Inspired by ModPerlize I crafted the attached script to analyse usage of globals in the TWiki core. The analysis was run on the checked in code as of 17the June 2004.
If you run the script on a TWiki that has plugins installed, it will analyse the plugins as well.
Global refs are references to the variable outside the
module where it was declared. Local refs are refs within the file where it was declared.
Seems to me all those with 0 global refs could be converted to "my" variables now, today, without affecting anything else.
-- CrawfordCurrie - 19 Jun 2004
fixed typo -- mhw
Nice work!
-- MartinCleaver - 07 Sep 2004
- hooly dooly 
thanks. thats an interesting list! -- SvenDowideit - 19 Jun 2004 - 16:29
Session-specific globals are now held in a single TWiki "session" object. This topic is therefore redundant. DeleteMe.
| Variable | Global refs | Local refs | Referrer |
|---|---|---|---|
$TWiki::dispViewPath |
0 | 3 | |
$TWiki::Plugins::InterwikiPlugin::web |
0 | 2 | |
$TWiki::wikiToolName |
2 | 3 | TWiki::Func, TWiki::Vars::Internal |
$TWiki::Attach::attachmentCount |
0 | 2 | |
$TWiki::Plugins::EmptyPlugin::debug |
0 | 15 | |
$TWiki::Plugins::EmptyPlugin::user |
0 | 1 | |
$TWiki::urlCharEncoding |
0 | 3 | |
$TWiki::wikiPrefsTopicname |
3 | 2 | TWiki::Vars::Internal, TWiki::Prefs |
$TWiki::statsTopViews |
1 | 1 | TWiki::UI::Statistics |
$TWiki::mainTopicname |
6 | 6 | TWiki::Search, TWiki::Vars::Internal, TWiki::UI::Manage, TWiki::UI |
$TWiki::mimeTypesFilename |
1 | 1 | TWiki::UI::Viewfile |
$TWiki::htpasswdFilename |
8 | 1 | TWiki::User::HtPasswdUser |
@TWiki::Plugins::instPlugins |
0 | 6 | |
$TWiki::Plugins::DefaultPlugin::user |
0 | 91 | |
$TWiki::doLogTopicAttach |
1 | 1 | TWiki::UI::Upload |
@TWiki::Plugins::registrableHandlers |
0 | 3 | |
$TWiki::Plugins::InterwikiPlugin::mixedAlphaNum |
0 | 16 | |
@TWiki::storeSettings |
1 | 1 | TWiki::Store |
$TWiki::cgiQuery |
3 | 10 | TWiki::Vars::Internal |
$TWiki::storeTopicImpl |
2 | 1 | TWiki::Store |
$TWiki::statsTopContrib |
1 | 1 | TWiki::UI::Statistics |
%TWiki::regex |
14 | 67 | TWiki::Func, TWiki::Search, TWiki::UI::Statistics, TWiki::UI::Upload, TWiki::Store |
$TWiki::Plugins::InterwikiPlugin::topic |
0 | 3 | |
$TWiki::Plugins::VERSION |
56 | 2 | TWiki::Func, TWiki::Plugins::EmptyPlugin, TWiki::Plugins::DefaultPlugin, TWiki::Plugins::InterwikiPlugin |
$TWiki::doGetScriptUrlFromCgi |
0 | 2 | |
$TWiki::useUnicode |
0 | 0 | |
$TWiki::useLocale |
6 | 5 | TWiki::User::HtPasswdUser, TWiki::Search, TWiki::User::NoPasswdUser, TWiki::Store, TWiki::User, TWiki::Plugins::InterwikiPlugin |
$TWiki::debugSystemTime |
0 | 3 | |
$TWiki::doLogTopicView |
1 | 1 | TWiki::UI::View |
$TWiki::Plugins::EmptyPlugin::exampleCfgVar |
0 | 1 | |
$TWiki::UI::Manage::mainTopicname |
0 | 3 | |
$TWiki::Plugins::InterwikiPlugin::VERSION |
0 | 1 | |
$TWiki::endRcsCmd |
0 | 1 | |
$TWiki::wikiHomeUrl |
1 | 2 | TWiki::Vars::Internal |
$TWiki::scriptSuffix |
3 | 7 | TWiki::Vars::Internal, TWiki::Form |
$TWiki::scriptUrlPath |
4 | 6 | TWiki::Func, TWiki::UI::RDiff, TWiki::UI::View, TWiki::Form |
