BuboBubo/ziffers-python
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Added roman numerals

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This commit is contained in:
Miika Alonen
2023-02-07 21:04:48 +02:00
parent 1c4dfb99a0
commit 04d84bcc47
6 changed files with 93 additions and 27 deletions
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ziffers/ziffers.lark
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@ -1,6 +1,6 @@
// Root for the rules
?root: sequence -> start
sequence: (pitch_class | dur_change | oct_mod | oct_change | WS | chord | cycle | random_integer | random_pitch | random_percent | range | list | repeated_list | lisp_operation | list_op | subdivision | eval | euclid | repeat)*
sequence: (pitch_class | dur_change | oct_mod | oct_change | WS | chord | named_roman | cycle | random_integer | random_pitch | random_percent | range | list | repeated_list | lisp_operation | list_op | subdivision | eval | euclid | repeat)*
// Pitch classes
pitch_class: prefix* pitch
@ -12,6 +12,9 @@
// Chords
chord: pitch_class pitch_class+
named_roman: roman_number (("^" chord_name) | ("+" number))?
chord_name: /[a-zA-Z0-9]+/
?roman_number: /iv|v|v?i{1,3}/
// Valid as integer
?number: SIGNED_NUMBER | random_integer | cyclic_number