2007-05-21 03:34:53 +04:00
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#!/usr/bin/perl
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2009-08-19 03:37:05 +04:00
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# Новая версия шаблонного движка VMX::Template!
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2009-12-09 03:09:56 +03:00
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# "Ох уж эти перлисты... что ни пишут - всё Template Toolkit получается!"
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2007-05-21 03:34:53 +04:00
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package VMX::Template;
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use strict;
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use VMX::Common qw(:all);
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2009-03-13 20:47:24 +03:00
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use Digest::MD5 qw(md5_hex);
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2008-08-15 21:31:24 +04:00
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use Hash::Merge;
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2009-12-18 15:22:55 +03:00
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use POSIX;
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2007-05-21 03:34:53 +04:00
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2009-01-06 01:39:48 +03:00
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my $mtimes = {}; # время изменения файлов
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my $uncompiled_code = {}; # нескомпилированный код
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my $compiled_code = {}; # скомпилированный код (sub'ы)
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2009-08-19 03:37:05 +04:00
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my $assigncache = {}; # кэш eval'ов присвоений
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2007-10-28 19:16:50 +03:00
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2009-01-06 01:39:48 +03:00
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# Конструктор
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# $obj = new VMX::Template, %params
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2008-08-15 21:31:24 +04:00
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sub new
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{
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2007-05-21 03:34:53 +04:00
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my $class = shift;
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$class = ref ($class) || $class;
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2008-08-15 21:31:24 +04:00
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my $self =
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{
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2009-12-09 03:09:56 +03:00
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root => '.', # каталог с шаблонами
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reload => 1, # если 0, шаблоны не будут перечитываться с диска, и вызовов stat() происходить не будет
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wrapper => undef, # фильтр, вызываемый перед выдачей результата parse
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tpldata => {}, # сюда будут сохранены: данные
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cache_dir => undef, # необязательный кэш, ускоряющий работу только в случае частых инициализаций интерпретатора
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use_utf8 => undef, # шаблоны в UTF-8 и с флагом UTF-8
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begin_code => '<!--', # начало кода
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end_code => '-->', # конец кода
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begin_subst => '{', # начало подстановки (необязательно)
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end_subst => '}', # конец подстановки (необязательно)
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2009-01-06 01:39:48 +03:00
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@_,
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2007-10-27 23:44:31 +04:00
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};
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2009-03-13 20:47:24 +03:00
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$self->{cache_dir} =~ s!/*$!/!so if $self->{cache_dir};
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2009-01-06 01:39:48 +03:00
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$self->{root} =~ s!/*$!/!so;
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2007-10-27 23:44:31 +04:00
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bless $self, $class;
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2007-05-21 03:34:53 +04:00
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}
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2009-01-06 01:39:48 +03:00
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# Функция задаёт имена файлов для хэндлов
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2009-08-19 03:37:05 +04:00
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# $obj->set_filenames (handle1 => 'template1.tpl', ...)
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2008-08-15 21:31:24 +04:00
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sub set_filenames
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{
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2007-05-21 03:34:53 +04:00
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my $self = shift;
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my %fns = @_;
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2009-01-06 01:39:48 +03:00
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while (my ($k, $v) = each %fns)
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2008-08-15 21:31:24 +04:00
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{
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2009-08-19 03:37:05 +04:00
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$self->{filenames}->{$k} = "$v";
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}
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return 1;
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}
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# Задать код для хэндлов
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# $obj->set_code (handle1 => "{CODE} - Template code", ...);
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sub set_code
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{
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my $self = shift;
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my %codes = @_;
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while (my ($k, $v) = each %codes)
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{
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$self->{filenames}->{$k} = \ $v;
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2007-05-21 03:34:53 +04:00
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}
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return 1;
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}
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2009-01-06 01:39:48 +03:00
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# Функция уничтожает данные шаблона
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# $obj->clear()
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2008-10-16 19:27:36 +04:00
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sub clear
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2008-08-15 21:31:24 +04:00
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{
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2009-08-19 03:37:05 +04:00
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%{ shift->{tpldata} } = ();
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2009-06-29 15:40:21 +04:00
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return 1;
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}
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2009-08-19 03:37:05 +04:00
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# Получить хеш для записи данных
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sub vars
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2009-06-29 15:40:21 +04:00
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{
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my $self = shift;
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2009-08-19 03:37:05 +04:00
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my ($vars) = @_;
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$self->{tpldata} = $vars if $vars;
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return $self->{tpldata};
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2009-06-29 16:15:20 +04:00
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}
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2009-08-19 03:37:05 +04:00
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# Функция выполняет код шаблона, не выводя страницу
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# Нужно, чтобы выполнить все присваивания переменных.
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# $obj->preparse('handle')
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sub preparse
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2009-06-29 16:15:20 +04:00
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{
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my $self = shift;
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2009-08-19 03:37:05 +04:00
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my ($handle) = @_;
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my $fn = $self->{filenames}->{$handle};
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my $textref;
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unless (ref $fn)
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{
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die "[Template] unknown handle '$handle'"
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unless $fn;
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$fn = $self->{root}.$fn
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if $fn !~ m!^/!so;
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die "[Template] couldn't load template file '$fn' for handle '$handle'"
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unless $textref = $self->loadfile($fn);
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}
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else
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{
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$textref = $fn;
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$fn = undef;
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}
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# FIXME возможно, не стоит на это заморачиваться, а просто запускать шаблон дважды
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my $sub = $self->compile($textref, $handle, $fn, 1);
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eval { &$sub($self) };
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die "[Template] error pre-running '$handle': $@" if $@;
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return $self;
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2009-06-27 17:21:50 +04:00
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}
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2009-01-06 01:39:48 +03:00
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# Функция загружает, компилирует и возвращает результат для хэндла
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2009-08-19 03:37:05 +04:00
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# $page = $obj->parse('handle')
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2008-08-15 21:31:24 +04:00
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sub parse
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{
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2007-06-02 02:30:09 +04:00
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my $self = shift;
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2008-10-18 17:56:52 +04:00
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my ($handle) = @_;
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2009-01-06 01:39:48 +03:00
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my $fn = $self->{filenames}->{$handle};
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my $textref;
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unless (ref $fn)
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{
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die "[Template] unknown handle '$handle'"
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unless $fn;
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$fn = $self->{root}.$fn
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if $fn !~ m!^/!so;
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die "[Template] couldn't load template file '$fn' for handle '$handle'"
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unless $textref = $self->loadfile($fn);
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}
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else
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{
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$textref = $fn;
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$fn = undef;
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}
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my $sub = $self->compile($textref, $handle, $fn);
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my $str = eval { &$sub($self) };
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die "[Template] error running '$handle': $@" if $@;
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2009-02-07 16:16:04 +03:00
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&{$self->{wrapper}} ($str) if $self->{wrapper};
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2007-06-02 02:30:09 +04:00
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return $str;
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2007-05-21 03:34:53 +04:00
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}
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2009-01-06 01:39:48 +03:00
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# Функция загружает файл с кэшированием
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# $textref = $obj->loadfile($file)
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sub loadfile
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{
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2009-02-01 19:37:33 +03:00
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my $self = shift;
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2009-01-06 01:39:48 +03:00
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my ($fn) = @_;
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my $load = 0;
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my $mtime;
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if (!$uncompiled_code->{$fn} || $self->{reload})
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{
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$mtime = [ stat($fn) ] -> [ 9 ];
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$load = 1 if !$uncompiled_code->{$fn} || $mtime > $mtimes->{$fn};
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}
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if ($load)
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{
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# если файл изменился - перезасасываем
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my ($fd, $text);
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if (open $fd, "<", $fn)
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{
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local $/ = undef;
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$text = <$fd>;
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close $fd;
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}
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else
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{
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return undef;
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}
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# удаляем старый скомпилированный код
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delete $compiled_code->{$uncompiled_code->{$fn}}
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if $uncompiled_code->{$fn};
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$uncompiled_code->{$fn} = \$text;
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$mtimes->{$fn} = $mtime;
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}
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return $uncompiled_code->{$fn};
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}
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# Функция присваивает переменные блока в новую итерацию
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# $obj->assign_block_vars ($block, varname1 => value1, varname2 => value2, ...)
