Contains filters are case sensitive
Namesort descending Location Description
PATH_PUNCTUATION_REMOVE modules/path/path.inc Remove the punctuation from the alias.
PATH_PUNCTUATION_REPLACE modules/path/path.inc Replace the punctuation with the separator in the alias.
PATH_UPDATE_ACTION_DELETE modules/path/path.inc "Create a new alias. Delete the old alias."
PATH_UPDATE_ACTION_LEAVE modules/path/path.inc "Create a new alias. Leave the existing alias functioning."
PATH_UPDATE_ACTION_NO_NEW modules/path/path.inc "Do nothing. Leave the old alias intact."
PREG_CLASS_CJK modules/search/search.module Matches CJK (Chinese, Japanese, Korean) letter-like characters.
PREG_CLASS_NUMBERS modules/search/search.module Matches all 'N' Unicode character classes (numbers)
PREG_CLASS_PUNCTUATION modules/search/search.module Matches all 'P' Unicode character classes (punctuation)
PREG_CLASS_UNICODE_WORD_BOUNDARY includes/unicode.inc Matches Unicode characters that are word boundaries.
REDIRECT_ACCESS_ALLOW modules/redirect/redirect.module Modules should return this value from hook_redirect_access() to allow access to a redirect.
REDIRECT_ACCESS_DENY modules/redirect/redirect.module Modules should return this value from hook_redirect_access() to deny access to a redirect.
REDIRECT_ACCESS_IGNORE modules/redirect/redirect.module Modules should return this value from hook_redirect_access() to not affect redirect access.
REQUEST_TIME includes/bootstrap.inc Time of the current request in seconds elapsed since the Unix Epoch.
REQUIRED_D7_SCHEMA_VERSION includes/update.inc Minimum schema version of Drupal 7 required for upgrade to Backdrop.
REQUIREMENT_ERROR includes/install.inc Requirement severity -- Error condition; abort installation.
REQUIREMENT_INFO includes/install.inc Requirement severity -- Informational message only.
REQUIREMENT_OK includes/install.inc Requirement severity -- Requirement successfully met.
REQUIREMENT_WARNING includes/install.inc Requirement severity -- Warning condition; proceed but flag warning.
RESPONSIVE_PRIORITY_LOW includes/theme.inc A responsive table class; only show table cell on wide devices.
RESPONSIVE_PRIORITY_MEDIUM includes/theme.inc A responsive table class; hide table cell on narrow devices.
SAVED_DELETED includes/common.inc Return status for saving which deleted an existing item.
SAVED_NEW includes/common.inc Return status for saving which involved creating a new item.
SAVED_UPDATED includes/common.inc Return status for saving which involved an update to an existing item.
SCHEMA_INSTALLED includes/install.inc Indicates that a module has been installed.
SCHEMA_UNINSTALLED includes/install.inc Indicates that a module has not been installed yet.
SEARCH_TYPE modules/search/tests/search.test
SEARCH_TYPE_2 modules/search/tests/search.test
SEARCH_TYPE_JPN modules/search/tests/search.test
SIMPLETEST_MINIMUM_PHP_MEMORY_LIMIT modules/simpletest/simpletest.install Minimum value of PHP memory_limit for SimpleTest.
STREAM_WRAPPERS_ALL includes/stream_wrappers.inc Stream wrapper bit flag -- a filter that matches all wrappers.
STREAM_WRAPPERS_HIDDEN includes/stream_wrappers.inc Stream wrapper type flag -- not visible in the UI or accessible via web, but readable and writable. E.g. the temporary directory for uploads.
STREAM_WRAPPERS_LOCAL includes/stream_wrappers.inc Stream wrapper bit flag -- refers to a local file system location.
STREAM_WRAPPERS_LOCAL_HIDDEN includes/stream_wrappers.inc Stream wrapper type flag -- hidden, readable and writeable using local files.
STREAM_WRAPPERS_LOCAL_NORMAL includes/stream_wrappers.inc Stream wrapper type flag -- visible, readable and writeable using local files.
STREAM_WRAPPERS_NORMAL includes/stream_wrappers.inc Stream wrapper type flag -- the default when 'type' is omitted from hook_stream_wrappers(). This does not include STREAM_WRAPPERS_LOCAL, because PHP grants a greater trust level to local files (for example, they can be used in an…
STREAM_WRAPPERS_READ includes/stream_wrappers.inc Stream wrapper bit flag -- wrapper is readable (almost always true).
STREAM_WRAPPERS_READ_VISIBLE includes/stream_wrappers.inc Stream wrapper type flag -- visible and read-only.
STREAM_WRAPPERS_VISIBLE includes/stream_wrappers.inc Stream wrapper bit flag -- exposed in the UI and potentially web accessible.
STREAM_WRAPPERS_WRITE includes/stream_wrappers.inc Stream wrapper bit flag -- wrapper is writeable.
STREAM_WRAPPERS_WRITE_VISIBLE includes/stream_wrappers.inc Stream wrapper type flag -- visible, readable and writeable.
TAXONOMY_HIERARCHY_DISABLED modules/taxonomy/taxonomy.module Denotes that no term in the vocabulary has a parent.
TAXONOMY_HIERARCHY_MULTIPLE modules/taxonomy/taxonomy.module Denotes that one or more terms in the vocabulary have multiple parents.
TAXONOMY_HIERARCHY_SINGLE modules/taxonomy/taxonomy.module Denotes that one or more terms in the vocabulary has a single parent.
TAXONOMY_LANGUAGE_DISABLED modules/taxonomy/taxonomy.module Denotes that language is disabled on vocabulary.
TAXONOMY_LANGUAGE_ENABLED modules/taxonomy/taxonomy.module Denotes that language is enabled on vocabulary and terms can be assigned language.
TOKEN_MAX_DEPTH modules/system/system.module The maximum depth for token tree recursion.
TRANSLATION_ENABLED modules/translation/translation.module Identifies a content type which has translation support enabled.
UNICODE_ERROR includes/unicode.inc Indicates an error during check for PHP unicode support.
UNICODE_MULTIBYTE includes/unicode.inc Indicates that full unicode support with the PHP mbstring extension is being used.
UNICODE_SINGLEBYTE includes/unicode.inc Indicates that standard PHP (emulated) unicode support is being used.

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