Build modified streamline images

The official image from streamline does not currently work for the arm64
platform. As a temporary measure, the source code and docker build scripts
have been lifted from the official images and are used to build locally.

Some additional modifications are made to reduce overall image size, these
are documented in docker/README.md

docker/streamline-src/vendor/symfony/css-selector/XPath/Extension/AbstractExtension.php

@@ -0,0 +1,50 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\CssSelector\XPath\Extension;
+
+/**
+ * XPath expression translator abstract extension.
+ *
+ * This component is a port of the Python cssselect library,
+ * which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
+ *
+ * @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
+ *
+ * @internal
+ */
+abstract class AbstractExtension implements ExtensionInterface
+{
+    public function getNodeTranslators(): array
+    {
+        return [];
+    }
+
+    public function getCombinationTranslators(): array
+    {
+        return [];
+    }
+
+    public function getFunctionTranslators(): array
+    {
+        return [];
+    }
+
+    public function getPseudoClassTranslators(): array
+    {
+        return [];
+    }
+
+    public function getAttributeMatchingTranslators(): array
+    {
+        return [];
+    }
+}

docker/streamline-src/vendor/symfony/css-selector/XPath/Extension/AttributeMatchingExtension.php

@@ -0,0 +1,113 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\CssSelector\XPath\Extension;
+
+use Symfony\Component\CssSelector\XPath\Translator;
+use Symfony\Component\CssSelector\XPath\XPathExpr;
+
+/**
+ * XPath expression translator attribute extension.
+ *
+ * This component is a port of the Python cssselect library,
+ * which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
+ *
+ * @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
+ *
+ * @internal
+ */
+class AttributeMatchingExtension extends AbstractExtension
+{
+    public function getAttributeMatchingTranslators(): array
+    {
+        return [
+            'exists' => $this->translateExists(...),
+            '=' => $this->translateEquals(...),
+            '~=' => $this->translateIncludes(...),
+            '|=' => $this->translateDashMatch(...),
+            '^=' => $this->translatePrefixMatch(...),
+            '$=' => $this->translateSuffixMatch(...),
+            '*=' => $this->translateSubstringMatch(...),
+            '!=' => $this->translateDifferent(...),
+        ];
+    }
+
+    public function translateExists(XPathExpr $xpath, string $attribute, ?string $value): XPathExpr
+    {
+        return $xpath->addCondition($attribute);
+    }
+
+    public function translateEquals(XPathExpr $xpath, string $attribute, ?string $value): XPathExpr
+    {
+        return $xpath->addCondition(sprintf('%s = %s', $attribute, Translator::getXpathLiteral($value)));
+    }
+
+    public function translateIncludes(XPathExpr $xpath, string $attribute, ?string $value): XPathExpr
+    {
+        return $xpath->addCondition($value ? sprintf(
+            '%1$s and contains(concat(\' \', normalize-space(%1$s), \' \'), %2$s)',
+            $attribute,
+            Translator::getXpathLiteral(' '.$value.' ')
+        ) : '0');
+    }
+
+    public function translateDashMatch(XPathExpr $xpath, string $attribute, ?string $value): XPathExpr
+    {
+        return $xpath->addCondition(sprintf(
+            '%1$s and (%1$s = %2$s or starts-with(%1$s, %3$s))',
+            $attribute,
+            Translator::getXpathLiteral($value),
+            Translator::getXpathLiteral($value.'-')
+        ));
+    }
+
+    public function translatePrefixMatch(XPathExpr $xpath, string $attribute, ?string $value): XPathExpr
+    {
+        return $xpath->addCondition($value ? sprintf(
+            '%1$s and starts-with(%1$s, %2$s)',
+            $attribute,
+            Translator::getXpathLiteral($value)
+        ) : '0');
+    }
+
+    public function translateSuffixMatch(XPathExpr $xpath, string $attribute, ?string $value): XPathExpr
+    {
+        return $xpath->addCondition($value ? sprintf(
+            '%1$s and substring(%1$s, string-length(%1$s)-%2$s) = %3$s',
+            $attribute,
+            \strlen($value) - 1,
+            Translator::getXpathLiteral($value)
+        ) : '0');
+    }
+
+    public function translateSubstringMatch(XPathExpr $xpath, string $attribute, ?string $value): XPathExpr
+    {
+        return $xpath->addCondition($value ? sprintf(
+            '%1$s and contains(%1$s, %2$s)',
+            $attribute,
+            Translator::getXpathLiteral($value)
+        ) : '0');
+    }
+
+    public function translateDifferent(XPathExpr $xpath, string $attribute, ?string $value): XPathExpr
+    {
+        return $xpath->addCondition(sprintf(
+            $value ? 'not(%1$s) or %1$s != %2$s' : '%s != %s',
+            $attribute,
+            Translator::getXpathLiteral($value)
+        ));
+    }
+
+    public function getName(): string
+    {
+        return 'attribute-matching';
+    }
+}

