sabberworm/CSS/ParserTest.php

@@ -126,6 +126,12 @@ function testUnicodeParsing() {
 		}
 	}
 
+	function testUnicodeRangeParsing() {
+		$oDoc = $this->parsedStructureForFile('unicode-range');
+		$sExpected = "@font-face {unicode-range: U+0100-024F,U+0259,U+1E??-2EFF,U+202F;}";
+		$this->assertSame($sExpected, $oDoc->render());
+	}
+
 	function testSpecificity() {
 		$oDoc = $this->parsedStructureForFile('specificity');
 		$oDeclarationBlock = $oDoc->getAllDeclarationBlocks();

tests/files/unicode-range.css

@@ -0,0 +1,3 @@
+@font-face {
+  unicode-range: U+0100-024F, U+0259, U+1E??-2EFF, U+202F;
+}