# -*- 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.
-except:XYZ Ignore pages which contain XYZ. If the -regex argument is
given, XYZ will be regarded as a regular expression.
-summary:XYZ Set the summary message text for the edit to XYZ, bypassing
the predefined message texts with original and replacements
inserted.
-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;
-namespace:n Number of namespace to process. The parameter can be used
multiple times. It works in combination with all other
parameters, except for the -start parameter. If you e.g.
want to iterate over all categories starting at M, use
-start:Category:M.
-always Don't prompt you for each replacement
-recursive Recurse replacement until 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>.
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 have a page called 'John Doe' and want to convert HTML tags to wiki
syntax, use:
python replace.py -page:John_Doe -fix:HTML
"""
#
# (C) Daniel Herding, 2004
#
# Distributed under the terms of the MIT license.
#
from __future__ import generators
import sys, re
import wikipedia, pagegenerators,catlib, config
# 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,
}
__version__='$Id: replace.py 3998 2007-08-07 20:28:27Z wikipedian $'
# Summary messages in different languages
# NOTE: Predefined replacement tasks might use their own dictionary, see 'fixes'
# below.`v
msg = {
'ar':u'%s روبوت : استبدال تلقائي للنص',
'de':u'Bot: Automatisierte Textersetzung %s',
'en':u'Robot: Automated text replacement %s',
'el':u'Ρομπότ: Αυτόματη αντικατάσταση κειμένου %s',
'es':u'Robot: Reemplazo automático de texto %s',
'fr':u'Bot : Remplacement de texte automatisé %s',
'he':u'רובוט: החלפת טקסט אוטומטית %s',
'hu':u'Robot: Automatikus szövegcsere %s',
'ia':u'Robot: Reimplaciamento automatic de texto %s',
'id':u'Bot: Penggantian teks otomatis %s',
'is':u'Vélmenni: breyti texta %s',
'it':u'Bot: Sostituzione automatica %s',
'ka':u'რობოტი: ტექსტის ავტომატური შეცვლა %s',
'ksh':u'Bot: hät outomatesch Täx jetuusch: %s',
'lt':u'robotas: Automatinis teksto keitimas %s',
'nds':u'Bot: Text automaatsch utwesselt: %s',
'nl':u'Bot: automatisch tekst vervangen %s',
'pl':u'Robot automatycznie zamienia tekst %s',
'pt':u'Bot: Mudança automática %s',
'sr':u'Бот: Аутоматска замена текста %s',
}
class XmlDumpReplacePageGenerator:
"""
Generator which will yield Pages to pages that might contain text to
replace. These pages will be retrieved from a local XML dump file
(cur table).
"""
def __init__(self, xmlFilename, replacements, exceptions):
"""
Arguments:
* xmlFilename - The dump's path, either absolute or relative
* replacements - A list of 2-tuples of original text (as a compiled
regular expression) and replacement text (as a
string).
* exceptions - A list of compiled regular expression; pages which
contain text that matches one of these won't be
changed.
"""
self.xmlFilename = xmlFilename
self.replacements = replacements
self.exceptions = exceptions
def __iter__(self):
import xmlreader
mysite = wikipedia.getSite()
dump = xmlreader.XmlDump(self.xmlFilename)
for entry in dump.parse():
for exception in self.exceptions:
if exception.search(entry.text):
break
else:
# TODO: leave out pages that only have old inside nowiki, comments, math
for old, new in self.replacements:
if old.search(entry.text):
yield wikipedia.Page(mysite, entry.title)
break
class ReplaceRobot:
"""
A bot that can do text replacements.
"""
def __init__(self, generator, replacements, exceptions = [], acceptall = False, allowoverlap = False,
recursive = False, addedCat = None):
"""
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 list of compiled regular expression; pages which
contain text that matches one of these won't be
changed.
* 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.
"""
self.generator = generator
self.replacements = replacements
self.exceptions = exceptions
self.acceptall = acceptall
self.allowoverlap = allowoverlap
self.recursive = recursive
self.addedCat = addedCat
def checkExceptions(self, original_text):
"""
If one of the exceptions applies for the given text, returns the
substring which matches the exception. Otherwise it returns None.
"""
for exception in self.exceptions:
hit = exception.search(original_text)
if hit:
return hit.group(0)
return None
def doReplacements(self, original_text):
"""
Returns the text which is generated by applying all replacements to the
given text.
"""
new_text = original_text
for old, new in self.replacements:
# new_text = wikipedia.replaceExcept(new_text, old, new, ['nowiki', 'comment', 'math', 'pre'], allowoverlap = self.allowoverlap)
new_text = wikipedia.replaceExcept(new_text, old, new, ['nowiki', 'math', 'pre'], 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:
try:
# Load the page's text from the wiki
original_text = page.get()
if not page.canBeEdited():
wikipedia.output(u'Skipping locked page %s' % page.title())
continue
except wikipedia.NoPage:
wikipedia.output(u'Page %s not found' % page.title())
continue
except wikipedia.IsRedirectPage:
original_text = page.get(get_redirect=True)
match = self.checkExceptions(original_text)
# skip all pages that contain certain texts
if match:
wikipedia.output(u'Skipping %s because it contains %s' % (page.title(), match))
else:
new_text = self.doReplacements(original_text)
if new_text == original_text:
wikipedia.output('No changes were necessary in %s' % page.title())
else:
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 self.addedCat:
cats = page.categories()
if self.addedCat not in cats:
cats.append(self.addedCat)
new_text = wikipedia.replaceCategoryLinks(new_text, cats)
