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uploaded speller.py for automatic spelling updates in searches and uses algorithms and sql.

Author: VictoriaRaven

spelling.py

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+#Multilingual spell-checking auto for searches only if online lanuage correct avalible.
+#Supports: English-French-Spanish-Portuguese-Italian-Dutch-German-Polish-Russian ONLY
+from functools import lru_cache
+import re
+from typing import Any, Optional
+from language_tool_python.utils import correct
+try:
+    import language_tool_python as lt
+    from language_tool_python import utils
+    LANGUAGE_TOOL_AVAILABLE = True
+except Exception:
+    LANGUAGE_TOOL_AVAILABLE = False
+    lt = None
+    utils = None
+
+#Supports: ONLY Ukrainian via SymSpell
+# Optional Ukrainian fallback (SymSpell)
+try:
+    from symspellpy import SymSpell, Verbosity
+    SYM_AVAILABLE = True
+except Exception:
+    SYM_AVAILABLE = False
+
+# Detect Ukrainian letters
+UKRAINIAN_CHARS = re.compile(r"[іІїЇєЄґҐ]")
+
+# Build minimal SymSpell for Ukrainian ONLY if installed
+sym_uk = None
+if SYM_AVAILABLE:
+    sym_uk = SymSpell(max_dictionary_edit_distance=2, prefix_length=7)
+    # minimal tiny dictionary
+    base_uk = [
+        "привіт", "слово", "текст", "книга",
+        "переклад", "мова", "будинок", "вікно"
+    ]
+    for w in base_uk:
+        sym_uk.create_dictionary_entry(w, 5)
+
+class SpellChecker:
+    """
+    Wraps LanguageTool with caching and safe fallbacks.
+    Supports languages auto with 'multilingual' mode.
+    """
+
+    def __init__(self):
+        if LANGUAGE_TOOL_AVAILABLE:
+            try:
+                # Load ONCE → slow the first time, fast after
+                self.tool = lt.LanguageTool("multilingual")
+            except Exception:
+                self.tool = None
+        else:
+            self.tool = None
+
+    @lru_cache(maxsize=500)
+    def correct(self, text: str) -> str:
+        """Return corrected text, cached for speed."""
+        if not text or not self.tool:
+            return text
+
+        try:
+            matches = self.tool.check(text)
+            if not matches:
+                return text
+            return utils.correct(text, matches) if utils else text
+        except Exception:
+            # If LanguageTool fails → return original text
+            return text
+
+
+# GLOBAL instance so admin.py doesn't reload it each time
+SPELL_CHECKER = SpellChecker()
+
+
+def auto_correct(text: str) -> str:
+    """
+    Public helper function for admin.py
+    """
+    return SPELL_CHECKER.correct(text)