nota

source/engine/jsffi.c

@@ -162,9 +162,17 @@ JSValue js_getpropidx(JSValue v, uint32_t i)
 
 static inline cpBody *js2body(JSValue v) { return js2gameobject(v)->body; }
 
-uint64_t js2uint64(JSValue v) { return JS_VALUE_GET_INT(v); }
+uint64_t js2uint64(JSValue v) {
+  uint64_t i;
+  JS_ToInt64(js, &i, v);
+  return i;
+}
 
-int js2int(JSValue v) { return JS_VALUE_GET_INT(v); }
+int js2int(JSValue v) {
+  int i;
+  JS_ToInt32(js, &i, v);
+  return i;
+}
 
 JSValue int2js(int i) { return JS_NewInt64(js, i); }
 
@@ -227,49 +235,61 @@ int js_arrlen(JSValue v) {
 char *js_nota_decode(JSValue *tmp, char *nota)
 {
   int type = nota_type(nota);
-  JSValue ret;
   JSValue ret2;
   long long n;
   double d;
   int b;
-  
+  char *str;
-  char *str = NULL;
+
   switch(type) {
     case NOTA_BLOB:
       break;
     case NOTA_TEXT:
-      nota = nota_read_text(str, nota);
+      nota = nota_read_text(&str, nota);
       *tmp = str2js(str);
-      return nota;
+      break;
     case NOTA_ARR:
       nota = nota_read_array(&n, nota);
-      ret = JS_NewArray(js);
+      *tmp = JS_NewArray(js);
       for (int i = 0; i < n; i++) {
         nota = js_nota_decode(&ret2, nota);
-        JS_SetPropertyInt64(js, ret, i, ret2);
+        JS_SetPropertyInt64(js, *tmp, i, ret2);
       }
       break;
     case NOTA_REC:
+      nota = nota_read_record(&n, nota);
+      printf("nota object with %d elements\n", n);
+      *tmp = JS_NewObject(js);
+      for (int i = 0; i < n; i++) {
+
+        nota = nota_read_text(&str, nota);
+        printf("looking at property %d named %s\n", i, str);	
+	nota = js_nota_decode(&ret2, nota);
+	JS_SetPropertyStr(js, *tmp, str, ret2);
+      }
       break;
-    case NOTA_FLOAT:
-      nota = nota_read_float(&d, nota);
-      *tmp = number2js(d);
-      return nota;
     case NOTA_INT:
       nota = nota_read_int(&n, nota);
       *tmp = int2js(n);
-      return nota;
+      break;
     case NOTA_SYM:
       nota = nota_read_bool(&b, nota);
       *tmp = bool2js(b);
-      return nota;
+      break;
+    default:
+    case NOTA_FLOAT:
+      nota = nota_read_float(&d, nota);
+      *tmp = number2js(d);
+      break;
   }
+
+  return nota;
 }
 
 char *js_nota_encode(JSValue v, char *nota)
 {
   int tag = JS_VALUE_GET_TAG(v);
-  char *str;
+  char *str = NULL;
   JSPropertyEnum *ptab;
   uint32_t plen;
   int n;
@@ -277,28 +297,40 @@ char *js_nota_encode(JSValue v, char *nota)
   
   switch(tag) {
     case JS_TAG_FLOAT64:
+//      printf("encode float\n");
       return nota_write_float(JS_VALUE_GET_FLOAT64(v), nota);
     case JS_TAG_INT:
+//      printf("encode int\n");
       return nota_write_int(JS_VALUE_GET_INT(v), nota);
     case JS_TAG_STRING:
-      return nota_write_text(JS_VALUE_GET_PTR(v), nota);
+//      printf("encode string\n");
+      str = js2str(v);
+      nota = nota_write_text(str, nota);
+      JS_FreeCString(js, str);
+      return nota;
     case JS_TAG_BOOL:
+//      printf("encode bool\n");
       return nota_write_bool(JS_VALUE_GET_BOOL(v), nota);
     case JS_TAG_OBJECT:
       if (JS_IsArray(js, v)) {
+//        printf("encode array\n");
         int n = js_arrlen(v);
         nota = nota_write_array(n, nota);
         for (int i = 0; i < js_arrlen(v); i++)
           nota = js_nota_encode(js_arridx(v, i), nota);
         return nota;
       }
+//      printf("encode object\n");
       
       n = JS_GetOwnPropertyNames(js, &ptab, &plen, v, JS_GPN_ENUM_ONLY | JS_GPN_STRING_MASK);
       nota = nota_write_record(plen, nota);
       for (int i = 0; i < plen; i++) {
+        val = JS_GetProperty(js,v,ptab[i].atom);
+        if (JS_IsUndefined(val) || JS_IsNull(val)) continue;
         /* todo: slower than atomtocstring */
-        val = JS_AtomToString(js, ptab[i].atom);
+        str = JS_AtomToCString(js, ptab[i].atom);
-        nota = nota_write_text(JS_VALUE_GET_PTR(v), nota);
+//	printf("encoding object entry %s\n", str);
+        nota = nota_write_text(str, nota);
         nota = js_nota_encode(JS_GetProperty(js, v, ptab[i].atom), nota);
       }
       return nota;
@@ -492,7 +524,6 @@ struct rect js2rect(JSValue v) {
   return rect;
 }
 
