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Introduce XPath and XSLT callback functions
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,25 @@ | ||
<?php | ||
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declare(strict_types=1); | ||
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namespace VeeWee\Xml\Dom\Xpath\Configurator; | ||
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use Closure; | ||
use Dom\XPath; | ||
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/** | ||
* @param array<string, (callable(mixed...): mixed)> $functions | ||
* | ||
* @return Closure(XPath): XPath | ||
*/ | ||
function namespaced_functions(string $namespace, string $prefix, array $functions): Closure | ||
{ | ||
return static function (XPath $xpath) use ($namespace, $prefix, $functions) : XPath { | ||
namespaces([$prefix => $namespace])($xpath); | ||
foreach ($functions as $functionName => $callback) { | ||
$xpath->registerPhpFunctionNS($namespace, $functionName, $callback); | ||
} | ||
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return $xpath; | ||
}; | ||
} |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,24 @@ | ||
<?php | ||
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declare(strict_types=1); | ||
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namespace VeeWee\Xml\Xslt\Configurator; | ||
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use Closure; | ||
use XSLTProcessor; | ||
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/** | ||
* @param array<string, (callable(mixed...): mixed)> $functions | ||
* | ||
* @return Closure(XSLTProcessor): XSLTProcessor | ||
*/ | ||
function namespaced_functions(string $namespace, array $functions): Closure | ||
{ | ||
return static function (XSLTProcessor $processor) use ($namespace, $functions) : XSLTProcessor { | ||
foreach ($functions as $functionName => $callback) { | ||
$processor->registerPhpFunctionNS($namespace, $functionName, $callback); | ||
} | ||
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return $processor; | ||
}; | ||
} |
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28 changes: 28 additions & 0 deletions
28
tests/Xml/Dom/Xpath/Configurator/NamespacedFunctionsTest.php
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Original file line number | Diff line number | Diff line change |
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<?php | ||
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declare(strict_types=1); | ||
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namespace VeeWee\Tests\Xml\Dom\Xpath\Configurator; | ||
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use PHPUnit\Framework\TestCase; | ||
use Psl\Type; | ||
use VeeWee\Xml\Dom\Document; | ||
use VeeWee\Xml\Dom\Xpath; | ||
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final class NamespacedFunctionsTest extends TestCase | ||
{ | ||
public function test_it_can_evaluate_with_php_function(): void | ||
{ | ||
$doc = Document::fromXmlString( | ||
$xml = '<hello><item>Jos</item></hello>' | ||
); | ||
$xpath = Xpath::fromDocument($doc, Xpath\Configurator\namespaced_functions( | ||
'http://my-ns', | ||
'my', | ||
['str_replace' => str_replace(...)] | ||
)); | ||
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$result = $xpath->evaluate('my:str_replace("J", "B", string(//item))', Type\string()); | ||
static::assertSame($result, 'Bos'); | ||
} | ||
} |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,70 @@ | ||
<?php | ||
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declare(strict_types=1); | ||
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namespace VeeWee\Tests\Xml\Xslt; | ||
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use PHPUnit\Framework\TestCase; | ||
use VeeWee\Xml\Dom\Document; | ||
use VeeWee\Xml\Exception\RuntimeException; | ||
use VeeWee\Xml\Xslt\Processor; | ||
use function VeeWee\Xml\Xslt\Configurator\namespaced_functions; | ||
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final class NamespacedFunctionsTest extends TestCase | ||
{ | ||
public function test_it_can_use_php_functions(): void | ||
{ | ||
$processor = Processor::fromTemplateDocument( | ||
$this->createTemplate(), | ||
namespaced_functions('http://my-xls', ['strtoupper' => strtoupper(...)]) | ||
); | ||
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$result = $processor->transformDocumentToString( | ||
Document::fromXmlString( | ||
<<<EOXML | ||
<root> | ||
<hello>World</hello> | ||
</root> | ||
EOXML | ||
) | ||
); | ||
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static::assertSame('WORLD', $result); | ||
} | ||
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public function test_it_throws_exception_on_unkown_function(): void | ||
{ | ||
$processor = Processor::fromTemplateDocument( | ||
$this->createTemplate(), | ||
namespaced_functions('http://my-xls', ['substr' => substr(...)]) | ||
); | ||
$doc = Document::fromXmlString( | ||
<<<EOXML | ||
<root> | ||
<hello>World</hello> | ||
</root> | ||
EOXML | ||
); | ||
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$this->expectException(RuntimeException::class); | ||
$this->expectExceptionMessage('strtoupper'); | ||
$processor->transformDocumentToString($doc); | ||
} | ||
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private function createTemplate(): Document | ||
{ | ||
return Document::fromXmlString( | ||
<<<EOXML | ||
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" | ||
xmlns:my="http://my-xls" | ||
xmlns:str="http://exslt.org/strings" | ||
xmlns:xsdl="http://www.w3.org/1999/XSL/Transform"> | ||
<xsl:output method="text" omit-xml-declaration="yes" indent="no"/> | ||
<xsl:template match="/root"> | ||
<xsl:value-of select="my:strtoupper(string(./hello))"/> | ||
</xsl:template> | ||
</xsl:stylesheet> | ||
EOXML | ||
); | ||
} | ||
} |