Catalog I18N support

Read I18N satrings form aircraft data and add to the catalog

catalog/testData/Aircraft/f16/f16a-set.xml

@@ -7,6 +7,17 @@
 
     <primary-set type="bool">true</primary-set>
     
+
+    <localized>
+      <de>
+        <long-description>Describe the F16-A in German</long-description>
+      </de>
+      
+      <fr>
+              <long-description>Describe the F16-A in French</long-description>
+      </fr>
+    </localized>
+
     <rating>
       <FDM type="int">3</FDM>
       <systems type="int">1</systems>

catalog/testData/Aircraft/f16/f16b-set.xml

@@ -6,6 +6,16 @@
     <long-description>The F16-B is an upgraded version of the F16A.</long-description>
     <variant-of>f16a</variant-of>
 
+    <localized>
+      <de>
+        <long-description>Describe the F16-B in German</long-description>
+      </de>
+      
+      <fr>
+              <long-description>Describe the F16-B in French</long-description>
+      </fr>
+    </localized>
+
     <authors n="0">
       <author n="0">
         <name>James T Kirk</name>

catalog/test_catalog.py

@@ -40,6 +40,9 @@ class UpdateCatalogTests(unittest.TestCase):
         self.assertEqual(authors.getValue('author[0]/email'), 'ww@wright.com')
         self.assertEqual(authors.getValue('author[1]/name'), 'Orville Wright')
 
+        locDe = info['localized']['de']
+        self.assertEqual(locDe["long-description"], "Describe the F16-A in German")
+
 
     def test_scan_dir(self):
         (pkg, variants) = catalog.scan_aircraft_dir("testData/Aircraft/f16", ["testData/OtherDir"])
@@ -60,6 +63,9 @@ class UpdateCatalogTests(unittest.TestCase):
         self.assertEqual(f16b['variant-of'], 'f16a')
         self.assertEqual(f16b['primary-set'], False)
 
+        locFr = f16b['localized']['fr']
+        self.assertEqual(locFr["long-description"], "Describe the F16-B in French")
+
         authorsArray = f16b['authors']
         self.assertNotIn('author', f16b)
 
@@ -135,8 +141,9 @@ class UpdateCatalogTests(unittest.TestCase):
         self.assertEqual(parsedPkgNode.getValue('rating/cockpit'), 2)
         self.assertEqual(parsedPkgNode.getValue('rating/model'), 5)
 
+        self.assertEqual(parsedPkgNode.getValue('localized/de/long-description'), "Describe the F16-A in German")
 
-# author data verification
+        # author data verification
         self.assertFalse(parsedPkgNode.hasChild('author'));
         parsedAuthors = parsedPkgNode.getChild("authors").getChildren('author')
 
@@ -172,6 +179,9 @@ class UpdateCatalogTests(unittest.TestCase):
                 self.assertEqual(author1.getValue("email"), "shatner@enterprise.com")
                 self.assertEqual(author1.getValue("description"), "Everything")
 
+                self.assertEqual(pv.getValue('localized/de/long-description'), "Describe the F16-B in German")
+
+
     def test_node_creation2(self):
         (pkg, variants) = catalog.scan_aircraft_dir("testData/Aircraft/dc3", ["testData/OtherDir"])
 

python3-flightgear/flightgear/meta/aircraft_catalogs/catalog.py

@@ -11,7 +11,7 @@ import re
 import sys
 import zipfile
 
-from flightgear.meta import sgprops
+from flightgear.meta import sgprops, strutils
 from . import catalogTags
 
 CATALOG_VERSION = 4
@@ -113,9 +113,13 @@ def scan_set_file(aircraft_dir, set_file, includes):
     if sim_node.hasChild('minimum-fg-version'):
         variant['minimum-fg-version'] = sim_node.getValue('minimum-fg-version', None)
 
+    if sim_node.hasChild('localized'):
+        variant['localized'] = extract_localized_strings(sim_node.getChild('localized'))
+
     #print("    %s" % variant)
     return variant
 
+
 def extract_previews(previews_node, aircraft_dir):
     result = []
     for node in previews_node.getChildren("preview"):
@@ -131,6 +135,7 @@ def extract_previews(previews_node, aircraft_dir):
 
     return result
 
+
 def extract_tags(tags_node, set_path):
     result = []
     for node in tags_node.getChildren("tag"):
@@ -142,6 +147,22 @@ def extract_tags(tags_node, set_path):
 
     return result
 
+
+def extract_localized_strings(localized_node):
+    result = {}
+    # iterate langauges below <localized>
+    for lang in localized_node.getChildren():
+        strings = {}
+
+        # iterate strings below <de> etc
+        for s in lang.getChildren():
+            strings[s.name] = strutils.simplify(s.value)
+
+        if strings:
+            result[lang.name] = strings
+
+    return result
+
 # scan all the -set.xml files in an aircraft directory.  Returns a
 # package dict and a list of variants.
 def scan_aircraft_dir(aircraft_dir, includes):
@@ -199,6 +220,7 @@ def make_xml_leaf(name, text):
         leaf.text = ''
     return leaf
 
+
 def append_preview_nodes(node, variant, download_base, package_name):
     if not 'previews' in variant:
         return
@@ -211,6 +233,7 @@ def append_preview_nodes(node, variant, download_base, package_name):
         preview_node.append( make_xml_leaf('path', preview['path']) )
         node.append(preview_node)
 
+
 def append_tag_nodes(node, variant):
     if not 'tags' in variant:
         return
@@ -218,6 +241,7 @@ def append_tag_nodes(node, variant):
     for tag in variant['tags']:
         node.append(make_xml_leaf('tag', tag))
 
+
 def append_author_nodes(node, info):
     if 'authors' in info:
         node.append(info['authors']._createXMLElement())
@@ -225,6 +249,22 @@ def append_author_nodes(node, info):
         # traditional single author string
         node.append( make_xml_leaf('author', info['author']) )
 
+
+def append_localized_strings(node, variant):
+    if not 'localized' in variant:
+        return
+
+    localized_node = ET.Element('localized')
+    for lang, v in variant['localized'].items():
+        lang_node = ET.Element(lang)
+        for skey, s in v.items():
+            lang_node.append(make_xml_leaf(skey, s))
+
+        localized_node.append(lang_node) 
+
+    node.append(localized_node)
+
+
 def make_aircraft_node(aircraftDirName, package, variants, downloadBase, mirrors):
     #print("package: %s" % package)
     #print("variants: %s" % variants)
@@ -271,6 +311,7 @@ def make_aircraft_node(aircraftDirName, package, variants, downloadBase, mirrors
         append_preview_nodes(variant_node, variant, downloadBase, aircraftDirName)
         append_tag_nodes(variant_node, variant)
         append_author_nodes(variant_node, variant)
+        append_localized_strings(variant_node, variant)
 
     package_node.append( make_xml_leaf('dir', aircraftDirName) )
 
@@ -290,6 +331,7 @@ def make_aircraft_node(aircraftDirName, package, variants, downloadBase, mirrors
 
     append_preview_nodes(package_node, package, downloadBase, aircraftDirName)
     append_tag_nodes(package_node, package)
+    append_localized_strings(package_node, package)
 
     if 'maintainers' in package:
         package_node.append(package['maintainers']._createXMLElement())