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2009-02-01 19:37:33 +03:00
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# Так тоже можно (при этом избежим лишнего копирования хеша!):
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# $obj->assign_block_vars ($block, { varname1 => value1, varname2 => value2, ... })
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2008-08-15 21:31:24 +04:00
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sub assign_block_vars
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{
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2007-05-21 03:34:53 +04:00
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my $self = shift;
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my $block = shift;
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2009-02-01 19:37:33 +03:00
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my $vararray;
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if (@_ > 1)
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{
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# копирование хеша, да...
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$vararray = { @_ };
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}
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else
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{
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# а так можно и не копировать
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($vararray) = @_;
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}
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2008-03-03 14:29:35 +03:00
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$block =~ s/^\.+//so;
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$block =~ s/\.+$//so;
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2008-08-15 21:31:24 +04:00
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if (!$block)
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{
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# если не блок, а корневой уровень
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2009-02-01 19:37:33 +03:00
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$self->assign_vars($vararray);
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2008-08-15 21:31:24 +04:00
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}
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2009-02-01 19:37:33 +03:00
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elsif ($block !~ /\.[^\.]/so)
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2008-08-15 21:31:24 +04:00
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{
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# если блок, но не вложенный
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2009-02-01 19:37:33 +03:00
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$block =~ s/\.*$/./so; # добавляем . в конец, если надо
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$self->{tpldata}->{$block} ||= [];
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2009-01-06 01:39:48 +03:00
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push @{$self->{tpldata}->{$block}}, $vararray;
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2008-08-15 21:31:24 +04:00
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}
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else
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{
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# если вложенный блок
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2009-02-01 19:37:33 +03:00
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my $ev;
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$block =~ s/\.+$//so; # обрезаем точки в конце (хоть их 10 там)
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2009-08-19 03:37:05 +04:00
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unless ($ev = $assigncache->{"=$block"})
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2008-08-15 21:31:24 +04:00
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{
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2009-02-01 19:37:33 +03:00
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$ev = '$_[0]';
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my @blocks = split /\./, $block;
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my $lastblock = pop @blocks;
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foreach (@blocks)
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{
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2009-08-19 03:37:05 +04:00
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$ev .= "{'$_'}";
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2009-02-01 19:37:33 +03:00
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$ev .= "[\$\#\{$ev\}]";
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}
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2009-08-19 03:37:05 +04:00
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$ev .= "{'$lastblock'}";
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2009-02-01 23:01:45 +03:00
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$ev = "return sub { $ev ||= []; push \@\{$ev\}, \$_[1]; }";
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2009-08-19 03:37:05 +04:00
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$ev = $assigncache->{"=$block"} = eval $ev;
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2007-05-21 03:34:53 +04:00
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}
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2009-02-01 19:37:33 +03:00
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&$ev($self->{tpldata}, $vararray);
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2007-05-21 03:34:53 +04:00
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}
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return 1;
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}
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2009-01-06 01:39:48 +03:00
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# Функция добавляет переменные к текущей итерации блока
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# $obj->append_block_vars ($block, varname1 => value1, varname2 => value2, ...)
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2008-08-15 21:31:24 +04:00
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sub append_block_vars
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{
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2007-05-21 03:34:53 +04:00
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my $self = shift;
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my $block = shift;
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my %vararray = @_;
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my $lastit;
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2008-08-15 21:31:24 +04:00
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if (!$block || $block eq '.')
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{
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# если не блок, а корневой уровень
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2009-02-01 19:37:33 +03:00
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$self->assign_vars(@_);
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2008-08-15 21:31:24 +04:00
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}
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2009-02-01 19:37:33 +03:00
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elsif ($block !~ /\../so)
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2008-08-15 21:31:24 +04:00
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{
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# если блок, но не вложенный
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2009-02-01 19:37:33 +03:00
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$block =~ s/\.*$/./so; # добавляем . в конец, если надо
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2009-01-06 01:39:48 +03:00
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$self->{tpldata}{$block} ||= [];
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2009-02-01 19:37:33 +03:00
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$lastit = $#{$self->{tpldata}{$block}};
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2008-12-27 02:40:58 +03:00
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$lastit = 0 if $lastit < 0;
|
2009-01-06 01:39:48 +03:00
|
|
|
|
$self->{tpldata}{$block}[$lastit]{$_} = $vararray{$_}
|
2009-02-01 19:37:33 +03:00
|
|
|
|
for keys %vararray;
|
2008-08-15 21:31:24 +04:00
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
# если вложенный блок
|
2009-02-01 19:37:33 +03:00
|
|
|
|
my $ev;
|
|
|
|
|
$block =~ s/\.+$//so; # обрезаем точки в конце (хоть их 10 там)
|
2009-08-19 03:37:05 +04:00
|
|
|
|
unless ($ev = $assigncache->{"+$block"})
|
2008-08-15 21:31:24 +04:00
|
|
|
|
{
|
2009-02-01 19:37:33 +03:00
|
|
|
|
$ev = '$_[0]';
|
|
|
|
|
my @blocks = split /\.+/, $block;
|
|
|
|
|
foreach (@blocks)
|
|
|
|
|
{
|
2009-08-19 03:37:05 +04:00
|
|
|
|
$ev .= "{'$_'}";
|
2009-02-01 19:37:33 +03:00
|
|
|
|
$ev .= "[\$#\{$ev\}]";
|
|
|
|
|
}
|
2009-02-01 23:01:45 +03:00
|
|
|
|
$ev = 'return sub { for my $k (keys %{$_[1]}) { '.$ev.'{$k} = $_[1]->{$k}; } }';
|
2009-08-19 03:37:05 +04:00
|
|
|
|
$ev = $assigncache->{"+$block"} = eval $ev;
|
2007-05-21 03:34:53 +04:00
|
|
|
|
}
|
2009-02-01 19:37:33 +03:00
|
|
|
|
&$ev($self->{tpldata}, \%vararray);
