regex - Strip URL - Python -

-

ok how use regex remove http and/or www http://www.domain.com/ domain.com

assume x kind of tld or ctld

input example:

http://www.domain.x/

www.domain.x

output:

domain.x

if want use regular expressions instead of urlparse() or splitting string:

>>> domain = 'http://www.example.com/' >>> re.match(r'(?:\w*://)?(?:.*\.)?([a-za-z-1-9]*\.[a-za-z]{1,}).*', domain).groups()[0] example.com

the regular expression might bit simplistic, works. it's not replacing, think getting domain out easier.

to support domains 'co.uk', 1 can following:

>>> p = re.compile(r'(?:\w*://)?(?:.*?\.)?(?:([a-za-z-1-9]*)\.)?([a-za-z-1-9]*\.[a-za-z]{1,}).*') >>> p.match(domain).groups()

('google', 'co.uk')

so got check result domains 'co.uk', , join result again in such case. normal domains should work ok. not make work when have multiple subdomains.

one-liner without regular expressions or fancy modules:

>>> domain = 'http://www.example.com/' >>> '.'.join(domain.replace('http://','').split('/')[0].split('.')[-2:])

Comments

Post a Comment

Popular posts from this blog

c# - SVN Error : "svnadmin: E205000: Too many arguments" -

-
i trying reposotries using c# code process svncommand = null; var psi = new processstartinfo("svnadmin"); psi.redirectstandardoutput = true; psi.redirectstandarderror = true; psi.useshellexecute = false; psi.arguments= @"dump c:\repositories\myrepo > c:\temp\myrepodumpfile.dump"; using (svncommand = process.start(psi)) { var myoutput = svncommand.standardoutput; var myerror = svncommand.standarderror; debug.write("output :" + environment.newline + environment.newline + myoutput.readtoend() + environment.newline + "error :" + environment.newline + environment.newline + myerror.readtoend()); svncommand.close(); } when use dump command commandline svnadmin dump c:\repositories\myrepo > c:\temp\myrepodumpfile.dump it works fine when try ...
Read more

c# - Copy ObservableCollection to another ObservableCollection -

-
how copy observablecollection item observablecollection without reference of first collection? here observablecollection item value changes affecting both collections. code private observablecollection<ratemodel> _allmetalrate = new observablecollection<ratemodel>(); private observablecollection<ratemodel> _metalrateondate = new observablecollection<ratemodel>(); public observablecollection<ratemodel> allmetalrate { { return this._allmetalrate; } set { this._allmetalrate = value; notifypropertychanged("metalrate"); } } public observablecollection<ratemodel> metalrateondate { { return this._metalrateondate; } set { this._metalrateondate = value; notifypropertychanged("metalrateondate"); } } foreach (var item in metalrateondate) allmetalrate.add(item); what causing , how can solve it? you need clone object referenced item before it's a...
Read more

All overlapping substrings matching a java regex -

-
is there api method returns (possibly overlapping) substrings match regular expression? for example, have text string: string t = 04/31 412-555-1235; , , have pattern: pattern p = new pattern("\\d\\d+"); matches strings of 2 or more characters. the matches are: 04, 31, 412, 555, 1235. how overlapping matches? i want code return: 04, 31, 41, 412, 12, 55, 555, 55, 12, 123, 1235, 23, 235, 35. theoretically should possible -- there obvious o(n^2) algorithm enumerates , checks substrings against pattern. edit rather enumerating substrings, safer use region(int start, int end) method in matcher . checking pattern against separate, extracted substring might change result of match (e.g. if there non-capturing group or word boundary check @ start/end of pattern). edit 2 actually, it's unclear whether region() expect zero-width matches. specification vague, , experiments yield disappointing results. for example: string line = "xx90xx"; strin...
Read more