From: Tutor <tutor-bounces+sjeik_appie=hotmail....@python.org> on behalf of
Peter Otten <__pete...@web.de>
Sent: Friday, August 24, 2018 3:55 PM
To: tutor@python.org
<snip>
> The following reshuffle of your code seems to work:
>
> print('\r\n** Table of contents\r\n')
> pattern = '/Title \((.+?)\).+?/Page ([0-9]+)(?:\s+/Count ([0-9]+))?'
>
> def process(triples, limit=None, indent=0):
> for index, (title, page, count) in enumerate(triples, 1):
> title = indent * 4 * ' ' + title
> print(title.ljust(79, ".") + page.zfill(2))
> if count:
> process(triples, limit=int(count), indent=indent+1)
> if limit is not None and limit == index:
> break
>
> process(iter(re.findall(pattern, toc, re.DOTALL)))
Hi Peter, Cameron,
Thanks for your replies! The code above indeeed works as intended, but: I don't
really understand *why*.
I would assign a name to the following line "if limit is not None and limit ==
index", what would be the most descriptive name? I often use "is_*" names for
boolean variables. Would "is_deepest_nesting_level" be a good name?
Also, I don't understand why iter() is required here, and why finditer() is not
an alternative.
I wrote the bookmarks file myself, and the code above is part of a shell script
that compiles a large .pdf, with openoffice commandline calls, ghostscript,
git, pdftk and python. The human-readable toc and the pdf bookmarks will always
be consistent if I only need to edit one file.
Thanks again!
Albert-Jan
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