chore: import upstream snapshot with attribution

2026-07-13 13:25:10 +08:00
commit c397331b1e
3684 changed files with 990993 additions and 0 deletions
@@ -0,0 +1,46 @@
+import pynini
+from fun_text_processing.text_normalization.en.graph_utils import (
+    DAMO_NOT_QUOTE,
+    GraphFst,
+    delete_space,
+)
+from pynini.lib import pynutil
+
+
+class DecimalFst(GraphFst):
+    """
+    Finite state transducer for verbalizing decimal, e.g.
+        tokens { decimal { integer_part: "одно целая" fractional_part: "восемь сотых} } ->
+            "одно целая восемь сотых"
+
+    Args:
+        deterministic: if True will provide a single transduction option,
+            for False multiple transduction are generated (used for audio-based normalization)
+    """
+
+    def __init__(self, deterministic: bool = True):
+        super().__init__(name="decimal", kind="verbalize", deterministic=deterministic)
+
+        optional_sign = pynini.closure(pynini.cross('negative: "true" ', "минус "), 0, 1)
+        integer = pynutil.delete(' "') + pynini.closure(DAMO_NOT_QUOTE, 1) + pynutil.delete('"')
+        integer_part = pynutil.delete("integer_part:") + integer
+        fractional_part = pynutil.delete("fractional_part:") + integer
+        optional_quantity_part = pynini.closure(
+            pynini.accep(" ")
+            + pynutil.delete('quantity: "')
+            + pynini.closure(DAMO_NOT_QUOTE, 1)
+            + pynutil.delete('"'),
+            0,
+            1,
+        )
+
+        self.graph = (
+            optional_sign
+            + integer_part
+            + pynini.accep(" ")
+            + fractional_part
+            + optional_quantity_part
+            + delete_space
+        )
+        delete_tokens = self.delete_tokens(self.graph)
+        self.fst = delete_tokens.optimize()