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편집 파일: Template::Namespace::Constants.3pm

.\" Automatically generated by Pod::Man 4.14 (Pod::Simple 3.42) .\" .\" Standard preamble: .\" ======================================================================== .de Sp \" Vertical space (when we can't use .PP) .if t .sp .5v .if n .sp .. .de Vb \" Begin verbatim text .ft CW .nf .ne \\$1 .. .de Ve \" End verbatim text .ft R .fi .. .\" Set up some character translations and predefined strings. \*(-- will .\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left .\" double quote, and \*(R" will give a right double quote. \*(C+ will .\" give a nicer C++. Capital omega is used to do unbreakable dashes and .\" therefore won't be available. \*(C` and \*(C' expand to `' in nroff, .\" nothing in troff, for use with C<>. .tr \(*W- .ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p' .ie n \{\ . ds -- \(*W- . ds PI pi . if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch . if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch . ds L" "" . ds R" "" . ds C` "" . ds C' "" 'br\} .el\{\ . ds -- \|\(em\| . ds PI \(*p . ds L" `` . ds R" '' . ds C` . ds C' 'br\} .\" .\" Escape single quotes in literal strings from groff's Unicode transform. .ie \n(.g .ds Aq \(aq .el .ds Aq ' .\" .\" If the F register is >0, we'll generate index entries on stderr for .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index .\" entries marked with X<> in POD. Of course, you'll have to process the .\" output yourself in some meaningful fashion. .\" .\" Avoid warning from groff about undefined register 'F'. .de IX .. .nr rF 0 .if \n(.g .if rF .nr rF 1 .if (\n(rF:(\n(.g==0)) \{\ . if \nF \{\ . de IX . tm Index:\\$1\t\\n%\t"\\$2" .. . if !\nF==2 \{\ . nr % 0 . nr F 2 . \} . \} .\} .rr rF .\" ======================================================================== .\" .IX Title "Template::Namespace::Constants 3" .TH Template::Namespace::Constants 3 "2024-06-21" "perl v5.32.1" "User Contributed Perl Documentation" .\" For nroff, turn off justification. Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH "NAME" Template::Namespace::Constants \- Compile time constant folding .SH "SYNOPSIS" .IX Header "SYNOPSIS" .Vb 2 \& # easy way to define constants \& use Template; \& \& my $tt = Template\->new({ \& CONSTANTS => { \& pi => 3.14, \& e => 2.718, \& }, \& }); \& \& # nitty\-gritty, hands\-dirty way \& use Template::Namespace::Constants; \& \& my $tt = Template\->new({ \& NAMESPACE => { \& constants => Template::Namespace::Constants\->new({ \& pi => 3.14, \& e => 2.718, \& }, \& }, \& }); .Ve .SH "DESCRIPTION" .IX Header "DESCRIPTION" The \f(CW\*(C`Template::Namespace::Constants\*(C'\fR module implements a namespace handler which is plugged into the \f(CW\*(C`Template::Directive\*(C'\fR compiler module. This then performs compile time constant folding of variables in a particular namespace. .SH "METHODS" .IX Header "METHODS" .SS "new(\e%constants)" .IX Subsection "new(%constants)" The \fBnew()\fR constructor method creates and returns a reference to a new Template::Namespace::Constants object. This creates an internal stash to store the constant variable definitions passed as arguments. .PP .Vb 4 \& my $handler = Template::Namespace::Constants\->new({ \& pi => 3.14, \& e => 2.718, \& }); .Ve .SS "ident(\e@ident)" .IX Subsection "ident(@ident)" Method called to resolve a variable identifier into a compiled form. In this case, the method fetches the corresponding constant value from its internal stash and returns it. .SH "AUTHOR" .IX Header "AUTHOR" Andy Wardley <abw@wardley.org> <http://wardley.org/> .SH "COPYRIGHT" .IX Header "COPYRIGHT" Copyright (C) 1996\-2022 Andy Wardley. All Rights Reserved. .PP This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. .SH "SEE ALSO" .IX Header "SEE ALSO" Template::Directive