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'''
Processes a C source file, adding debugging information.
Similar to autodebugger.py, but runs on .js files.
'''
import os, sys, re
filename = sys.argv[1]
func = sys.argv[2]
f = open(filename, 'r')
data = f.read()
f.close()
lines = data.split('\n')
in_func = False
for i in range(len(lines)):
if lines[i].startswith('function '):
name = lines[i].split('(')[0].split(' ')[1]
args = lines[i].split('(')[1].split(')')[0]
lines[i] += ' print("call %s(" + [%s] + ")");' % (name, args)
if lines[i].startswith('function ' + func + '('):
in_func = True
continue
elif lines[i].startswith('}'):
in_func = False
continue
if in_func:
m = re.match('^ +([$_\w\d \[\]]+) = +([^;]+);$', lines[i])
if m and (' if ' not in lines[i-1] or '{' in lines[i-1]) and \
(' if ' not in lines[i+1] or '{' in lines[i+1]) and \
(' else' not in lines[i-1] or '{' in lines[i-1]) and \
(' else' not in lines[i+1] or '{' in lines[i+1]):
var = m.groups(1)[0].rstrip().split(' ')[-1]
if 'STACKTOP' not in lines[i] and 'sp' not in lines[i]:
#lines[i] += ''' print("[%4d] %s = " + %s);''' % (i+1, var, var)
lines[i] += ''' print("%s = " + %s);''' % (var, var)
m = re.match('^ +HEAP.*$', lines[i])
if m and lines[i].count(' = ') == 1:
left, right = lines[i].split(' = ')
lines[i] += ''' print("%s = " + %s);''' % (left, left)
print '\n'.join(lines)
print >> sys.stderr, 'Success.'
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