|
2007-05-21 03:34:53 +04:00
|
|
|
|
}
|
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
2009-01-06 01:39:48 +03:00
|
|
|
|
# Функция присваивает переменные корневого уровня
|
|
|
|
|
# $obj->assign_vars (varname1 => value1, varname2 => value2, ...)
|
2008-08-15 21:31:24 +04:00
|
|
|
|
sub assign_vars
|
|
|
|
|
{
|
2007-05-21 03:34:53 +04:00
|
|
|
|
my $self = shift;
|
2009-08-19 03:37:05 +04:00
|
|
|
|
my $h;
|
|
|
|
|
if (@_ > 1 || !ref $_[0])
|
2009-02-01 19:37:33 +03:00
|
|
|
|
{
|
2009-08-19 03:37:05 +04:00
|
|
|
|
$h = { @_ };
|
2009-02-01 19:37:33 +03:00
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
2009-08-19 03:37:05 +04:00
|
|
|
|
$h = $_[0];
|
2009-02-01 19:37:33 +03:00
|
|
|
|
}
|
2009-08-19 03:37:05 +04:00
|
|
|
|
$self->{tpldata} ||= {};
|
|
|
|
|
$self->{tpldata}->{$_} = $h->{$_} for keys %$h;
|
2007-05-21 03:34:53 +04:00
|
|
|
|
return 1;
|
|
|
|
|
}
|
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
# Функция компилирует код.
|
|
|
|
|
# Если $nout - истина, то не выводить страницу, а обрабатывать только <!-- SET --> и т.п.
|
|
|
|
|
# FIXME Если бы ещё убрать необходимость двойной компиляции для $nout=0 и $nout=1.
|
|
|
|
|
# $sub = $self->compile(\$code, $handle, $fn, $nout);
|
2009-01-06 01:39:48 +03:00
|
|
|
|
# print &$sub($self);
|
2008-08-15 21:31:24 +04:00
|
|
|
|
sub compile
|
|
|
|
|
{
|
2007-10-28 19:16:50 +03:00
|
|
|
|
my $self = shift;
|
2009-08-19 03:37:05 +04:00
|
|
|
|
my ($coderef, $handle, $fn, $nout) = @_;
|
|
|
|
|
$nout = $nout ? 1 : 0;
|
|
|
|
|
return $compiled_code->{$nout.$coderef} if $compiled_code->{$nout.$coderef};
|
|
|
|
|
|
|
|
|
|
# кэширование на диске
|
2009-03-13 20:47:24 +03:00
|
|
|
|
my $h;
|
|
|
|
|
if ($self->{cache_dir})
|
|
|
|
|
{
|
2009-08-19 03:37:05 +04:00
|
|
|
|
$h = $self->{cache_dir}.$nout.md5_hex($$coderef).'.pl';
|
2009-03-13 20:47:24 +03:00
|
|
|
|
if (-e $h)
|
|
|
|
|
{
|
2009-08-19 03:37:05 +04:00
|
|
|
|
$compiled_code->{$nout.$coderef} = do $h;
|
2009-03-13 20:47:24 +03:00
|
|
|
|
if ($@)
|
|
|
|
|
{
|
|
|
|
|
warn "[Template] error compiling '$handle': [$@] in FILE: $h";
|
|
|
|
|
unlink $h;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
2009-08-19 03:37:05 +04:00
|
|
|
|
return $compiled_code->{$nout.$coderef};
|
2009-03-13 20:47:24 +03:00
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
2007-05-21 03:34:53 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
# прописываем путь к текущему шаблону в переменную
|
2008-08-15 21:31:24 +04:00
|
|
|
|
$self->{cur_template_path} = $self->{cur_template} = '';
|
2009-01-06 01:39:48 +03:00
|
|
|
|
if ($fn)
|
2008-08-15 21:31:24 +04:00
|
|
|
|
{
|
2009-01-06 01:39:48 +03:00
|
|
|
|
$self->{cur_template} = $fn;
|
2009-08-19 03:37:05 +04:00
|
|
|
|
$self->{cur_template} = substr $self->{cur_template}, length $self->{root}
|
|
|
|
|
if substr($self->{cur_template}, 0, length $self->{root}) eq $self->{root};
|
2008-08-15 21:31:24 +04:00
|
|
|
|
$self->{cur_template} =~ s/\.[^\.]+$//iso;
|
|
|
|
|
$self->{cur_template} =~ s/:+//gso;
|
|
|
|
|
$self->{cur_template} =~ s!/+!:!gso;
|
|
|
|
|
$self->{cur_template} =~ s/[^\w_:]+//gso;
|
2009-01-06 01:39:48 +03:00
|
|
|
|
$self->{cur_template_path} = '->{"' . join('"}->{"',
|
|
|
|
|
map { lc } split /:/, $self->{cur_template}) . '"}';
|
2008-08-15 21:31:24 +04:00
|
|
|
|
}
|
|
|
|
|
|
2009-01-06 01:39:48 +03:00
|
|
|
|
my $code = $$coderef;
|
2009-02-23 22:33:41 +03:00
|
|
|
|
Encode::_utf8_on($code) if $self->{use_utf8};
|
2009-01-25 19:56:18 +03:00
|
|
|
|
|
2009-12-09 03:09:56 +03:00
|
|
|
|
# начала/концы спецстрок
|
|
|
|
|
my $bc = $self->{begin_code} || '<!--';
|
|
|
|
|
my $ec = $self->{end_code} || '-->';
|
|
|
|
|
my $bs = $self->{end_subst} && $self->{begin_subst} || undef;
|
|
|
|
|
my $es = $self->{begin_subst} && $self->{end_subst} || undef;
|
|
|
|
|
|
|
|
|
|
# удаляем комментарии <!--# ... -->
|
|
|
|
|
$code =~ s/\s*\Q$bc\E#.*?\Q$ec\E//gos;
|
|
|
|
|
$code =~ s/(?:^|\n)[ \t\r]*(\Q$bc\E\s*[a-z]+(\s+.*)?\Q$ec\E)/$1/giso;
|
2008-02-13 18:10:23 +03:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
$self->{blocks} = [];
|
|
|
|
|
$self->{in} = [];
|
|
|
|
|
$self->{included} = {};
|
|
|
|
|
# вне <!-- SET --> при $nout=1 $t.= не делается
|
|
|
|
|
# за это отвечают также соотв. if'ы в compile_code_fragment
|
|
|
|
|
$self->{nout} = $nout;
|
|
|
|
|
$self->{in_set} = 0;
|
|
|
|
|
|
|
|
|
|
my $r = '';
|
|
|
|
|
my ($p, $c, $t);
|
|
|
|
|
my $pp = 0;
|
|
|
|
|
my $in;
|
|
|
|
|
|
2009-12-09 03:09:56 +03:00
|
|
|
|
# регулярное выражения для поиска фрагментов кода
|
|
|
|
|
my $re = '\Q' . $bc . '\E(.*?)\Q' . $ec . '\E';
