recursive-regex | 易学教程

get inner patterns recursively using regex c#

阅读更多关于 get inner patterns recursively using regex c#

问题 i know there are several questions about regex recursion in .net. I can write somewhat complex regex expressions but this recursion is beyond me, i am just not able to write it. This are the questions closest to what i want. first question, second question. but it matches the entire string, i want the matches in a collection preferably the innermost match first or in some order. Also it matches on one opening character and one closing character. Mine is 2 chars for opening and closing, [! and

Matching Nested Structures With Regular Expressions in Python

阅读更多关于 Matching Nested Structures With Regular Expressions in Python

I seem to remember that Regular Expressions in DotNet have a special mechanism that allows for the correct matching of nested structures, like the grouping in " ( (a ( ( c ) b ) ) ( d ) e ) ". What is the python equivalent of this feature? Can this be achieved using regular expressions with some workaround? (Though it seems to be the sort of problem that current implementations of regex aren't designed for) You can't do this generally using Python regular expressions. (.NET regular expressions have been extended with "balancing groups" which is what allows nested matches.) However, PyParsing

Can I use Perl regular expressions to match balanced text?

阅读更多关于 Can I use Perl regular expressions to match balanced text?

问题 I would like to match text enclosed in brackets etc in Perl. How can I do that? This is a question from the official perlfaq. We\'re importing the perlfaq to Stack Overflow. 回答1: This is the official FAQ answer minus any subsequent edits. Your first try should probably be the Text::Balanced module, which is in the Perl standard library since Perl 5.8. It has a variety of functions to deal with tricky text. The Regexp::Common module can also help by providing canned patterns you can use. As of