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#!/usr/bin/env python
"""
translate C <snippet>.cairo to Python <snippet>.py
; -> ''
cairo_ -> cr.
'(cr, ' -> ( but not snippet_normalize (cr, width, height)
(cr) -> ()
/* -> #/*
CAIRO_ -> cairo.
"""
import sys
if len(sys.argv) != 2 or not sys.argv[1].endswith('.cairo'):
raise SystemExit('usage: c_to_python.py <file>.cairo')
filename_in = sys.argv[1]
filename_out = filename_in.replace('.cairo', '.py')
file_in = file(filename_in)
file_out = file(filename_out, 'w')
for line in file_in:
line = line.replace(';', '') # should be ';' and whitespace to EOL only -> \n
if not line.startswith('snippet_'):
line = line.replace('cairo_', 'cr.')
line = line.replace('(cr, ', '(')
line = line.replace('(cr)', '()')
line = line.replace('/*', '#/*')
line = line.replace(' ', '')
line = line.replace('CAIRO_', 'cairo.')
file_out.write (line)
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