CSSXPath 1.5.0 (#8642)

https://github.com/phpgt/CssXPath/releases/tag/v1.5.0

lib/phpgt/cssxpath/src/ThreadMatcher.php

@@ -0,0 +1,118 @@
+<?php
+
+namespace Gt\CssXPath;
+
+class ThreadMatcher {
+	private CssSelectorLexer $cssSelectorLexer;
+
+	public function __construct(
+		?CssSelectorLexer $cssSelectorLexer = null
+	) {
+		$this->cssSelectorLexer = $cssSelectorLexer
+			?? new CssSelectorLexer();
+	}
+
+	/** @return array<int, array<string, mixed>> */
+	public function collate(
+		string $regex,
+		string $string,
+		?callable $transform = null
+	):array {
+		if($regex === Translator::CSS_REGEX) {
+			return $this->collateCssSelector($string, $transform);
+		}
+
+		preg_match_all(
+			$regex,
+			$string,
+			$matches,
+			PREG_PATTERN_ORDER
+		);
+
+		$set = $this->initialiseSet($matches[0]);
+
+		foreach($matches as $key => $matchedGroup) {
+			if(is_numeric($key)) {
+				continue;
+			}
+
+			$this->collateGroup($set, $key, $matchedGroup, $transform);
+		}
+
+		return $set;
+	}
+
+	/** @return array<int, array<string, mixed>> */
+	private function collateCssSelector(
+		string $selector,
+		?callable $transform
+	):array {
+		return $this->cssSelectorLexer->lex($selector, $transform);
+	}
+
+	/**
+	 * @param array<int, string> $matches
+	 * @return array<int, array<string, mixed>|null>
+	 */
+	private function initialiseSet(array $matches):array {
+		$set = [];
+
+		foreach($matches as $index => $value) {
+			if($value !== "") {
+				$set[$index] = null;
+			}
+		}
+
+		return $set;
+	}
+
+	/**
+	 * @param array<int, array<string, mixed>|null> $set
+	 * @param array<int, string> $matchedGroup
+	 */
+	private function collateGroup(
+		array &$set,
+		string $groupKey,
+		array $matchedGroup,
+		?callable $transform
+	):void {
+		foreach($matchedGroup as $index => $match) {
+			if($match === "") {
+				continue;
+			}
+
+			$toSet = $this->buildMatchPayload($groupKey, $match, $transform);
+			$this->appendMatch($set, $index, $toSet);
+		}
+	}
+
+	/** @return array<string, string> */
+	private function buildMatchPayload(
+		string $groupKey,
+		string $match,
+		?callable $transform
+	):array {
+		if($transform) {
+			return $transform($groupKey, $match);
+		}
+
+		return ["type" => $groupKey, "content" => $match];
+	}
+
+	/**
+	 * @param array<int, array<string, mixed>|null> $set
+	 * @param array<string, string> $toSet
+	 */
+	private function appendMatch(array &$set, int $index, array $toSet):void {
+		if(!isset($set[$index])) {
+			$set[$index] = $toSet;
+			return;
+		}
+
+		if(!isset($set[$index]["detail"])) {
+			$set[$index]["detail"] = [];
+		}
+
+		$set[$index]["detail"][] = $toSet;
+	}
+}