Added ? %

ziffers/classes.py

@@ -30,6 +30,10 @@ class Pitch(Event):
 class RandomPitch(Event):
     pc: int = None
 
+@dataclass
+class RandomPercent(Meta):
+    percent: float = None
+
 @dataclass
 class Chord(Event):
     pcs: list[Pitch] = None
@@ -63,7 +67,7 @@ class Cyclic(Sequence):
     cycle: int = 0
 
 @dataclass
-class RandomPitch(Meta):
+class RandomInteger(Meta):
     min: int
     max: int
 

ziffers/mapper.py

@@ -12,9 +12,9 @@ class ZiffersTransformer(Transformer):
         values = flatten(items[0].values)
         return Sequence(values=values,text="("+"".join([val.text for val in values])+")")
 
-    def randompitch(self,s):
+    def random_integer(self,s):
         val = s[0][1:-1].split(",")
-        return RandomPitch(min=val[0],max=val[1],text=s[0])
+        return RandomInteger(min=val[0],max=val[1],text=s[0])
 
     def range(self,s):
         val = s[0].split("..")
@@ -74,6 +74,12 @@ class ZiffersTransformer(Transformer):
         val["text"] = "<"+val["text"]+">"
         return val
 
+    def random_pitch(self,s):
+        return RandomPitch(text="?")
+
+    def random_percent(self,s):
+        return RandomPercent(text="%")
+
     def duration_chars(self,s):
         durations = [val[1] for val in s]
         characters = "".join([val[0] for val in s])

ziffers/ziffers.lark

@@ -1,12 +1,14 @@
     
     ?value: root      
-    root: (pc | dur_change | oct_mod | oct_change | WS | chord | cycle | randompitch | range | list | subdivision)*
+    root: (pc | dur_change | oct_mod | oct_change | WS | chord | cycle | random_integer | random_pitch | random_percent | range | list | subdivision)*
     list: "(" root ")"
-    randompitch: /\(-?[0-9],-?[0-9]\)/
+    random_integer: /\(-?[0-9]+,-?[0-9]+\)/
     range: /-?[0-9]\.\.-?[0-9]/
     cycle: "<" root ">"
     pc: prefix* pitch
     pitch: /-?[0-9TE]/
+    random_pitch: "?"
+    random_percent: "%"
     prefix: (octave | duration_chars | escaped_decimal | escaped_octave)
     oct_change: escaped_octave WS
     escaped_octave: /<-?[0-9]>/