📝 delete system call in test files

src/main.cpp

@@ -38,9 +38,6 @@ std::ostream& help(std::ostream& out) {
     << "     ,--#-,\n"
     << "<3  / \\____\\  <3\n"
     << "    |_|__A_|\n"
-#ifdef _WIN32
-    << "use command <chcp 65001> to use unicode.\n"
-#endif
     << "\nnasal <option>\n"
     << "option:\n"
     << "   -h,   --help     | get help.\n"

test/ascii-art.nas

@@ -1,7 +1,7 @@
 use std.padding;
 use std.process_bar;
-use std.os;
 use std.unix;
+use std.runtime;
 
 var char_ttf=[
     ["    ","    ","    ","    ","    ","    "],
@@ -196,9 +196,7 @@ var ansi_escape_sequence = func() {
 }
 
 # enable unicode
-if (os.platform()=="windows") {
-    system("chcp 65001");
-}
+runtime.windows.set_utf8_output();
 
 trans_ttf("just for test");
 trans_ttf(" ValKmjolnir ");

test/coroutine.nas

@@ -4,9 +4,10 @@ use std.coroutine;
 use std.process_bar;
 use std.padding;
 use std.os;
+use std.runtime;
 
 if (os.platform()=="windows") {
-    system("chcp 65001");
+    runtime.windows.set_utf8_output();
     system("color");
 }
 

test/filesystem.nas

@@ -1,4 +1,4 @@
-use std.os;
+use std.runtime;
 use std.io;
 use std.unix;
 
@@ -35,7 +35,7 @@ var prt = func(s,path) {
 }
 
 # enable unicode
-if (os.platform()=="windows")
-    system("chcp 65001");
+runtime.windows.set_utf8_output();
+
 println("\e[33m[",unix.getcwd(),"]\e[36m>\e[0m");
 prt([""],".");

test/md5compare.nas

@@ -1,7 +1,7 @@
 use test.md5_self;
 use std.process_bar;
 use std.file;
-use std.os;
+use std.runtime;
 use std.io;
 use std.math;
 
@@ -101,8 +101,6 @@ var randomchecksum = func() {
     }
 }
 
-if (os.platform()=="windows") {
-    system("chcp 65001");
-}
+runtime.windows.set_utf8_output();
 filechecksum();
 randomchecksum();

test/occupation.nas

@@ -11,7 +11,7 @@ var is_windows_platform=os.platform()=="windows";
 var is_macos_platform=os.platform()=="macOS";
 
 if (is_windows_platform) {
-    system("chcp 65001");
+    runtime.windows.set_utf8_output();
 }
 
 var cpu_stat = func() {

test/qrcode.nas

@@ -1,4 +1,5 @@
-use std.os;
+use std.runtime;
+
 var code=[
     [1,1,1,1,1,1,1,0,1,0,0,1,1,0,1,0,1,0,1,1,0,0,1,1,1,1,1,1,1],
     [1,0,0,0,0,0,1,0,0,1,1,0,0,1,0,0,0,1,1,1,1,0,1,0,0,0,0,0,1],
@@ -32,8 +33,7 @@ var code=[
 ];
 
 # enable unicode
-if (os.platform()=="windows")
-    system("chcp 65001");
+runtime.windows.set_utf8_output();
 var texture=["  ","██"];
 for(var i=0;i<size(code);i+=1) {
     for(var j=0;j<size(code[i]);j+=1)

test/snake.nas

@@ -2,7 +2,6 @@ use module.libkey;
 use std.list;
 use std.runtime;
 use std.coroutine;
-use std.os;
 use std.unix;
 
 var game = func(x,y) {
@@ -130,8 +129,7 @@ var co=coroutine.create(func() {
 var main = func(argv) {
     var should_skip=(size(argv)!=0 and argv[0]=="--skip");
     # enable unicode
-    if (os.platform()=="windows")
-        system("chcp 65001");
+    runtime.windows.set_utf8_output();
     print("\ec");
 
     var g=game(15,10);

test/tetris.nas

@@ -1,6 +1,5 @@
 use module.libkey;
 use std.runtime;
-use std.os;
 use std.unix;
 
 var color=[
@@ -277,9 +276,9 @@ var mapgen = func(mapx,mapy) {
 var main = func(argv) {
     var should_skip=(size(argv)!=0 and argv[0]=="--skip");
     var init_counter=should_skip?5:30;
-    # windows use chcp 65001 to output unicode
-    if (os.platform()=="windows")
-        system("chcp 65001");
+
+    # windows use 65001 to output unicode
+    runtime.windows.set_utf8_output();
     
     print(
         "\ec\e[1:1H",

test/wavecollapse.nas

@@ -1,6 +1,6 @@
 # wave collapse function 2022/4/10
 # by ValKmjolnir
-use std.os;
+use std.runtime;
 
 srand();
 var table=[
@@ -96,8 +96,7 @@ var map = func() {
 }();
 
 # enable unicode
-if (os.platform()=="windows")
-    system("chcp 65001");
+runtime.windows.set_utf8_output();
 map.new(90);
 
 for(var iter=0;iter<40;iter+=1) {