laravel horizon

vendor/vlucas/phpdotenv/src/Parser.php

@@ -0,0 +1,126 @@
+<?php
+
+namespace Dotenv;
+
+use Dotenv\Exception\InvalidFileException;
+
+class Parser
+{
+    const INITIAL_STATE = 0;
+    const QUOTED_STATE = 1;
+    const ESCAPE_STATE = 2;
+    const WHITESPACE_STATE = 3;
+    const COMMENT_STATE = 4;
+
+    /**
+     * Parse the given variable name.
+     *
+     * @param string $name
+     *
+     * @return string
+     */
+    public static function parseName($name)
+    {
+        return trim(str_replace(array('export ', '\'', '"'), '', $name));
+    }
+
+    /**
+     * Parse the given variable value.
+     *
+     * @param string $value
+     *
+     * @throws \Dotenv\Exception\InvalidFileException
+     *
+     * @return string
+     */
+    public static function parseValue($value)
+    {
+        if ($value === '') {
+            return '';
+        } elseif ($value[0] === '"' || $value[0] === '\'') {
+            return Parser::parseQuotedValue($value);
+        } else {
+            return Parser::parseUnquotedValue($value);
+        }
+    }
+
+    /**
+     * Parse the given quoted value.
+     *
+     * @param string $value
+     *
+     * @throws \Dotenv\Exception\InvalidFileException
+     *
+     * @return string
+     */
+    public static function parseQuotedValue($value)
+    {
+        $data = array_reduce(str_split($value), function ($data, $char) use ($value) {
+            switch ($data[1]) {
+                case Parser::INITIAL_STATE:
+                    if ($char === '"' || $char === '\'') {
+                        return array($data[0], Parser::QUOTED_STATE);
+                    } else {
+                        throw new InvalidFileException(
+                            'Expected the value to start with a quote.'
+                        );
+                    }
+                case Parser::QUOTED_STATE:
+                    if ($char === $value[0]) {
+                        return array($data[0], Parser::WHITESPACE_STATE);
+                    } elseif ($char === '\\') {
+                        return array($data[0], Parser::ESCAPE_STATE);
+                    } else {
+                        return array($data[0].$char, Parser::QUOTED_STATE);
+                    }
+                case Parser::ESCAPE_STATE:
+                    if ($char === $value[0] || $char === '\\') {
+                        return array($data[0].$char, Parser::QUOTED_STATE);
+                    } else {
+                        return array($data[0].'\\'.$char, Parser::QUOTED_STATE);
+                    }
+                case Parser::WHITESPACE_STATE:
+                    if ($char === '#') {
+                        return array($data[0], Parser::COMMENT_STATE);
+                    } elseif (!ctype_space($char)) {
+                        throw new InvalidFileException(
+                            'Dotenv values containing spaces must be surrounded by quotes.'
+                        );
+                    } else {
+                        return array($data[0], Parser::WHITESPACE_STATE);
+                    }
+                case Parser::COMMENT_STATE:
+                    return array($data[0], Parser::COMMENT_STATE);
+            }
+        }, array('', Parser::INITIAL_STATE));
+
+        return trim($data[0]);
+    }
+
+    /**
+     * Parse the given unquoted value.
+     *
+     * @param string $value
+     *
+     * @throws \Dotenv\Exception\InvalidFileException
+     *
+     * @return string
+     */
+    public static function parseUnquotedValue($value)
+    {
+        $parts = explode(' #', $value, 2);
+        $value = trim($parts[0]);
+
+        // Unquoted values cannot contain whitespace
+        if (preg_match('/\s+/', $value) > 0) {
+            // Check if value is a comment (usually triggered when empty value with comment)
+            if (preg_match('/^#/', $value) > 0) {
+                $value = '';
+            } else {
+                throw new InvalidFileException('Dotenv values containing spaces must be surrounded by quotes.');
+            }
+        }
+
+        return trim($value);
+    }
+}