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# Reads the USB VID and PID from the file specified by sys.argv[1] and then
# inserts those values into the template file specified by sys.argv[2],
# printing the result to stdout
from __future__ import print_function
import sys
import re
import string
needed_keys = ("USB_PID_CDC_MSC", "USB_PID_CDC_HID", "USB_PID_CDC", "USB_VID")
def parse_usb_ids(filename):
rv = dict()
for line in open(filename).readlines():
line = line.rstrip("\r\n")
match = re.match("^#define\s+(\w+)\s+\(0x([0-9A-Fa-f]+)\)$", line)
if match and match.group(1).startswith("USBD_"):
key = match.group(1).replace("USBD", "USB")
val = match.group(2)
print("key =", key, "val =", val)
if key in needed_keys:
rv[key] = val
for k in needed_keys:
if k not in rv:
raise Exception("Unable to parse %s from %s" % (k, filename))
return rv
if __name__ == "__main__":
usb_ids_file = sys.argv[1]
template_file = sys.argv[2]
replacements = parse_usb_ids(usb_ids_file)
for line in open(template_file, "r").readlines():
print(string.Template(line).safe_substitute(replacements), end="")
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