!squash wip lets see

src/unihan_etl/validator.py

@@ -0,0 +1,60 @@
+import typing as t
+
+import pydantic
+
+from unihan_etl.expansion import expand_kTGHZ2013
+
+
+class UCNBaseModel(pydantic.BaseModel):
+    """Core model for UCN data."""
+
+    ucn: str
+
+
+class kTGHZ2013Location(pydantic.BaseModel):
+    """Core model for location."""
+
+    page: int
+    position: int
+    # 0 for a main entry and greater than 0 for a parenthesized or bracketed variant #
+    # of the main entry
+    entry_type: int
+
+
+class kTGHZ2013(UCNBaseModel):
+    """kTGHZ2013 model."""
+
+    reading: str
+    locations: list[kTGHZ2013Location]
+
+    model_config = pydantic.ConfigDict(validate_assignment=True)
+
+    @pydantic.model_validator(mode="before")
+    @classmethod
+    def from_raw(cls, raw: str) -> "kTGHZ2013":
+        pass
+        if len(raw) == 1:
+            ucn, field, val = raw[0].split("\t")
+            print(ucn, field, val)
+
+            return cls(ucn=ucn, **expand_kTGHZ2013([val]))
+
+    def __init__(self, *args, **kwargs) -> None:
+        if args:
+            if len(args) == 1:
+                ucn, field, val = args[0].split("\t")
+                print(ucn, field, val)
+
+                return super().__init__(ucn=ucn, **expand_kTGHZ2013([val]))
+
+            if len(args) > 1:
+                raise ValueError(
+                    "If a position argument is used, only 1 is allowed to set `actual_instance`"
+                )
+            if kwargs:
+                raise ValueError(
+                    "If a position argument is used, keyword arguments cannot be used."
+                )
+            super().__init__(actual_instance=args[0])
+        else:
+            super().__init__(**kwargs)

tests/test_validator.py

@@ -0,0 +1,15 @@
+"""Test expansion of multi-value fields in UNIHAN."""
+import typing as t
+
+import pytest
+
+from unihan_etl import constants, validator
+
+if t.TYPE_CHECKING:
+    from typing_extensions import TypeAlias
+
+
+def test_kTGHZ2013() -> None:
+    # model = validator.kTGHZ2013("U+3447	kTGHZ2013	482.140:zhòu")
+    model = validator.kTGHZ2013.from_raw("U+3447	kTGHZ2013	482.140:zhòu")
+    assert model == "U+3447"