docker/streamline-src/vendor/symfony/css-selector/XPath/Extension/CombinationExtension.php

@@ -0,0 +1,65 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\CssSelector\XPath\Extension;
+
+use Symfony\Component\CssSelector\XPath\XPathExpr;
+
+/**
+ * XPath expression translator combination extension.
+ *
+ * This component is a port of the Python cssselect library,
+ * which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
+ *
+ * @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
+ *
+ * @internal
+ */
+class CombinationExtension extends AbstractExtension
+{
+    public function getCombinationTranslators(): array
+    {
+        return [
+            ' ' => $this->translateDescendant(...),
+            '>' => $this->translateChild(...),
+            '+' => $this->translateDirectAdjacent(...),
+            '~' => $this->translateIndirectAdjacent(...),
+        ];
+    }
+
+    public function translateDescendant(XPathExpr $xpath, XPathExpr $combinedXpath): XPathExpr
+    {
+        return $xpath->join('/descendant-or-self::*/', $combinedXpath);
+    }
+
+    public function translateChild(XPathExpr $xpath, XPathExpr $combinedXpath): XPathExpr
+    {
+        return $xpath->join('/', $combinedXpath);
+    }
+
+    public function translateDirectAdjacent(XPathExpr $xpath, XPathExpr $combinedXpath): XPathExpr
+    {
+        return $xpath
+            ->join('/following-sibling::', $combinedXpath)
+            ->addNameTest()
+            ->addCondition('position() = 1');
+    }
+
+    public function translateIndirectAdjacent(XPathExpr $xpath, XPathExpr $combinedXpath): XPathExpr
+    {
+        return $xpath->join('/following-sibling::', $combinedXpath);
+    }
+
+    public function getName(): string
+    {
+        return 'combination';
+    }
+}

docker/streamline-src/vendor/symfony/css-selector/XPath/Extension/ExtensionInterface.php

@@ -0,0 +1,67 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\CssSelector\XPath\Extension;
+
+/**
+ * XPath expression translator extension interface.
+ *
+ * This component is a port of the Python cssselect library,
+ * which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
+ *
+ * @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
+ *
+ * @internal
+ */
+interface ExtensionInterface
+{
+    /**
+     * Returns node translators.
+     *
+     * These callables will receive the node as first argument and the translator as second argument.
+     *
+     * @return callable[]
+     */
+    public function getNodeTranslators(): array;
+
+    /**
+     * Returns combination translators.
+     *
+     * @return callable[]
+     */
+    public function getCombinationTranslators(): array;
+
+    /**
+     * Returns function translators.
+     *
+     * @return callable[]
+     */
+    public function getFunctionTranslators(): array;
+
+    /**
+     * Returns pseudo-class translators.
+     *
+     * @return callable[]
+     */
+    public function getPseudoClassTranslators(): array;
+
+    /**
+     * Returns attribute operation translators.
+     *
+     * @return callable[]
+     */
+    public function getAttributeMatchingTranslators(): array;
+
+    /**
+     * Returns extension name.
+     */
+    public function getName(): string;
+}

docker/streamline-src/vendor/symfony/css-selector/XPath/Extension/FunctionExtension.php