|
|
|
|
|
$re .= '|\Q' . $bs . '\E(.*?)\Q' . $es . '\E' if $bs;
|
|
|
|
|
$re = qr/$re/s;
|
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
# ищем фрагменты кода
|
|
|
|
|
$code =~ /^/gcso;
|
2009-12-09 03:09:56 +03:00
|
|
|
|
while ($code =~ /$re/gcso)
|
2009-08-19 03:37:05 +04:00
|
|
|
|
{
|
|
|
|
|
$in = $self->{in_set};
|
2009-12-09 03:09:56 +03:00
|
|
|
|
$c = $2 ? $self->compile_substitution($2) : $self->compile_code_fragment($1);
|
2009-08-19 03:37:05 +04:00
|
|
|
|
next unless $c;
|
|
|
|
|
if (($t = pos($code) - $pp - length $&) > 0)
|
2009-08-13 03:00:28 +04:00
|
|
|
|
{
|
2009-08-19 03:37:05 +04:00
|
|
|
|
$p = substr $code, $pp, $t;
|
|
|
|
|
$p =~ s/\\|\'/\\$&/gso;
|
|
|
|
|
$r .= "\$t.='$p';\n" if !$nout || $in;
|
2007-05-21 03:34:53 +04:00
|
|
|
|
}
|
2009-08-19 03:37:05 +04:00
|
|
|
|
$r .= $c if $c;
|
|
|
|
|
$pp = pos $code;
|
|
|
|
|
}
|
|
|
|
|
if ($pp < length($code))
|
|
|
|
|
{
|
|
|
|
|
$p = substr $code, $pp;
|
|
|
|
|
$p =~ s/\\|\'/\\$&/gso;
|
|
|
|
|
$r .= "\$t.='$p';\n" if !$nout || $self->{in_set};
|
2007-05-21 03:34:53 +04:00
|
|
|
|
}
|
2009-02-01 19:37:33 +03:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
# дописываем начало и конец кода
|
2009-01-06 01:39:48 +03:00
|
|
|
|
$code = ($self->{use_utf8} ? "\nuse utf8;\n" : "").
|
|
|
|
|
'sub {
|
|
|
|
|
my $self = shift;
|
|
|
|
|
my $t = "";
|
|
|
|
|
my $_current_template = [ split /:/, \'' . $self->{cur_template} . '\' ];
|
2009-08-19 03:37:05 +04:00
|
|
|
|
' . $r . '
|
2009-01-06 01:39:48 +03:00
|
|
|
|
return $t;
|
|
|
|
|
}';
|
2009-08-19 03:37:05 +04:00
|
|
|
|
undef $r;
|
|
|
|
|
|
|
|
|
|
# кэшируем код на диск
|
2009-03-13 20:47:24 +03:00
|
|
|
|
if ($h)
|
|
|
|
|
{
|
|
|
|
|
my $fd;
|
|
|
|
|
if (open $fd, ">$h")
|
|
|
|
|
{
|
2009-08-19 03:37:05 +04:00
|
|
|
|
no warnings 'utf8';
|
2009-03-13 20:47:24 +03:00
|
|
|
|
print $fd $code;
|
|
|
|
|
close $fd;
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
warn "[Template] error caching '$handle': $! while opening $h";
|
|
|
|
|
}
|
|
|
|
|
}
|
2009-01-06 01:39:48 +03:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
# компилируем код
|
|
|
|
|
$compiled_code->{$nout.$coderef} = eval $code;
|
2009-01-06 01:39:48 +03:00
|
|
|
|
die "[Template] error compiling '$handle': [$@] in CODE:\n$code" if $@;
|
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
# возвращаем ссылку на процедуру
|
|
|
|
|
return $compiled_code->{$nout.$coderef};
|
2007-05-21 03:34:53 +04:00
|
|
|
|
}
|
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
# компиляция фрагмента кода <!-- ... -->. это может быть:
|
|
|
|
|
# 1) [ELSE] IF выражение
|
|
|
|
|
# 2) BEGIN имя блока
|
|
|
|
|
# 3) END [имя блока]
|
|
|
|
|
# 4) SET переменная
|
|
|
|
|
# 5) SET переменная = выражение
|
|
|
|
|
# 6) INCLUDE имя_файла_шаблона
|
|
|
|
|
# 7) выражение
|
|
|
|
|
sub compile_code_fragment
|
2008-08-15 21:31:24 +04:00
|
|
|
|
{
|
2008-02-13 18:10:23 +03:00
|
|
|
|
my $self = shift;
|
2009-08-19 03:37:05 +04:00
|
|
|
|
my ($e) = @_;
|
|
|
|
|
my $t;
|
|
|
|
|
$e =~ s/^\s+//so;
|
|
|
|
|
$e =~ s/\s+$//so;
|
2009-09-02 02:15:35 +04:00
|
|
|
|
if ($e =~ /^(ELS(?:E\s*)?)?IF(!?)\s*/iso)
|
2009-08-19 03:37:05 +04:00
|
|
|
|
{
|
|
|
|
|
$t = $';
|
|
|
|
|
if ($2)
|
|
|
|
|
{
|
|
|
|
|
warn "Legacy IF! used, consider changing it to IF NOT";
|
|
|
|
|
$t = "NOT $t";
|
|
|
|
|
}
|
|
|
|
|
$t = $self->compile_expression($t);
|
|
|
|
|
unless ($t)
|
|
|
|
|
{
|
|
|
|
|
warn "Invalid expression: ($t)";
|
|
|
|
|
return undef;
|
|
|
|
|
}
|
|
|
|
|
push @{$self->{in}}, [ 'if' ] unless $1;
|
|
|
|
|
return $1 ? "} elsif ($t) {\n" : "if ($t) {\n";
|
2008-08-15 21:31:24 +04:00
|
|
|
|
}
|
2009-08-23 15:28:24 +04:00
|
|
|
|
elsif ($e =~ /^ELSE\s*$/iso)
|
|
|
|
|
{
|
|
|
|
|
return "} else {";
|
|
|
|
|
}
|
2009-08-19 03:37:05 +04:00
|
|
|
|
elsif ($e =~ /^BEGIN\s+([a-z_][a-z0-9_]*)(?:\s+AT\s+(.+))?(?:\s+BY\s+(.+))?(?:\s+TO\s+(.+))?$/iso)
|
2008-08-15 21:31:24 +04:00
|
|
|
|
{
|
2009-08-19 03:37:05 +04:00
|
|
|
|
my $ref = $self->varref([@{$self->{blocks}}, $1]);
|
|
|
|
|
my $at = 0;
|
|
|
|
|
if ($2)
|
|
|
|
|
{
|
|
|
|
|
$at = $self->compile_expression($2);
|
|
|
|
|
unless ($at)
|
|
|
|
|
{
|
|
|
|
|
warn "Invalid expression: ($2) in AT";
|
|
|
|
|
return undef;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
my $by = '++';
|
|
|
|
|
if ($3)
|
|
|
|
|
{
|
|
|
|
|
$by = $self->compile_expression($3);
|
|
|
|
|
unless ($by)
|
|
|
|
|
{
|
|
|
|
|
warn "Invalid expression: ($3) in BY";
|
|
|
|
|
return undef;
|
|
|
|
|
}
|
|
|
|
|
$by = '+=' . $by;
|
|
|
|
|
}
|
|
|
|
|
my $to = '';
