# -*- coding: utf-8 -*-
"""
This bot will make direct text replacements. It will retrieve information on
which pages might need changes either from an XML dump or a text file, or only
change a single page.
These command line parameters can be used to specify which pages to work on:
¶ms;
-xml Retrieve information from a local XML dump (pages-articles
or pages-meta-current, see http://download.wikimedia.org).
Argument can also be given as "-xml:filename".
-page Only edit a specific page.
Argument can also be given as "-page:pagetitle". You can
give this parameter multiple times to edit multiple pages.
Furthermore, the following command line parameters are supported:
-regex Make replacements using regular expressions. If this argument
isn't given, the bot will make simple text replacements.
-nocase Use case insensitive regular expressions.
-dotall Make the dot match any character at all, including a newline.
Without this flag, '.' will match anything except a newline.
-multiline '^' and '$' will now match begin and end of each line.
-xmlstart (Only works with -xml) Skip all articles in the XML dump
before the one specified (may also be given as
-xmlstart:Article).
-addcat:cat_name Adds "cat_name" category to every altered page.
-excepttitle:XYZ Skip pages with titles that contain XYZ. If the -regex
argument is given, XYZ will be regarded as a regular
expression.
-requiretitle:XYZ Only do pages with titles that contain XYZ. If the -regex
argument is given, XYZ will be regarded as a regular
expression.
-excepttext:XYZ Skip pages which contain the text XYZ. If the -regex
argument is given, XYZ will be regarded as a regular
expression.
-exceptinside:XYZ Skip occurences of the to-be-replaced text which lie
within XYZ. If the -regex argument is given, XYZ will be
regarded as a regular expression.
-exceptinsidetag:XYZ Skip occurences of the to-be-replaced text which lie
within an XYZ tag.
-summary:XYZ Set the summary message text for the edit to XYZ, bypassing
the predefined message texts with original and replacements
inserted.
-sleep:123 If you use -fix you can check multiple regex at the same time
in every page. This can lead to a great waste of CPU because
the bot will check every regex without waiting using all the
resources. This will slow it down between a regex and another
in order not to waste too much CPU.
-query: The maximum number of pages that the bot will load at once.
Default value is 60. Ignored when reading an XML file.
-fix:XYZ Perform one of the predefined replacements tasks, which are
given in the dictionary 'fixes' defined inside the file
fixes.py.
The -regex and -nocase argument and given replacements will
be ignored if you use -fix.
Currently available predefined fixes are:
&fixes-help;
-always Don't prompt you for each replacement
-recursive Recurse replacement as long as possible. Be careful, this
might lead to an infinite loop.
-allowoverlap When occurences of the pattern overlap, replace all of them.
Be careful, this might lead to an infinite loop.
other: First argument is the old text, second argument is the new
text. If the -regex argument is given, the first argument
will be regarded as a regular expression, and the second
argument might contain expressions like \\1 or \g<name>.
It is possible to introduce more than one pair of old text
and replacement.
Examples:
If you want to change templates from the old syntax, e.g. {{msg:Stub}}, to the
new syntax, e.g. {{Stub}}, download an XML dump file (pages-articles) from
http://download.wikimedia.org, then use this command:
python replace.py -xml -regex "{{msg:(.*?)}}" "{{\\1}}"
If you have a dump called foobar.xml and want to fix typos in articles, e.g.