@@ -0,0 +1,165 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\CssSelector\XPath\Extension;
+
+use Symfony\Component\CssSelector\Exception\ExpressionErrorException;
+use Symfony\Component\CssSelector\Exception\SyntaxErrorException;
+use Symfony\Component\CssSelector\Node\FunctionNode;
+use Symfony\Component\CssSelector\Parser\Parser;
+use Symfony\Component\CssSelector\XPath\Translator;
+use Symfony\Component\CssSelector\XPath\XPathExpr;
+
+/**
+ * XPath expression translator function extension.
+ *
+ * This component is a port of the Python cssselect library,
+ * which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
+ *
+ * @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
+ *
+ * @internal
+ */
+class FunctionExtension extends AbstractExtension
+{
+    public function getFunctionTranslators(): array
+    {
+        return [
+            'nth-child' => $this->translateNthChild(...),
+            'nth-last-child' => $this->translateNthLastChild(...),
+            'nth-of-type' => $this->translateNthOfType(...),
+            'nth-last-of-type' => $this->translateNthLastOfType(...),
+            'contains' => $this->translateContains(...),
+            'lang' => $this->translateLang(...),
+        ];
+    }
+
+    /**
+     * @throws ExpressionErrorException
+     */
+    public function translateNthChild(XPathExpr $xpath, FunctionNode $function, bool $last = false, bool $addNameTest = true): XPathExpr
+    {
+        try {
+            [$a, $b] = Parser::parseSeries($function->getArguments());
+        } catch (SyntaxErrorException $e) {
+            throw new ExpressionErrorException(sprintf('Invalid series: "%s".', implode('", "', $function->getArguments())), 0, $e);
+        }
+
+        $xpath->addStarPrefix();
+        if ($addNameTest) {
+            $xpath->addNameTest();
+        }
+
+        if (0 === $a) {
+            return $xpath->addCondition('position() = '.($last ? 'last() - '.($b - 1) : $b));
+        }
+
+        if ($a < 0) {
+            if ($b < 1) {
+                return $xpath->addCondition('false()');
+            }
+
+            $sign = '<=';
+        } else {
+            $sign = '>=';
+        }
+
+        $expr = 'position()';
+
+        if ($last) {
+            $expr = 'last() - '.$expr;
+            --$b;
+        }
+
+        if (0 !== $b) {
+            $expr .= ' - '.$b;
+        }
+
+        $conditions = [sprintf('%s %s 0', $expr, $sign)];
+
+        if (1 !== $a && -1 !== $a) {
+            $conditions[] = sprintf('(%s) mod %d = 0', $expr, $a);
+        }
+
+        return $xpath->addCondition(implode(' and ', $conditions));
+
+        // todo: handle an+b, odd, even
+        // an+b means every-a, plus b, e.g., 2n+1 means odd
+        // 0n+b means b
+        // n+0 means a=1, i.e., all elements
+        // an means every a elements, i.e., 2n means even
+        // -n means -1n
+        // -1n+6 means elements 6 and previous
+    }
+
+    public function translateNthLastChild(XPathExpr $xpath, FunctionNode $function): XPathExpr
+    {
+        return $this->translateNthChild($xpath, $function, true);
+    }
+
+    public function translateNthOfType(XPathExpr $xpath, FunctionNode $function): XPathExpr
+    {
+        return $this->translateNthChild($xpath, $function, false, false);
+    }
+
+    /**
+     * @throws ExpressionErrorException
+     */
+    public function translateNthLastOfType(XPathExpr $xpath, FunctionNode $function): XPathExpr
+    {
+        if ('*' === $xpath->getElement()) {
+            throw new ExpressionErrorException('"*:nth-of-type()" is not implemented.');
+        }
+
+        return $this->translateNthChild($xpath, $function, true, false);
+    }
+
+    /**
+     * @throws ExpressionErrorException
+     */
+    public function translateContains(XPathExpr $xpath, FunctionNode $function): XPathExpr
+    {
+        $arguments = $function->getArguments();
+        foreach ($arguments as $token) {
+            if (!($token->isString() || $token->isIdentifier())) {
+                throw new ExpressionErrorException('Expected a single string or identifier for :contains(), got '.implode(', ', $arguments));
+            }
+        }
+
+        return $xpath->addCondition(sprintf(
+            'contains(string(.), %s)',
+            Translator::getXpathLiteral($arguments[0]->getValue())
+        ));
+    }
+
+    /**
+     * @throws ExpressionErrorException
+     */
+    public function translateLang(XPathExpr $xpath, FunctionNode $function): XPathExpr
+    {
+        $arguments = $function->getArguments();
+        foreach ($arguments as $token) {
+            if (!($token->isString() || $token->isIdentifier())) {
+                throw new ExpressionErrorException('Expected a single string or identifier for :lang(), got '.implode(', ', $arguments));
+            }
+        }
+
+        return $xpath->addCondition(sprintf(
+            'lang(%s)',
+            Translator::getXpathLiteral($arguments[0]->getValue())
+        ));
+    }
+
+    public function getName(): string
+    {
+        return 'function';
+    }
+}

