add cangjie binding (#117)

cangjie/README.md

@@ -0,0 +1,14 @@
+## ruapu cangjie
+
+当前代码仓颉版本： `0.51.4`
+
+> 仓颉目前处于内测阶段，不保证该代码在更新的仓颉编译器版本中可用
+
+```bash
+cd cangjie
+cd c-src
+cmake .
+make
+cd ..
+cjpm run
+```

cangjie/c-src/CMakeLists.txt

@@ -0,0 +1,10 @@
+cmake_minimum_required(VERSION 3.5)
+
+project(ruapu)
+
+include_directories(../../)
+
+
+add_library(ruapu 
+    ruapu-binding.c
+)

cangjie/c-src/ruapu-binding.c

@@ -0,0 +1,14 @@
+#define RUAPU_IMPLEMENTATION
+#include "ruapu.h"
+
+void ruapu_init_c() {
+    ruapu_init();
+}
+
+int ruapu_supports_c(const char* isa) {
+    return ruapu_supports(isa);
+}
+
+const char* const* ruapu_rua_c() {
+    return ruapu_rua();
+}

cangjie/cjpm.toml

@@ -0,0 +1,16 @@
+[dependencies]
+
+[package]
+  cjc-version = "0.51.4"
+  compile-option = ""
+  description = "ruapu"
+  link-option = ""
+  name = "ruapu_cangjie"
+  output-type = "executable"
+  src-dir = ""
+  target-dir = ""
+  version = "1.0.0"
+  package-configuration = {}
+
+[ffi.c]
+  ruapu = { path = "./c-src/" }

cangjie/src/main.cj

@@ -0,0 +1,11 @@
+import ruapu.*
+main(): Int64 {
+    ruapu_init()
+    let neon_supported = ruapu_supports("neon")
+    println("supports neon: ${neon_supported}") 
+    let d = ruapu_rua()
+    for (i in d) {
+        println(i)
+    }
+    return 0
+}

cangjie/src/ruapu/ruapu.cj

@@ -0,0 +1,30 @@
+package ruapu
+
+from std import collection.ArrayList
+
+foreign func ruapu_init_c(): Unit
+
+foreign func ruapu_supports_c(s: CString): Int32
+
+foreign func ruapu_rua_c(): CPointer<CString>
+
+public func ruapu_init(): Unit {
+    unsafe{ ruapu_init_c() }
+}
+
+public func ruapu_supports(isa: String): Bool {
+    var isa_c = unsafe { LibC.mallocCString(isa) }
+    let result_c = unsafe { ruapu_supports_c(isa_c) }
+    return result_c == 1
+}
+
+public func ruapu_rua(): Array<String> {
+    var ruaList = ArrayList<String>()
+    var sp = unsafe { ruapu_rua_c() }
+    while(!unsafe { sp.read().isNull() }) {
+        let temp = unsafe { sp.read() }
+        ruaList.append(temp.toString())
+        sp = unsafe { sp + 1 }
+    }
+    return Array<String>(ruaList)
+}