force use of geometry index for reverse polygon lookup

[nominatim.git] / lib-php / TokenSpecialTerm.php

diff --git a/lib-php/TokenSpecialTerm.php b/lib-php/TokenSpecialTerm.php
index 355dbb91aa32b6ad73af02a142e763559fe89583..475ae71ba184349242d20143a67538186a0535a6 100644 (file)
--- a/lib-php/TokenSpecialTerm.php
+++ b/lib-php/TokenSpecialTerm.php
@@ -1,4 +1,12 @@
 <?php
+/**
+ * SPDX-License-Identifier: GPL-2.0-only
+ *
+ * This file is part of Nominatim. (https://nominatim.org)
+ *
+ * Copyright (C) 2022 by the Nominatim developer community.
+ * For a full list of authors see the git log.
+ */
 
 namespace Nominatim\Token;
 
@@ -10,13 +18,13 @@ require_once(CONST_LibDir.'/SpecialSearchOperator.php');
 class SpecialTerm
 {
     /// Database word id, if applicable.
-    public $iId;
+    private $iId;
     /// Class (or OSM tag key) of the place to look for.
-    public $sClass;
+    private $sClass;
     /// Type (or OSM tag value) of the place to look for.
-    public $sType;
+    private $sType;
     /// Relationship of the operator to the object (see Operator class).
-    public $iOperator;
+    private $iOperator;
 
     public function __construct($iID, $sClass, $sType, $iOperator)
     {
@@ -44,7 +52,10 @@ class SpecialTerm
      */
     public function isExtendable($oSearch, $oPosition)
     {
-        return !$oSearch->hasOperator() && $oPosition->isPhrase('');
+        return !$oSearch->hasOperator()
+               && $oPosition->isPhrase('')
+               && ($this->iOperator != \Nominatim\Operator::NONE
+                  || (!$oSearch->hasAddress() && !$oSearch->hasHousenumber() && !$oSearch->hasCountry()));
     }
 
     /**
@@ -58,19 +69,31 @@ class SpecialTerm
      */
     public function extendSearch($oSearch, $oPosition)
     {
-        $iSearchCost = 2;
+        $iSearchCost = 0;
 
         $iOp = $this->iOperator;
         if ($iOp == \Nominatim\Operator::NONE) {
-            if ($oSearch->hasName() || $oSearch->getContext()->isBoundedSearch()) {
+            if ($oPosition->isFirstToken()
+                || $oSearch->hasName()
+                || $oSearch->getContext()->isBoundedSearch()
+            ) {
                 $iOp = \Nominatim\Operator::NAME;
+                $iSearchCost += 3;
             } else {
                 $iOp = \Nominatim\Operator::NEAR;
+                $iSearchCost += 4;
+                if (!$oPosition->isFirstToken()) {
+                    $iSearchCost += 3;
+                }
             }
+        } elseif ($oPosition->isFirstToken()) {
             $iSearchCost += 2;
-        } elseif (!$oPosition->isFirstToken() && !$oPosition->isLastToken()) {
-            $iSearchCost += 2;
+        } elseif ($oPosition->isLastToken()) {
+            $iSearchCost += 4;
+        } else {
+            $iSearchCost += 6;
         }
+
         if ($oSearch->hasHousenumber()) {
             $iSearchCost ++;
         }