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4.93 - [eq] Built-In

Mnemonic aid: eq for EQual to zero content

See also:  [ne] 

If value is empty, the conditionalContent will be emitted. The style is only evaluated if value is empty. sep defaults to the comma.

Note: Please see  [even]  to learn how styles work with this operation.

conditionalContent is generated either way; the only difference is whether it appears in the output stream or not.

To avoid generating any content, put the sep character and nothing else.

[eq (sep=X,)(style=styleName,)contentXconditionalContent]

1 [eq stuff,not empty][eq ,empty]
2 [eq sep=|,stuff|not empty][eq sep=|,|empty]
3 [eq ,empty][eq stuff,not empty]
4 [eq sep=|,|empty][eq sep=|,stuff|not empty]
5 [eq ,][eq stuff,not empty]
6 [eq sep=|,|][eq sep=|,stuff|not empty]

1 empty
2 empty
3 empty
4 empty
1 empty 2 empty 3 empty 4 empty 5 6

Other built-ins used here:  [ne] 

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