🚀 add new native function `char`

lib.nas

@@ -183,6 +183,12 @@ var chr=func(code){
     return __chr(code);
 }
 
+# char will give you the real character of ascii-number
+# instead of extend-ascii when number between 128~256
+var char=func(code){
+    return __char(code);
+}
+
 # mut is used to change unmutable strings to mutable.
 var mut=func(str){
     return str~"";

nasal_builtin.h

@@ -534,6 +534,11 @@ var builtin_chr(var* local,gc& ngc)
     return ngc.newstr(" ");
 }
 
+var builtin_char(var* local,gc& ngc)
+{
+    return ngc.newstr((char)local[1].num());
+}
+
 var builtin_values(var* local,gc& ngc)
 {
     var hash=local[1];
@@ -1262,6 +1267,7 @@ struct
     {"__right",   builtin_right   },
     {"__cmp",     builtin_cmp     },
     {"__chr",     builtin_chr     },
+    {"__char",    builtin_char    },
     {"__values",  builtin_values  },
     {"__exists",  builtin_exists  },
     {"__open",    builtin_open    },

stl/lib.nas

@@ -183,6 +183,12 @@ var chr=func(code){
     return __chr(code);
 }
 
+# char will give you the real character of ascii-number
+# instead of extend-ascii when number between 128~256
+var char=func(code){
+    return __char(code);
+}
+
 # mut is used to change unmutable strings to mutable.
 var mut=func(str){
     return str~"";

test/console3D.nas

@@ -26,7 +26,7 @@ import.module.libmat;
 func(){
     # allocate more spaces
     var t=[];
-    for(var i=0;i<2048;i+=1)
+    for(var i=0;i<16384;i+=1)
         append(t,[],[],[],str(i));
     t=[];
 }();

test/occupation.nas

@@ -1,7 +1,11 @@
 import.stl.process_bar;
 import.module.libkey;
 
+var is_windows_platform=os.platform()=="windows";
+
 var cpu_stat=func(){
+    if(is_windows_platform)
+        return nil;
     var cpu=split("\n",io.fin("/proc/stat"))[0];
     cpu=split(" ",cpu);
     cpu={
@@ -18,13 +22,23 @@ var cpu_stat=func(){
 }
 
 var cpu_occupation=func(){
+    var first_in=1;
     while(1){
         var cpu0=cpu_stat();
-        for(var i=0;i<5;i+=1){
+        if(first_in){
             unix.sleep(0.1);
-            coroutine.yield(nil);
+            first_in=0;
+        }else{
+            for(var i=0;i<10;i+=1){
+                unix.sleep(0.1);
+                coroutine.yield(nil);
+            }
         }
         var cpu1=cpu_stat();
+        if(is_windows_platform){
+            coroutine.yield(0);
+            continue;
+        }
         var t0=cpu0.user+cpu0.nice+cpu0.system+cpu0.idle+cpu0.iowait+cpu0.irq+cpu0.softirq;
         var t1=cpu1.user+cpu1.nice+cpu1.system+cpu1.idle+cpu1.iowait+cpu1.irq+cpu1.softirq;
         var interval=cpu1.idle-cpu0.idle;
@@ -33,6 +47,8 @@ var cpu_occupation=func(){
 }
 
 var mem_occupation=func(){
+    if(is_windows_platform)
+        return {MemTotal:math.inf,MemFree:math.inf};
     var meminfo=split("\n",io.fin("/proc/meminfo"));
     var mem_res={};
     forindex(var i;meminfo){
@@ -44,26 +60,27 @@ var mem_occupation=func(){
 }
 
 func(){
-    if(os.platform()=="windows"){
-        println("haven't supported yet.");
-        return;
-    }
     var co=coroutine.create(cpu_occupation);
     var bar=process_bar.high_resolution_bar(30);
     print("\ec");
     while(1){
         var mem=mem_occupation();
         var mem_occ=(mem.MemTotal-mem.MemFree)/mem.MemTotal*100;
+        if(math.isnan(mem_occ) or mem_occ<0 or mem_occ>100){
+            mem_occ=0;
+        }
         var cpu_occ=nil;
         while((cpu_occ=coroutine.resume(co)[0])==nil){
             var key=libkey.nonblock();
             if(key!=nil and chr(key)=="q")
                 return;
         }
-        println("\e[1;1H\e[1m Memory total(GB)    : \e[0m\e[36m",mem.MemTotal/1024/1024,"\e[0m");
-        println("\e[2;1H\e[1m Memory free(GB)     : \e[0m\e[36m",mem.MemFree/1024/1024,"\e[0m");
-        println("\e[3;1H\e[1m Memory occupation(%): \e[0m",mem_occ>60?"\e[91m":"\e[32m",bar.bar(mem_occ/100)~" ",mem_occ,"\e[0m         ");
-        println("\e[4;1H\e[1m CPU occupation(%)   : \e[0m",cpu_occ>90?"\e[91m":"\e[32m",bar.bar(cpu_occ/100)~" ",cpu_occ,"\e[0m         ");
-        println("\e[5;1H Press 'q' to quit.");
+        println("\e[1;1H\e[1m Operating system    : \e[0m",is_windows_platform?"\e[31m":"\e[36m",os.platform(),"\e[0m");
+        println("\e[2;1H\e[1m Current time        : \e[0m\e[36m",os.time(),"\e[0m");
+        println("\e[3;1H\e[1m Memory total(GB)    : \e[0m\e[36m",mem.MemTotal/1024/1024,"\e[0m");
+        println("\e[4;1H\e[1m Memory free(GB)     : \e[0m\e[36m",mem.MemFree/1024/1024,"\e[0m");
+        println("\e[5;1H\e[1m Memory occupation(%): \e[0m",mem_occ>60?"\e[91m":"\e[32m",bar.bar(mem_occ/100)~" ",mem_occ,"\e[0m         ");
+        println("\e[6;1H\e[1m CPU occupation(%)   : \e[0m",cpu_occ>90?"\e[91m":"\e[32m",bar.bar(cpu_occ/100)~" ",cpu_occ,"\e[0m         ");
+        println("\e[7;1H Press 'q' to quit.");
     }
 }();

test/utf8chk.nas

@@ -8,6 +8,7 @@ var unicode测试=func(){
     foreach(var 内容;测试成功)
         输出(内容~"\n");
 }
+
 var emoji测试=func(){
     var 💻=print;
     var 🎤="\n";
@@ -45,5 +46,27 @@ var emoji测试=func(){
     foreach(var 📄;keys(🗄️))
         💻(📄,🗄️[📄],🎤);
 }
+
+var dotsgen=func(){
+    var dots=[];
+    var s="⠀";
+    for(var i=0;i<256;i+=1){
+        var v0=s[0];
+        var v1=s[1]+int(i/64);
+        var v2=s[2]+i;
+        if(v2>191){
+            v2-=int(i/64)*64;
+        }
+        var tmp=char(v0)~char(v1)~char(v2);
+        append(dots,tmp);
+    }
+
+    forindex(var i;dots){
+        print(dots[i],(i+1-int((i+1)/32)*32==0)?"\n":"");
+    }
+    return dots;
+};
+
 unicode测试();
-emoji测试();
+emoji测试();
+dotsgen();