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#!/usr/bin/env python

"""

Copyright (c) 2006-2013 sqlmap developers (http://sqlmap.org/)

See the file 'doc/COPYING' for copying permission

"""

import re

from lib.core.exception import SqlmapUndefinedMethod

class Syntax:

"""

This class defines generic syntax functionalities for plugins.

"""

def __init__(self):

pass

@staticmethod

def _escape(expression, quote=True, escaper=None):

retVal = expression

if quote:

for item in re.findall(r"'[^']*'+", expression, re.S):

_ = item[1:-1]

if _:

retVal = retVal.replace(item, escaper(_))

else:

retVal = escaper(expression)

return retVal

@staticmethod

def escape(expression, quote=True):

errMsg = "'escape' method must be defined "

errMsg += "inside the specific DBMS plugin"

raise SqlmapUndefinedMethod(errMsg)