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.\" ========================================================================
.\"
.IX Title "PPIx::Regexp::Constant 3pm"
.TH PPIx::Regexp::Constant 3pm "2019-04-03" "perl v5.28.1" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.nh
.SH "NAME"
PPIx::Regexp::Constant \- Constants for the PPIx::Regexp system
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
.Vb 2
\& use PPIx::Regexp::Constant qw{ TOKEN_UNKNOWN }
\& print "An unknown token\*(Aqs class is TOKEN_UNKNOWN\en";
.Ve
.SH "INHERITANCE"
.IX Header "INHERITANCE"
\&\f(CW\*(C`PPIx::Regexp::Constant\*(C'\fR is an Exporter.
.PP
\&\f(CW\*(C`PPIx::Regexp::Constant\*(C'\fR has no descendants.
.SH "DETAILS"
.IX Header "DETAILS"
This module defines manifest constants for use by the various
\&\f(CW\*(C`PPIx::Regexp\*(C'\fR modules. These constants are to be considered \fBprivate\fR
to the \f(CW\*(C`PPIx::Regexp\*(C'\fR system, and the author reserves the right to
change them without notice.
.PP
This module exports the following manifest constants:
.ie n .SS "@CARP_NOT"
.el .SS "\f(CW@CARP_NOT\fP"
.IX Subsection "@CARP_NOT"
This global variable contains the names of all modules in the package.
.SS "\s-1ARRAY_REF\s0"
.IX Subsection "ARRAY_REF"
This is the result of \f(CW\*(C`ref []\*(C'\fR.
.SS "\s-1CODE_REF\s0"
.IX Subsection "CODE_REF"
This is the result of \f(CW\*(C`ref sub {}\*(C'\fR.
.SS "\s-1COOKIE_CLASS\s0"
.IX Subsection "COOKIE_CLASS"
The name of the cookie used to control the construction of character
classes.
.PP
This cookie is set in
PPIx::Regexp::Token::Structure when
the left square bracket is encountered, and cleared in the same module
when a right square bracket is encountered.
.SS "\s-1COOKIE_QUANT\s0"
.IX Subsection "COOKIE_QUANT"
The name of the cookie used to control the construction of curly
bracketed quantifiers.
.PP
This cookie is set in
PPIx::Regexp::Token::Structure when a
left curly bracket is encountered. It requests itself to be cleared on
encountering anything other than a literal comma, a literal digit, or an
interpolation, or if more than one comma is encountered. If it survives
until PPIx::Regexp::Token::Structure
processes the right curly bracket, it is cleared there.
.SS "\s-1COOKIE_QUOTE\s0"
.IX Subsection "COOKIE_QUOTE"
The name of the cookie used to control the parsing of \f(CW\*(C`\eQ ... \eE\*(C'\fR
quoted literals.
.PP
This cookie is set in
PPIx::Regexp::Token::Control when a
\&\f(CW\*(C`\eQ\*(C'\fR is encountered, and it persists until the next \f(CW\*(C`\eE\*(C'\fR.
.SS "\s-1COOKIE_REGEX_SET\s0"
.IX Subsection "COOKIE_REGEX_SET"
The name of the cookie used to control regular expression sets.
.SS "\s-1HASH_REF\s0"
.IX Subsection "HASH_REF"
This is the result of \f(CW\*(C`ref {}\*(C'\fR.
.SS "\s-1LITERAL_LEFT_CURLY_ALLOWED\s0"
.IX Subsection "LITERAL_LEFT_CURLY_ALLOWED"
The Perl version at which allowed unescaped literal left curly brackets
were removed. This may make more sense if I mention that its value is
\&\f(CW\*(C`undef\*(C'\fR.
.SS "\s-1LITERAL_LEFT_CURLY_REMOVED_PHASE_1\s0"
.IX Subsection "LITERAL_LEFT_CURLY_REMOVED_PHASE_1"
The Perl version at which the first phase of unescaped literal left
curly bracket removal took place. The value of this constant is
\&\f(CW\*(Aq5.025001\*(Aq\fR.
.SS "\s-1LITERAL_LEFT_CURLY_REMOVED_PHASE_2\s0"
.IX Subsection "LITERAL_LEFT_CURLY_REMOVED_PHASE_2"
The Perl version at which the second phase of unescaped literal left
curly bracket removal took place. The value of this constant is
\&\f(CW\*(C`undef\*(C'\fR, but it will be assigned a value when the timing of the second
phase is known.
