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Added range evaluation and more operators

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This commit is contained in:
Miika Alonen
2023-02-21 19:48:37 +02:00
parent e9c0731d7e
commit 973d3eab2b
4 changed files with 18 additions and 4 deletions
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6
ziffers/spec/ziffers.lark
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@ -43,7 +43,7 @@
// Right recursive list operation
list_op: list (operator right_op)+
right_op: list | number
operator: /([\+\-\*\/%]|<<|>>)/
operator: /([\+\-\*\/%\|\&]|<<|>>)/
// Euclidean cycles
// TODO: Support randomization etc.
@ -56,7 +56,7 @@
// Subdivision
subdivision: "[" subitems "]"
subitems: (pitch_class | random_integer | random_pitch | rest | oct_mod | oct_change | WS | chord | named_roman | cycle | subdivision | list | list_op)*
subitems: (pitch_class | random_integer | random_pitch | rest | oct_mod | oct_change | WS | chord | named_roman | cycle | subdivision | list | list_op | range)*
// Control characters modifying future events
oct_mod: octave WS
@ -67,7 +67,7 @@
// Generative rules
random_integer: /\(-?[0-9]+,-?[0-9]+\)/
range: /-?[0-9]\.\.-?[0-9]/
range: /-?[0-9]+\.\.-?[0-9]+/
cycle: "<" sequence ">"
random_pitch: /(\?)(?!\d)/
random_percent: /(%)(?!\d)/