# Show the title of the page we're working on.
# Highlight the title in purple.
wikipedia.output(u"\n\n>>> \03{lightpurple}%s\03{default} <<<" % page.title())
wikipedia.showDiff(original_text, new_text)
if not self.acceptall:
choice = wikipedia.inputChoice(u'Do you want to accept these changes?', ['Yes', 'No', 'All'], ['y', 'N', 'a'], 'N')
if choice in ['a', 'A']:
self.acceptall = True
if self.acceptall or choice in ['y', 'Y']:
try:
page.put(new_text)
except wikipedia.EditConflict:
wikipedia.output(u'Skipping %s because of edit conflict' % (page.title(),))
except wikipedia.SpamfilterError, e:
wikipedia.output(u'Cannot change %s because of blacklist entry %s' % (page.title(), e.url))
except wikipedia.LockedPage:
wikipedia.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():
gen = None
# summary message
summary_commandline = None
# 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 = []
# 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 when source
# is 'xmldump'.
xmlFilename = None
useSql = False
PageTitles = []
# will become True when the user presses a ('yes to all') or uses the -always
# commandline paramater.
acceptall = False
# Will become True if the user inputs the commandline parameter -nocase
caseInsensitive = False
# Which namespaces should be processed?
# default to [] which means all namespaces will be processed
namespaces = []
# Do all hits when they overlap
allowoverlap = False
# Do not recurse replacement
recursive = False
# 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.
wikipedia.setAction(wikipedia.translate(wikipedia.getSite(), msg))
# Read commandline parameters.
for arg in wikipedia.handleArgs():
if arg == '-regex':
regex = True
elif arg.startswith('-xml'):
if len(arg) == 4:
xmlFilename = wikipedia.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(wikipedia.input(u'Which page do you want to chage?'))
else:
PageTitles.append(arg[6:])
elif arg.startswith('-except:'):
exceptions.append(arg[8:])
elif arg.startswith('-fix:'):
fix = arg[5:]
elif arg == '-always':
acceptall = True
elif arg == '-recursive':
recursive = True
elif arg == '-nocase':
caseInsensitive = True
elif arg.startswith('-namespace:'):
namespaces.append(int(arg[11:]))
elif arg.startswith('-summary:'):
wikipedia.setAction(arg[9:])
summary_commandline = True
elif arg.startswith('-allowoverlap'):
allowoverlap = True
else:
generator = genFactory.handleArg(arg)
if generator:
gen = generator
else:
commandline_replacements.append(arg)
if (len(commandline_replacements)%2):
raise wikipedia.Error, 'require even number of replacements.'
elif (len(commandline_replacements) == 2 and fix == None):
replacements.append((commandline_replacements[0], commandline_replacements[1]))
if summary_commandline == None:
wikipedia.setAction(wikipedia.translate(wikipedia.getSite(), msg ) % ' (-' + commandline_replacements[0] + ' +' + commandline_replacements[1] + ')')
elif (len(commandline_replacements) > 1):
if (fix == None):
#replacements.extend(commandline_replacements)
for i in xrange (0,len(commandline_replacements),2):
replacements.append((commandline_replacements[i],
commandline_replacements[i+1]))
else:
raise wikipedia.Error, 'Specifying -fix with replacements is undefined'
elif fix == None:
old = wikipedia.input(u'Please enter the text that should be replaced:')
new = wikipedia.input(u'Please enter the new text:')
change = '(-' + old + ' +' + new
replacements.append((old, new))
while True:
old = wikipedia.input(u'Please enter another text that should be replaced, or press Enter to start:')
if old == '':
change = change + ')'
break
new = wikipedia.input(u'Please enter the new text:')
change = change + ' & -' + old + ' +' + new
replacements.append((old, new))
if not summary_commandline == True:
default_summary_message = wikipedia.translate(wikipedia.getSite(), msg) % change
wikipedia.output(u'The summary message will default to: %s' % default_summary_message)
summary_message = wikipedia.input(u'Press Enter to use this default message, or enter a description of the changes your bot will make:')
if summary_message == '':
summary_message = default_summary_message
wikipedia.setAction(summary_message)
else:
# Perform one of the predefined actions.
try:
fix = fixes.fixes[fix]
except KeyError:
wikipedia.output(u'Available predefined fixes are: %s' % fixes.fixes.keys())
wikipedia.stopme()
sys.exit()
if fix.has_key('regex'):
regex = fix['regex']
if fix.has_key('msg'):
wikipedia.setAction(wikipedia.translate(wikipedia.getSite(), fix['msg']))
if fix.has_key('exceptions'):
exceptions = fix['exceptions']
replacements = fix['replacements']
# already 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)
if caseInsensitive:
oldR = re.compile(old, re.UNICODE | re.IGNORECASE)
else:
oldR = re.compile(old, re.UNICODE)
replacements[i] = oldR, new
for i in range(len(exceptions)):
exception = exceptions[i]
if not regex:
exception = re.escape(exception)
if caseInsensitive:
exceptionR = re.compile(exception, re.UNICODE | re.IGNORECASE)
else:
exceptionR = re.compile(exception, re.UNICODE)
exceptions[i] = exceptionR
if xmlFilename:
gen = XmlDumpReplacePageGenerator(xmlFilename, 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 = [wikipedia.Page(wikipedia.getSite(), PageTitle) for PageTitle in PageTitles]
gen = iter(pages)
if not gen:
# syntax error, show help text from the top of this file
wikipedia.showHelp('replace')
wikipedia.stopme()
sys.exit()
if namespaces != []:
gen = pagegenerators.NamespaceFilterPageGenerator(gen, namespaces)
preloadingGen = pagegenerators.PreloadingGenerator(gen, pageNumber = 50)
bot = ReplaceRobot(preloadingGen, replacements, exceptions, acceptall, allowoverlap, recursive)
bot.run()
if __name__ == "__main__":
try:
main()
finally:
wikipedia.stopme()
