| Kent Tamura | 292d532 | 2019-04-22 09:35:16 | [diff] [blame] | 1 | <!DOCTYPE html> |
| 2 | <link rel="help" href="https://www.w3.org/TR/1999/REC-xpath-19991116/#function-lang"> |
| 3 | <link rel="help" href="https://www.w3.org/TR/xpath-functions-31/#func-lang"> |
| 4 | <body> |
| 5 | <script src="/resources/testharness.js"></script> |
| 6 | <script src="/resources/testharnessreport.js"></script> |
| 7 | <script> |
| 8 | // Set the context node to the first child of the root element, and evaluate |
| 9 | // the specified XPath expression. The test passes if |
| 10 | // - The first child element name is 'match' and XPath result is true, or |
| 11 | // - The first child element name is not 'match' and XPath result is false. |
| 12 | function testFirstChild(expression, xmlString) { |
| 13 | let doc = (new DOMParser()).parseFromString(xmlString, 'text/xml'); |
| 14 | test(() => { |
| 15 | let element = doc.documentElement.firstChild; |
| 16 | let result = doc.evaluate(expression, element, null, XPathResult.BOOLEAN_TYPE, null); |
| 17 | assert_equals(result.resultType, XPathResult.BOOLEAN_TYPE); |
| 18 | assert_equals(result.booleanValue, element.localName == 'match', element.outerHTML); |
| 19 | }, `${expression}: ${doc.documentElement.outerHTML}`); |
| 20 | } |
| 21 | |
| 22 | testFirstChild('lang("en")', '<root><match xml:lang="en"/></root>'); |
| 23 | testFirstChild('lang("en")', '<root><match xml:lang="EN"/></root>'); |
| 24 | testFirstChild('lang("en")', '<root><match xml:lang="en-us"/></root>'); |
| 25 | testFirstChild('lang("en")', '<root><unmatch/></root>'); |
| 26 | |
| 27 | // XPath 1.0 says: |
| 28 | // if the context node has no xml:lang attribute, by the value of the |
| 29 | // xml:lang attribute on the nearest ancestor of the context node that has |
| 30 | // an xml:lang attribute. |
| 31 | testFirstChild('lang("ja")', '<root xml:lang="ja"><match/></root>'); |
| 32 | |
| 33 | // XPath 1.0 says: |
| 34 | // if there is some suffix starting with - such that the attribute value is |
| 35 | // equal to the argument ignoring that suffix of the attribute value |
| 36 | testFirstChild('lang("ja")', '<root xml:lang="ja-jp"><unmatch xml:lang="ja_JP"/></root>'); |
| 37 | |
| 38 | // U+212A should match to ASCII 'k'. |
| 39 | // XPath 1.0 says: |
| 40 | // ... such that the attribute value is equal to the argument ignoring that suffix |
| 41 | // of the attribute value and ignoring case. |
| 42 | // XPath 3.1 says: |
| 43 | // ... true if and only if, based on a caseless default match as specified in |
| 44 | // section 3.13 of The Unicode Standard, |
| 45 | testFirstChild('lang("ko")', '<root><match xml:lang="Ko"/></root>'); |
| 46 | </script> |
| 47 | </body> |