Errror -> Error, use this:
python replace.py -xml:foobar.xml "Errror" "Error" -namespace:0
If you want to do more than one replacement at a time, use this:
python replace.py -xml:foobar.xml "Errror" "Error" "Faail" "Fail" -namespace:0
If you have a page called 'John Doe' and want to fix the format of ISBNs, use:
python replace.py -page:John_Doe -fix:isbn
This command will change 'referer' to 'referrer', but not in pages which
talk about HTTP, where the typo has become part of the standard:
python replace.py referer referrer -file:typos.txt -excepttext:HTTP
"""
from __future__ import generators
#
# (C) Daniel Herding & the Pywikipedia team, 2004-2009
#
__version__='$Id: replace.py 7695 2009-11-26 09:28:38Z alexsh $'
#
# Distributed under the terms of the MIT license.
#
import sys, re, time
import wikipedia as pywikibot
import pagegenerators
import editarticle
import webbrowser
# Imports predefined replacements tasks from fixes.py
import fixes
# This is required for the text that is shown when you run this script
# with the parameter -help.
docuReplacements = {
'¶ms;': pagegenerators.parameterHelp,
'&fixes-help;': fixes.help,
}
# Summary messages in different languages
# NOTE: Predefined replacement tasks might use their own dictionary, see 'fixes'
# below.
msg = {
'ar': u'%s : ',
'ca': u'Robot: Reemplaament automtic de text %s',
'cs': u'Robot automaticky nahradil text: %s',
'de': u'Bot: Automatisierte Textersetzung %s',
'el': u': %s',
'en': u'Robot: Automated text replacement %s',
'es': u'Robot: Reemplazo automtico de texto %s',
'fa': u': %s',
'fi': u'Botti korvasi automaattisesti tekstin %s',
'fr': u'Robot : Remplacement de texte automatis %s',
'he': u': %s',
'hu': u'Robot: Automatikus szvegcsere %s',
'ia': u'Robot: Reimplaciamento automatic de texto %s',
'id': u'Bot: Penggantian teks otomatis %s',
'is': u'Vlmenni: breyti texta %s',
'it': u'Bot: Sostituzione automatica %s',
'ja': u': %s',
'ka': u': %s',
'kk': u': : %s',
'ksh': u'Bot: ht outomatesch Tx jetuusch: %s',
'lt': u'robotas: Automatinis teksto keitimas %s',
'nds': u'Bot: Text automaatsch utwesselt: %s',
'nds-nl': u'Bot: autematisch tekse vervungen %s',
'nl': u'Bot: automatisch tekst vervangen %s',
'nn': u'robot: automatisk teksterstatning: %s',
'no': u'robot: automatisk teksterstatning: %s',
'pl': u'Robot automatycznie zamienia tekst %s',
'pt': u'Bot: Mudana automtica %s',
'ru': u': %s',
'sr': u': %s',
'sv': u'Bot: Automatisk textersttning: %s',
'uk': u': : %s',
'zh': u': %s',
}
class XmlDumpReplacePageGenerator:
"""
Iterator that will yield Pages that might contain text to replace.
These pages will be retrieved from a local XML dump file.
Arguments:
* xmlFilename - The dump's path, either absolute or relative
* xmlStart - Skip all articles in the dump before this one
* replacements - A list of 2-tuples of original text (as a
compiled regular expression) and replacement
text (as a string).
* exceptions - A dictionary which defines when to ignore an
occurence. See docu of the ReplaceRobot
constructor below.
"""
def __init__(self, xmlFilename, xmlStart, replacements, exceptions):
self.xmlFilename = xmlFilename
self.replacements = replacements
self.exceptions = exceptions
self.xmlStart = xmlStart
self.skipping = bool(xmlStart)
self.excsInside = []
if "inside-tags" in self.exceptions:
self.excsInside += self.exceptions['inside-tags']
if "inside" in self.exceptions:
self.excsInside += self.exceptions['inside']
import xmlreader
self.site = pywikibot.getSite()
dump = xmlreader.XmlDump(self.xmlFilename)
self.parser = dump.parse()
def __iter__(self):
try:
for entry in self.parser:
if self.skipping:
if entry.title != self.xmlStart:
continue
self.skipping = False
if not self.isTitleExcepted(entry.title) \
and not self.isTextExcepted(entry.text):
new_text = entry.text
for old, new in self.replacements:
new_text = pywikibot.replaceExcept(new_text, old, new, self.excsInside, self.site)
if new_text != entry.text:
yield pywikibot.Page(self.site, entry.title)
except KeyboardInterrupt:
try:
if not self.skipping:
pywikibot.output(
u'To resume, use "-xmlstart:%s" on the command line.'
