### 2.2.86 Percent_repeat_engraver

Make whole measure repeats.

Music types accepted:

percent-event

Properties (read)

> `countPercentRepeats` (boolean)

>   If set, produce counters for percent repeats.

> `currentCommandColumn` (graphical (layout) object)

>   Grob that is X-parent to all current breakable (clef, key signature, etc.) items.

> `repeatCountVisibility` (procedure)

>   A procedure taking as arguments an integer and context, returning whether the corresponding percent repeat number should be printed when `countPercentRepeats` is set.

This engraver creates the following layout object(s):

PercentRepeat and PercentRepeatCounter.

`Percent_repeat_engraver` is part of the following context(s): CueVoice, DrumVoice, GregorianTranscriptionVoice, KievanVoice, MensuralVoice, PetrucciVoice, TabVoice, VaticanaVoice and Voice.

#### Internals Reference v2.18.2 (稳定分支).