Added euclid parsing support

main.py

@@ -24,7 +24,7 @@ if __name__ == "__main__":
             'Loop cycles (for zloop or z0-z9)': "<0 <1 <2 <3 <4 5>>>>>",
             'Basic operations': "(1 2 (3 4)+2)*2 ((1 2 3)+(0 9 13))-2 ((3 4 {10})*(2 9 3))%7",
             'Product operations': "(0 1 2 3)+(1 4 2 3) (0 1 2)-(0 2 1)+2",
-            'Euclid cycles': "(q1)<6,7>(q4 (e3 e4) q2) or (q1)<6,7<(q4 q3 q2)",
+            'Euclid cycles': "(q1)<6,7>(q4 (e3 e4) q2) (q1)<6,7>(q4 q3 q2)",
             'Transformations': "(0 1 2)<r> (0 1 2)<i>(-2 1)",
             'List assignation': "A=(0 (1,6) 3) B=(3 ? 2) B A B B A",
             'Random repeat': "(: 1 (2,6) 3 :4)",

ziffers/classes.py

@@ -202,3 +202,12 @@ class Atom(Item):
 class Integer(Item):
     ''' Class for integers '''
     value: int
+
+@dataclass
+class Euclid(Item):
+    ''' Class for euclidean cycles '''
+    pulses: int
+    length: int
+    onset: list
+    offset: list = None
+    rotate: int = None

ziffers/mapper.py

@@ -11,7 +11,7 @@ class ZiffersTransformer(Transformer):
 
     def random_integer(self,s):
         val = s[0][1:-1].split(",")
-        return RandomInteger(min=val[0],max=val[1],text=s[0])
+        return RandomInteger(min=val[0],max=val[1],text=s[0].value)
 
     def range(self,s):
         val = s[0].split("..")
@@ -136,6 +136,9 @@ class ZiffersTransformer(Transformer):
         val = s.value
         return Integer(text=val,value=int(val))
 
+    def number(self,s):
+        return s
+
     def lisp_operation(self,s):
         op = s[0]
         values = s[1:]
@@ -150,3 +153,18 @@ class ZiffersTransformer(Transformer):
 
     def list_op(self,s):
         return ListOperation(values=s)
+
+    def euclid(self,s):
+        params = s[1][1:-1].split(",")
+        init = {"onset":s[0],"pulses":params[0],"length":params[1]}
+        text = s[0].text+s[1]
+        if len(params)>2:
+            init["rotate"] = params[2]
+        if len(s)>2:
+            init["offset"] = s[2]
+            text = text+s[2].text
+        init["text"] = text
+        return Euclid(**init)
+
+    def euclid_operator(self,s):
+        return s.value

ziffers/ziffers.lark

@@ -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
@@ -13,13 +13,21 @@
     // 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