Merge pull request #7235 from luadebug/case

add string case conversion functions: lower and upper

4 files changed, 161 insertions, 0 deletions

diff --git a/core/src/xmake/engine.c b/core/src/xmake/engine.c
index 532be1adc..d81828f1f 100644
--- a/core/src/xmake/engine.c
+++ b/core/src/xmake/engine.c
@@ -286,6 +286,8 @@ tb_int_t xm_string_lastof(lua_State *lua);
 tb_int_t xm_string_convert(lua_State *lua);
 tb_int_t xm_string_endswith(lua_State *lua);
 tb_int_t xm_string_startswith(lua_State *lua);
+tb_int_t xm_string_lower(lua_State *lua);
+tb_int_t xm_string_upper(lua_State *lua);
 
 // the process functions
 tb_int_t xm_process_open(lua_State *lua);
@@ -589,6 +591,8 @@ static luaL_Reg const g_string_functions[] = {
     { "convert", xm_string_convert },
     { "endswith", xm_string_endswith },
     { "startswith", xm_string_startswith },
+    { "lower", xm_string_lower },
+    { "upper", xm_string_upper },
     { tb_null, tb_null },
 };
 
diff --git a/core/src/xmake/string/lower.c b/core/src/xmake/string/lower.c
new file mode 100644
index 000000000..ef43f2385
--- /dev/null
+++ b/core/src/xmake/string/lower.c
@@ -0,0 +1,74 @@
+/*!A cross-platform build utility based on Lua
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Copyright (C) 2015-present, Xmake Open Source Community.
+ *
+ * @author      luadebug, ruki
+ * @file        lower.c
+ *
+ */
+
+/* //////////////////////////////////////////////////////////////////////////////////////
+ * includes
+ */
+#include "prefix.h"
+
+/* //////////////////////////////////////////////////////////////////////////////////////
+ * implementation
+ */
+
+/* string.lower
+ *
+ * @param str       the string
+ *
+ * @code
+ *      local result = string.lower(str)
+ * @endcode
+ */
+tb_int_t xm_string_lower(lua_State *lua) {
+    // check
+    tb_assert_and_check_return_val(lua, 0);
+
+    // get string
+    size_t           size = 0;
+    tb_char_t const* cstr = luaL_checklstring(lua, 1, &size);
+    tb_check_return_val(cstr, 0);
+
+    // empty?
+    if (!size) {
+        lua_pushstring(lua, "");
+        return 1;
+    }
+
+    // copy string to buffer
+    tb_char_t* buffer = (tb_char_t*)tb_malloc_bytes(size + 1);
+    if (buffer) {
+        tb_memcpy(buffer, cstr, size);
+        buffer[size] = '\0';
+
+        // to lower
+        tb_long_t real_size = tb_charset_utf8_tolower(buffer, size);
+        
+        // push result
+        if (real_size >= 0) {
+            lua_pushlstring(lua, buffer, real_size);
+        } else {
+            lua_pushlstring(lua, cstr, size);
+        }
+        tb_free(buffer);
+    } else {
+        lua_pushnil(lua);
+    }
+    return 1;
+}
diff --git a/core/src/xmake/string/upper.c b/core/src/xmake/string/upper.c
new file mode 100644
index 000000000..b9b71b349
--- /dev/null
+++ b/core/src/xmake/string/upper.c
@@ -0,0 +1,74 @@
+/*!A cross-platform build utility based on Lua
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Copyright (C) 2015-present, Xmake Open Source Community.
+ *
+ * @author      luadebug, ruki
+ * @file        upper.c
+ *
+ */
+
+/* //////////////////////////////////////////////////////////////////////////////////////
+ * includes
+ */
+#include "prefix.h"
+
+/* //////////////////////////////////////////////////////////////////////////////////////
+ * implementation
+ */
+
+/* string.upper
+ *
+ * @param str       the string
+ *
+ * @code
+ *      local result = (str)
+ * @endcode
+ */
+tb_int_t xm_string_upper(lua_State *lua) {
+    // check
+    tb_assert_and_check_return_val(lua, 0);
+
+    // get string
+    size_t           size = 0;
+    tb_char_t const* cstr = luaL_checklstring(lua, 1, &size);
+    tb_check_return_val(cstr, 0);
+
+    // empty?
+    if (!size) {
+        lua_pushstring(lua, "");
+        return 1;
+    }
+
+    // copy string to buffer
+    tb_char_t* buffer = (tb_char_t*)tb_malloc_bytes(size + 1);
+    if (buffer) {
+        tb_memcpy(buffer, cstr, size);
+        buffer[size] = '\0';
+
+        // to upper
+        tb_long_t real_size = tb_charset_utf8_toupper(buffer, size);
+        
+        // push result
+        if (real_size >= 0) {
+            lua_pushlstring(lua, buffer, real_size);
+        } else {
+            lua_pushlstring(lua, cstr, size);
+        }
+        tb_free(buffer);
+    } else {
+        lua_pushnil(lua);
+    }
+    return 1;
+}
diff --git a/tests/modules/string/test.lua b/tests/modules/string/test.lua
index 3f52dc593..94b3c1a04 100644
--- a/tests/modules/string/test.lua
+++ b/tests/modules/string/test.lua
@@ -106,3 +106,12 @@ function test_replace(t)
     t:are_equal(("123$xyz456xyz789xyz"):replace("123$", "000", {plain = true}), "000xyz456xyz789xyz")
     t:are_equal(("123xyz$456xyz$789xyz$"):replace("xyz$", "000", {plain = true}), "123000456000789000")
 end
+
+function test_case(t)
+    t:are_equal(("Hello"):lower(), "hello")
+    t:are_equal(("Hello"):upper(), "HELLO")
+    t:are_equal(("Звезда Хэнсин"):lower(), "звезда хэнсин")
+    t:are_equal(("Звезда Хэнсин"):upper(), "ЗВЕЗДА ХЭНСИН")
+    t:are_equal(("Test 源文件🎆 Message"):lower(), "test 源文件🎆 message")
+    t:are_equal(("Test 源文件🎆 Message"):upper(), "TEST 源文件🎆 MESSAGE")
+end