Python writes a script parsing file

PythonWrite a script parsing file

---- based on Red Hat Enterprise Linux Server release 6.4 (Santiago) ; python 2.6.6

Requirements: 1. Remove empty lines

2. Remove empty lines and output to a new file

Additional requirements (typesetting): 1.'-' indent n characters

'-' indent 2n characters

etc.

2.'-' all sentences beginning with output in one line

'-' the beginning of the sentence output in one line

etc.

-------------------------------------------- Divider Line ------------------------------------------------------

Getting to the point, I didn't touch Python How to manipulate strings, but it's easier to feel.

Idea:1. To parse a file, first open the file

2. to output a new file, write a file locally and write the parsed file in

3. remove the empty line to identify the empty line first, using split (), if spli () cannot return a value, the description is empty line

4. on the problem of typesetting indentation, first to identify the different types of sentences, with the regular match, and then output the string when the front with a space, so it is indented.

Code:

#!/usr/bin/python

#coding =utf-8

Import re

# # # will use a regular match, so enter the re module

old_file=open (' path + filename ', ' R ')

# # # Open a file to parse

download_file=open ('/root/desktop/lianxi/newfile ', ' W ')

# # # Local Create a new file, write the parsed content

Lines=old_file.readlines ()

###.readlines () reads the entire file, parses it into a list of rows

For L in lines:

Match=re.match (R ' ^\-\w.* ', L)

# # # matches the first character is -the sentence

if match:

 

A=match.group ()

# # # to assign a match result to a

download_file.write ("+a")

# # # Add two spaces to the front of a and write download_file

Match1=re.match (R ' ^\-\-\w.* ', L)

if Match1:

B=match1.group ()

download_file.write ("+b")

if L.split ():

Download_file.write (L)

# # # used to split split, separated by space, empty line natural 0

print "Success"

old_file.close ()

Download_file.close ()

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Python writes a script parsing file