[21] | 1 | { |
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| 2 | my ( |
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| 3 | $context, # line or group |
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[29] | 4 | @sections, # master data structure |
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| 5 | $section_head, |
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| 6 | $section_id, |
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| 7 | @lines, # lines in each section |
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[21] | 8 | $title, |
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| 9 | $author, |
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| 10 | $description, |
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| 11 | %lists, |
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| 12 | %patterns, |
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| 13 | @group, # current group |
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| 14 | %groups, # stored groups of fields |
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| 15 | $type, |
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| 16 | @options, |
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[24] | 17 | $required, |
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[21] | 18 | $list_var, |
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| 19 | $size, |
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| 20 | $rows, |
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| 21 | $cols, |
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| 22 | ); |
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| 23 | $context = 'line'; |
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| 24 | } |
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[1] | 25 | |
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[28] | 26 | form_spec: (list_def | description_def | group_def | line)(s) |
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[1] | 27 | { |
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[29] | 28 | # grab the last section, if there is any |
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| 29 | if (@lines) { |
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| 30 | push @sections, |
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| 31 | { |
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| 32 | id => $section_id, |
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| 33 | head => $section_head, |
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| 34 | lines => [ @lines ], |
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| 35 | }; |
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| 36 | } |
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| 37 | |
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| 38 | $section_id = $item{identifier}; |
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| 39 | $section_head = $item[3]; |
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| 40 | @lines = (); |
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[1] | 41 | $return = { |
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| 42 | title => $title, |
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| 43 | author => $author, |
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[14] | 44 | description => $description, |
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[28] | 45 | lists => \%lists, |
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| 46 | patterns => \%patterns, |
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| 47 | groups => \%groups, |
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[29] | 48 | sections => \@sections, |
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[1] | 49 | } |
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| 50 | } |
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| 51 | |
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[16] | 52 | list_def: '!list' var_name (static_list | dynamic_list) |
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| 53 | { $lists{$item{var_name}} = [ @options ]; @options = () } |
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[1] | 54 | |
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[10] | 55 | static_list: '{' option(s /,\s*/) /,?/ '}' |
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| 56 | |
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| 57 | dynamic_list: '&' <perl_codeblock> |
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| 58 | { |
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| 59 | my @results = (eval $item[2]); |
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| 60 | if (ref $results[0] eq 'HASH') { |
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| 61 | @options = @results; |
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| 62 | } else { |
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| 63 | @options = map { { $_ => $_ } } @results; |
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| 64 | } |
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| 65 | } |
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| 66 | |
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[14] | 67 | description_def: '!description' <perl_codeblock> |
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| 68 | { warn "[Text::FormBuilder] Description redefined at input text line $thisline\n" if defined $description; |
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| 69 | |
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| 70 | $description = $item[2]; |
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| 71 | $description =~ s/^{\s*|\s*}$//g; |
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| 72 | } |
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| 73 | |
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[21] | 74 | group_def: '!group' { $context = 'group' } var_name '{' field_line(s) '}' { $context = 'line' } |
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| 75 | { |
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| 76 | #warn "$item{var_name} group; context $context\n" |
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| 77 | $groups{$item{var_name}} = [ @group ]; |
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| 78 | @group = (); |
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| 79 | } |
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[1] | 80 | |
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[21] | 81 | field_line: <skip:'[ \t]*'> ( field | comment | blank ) "\n" |
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[29] | 82 | line: <skip:'[ \t]*'> ( title | author | pattern_def | section_head | heading | group_field | unknown_directive | field | comment | blank ) "\n" |
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[21] | 83 | |
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[1] | 84 | title: '!title' /.*/ |
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[28] | 85 | { |
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| 86 | warn "[Text::Formbuilder] Title redefined at input text line $thisline\n" if defined $title; |
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| 87 | $title = $item[2]; |
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| 88 | } |
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[1] | 89 | |
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| 90 | author: '!author' /.*/ |
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[28] | 91 | { |
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| 92 | warn "[Text::Formbuilder] Author redefined at input text line $thisline\n" if defined $author; |
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| 93 | $author = $item[2]; |
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| 94 | } |
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[1] | 95 | |
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[16] | 96 | pattern_def: '!pattern' var_name pattern |
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| 97 | { $patterns{$item{var_name}} = $item{pattern} } |
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[1] | 98 | |
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| 99 | pattern: /.*/ |
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| 100 | |
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[29] | 101 | section_head: '!section' identifier /.*/ |
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| 102 | { |
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| 103 | #warn "starting section $item{identifier}\n"; |
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| 104 | #warn " with heading $item[3]\n" if $item[3]; |
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| 105 | |
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| 106 | if (@lines) { |
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| 107 | push @sections, |
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| 108 | { |
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| 109 | id => $section_id, |
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| 110 | head => $section_head, |
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| 111 | lines => [ @lines ], |
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| 112 | }; |
