groveling over a file for Q:: and A:: stmts

2012-07-24 Thread paul618
#!/usr/bin/env python
# grep_for_QA.py  I am only looking to isolate uniq Q:: and A:: stmts from my 
daily files
#
# note:  This algorithm will fail if there are any blank lines within the Q and 
A area of interest (a paragraph)

# D. Beazley is my fav documentation

import re, glob
import pprint as pp

sampledata = '''
A:: And Straight Street is playin on the Radio Free Tibet.  What are the 
chances, DTMB?  
Q:: About 1 in 518400, Professor.
A:: Correct!  Err, I thought it was 1:410400, but close enough for jazz!


'''

pattern0 = re.compile("Q::")
pattern1 = re.compile("A::")  # objects of interest can start with A:: ;; not 
alway Q::
END_OF_PARAGRAPH_pat = "\n\s*\n"

path = "/Users/paultaney/dailies2012/0722" # an example of real data set.

toggle = False
L = []
M = []

#file = open(path, "r")
try: 
#for line in file.readlines():
for line in sampledata:  
try:
# Later, I also need to treat Unicode -- and I am clueless.
  
# falsestarts::
#line.encode("utf8").decode('xxx', 'ignore')
#line.encode("utf8", 'ignore') 
#line.decode('8859')  
#line.decode('8859')  # 8859, Latin-1 doesn't cover my  CJK 
pastings  AT ALL
#line.decode('GB18030')  # 171006 -- ack
#encoded_line = line  # xxx line.encode("utf8") 

mo0 = re.search(pattern0, line)
mo1 = re.search(pattern1, line)
mo2 = re.search(END_OF_PARAGRAPH_pat, line)

if mo0:
if 1: print ("I see pattern 0")
toggle = True
if 1: print(line)
M.append(mo0.group())

if mo1:
if 1: print ("I see pattern 1")
toggle = True
M.append(mo1.group())

if mo2 and toggle:
if 1: print ("I see pattern 2 AND toggle is set")
# got one.  save it for uniqifying, and empty the container  
toggle = False
L.append(M)
M = []

except Exception as e:
print("--- " + e + " ---")

except UnicodeDecodeError:
#encoded_line = encoded_line.urlsafe_b64encode(re.replace("asdf", 
encoded_line))
#line = re.sub(".+", "--- asdf ---", line)
pass

L.sort
print (L)

# and what"s wrong with some of this, here!
#myHash = set(L)# uniqify
#pp.pprint(myHash)  # july 23, 131001 hike!
-- 
http://mail.python.org/mailman/listinfo/python-list


Re: groveling over a file for Q:: and A:: stmts

2012-07-24 Thread paul618
Hi Steve:


Thank you for your quick response.  

Ah, indeed I failed to ask my question::  Why doesnt this code print the 
sampledata?  Instead it prints the empty list.

The answer is probably quite simple, as I really am an idiot.


Thanks again,
paul


-- 
http://mail.python.org/mailman/listinfo/python-list