|
|
|
|
|
if ($4)
|
|
|
|
|
{
|
|
|
|
|
$to = $self->compile_expression($4);
|
|
|
|
|
unless ($to)
|
|
|
|
|
{
|
|
|
|
|
warn "Invalid expression: ($4) in TO";
|
|
|
|
|
return undef;
|
|
|
|
|
}
|
|
|
|
|
$to = "\$blk_${1}_count = $to if $to < \$blk_${1}_count;";
|
|
|
|
|
}
|
|
|
|
|
push @{$self->{blocks}}, $1;
|
|
|
|
|
push @{$self->{in}}, [ 'begin', $1 ];
|
|
|
|
|
return <<EOF;
|
|
|
|
|
my \$blk_${1}_count = ref($ref) && $ref =~ /ARRAY/so ? scalar \@{$ref} : $ref ? 1 : 0;
|
|
|
|
|
${to}
|
|
|
|
|
for (my \$blk_${1}_i = $at; \$blk_${1}_i < \$blk_${1}_count; \$blk_${1}_i $by) {
|
|
|
|
|
my \$blk_${1}_vars = ref($ref) && $ref =~ /ARRAY/so ? $ref ->[\$blk_${1}_i] : $ref;
|
|
|
|
|
EOF
|
|
|
|
|
}
|
|
|
|
|
elsif ($e =~ /^END(?:\s+([a-z_][a-z0-9_]*))?$/iso)
|
|
|
|
|
{
|
|
|
|
|
unless (@{$self->{in}})
|
|
|
|
|
{
|
|
|
|
|
warn "$& without BEGIN, IF or SET";
|
|
|
|
|
return undef;
|
|
|
|
|
}
|
|
|
|
|
my $l = $self->{in}->[$#{$self->{in}}];
|
|
|
|
|
if ($1 && ($l->[0] ne 'begin' || !$l->[1] || $l->[1] ne $1) ||
|
|
|
|
|
!$1 && $l->[0] eq 'begin' && $l->[1])
|
|
|
|
|
{
|
|
|
|
|
warn "$& after ".uc($l->[0])." $l->[1]";
|
|
|
|
|
return undef;
|
|
|
|
|
}
|
|
|
|
|
$self->{in_set}-- if $l->[0] eq 'set';
|
|
|
|
|
pop @{$self->{in}};
|
|
|
|
|
pop @{$self->{blocks}} if $1;
|
|
|
|
|
return $l->[0] eq 'set' ? "return \$t;\n};\n" : "} # $&\n";
|
2008-08-15 21:31:24 +04:00
|
|
|
|
}
|
2009-08-19 03:37:05 +04:00
|
|
|
|
elsif ($e =~ /^SET\s+((?:[a-z0-9_]+\.)*[a-z0-9_]+)(\s*=\s*)?/iso)
|
2008-08-15 21:31:24 +04:00
|
|
|
|
{
|
2009-08-19 03:37:05 +04:00
|
|
|
|
if ($2)
|
|
|
|
|
{
|
|
|
|
|
$t = $self->compile_expression($');
|
|
|
|
|
unless ($t)
|
|
|
|
|
{
|
|
|
|
|
warn "Invalid expression: ($')";
|
|
|
|
|
return undef;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
push @{$self->{in}}, [ 'set', $1 ];
|
|
|
|
|
$self->{in_set}++;
|
|
|
|
|
return $self->varref($1) . ' = ' . ($t || 'eval { my $t = ""') . ";\n";
|
2008-08-15 21:31:24 +04:00
|
|
|
|
}
|
2009-08-19 03:37:05 +04:00
|
|
|
|
elsif ($e =~ /^INCLUDE\s+(\S+)$/iso)
|
2008-08-15 21:31:24 +04:00
|
|
|
|
{
|
2009-08-19 03:37:05 +04:00
|
|
|
|
my $n = $1;
|
|
|
|
|
my $p = $self->{nout} && !$self->{in_set} ? "preparse" : "parse";
|
|
|
|
|
$n =~ s/\'|\\/\\$&/gso;
|
|
|
|
|
$t = "\$t .= \$self->$p('_INCLUDE$n');\n";
|
|
|
|
|
unless ($self->{included}->{$n})
|
|
|
|
|
{
|
|
|
|
|
$t = "\$self->set_filenames('_INCLUDE$n' => '$n');\n$t";
|
|
|
|
|
$self->{included}->{$n} = 1;
|
|
|
|
|
}
|
|
|
|
|
return $t;
|
2008-08-15 21:31:24 +04:00
|
|
|
|
}
|
2009-08-19 03:37:05 +04:00
|
|
|
|
else
|
2008-08-15 21:31:24 +04:00
|
|
|
|
{
|
2009-08-19 03:37:05 +04:00
|
|
|
|
$t = $self->compile_expression($e);
|
|
|
|
|
return "\$t .= $t;\n" if $t && (!$self->{nout} || $self->{in_set});
|
2008-02-13 18:10:23 +03:00
|
|
|
|
}
|
2009-08-19 03:37:05 +04:00
|
|
|
|
return undef;
|
2008-02-13 18:10:23 +03:00
|
|
|
|
}
|
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
# компиляция подстановки переменной {...} это просто выражение
|
|
|
|
|
sub compile_substitution
|
2008-08-15 21:31:24 +04:00
|
|
|
|
{
|
2007-05-21 03:34:53 +04:00
|
|
|
|
my $self = shift;
|
2009-08-19 03:37:05 +04:00
|
|
|
|
my ($e) = @_;
|
|
|
|
|
$e = $self->compile_expression($e);
|
|
|
|
|
return undef unless $e;
|
|
|
|
|
return "\$t .= $e;\n" if !$self->{nout} || $self->{in_set};
|
|
|
|
|
}
|
2009-08-13 03:00:28 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
# компиляция выражения. это может быть:
|
|
|
|
|
# 1) "строковой литерал"
|
|
|
|
|
# 2) 123.123 или 0123 или 0x123
|
|
|
|
|
# 3) переменная
|
|
|
|
|
# 4) функция(выражение,выражение,...,выражение)
|
|
|
|
|
# 5) функция выражение
|
|
|
|
|
# 6) для legacy mode: переменная/имя_функции
|
|
|
|
|
sub compile_expression
|
|
|
|
|
{
|
|
|
|
|
my $self = shift;
|
|
|
|
|
my ($e, $after) = @_;
|
|
|
|
|
$after = undef if $after && ref $after ne 'SCALAR';
|
|
|
|
|
$$after = '' if $after;
|
|
|
|
|
$e =~ s/^\s+//so;
|
|
|
|
|
$e =~ s/\s+$//so unless $after;
|
|
|
|
|
# строковой или числовой литерал
|
|
|
|
|
if ($e =~ /^((\")(?:[^\"\\]+|\\.)*\"|\'(?:[^\'\\]+|\\.)*\'|-?[1-9]\d*(\.\d+)?|-?0\d*|-?0x\d+)\s*/iso)
|
|
|
|
|
{
|
|
|
|
|
if ($')
|
|
|
|
|
{
|
|
|
|
|
return undef unless $after;
|
|
|
|
|
$$after = $';
|
|
|
|
|
}
|
|
|
|
|
$e = $1;
|
|
|
|
|
$e =~ s/[\$\@\%]/\\$&/gso if $2;
|
|
|
|
|
return $e;
|
|
|
|
|
}
|
|
|
|
|
# функция нескольких аргументов
|
|
|
|
|
elsif ($e =~ /^([a-z_][a-z0-9_]*)\s*\(/iso)
|
2009-06-27 17:45:22 +04:00
|
|
|
|
{
|
2009-08-19 03:37:05 +04:00
|
|
|
|
my $f = lc $1;
|
|
|
|
|
