En Mon, 02 Mar 2009 19:08:04 -0200, MRAB <goo...@mrabarnett.plus.com>
escribió:
Gabriel Genellina wrote:
En Mon, 02 Mar 2009 17:58:01 -0200, Bo Zhang <primroseb...@gmail.com>
escribió:
I want to parse a file and do this :
A 74.335 -86.474-129.317 1.00 54.12
then add space between -86.474 and -129.317. I can get the file with
A 74.335 -86.474 -129.317 1.00 54.12
Use a regular expression:
py> import re
py> line = "A 74.335 -86.474-129.317 1.00 54.12"
py> re.sub(r"(\d)-(\d)", r"\1 -\2", line)
'A 74.335 -86.474 -129.317 1.00 54.12'
You many require r"(\d)-([\d\.])" if a number is allowed to start with
a decimal point.
It probably doesn't matter what comes after the '-':
re.sub(r"(\d)-", r"\1 -", line)
Yes, that's better.
--
Gabriel Genellina
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