% entry.title)
except NameError:
pass
def isTitleExcepted(self, title):
if "title" in self.exceptions:
for exc in self.exceptions['title']:
if exc.search(title):
return True
if "require-title" in self.exceptions:
for req in self.exceptions['require-title']:
if not req.search(title): # if not all requirements are met:
return True
return False
def isTextExcepted(self, text):
if "text-contains" in self.exceptions:
for exc in self.exceptions['text-contains']:
if exc.search(text):
return True
return False
class ReplaceRobot:
"""
A bot that can do text replacements.
"""
def __init__(self, generator, replacements, exceptions={},
acceptall=False, allowoverlap=False, recursive=False,
addedCat=None, sleep=None, editSummary=''):
"""
Arguments:
* generator - A generator that yields Page objects.
* replacements - A list of 2-tuples of original text (as a
compiled regular expression) and replacement
text (as a string).
* exceptions - A dictionary which defines when not to change an
occurence. See below.
* acceptall - If True, the user won't be prompted before changes
are made.
* allowoverlap - If True, when matches overlap, all of them are
replaced.
* addedCat - If set to a value, add this category to every page
touched.
Structure of the exceptions dictionary:
This dictionary can have these keys:
title
A list of regular expressions. All pages with titles that
are matched by one of these regular expressions are skipped.
text-contains
A list of regular expressions. All pages with text that
contains a part which is matched by one of these regular
expressions are skipped.
inside
A list of regular expressions. All occurences are skipped which
lie within a text region which is matched by one of these
regular expressions.
inside-tags
A list of strings. These strings must be keys from the
exceptionRegexes dictionary in pywikibot.replaceExcept().
"""
self.generator = generator
self.replacements = replacements
self.exceptions = exceptions
self.acceptall = acceptall
self.allowoverlap = allowoverlap
self.recursive = recursive
if addedCat:
site = pywikibot.getSite()
self.addedCat = pywikibot.Page(site, addedCat, defaultNamespace=14)
self.sleep = sleep
# Some function to set default editSummary should probably be added
self.editSummary = editSummary
def isTitleExcepted(self, title):
"""
Iff one of the exceptions applies for the given title, returns True.
"""
if "title" in self.exceptions:
for exc in self.exceptions['title']:
if exc.search(title):
return True
if "require-title" in self.exceptions:
for req in self.exceptions['require-title']:
if not req.search(title):
return True
return False
def isTextExcepted(self, original_text):
"""
Iff one of the exceptions applies for the given page contents,
returns True.
"""
if "text-contains" in self.exceptions:
for exc in self.exceptions['text-contains']:
if exc.search(original_text):
return True
return False
def doReplacements(self, original_text):
"""
Returns the text which is generated by applying all replacements to
the given text.
"""
new_text = original_text
exceptions = []
if "inside-tags" in self.exceptions:
exceptions += self.exceptions['inside-tags']
if "inside" in self.exceptions:
exceptions += self.exceptions['inside']
for old, new in self.replacements:
if self.sleep is not None:
time.sleep(self.sleep)
new_text = pywikibot.replaceExcept(new_text, old, new, exceptions,
allowoverlap=self.allowoverlap)
return new_text
def run(self):
"""
Starts the robot.
"""
# Run the generator which will yield Pages which might need to be
# changed.
for page in self.generator:
if self.isTitleExcepted(page.title()):
pywikibot.output(
u'Skipping %s because the title is on the exceptions list.'
