Page History

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Note
This is a draft document. It can be modified at any time by any committer. Comments on the draft should be made on the dev mailing list.

Attributes

Info

title	Proposed Attribute Type Section

Attribute Types

constant	A string constant. The string may not include an expression
constant+expr	A string constant. The string may include an expression, but an expression-only string is not allowed
expression	A UEL expression
script	A short script ("scriptlet")

...

Conditional/Looping Statements

...

Info

`<assert>`

`<check-id>`

`<check-errors>`

`<check-permission>`

`<condition>`

`<else>`

`<else-if>`

`<if>`

`<if-compare>`

`<if-compare-field>`

`<if-empty>`

`<if-has-permission>`

`<if-instance-of>`

`<if-not-empty>`

`<if-regexp>`

`<if-validate-method>`

`<iterate>`

`<iterate-map>`

`<loop>`

`<not>`

`<or>`

`<return>`

`<then>`

`<while>`

...

title	Proposed Changes

Add <continue> and <break> looping sub-elements.

Section

Column

width	20%

`<and>`

Column

Combines conditional elements using a boolean AND.

Code Block

	xml
	xml


<if>
    <condition>
        <and>
            <if-compare field="colorModel" operator="equals" value="RYB" />
            <or>
                <if-compare field="color" operator="equals" value="red" />
                <if-compare field="color" operator="equals" value="yellow" />
                <if-compare field="color" operator="equals" value="blue" />
            </or>
        </and>
    </condition>
    <then>
        <set field="isPrimaryColor" value="true" type="Boolean" />
    </then>
    <else>
        <set field="isPrimaryColor" value="false" type="Boolean" />
    </else>
</if>

Section

Column

width	20%

`<assert>`

Column

Evaluates each contained condition independently, and adds an error to the error message list for each condition that does not evaluate to `true`.

Attributes

title	optional	The assertion title - used in error messages to identify the assertion
error-list-name	optional	The name of the error list	Defaults to "error_list"

Child Elements

Any <condition> child element

optional

A condition to test

Info

title	Proposed Changes

Currently, the title attribute is optional. Keep the title attribute optional but have it default to the file location and line number.
Eliminate the error-list-name attribute.
Currently, the child element is optional. Require at least one child element.

`<check-id>`

`<check-errors>`

`<check-permission>`

Section

Column

width	20%

`<condition>`

Column

Combines a group of conditional elements into a single logical (true/false) expression.

Code Block

	xml
	xml


<if>
    <condition>
        <and>
            <if-compare field="colorModel" operator="equals" value="RYB" />
            <or>
                <if-compare field="color" operator="equals" value="red" />
                <if-compare field="color" operator="equals" value="yellow" />
                <if-compare field="color" operator="equals" value="blue" />
            </or>
        </and>
    </condition>
    <then>
        <set field="isPrimaryColor" value="true" type="Boolean" />
    </then>
    <else>
        <set field="isPrimaryColor" value="false" type="Boolean" />
    </else>
</if>

Section

Column

width	20%

`<else>`

Column

Contains a block of code to be executed when a `<condition>` element evaluates to `false`.

Code Block

	xml
	xml


<if>
    <condition>
        <and>
            <if-compare field="colorModel" operator="equals" value="RYB" />
            <or>
                <if-compare field="color" operator="equals" value="red" />
                <if-compare field="color" operator="equals" value="yellow" />
                <if-compare field="color" operator="equals" value="blue" />
            </or>
        </and>
    </condition>
    <then>
        <set field="isPrimaryColor" value="true" type="Boolean" />
    </then>
    <else>
        <set field="isPrimaryColor" value="false" type="Boolean" />
    </else>
</if>

Section

Column

width	20%

`<else-if>`

Column

Contains a block of code to be executed when a `<condition>` element evaluates to `false`.

Code Block

	xml
	xml


<if>
    <condition>
        <and>
            <if-compare field="colorModel" operator="equals" value="RYB" />
            <or>
                <if-compare field="color" operator="equals" value="red" />
                <if-compare field="color" operator="equals" value="yellow" />
                <if-compare field="color" operator="equals" value="blue" />
            </or>
        </and>
    </condition>
    <then>
        <set field="isPrimaryColor" value="true" type="Boolean" />
    </then>
    <else-if>
        <condition>
            <and>
                <if-compare field="colorModel" operator="equals" value="CYM" />
                <or>
                    <if-compare field="color" operator="equals" value="cyan" />
                    <if-compare field="color" operator="equals" value="yellow" />
                    <if-compare field="color" operator="equals" value="magenta" />
                </or>
            </and>
        </condition>
        <then>
            <set field="isPrimaryColor" value="true" type="Boolean" />
        </then>
    </else-if>
    <else>
        <set field="isPrimaryColor" value="false" type="Boolean" />
    </else>
</if>

`<if>`

`<if-compare>`

`<if-compare-field>`

`<if-empty>`

`<if-has-permission>`

`<if-instance-of>`

`<if-not-empty>`

`<if-regexp>`

`<if-validate-method>`

`<iterate>`

`<iterate-map>`

`<loop>`

Section

Column

width	20%

`<not>`

Column
Inverts a conditional element using a boolean NOT.