unless ($self->can("function_$f"))
|
|
|
|
|
{
|
|
|
|
|
warn "Unknown function: '$f'";
|
|
|
|
|
return undef;
|
|
|
|
|
}
|
|
|
|
|
my $a = $';
|
|
|
|
|
my @a;
|
|
|
|
|
while ($e = $self->compile_expression($a, \$a))
|
|
|
|
|
{
|
|
|
|
|
push @a, $e;
|
|
|
|
|
if ($a =~ /^\s*\)/so)
|
|
|
|
|
{
|
|
|
|
|
last;
|
|
|
|
|
}
|
|
|
|
|
elsif ($a !~ s/^\s*,//so)
|
|
|
|
|
{
|
|
|
|
|
warn "Unexpected token: '$a' in $f() parameter list";
|
|
|
|
|
return undef;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
if ($a !~ s/^\s*\)\s*//so)
|
|
|
|
|
{
|
|
|
|
|
warn "Unexpected token: '$a' in the end of $f() parameter list";
|
|
|
|
|
return undef;
|
|
|
|
|
}
|
|
|
|
|
if ($a)
|
|
|
|
|
{
|
|
|
|
|
return undef unless $after;
|
|
|
|
|
$$after = $a;
|
|
|
|
|
}
|
|
|
|
|
$f = "function_$f";
|
|
|
|
|
return $self->$f(@a);
|
2009-01-06 01:39:48 +03:00
|
|
|
|
}
|
2009-08-19 03:37:05 +04:00
|
|
|
|
# функция одного аргумента
|
|
|
|
|
elsif ($e =~ /^([a-z_][a-z0-9_]*)\s+(?=\S)/iso)
|
2008-09-02 00:19:55 +04:00
|
|
|
|
{
|
2009-08-19 03:37:05 +04:00
|
|
|
|
my $f = lc $1;
|
|
|
|
|
unless ($self->can("function_$f"))
|
|
|
|
|
{
|
|
|
|
|
warn "Unknown function: '$f'";
|
|
|
|
|
return undef;
|
|
|
|
|
}
|
|
|
|
|
my $a = $';
|
|
|
|
|
my $arg = $self->compile_expression($a, \$a);
|
|
|
|
|
unless ($arg)
|
|
|
|
|
{
|
|
|
|
|
warn "Invalid expression: ($e)";
|
|
|
|
|
return undef;
|
|
|
|
|
}
|
|
|
|
|
$a =~ s/^\s*//so;
|
|
|
|
|
if ($a)
|
|
|
|
|
{
|
|
|
|
|
return undef unless $after;
|
|
|
|
|
$$after = $a;
|
|
|
|
|
}
|
|
|
|
|
$f = "function_$f";
|
|
|
|
|
return $self->$f($arg);
|
2009-06-27 17:45:22 +04:00
|
|
|
|
}
|
2009-08-19 03:37:05 +04:00
|
|
|
|
# переменная плюс legacy-mode переменная/функция
|
|
|
|
|
elsif ($e =~ /^((?:[a-z0-9_]+\.)*(?:[a-z0-9_]+|\#))(?:\/([a-z]+))?\s*/iso)
|
2009-06-27 17:45:22 +04:00
|
|
|
|
{
|
2009-08-19 03:37:05 +04:00
|
|
|
|
if ($')
|
2009-07-02 16:48:02 +04:00
|
|
|
|
{
|
2009-08-19 03:37:05 +04:00
|
|
|
|
return undef unless $after;
|
|
|
|
|
$$after = $';
|
|
|
|
|
}
|
|
|
|
|
$e = $self->varref($1);
|
|
|
|
|
if ($2)
|
|
|
|
|
{
|
|
|
|
|
my $f = lc $2;
|
|
|
|
|
unless ($self->can("function_$f"))
|
2009-08-13 03:00:28 +04:00
|
|
|
|
{
|
2009-08-19 03:37:05 +04:00
|
|
|
|
warn "Unknown function: '$f' called in legacy mode ($&)";
|
|
|
|
|
return undef;
|
2008-09-02 00:19:55 +04:00
|
|
|
|
}
|
2009-08-19 03:37:05 +04:00
|
|
|
|
$f = "function_$f";
|
|
|
|
|
$e = $self->$f($e);
|
2008-09-02 00:19:55 +04:00
|
|
|
|
}
|
2009-08-19 03:37:05 +04:00
|
|
|
|
return $e;
|
2009-06-27 17:20:21 +04:00
|
|
|
|
}
|
2009-08-19 03:37:05 +04:00
|
|
|
|
return undef;
|
|
|
|
|
}
|
2007-05-21 03:34:53 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
# генерация ссылки на переменную
|
|
|
|
|
sub varref
|
|
|
|
|
{
|
|
|
|
|
my $self = shift;
|
|
|
|
|
return "" unless $_[0];
|
|
|
|
|
my @e = ref $_[0] ? @{$_[0]} : split /\.+/, $_[0];
|
|
|
|
|
$self->{last_varref_path} = join '.', @e;
|
|
|
|
|
my $t = '$self->{tpldata}';
|
|
|
|
|
EQBLOCK: {
|
|
|
|
|
if (@{$self->{blocks}})
|
|
|
|
|
{
|
|
|
|
|
for (0..$#{$self->{blocks}})
|
|
|
|
|
{
|
|
|
|
|
last EQBLOCK unless $self->{blocks}->[$_] eq $e[$_];
|
|
|
|
|
}
|
|
|
|
|
splice @e, 0, @{$self->{blocks}};
|
|
|
|
|
if (@e == 1 && $e[0] eq '#')
|
|
|
|
|
{
|
|
|
|
|
# номер итерации блока
|
|
|
|
|
@e = ();
|
|
|
|
|
$t = '$blk_'.$self->{blocks}->[$#{$self->{blocks}}].'_i';
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
# локальная переменная
|
|
|
|
|
$t = '$blk_'.$self->{blocks}->[$#{$self->{blocks}}].'_vars';
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
for (@e)
|
2009-06-27 17:46:44 +04:00
|
|
|
|
{
|
2009-08-19 03:37:05 +04:00
|
|
|
|
if (/^\d+$/so)
|
2009-06-27 17:46:44 +04:00
|
|
|
|
{
|
2009-08-19 03:37:05 +04:00
|
|
|
|
$t .= "->[$_]";
|
2009-06-27 17:46:44 +04:00
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
{
|
2009-08-19 03:37:05 +04:00
|
|
|
|
s/\'|\\/\\$&/gso;
|
|
|
|
|
$t .= "->{'$_'}";
|
2009-06-27 17:46:44 +04:00
|
|
|
|
}
|
|
|
|
|
}
|
2009-08-19 03:37:05 +04:00
|
|
|
|
return $t;
|
|
|
|
|
}
|
2008-08-15 21:31:24 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
# операция над аргументами
|
|
|
|
|
sub fmop
|
|
|
|
|
{
|
|
|
|
|
my $op = shift;
|
|
|
|
|
shift; # my $self = shift;
|
|
|
|
|
return "((" . join(") $op (", @_) . "))";
|
2007-05-21 03:34:53 +04:00
|
|
|
|
}
|
|
|
|
|
|
2009-12-18 15:22:55 +03:00
|
|
|
|
# вызов функции с аргументами и раскрытием массивов
|
|
|
|
|
sub fearr
|
|
|
|
|
{
|
|
|
|
|
my $f = shift;
|
|
|
|
|
my $self = shift;
|
|
|
|
|
my $e = shift;
|
|
|
|
|
