BuboBubo/ziffers-python
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Added euclid parsing support

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This commit is contained in:
Miika Alonen
2023-02-04 17:17:14 +02:00
parent 63b292a7bd
commit 6597ca3f17
4 changed files with 42 additions and 7 deletions
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ziffers/ziffers.lark
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@ -1,6 +1,6 @@
// Root for the rules
?root: sequence
sequence: (pc | dur_change | oct_mod | oct_change | WS | chord | cycle | random_integer | random_pitch | random_percent | range | list | lisp_operation | list_op | subdivision | eval)*
sequence: (pc | dur_change | oct_mod | oct_change | WS | chord | cycle | random_integer | random_pitch | random_percent | range | list | lisp_operation | list_op | subdivision | eval | euclid)*
// Pitch classes
pc: prefix* pitch
@ -13,14 +13,22 @@
// Chords
chord: pc pc+
// Valid as integer
?number: SIGNED_NUMBER | random_integer
// List
list: prefix* "(" sequence ")"
// Right recursive list operation
list_op: list (operator (list | number))+
operator: /([\+\-\*\/%]|<<|>>)/
?number: SIGNED_NUMBER
euclid: list euclid_operator list?
?euclid_operator: /<[0-9]+,[0-9]+(,[0-9])?>/
// TODO: Support randomization etc.
//euclid_operator: (">" | "<") number "," number ["," number] (">" | "<")
// Lisp like list operation
lisp_operation: "(" operator WS sequence ")"
@ -51,7 +59,7 @@
// TODO: Support for parenthesis?
eval: "{" operation "}"
operation: atom (operator atom)+
atom: (SIGNED_NUMBER | DECIMAL | random_integer)
atom: (number | DECIMAL)
%import common.NUMBER
%import common.SIGNED_NUMBER