% page.aslink())
continue
try:
# Load the page's text from the wiki
original_text = page.get(get_redirect=True)
if not page.canBeEdited():
pywikibot.output(u"You can't edit page %s"
% page.aslink())
continue
except pywikibot.NoPage:
pywikibot.output(u'Page %s not found' % page.aslink())
continue
new_text = original_text
while True:
if self.isTextExcepted(new_text):
pywikibot.output(
u'Skipping %s because it contains text that is on the exceptions list.'
% page.aslink())
break
new_text = self.doReplacements(new_text)
if new_text == original_text:
pywikibot.output(u'No changes were necessary in %s'
% page.aslink())
break
if self.recursive:
newest_text = self.doReplacements(new_text)
while (newest_text!=new_text):
new_text = newest_text
newest_text = self.doReplacements(new_text)
if hasattr(self, "addedCat"):
cats = page.categories()
if self.addedCat not in cats:
cats.append(self.addedCat)
new_text = pywikibot.replaceCategoryLinks(new_text,
cats)
# Show the title of the page we're working on.
# Highlight the title in purple.
pywikibot.output(u"\n\n>>> \03{lightpurple}%s\03{default} <<<"
% page.title())
pywikibot.showDiff(original_text, new_text)
if self.acceptall:
break
choice = pywikibot.inputChoice(
u'Do you want to accept these changes?',
['Yes', 'No', 'Edit', 'open in Browser', 'All', "Quit"],
['y', 'N', 'e', 'b', 'a', 'q'], 'N')
if choice == 'e':
editor = editarticle.TextEditor()
as_edited = editor.edit(original_text)
# if user didn't press Cancel
if as_edited and as_edited != new_text:
new_text = as_edited
continue
if choice == 'b':
webbrowser.open("http://%s%s" % (
page.site().hostname(),
page.site().nice_get_address(page.title())
))
pywikibot.input("Press Enter when finished in browser.")
original_text = page.get(get_redirect=True, force=True)
new_text = original_text
continue
if choice == 'q':
return
if choice == 'a':
self.acceptall = True
if choice == 'y':
page.put_async(new_text, self.editSummary)
# choice must be 'N'
break
if self.acceptall and new_text != original_text:
try:
page.put(new_text, self.editSummary)
except pywikibot.EditConflict:
pywikibot.output(u'Skipping %s because of edit conflict'
% (page.title(),))
except pywikibot.SpamfilterError, e:
pywikibot.output(
u'Cannot change %s because of blacklist entry %s'
% (page.title(), e.url))
except pywikibot.PageNotSaved, error:
pywikibot.output(u'Error putting page: %s'
% (error.args,))
except pywikibot.LockedPage:
pywikibot.output(u'Skipping %s (locked page)'
% (page.title(),))
def prepareRegexForMySQL(pattern):
pattern = pattern.replace('\s', '[:space:]')
pattern = pattern.replace('\d', '[:digit:]')
pattern = pattern.replace('\w', '[:alnum:]')
pattern = pattern.replace("'", "\\" + "'")
#pattern = pattern.replace('\\', '\\\\')
#for char in ['[', ']', "'"]:
# pattern = pattern.replace(char, '\%s' % char)
return pattern
def main(*args):
add_cat = None
gen = None
# summary message
summary_commandline = False
# Array which will collect commandline parameters.
# First element is original text, second element is replacement text.
commandline_replacements = []
# A list of 2-tuples of original text and replacement text.
replacements = []
# Don't edit pages which contain certain texts.
exceptions = {
'title': [],
'text-contains': [],
'inside': [],
'inside-tags': [],
'require-title': [], # using a seperate requirements dict needs some
} # major refactoring of code.