$e = "$f($e";
|
|
|
|
|
$e .= ", ref($_) eq 'ARRAY' ? \@{$_} : ($_)" for @_;
|
|
|
|
|
$e .= ")";
|
|
|
|
|
return $e;
|
|
|
|
|
}
|
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
# функции
|
|
|
|
|
sub function_or { fmop('||', @_) }
|
|
|
|
|
sub function_and { fmop('&&', @_) }
|
|
|
|
|
sub function_add { fmop('+', @_) }
|
|
|
|
|
sub function_sub { fmop('-', @_) }
|
|
|
|
|
sub function_mul { fmop('*', @_) }
|
|
|
|
|
sub function_div { fmop('/', @_) }
|
|
|
|
|
sub function_concat { fmop('.', @_) }
|
|
|
|
|
sub function_count { "ref($_[1]) && $_[1] =~ /ARRAY/so ? scalar(\@{ $_[1] }) : 0" }
|
|
|
|
|
sub function_not { "!($_[1])" }
|
|
|
|
|
sub function_even { "!(($_[1]) & 1)" }
|
|
|
|
|
sub function_odd { "(($_[1]) & 1)" }
|
|
|
|
|
sub function_int { "int($_[1])" }
|
|
|
|
|
sub function_eq { "(($_[1]) == ($_[2]))" }
|
|
|
|
|
sub function_gt { "(($_[1]) > ($_[2]))" }
|
|
|
|
|
sub function_lt { "(($_[1]) < ($_[2]))" }
|
|
|
|
|
sub function_ge { "(($_[1]) >= ($_[2]))" }
|
|
|
|
|
sub function_le { "(($_[1]) <= ($_[2]))" }
|
|
|
|
|
sub function_seq { "(($_[1]) eq ($_[2]))" }
|
|
|
|
|
sub function_sgt { "(($_[1]) gt ($_[2]))" }
|
|
|
|
|
sub function_slt { "(($_[1]) lt ($_[2]))" }
|
|
|
|
|
sub function_sge { "(($_[1]) ge ($_[2]))" }
|
|
|
|
|
sub function_sle { "(($_[1]) le ($_[2]))" }
|
|
|
|
|
sub function_lc { "lc($_[1])" } *function_lower = *function_lowercase = \&function_lc;
|
|
|
|
|
sub function_uc { "uc($_[1])" } *function_upper = *function_uppercase = \&function_uc;
|
|
|
|
|
sub function_requote { "requote($_[1])" } *function_re_quote = *function_preg_quote = \&function_requote;
|
|
|
|
|
sub function_split { "split($_[1], $_[2], $_[3])" }
|
|
|
|
|
sub function_quote { "quotequote($_[1])" } *function_q = \&function_quote;
|
|
|
|
|
sub function_html { "htmlspecialchars($_[1])" } *function_s = \&function_html;
|
|
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|
sub function_strip { "strip_tags($_[1])" } *function_t = \&function_strip;
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|
sub function_h { "strip_unsafe_tags($_[1])" } *function_strip_unsafe = \&function_h;
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|
# объединяет не просто скаляры, а также все элементы массивов
|
2009-12-18 15:22:55 +03:00
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sub function_join { fearr('join', @_) } *function_implode = \&function_join;
|
2009-12-18 03:07:41 +03:00
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|
# подставляет на места $1, $2 и т.п. в строке аргументы
|
2009-12-18 15:22:55 +03:00
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sub function_subst { fearr('exec_subst', @_) }
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|
# sprintf
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|
sub function_sprintf { fearr('sprintf', @_) }
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|
# strftime
|
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|
sub function_strftime { "POSIX::strftime($_[1], localtime(($_[2]) || undef))" }
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|
# выполняет подстановку function_subst
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|
|
sub exec_subst
|
2008-08-15 21:31:24 +04:00
|
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|
|
{
|
2009-12-18 03:07:41 +03:00
|
|
|
|
my $str = shift;
|
2009-12-18 15:26:00 +03:00
|
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|
$str =~ s/(?<!\\)((?:\\\\)*)\$(?:([1-9]\d*)|\{([1-9\d*)\})/$_[($2||$3)-1]/gisoe;
|
2009-12-18 03:07:41 +03:00
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|
return $str;
|
2008-08-15 21:31:24 +04:00
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|
}
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|
2009-08-19 03:37:05 +04:00
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1;
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|
__END__
|
2009-06-29 15:40:21 +04:00
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|
2009-08-19 03:37:05 +04:00
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|
=head1 Шаблонизатор VMX::Template
|
2009-06-29 15:40:21 +04:00
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|
2009-08-19 03:37:05 +04:00
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|
|
Данный модуль представляет собой новую версию VMX::Template, построенную на
|
|
|
|
|
некоторых новых идеях, ликвидировавшую безобразие и legacy-код, накопленный
|
|
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|
|
в старой версии, однако сохранившую высокую производительность и простоту.