Section

Column

width	20%

`<or>`

Column

Combines conditional elements using a boolean OR.

Code Block

	xml
	xml


<if>
    <condition>
        <and>
            <if-compare field="colorModel" operator="equals" value="RYB" />
            <or>
                <if-compare field="color" operator="equals" value="red" />
                <if-compare field="color" operator="equals" value="yellow" />
                <if-compare field="color" operator="equals" value="blue" />
            </or>
        </and>
    </condition>
    <then>
        <set field="isPrimaryColor" value="true" type="Boolean" />
    </then>
    <else>
        <set field="isPrimaryColor" value="false" type="Boolean" />
    </else>
</if>

`<return>`

Section

Column

width	20%

`<then>`

Column

Contains a block of code to be executed when a `<condition>` element evaluates to `true`.

Code Block

	xml
	xml


<if>
    <condition>
        <and>
            <if-compare field="colorModel" operator="equals" value="RYB" />
            <or>
                <if-compare field="color" operator="equals" value="red" />
                <if-compare field="color" operator="equals" value="yellow" />
                <if-compare field="color" operator="equals" value="blue" />
            </or>
        </and>
    </condition>
    <then>
        <set field="isPrimaryColor" value="true" type="Boolean" />
    </then>
    <else>
        <set field="isPrimaryColor" value="false" type="Boolean" />
    </else>
</if>

`<while>`

Section

Column

width	20%

`<xor>`

Column
Combines conditional elements using a boolean XOR.

Call Operations

`<call-bsh>`

...

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Old Version 33

New Version 34

Key

Attributes

Attribute Types

Conditional/Looping Statements

<assert>

<check-id>

<check-errors>

<check-permission>

<condition>

<else>

<else-if>

<if>

<if-compare>

<if-compare-field>

<if-empty>

<if-has-permission>

<if-instance-of>

<if-not-empty>

<if-regexp>

<if-validate-method>

<iterate>

<iterate-map>

<loop>

<not>

<or>

<return>

<then>

<while>

<and>

Combines conditional elements using a boolean AND.

<assert>

Evaluates each contained condition independently, and adds an error to the error message list for each condition that does not evaluate to true.

<check-id>

<check-errors>

<check-permission>

<condition>

Combines a group of conditional elements into a single logical (true/false) expression.

<else>

Contains a block of code to be executed when a <condition> element evaluates to false.

<else-if>

Contains a block of code to be executed when a <condition> element evaluates to false.

<if>

<if-compare>

<if-compare-field>

<if-empty>

<if-has-permission>

<if-instance-of>

<if-not-empty>

<if-regexp>

<if-validate-method>

<iterate>

<iterate-map>

<loop>

<not>

Inverts a conditional element using a boolean NOT.

<or>

Combines conditional elements using a boolean OR.

<return>

<then>

Contains a block of code to be executed when a <condition> element evaluates to true.

<while>

<xor>

Combines conditional elements using a boolean XOR.

Call Operations

<call-bsh>

`<assert>`

`<check-id>`

`<check-errors>`

`<check-permission>`

`<condition>`

`<else>`

`<else-if>`

`<if>`

`<if-compare>`

`<if-compare-field>`

`<if-empty>`

`<if-has-permission>`

`<if-instance-of>`

`<if-not-empty>`

`<if-regexp>`

`<if-validate-method>`

`<iterate>`

`<iterate-map>`

`<loop>`

`<not>`

`<or>`

`<return>`

`<then>`

`<while>`

`<and>`

`<assert>`

Evaluates each contained condition independently, and adds an error to the error message list for each condition that does not evaluate to `true`.

`<check-id>`

`<check-errors>`

`<check-permission>`

`<condition>`

`<else>`

Contains a block of code to be executed when a `<condition>` element evaluates to `false`.

`<else-if>`

Contains a block of code to be executed when a `<condition>` element evaluates to `false`.

`<if>`

`<if-compare>`

`<if-compare-field>`

`<if-empty>`

`<if-has-permission>`

`<if-instance-of>`

`<if-not-empty>`

`<if-regexp>`

`<if-validate-method>`

`<iterate>`

`<iterate-map>`

`<loop>`

`<not>`

`<or>`

`<return>`

`<then>`

Contains a block of code to be executed when a `<condition>` element evaluates to `true`.

`<while>`

`<xor>`

`<call-bsh>`