# Should the elements of 'replacements' and 'exceptions' be interpreted
# as regular expressions?
regex = False
# Predefined fixes from dictionary 'fixes' (see above).
fix = None
# the dump's path, either absolute or relative, which will be used
# if -xml flag is present
xmlFilename = None
useSql = False
PageTitles = []
# will become True when the user presses a ('yes to all') or uses the
# -always flag.
acceptall = False
# Will become True if the user inputs the commandline parameter -nocase
caseInsensitive = False
# Will become True if the user inputs the commandline parameter -dotall
dotall = False
# Will become True if the user inputs the commandline parameter -multiline
multiline = False
# Do all hits when they overlap
allowoverlap = False
# Do not recurse replacement
recursive = False
# This is the maximum number of pages to load per query
maxquerysize = 60
# This factory is responsible for processing command line arguments
# that are also used by other scripts and that determine on which pages
# to work on.
genFactory = pagegenerators.GeneratorFactory()
# Load default summary message.
# BUG WARNING: This is probably incompatible with the -lang parameter.
editSummary = pywikibot.translate(pywikibot.getSite(), msg)
# Between a regex and another (using -fix) sleep some time (not to waste
# too much CPU
sleep = None
# Read commandline parameters.
for arg in pywikibot.handleArgs(*args):
if arg == '-regex':
regex = True
elif arg.startswith('-xmlstart'):
if len(arg) == 9:
xmlStart = pywikibot.input(
u'Please enter the dumped article to start with:')
else:
xmlStart = arg[10:]
elif arg.startswith('-xml'):
if len(arg) == 4:
xmlFilename = pywikibot.input(
u'Please enter the XML dump\'s filename:')
else:
xmlFilename = arg[5:]
elif arg =='-sql':
useSql = True
elif arg.startswith('-page'):
if len(arg) == 5:
PageTitles.append(pywikibot.input(
u'Which page do you want to change?'))
else:
PageTitles.append(arg[6:])
elif arg.startswith('-excepttitle:'):
exceptions['title'].append(arg[13:])
elif arg.startswith('-requiretitle:'):
exceptions['require-title'].append(arg[14:])
elif arg.startswith('-excepttext:'):
exceptions['text-contains'].append(arg[12:])
elif arg.startswith('-exceptinside:'):
exceptions['inside'].append(arg[14:])
elif arg.startswith('-exceptinsidetag:'):
exceptions['inside-tags'].append(arg[17:])
elif arg.startswith('-fix:'):
fix = arg[5:]
elif arg.startswith('-sleep:'):
sleep = float(arg[7:])
elif arg == '-always':
acceptall = True
elif arg == '-recursive':
recursive = True
elif arg == '-nocase':
caseInsensitive = True
elif arg == '-dotall':
dotall = True
elif arg == '-multiline':
multiline = True
elif arg.startswith('-addcat:'):
add_cat = arg[8:]
elif arg.startswith('-summary:'):
editSummary = arg[9:]
summary_commandline = True
elif arg.startswith('-allowoverlap'):
allowoverlap = True
elif arg.startswith('-query:'):
maxquerysize = int(arg[7:])
else:
if not genFactory.handleArg(arg):
commandline_replacements.append(arg)
if (len(commandline_replacements) % 2):
raise pywikibot.Error, 'require even number of replacements.'
elif (len(commandline_replacements) == 2 and fix is None):
replacements.append((commandline_replacements[0],
commandline_replacements[1]))
if not summary_commandline:
editSummary = pywikibot.translate(pywikibot.getSite(), msg ) % (' (-' + commandline_replacements[0] + ' +'
+ commandline_replacements[1] + ')')
elif (len(commandline_replacements) > 1):
if (fix is None):
for i in xrange (0, len(commandline_replacements), 2):
replacements.append((commandline_replacements[i],
commandline_replacements[i + 1]))
if not summary_commandline:
pairs = [( commandline_replacements[i],
commandline_replacements[i + 1] )
for i in range(0, len(commandline_replacements), 2)]
replacementsDescription = '(%s)' % ', '.join(
[('-' + pair[0] + ' +' + pair[1]) for pair in pairs])
editSummary = pywikibot.translate(pywikibot.getSite(), msg ) % replacementsDescription
else:
raise pywikibot.Error(
'Specifying -fix with replacements is undefined')
elif fix is None:
old = pywikibot.input(u'Please enter the text that should be replaced:')
new = pywikibot.input(u'Please enter the new text:')
change = '(-' + old + ' +' + new
replacements.append((old, new))
while True:
old = pywikibot.input(
u'Please enter another text that should be replaced, or press Enter to start:')
if old == '':
change = change + ')'
break
new = pywikibot.input(u'Please enter the new text:')
change = change + ' & -' + old + ' +' + new
replacements.append((old, new))
if not summary_commandline:
default_summary_message = pywikibot.translate(pywikibot.getSite(), msg) % change
pywikibot.output(u'The summary message will default to: %s'
% default_summary_message)
summary_message = pywikibot.input(
u'Press Enter to use this default message, or enter a description of the\nchanges your bot will make:')
if summary_message == '':
summary_message = default_summary_message
editSummary = summary_message
else:
