How To Extract Only Particular Set Of Structs From A File Between Braces In Python

a. Have a scenario, where in my function reads in a file which contains list of c-structures as shown below, reads the file and extracts all the information between { } braces for

Solution 1:

Got It Working As Per My Req:

from Tkinter import *
import subprocess
import shlex
import os 
import time
import string
import threading
import sys, argparse
import ttk
import re
import logging
import warnings
import os.path
import gzip

#import xlwt
#import xlrd 

readstructfile = None
filename = None
structnames = []
filename_and_structnames_l = [] 
global found_struct
global found_struct_idx
global temp_struct
global final_struct

found_struct_idx = {} 
found_struct = 0
temp_struct = []
final_struct = [] 

def readfileanddump(filename_and_structnames):
    global found_struct
    global temp_struct
    global final_struct
    filename_and_structnames_l = filename_and_structnames.split(",") 

    if len(filename_and_structnames_l) < 2:
        filename = filename_and_structnames_l[0]
        structnames.append('all')
        print "1. Value of filename %s and structnames %s"%(filename, str(structnames))
    elif len(filename_and_structnames_l) > 1 and len(filename_and_structnames_l) < 3:
        filename = filename_and_structnames_l[0]
        structnames.append(filename_and_structnames_l[1])
        print "2. Value of filename %s and structnames %s"%(filename, str(structnames))
    elif len(filename_and_structnames_l) > 2: 
        filename = filename_and_structnames_l[0]
        for i in range (1, len(filename_and_structnames_l)):
            structnames.append(filename_and_structnames_l[i])
        print "3. Value of filename %s and structnames %s"%(filename, str(structnames))


    if (len(structnames) == 1) and (structnames[0] == 'all'):
        readstructfile = open(filename, "r+")
        for lines in readstructfile:
            if found_struct == 0 and re.match(r'.*typedef struct', lines):
                found_struct = 1
            elif found_struct == 1 and re.match(r'.*}.*', lines):
                found_struct = 0
                print "Value of temp_struct",temp_struct
                final_struct = temp_struct
                print "Value of final_struct", final_struct
            elif found_struct == 1:
                print "Value of lines",lines
                lines = str(lines.strip()).replace(";","")
                print "Value of lines b4",lines
                print "Value of lines a8",lines.strip()
                #print(re.sub(r"(?:[;]|\s{2,})",r'',lines)[2:])
                temp_struct.append(lines)
    else:
        readstructfile = open(filename, "r+")
        for lines in readstructfile:
            if found_struct == 0 and re.match(r'.*typedef struct', lines):
                found_struct = 1
                temp_struct = None; temp_struct = []
            elif found_struct == 1 and re.match(r'.*}.*', lines):
                found_struct = 0
                reached_struct = re.sub(r'.*}.|;',r'',lines)
                for i in range (len(structnames)):
                    print "Value of structnames[%d] %s and lines is %s"%(i, structnames[i], reached_struct)
                    if str(structnames[i]).strip() == str(reached_struct).strip():
                        for i in range (len(temp_struct)):
                            final_struct.append(temp_struct[i])
                        print "Value of temp_struct",temp_struct
                        print "Value of final_struct",final_struct
            elif found_struct == 1:
                # print "Value of lines",lines
                lines = str(lines.strip()).replace(";","")
                # print "Value of lines b4 strip",lines
                # print "Value of lines a8 strip",lines.strip()
                temp_struct.append(lines)