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 +1,41 @@
+import pynini
+from fun_text_processing.text_normalization.en.graph_utils import (
+    DAMO_NOT_QUOTE,
+    GraphFst,
+    delete_extra_space,
+    delete_preserve_order,
+)
+from pynini.lib import pynutil
+
+
+class MeasureFst(GraphFst):
+    """
+    Finite state transducer for verbalizing measure, e.g.
+        measure { cardinal { integer: "zwei" units: "unzen" } } -> "zwei unzen"
+        measure { cardinal { integer_part: "zwei" quantity: "millionen" units: "unzen" } } -> "zwei millionen unzen"
+
+    Args:
+        decimal: decimal GraphFst
+        cardinal: cardinal GraphFst
+        fraction: fraction GraphFst
+        deterministic: if True will provide a single transduction option,
+            for False multiple transduction are generated (used for audio-based normalization)
+    """
+
+    def __init__(
+        self, decimal: GraphFst, cardinal: GraphFst, fraction: GraphFst, deterministic: bool
+    ):
+        super().__init__(name="measure", kind="verbalize", deterministic=deterministic)
+        unit = pynutil.delete('units: "') + pynini.closure(DAMO_NOT_QUOTE) + pynutil.delete('"')
+
+        graph_decimal = decimal.fst
+        graph_cardinal = cardinal.fst
+        graph_fraction = fraction.fst
+
+        graph = (graph_cardinal | graph_decimal | graph_fraction) + pynini.accep(" ") + unit
+
+        graph |= unit + delete_extra_space + (graph_cardinal | graph_decimal)
+        graph += delete_preserve_order
+
+        delete_tokens = self.delete_tokens(graph)
+        self.fst = delete_tokens.optimize()