{ my ($title, $author, %lists, %patterns, @fields, $type, @options, $list_var, $size, $rows, $cols); }

form_spec: (list_def | line)(s) 
    {
	$return = {
	    title    => $title,
	    author   => $author,
	    lists    => \%lists, 
	    patterns => \%patterns, 
	    fields   => \@fields,
	}
    }

list_def: '!list' list_name '{' option(s /,\s*/) /,?/ '}'
    { $lists{$item{list_name}} = [ @options ]; @options = () }

list_name: /[A-Z_]+/

line: <skip:'[ \t]*'> ( title | author | pattern_def | field | comment | blank ) "\n"

title: '!title' /.*/
    { warn "[Text::Formbuilder] Title redefined at input text line $thisline\n" if defined $title;
    $title = $item[2] }

author: '!author' /.*/
    { $author = $item[2] }

pattern_def: '!pattern' pattern_name pattern
    { $patterns{$item{pattern_name}} = $item{pattern} }

pattern_name: /[A-Z_]+/
pattern: /.*/

field: name field_size(?) label(?) hint(?) type(?) default(?) option_list(?) validate(?)
    {
	my $field = {
	    name     => $item{name},
	    label    => $item{'label(?)'}[0],
	    comment  => $item{'hint(?)'}[0],
	    type     => $item{'type(?)'}[0],
	    value    => $item{'default(?)'}[0],
            list     => $list_var,
            validate => $item{'validate(?)'}[0],
	};
	
	$$field{options} = [ @options ] if @options;
	
	$$field{rows} = $rows if defined $rows;
	$$field{cols} = $cols if defined $cols;
	$$field{size} = $size if defined $size;
	
	push @fields, $field;
	
	$type = undef;
	$list_var = undef;
	$size = undef;
	$rows = undef;
	$cols = undef;
	@options = ();
        
    }
    
name: identifier

field_size: '[' ( row_col | size ) ']'

size: /\d+/
    { $size = $item[1] }

row_col: /\d+/ /,\s*/ /\d+/
    { $rows = $item[1]; $cols = $item[3] }

label: '|' /[^:\[\{\/]+/i

hint: '[' /[^\]]+/ ']'    { $item[2] }

type: ':' /textarea|text|password|file|checkbox|radio|select|hidden|static/

default: '=' /[^\@\{\s]+/

option_list: options | list_var
    
options: '{' option(s /,\s*/) '}'

list_var: /@[A-Z_]+/ { $list_var = $item[1] }

option: value display_text(?)
    { push @options, { $item{value} => $item{'display_text(?)'}[0] } }

value: identifier

display_text: '[' /[^\]]+/i ']'    { $item[2] }

validate: '//' value

comment: '#' /.*/
blank:

identifier: /\w+/