--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/includes/sql_parse.php	Wed Apr 09 19:27:02 2008 -0400
@@ -0,0 +1,149 @@
+<?php
+
+/*
+ * Enano - an open-source CMS capable of wiki functions, Drupal-like sidebar blocks, and everything in between
+ * Version 1.1.1
+ * Copyright (C) 2006-2007 Dan Fuhry
+ * Installation package
+ * sql_parse.php - SQL query splitter and templater
+ *
+ * This program is Free Software; you can redistribute and/or modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
+ */
+
+/**
+ * Parses a full file of SQL into individual queries. Also includes substitution (template) functions.
+ * @package Enano
+ * @subpackage Installer
+ * @author Dan Fuhry
+ */
+
+class SQL_Parser
+{
+  /**
+   * The SQL to be parsed.
+   * @var string
+   * @access private
+   */
+  
+  private $sql_string;
+  
+  /**
+   * Parsed SQL array
+   * @var array
+   * @access private
+   */
+  
+  private $sql_array;
+  
+  /**
+   * Template variables.
+   * @var array
+   * @access private
+   */
+  
+  private $tpl_strings;
+  
+  /**
+   * Constructor.
+   * @param string If this contains newlines, it will be treated as the target SQL. If not, will be treated as a filename.
+   */
+  
+  public function __construct($sql)
+  {
+    if ( strpos($sql, "\n") )
+    {
+      $this->sql_string = $sql;
+    }
+    else
+    {
+      if ( file_exists($sql) )
+      {
+        $this->sql_string = @file_get_contents($sql);
+        if ( empty($this->sql_string) )
+        {
+          throw new Exception('SQL file is blank or permissions are bad');
+        }
+      }
+      else
+      {
+        throw new Exception('SQL file doesn\'t exist');
+      }
+    }
+    $this->sql_array = false;
+    $this->tpl_strings = array();
+  }
+  
+  /**
+   * Sets template variables.
+   * @param array Associative array of template variables to assign
+   */
+  
+  public function assign_vars($vars)
+  {
+    if ( !is_array($vars) )
+      return false;
+    $this->tpl_strings = array_merge($this->tpl_strings, $vars);
+  }
+  
+  /**
+   * Internal function to parse the SQL.
+   * @access private
+   */
+  
+  private function parse_sql()
+  {
+    $this->sql_array = $this->sql_string;
+    foreach ( $this->tpl_strings as $key => $value )
+    {
+      $this->sql_array = str_replace("{{{$key}}}", $value, $this->sql_array);
+    }
+    
+    // Build an array of queries
+    $this->sql_array = explode("\n", $this->sql_array);
+    
+    foreach ( $this->sql_array as $i => $sql )
+    {
+      $query =& $this->sql_array[$i];
+      $t = trim($query);
+      if ( empty($t) || preg_match('/^(\#|--)/i', $t) )
+      {
+        unset($this->sql_array[$i]);
+        unset($query);
+      }
+    }
+    unset($query);
+    
+    $this->sql_array = array_values($this->sql_array);
+    $this->sql_array = implode("\n", $this->sql_array);
+    $this->sql_array = explode(";\n", $this->sql_array);
+    
+    foreach ( $this->sql_array as $i => $sql )
+    {
+      $query =& $this->sql_array[$i];
+      if ( substr($query, ( strlen($query) - 1 ), 1 ) != ';' )
+      {
+        $query .= ';';
+      }
+    }
+    unset($query);
+  }
+  
+  /**
+   * Returns the parsed array of SQL queries.
+   * @param bool Optional. Defaults to false. If true, a parse is performed even if it already happened.
+   * @return array
+   */
+  
+  public function parse($force_reparse = false)
+  {
+    if ( !$this->sql_array || $force_reparse )
+      $this->parse_sql();
+    return $this->sql_array;
+  }
+}
+
+?>