updates

Backend/venv/lib/python3.12/site-packages/nltk/tree/parsing.py

@@ -0,0 +1,66 @@
+# Natural Language Toolkit: Text Trees
+#
+# Copyright (C) 2001-2025 NLTK Project
+# Author: Edward Loper <edloper@gmail.com>
+#         Steven Bird <stevenbird1@gmail.com>
+#         Peter Ljunglöf <peter.ljunglof@gu.se>
+#         Tom Aarsen <>
+# URL: <https://www.nltk.org/>
+# For license information, see LICENSE.TXT
+
+import re
+
+from nltk.tree.tree import Tree
+
+######################################################################
+## Parsing
+######################################################################
+
+
+def bracket_parse(s):
+    """
+    Use Tree.read(s, remove_empty_top_bracketing=True) instead.
+    """
+    raise NameError("Use Tree.read(s, remove_empty_top_bracketing=True) instead.")
+
+
+def sinica_parse(s):
+    """
+    Parse a Sinica Treebank string and return a tree.  Trees are represented as nested brackettings,
+    as shown in the following example (X represents a Chinese character):
+    S(goal:NP(Head:Nep:XX)|theme:NP(Head:Nhaa:X)|quantity:Dab:X|Head:VL2:X)#0(PERIODCATEGORY)
+
+    :return: A tree corresponding to the string representation.
+    :rtype: Tree
+    :param s: The string to be converted
+    :type s: str
+    """
+    tokens = re.split(r"([()| ])", s)
+    for i in range(len(tokens)):
+        if tokens[i] == "(":
+            tokens[i - 1], tokens[i] = (
+                tokens[i],
+                tokens[i - 1],
+            )  # pull nonterminal inside parens
+        elif ":" in tokens[i]:
+            fields = tokens[i].split(":")
+            if len(fields) == 2:  # non-terminal
+                tokens[i] = fields[1]
+            else:
+                tokens[i] = "(" + fields[-2] + " " + fields[-1] + ")"
+        elif tokens[i] == "|":
+            tokens[i] = ""
+
+    treebank_string = " ".join(tokens)
+    return Tree.fromstring(treebank_string, remove_empty_top_bracketing=True)
+
+
+#    s = re.sub(r'^#[^\s]*\s', '', s)  # remove leading identifier
+#    s = re.sub(r'\w+:', '', s)       # remove role tags
+
+#    return s
+
+__all__ = [
+    "bracket_parse",
+    "sinica_parse",
+]