From a6a48c196d3772c5f1dea0312b0788c50f5adcb1 Mon Sep 17 00:00:00 2001
From: h7x4 <h7x4@nani.wtf>
Date: Fri, 20 Jun 2025 23:10:10 +0200
Subject: [PATCH] word_search: filter input for FTS chars

---
 lib/search/word_search/entry_id_query.dart | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/lib/search/word_search/entry_id_query.dart b/lib/search/word_search/entry_id_query.dart
index 5f6c29b..20fbaae 100644
--- a/lib/search/word_search/entry_id_query.dart
+++ b/lib/search/word_search/entry_id_query.dart
@@ -27,6 +27,18 @@ SearchMode _determineSearchMode(String word) {
   }
 }
 
+/// FTS reacts to certain characters, so we should filter them out.
+String _filterFTSSensitiveCharacters(String word) {
+  return word
+      .replaceAll('-', '')
+      .replaceAll('*', '')
+      .replaceAll('+', '')
+      .replaceAll('(', '')
+      .replaceAll(')', '')
+      .replaceAll('^', '')
+      .replaceAll('\"', '');
+}
+
 (String, List<Object?>) _kanjiReadingTemplate(
   String tableName,
   String word, {
@@ -78,8 +90,8 @@ SearchMode _determineSearchMode(String word) {
       '''
           .trim(),
       [
-        word,
-        word,
+        _filterFTSSensitiveCharacters(word),
+        _filterFTSSensitiveCharacters(word),
         if (!countOnly) pageSize,
         word,
         if (!countOnly) pageSize,