parsing: also accept short ingredients without amounts

for example 'oil' will now be allowed, previously it would have to be `1
spoon oil` when sometimes people don't know the amount

comfyrecipes/parsing.py

@@ -197,23 +197,24 @@ class IngredientInstance(Element):
     def from_dict(cls, ctx: Context, dct: str | Dict[str, Any]) -> Self:
         if isinstance(dct, str):
             string = dct.strip()
-            p = re.compile(r"^(?:([0-9\.]+) ([a-zA-Z]+) )?([\w ]+)(?: \((.*)\))?$")
+            p = re.compile(r"^(?:([0-9\.]+) ([a-zA-Z]+) )+([\w ]+)(?: \((.*)\))?$")
             match = p.match(string)
-            if match is None:
-                raise RuntimeError(
-                    "ingredient {string} regex not matched, it should be in the format [amount(num) unit(string, one word)] name(string, any number of words) [(note(string))]"
-                )
-            amount = float(match.group(1))
-            unitstr = match.group(2)
+
+            amount = float(1)
             unit = ctx.default_unit
-            if unit is not None:
-                unitx = ctx.units.get(unitstr)
-                if unitx is None:
-                    ctx.issues.error(issues.ISSUE_UNKNOWN_UNIT, "unknown unit {unitstr}")
-                else:
-                    unit = unitx
-            name = match.group(3)
-            note = match.group(4)
+            name = string
+            note = None
+            if match is not None:
+                amount = float(match.group(1))
+                unitstr = match.group(2)
+                if unit is not None:
+                    unitx = ctx.units.get(unitstr)
+                    if unitx is None:
+                        ctx.issues.error(issues.ISSUE_UNKNOWN_UNIT, f"unknown unit {unitstr}")
+                    else:
+                        unit = unitx
+                name = match.group(3)
+                note = match.group(4)
             if note is None:
                 note = ""
             return cls(