How to Use Python Regular Expressions in Java

When using Python regular expressions, you need to pay attention to many issues. For Python regular expressions, such as continuous learning, can be better solved. Next we will look at how we can better learn. I hope you will have some gains.

Java code

 
 

  
  
# Encoding = UTF-8
  
  
'''
  
  
Python learn regular express
  
  
Url: http://docs.python.org/library/re.html
  
  
Parse html url: http://www.boddie.org.uk/python/HTML.html
  
  
Author: liuzheng
  
  
'''
  
  
Import re
  
  
Import urllib
  
  
# Analyze the javaeye blog Channel
  
  
Class ParseHTML:
  
  
'''
  
  
Parse html for infomation
  
  
Parse javeeye page
  
  
'''
  
  
Def _ init _ (self, url ):
  
  
Self. url = url
  
  
Pass
  
  
# Analyses html
  
  
Def parse (self ):
  
  
Sock = urllib. urlopen (self. url)
  
  
Html = sock. read ()
  
  
Self. _ puts (html)
  
  
Pass
  
  
# Print html matching data
  
  
Def _ puts (self, html ):
  
  
B = re. compile (r "<a href = '([\ w./: \] + ?) '[\ S] * title = ([^ <>] + ?)
[\ S] * target = ([^ <>] +?)> ([^ <>] + ?) </A> ", re. I)
  
  
M = re. findall (B, html)
  
  
# Is there an encode problem ?, I don't know. Can you help me?
  
  
Print m
  
  
If _ name _ = '_ main __':
  
  
Url = "http://www.javaeye.com/blogs"
  
  
P = ParseHTML (url)
  
  
P. parse ()
  
  
If _ debug __:
  
  
Print "debuging is % s" % _ debug __
  
  
Print "regular" + "*" * 30
  
  
# Math
  
  
Str = "800-820-8800"
  
  
M = re. match (r "(\ d {3})-(\ d {3})-(\ d {4})", str)
  
  
Print "result:", m. groups ()
  
  
# Split
  
  
Print "split: % s" % re. split ('\ W', 'words, Words, words .')
  
  
# Findall
  
  
Text = "He was carefully disguised but captured quickly
By police ."
  
  
Print "findall: % s" % re. findall (r "\ w + ly", text)

  
  
# Sub
  
  
Text = "hello world! "
  
  
Print "sub: % s" % re. sub (r "\ s +", "--", text)
 
 

The above is a detailed introduction to Python regular expressions.