Trying out larl parser

ziffers/classes.py

@@ -0,0 +1,68 @@
+from dataclasses import dataclass, asdict
+
+@dataclass
+class Meta:
+    text: str
+
+@dataclass
+class Duration(Meta):
+    dur: float
+
+@dataclass
+class Octave(Meta):
+    oct: int
+
+@dataclass
+class Event(Meta):
+    dur: float = None
+
+@dataclass
+class Pitch(Event):
+    pc: int = None
+    dur: float = None
+    oct: int = None
+
+@dataclass
+class RandomPitch(Event):
+    pc: int = None
+    
+
+@dataclass
+class Chord(Event):
+    pcs: list[Pitch] = None
+    
+@dataclass
+class Function(Event):
+    run: str = None
+
+@dataclass
+class Ziffers:
+    values: list[Event]
+    dict = asdict
+    text: str = None
+    def __post_init__(self):
+        self.text = self.collect_text()
+    def collect_text(self):
+        return "".join([val.text for val in self.values])
+
+@dataclass
+class Sequence(Meta):
+    values: list[Event]
+
+@dataclass
+class Subdivision(Meta):
+    values: list[Event]
+
+@dataclass
+class Cyclic(Sequence):
+    cycle: int = 0
+
+@dataclass
+class RandomPitch(Meta):
+    min: int
+    max: int
+
+@dataclass
+class Range(Meta):
+    start: int
+    end: int