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class_reader.py
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Tue, Jun 4, 06:03

class_reader.py
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import re
from class_decriptor import ClassDescriptor
class ClassReader:
def __init__(self):
self.classes = []
self.current_class = None
def read(self,filename):
f = open(filename,'r')
self.line_cpt = 0
for line in f:
self.readline(line)
self.line_cpt += 1
if self.current_class is not None:
self.classes.append(self.current_class)
return self.classes
def readline(self,line):
line = line.split('#')[0]
line = line.strip()
if line == "": return
if self.isNewClassTag(line): return
if self.isNewMethodTag(line): return
if self.isNewMemberTag(line): return
else: raise Exception("could not parse line:{0}\n'".format(self.line_cpt) + line + "'")
def isNewClassTag(self,line):
ret = False
m = re.match(r'class\s+(\S*)',line)
if m:
name = m.group(1)
inheritance = None
ret = True
m = re.match(r'class\s+(\S*)\((.*)\)',line)
if m:
name = m.group(1)
inheritance = m.group(2)
inheritance = inheritance.strip().split(',')
inheritance = [e.strip() for e in inheritance]
ret = True
if ret == False: return False
if self.current_class is not None:
self.classes.append(self.current_class)
self.current_class = ClassDescriptor(name,inheritance)
return True
def isNewMemberTag(self,line):
m = re.match(r'((?:public|protected|private)*)\s+((?:\S|(?:\s+\*))+)\s+(.*)',line)
if m:
encapsulation = m.group(1)
_type = m.group(2)
name = m.group(3)
self.current_class.addMember(name,_type,encapsulation)
return True
return False
def isNewMethodTag(self,line):
m = re.match(r'((?:public|protected|private)*)\s*((?:virtual|pure virtual)?)\s*(\S*)\s+(\S*)\((.*)\)',line)
if m:
encapsulation = m.group(1).strip()
virtual = m.group(2).strip()
ret = m.group(3).strip()
name = m.group(4).strip()
args = m.group(5).strip().split(',')
args = [tuple(e.strip().split(' ')) for e in args]
self.current_class.addMethod(name,args,ret,encapsulation,virtual)
return True
return False
if __name__ == '__main__':
cls_reader = ClassReader()
classes = cls_reader.read('test.classes')
for c in classes:
print c

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