Is there a ruby equivalent of this?
http://search.cpan.org/dist/Regexp-Assemble/Assemble.pm
Thanks
-John
Is there a ruby equivalent of this?
http://search.cpan.org/dist/Regexp-Assemble/Assemble.pm
Thanks
-John
On Oct 12, 2006, at 5:47 PM, John Ky wrote:
Is there a ruby equivalent of this?
I’m not aware of one, though we did play with the idea a little in a
very old Ruby Q.:
http://www.rubyquiz.com/quiz4.html
At 3,000 lines (granted a lot of that is documentation), it’s a hefty
port job. I think it’s a neat library though. Would be cool to see
it done.
James Edward G. II
James Edward G. II wrote:
At 3,000 lines (granted a lot of that is documentation), it’s a hefty
port job. I think it’s a neat library though. Would be cool to see
it done.James Edward G. II
If what you want is a way to easily assemble and use regular
expressions, I have a Python library that comes in at about 700-800
lines (excluding unit tests and docs). For example, to define a re
matching integer complex numbers (uses the fact that Python allows
named, not just numbered, re groups):
intPat = OPT("-") + CHAR(“0123456789”)*1 # *1 means 1 or more.
complexPat = intPat[‘real’] + ALT("-", “+”)[‘op’] + intPat[‘im’]
Let’s find out the real parts of all complex numbers in a string:
for matchresult in complexPat.iter(somestring): print
matchresult[‘real’]
Using some of the package’s predefined patterns, let’s define a complex
num pattern that handles floating point numbers and whitespace:
complex = PAT.float[‘real’] + CHAR.whitespace*0 + ALT("-", “+”)[‘op’]
etc. etc. I’d like to convert it to Ruby, but don’t have the time. It’d
be a significant but not huge job–more tedious than anything else. I
suspect the Ruby version would come in a little shorter, maybe 600
lines? Anyone interested?
Ken
Sounds interesting, can I have a look at the source code? I may just
be interested in rewriting it in ruby.
Thanks
-John
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