[CssSelector] fixed CssSelector::toXPath() when the CSS selector is an empty string
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@ -45,6 +45,10 @@ class CssSelector
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static public function toXPath($cssExpr, $prefix = 'descendant-or-self::')
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{
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if (is_string($cssExpr)) {
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if (!$cssExpr) {
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return $prefix.'*';
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}
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if (preg_match('#^\w+\s*$#u', $cssExpr, $match)) {
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return $prefix.trim($match[0]);
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}
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@ -17,6 +17,7 @@ class CssSelectorTest extends \PHPUnit_Framework_TestCase
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{
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public function testCsstoXPath()
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{
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$this->assertEquals('descendant-or-self::*', CssSelector::toXPath(''));
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$this->assertEquals('descendant-or-self::h1', CssSelector::toXPath('h1'));
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$this->assertEquals("descendant-or-self::h1[@id = 'foo']", CssSelector::toXPath('h1#foo'));
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$this->assertEquals("descendant-or-self::h1[contains(concat(' ', normalize-space(@class), ' '), ' foo ')]", CssSelector::toXPath('h1.foo'));
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