add support for whitespace after the number in constructions like [foo:bar: 0.5 ] and (foo : 0.5 )

Author: Robert Barron

modules/prompt_parser.py

@@ -19,7 +19,7 @@
 !emphasized: "(" prompt ")"
         | "(" prompt ":" prompt ")"
         | "[" prompt "]"
-scheduled: "[" [prompt ":"] prompt ":" [WHITESPACE] NUMBER "]"
+scheduled: "[" [prompt ":"] prompt ":" [WHITESPACE] NUMBER [WHITESPACE] "]"
 alternate: "[" prompt ("|" prompt)+ "]"
 WHITESPACE: /\s+/
 plain: /([^\\\[\]():|]|\\.)+/
@@ -60,11 +60,11 @@ def collect_steps(steps, tree):
 
         class CollectSteps(lark.Visitor):
             def scheduled(self, tree):
-                tree.children[-1] = float(tree.children[-1])
-                if tree.children[-1] < 1:
-                    tree.children[-1] *= steps
-                tree.children[-1] = min(steps, int(tree.children[-1]))
-                res.append(tree.children[-1])
+                tree.children[-2] = float(tree.children[-2])
+                if tree.children[-2] < 1:
+                    tree.children[-2] *= steps
+                tree.children[-2] = min(steps, int(tree.children[-2]))
+                res.append(tree.children[-2])
 
             def alternate(self, tree):
                 res.extend(range(1, steps+1))
@@ -75,7 +75,7 @@ def alternate(self, tree):
     def at_step(step, tree):
         class AtStep(lark.Transformer):
             def scheduled(self, args):
-                before, after, _, when = args
+                before, after, _, when, _ = args
                 yield before or () if step <= when else after
             def alternate(self, args):
                 yield next(args[(step - 1)%len(args)])
@@ -333,7 +333,7 @@ def reconstruct_multicond_batch(c: MulticondLearnedConditioning, current_step):
 \\|
 \(|
 \[|
-:([+-]?[.\d]+)\)|
+:\s*([+-]?[.\d]+)\s*\)|
 \)|
 ]|
 [^\\()\[\]:]+|