docker/streamline-src/vendor/symfony/css-selector/XPath/Extension/HtmlExtension.php

@@ -0,0 +1,178 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\CssSelector\XPath\Extension;
+
+use Symfony\Component\CssSelector\Exception\ExpressionErrorException;
+use Symfony\Component\CssSelector\Node\FunctionNode;
+use Symfony\Component\CssSelector\XPath\Translator;
+use Symfony\Component\CssSelector\XPath\XPathExpr;
+
+/**
+ * XPath expression translator HTML extension.
+ *
+ * This component is a port of the Python cssselect library,
+ * which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
+ *
+ * @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
+ *
+ * @internal
+ */
+class HtmlExtension extends AbstractExtension
+{
+    public function __construct(Translator $translator)
+    {
+        $translator
+            ->getExtension('node')
+            ->setFlag(NodeExtension::ELEMENT_NAME_IN_LOWER_CASE, true)
+            ->setFlag(NodeExtension::ATTRIBUTE_NAME_IN_LOWER_CASE, true);
+    }
+
+    public function getPseudoClassTranslators(): array
+    {
+        return [
+            'checked' => $this->translateChecked(...),
+            'link' => $this->translateLink(...),
+            'disabled' => $this->translateDisabled(...),
+            'enabled' => $this->translateEnabled(...),
+            'selected' => $this->translateSelected(...),
+            'invalid' => $this->translateInvalid(...),
+            'hover' => $this->translateHover(...),
+            'visited' => $this->translateVisited(...),
+        ];
+    }
+
+    public function getFunctionTranslators(): array
+    {
+        return [
+            'lang' => $this->translateLang(...),
+        ];
+    }
+
+    public function translateChecked(XPathExpr $xpath): XPathExpr
+    {
+        return $xpath->addCondition(
+            '(@checked '
+            ."and (name(.) = 'input' or name(.) = 'command')"
+            ."and (@type = 'checkbox' or @type = 'radio'))"
+        );
+    }
+
+    public function translateLink(XPathExpr $xpath): XPathExpr
+    {
+        return $xpath->addCondition("@href and (name(.) = 'a' or name(.) = 'link' or name(.) = 'area')");
+    }
+
+    public function translateDisabled(XPathExpr $xpath): XPathExpr
+    {
+        return $xpath->addCondition(
+            '('
+                .'@disabled and'
+                .'('
+                    ."(name(.) = 'input' and @type != 'hidden')"
+                    ." or name(.) = 'button'"
+                    ." or name(.) = 'select'"
+                    ." or name(.) = 'textarea'"
+                    ." or name(.) = 'command'"
+                    ." or name(.) = 'fieldset'"
+                    ." or name(.) = 'optgroup'"
+                    ." or name(.) = 'option'"
+                .')'
+            .') or ('
+                ."(name(.) = 'input' and @type != 'hidden')"
+                ." or name(.) = 'button'"
+                ." or name(.) = 'select'"
+                ." or name(.) = 'textarea'"
+            .')'
+            .' and ancestor::fieldset[@disabled]'
+        );
+        // todo: in the second half, add "and is not a descendant of that fieldset element's first legend element child, if any."
+    }
+
+    public function translateEnabled(XPathExpr $xpath): XPathExpr
+    {
+        return $xpath->addCondition(
+            '('
+                .'@href and ('
+                    ."name(.) = 'a'"
+                    ." or name(.) = 'link'"
+                    ." or name(.) = 'area'"
+                .')'
+            .') or ('
+                .'('
+                    ."name(.) = 'command'"
+                    ." or name(.) = 'fieldset'"
+                    ." or name(.) = 'optgroup'"
+                .')'
+                .' and not(@disabled)'
+            .') or ('
+                .'('
+                    ."(name(.) = 'input' and @type != 'hidden')"
+                    ." or name(.) = 'button'"
+                    ." or name(.) = 'select'"
+                    ." or name(.) = 'textarea'"
+                    ." or name(.) = 'keygen'"
+                .')'
+                .' and not (@disabled or ancestor::fieldset[@disabled])'
+            .') or ('
+                ."name(.) = 'option' and not("
+                    .'@disabled or ancestor::optgroup[@disabled]'
+                .')'
+            .')'
+        );
+    }
+
+    /**
+     * @throws ExpressionErrorException
+     */
+    public function translateLang(XPathExpr $xpath, FunctionNode $function): XPathExpr
+    {
+        $arguments = $function->getArguments();
+        foreach ($arguments as $token) {
+            if (!($token->isString() || $token->isIdentifier())) {
+                throw new ExpressionErrorException('Expected a single string or identifier for :lang(), got '.implode(', ', $arguments));
+            }
+        }
+
+        return $xpath->addCondition(sprintf(
+            'ancestor-or-self::*[@lang][1][starts-with(concat('
+            ."translate(@%s, 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz'), '-')"
+            .', %s)]',
+            'lang',
+            Translator::getXpathLiteral(strtolower($arguments[0]->getValue()).'-')
+        ));
+    }
+
+    public function translateSelected(XPathExpr $xpath): XPathExpr
+    {
+        return $xpath->addCondition("(@selected and name(.) = 'option')");
+    }
+
+    public function translateInvalid(XPathExpr $xpath): XPathExpr
+    {
+        return $xpath->addCondition('0');
+    }
+
+    public function translateHover(XPathExpr $xpath): XPathExpr
+    {
+        return $xpath->addCondition('0');
+    }
+
+    public function translateVisited(XPathExpr $xpath): XPathExpr
+    {
+        return $xpath->addCondition('0');
+    }
+
+    public function getName(): string
+    {
+        return 'html';
+    }
+}

