swift i18n

Author: eagleoflqj

.gitignore

@@ -3,3 +3,4 @@ build
 *.tar.bz2
 *.zip
 meta.swift
+assets/en.lproj/Localizable.strings

CMakeLists.txt

@@ -101,6 +101,8 @@ add_subdirectory(engines)
 
 fcitx5_get_addon_targets(COMMON_TARGETS iosnotifications fcitx5 iosfrontend uipanel)
 
+set(LOCALES en zh-Hans)
+list(TRANSFORM LOCALES APPEND ".lproj" OUTPUT_VARIABLE LPROJS)
 add_subdirectory(assets)
 add_subdirectory(common)
 add_subdirectory(keyboard)

assets/CMakeLists.txt

@@ -1,3 +1,4 @@
+# Icon
 add_custom_command(
     OUTPUT "${PROJECT_BINARY_DIR}/full-punc.png"
     COMMAND rsvg-convert "${CMAKE_CURRENT_SOURCE_DIR}/full-punc.svg" "-o" "${PROJECT_BINARY_DIR}/full-punc.png"
@@ -13,3 +14,21 @@ add_custom_target(png_images ALL
 )
 
 execute_process(COMMAND "${PROJECT_SOURCE_DIR}/scripts/generate-icons.sh")
+
+# I18n
+list(TRANSFORM LPROJS PREPEND "${CMAKE_CURRENT_SOURCE_DIR}/" OUTPUT_VARIABLE LPROJ_DIRS)
+list(TRANSFORM LPROJ_DIRS APPEND "/Localizable.strings" OUTPUT_VARIABLE LOCALIZABLE_STRINGS_FILES)
+
+file(GLOB_RECURSE LOCALIZABLE_SWIFT_SOURCES ${PROJECT_SOURCE_DIR}/src/*.swift)
+
+add_custom_command(
+    OUTPUT ${LOCALIZABLE_STRINGS_FILES}
+    COMMAND genstrings ${LOCALIZABLE_SWIFT_SOURCES} -SwiftUI -o ${CMAKE_CURRENT_SOURCE_DIR}/en.lproj
+    COMMAND ${PROJECT_SOURCE_DIR}/scripts/update_translations.py ${LOCALIZABLE_STRINGS_FILES}
+    DEPENDS ${LOCALIZABLE_SWIFT_SOURCES}
+    WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+    COMMENT "Generating Localizable.strings..."
+)
+add_custom_target(GenerateStrings
+    DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/en.lproj/Localizable.strings
+)

assets/zh-Hans.lproj/Localizable.strings

@@ -2,3 +2,8 @@ set -e
 
 find common src keyboard iosfrontend iosnotifications uipanel -name '*.cpp' -o -name '*.h' | xargs clang-format -Werror --dry-run
 swift-format lint -rs src keyboard iosfrontend iosnotifications uipanel protocol ipc
+
+localizables=$(find assets -name 'Localizable.strings')
+for localizable in $localizables; do
+  file $localizable | grep UTF-16
+done

scripts/lint.sh

@@ -0,0 +1,49 @@
+#!/usr/bin/env python3
+
+import sys
+import re
+
+
+COMMENT_RE = re.compile(r'^/\*')
+DATA_LINE_RE = re.compile(r'^"(.*)" = "(.*)";$')
+ENCODING = 'utf16'
+
+
+class TranslationFile:
+    def __init__(self, path: str):
+        self.path = path
+        self.table = {}
+        with open(path, 'r', encoding=ENCODING) as file:
+            for line in file:
+                m = re.match(DATA_LINE_RE, line)
+                if not m:
+                    continue
+                self.table[m.group(1)] = m.group(2)
+
+    def update_from(self, base: 'TranslationFile'):
+        with open(self.path, 'w', encoding=ENCODING) as out, open(base.path, 'r', encoding=ENCODING) as inp:
+            for line in inp:
+                if not line.strip():
+                    continue
+                m = re.match(COMMENT_RE, line)
+                if m:
+                    continue
+                m = re.match(DATA_LINE_RE, line)
+                if m:
+                    key = m.group(1)
+                    value = self.table.get(key, m.group(2))
+                    out.write(f'"{key}" = "{value}";\n')
+                else:
+                    out.write(line)
+
+
+if __name__ == '__main__':
+    if len(sys.argv) < 3:
+        print('USAGE: base.strings locale1.strings locale2.strings locale3.strings ...')
+        sys.exit(1)
+    print(f'base = {sys.argv[1]}')
+    base = TranslationFile(sys.argv[1])
+    for path in sys.argv[2:]:
+        print(f'updating {path}')
+        translated = TranslationFile(path)
+        translated.update_from(base)

scripts/update_translations.py

@@ -192,12 +192,15 @@ endforeach()
 generate_profile(App "." "${DEFAULT_INPUT_METHODS}")
 add_dependencies(${BUNDLE_NAME} AppProfile)
 
-# Copy icons and profile
+# Copy icons, profile and translations.
 set(ICON_FILES "AppIcon60x60@2x.png" "AppIcon76x76@2x~ipad.png" "Assets.car")
 foreach(ICON_FILE IN LISTS ICON_FILES)
     copy_to_app(copy "${PROJECT_SOURCE_DIR}/build/assets/actool_out/${ICON_FILE}" "${ICON_FILE}")
 endforeach()
 copy_to_app(copy "${PROJECT_BINARY_DIR}/profile" profile)
+foreach(LPROJ IN LISTS LPROJS)
+    copy_to_app(copy_directory "${PROJECT_SOURCE_DIR}/assets/${LPROJ}" "${LPROJ}")
+endforeach()
 
 fcitx5_import_addons(${BUNDLE_NAME}
     REGISTRY_VARNAME getStaticAddon

src/CMakeLists.txt

@@ -65,7 +65,8 @@ struct ContentView: View {
           }
         }
         Section {
-          ConfigLinkView(title: "Global Config", uri: globalConfigUri)
+          ConfigLinkView(
+            title: NSLocalizedString("Global Config", comment: ""), uri: globalConfigUri)
           NavigationLink(
             destination: AddonConfigView()
           ) {