apppublic/appPublic/argsConvert.py
2020-07-12 16:04:02 +08:00

183 lines
5.0 KiB
Python

# -*- coding:utf8 -*-
import re
class ConvertException(Exception):
pass
class ArgsConvert(object):
def __init__(self,preString,subfixString,coding='utf-8'):
self.preString = preString
self.subfixString = subfixString
self.coding=coding
sl1 = [ u'\\' + c for c in self.preString ]
sl2 = [ u'\\' + c for c in self.subfixString ]
ps = u''.join(sl1)
ss = u''.join(sl2)
re1 = ps + r"[_a-zA-Z_\u4e00-\u9fa5][a-zA-Z_0-9\u4e00-\u9fa5\,\.\'\{\}\[\]\(\)\-\+\*\/]*" + ss
self.re1 = re1
# print( self.re1,len(self.re1),len(re1),type(self.re1))
def convert(self,obj,namespace,default=''):
""" obj can be a string,[],or dictionary """
if type(obj) == type(u''):
return self.convertUnicode(obj,namespace,default)
if type(obj) == type(''):
return self.convertString(obj,namespace,default)
if type(obj) == type([]):
ret = []
for o in obj:
ret.append(self.convert(o,namespace,default))
return ret
if type(obj) == type({}):
ret = {}
for k in obj.keys():
ret.update({k:self.convert(obj.get(k),namespace,default)})
return ret
# print( type(obj),"not converted")
return obj
def findAllVariables(self,src):
r = []
for ph in re.findall(self.re1,src):
dl = self.getVarName(ph)
r.append(dl)
return r
def getVarName(self,vs):
return vs[len(self.preString):-len(self.subfixString)]
def getVarValue(self,var,namespace,default):
v = default
try:
v = eval(var,namespace)
except Exception as e:
v = namespace.get(var,default)
return v
def convertUnicode(self,s,namespace,default):
args = re.findall(self.re1,s)
for arg in args:
dl = s.split(arg)
var = self.getVarName(arg)
v = self.getVarValue(var,namespace,default)
if type(v) != type(u''):
v = str(v)
s = v.join(dl)
return s
def convertString(self,s,namespace,default):
ret = self.convertUnicode(s,namespace,default)
return ret
class ConditionConvert(object):
def __init__(self,pString = u'$<',sString=u'>$',coding='utf-8'):
self.coding = coding
self.pString = pString
self.sString = sString
pS = ''.join([u'\\'+i for i in self.pString ])
sS = ''.join([u'\\'+i for i in self.sString ])
self.re1 = re.compile(u'(' + pS + '/?' + u'[_a-zA-Z_\u4e00-\u9fa5][a-zA-Z_0-9\u4e00-\u9fa5\,\.\'\{\}\[\]\(\)\-\+\*\/]*' + sS + u')')
self.buffer1 = []
def convert(self,obj,namespace):
""" obj can be a string,[],or dictionary """
if type(obj) == type(u''):
return self.convertUnicode(obj,namespace)
if type(obj) == type(''):
return self.convertString(obj,namespace)
if type(obj) == type([]):
ret = []
for o in obj:
ret.append(self.convert(o,namespace))
return ret
if type(obj) == type({}):
ret = {}
for k in obj.keys():
ret.update({k:self.convert(obj.get(k),namespace)})
return ret
# print( type(obj),"not converted")
return obj
def getVarName(self,vs):
return vs[len(self.pString):-len(self.sString)]
def getVarValue(self,var,namespace):
v = None
try:
v = eval(var,namespace)
except Exception as e:
v = namespace.get(var,None)
return v
def convertList(self,alist,namespace):
ret = []
handleList = alist
while len(handleList) > 0:
i = handleList[0]
handleList = handleList[1:]
if len(self.re1.findall(i)) < 1:
ret.append(i)
else:
name = self.getVarName(i)
if name[0] == u'/':
name = name[1:]
if len(self.buffer1) < 1:
raise ConvertException('name(%s) not match' % name)
if self.buffer1[-1] != name:
raise ConvertException('name(%s) not match(%s)' % (self.buffer1[-1],name))
val = self.getVarValue(name,namespace)
self.buffer1 = self.buffer1[:-1]
if val is not None:
return u''.join(ret),handleList
else:
return u'',handleList
else:
self.buffer1.append(name)
subStr,handleList = self.convertList(handleList,namespace)
ret.append(subStr)
if len(self.buffer1)>0:
raise ConvertException('name(s)(%s) not closed' % ','.join(self.buffer1))
return u''.join(ret),[]
def convertUnicode(self,s,namespace):
ret = []
parts = self.re1.split(s)
s,b = self.convertList(parts,namespace)
return s
def convertString(self,s,namespace):
ret = self.convertUnicode(s,namespace)
return ret
if __name__ == '__main__':
"""
ns = {
'a':12,
'b':'of',
'c':'abc',
u'':'is',
'd':{
'a':'doc',
'b':'gg',
}
}
AC = ArgsConvert('%{','}%')
s1 = u"%{a}% is a number,%{d['b']}% is %{是}% undefined,%{c}% is %{d['a']+'(rr)'}% string"
arglist=['this is a descrciption %{b}% selling book',123,'ereg%{a}%,%{c}%']
argdict={
'my':arglist,
'b':s1
}
print(f(s1,'<=>',AC.convert(s1,ns)))
print(f(argdict,'<=>',AC.convert(argdict,ns)))
"""
cc = ConditionConvert()
s2 = u"Begin $<abc>$this is $<ba>$ba = 100 $</ba>$condition out$</abc>$ end"
s3 = """select * from RPT_BONDRATINGS
where 1=1
$<rtype>$and ratingtype=${rtype}$$</rtype>$
$<bond>$and bond_id = ${bond}$$</bond>$"""
print(f("result=",cc.convert(s2,{'ba':23})))
print(f("result = ",cc.convert(s3,{'bond':'943','rtype':'1'})))