CSSXPath 1.5.0 (#8642)

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

lib/phpgt/cssxpath/src/XPathExpression.php

@@ -0,0 +1,54 @@
+<?php
+
+namespace Gt\CssXPath;
+
+class XPathExpression {
+	/** @var array<int, string> */
+	private array $parts;
+	private bool $hasElement = false;
+
+	public function __construct(string $prefix) {
+		$this->parts = [$prefix];
+	}
+
+	public function appendElement(string $element, bool $htmlMode):void {
+		$this->parts[] = $htmlMode ? strtolower($element) : $element;
+		$this->hasElement = true;
+	}
+
+	public function ensureElement():void {
+		if($this->hasElement) {
+			return;
+		}
+
+		$this->parts[] = "*";
+		$this->hasElement = true;
+	}
+
+	public function appendFragment(string $fragment):void {
+		$this->parts[] = $fragment;
+	}
+
+	public function markElementMissing():void {
+		$this->hasElement = false;
+	}
+
+	public function prependToLast(string $prefix):void {
+		$index = count($this->parts) - 1;
+		$this->parts[$index] = $prefix . $this->parts[$index];
+	}
+
+	public function replaceInLast(string $search, string $replace):void {
+		$index = count($this->parts) - 1;
+		$this->parts[$index] = str_replace($search, $replace, $this->parts[$index]);
+	}
+
+	public function lastPartEndsWith(string $suffix):bool {
+		$index = count($this->parts) - 1;
+		return substr($this->parts[$index], -strlen($suffix)) === $suffix;
+	}
+
+	public function toString():string {
+		return implode("", $this->parts);
+	}
+}