docker/streamline-src/vendor/symfony/css-selector/XPath/Extension/NodeExtension.php

@@ -0,0 +1,191 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\CssSelector\XPath\Extension;
+
+use Symfony\Component\CssSelector\Node;
+use Symfony\Component\CssSelector\XPath\Translator;
+use Symfony\Component\CssSelector\XPath\XPathExpr;
+
+/**
+ * XPath expression translator node extension.
+ *
+ * This component is a port of the Python cssselect library,
+ * which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
+ *
+ * @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
+ *
+ * @internal
+ */
+class NodeExtension extends AbstractExtension
+{
+    public const ELEMENT_NAME_IN_LOWER_CASE = 1;
+    public const ATTRIBUTE_NAME_IN_LOWER_CASE = 2;
+    public const ATTRIBUTE_VALUE_IN_LOWER_CASE = 4;
+
+    private int $flags;
+
+    public function __construct(int $flags = 0)
+    {
+        $this->flags = $flags;
+    }
+
+    /**
+     * @return $this
+     */
+    public function setFlag(int $flag, bool $on): static
+    {
+        if ($on && !$this->hasFlag($flag)) {
+            $this->flags += $flag;
+        }
+
+        if (!$on && $this->hasFlag($flag)) {
+            $this->flags -= $flag;
+        }
+
+        return $this;
+    }
+
+    public function hasFlag(int $flag): bool
+    {
+        return (bool) ($this->flags & $flag);
+    }
+
+    public function getNodeTranslators(): array
+    {
+        return [
+            'Selector' => $this->translateSelector(...),
+            'CombinedSelector' => $this->translateCombinedSelector(...),
+            'Negation' => $this->translateNegation(...),
+            'Function' => $this->translateFunction(...),
+            'Pseudo' => $this->translatePseudo(...),
+            'Attribute' => $this->translateAttribute(...),
+            'Class' => $this->translateClass(...),
+            'Hash' => $this->translateHash(...),
+            'Element' => $this->translateElement(...),
+        ];
+    }
+
+    public function translateSelector(Node\SelectorNode $node, Translator $translator): XPathExpr
+    {
+        return $translator->nodeToXPath($node->getTree());
+    }
+
+    public function translateCombinedSelector(Node\CombinedSelectorNode $node, Translator $translator): XPathExpr
+    {
+        return $translator->addCombination($node->getCombinator(), $node->getSelector(), $node->getSubSelector());
+    }
+
+    public function translateNegation(Node\NegationNode $node, Translator $translator): XPathExpr
+    {
+        $xpath = $translator->nodeToXPath($node->getSelector());
+        $subXpath = $translator->nodeToXPath($node->getSubSelector());
+        $subXpath->addNameTest();
+
+        if ($subXpath->getCondition()) {
+            return $xpath->addCondition(sprintf('not(%s)', $subXpath->getCondition()));
+        }
+
+        return $xpath->addCondition('0');
+    }
+
