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#!/usr/bin/python
##############################################################################
# Copyright (c) 2017 Politecnico di Torino and others.
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################
import sys, string
class CodeGeneratorBackend:
def begin(self, tab="\t"):
self.code = []
self.tab = tab
self.level = 0
def end(self):
return string.join(self.code, "")
def write(self, string):
self.code.append(self.tab * self.level + string)
def writeln(self, string):
self.code.append(self.tab * self.level + string + "\n")
def append(self, string):
self.code.append(string)
def indent(self):
self.level = self.level + 1
def dedent(self):
if self.level == 0:
raise SyntaxError, "internal error in code generator"
self.level = self.level - 1
def write_list(self, data, delimiter=True, wrapper="'"):
if delimiter == True:
self.code.append("{")
first = True
for element in data:
if (first == False):
self.code.append(", ")
else:
first = False
if wrapper == "'":
self.code.append("'" + str(element) + "'")
elif wrapper == "\"":
self.code.append("\"" + str(element) + "\"")
elif wrapper == "b":
self.code.append("(" + str(element) + ")")
else:
self.code.append(str(element))
if delimiter == True:
self.code.append("}")
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