// $fluid = fluidify('path/to/file.xml');
$other = fluidxml($fluid->xml());
$fluid = fluidxml();
$fluid->add($other)->add(['query' => $fluid->query('//meta'), 'dom' => $dom, 'domnodes' => $dom->childNodes, 'simplexml' => $simplexml]);
// Imports a SimpleXMLElement.
/******************
* XPath Queries. *
*******************/
/*
* XPath queries can be absolute or relative to the context over they are executed.
*/
$eggs = $food->query('//egg');
$fruits = $food->query('//fruit[@price="expensive"]');
echo "We have {$eggs->length()} eggs and {$fruits->length()} expensive fruit.\n";
echo "————————————————————————————————————————————————————————————————————————————————\n";
$book->query('//chapter')->attr('lang', 'en')->query('..')->attr('lang', 'en')->query('../title')->attr('lang', 'en');
/*
* The previous code presents a repetition: all 'setAttribute' calls are identical.
* It can be refactored taking advantage of an advanced feature of 'query'.
*/
$book->query('//chapter', '//chapters', '/book/title')->attr('lang', 'en');
/*******************************
* Accessing The Node Content. *
********************************/
/*
* The result of a query can be accessed even as array.
* Accessing the result of a query as array performs the unwrapping of the node
* and returns a raw instance of DOMNode.
* You loose the FluidXML interface but gain direct access to the DOMNode apis.
*/
$chapters = $book->query('//chapter');
describe('.asArray', function () {
it('should return an array of nodes inside the context', function () {
$xml = new FluidXml();
$cx = $xml->appendChild(['head', 'body'], true);
$a = $cx->asArray();
$actual = $a;
\assert(\is_array($actual));
$actual = \count($a);
$expected = 2;
\assert($actual === $expected, __($actual, $expected));
});
});
describe('.length', function () {
it('should return the number of nodes inside the context', function () {
$xml = new FluidXml();
$cx = $xml->query('/*');
$actual = $cx->length();
$expected = 1;
\assert($actual === $expected, __($actual, $expected));
$cx = $xml->appendChild(['child1', 'child2'], true);
$actual = $cx->length();
$expected = 2;
\assert($actual === $expected, __($actual, $expected));
$cx = $cx->appendChild(['subchild1', 'subchild2', 'subchild3']);
$actual = $cx->length();
$expected = 2;
\assert($actual === $expected, __($actual, $expected));
$cx = $cx->appendChild(['subchild4', 'subchild5', 'subchild6', 'subchild7'], true);
$actual = $cx->length();
$expected = 8;
\assert($actual === $expected, __($actual, $expected));
});
});
describe('simplexmlToStringWithoutHeaders()', function () {
it('should convert a SimpleXMLElement instance to an XML string without the XML headers (declaration and stylesheets)', function () {
$xml = \simplexml_import_dom((new FluidXml())->dom());
$actual = FluidHelper::simplexmlToStringWithoutHeaders($xml);
$expected = "<doc/>";
\assert($actual === $expected, __($actual, $expected));
});
});
});
describe('CssTranslator', function () {
describe('.xpath()', function () {
$hml = new FluidXml(['html' => ['body' => ['div' => ['p' => ['@class' => 'a', '@id' => '123', ['span']], 'h1' => ['@class' => 'b'], 'p' => ['@class' => 'a b'], 'p' => ['@class' => 'a']]]]]);
$hml->namespace('svg', 'http://svg.org');
$hml->query('//body')->add('svg', true)->add('shape');
it('should support the CSS selector A', function () use($hml) {
$actual = $hml->query('p')->array();
$expected = $hml->query('.//p')->array();
\assert($actual === $expected, __($actual, $expected));
$expected = $hml->query('//p')->array();
\assert($actual === $expected, __($actual, $expected));
});
it('should support the CSS selector ns|A', function () use($hml) {
$actual = $hml->query('svg|shape')->array();
$expected = $hml->query('//svg:shape')->array();
\assert($actual === $expected, __($actual, $expected));
});
it('should support the CSS selector :root', function () use($hml) {
$actual = $hml->query(':root')->array();
$expected = $hml->query('/*')->array();