+    public function translateFunction(Node\FunctionNode $node, Translator $translator): XPathExpr
+    {
+        $xpath = $translator->nodeToXPath($node->getSelector());
+
+        return $translator->addFunction($xpath, $node);
+    }
+
+    public function translatePseudo(Node\PseudoNode $node, Translator $translator): XPathExpr
+    {
+        $xpath = $translator->nodeToXPath($node->getSelector());
+
+        return $translator->addPseudoClass($xpath, $node->getIdentifier());
+    }
+
+    public function translateAttribute(Node\AttributeNode $node, Translator $translator): XPathExpr
+    {
+        $name = $node->getAttribute();
+        $safe = $this->isSafeName($name);
+
+        if ($this->hasFlag(self::ATTRIBUTE_NAME_IN_LOWER_CASE)) {
+            $name = strtolower($name);
+        }
+
+        if ($node->getNamespace()) {
+            $name = sprintf('%s:%s', $node->getNamespace(), $name);
+            $safe = $safe && $this->isSafeName($node->getNamespace());
+        }
+
+        $attribute = $safe ? '@'.$name : sprintf('attribute::*[name() = %s]', Translator::getXpathLiteral($name));
+        $value = $node->getValue();
+        $xpath = $translator->nodeToXPath($node->getSelector());
+
+        if ($this->hasFlag(self::ATTRIBUTE_VALUE_IN_LOWER_CASE)) {
+            $value = strtolower($value);
+        }
+
+        return $translator->addAttributeMatching($xpath, $node->getOperator(), $attribute, $value);
+    }
+
+    public function translateClass(Node\ClassNode $node, Translator $translator): XPathExpr
+    {
+        $xpath = $translator->nodeToXPath($node->getSelector());
+
+        return $translator->addAttributeMatching($xpath, '~=', '@class', $node->getName());
+    }
+
+    public function translateHash(Node\HashNode $node, Translator $translator): XPathExpr
+    {
+        $xpath = $translator->nodeToXPath($node->getSelector());
+
+        return $translator->addAttributeMatching($xpath, '=', '@id', $node->getId());
+    }
+
+    public function translateElement(Node\ElementNode $node): XPathExpr
+    {
+        $element = $node->getElement();
+
+        if ($element && $this->hasFlag(self::ELEMENT_NAME_IN_LOWER_CASE)) {
+            $element = strtolower($element);
+        }
+
+        if ($element) {
+            $safe = $this->isSafeName($element);
+        } else {
+            $element = '*';
+            $safe = true;
+        }
+
+        if ($node->getNamespace()) {
+            $element = sprintf('%s:%s', $node->getNamespace(), $element);
+            $safe = $safe && $this->isSafeName($node->getNamespace());
+        }
+
+        $xpath = new XPathExpr('', $element);
+
+        if (!$safe) {
+            $xpath->addNameTest();
+        }
+
+        return $xpath;
+    }
+
+    public function getName(): string
+    {
+        return 'node';
+    }
+
+    private function isSafeName(string $name): bool
+    {
+        return 0 < preg_match('~^[a-zA-Z_][a-zA-Z0-9_.-]*$~', $name);
+    }
+}

