From 1abb261ceaaa30ca2ad8ed14b0162ed81bb4724a Mon Sep 17 00:00:00 2001
From: Alexandre Alapetite <alexandre@alapetite.fr>
Date: Sat, 25 Oct 2025 11:22:09 +0200
Subject: CssXPath: Implement ~ subsequent-sibling (#8154)

* CssXPath: Implement ~ Subsequent-sibling
fix https://github.com/FreshRSS/FreshRSS/issues/8143
Upstream PR https://github.com/phpgt/CssXPath/pull/231

* Use CssXPath release v1.4.0
https://github.com/phpgt/CssXPath/releases/tag/v1.4.0
---
 lib/phpgt/cssxpath/README.md          | 10 ++++++++--
 lib/phpgt/cssxpath/src/Translator.php | 15 ++++++++++++---
 2 files changed, 20 insertions(+), 5 deletions(-)

(limited to 'lib/phpgt')

diff --git a/lib/phpgt/cssxpath/README.md b/lib/phpgt/cssxpath/README.md
index 048547442..a1777c423 100644
--- a/lib/phpgt/cssxpath/README.md
+++ b/lib/phpgt/cssxpath/README.md
@@ -1,5 +1,5 @@
-Translate CSS selectors to XPath queries
-========================================
+Translate CSS selectors to XPath queries.
+=========================================
 
 A lightweight and dependency free CSS to XPath translator. This repository is used to bring modern DOM functionality like [`querySelectorAll()`][qsa] to PHP in the [PHP.Gt/Dom][gt-dom] project.
 
@@ -61,3 +61,9 @@ It's perhaps worth noting that for XML-style matching to work, you must load the
 
 [qsa]: https://developer.mozilla.org/en-US/docs/Web/API/Document/querySelectorAll
 [gt-dom]: https://www.php.gt/dom
+
+# Proudly sponsored by
+
+[JetBrains Open Source sponsorship program](https://www.jetbrains.com/community/opensource/)
+
+[![JetBrains logo.](https://resources.jetbrains.com/storage/products/company/brand/logos/jetbrains.svg)](https://www.jetbrains.com/community/opensource/)
diff --git a/lib/phpgt/cssxpath/src/Translator.php b/lib/phpgt/cssxpath/src/Translator.php
index 7bb11265c..e5802fd77 100644
--- a/lib/phpgt/cssxpath/src/Translator.php
+++ b/lib/phpgt/cssxpath/src/Translator.php
@@ -12,6 +12,7 @@ class Translator {
 		. '|(#(?P<id>[\w-]*))'
 		. '|(\.(?P<class>[\w-]*))'
 		. '|(?P<sibling>\s*\+\s*)'
+		. '|(?P<subsequentsibling>\s*~\s*)'
 		. "|(\[(?P<attribute>[\w-]*)((?P<attribute_equals>[=~$|^*]+)(?P<attribute_value>(.+\[\]'?)|[^\]]+))*\])+"
 		. '|(?P<descendant>\s+)'
 		. '/';
@@ -24,8 +25,8 @@ class Translator {
 	const EQUALS_STARTS_WITH = "^=";
 
 	public function __construct(
-			protected string $cssSelector, 
-			protected string $prefix = ".//", 
+			protected string $cssSelector,
+			protected string $prefix = ".//",
 			protected bool $htmlMode = true
 		) {
 	}
@@ -198,7 +199,7 @@ class Translator {
 							"[last()]"
 						);
 					}
-					break;					
+					break;
 
 				}
 				break;
@@ -235,6 +236,14 @@ class Translator {
 				$hasElement = false;
 				break;
 
+			case "subsequentsibling":
+				array_push(
+					$xpath,
+					"/following-sibling::"
+				);
+				$hasElement = false;
+				break;
+
 			case "attribute":
 				if(!$hasElement) {
 					array_push($xpath, "*");
-- 
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