• New in : SPIP 2.0

The|xou filter [1] is used to check the existence of only one single element out of 2 possibles.


[(#CHAPO|xou{#PS}) Either there is a stand-first, or a post-scriptum, but never both]
[(#CHAPO|xou{#PS}|non) There can be neither stand-first nor post-scriptum, or there can be both at the same time]

See also the |et and |ou filters.

See also

Other logical filters

test filters


[1This can also be written as |xor

Author Mark Published : Updated : 18/07/23

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