Hi,
I have lines like the following:
\begin{letter}{Name\\ Street\\ ZIP\\ Country}
\begin{letter}{Name\\ Street\\ ZIP}
To extract the info, I used
my ($data) = $file_content =~ /\\begin{letter}{(.+?)}/;
my ($name, $street, $zip, $country) = split /\\\\ /, $data;
But I wonder if this is also possible using a single regex. The first three
parts are simple, but the optional fourth field seems complicated to capture.
Before I thought of splitting the whole string after capturing it, I tried to
use two regexes, one to grab the mandatory fields, a second one to grab the
optional country. The second one is simple, the first one looked like:
($name, $street, $zip) = $file_content =~ /\\begin{letter}{(.+?)\\\\ (.+?)\\\\
([^//]+?)}/;
But this obviously captures the street and the zip in $street if country is
present, as it still has country for the third parentheses.
As I already solved the problem in a different, this is not strictly necessary,
I was just wondering if there's a regex way to do it and if it is even possible
in a single regex.
Thanks,
Jan
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