|
2009-06-29 15:40:21 +04:00
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|
2009-08-19 03:37:05 +04:00
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|
=head1 Идеи
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Уйти от assign_vars(), assign_block_vars(). Передавать, как и в обычных движках,
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|
|
просто хеш с данными $vars. Как, например, в Template::Toolkit. При этом
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|
сохранить данные методы для совместимости.
|
2009-06-29 15:40:21 +04:00
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|
2009-08-19 03:37:05 +04:00
|
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|
Почистить синтаксис: ликвидировать "преобразования", "вложенный путь по
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|
переменной" (->key->index->key->и т.п.), специальный синтаксис для окончания SET,
|
|
|
|
|
неочевидное обращение к счётчику block.#, tr_assign_* и т.п.
|
2009-06-29 15:40:21 +04:00
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|
2009-08-19 03:37:05 +04:00
|
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|
Переписать с нуля компилятор.
|
2009-06-29 15:40:21 +04:00
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|
2009-08-19 03:37:05 +04:00
|
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|
Добавить в употребление функции, но только самые необходимые.
|
2009-06-29 15:40:21 +04:00
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|
2009-08-19 03:37:05 +04:00
|
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|
Добавить обработку ошибок и диагностические сообщения.
|
2009-06-29 15:40:21 +04:00
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|
2009-08-19 03:37:05 +04:00
|
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|
=head1 Реализация
|
2009-06-29 15:40:21 +04:00
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|
2009-08-19 03:37:05 +04:00
|
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|
Путь к переменной теперь может включать в себя числа.
|
2009-06-29 15:40:21 +04:00
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|
2009-08-19 03:37:05 +04:00
|
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|
Вне BEGIN - {block} будет иметь значение ARRAY(0x...) т.е. массив всех
|
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|
|
итераций блока block, а {block.0} будет иметь значение HASH(0x...), т.е.
|
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|
первую итерацию блока block.
|
2009-06-29 15:40:21 +04:00
|
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|
2009-08-19 03:37:05 +04:00
|
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|
<!-- BEGIN block -->
|
2009-06-29 15:40:21 +04:00
|
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|
2009-08-19 03:37:05 +04:00
|
|
|
|
Внутри BEGIN - {block} будет иметь значение HASH(0x...), т.е. уже значение
|
|
|
|
|
текущей итерации блока block, а {block.#} будет иметь значением номер текущей
|
|
|
|
|
итерации {block.var}, считаемый с 0, а не с 1, как в старой версии.
|
2009-06-29 15:40:21 +04:00
|
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|
|
2009-08-19 03:37:05 +04:00
|
|
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|
<!-- END block -->
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
На <!-- END другоеимя --> после <!-- BEGIN block --> ругнётся, ибо нефиг.
|
|
|
|
|
Если block в хеше данных - не массив, а хеш - значит, итерация у блока только
|
|
|
|
|
одна, и <!-- BEGIN block --> работает как for($long_expression) {} в Perl.
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
Операторов НЕТ, но есть функции.
|
|
|
|
|
Пример:
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
<!-- IF OR(function(block.key1),AND(block.key2,block.key3)) -->
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
Синтаксис вызова функции нескольких аргументов:
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
<!-- function(block.key, 0, "abc") -->
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
Подстановка:
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
{function(block.key, 0, "abc")}
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
Синтаксис вызова функции одного аргумента:
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
<!-- function(block.key) -->
|
|
|
|
|
<!-- function block.key -->
|
|
|
|
|
{block.key/L}
|
|
|
|
|
{L block.key}
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
Условный вывод:
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
<!-- IF function(block.key) --><!-- ELSEIF ... --><!-- END -->
|
|
|
|
|
<!-- IF NOT block.key -->...<!-- END -->
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
Запись значения переменной:
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
<!-- SET block.key -->...<!-- END -->
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
или
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
<!-- SET block.key = выражение -->
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
=head1 Функции
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
=head2 OR, AND, NOT
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
Логические ИЛИ, И, НЕ, действующие аналогично Perl операторам || && !.
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
=head2 EVEN, ODD
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
Истина в случае, если аргумент чётный или нечётный соответственно.
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
=head2 INT, ADD, MUL, DIV, MOD
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
Преобразование к целому числу и арифметические операции.
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
=head2 EQ, SEQ, GT, LT, GE, LE, SGT, SLT, SGE, SLE
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
Действуют аналогично Perl операторам == eq > < >= <= gt lt ge le.
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
=head2 CONCAT, JOIN, SPLIT, COUNT
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
Конкатенация всех своих аргументов - concat(аргументы).
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
Конкатенация элементов массива через разделитель - join(строка,аргументы).
|
|
|
|
|
Причём если какие-то аргументы - массивы, конкатенирует все их элементы,
|
|
|
|
|
а не их самих.
|
2009-06-29 16:15:06 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
Разделение строки по регулярному выражению и лимиту - split(РЭ,аргумент,лимит).
|
|
|
|
|
Лимит необязателен. (см. perldoc -f split)
|
2009-06-29 16:15:06 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
Количество элементов в массиве или 0 если не массив - count(аргумент).
|
2009-07-10 19:37:23 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
=head2 LC=LOWER=LOWERCASE, UC=UPPER=UPPERCASE
|
2009-06-29 16:15:06 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
Нижний и верхний регистр.
|
2009-06-29 16:15:06 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
=head2 L=TRANSLATE, LZ=TRANSLATE_NULL
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
Контекстный перевод и он же либо пустое значение.
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
=head2 S=HTML, T=STRIP, H=STRIP_UNSAFE
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
Преобразование символов < > & " ' в HTML-сущности,
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
Удаление всех тегов,
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
Удаление запрещённых тегов.
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
=head2 Q=QUOTE, REQUOTE=RE_QUOTE=PREG_QUOTE
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
Экранирование символов " ' \
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
2009-08-19 03:37:05 +04:00
|
|
|
|
А также экранирование символов, являющихся специальными в регулярных выражениях (см. perldoc perlre).
|
2009-06-29 15:40:21 +04:00
|
|
|
|
|
|
|
|
|
=cut
|