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![[% foo %] GET, IF, UNLESS, ELSE, FOR, INCLUDE (and others )](https://image.slidesharecdn.com/changingtemplateengineupload-101017064026-phpapp02/75/Changing-Template-Engine-12-2048.jpg)
![<body> My Home Directory is [% home %] <br /> My Path is set to [% path %] </body>](https://image.slidesharecdn.com/changingtemplateengineupload-101017064026-phpapp02/75/Changing-Template-Engine-14-2048.jpg)
![TMPL_VAR -> [% foo %] TMPL_IF -> [% IF %] TMPL_UNLESS -> [% UNLESS %] TMPL_ELSE ->[% ELSE %] TMPL_LOOP -> [% FOR %] TMPL_INCLUDE -> [% INCLUDE%] MT_TRANS -> [% |loc %]foo[% END %]](https://image.slidesharecdn.com/changingtemplateengineupload-101017064026-phpapp02/75/Changing-Template-Engine-26-2048.jpg)
![$ data =~ s! (<(/?)TMPL_([^\s>]+)([^>]*)>) ! munge($1, $2, $3, $4) !ge ; $data =~ s! <MT_TRANS ([^>]+)> ! munge_locale($1) !ge ;](https://image.slidesharecdn.com/changingtemplateengineupload-101017064026-phpapp02/75/Changing-Template-Engine-28-2048.jpg)
![Don't use reserved keywords <TMPL_VAR NAME=TAGS> [% tags %]](https://image.slidesharecdn.com/changingtemplateengineupload-101017064026-phpapp02/75/Changing-Template-Engine-31-2048.jpg)
![Don't use reserved keywords <TMPL_VAR NAME=TAGS> [% tags %] # NG [% GET tags %] # OK](https://image.slidesharecdn.com/changingtemplateengineupload-101017064026-phpapp02/75/Changing-Template-Engine-32-2048.jpg)
![Don't use camel case variable name <TMPL_VAR NAME=USERNAME> [% username %] # Syntax is OK. But didn't see user name :(](https://image.slidesharecdn.com/changingtemplateengineupload-101017064026-phpapp02/75/Changing-Template-Engine-33-2048.jpg)
![Don't use camel case variable name <TMPL_VAR NAME=USERNAME> [% username %] # see the handler code $param->{ UserName } = $user->name;](https://image.slidesharecdn.com/changingtemplateengineupload-101017064026-phpapp02/75/Changing-Template-Engine-34-2048.jpg)
![Don't use camel case variable name <TMPL_VAR NAME=USERNAME> [% username %] # NG $param->{UserName} = $user->name; [% UserName %] # OK :)](https://image.slidesharecdn.com/changingtemplateengineupload-101017064026-phpapp02/75/Changing-Template-Engine-35-2048.jpg)
![MT_TRANS multi params [error] processing openid_login.tt: file error - parse error - openid_login.tt line 312: unexpected end of input](https://image.slidesharecdn.com/changingtemplateengineupload-101017064026-phpapp02/75/Changing-Template-Engine-37-2048.jpg)
![MT_TRANS multi params < MT_TRANS phrase= "<a href="[_1]">[_2]</a> is the next category." params= "<$MTCategoryArchiveLink$>%%<$MTCategoryLabel$>" >](https://image.slidesharecdn.com/changingtemplateengineupload-101017064026-phpapp02/75/Changing-Template-Engine-38-2048.jpg)
![sequence [after]](https://image.slidesharecdn.com/changingtemplateengineupload-101017064026-phpapp02/75/Changing-Template-Engine-46-2048.jpg)
Uploaded byTakatsugu Shigeta
Changing Template Engine
The document discusses migrating from the HTML::Template template engine to Template Toolkit. It describes some of the key differences between the two engines and the process involved in converting templates from one to the other. Tips are provided for the conversion including avoiding reserved keywords and variable naming conventions to ensure a smooth migration.
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Changing Template Engine
- 1. テンプレートエンジンの移行 Changing TemplateEngine YAPC::Asia 2010 Tokyo Takatsugu Shigeta
- 2.
- 3. Q. Have youused any template engine?
- 4.
- 5. HTML::Template Template Text::MicroTemplateTenjin MENTA::Template Mojo::Template MTML Text::ClearSilver Text::Xslate
- 6. Migrating from HTML::Templateto Template Toolkit
- 7.
- 8. <TMPL_VAR NAME=foo> TMPL_VAR,TMPL_IF, TMPL_UNLESS, TMPL_ELSE, TMPL_LOOP, TMPL_INCLUDE
- 9. use HTML::Template; my $tmpl = HTML::Template-> new (filename => 'sample_html_template.tmpl' ); $tmpl ->param( 'home' , '/home/shigeta' ); $tmpl ->param( 'path' , 'path/to' ); say $tmpl ->output;
- 10. <body> MyHome Directory is < TMPL_VAR NAME = HOME > <br /> My Path is set to < TMPL_VAR NAME = PATH > </body>
- 11.
