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#! /usr/bin/env python
# Renumber the Python FAQ
import string
import regex
import sys
import os
FAQ = 'FAQ'
chapterprog = regex.compile('^\([1-9][0-9]*\)\. ')
questionprog = regex.compile('^\([1-9][0-9]*\)\.\([1-9][0-9]*\)\. ')
newquestionprog = regex.compile('^Q\. ')
blankprog = regex.compile('^[ \t]*$')
indentedorblankprog = regex.compile('^\([ \t]+\|[ \t]*$\)')
def main():
print 'Reading lines...'
lines = open(FAQ, 'r').readlines()
print 'Renumbering in memory...'
oldlines = lines[:]
after_blank = 1
chapter = 0
question = 0
chapters = ['\n']
questions = []
for i in range(len(lines)):
line = lines[i]
if after_blank:
n = chapterprog.match(line)
if n >= 0:
chapter = chapter + 1
question = 0
line = `chapter` + '. ' + line[n:]
lines[i] = line
chapters.append(' ' + line)
questions.append('\n')
questions.append(' ' + line)
afterblank = 0
continue
n = questionprog.match(line)
if n < 0: n = newquestionprog.match(line) - 3
if n >= 0:
question = question + 1
number = '%d.%d. '%(chapter, question)
line = number + line[n:]
lines[i] = line
questions.append(' ' + line)
# Add up to 4 continuations of the question
n = len(number)
for j in range(i+1, i+5):
if blankprog.match(lines[j]) >= 0:
break
questions.append(' '*(n+2) + lines[j])
afterblank = 0
continue
afterblank = (blankprog.match(line) >= 0)
print 'Inserting list of chapters...'
chapters.append('\n')
for i in range(len(lines)):
line = lines[i]
if regex.match(
'^This FAQ is divided in the following chapters',
line) >= 0:
i = i+1
while 1:
line = lines[i]
if indentedorblankprog.match(line) < 0:
break
del lines[i]
lines[i:i] = chapters
break
else:
print '*** Can\'t find header for list of chapters'
print '*** Chapters found:'
for line in chapters: print line,
print 'Inserting list of questions...'
questions.append('\n')
for i in range(len(lines)):
line = lines[i]
if regex.match('^Here.s an overview of the questions',
line) >= 0:
i = i+1
while 1:
line = lines[i]
if indentedorblankprog.match(line) < 0:
break
del lines[i]
lines[i:i] = questions
break
else:
print '*** Can\'t find header for list of questions'
print '*** Questions found:'
for line in questions: print line,
if lines == oldlines:
print 'No changes.'
return
print 'Writing new file...'
f = open(FAQ + '.new', 'w')
for line in lines:
f.write(line)
f.close()
print 'Making backup...'
os.rename(FAQ, FAQ + '~')
print 'Moving new file...'
os.rename(FAQ + '.new', FAQ)
print 'Done.'
main()
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