Am trying to convert a C program with a GOTO in it to Python and was wondering
how many loops a Python "break" jumps out of. Here is the C pseudo code
if (test_1) {
for (;;) {
if (test_2) {
do_stuff();
} else if (test_2) {
for (ip=m1+m2+1;ip<=m;ip++) {
if (test_3) {
do_more_stuff();
if (test_4)
goto one;
}
}
for (i=m1+1;i<=m1+m2;i++)
do_even_more_stuff();
do_yet_more_stuff();
}
do_final_stuff();
one: continue_program();
Python version 1 - assumes break jumps out of outer enclosing loop
if (test_1):
while 1:
if (test_2):
do_stuff()
elif (test_2):
for ip in range(m1+m2+1, m):
if (test_3):
do_more_stuff()
if (test_4):
break
for i in range(m1+1, m1+m2):
do_even_more_stuff()
do_yet_more_stuff()
}
do_final_stuff()
continue_program() # one (break jumps out of while loop to here)
Python version 2 - assumes break jumps out of inner loop only.
if (test_1):
while 1:
if (test_2):
do_stuff()
elif (test_2):
for ip in range(m1+m2+1, m):
if (test_3):
do_more_stuff()
if (test_4):
quit_loop = true
break # jump out of for loop
if quit_loop:
break: # jump out of if test
for i in range(m1+1, m1+m2):
do_even_more_stuff()
do_yet_more_stuff()
}
# break jumps out of if loop to here
if quit_loop:
break # jump out of while loop
do_final_stuff()
continue_program() # one
Python version 3 - assumes break jumps out of for loop only.
if (test_1):
while 1:
if (test_2):
do_stuff()
elif (test_2):
for ip in range(m1+m2+1, m):
if (test_3):
do_more_stuff()
if (test_4):
quit_loop = true
break # jump out of for loop
for i in range(m1+1, m1+m2):
do_even_more_stuff()
do_yet_more_stuff()
}
# break jumps out of for loop to here
if quit_loop:
break # jump out of while loop
do_final_stuff()
continue_program() # one
Unfortunately, can't test the Python script against the C program 'cos I don't
have a C compiler. All commments gratefully received
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