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| 113 | } |
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| 114 | |
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| 115 | $section_id = $item{identifier}; |
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| 116 | $section_head = $item[3]; |
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| 117 | @lines = (); |
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| 118 | } |
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| 119 | |
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[28] | 120 | heading: '!head' /.*/ { push @lines, [ 'head', $item[2] ] } |
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[11] | 121 | |
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[21] | 122 | group_field: '!field' group_name name label(?) |
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[28] | 123 | { |
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| 124 | push @lines, [ 'group', { name => $item{name}, label => $item{'label(?)'}[0], group => $item{group_name} } ]; |
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[21] | 125 | } |
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| 126 | |
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| 127 | group_name: /%[A-Z_]+/ |
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| 128 | |
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[1] | 129 | field: name field_size(?) label(?) hint(?) type(?) default(?) option_list(?) validate(?) |
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| 130 | { |
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| 131 | my $field = { |
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| 132 | name => $item{name}, |
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| 133 | label => $item{'label(?)'}[0], |
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| 134 | comment => $item{'hint(?)'}[0], |
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| 135 | type => $item{'type(?)'}[0], |
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| 136 | value => $item{'default(?)'}[0], |
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| 137 | list => $list_var, |
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| 138 | validate => $item{'validate(?)'}[0], |
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[24] | 139 | required => $required || 0, |
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[1] | 140 | }; |
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| 141 | |
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| 142 | $$field{options} = [ @options ] if @options; |
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| 143 | |
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| 144 | $$field{rows} = $rows if defined $rows; |
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| 145 | $$field{cols} = $cols if defined $cols; |
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| 146 | $$field{size} = $size if defined $size; |
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| 147 | |
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[28] | 148 | #warn "[$thisline] field $item{name}; context $context\n"; |
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[21] | 149 | if ($context eq 'group') { |
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| 150 | push @group, $field; |
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| 151 | } else { |
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| 152 | push @lines, [ 'field', $field ]; |
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| 153 | } |
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[1] | 154 | |
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| 155 | $type = undef; |
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[24] | 156 | $required = 0; |
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[1] | 157 | $list_var = undef; |
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| 158 | $size = undef; |
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| 159 | $rows = undef; |
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| 160 | $cols = undef; |
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| 161 | @options = (); |
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| 162 | |
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| 163 | } |
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| 164 | |
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| 165 | name: identifier |
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| 166 | |
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[16] | 167 | var_name: /[A-Z_]+/ |
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| 168 | |
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[1] | 169 | field_size: '[' ( row_col | size ) ']' |
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| 170 | |
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| 171 | size: /\d+/ |
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| 172 | { $size = $item[1] } |
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| 173 | |
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| 174 | row_col: /\d+/ /,\s*/ /\d+/ |
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| 175 | { $rows = $item[1]; $cols = $item[3] } |
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| 176 | |
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[22] | 177 | label: '|' (simple_multiword | quoted_string) { $item[2] } |
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[1] | 178 | |
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| 179 | hint: '[' /[^\]]+/ ']' { $item[2] } |
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| 180 | |
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| 181 | type: ':' /textarea|text|password|file|checkbox|radio|select|hidden|static/ |
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| 182 | |
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[22] | 183 | default: '=' (simple_multiword | quoted_string) { $item[2] } |
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[1] | 184 | |
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[22] | 185 | # for simple multiword values not involving punctuation |
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| 186 | simple_multiword: <skip:''> /[\w\t ]+/ { $item[2] } |
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| 187 | |
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| 188 | # my attempt at a single-quoted, non-interpolating string |
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| 189 | # where the backslash can escape literal single quotes |
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| 190 | quoted_string: <skip:''> "'" /(\\'|[^'])*/ "'" |
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| 191 | { $item[3] =~ s/\\'/'/g; $item[3] } |
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| 192 | |
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[1] | 193 | option_list: options | list_var |
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| 194 | |
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| 195 | options: '{' option(s /,\s*/) '}' |
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| 196 | |
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| 197 | list_var: /@[A-Z_]+/ { $list_var = $item[1] } |
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| 198 | |
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[25] | 199 | option: (simple_multiword | value | quoted_string) display_text(?) |
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[23] | 200 | { push @options, { $item[1] => $item{'display_text(?)'}[0] } } |
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[1] | 201 | |
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| 202 | value: identifier |
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| 203 | |
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| 204 | display_text: '[' /[^\]]+/i ']' { $item[2] } |
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| 205 | |
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[24] | 206 | validate: '//' (optional_pattern | required_pattern) { $item[2] } |
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[1] | 207 | |
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[24] | 208 | optional_pattern: /[A-Z_]+/ '?' { $required = 0; $item[1] } |
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| 209 | |
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| 210 | required_pattern: /[A-Z_]+/ { $required = 1; $item[1] } |
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| 211 | |
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[1] | 212 | comment: '#' /.*/ |
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| 213 | blank: |
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| 214 | |
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| 215 | identifier: /\w+/ |
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[16] | 216 | |
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| 217 | # skip unknown directives with a warning |
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| 218 | unknown_directive: /\!\S*/ /.*/ |
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| 219 | { warn "[Text::Formbuilder] Skipping unknown directive '$item[1]' at input text line $thisline\n"; } |
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