#!/usr/bin/env python

"""
Copyright (c) 2006-2013 sqlmap developers (http://sqlmap.org/)
See the file 'doc/COPYING' for copying permission
"""

import binascii

from lib.core.convert import utf8encode
from plugins.generic.syntax import Syntax as GenericSyntax

class Syntax(GenericSyntax):
    def __init__(self):
        GenericSyntax.__init__(self)

    @staticmethod
    def escape(expression, quote=True):
        """
        >>> Syntax.escape("SELECT 'abcdefgh' FROM foobar")
        'SELECT CHAR(97)||CHAR(98)||CHAR(99)||CHAR(100)||CHAR(101)||CHAR(102)||CHAR(103)||CHAR(104) FROM foobar'
        """
        def escaper(value):
            return "||".join("CHAR(%d)" % ord(value[i]) for i in xrange(len(value)))

        return Syntax._escape(expression, quote, escaper)