- 12. [% foo %]GET, IF, UNLESS, ELSE, FOR, INCLUDE (and others )
- 13. use Template; my $tmpl = Template-> new ; my $vars = { 'home' => '/home/shigeta' , 'path' => 'path/to' , }; my $output ; $tmpl ->process( 'sample_template_toolkit.tt' , $vars , \$output ); say $output;
- 14. <body> MyHome Directory is [% home %] <br /> My Path is set to [% path %] </body>
- 15.
- 16.
- 17.
- 18. * borrow theirtemplates * unnecessary code on handler
- 19.
- 20. unnecessary code onhandler sub handler { $param->{'user_id'} = $user->id; $param->{'blog_id'} = $blog->id; $app->build_page("foobar.tmpl", $param); }
- 21. unnecessary code onhandler sub handler { $param->{'user_id'} = $user->id; $param->{'blog_id'} = $blog->id; $param->{'user_name'} = $user->name; $param->{'blog_url'} = $blog->url; $app->build_page("foobar.tmpl", $param); }
- 22.
- 23. This graph isrough estimates :)
- 24.
- 25.
- 26. TMPL_VAR -> [%foo %] TMPL_IF -> [% IF %] TMPL_UNLESS -> [% UNLESS %] TMPL_ELSE ->[% ELSE %] TMPL_LOOP -> [% FOR %] TMPL_INCLUDE -> [% INCLUDE%] MT_TRANS -> [% |loc %]foo[% END %]
- 27. $ converter<filename> <html> : : </html>
- 28. $ data =~ s! (<(/?)TMPL_([^\s>]+)([^>]*)>) ! munge($1, $2, $3, $4) !ge ; $data =~ s! <MT_TRANS ([^>]+)> ! munge_locale($1) !ge ;
- 29.
- 30. * Don't usereserved keywords * Don't use camel case variable name * Don't use underscore at first letter like _foo * MT_TRANS multi params
- 31. Don't use reservedkeywords <TMPL_VAR NAME=TAGS> [% tags %]
- 32. Don't use reservedkeywords <TMPL_VAR NAME=TAGS> [% tags %] # NG [% GET tags %] # OK
- 33. Don't use camelcase variable name <TMPL_VAR NAME=USERNAME> [% username %] # Syntax is OK. But didn't see user name :(
- 34. Don't use camelcase variable name <TMPL_VAR NAME=USERNAME> [% username %] # see the handler code $param->{ UserName } = $user->name;
- 35. Don't use camelcase variable name <TMPL_VAR NAME=USERNAME> [% username %] # NG $param->{UserName} = $user->name; [% UserName %] # OK :)
- 36. Don't use underscoreat first letter like _foo Any key in a hash which starts with a '_' or '.' character will be considered private and cannot be evaluated or updated from within a template. via Template::Manual::Variables
- 37. MT_TRANS multi params [error] processing openid_login.tt: file error - parse error - openid_login.tt line 312: unexpected end of input
- 38. MT_TRANS multi params < MT_TRANS phrase= "<a href="[_1]">[_2]</a> is the next category." params= "<$MTCategoryArchiveLink$>%%<$MTCategoryLabel$>" >
- 39.
- 40.
- 41. TypePad::View::TT A wrapperclass for TT which bridges the gap between HTML::Template and Template Toolkit
- 42. use Template;my $tmpl = Template->new; my $vars = { 'home' => '/home/shigeta', 'path' => 'path/to', }; my $output; $tmpl->process('sample_template_toolkit.tt', $vars, \$output); say $output;
- 43. use HTML::Template;my $tmpl = HTML::Template->new(filename => 'sample_html_template.tmpl'); $tmpl->param('home', '/home/shigeta'); $tmpl->param('path', 'path/to'); say $tmpl->output;
- 44. use TypePad::View::TT ; my $tmpl = TypePad::View:TT ->new(filename => 'sample_html_template.tmpl'); $tmpl->param('home', '/home/shigeta'); $tmpl->param('path', 'path/to'); say $tmpl->output;
- 45. package TypePad::View::TT; subnew { $self->{engine} = Template->new; } sub param { my ($key, $val) = @_; $self->{var}->{$key} = $val; } sub process { $self->{engine}->process; } *output = \&process;
- 46.
- 47.
- 48.
- 49. compare processing speedTemplate: 0.0173818 HTML::Template: 0.0157874 using Time::HiRes CentOS 4.6 (64bit), Perl v5.8.9, $Template::VERSION 2.15 $HTML::Template::VERSION 2.8
- 50. in near future,Text::Xslate
- 51. Embrace Change- Extreme Programming
- 52.
- 53. Thank you foryour attention!