# Perform one of the predefined actions.
try:
fix = fixes.fixes[fix]
except KeyError:
pywikibot.output(u'Available predefined fixes are: %s'
% fixes.fixes.keys())
return
if "regex" in fix:
regex = fix['regex']
if "msg" in fix:
editSummary = pywikibot.translate(pywikibot.getSite(), fix['msg'])
if "exceptions" in fix:
exceptions = fix['exceptions']
if "nocase" in fix:
caseInsensitive = fix['nocase']
replacements = fix['replacements']
#Set the regular expression flags
flags = re.UNICODE
if caseInsensitive:
flags = flags | re.IGNORECASE
if dotall:
flags = flags | re.DOTALL
if multiline:
flags = flags | re.MULTILINE
# Pre-compile all regular expressions here to save time later
for i in range(len(replacements)):
old, new = replacements[i]
if not regex:
old = re.escape(old)
oldR = re.compile(old, flags)
replacements[i] = oldR, new
for exceptionCategory in ['title', 'require-title', 'text-contains', 'inside']:
if exceptionCategory in exceptions:
patterns = exceptions[exceptionCategory]
if not regex:
patterns = [re.escape(pattern) for pattern in patterns]
patterns = [re.compile(pattern, flags) for pattern in patterns]
exceptions[exceptionCategory] = patterns
if xmlFilename:
try:
xmlStart
except NameError:
xmlStart = None
gen = XmlDumpReplacePageGenerator(xmlFilename, xmlStart,
replacements, exceptions)
elif useSql:
whereClause = 'WHERE (%s)' % ' OR '.join(
["old_text RLIKE '%s'" % prepareRegexForMySQL(old.pattern)
for (old, new) in replacements])
if exceptions:
exceptClause = 'AND NOT (%s)' % ' OR '.join(
["old_text RLIKE '%s'" % prepareRegexForMySQL(exc.pattern)
for exc in exceptions])
else:
exceptClause = ''
query = u"""
SELECT page_namespace, page_title
FROM page
JOIN text ON (page_id = old_id)
%s
%s
LIMIT 200""" % (whereClause, exceptClause)
gen = pagegenerators.MySQLPageGenerator(query)
elif PageTitles:
pages = [pywikibot.Page(pywikibot.getSite(), PageTitle)
for PageTitle in PageTitles]
gen = iter(pages)
gen = genFactory.getCombinedGenerator(gen)
if not gen:
# syntax error, show help text from the top of this file
pywikibot.showHelp('replace')
return
if xmlFilename:
# XML parsing can be quite slow, so use smaller batches and
# longer lookahead.
preloadingGen = pagegenerators.PreloadingGenerator(gen,
pageNumber=20, lookahead=100)
else:
preloadingGen = pagegenerators.PreloadingGenerator(gen, pageNumber=maxquerysize)
bot = ReplaceRobot(preloadingGen, replacements, exceptions, acceptall, allowoverlap, recursive, add_cat, sleep, editSummary)
bot.run()
if __name__ == "__main__":
try:
main()
finally:
pywikibot.stopme()
|