NAME
Text::Haml - Haml Perl implementation
SYNOPSIS
use Text::Haml;
my $haml = Text::Haml->new;
my $html = $haml->render('%p foo'); # <p>foo</p>
$html = $haml->render('= user', user => 'friend'); # <div>friend</div>
# Use Haml file
$html = $haml->render_file('tmpl/index.haml', user => 'friend');
DESCRIPTION
Text::Haml implements Haml http://haml-lang.com/docs/yardoc/file.HAML_REFERENCE.html specification.
Text::Haml passes specification tests written by Norman Clarke http://github.com/norman/haml-spec and supports only cross-language Haml features. Do not expect Ruby specific things to work.
ATTRIBUTES
Text::Haml implements the following attributes:
append
Holds the string of code that is appended to the generated Perl code.
code
Holds the Perl code.
compiled
Holds compiled code.
encoding
$haml->encoding('utf-8');
Default is utf-8.
escape
Escape subroutine presented as string.
Default is
$haml->escape(<<'EOF');
my $s = shift;
$s =~ s/&/&/g;
$s =~ s/</</g;
$s =~ s/>/>/g;
$s =~ s/"/"/g;
$s =~ s/'/'/g;
return $s;
EOF
escape_html
$haml->escape_html(0);
Switch on/off Haml output html escaping. Default is on.
filters
Holds filters.
format
$haml->format('xhtml');
Supported formats: xhtml, html, html5.
Default is xhtml.
namespace
Holds the namespace under which the Perl package is generated.
prepend
Holds the string of code that is prepended to the generated Perl code.
vars
Holds the variables that are passed during the rendering.
vars_as_subs
When options is NOT SET (by default) passed variables are normal Perl variables and are used with $
prefix.
$haml->render('%p $var', var => 'hello');
When this option is SET passed variables are Perl lvalue subroutines and are used without $
prefix.
$haml->render('%p var', var => 'hello');
But if you declare Perl variable in a block, it must be used with $
prefix.
$haml->render('<<EOF')
- my $foo;
%p= $foo
EOF
helpers
helpers => {
foo => sub {
my $self = shift;
my $string = shift;
$string =~ s/r/z/;
return $string;
}
}
Holds helpers subroutines. Helpers can be called in Haml text as normal Perl functions. See also add_helper.
helpers_arg
$haml->helpers_args($my_context);
First argument passed to the helper (Text::Haml instance by default).
error
$haml->error;
Holds the last error.
tape
Holds parsed haml elements.
path
Holds path of Haml templates. Current directory is a default. If you want to set several paths, arrayref can also be set up. This way is the same as Text::Xslate.
cache
Holds cache level of Haml templates. 1 is a default. 0 means "Not cached", 1 means "Checked template mtime" and 2 means "Used always cached". This way is the same as Text::Xslate.
cache_dir
Holds cache directory of Haml templates. $ENV{HOME}/.text_haml_cache is a default. Unless $ENV{HOME}, File::Spec->tempdir was used. This way is the same as Text::Xslate.
METHODS
new
my $haml = Text::Haml->new;
add_helper
$haml->add_helper(current_time => sub { time });
Adds a new helper.
add_filter
$haml->add_filter(compress => sub { $_[0] =~ s/\s+/ /g; $_[0]});
Adds a new filter.
build
$haml->build(@_);
Builds the Perl code.
compile
$haml->compile;
Compiles parsed code.
interpret
$haml->interpret(@_);
Interprets compiled code.
parse
$haml->parse('%p foo');
Parses Haml string building a tree.
render
my $text = $haml->render('%p foo');
my $text = $haml->render('%p var', var => 'hello');
Renders Haml string. Returns undef on error. See error attribute.
render_file
my $text = $haml->render_file('foo.haml', var => 'hello');
A helper method that loads a file and passes it to the render method. Since "%____vars" is used internally, you cannot use this as parameter name.
PERL SPECIFIC IMPLEMENTATION ISSUES
String interpolation
Despite of existing string interpolation in Perl, Ruby interpolation is also supported.
$haml->render('%p Hello #{user}', user => 'foo')
Hash keys
When declaring tag attributes :
symbol can be used.
$haml->render("%a{:href => 'bar'}");
Perl-style is supported but not recommented, since your Haml template won't work with Ruby Haml implementation parser.
$haml->render("%a{href => 'bar'}");
DEVELOPMENT
Repository
http://github.com/vti/text-haml
AUTHOR
Viacheslav Tykhanovskyi, vti@cpan.org
.
CREDITS
In alphabetical order:
Nick Ragouzis
Norman Clarke
COPYRIGHT AND LICENSE
Copyright (C) 2009-2011, Viacheslav Tykhanovskyi.
This program is free software, you can redistribute it and/or modify it under the terms of the Artistic License version 2.0.