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Help: This fixture allows the definition of a map of maps using a table where the each column represents a top-level map.
Test
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When using the !-MapOfMapsFixture-! in a [["Table" table][.FitNesse.FullReferenceGuide.UserGuide.WritingAcceptanceTests.SliM.TableTable]] each column of the table defines a set of key-value pairs (or map or hash) and each row defines a key in such a map.
This is similar to the usage of a [[!-MapFixture-!][MapFixtureTest#ddt]] as dynamic decisision table, only there each row is a map and the columns represent the keys.

The bottom row of the table should contain assignment(s) to Slim variables to store the maps.

!2 Single map created

We create a map consisting of two nested maps.

|table:map of maps fixture|
|     |NL  |EN            |
|dog  |Hond|Dog           |
|cat  |Kat |Cat           |
|$all=                    |

We check the top level map.

|script|map fixture|$all      |
|check |size of    |NL    |2  |
|check |size of    |EN    |2  |
|check |value      |EN.dog|Dog|

We can also have the header row be included in the nested maps.

|table:map of maps fixture|
|code |NL  |EN            |
|dog  |Hond|Dog           |
|cat  |Kat |Cat           |
|$all2=                   |

We check the top level map.

|script|map fixture|$all2      |
|check |size of    |NL     |3  |
|check |size of    |EN     |3  |
|check |value      |EN.dog |Dog|
|check |value      |EN.code|EN |


!2 Create map per column

We define two maps, and store these in separate variables.

|table:map of maps fixture|
|     |NL  |EN            |
|dog  |Hond|Dog           |
|cat  |Kat |Cat           |
|$all=|$nl=|$en=          |

We check the top level map.

|script|map fixture|$all      |
|check |size of    |NL    |2  |
|check |size of    |EN    |2  |
|check |value      |EN.dog|Dog|

We check each column's variable.

|script|map fixture|$nl     |
|check |value      |dog|Hond|
|check |value      |cat|Kat |

|script|map fixture|$en    |
|check |value      |dog|Dog|
|check |value      |cat|Cat|

!2 Nested maps

We define two maps, containing the values from the previous table. And we don't create a variable containing entire table.

|table  :map of maps fixture              |
|       |NL              |EN              |
|nested |$nl             |$en             |
|nested2|!{a:1, b:2}     |!{a:3, b:4}     |
|duck   |Eend            |Duck            |
|email  |Eend@example.com|Duck@example.com|
|       |$nl2=           |$en2=           |

We check each variable.

|script|map fixture|$nl2                           |
|check |value      |duck      |Eend                |
|check |value      |email     |!-Eend@example.com-!|
|check |value      |nested.cat|Kat                 |
|show  |value      |nested                         |
|check |value      |nested2.b |2                   |
|show  |value      |nested2                        |


|script|map fixture|$en2                           |
|check |value      |duck      |Duck                |
|check |value      |email     |!-Duck@example.com-!|
|check |value      |nested.cat|Cat                 |
|show  |value      |nested                         |
|check |value      |nested2.b |4                   |
|show  |value      |nested2                        |


We check each original variable did not change.

|script|map fixture|$nl     |
|check |value      |dog|Hond|
|check |value      |cat|Kat |

|script|map fixture|$en    |
|check |value      |dog|Dog|
|check |value      |cat|Cat|

!2 We can choose to use nested map notation

We define two maps, and store these in variables, the default notation is that periods indicate nested maps are to be used.

|table          :map of maps fixture|
|               |NL     |EN         |
|dog            |Hond   |Dog        |
|chicken.mouth  |Snavel |Beak       |
|chicken.legs[0]|Vleugel|Wing       |
|chicken.legs[1]|Poot   |Leg        |
|               |$nl3=  |$en3=      |

We check each variable.

|script|list fixture   |
|display lists standard|

|script|map fixture|$nl3                           |
|check |value      |dog            |Hond           |
|check |value      |chicken.legs   |[Vleugel, Poot]|
|check |value      |chicken.legs[0]|Vleugel        |
|check |value      |chicken.mouth  |Snavel         |
|show  |value      |chicken                        |

|script|map fixture|$en3                       |
|check |value      |dog            |Dog        |
|check |value      |chicken.legs   |[Wing, Leg]|
|check |value      |chicken.legs[0]|Wing       |
|check |value      |chicken.mouth  |Beak       |
|show  |value      |chicken                    |

!2 We can choose NOT to use nested map notation

We define two maps, and store these in variables, we override the default so that periods are just regular parts of a key.

|table          :map of maps fixture|false|
|               |NL                 |EN   |
|dog            |Hond               |Dog  |
|chicken.mouth  |Snavel             |Beak |
|chicken.legs[0]|Vleugel            |Wing |
|chicken.legs[1]|Poot               |Leg  |
|               |$nl4=              |$en4=|

We check each variable.

|script|map fixture|$nl4                   |
|check |value      |dog            |Hond   |
|check |value      |chicken.legs   |null   |
|check |value      |chicken.legs[0]|Vleugel|
|check |value      |chicken.mouth  |Snavel |
|check |value      |chicken        |null   |

|script|map fixture|$en4                |
|check |value      |dog            |Dog |
|check |value      |chicken.legs   |null|
|check |value      |chicken.legs[0]|Wing|
|check |value      |chicken.mouth  |Beak|
|check |value      |chicken        |null|