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[%#
    Template for handling all manner of statements in TentMaker templates.

    Expects these parameters:

    method_group         - the star in update_*_bool
    name_prefix          - beginning of input element name, this must
                           correspond to the TentMaker.pm update_* method.
                           Used only for multiples and pairs.
    id_prefix            - beginning of the input element id the AST ident
                           should be part of this
    keyword_prefix       - Used in front of the keyword when forming names
                           and the callback parameter.  Include your own
                           trailing double colon.
    single_value         - initial value (singular) for all types
                           ignored if statement.multiple is set
    values               - initial values (plural) for text type when multiple
                           is set
    key                  - the keyword of this statement (same as
                           statement.keyword below)
    statement            - hash of legal statements whose keys are below

    keys in the statement hash:

    type                 - pick from: text, textarea, select, boolean,
                           pair, or controlled_boolean
    keyword              - statement's keyword
    default              - what to use if boolean (or controlled_boolean)
                           value is undefined

    multiple             - indicates that more than one value or pair
                           can be given for the keyword (think comma
                           separated list).  Only applies to types text,
                           select, and pair.

    pair_labels          - Headings to put over pair entry text boxes.
                           Only applies to type pair.

    false                - the text of the false value for controlled_boolean
                           if no value is given, 'undef' is used
    true                 - similar to false, guess how they differ

    options              - an array of hashes required for type selectone
                           each hash has two keys: value and label

    urgency              - fills in the * in class='urgency_*' this is
                           used for color coding important fields
                           choose from 0, 1, 3, 5, or 10 which are (roughly)
                           white, lt. blue, green, orange, or red

values are double qouted to prevent clashes with single
quotes in the values

-%]
[%-   full_key     = "$keyword_prefix$key";
     full_name    = "$name_prefix$key";
     full_id      = "$id_prefix$key";       -%]

[% IF    statement.type == 'textarea'           %]
<textarea id='[% full_id %]'
          cols='50' rows='6'
          class='urgency_[% statement.urgency || 0 %]'
    onblur='javascript:update_tree(
        "[% method_group %]_text",
        "[% full_key %]",
        this.value
    )'
>
    [% single_value || '' %]
</textarea>
[% ELSIF statement.type == 'boolean'            %]
<input type='checkbox'
       value='[% full_name %]'
       id='[% full_id %]'
       class='urgency_[% statement.urgency || 0 %]'
       [%- IF single_value || statement.default == 'true' -%]
       checked='checked'
       [%- END -%]
       onchange='javascript:update_tree(
           "[% method_group %]_bool",
           "[% full_key %]",
           this.checked[% IF statement.quick_label || statement.refresh %],
           "",
           "full_edit"[% END %]
       )'
/>
[% ELSIF statement.type == 'controlled_boolean' %]
<input type='checkbox'
       value='[% full_name %]'
       id='[% full_id %]'
       class='urgency_[% statement.urgency || 0 %]'
       [%- IF single_value.defined -%]
           [%- IF single_value == statement.true -%]
                checked='checked'
           [%- END -%]
       [%- ELSIF statement.default == 'true' -%]
           checked='checked'
       [%- END -%]
       onchange='javascript:update_tree(
           "[% method_group %]_bool_controlled",
           "[% full_key %]",