Version stable, aprelic, connexion CFRS et autres corrections

includes/search_helpers copy.php

@@ -0,0 +1,65 @@
+<?php
+function has_cyrillic(string $s): bool {
+  return (bool) preg_match('/\p{Cyrillic}/u', $s);
+}
+
+function norm_key(string $s): string {
+  $s = mb_strtolower(trim($s), 'UTF-8');
+  $s = str_replace(['ё'], ['е'], $s);                // homogénéiser RU
+  $s = preg_replace('/[\'"’\-\s]+/u', '', $s);       // enlève tirets, espaces, quotes
+  return $s;
+}
+
+// Translittération simple RU -> latin (fallback si intl n’est pas dispo)
+function translit_ru_to_lat(string $s): string {
+  if (class_exists('Transliterator')) {
+    // "Russian-Latin/BGN" produit Parizh (Париж) -> "parizh"
+    $t = \Transliterator::create('Russian-Latin/BGN; Lower();');
+    if ($t) return $t->transliterate($s);
+  }
+  $map = [
+    'а'=>'a','б'=>'b','в'=>'v','г'=>'g','д'=>'d','е'=>'e','ё'=>'e','ж'=>'zh','з'=>'z','и'=>'i','й'=>'i','к'=>'k',
+    'л'=>'l','м'=>'m','н'=>'n','о'=>'o','п'=>'p','р'=>'r','с'=>'s','т'=>'t','у'=>'u','ф'=>'f','х'=>'kh','ц'=>'ts',
+    'ч'=>'ch','ш'=>'sh','щ'=>'shch','ъ'=>'','ы'=>'y','ь'=>'','э'=>'e','ю'=>'yu','я'=>'ya',
+  ];
+  $s = mb_strtolower($s, 'UTF-8');
+  return strtr($s, $map);
+}
+
+// Retourne une liste de candidats latins (pour LIKE) à partir d’une saisie q
+function city_query_candidates(string $q): array {
+  $q = trim($q);
+  if ($q === '') return [];
+
+  $cands = [];
+  $cands[] = mb_strtolower($q, 'UTF-8'); // saisie brute (si déjà latine)
+
+  // charger alias RU -> latin
+  $aliases = @include __DIR__ . '/city_aliases_ru.php';
+  if (!is_array($aliases)) $aliases = [];
+
+  if (has_cyrillic($q)) {
+    // 1) correspondance par préfixe dans les alias (ПАР → Paris)
+    $key = norm_key($q);
+    foreach ($aliases as $ru => $lat) {
+      if (strpos(norm_key($ru), $key) === 0) {
+        $cands[] = $lat;
+      }
+    }
+    // 2) translittération simple (Париж -> parizh)
+    $cands[] = translit_ru_to_lat($q);
+  }
+
+  // Normalisation légère des candidats (minuscules, accents retirés si possible)
+  $res = [];
+  foreach (array_unique($cands) as $c) {
+    $lc = mb_strtolower($c, 'UTF-8');
+    // enlever accents (si intl transliterator dispo)
+    if (class_exists('Transliterator')) {
+      $t = \Transliterator::create('Any-Latin; Latin-ASCII;');
+      if ($t) $lc = $t->transliterate($lc);
+    }
+    $res[] = $lc;
+  }
+  return array_values(array_unique($res));
+}