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# The rough equivalent of the traditional CPP:
# #define printTest(x) (do{ putStr ( " " ++ "x" ++ " = " ) ; print (x) })
# which is not portable to clang.
import sys
def process(s):
while True:
start = s.find('printTest')
if start == -1:
return s
j0 = j = s.index('(', start) + 1
depth = 1
while depth > 0:
if s[j] == '(':
depth += 1
if s[j] == ')':
depth -= 1
j += 1
argument = s[j0:j-1]
expansion = '(do{ putStr ( " " ++ "%s" ++ " = " ) ; print (%s) })' \
% (argument, argument)
s = s[:start] + expansion + s[j:]
_, _, inputFile, outputFile = sys.argv
open(outputFile, 'w').write(process(open(inputFile, 'r').read()))
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