178d2d00ab
- Flutter app (Android/iOS): home, explore, albums, search, player with equalizer, mini player, sign up/sign in with email codes, profile, encrypted offline downloads, About page - server/: one-command deploy of self-hosted Supabase behind HestiaCP/nginx (or Caddy), migrations, backups, email templates - supabase/migrations: schema, row-level security, profiles - tools/: song scanner and importer Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
40 lines
1.3 KiB
Dart
40 lines
1.3 KiB
Dart
/// Badaga has no fixed Latin spelling ("Madhuvae" / "Madhuve", "Hethai" / "Hettai" / "Hethe").
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/// Both the query and the searchable text are folded to a common key before matching.
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/// Tamil-script text passes through unchanged (only lower-cased Latin is folded).
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String foldForSearch(String input) {
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var s = input.toLowerCase().replaceAll(RegExp(r"[^a-z0-9-ಀ- ]"), ' ');
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const digraphs = {
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'ae': 'e',
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'ee': 'i',
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'oo': 'u',
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'aa': 'a',
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'th': 't',
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'dh': 'd',
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'bh': 'b',
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'ph': 'p',
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'kh': 'k',
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'gh': 'g',
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'sh': 's',
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'zh': 'l',
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'w': 'v',
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};
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digraphs.forEach((from, to) => s = s.replaceAll(from, to));
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// Word-final "ai" and "e" are written interchangeably (Hethai / Hethe).
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s = s.replaceAllMapped(RegExp(r'ai\b'), (_) => 'e');
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// Collapse doubled letters: "hettai" -> "hetai", "madhuvve" -> "madhuve".
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s = s.replaceAllMapped(RegExp(r'([a-z])\1+'), (m) => m[1]!);
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return s.replaceAll(RegExp(r'\s+'), ' ').trim();
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}
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/// True when every word of [query] appears in at least one of [fields].
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bool matchesSearch(String query, Iterable<String?> fields) {
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final words = foldForSearch(query).split(' ').where((w) => w.isNotEmpty).toList();
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if (words.isEmpty) return false;
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final haystack = fields.whereType<String>().map(foldForSearch).join(' ');
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return words.every(haystack.contains);
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}
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