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/*!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 ruki
* @file args.c
*
*/
/* //////////////////////////////////////////////////////////////////////////////////////
* trace
*/
#define TB_TRACE_MODULE_NAME "os.args"
#define TB_TRACE_MODULE_DEBUG (0)
/* //////////////////////////////////////////////////////////////////////////////////////
* includes
*/
#include "prefix.h"
/* //////////////////////////////////////////////////////////////////////////////////////
* private implementation
*/
static tb_void_t tb_os_args_append(
tb_string_ref_t result, tb_char_t const *cstr, tb_size_t size, tb_bool_t escape, tb_bool_t nowrap) {
tb_assert_and_check_return(size < TB_PATH_MAXN);
// need wrap quote?
tb_char_t ch;
tb_char_t const *p = cstr;
tb_bool_t wrap_quote = tb_false;
if (!nowrap) {
while ((ch = *p)) {
if (ch == ' ') {
wrap_quote = tb_true;
}
p++;
}
}
// wrap begin quote
if (wrap_quote) {
tb_string_chrcat(result, '\"');
}
// escape characters
p = cstr;
while ((ch = *p)) {
// escape '"' or '\\'
if (ch == '\"' || ((escape || wrap_quote) && ch == '\\')) {
tb_string_chrcat(result, '\\');
}
tb_string_chrcat(result, ch);
p++;
}
// wrap end quote
if (wrap_quote) {
tb_string_chrcat(result, '\"');
}
}
/* //////////////////////////////////////////////////////////////////////////////////////
* implementation
*/
// os.args({"xx", "yy"}, {escape = true})
tb_int_t xm_os_args(lua_State *lua) {
tb_assert_and_check_return_val(lua, 0);
// escape '\\' characters in global?
tb_bool_t escape = tb_false;
if (lua_istable(lua, 2)) {
// is escape?
lua_pushstring(lua, "escape");
lua_gettable(lua, 2);
escape = lua_toboolean(lua, -1);
lua_pop(lua, 1);
}
// disable to wrap quote characters in global?
tb_bool_t nowrap = tb_false;
if (lua_istable(lua, 2)) {
// is nowrap?
lua_pushstring(lua, "nowrap");
lua_gettable(lua, 2);
nowrap = lua_toboolean(lua, -1);
lua_pop(lua, 1);
}
// init result
tb_string_t result;
tb_string_init(&result);
// make string from arguments list
if (lua_istable(lua, 1)) {
tb_size_t i = 0;
tb_size_t n = (tb_size_t)lua_objlen(lua, 1);
for (i = 1; i <= n; i++) {
// add space
if (i != 1) {
tb_string_chrcat(&result, ' ');
}
// add argument
lua_pushnumber(lua, (tb_int_t)i);
lua_rawget(lua, 1);
if (lua_istable(lua, -1)) { // is path instance?
lua_pushstring(lua, "_STR");
lua_gettable(lua, -2);
size_t size = 0;
tb_char_t const *cstr = luaL_checklstring(lua, -1, &size);
if (cstr && size) {
tb_os_args_append(&result, cstr, size, escape, nowrap);
}
lua_pop(lua, 1);
} else {
size_t size = 0;
tb_char_t const *cstr = luaL_checklstring(lua, -1, &size);
if (cstr && size) {
tb_os_args_append(&result, cstr, size, escape, nowrap);
}
}
lua_pop(lua, 1);
}
} else {
size_t size = 0;
tb_char_t const *cstr = luaL_checklstring(lua, 1, &size);
if (cstr && size) {
tb_os_args_append(&result, cstr, size, escape, nowrap);
}
}
// return result
tb_size_t size = tb_string_size(&result);
if (size) {
lua_pushlstring(lua, tb_string_cstr(&result), size);
} else {
lua_pushliteral(lua, "");
}
tb_string_exit(&result);
return 1;
}
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