WIP: Build Rust version of libchewing

Signed-off-by: Hui-Hong You <hiroshi@ghostsinthelab.org>

Author: hiroshiyui

README.md

@@ -6,6 +6,14 @@ The libchewingAndroidAppModule is a byproduct of the [Guileless Bopomofo](https:
 
 libchewingAndroidAppModule 是[樸實注音鍵盤](https://github.com/hiroshiyui/GuilelessBopomofo)專案的副產品，將[新酷音函式庫](https://github.com/chewing/libchewing)打包為 Android App Module (AAR) 格式，透過模組化途徑方便開發與元件再利用。
 
+# Prerequisites for Rust targets 編譯 Rust 程式碼的必備項目
+
+* [rustup](https://rustup.rs/) - installer for the systems programming language Rust
+* `rustup target add aarch64-linux-android`
+* `rustup target add armv7-linux-androideabi`
+* `rustup target add i686-linux-android`
+* `rustup target add x86_64-linux-android`
+
 # Build 組建
 
 1. `git clone --recursive https://github.com/hiroshiyui/libchewingAndroidAppModule.git`

app/build.gradle.kts

@@ -79,11 +79,11 @@ android {
 
     tasks.register<Exec>("prepareChewing") {
         workingDir(chewingLibraryPath)
-        commandLine("cmake", "--preset", "c99-release", "-DBUILD_SHARED_LIBS=OFF", ".")
+        commandLine("cmake", "--preset", "rust-release", "-DBUILD_SHARED_LIBS=OFF", ".")
     }
 
     val chewingDataFiles =
-        listOf<String>("dictionary.dat", "index_tree.dat", "pinyin.tab", "swkb.dat", "symbols.dat")
+        listOf<String>("tsi.dat", "word.dat", "pinyin.tab", "swkb.dat", "symbols.dat")
 
     tasks.register<Exec>("buildChewingData") {
         dependsOn("prepareChewing")

app/src/main/cpp/CMakeLists.txt

@@ -14,8 +14,8 @@ project("libchewing_android_app_module" LANGUAGES C CXX)
 
 # Import libchewing here:
 SET(BUILD_INFO true)
-SET(WITH_RUST false)
-SET(WITH_SQLITE3 true)
+SET(WITH_RUST true)
+SET(WITH_SQLITE3 false)
 SET(BUILD_SHARED_LIBS OFF)
 add_subdirectory(${CMAKE_SOURCE_DIR}/libs/libchewing EXCLUDE_FROM_ALL)