@TWiki::Access::processedGroups |
0 | 4 | |
$TWiki::localeRegexes |
0 | 2 | |
%TWiki::Access::allGroups |
0 | 6 | |
$TWiki::Plugins::EmptyPlugin::web |
0 | 3 | |
$TWiki::dispScriptUrlPath |
1 | 7 | TWiki::Vars::Internal |
$TWiki::fgrepCmd |
1 | 1 | TWiki::Search |
$TWiki::Prefs::finalPrefsName |
5 | 0 | TWiki::Prefs |
%TWiki::Plugins::onlyOnceHandlers |
0 | 2 | |
$TWiki::wikiUserName |
11 | 4 | TWiki::Func, TWiki::Search, TWiki::Vars::Internal, TWiki::Store |
$TWiki::doLogTopicEdit |
1 | 1 | TWiki::UI::Edit |
$TWiki::Plugins::DefaultPlugin::doOldInclude |
0 | 2 | |
$TWiki::Plugins::EmptyPlugin::pluginName |
0 | 16 | |
$TWiki::statisticsTopicname |
3 | 2 | TWiki::UI::Statistics, TWiki::Vars::Internal |
$TWiki::nullDev |
0 | 1 | |
$TWiki::wikiUsersTopicname |
2 | 2 | TWiki::Vars::Internal, TWiki::User |
%TWiki::Prefs::PrefsCache::topicCache |
0 | 4 | |
$TWiki::Plugins::InterwikiPlugin::prefixPattern |
0 | 2 | |
$TWiki::TranslationToken |
2 | 6 | TWiki::Search |
$TWiki::Plugins::EmptyPlugin::topic |
0 | 3 | |
$TWiki::remoteUserFilename |
0 | 3 | |
$TWiki::doRemovePortNumber |
0 | 2 | |
$TWiki::Plugins::EmptyPlugin::installWeb |
0 | 1 | |
@TWiki::Render::listElements |
0 | 7 | |
$TWiki::Prefs::requestPrefs |
0 | 5 | |
$TWiki::webPrefsTopicname |
4 | 2 | TWiki::Vars::Internal, TWiki::Prefs, TWiki::UI::Manage |
@TWiki::Plugins::disabledPlugins |
0 | 3 | |
$TWiki::Plugins::InterwikiPlugin::suppressTooltip |
0 | 2 | |
$TWiki::basicInitDone |
0 | 3 | |
$TWiki::doRemoveImgInMailnotify |
0 | 1 | |
$TWiki::keywordMode |
0 | 1 | |
$TWiki::templateDir |
4 | 1 | TWiki::Store, TWiki::UI::View, TWiki::UI::Oops |
$TWiki::Net::helloHost |
0 | 3 | |
%TWiki::Plugins::registeredHandlers |
0 | 5 | |
$TWiki::Prefs::requestWeb |
0 | 7 | |
$TWiki::doLogRename |
1 | 1 | TWiki::Store |
$TWiki::urlHost |
8 | 10 | TWiki::Func, TWiki::UI::RDiff, TWiki::Vars::Internal, TWiki::UI::Viewfile, TWiki::UI::View |
$TWiki::doMapUserToWikiName |
0 | 2 | |
$TWiki::Plugins::InterwikiPlugin::pagePattern |
0 | 3 | |
$TWiki::doLogTopicUpload |
1 | 1 | TWiki::UI::Upload |
$TWiki::viewScript |
0 | 3 | |
$TWiki::logDir |
0 | 1 | |
$TWiki::Plugins::InterwikiPlugin::interSiteLinkRulesTopicName |
0 | 2 | |
$TWiki::Plugins::EmptyPlugin::VERSION |
0 | 1 | |
$TWiki::lowerNational |
0 | 2 | |
$TWiki::Attach::noviewableAttachmentCount |
0 | 2 | |
@Algorithm::Diff::ISA |
0 | 3 | |
$TWiki::doPluralToSingular |
0 | 2 | |
$TWiki::Prefs::globalPrefs |
0 | 3 | |
$TWiki::lsCmd |
0 | 1 | |
$TWiki::Plugins::DefaultPlugin::renderingWeb |
0 | 2 | |
$TWiki::noSpamPadding |
2 | 1 | TWiki::Render |
$TWiki::Plugins::InterwikiPlugin::debug |
0 | 7 | |
$TWiki::uploadFilter |
1 | 1 | TWiki::UI::Upload |
$TWiki::disableAllPlugins |
1 | 3 | TWiki::Plugins |
$TWiki::Attach::viewableAttachmentCount |
0 | 3 | |
$TWiki::storeImpl |
0 | 0 | |
%TWiki::Store::templateVars |
0 | 6 | |
$TWiki::Plugins::InterwikiPlugin::postfixPattern |
0 | 2 | |
%TWiki::User::HtPasswdUser::templateVars |
0 | 0 | |
%TWiki::Plugins::InterwikiPlugin::interSiteTable |
0 | 3 | |
@Algorithm::Diff::EXPORT |
0 | 1 | |
$TWiki::doLogTopicSearch |