.SS "\s-1LITERAL_LEFT_CURLY_REMOVED_PHASE_3\s0"
.IX Subsection "LITERAL_LEFT_CURLY_REMOVED_PHASE_3"
The Perl version at which the third phase of unescaped literal left
curly bracket removal took place. This is the removal of curly brackets
after a left parenthesis. The value of this constant is \f(CW\*(C`undef\*(C'\fR, but it
will be assigned a value when the timing of the second phase is known.
.SS "\s-1MINIMUM_PERL\s0"
.IX Subsection "MINIMUM_PERL"
The minimum version of Perl understood by this parser, as a float. It is
currently set to 5.000, since that is the minimum version of Perl
accessible to the author.
.SS "\s-1MODIFIER_GROUP_MATCH_SEMANTICS\s0"
.IX Subsection "MODIFIER_GROUP_MATCH_SEMANTICS"
The name of the
PPIx::Regexp::Token::Modifier group
used to control match semantics.
.SS "\s-1MSG_PROHIBITED_BY_STRICT\s0"
.IX Subsection "MSG_PROHIBITED_BY_STRICT"
An appropriate error message for an unknown entity created because
\&\f(CW\*(Aqstrict\*(Aq\fR was in effect. This is rank ad-hocery, and more than usually
subject to being changed, without any notice whatsoever. Caveat user.
.SS "\s-1NODE_UNKNOWN\s0"
.IX Subsection "NODE_UNKNOWN"
The name of the class that represents an unknown node. That is,
PPIx::Regexp::Node::Unknown.
.SS "\s-1RE_CAPTURE_NAME\s0"
.IX Subsection "RE_CAPTURE_NAME"
A string representation of a regular expression that matches the name of
a named capture buffer.
.SS "\s-1REGEXP_REF\s0"
.IX Subsection "REGEXP_REF"
This is the result of \f(CW\*(C`ref qr{}\*(C'\fR.
.SS "\s-1SCALAR_REF\s0"
.IX Subsection "SCALAR_REF"
This is the result of \f(CW\*(C`ref \e0\*(C'\fR.
.SS "\s-1STRUCTURE_UNKNOWN\s0"
.IX Subsection "STRUCTURE_UNKNOWN"
The name of the class that represents an unknown structure. That is,
PPIx::Regexp::Structure::Unknown.
.SS "\s-1SUFFICIENT_UTF8_SUPPORT_FOR_WEIRD_DELIMITERS\s0"
.IX Subsection "SUFFICIENT_UTF8_SUPPORT_FOR_WEIRD_DELIMITERS"
A Boolean which is true if the running version of Perl has \s-1UTF\-8\s0 support
sufficient for our purposes.
.PP
Currently that means \f(CW5.8.3\fR or greater, with the specific requirements
being \f(CW\*(C`use open qw{ :std :encoding(utf\-8) }\*(C'\fR, \f(CW\*(C`/\ep{Mark}/\*(C'\fR, and the
ability to parse things like \f(CW\*(C`qr \eN{U+FFFF}foo\eN{U+FFFF}\*(C'\fR.
.SS "\s-1TOKEN_LITERAL\s0"
.IX Subsection "TOKEN_LITERAL"
The name of the class that represents a literal token. That is,
PPIx::Regexp::Token::Literal.
.SS "\s-1TOKEN_UNKNOWN\s0"
.IX Subsection "TOKEN_UNKNOWN"
The name of the class that represents the unknown token. That is,
PPIx::Regexp::Token::Unknown.
.SH "SUPPORT"
.IX Header "SUPPORT"
Support is by the author. Please file bug reports at
<http://rt.cpan.org>, or in electronic mail to the author.
.SH "AUTHOR"
.IX Header "AUTHOR"
Thomas R. Wyant, \s-1III\s0 \fIwyant at cpan dot org\fR
.SH "COPYRIGHT AND LICENSE"
.IX Header "COPYRIGHT AND LICENSE"
Copyright (C) 2009\-2019 by Thomas R. Wyant, \s-1III\s0
.PP
This program is free software; you can redistribute it and/or modify it
under the same terms as Perl 5.10.0. For more details, see the full text
of the licenses in the directory \s-1LICENSES.\s0
.PP
This program is distributed in the hope that it will be useful, but
without any warranty; without even the implied warranty of
merchantability or fitness for a particular purpose.