Method Regexp.PCRE2._pcre()->create()

class Regexp.PCRE2._pcre

Method create

Regexp.PCRE2._pcre Regexp.PCRE2._pcre(string pattern, void|int options, void|object table)

Description

The option bits are:

OPTION.ALLOW_EMPTY_CLASS	Treat a closing square bracket that immediately follows an opening one as a class with no characters
OPTION.ALT_BSUX	Alter handling of \u, \U, and \x to closer match ECMAscript
OPTION.ANCHORED	Force pattern anchoring
OPTION.AUTO_CALLOUT	Automatically inserts callout items, all with number 255, before each pattern item, except immediately before or after an explicit callout in the pattern
OPTION.CASELESS	Do caseless matching
OPTION.DOLLAR_ENDONLY	$ not to match newline at end
OPTION.DOTALL	. matches anything including NL
OPTION.DUPNAMES	Names used to identify capture groups need not be unique
OPTION.ENDANCHORED	The end of any pattern match must be right at the end of the string being searched
OPTION.EXTENDED	Ignore whitespace and # comments
OPTION.FIRSTLINE	The start of an unanchored pattern match must be before or at the first newline in the subject string following the start of matching
OPTION.MATCH_UNSET_BACKREF	A backreference to an unset capture group matches an empty string
OPTION.MULTILINE	^ and $ match newlines within data
OPTION.NEVER_UCP	Locks out the use of Unicode properties
OPTION.NEVER_UTF	Locks out interpretation of the pattern as UTF-8, UTF-16, or UTF-32
OPTION.NO_AUTO_CAPTURE	Disable numbered capturing parentheses (named ones available)
OPTION.NO_AUTO_POSSESS	Disable "auto-possessification"
OPTION.NO_DOTSTAR_ANCHOR	Disables an optimization that is applied when .* is the first significant item in a top-level branch of a pattern, and all the other branches also start with .* or with \A or \G or ^
OPTION.NO_START_OPTIMIZE	Disable start-up optimizations
OPTION.NO_UTF_CHECK	Disable checks for UTF validity
OPTION.UCP	Force the use of Unicode properties
OPTION.UNGREEDY	Invert greediness of quantifiers
OPTION.UTF	Regard both the pattern and the subject strings that are subsequently processed as strings of UTF characters instead of single-code-unit strings
OPTION.NEVER_BACKSLASH_C	Ĺock out the use of \C in the pattern that is being compiled
OPTION.ALT_CIRCUMFLEX	A multiline circumflex also matches after a terminating newline
OPTION.ALT_VERBNAMES	Normal backslash processing is applied to verb names and only an unescaped closing parenthesis terminates the name
OPTION.EXTENDED_MORE	Like OPTION.EXTENDED but, in addition, unescaped space and horizontal tab characters are ignored inside a character class
OPTION.LITERAL	All meta-characters in the pattern are disabled, and it is treated as a literal string
OPTION.MATCH_INVALID_UTF	Enables support for matching in subject strings that contain invalid UTF sequences
OPTION.ALT_EXTENDED_CLASS	Alters the parsing of character classes to follow the extended syntax described by Unicode UTS#18