1 | 1 | TWiki::Search |
$TWiki::siteLang |
1 | 4 | TWiki::Vars::Internal |
$TWiki::Net::useNetSmtp |
0 | 3 | |
$TWiki::doLogTopicSave |
3 | 1 | TWiki::Store |
$TWiki::safeEnvPath |
0 | 3 | |
$TWiki::userListFilename |
0 | 2 | |
$TWiki::attachAsciiPath |
0 | 1 | |
%TWiki::User::templateVars |
0 | 1 | |
%TWiki::mon2num |
0 | 2 | |
$TWiki::defaultUrlHost |
0 | 2 | |
%TWiki::EXPORT_TAGS |
0 | 1 | |
$TWiki::Plugins::InterwikiPlugin::sitePattern |
0 | 5 | |
$TWiki::Render::newTopicBgColor |
0 | 2 | |
$TWiki::siteLocale |
0 | 9 | |
$Algorithm::Diff::VERSION |
1 | 1 | TWiki::Store::RcsLite |
$TWiki::siteWebTopicName |
0 | 3 | |
$TWiki::numberOfRevisions |
6 | 1 | TWiki::UI::RDiff, TWiki::UI::View |
$TWiki::OS |
4 | 1 | TWiki::Store::RcsWrap, TWiki::UI::Statistics, TWiki::UI::Upload |
$TWiki::wikiversion |
1 | 2 | TWiki::Vars::Internal |
$TWiki::upperNational |
0 | 2 | |
$TWiki::Plugins::DefaultPlugin::installWeb |
0 | 10 | |
$TWiki::siteCharsetOverride |
0 | 2 | |
$TWiki::doSecureInclude |
0 | 2 | |
@TWiki::publicWebList |
0 | 5 | |
$TWiki::Plugins::DefaultPlugin::debug |
0 | 21 | |
$TWiki::egrepCmd |
1 | 1 | TWiki::Search |
$TWiki::pubDir |
1 | 3 | TWiki |
$TWiki::logFilename |
2 | 1 | TWiki::UI::Statistics, TWiki::Store |
$TWiki::defaultUserName |
2 | 6 | TWiki::Func, TWiki::Store::RcsFile |
$TWiki::Plugins::initialisationErrors |
0 | 2 | |
$TWiki::webName |
25 | 27 | TWiki::Search, TWiki::Access, TWiki::Vars::Internal, TWiki, TWiki::Render, TWiki::Store |
$TWiki::script |
0 | 4 | |
$TWiki::displayTimeValues |
0 | 4 | |
$TWiki::Search::cacheRev1date |
0 | 2 | |
$TWiki::readTopicPermissionFailed |
6 | 1 | TWiki::UI::RDiff, TWiki::Store, TWiki::UI::View |
%TWiki::wikiToUserList |
0 | 3 | |
$TWiki::Vars::Parser::varChars |
0 | 3 | |
$TWiki::doDebugStatistics |
3 | 1 | TWiki::UI::Statistics |
$TWiki::superAdminGroup |
4 | 1 | TWiki::Access, TWiki::UI |
$TWiki::doLogTopicRdiff |
1 | 1 | TWiki::UI::RDiff |
$TWiki::Net::mailInitialized |
0 | 3 | |
$TWiki::doLogRegistration |
0 | 1 | |
$TWiki::wikiName |
2 | 13 | TWiki::Func, TWiki::Vars::Internal |
$TWiki::mainWebname |
20 | 8 | TWiki::Func, TWiki::UI::Edit, TWiki::Vars::Internal, TWiki::Prefs, TWiki::UI, TWiki::UI::Statistics, TWiki::Access, TWiki::User, TWiki::Form |
@TWiki::Render::listTypes |
0 | 11 | |
$TWiki::siteCharset |
1 | 20 | TWiki::Vars::Internal |
$TWiki::Net::mailHost |
0 | 5 | |
@Algorithm::Diff::EXPORT_OK |
0 | 1 | |
%TWiki::Prefs::webPrefs |
0 | 8 | |
@TWiki::weekDay |
0 | 3 | |
$TWiki::userName |
12 | 11 | TWiki::Vars::Internal, TWiki::Store::RcsFile, TWiki::Store |
$TWiki::doKeepRevIfEditLock |
1 | 1 | TWiki::Store |
$TWiki::includingTopicName |
1 | 4 | TWiki::Vars::Internal |
$TWiki::pubUrlPath |
3 | 8 | TWiki::Attach, TWiki::Vars::Internal |
$TWiki::formatVersion |
1 | 1 | TWiki::Store |
$TWiki::mailProgram |
2 | 1 | TWiki::Net |
$TWiki::twikiWebname |
10 | 3 | TWiki::Func, TWiki::Plugins, TWiki::Attach, TWiki::Vars::Internal, TWiki::Prefs, TWiki::Store |
@TWiki::EXPORT_OK |
0 | 1 | |
$TWiki::dataDir |
26 | 8 | TWiki::UI::Changes, TWiki::Search, TWiki, TWiki::Render, TWiki::UI::Manage, TWiki::Store |
