# Copyright 2017 The Emscripten Authors. All rights reserved.

# Emscripten is available under two separate licenses, the MIT license and the

# University of Illinois/NCSA Open Source License. Both these licenses can be

# found in the LICENSE file.

'''

Processes a C source file, adding debugging information.

Similar to autodebugger.py, but runs on .c files. Will

overwrite the files it is given!

'''

from __future__ import print_function

import os, sys, re

filenames = sys.argv[1:]

for filename in filenames:

print('..%s..' % filename)

f = open(filename, 'r')

data = f.read()

f.close()

lines = data.split('\n')

for i in range(len(lines)):

m = re.match(r'^ [ ]*([\w\d \[\]]+) = +([^;]+);$', lines[i])

if m and (' if ' not in lines[i-1] or '{' in lines[i-1]) and \

(' if ' not in lines[i+1] or '{' in lines[i+1]) and \

(' else' not in lines[i-1] or '{' in lines[i-1]) and \

(' else' not in lines[i+1] or '{' in lines[i+1]) and \

(' for' not in lines[i-1]) and \

('struct' not in lines[i]):

raw = m.groups(1)[0].rstrip()

var = raw.split(' ')[-1]

if ' ' in raw and '[' in var: continue

lines[i] += ''' printf("%s:%d:%s=%%d\\n", (int)%s);''' % (filename, i+1, var, var)

f = open(filename, 'w')

f.write('\n'.join(lines))

f.close()

print('Success.')