[EMAIL PROTECTED] wrote:
> i need help with converting a piece of perl code to python
> the problem is the '..' operator in perl. Is there any equivalent in
> python?
Here is a class that emulates the .. operator:
<code>
import sys
import re
start, files, end = map(re.escape, ["[start]", "[files]", "[end]"])
class Section(object):
def __init__(self, start, end):
self.start = re.compile(start).match
self.end = re.compile(end).match
self.inside = False
def __contains__(self, line):
result = self.inside
if result:
if self.end(line):
self.inside = False
else:
if self.start(line):
result = self.inside = True
return result
first = Section(start, files)
second = Section(files, end)
for line in sys.stdin:
line = line[:-1]
if line in first:
# your code
if line in second:
# your code
</code>
However, the simpler
<code>
#untested
import sys
start, files, end = "[start]", "[files]", "[end]"
keys = set([start, files, end])
key = None
for line in sys.stdin:
line = line[:-1]
if line in keys:
key = line
elif key == start:
# your code
elif key == files:
# your code
</code>
might work even better because 'your code' doesn't get to see the sections'
begin/end markers.
Peter
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