From 4ce65d59ca91871cfd126497158200a818720bce Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sat, 13 Apr 2024 13:30:08 +0200
Subject: Adding upstream version 0.13.1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 vendor/wikimedia/less.php/lib/Less/Environment.php | 153 +++++++++++++++++++++
 1 file changed, 153 insertions(+)
 create mode 100644 vendor/wikimedia/less.php/lib/Less/Environment.php

(limited to 'vendor/wikimedia/less.php/lib/Less/Environment.php')

diff --git a/vendor/wikimedia/less.php/lib/Less/Environment.php b/vendor/wikimedia/less.php/lib/Less/Environment.php
new file mode 100644
index 0000000..bfc3825
--- /dev/null
+++ b/vendor/wikimedia/less.php/lib/Less/Environment.php
@@ -0,0 +1,153 @@
+<?php
+/**
+ * @private
+ */
+class Less_Environment {
+
+	/**
+	 * Information about the current file - for error reporting and importing and making urls relative etc.
+	 *
+	 * - rootpath: rootpath to append to URLs
+	 *
+	 * @var array|null $currentFileInfo;
+	 */
+	public $currentFileInfo;
+
+	/* Whether we are currently importing multiple copies */
+	public $importMultiple = false;
+
+	/**
+	 * @var array
+	 */
+	public $frames = [];
+
+	/**
+	 * @var array
+	 */
+	public $mediaBlocks = [];
+
+	/**
+	 * @var array
+	 */
+	public $mediaPath = [];
+
+	public static $parensStack = 0;
+
+	public static $tabLevel = 0;
+
+	public static $lastRule = false;
+
+	public static $_outputMap;
+
+	public static $mixin_stack = 0;
+
+	/**
+	 * @var array
+	 */
+	public $functions = [];
+
+	public function Init() {
+		self::$parensStack = 0;
+		self::$tabLevel = 0;
+		self::$lastRule = false;
+		self::$mixin_stack = 0;
+
+		if ( Less_Parser::$options['compress'] ) {
+
+			self::$_outputMap = [
+				','	=> ',',
+				': ' => ':',
+				''  => '',
+				' ' => ' ',
+				':' => ' :',
+				'+' => '+',
+				'~' => '~',
+				'>' => '>',
+				'|' => '|',
+				'^' => '^',
+				'^^' => '^^'
+			];
+
+		} else {
+
+			self::$_outputMap = [
+				','	=> ', ',
+				': ' => ': ',
+				''  => '',
+				' ' => ' ',
+				':' => ' :',
+				'+' => ' + ',
+				'~' => ' ~ ',
+				'>' => ' > ',
+				'|' => '|',
+				'^' => ' ^ ',
+				'^^' => ' ^^ '
+			];
+
+		}
+	}
+
+	public function copyEvalEnv( $frames = [] ) {
+		$new_env = new Less_Environment();
+		$new_env->frames = $frames;
+		return $new_env;
+	}
+
+	public static function isMathOn() {
+		return !Less_Parser::$options['strictMath'] || self::$parensStack;
+	}
+
+	public static function isPathRelative( $path ) {
+		return !preg_match( '/^(?:[a-z-]+:|\/)/', $path );
+	}
+
+	/**
+	 * Canonicalize a path by resolving references to '/./', '/../'
+	 * Does not remove leading "../"
+	 * @param string $path or url
+	 * @return string Canonicalized path
+	 */
+	public static function normalizePath( $path ) {
+		$segments = explode( '/', $path );
+		$segments = array_reverse( $segments );
+
+		$path = [];
+		$path_len = 0;
+
+		while ( $segments ) {
+			$segment = array_pop( $segments );
+			switch ( $segment ) {
+
+				case '.':
+					break;
+
+				case '..':
+					// @phan-suppress-next-line PhanTypeInvalidDimOffset False positive
+					if ( !$path_len || ( $path[$path_len - 1] === '..' ) ) {
+						$path[] = $segment;
+						$path_len++;
+					} else {
+						array_pop( $path );
+						$path_len--;
+					}
+					break;
+
+				default:
+					$path[] = $segment;
+					$path_len++;
+					break;
+			}
+		}
+
+		return implode( '/', $path );
+	}
+
+	public function unshiftFrame( $frame ) {
+		array_unshift( $this->frames, $frame );
+	}
+
+	public function shiftFrame() {
+		return array_shift( $this->frames );
+	}
+
+}
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