Pasted

# python 3.4.3
# convert BF shorthand code to standard BF code
# this program can process 1+ or 2>>, but bf_l2s.py will not generate that shorthand
 
prevch=""
nextch=""
counter=1
error_count=0
command_set="<>+-[].,"
num=""
 
file = open(input(("bf file: "), 'r')
 
print()
 
while True:
    nextch=file.read(1)
 
    if(not nextch): 
        file.close()
        break
 
    if(nextch.isnumeric()):
        num = num + nextch
    elif(nextch not in command_set):
        error_count += 1
    elif(num == ""):
        print(nextch,end="")
    else:
        print(nextch * int(num), end="")
        num=""
print()
print()
 
"""
Sample input BF code, Hello World implementations in the Esoteric Programming Language Wiki
 
++++++++++[>+++++++>++++++++++>+++>+<
<<<-]>++.>+.+++++++..+++.>++.<<++++++
+++++++++.>.+++.------.--------.>+.>.
 
 
bf_l2s.py returns:
 
10+[>7+>10+>3+>+4<-]>++.>+.7+..3+.>++.<<15+.>.3+.6-.8-.>+.>.
 
111 Commands
 
bf_s2l.py returns the original program (without formatting), and it runs too!
"""