docker/streamline-src/vendor/symfony/css-selector/XPath/Extension/PseudoClassExtension.php

@@ -0,0 +1,122 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\CssSelector\XPath\Extension;
+
+use Symfony\Component\CssSelector\Exception\ExpressionErrorException;
+use Symfony\Component\CssSelector\XPath\XPathExpr;
+
+/**
+ * XPath expression translator pseudo-class extension.
+ *
+ * This component is a port of the Python cssselect library,
+ * which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect.
+ *
+ * @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
+ *
+ * @internal
+ */
+class PseudoClassExtension extends AbstractExtension
+{
+    public function getPseudoClassTranslators(): array
+    {
+        return [
+            'root' => $this->translateRoot(...),
+            'scope' => $this->translateScopePseudo(...),
+            'first-child' => $this->translateFirstChild(...),
+            'last-child' => $this->translateLastChild(...),
+            'first-of-type' => $this->translateFirstOfType(...),
+            'last-of-type' => $this->translateLastOfType(...),
+            'only-child' => $this->translateOnlyChild(...),
+            'only-of-type' => $this->translateOnlyOfType(...),
+            'empty' => $this->translateEmpty(...),
+        ];
+    }
+
+    public function translateRoot(XPathExpr $xpath): XPathExpr
+    {
+        return $xpath->addCondition('not(parent::*)');
+    }
+
+    public function translateScopePseudo(XPathExpr $xpath): XPathExpr
+    {
+        return $xpath->addCondition('1');
+    }
+
+    public function translateFirstChild(XPathExpr $xpath): XPathExpr
+    {
+        return $xpath
+            ->addStarPrefix()
+            ->addNameTest()
+            ->addCondition('position() = 1');
+    }
+
+    public function translateLastChild(XPathExpr $xpath): XPathExpr
+    {
+        return $xpath
+            ->addStarPrefix()
+            ->addNameTest()
+            ->addCondition('position() = last()');
+    }
+
+    /**
+     * @throws ExpressionErrorException
+     */
+    public function translateFirstOfType(XPathExpr $xpath): XPathExpr
+    {
+        if ('*' === $xpath->getElement()) {
+            throw new ExpressionErrorException('"*:first-of-type" is not implemented.');
+        }
+
+        return $xpath
+            ->addStarPrefix()
+            ->addCondition('position() = 1');
+    }
+
+    /**
+     * @throws ExpressionErrorException
+     */
+    public function translateLastOfType(XPathExpr $xpath): XPathExpr
+    {
+        if ('*' === $xpath->getElement()) {
+            throw new ExpressionErrorException('"*:last-of-type" is not implemented.');
+        }
+
+        return $xpath
+            ->addStarPrefix()
+            ->addCondition('position() = last()');
+    }
+
+    public function translateOnlyChild(XPathExpr $xpath): XPathExpr
+    {
+        return $xpath
+            ->addStarPrefix()
+            ->addNameTest()
+            ->addCondition('last() = 1');
+    }
+
+    public function translateOnlyOfType(XPathExpr $xpath): XPathExpr
+    {
+        $element = $xpath->getElement();
+
+        return $xpath->addCondition(sprintf('count(preceding-sibling::%s)=0 and count(following-sibling::%s)=0', $element, $element));
+    }
+
+    public function translateEmpty(XPathExpr $xpath): XPathExpr
+    {
+        return $xpath->addCondition('not(*) and not(string-length())');
+    }
+
+    public function getName(): string
+    {
+        return 'pseudo-class';
+    }
+}