upgraded dependencies

vendor/vlucas/phpdotenv/src/Loader/Lines.php

@@ -0,0 +1,137 @@
+<?php
+
+namespace Dotenv\Loader;
+
+class Lines
+{
+    /**
+     * Process the array of lines of environment variables.
+     *
+     * This will produce an array of entries, one per variable.
+     *
+     * @param string[] $lines
+     *
+     * @return string[]
+     */
+    public static function process(array $lines)
+    {
+        $output = [];
+        $multiline = false;
+        $multilineBuffer = [];
+
+        foreach ($lines as $line) {
+            list($multiline, $line, $multilineBuffer) = self::multilineProcess($multiline, $line, $multilineBuffer);
+
+            if (!$multiline && !self::isCommentOrWhitespace($line)) {
+                $output[] = $line;
+            }
+        }
+
+        return $output;
+    }
+
+    /**
+     * Used to make all multiline variable process.
+     *
+     * @param bool     $multiline
+     * @param string   $line
+     * @param string[] $buffer
+     *
+     * @return array{bool,string,string[]}
+     */
+    private static function multilineProcess($multiline, $line, array $buffer)
+    {
+        $startsOnCurrentLine = $multiline ? false : self::looksLikeMultilineStart($line);
+
+        // check if $line can be multiline variable
+        if ($startsOnCurrentLine) {
+            $multiline = true;
+        }
+
+        if ($multiline) {
+            array_push($buffer, $line);
+
+            if (self::looksLikeMultilineStop($line, $startsOnCurrentLine)) {
+                $multiline = false;
+                $line = implode("\n", $buffer);
+                $buffer = [];
+            }
+        }
+
+        return [$multiline, $line, $buffer];
+    }
+
+    /**
+     * Determine if the given line can be the start of a multiline variable.
+     *
+     * @param string $line
+     *
+     * @return bool
+     */
+    private static function looksLikeMultilineStart($line)
+    {
+        if (strpos($line, '="') === false) {
+            return false;
+        }
+
+        return self::looksLikeMultilineStop($line, true) === false;
+    }
+
+    /**
+     * Determine if the given line can be the start of a multiline variable.
+     *
+     * @param string $line
+     * @param bool   $started
+     *
+     * @return bool
+     */
+    private static function looksLikeMultilineStop($line, $started)
+    {
+        if ($line === '"') {
+            return true;
+        }
+
+        $seen = $started ? 0 : 1;
+
+        foreach (self::getCharPairs(str_replace('\\\\', '', $line)) as $pair) {
+            if ($pair[0] !== '\\' && $pair[1] === '"') {
+                $seen++;
+            }
+        }
+
+        return $seen > 1;
+    }
+
+    /**
+     * Get all pairs of adjacent characters within the line.
+     *
+     * @param string $line
+     *
+     * @return array{array{string,string|null}}
+     */
+    private static function getCharPairs($line)
+    {
+        $chars = str_split($line);
+
+        /** @var array{array{string,string|null}} */
+        return array_map(null, $chars, array_slice($chars, 1));
+    }
+
+    /**
+     * Determine if the line in the file is a comment or whitespace.
+     *
+     * @param string $line
+     *
+     * @return bool
+     */
+    private static function isCommentOrWhitespace($line)
+    {
+        if (trim($line) === '') {
+            return true;
+        }
+
+        $line = ltrim($line);
+
+        return isset($line[0]) && $line[0] === '#';
+    }
+}