First Commit

vendor/illuminate/database/Console/Migrations/TableGuesser.php

@@ -0,0 +1,37 @@
+<?php
+
+namespace Illuminate\Database\Console\Migrations;
+
+class TableGuesser
+{
+    const CREATE_PATTERNS = [
+        '/^create_(\w+)_table$/',
+        '/^create_(\w+)$/',
+    ];
+
+    const CHANGE_PATTERNS = [
+        '/_(to|from|in)_(\w+)_table$/',
+        '/_(to|from|in)_(\w+)$/',
+    ];
+
+    /**
+     * Attempt to guess the table name and "creation" status of the given migration.
+     *
+     * @param  string  $migration
+     * @return array
+     */
+    public static function guess($migration)
+    {
+        foreach (self::CREATE_PATTERNS as $pattern) {
+            if (preg_match($pattern, $migration, $matches)) {
+                return [$matches[1], $create = true];
+            }
+        }
+
+        foreach (self::CHANGE_PATTERNS as $pattern) {
+            if (preg_match($pattern, $migration, $matches)) {
+                return [$matches[2], $create = false];
+            }
+        }
+    }
+}