$TWiki::includingWebName |
1 | 4 | TWiki::Vars::Internal |
$TWiki::Render::isList |
0 | 8 | |
%TWiki::userToWikiList |
0 | 3 | |
$TWiki::pageMode |
0 | 4 | |
@TWiki::Plugins::activePluginWebs |
0 | 4 | |
$TWiki::Plugins::InterwikiPlugin::installWeb |
0 | 3 | |
$TWiki::Plugins::InterwikiPlugin::upperAlpha |
0 | 18 | |
%TWiki::User::NoPasswdUser::templateVars |
0 | 0 | |
@TWiki::isoMonth |
3 | 5 | TWiki::UI::Edit, TWiki::UI::Statistics, TWiki::Store |
$TWiki::rcsArg |
0 | 1 | |
$TWiki::doLogTopicChanges |
1 | 1 | TWiki::UI::Changes |
$TWiki::Plugins::DefaultPlugin::web |
0 | 319 | |
$TWiki::Plugins::DefaultPlugin::VERSION |
0 | 1 | |
$TWiki::Plugins::InterwikiPlugin::user |
0 | 1 | |
$TWiki::Plugins::DefaultPlugin::pluginName |
0 | 17 | |
@TWiki::ISA |
0 | 1 | |
$TWiki::Render::newTopicFontColor |
0 | 2 | |
@TWiki::Plugins::activePluginTopics |
0 | 8 | |
$TWiki::debugFilename |
0 | 3 | |
$TWiki::Plugins::DefaultPlugin::topic |
0 | 343 | |
$TWiki::Search::cacheRev1user |
0 | 4 | |
$TWiki::notifyTopicname |
1 | 3 | TWiki::Vars::Internal |
$TWiki::editLockTime |
8 | 1 | TWiki::Func, TWiki::UI::Edit, TWiki::UI::Manage, TWiki::Store |
$TWiki::securityFilter |
11 | 8 | TWiki::Search, TWiki::Store::RcsWrap, TWiki::UI::Manage, TWiki::Store |
$TWiki::debugUserTime |
0 | 4 | |
$TWiki::cmdQuote |
2 | 1 | TWiki::Search |
$TWiki::warningFilename |
1 | 4 | TWiki::Store::RcsWrap |
$TWiki::User::UserImpl |
0 | 5 | |
$TWiki::topicName |
9 | 23 | TWiki::Search, TWiki::Vars::Internal, TWiki::Render, TWiki::Prefs, TWiki::Store |
$TWiki::siteFullLang |
1 | 3 | TWiki::Vars::Internal |
$TWiki::doSuperAdminGroup |
1 | 1 | TWiki::Access |
$TWiki::rcsDir |
0 | 1 | |
$TWiki::doHidePasswdInRegistration |
0 | 1 | |
$TWiki::doRememberRemoteUser |
0 | 4 | |
$TWiki::twikiLibDir |
0 | 11 | |
$TWiki::Search::cacheRev1webTopic |
0 | 3 | |
$TWiki::Render::linkToolTipInfo |
0 | 9 | |
$TWiki::Render::noAutoLink |
0 | 11 |
thanks. thats an interesting list! -- SvenDowideit - 19 Jun 2004 - 16:29
Session-specific globals are now held in a single TWiki "session" object. This topic is therefore redundant. DeleteMe. | BasicForm | |
|---|---|
| TopicClassification | TWikiDevQuestion |
| TopicSummary | Redundant discussion on global variables |
| InterestedParties | |
| RelatedTopics | |
| I | Attachment | Action | Size | Date | Who | Comment |
|---|---|---|---|---|---|---|
 txt |
qa.pl.txt | manage | 3.4 K | 2004-06-19 - 18:49 | CrawfordCurrie |
Topic revision: r7 - 2005-02-13 - CrawfordCurrie
Home 
Site map
Blog web
Create New Topic
Index
Search
Advanced search
My topics of interest
Changes
Major changes only
All tags
Notifications
RSS Feed
Statistics
Preferences
Community 
Readme first
Developers News
How you can help
Community roles
#twiki IRC
Jerusalem Release
Feature Proposals
Bugs Changes
Categories 
Account 
Ideas, requests, problems regarding TWiki? Send feedback. Ask community in the support forum.Copyright © 1999-2012 by the contributing authors. All material on this collaboration platform is the property of the contributing authors.