-
 JSValue rect2js(struct rect rect) {
   JSValue obj = JS_NewObject(js);
   js_setprop_str(obj, "x", JS_NewFloat64(js, rect.x));
@@ -2012,16 +2043,16 @@ JSValue nota_encode(JSContext *js, JSValueConst this, int argc, JSValueConst *ar
   JSValue obj = argv[0];
   char nota[100000];
   char *e = js_nota_encode(obj, nota);
-  *e = 0;
+
-  
+  return JS_NewArrayBufferCopy(js, nota, e-nota);
-  return JS_NewStringLen(js, nota, e-nota);
 }
 
 JSValue nota_decode(JSContext *js, JSValueConst this, int argc, JSValueConst *argv)
 {
   if (argc < 1) return JS_UNDEFINED;
 
-  char *nota = js2str(argv[0]);
+  size_t len;
+  char *nota = JS_GetArrayBuffer(js, &len, argv[0]);
   JSValue ret;
   js_nota_decode(&ret, nota);
   return ret;

source/engine/nota.c

@@ -3,6 +3,7 @@
 #include "math.h"
 #include "string.h"
 #include "stdlib.h"
+#include "limits.h"
 
 #define NOTA_CONT 0x80
 #define NOTA_DATA 0x7f
@@ -31,18 +32,26 @@ char *nota_skip(char *nota)
   return nota+1;
 }
 
+char *nota_read_num(long long *n, char *nota)
+{
+  if (!n)
+    return nota_skip(nota);
+    
+  *n = 0;
+  *n |= (*nota) & NOTA_HEAD_DATA;
+  
+  while (CONTINUE(*(nota++)))
+    *n = (*n<<7) | (*nota) & NOTA_DATA;
+
+  return nota;
+}
+
 int nota_bits(long long n, int sb)
 {
-  int bits;
+  if (n == 0) return sb;
-  if (n == 0)
+  int bits = sizeof(n)*CHAR_BIT - __builtin_clzll(n);
-    bits = 0;
-  else
-    bits = ilogb(n)+1;
   bits-=sb; /* start bit */
-  int chars = bits/7;
+  return ((bits + 6) / 7)*7 + sb;
-  if (bits%7>0) chars++;
-  bits = sb + (chars*7);
-  return bits;
 }
 
 char *nota_continue_num(long long n, char *nota, int sb)
@@ -54,10 +63,10 @@ char *nota_continue_num(long long n, char *nota, int sb)
   else
     nota[0] &= ~NOTA_CONT;
 
-  int shex = ~0 << sb;
+  int shex = (~0) << sb;
   nota[0] &= shex; /* clear shex bits */
-  nota[0] |= ~shex & (n>>bits);
+  nota[0] |= (~shex) & (n>>bits);
-  
+
   int i = 1;
   while (bits > 0) {
     bits -= 7;
@@ -109,19 +118,6 @@ char *nota_write_int(long long n, char *nota)
   return nota_continue_num(n, nota, 3);
 }
 
-char *nota_read_num(long long *n, char *nota)
-{
-  if (!n)
-    return nota_skip(nota);
-    
-  *n = 0;
-  *n |= (*nota) & NOTA_HEAD_DATA;
-  
-  while (CONTINUE(*(nota++)))
-    *n = (*n<<7) | (*nota) & NOTA_DATA;
-
-  return nota;
-}
 
 #define NOTA_DBL_PREC 6
 #define xstr(s) str(s)
@@ -137,7 +133,7 @@ char *nota_write_float(double n, char *nota)
   char ns[2+NOTA_DBL_PREC+5];
   snprintf(ns, 2+NOTA_DBL_PREC+5, "%." xstr (NOTA_DBL_PREC) "e", n);
 
-  int e = atoi(&ns[2+NOTA_DBL_PREC+1]);
+  long long e = atoll(&ns[2+NOTA_DBL_PREC+1]);
   ns[2+NOTA_DBL_PREC] = 0;
 
   char *z = ns + 1 + NOTA_DBL_PREC;
@@ -160,15 +156,13 @@ char *nota_write_float(double n, char *nota)
   nota[0] = NOTA_FLOAT;
   nota[0] |= 0x10 & expsign;
   nota[0] |= 0x08 & sign;
-  
-  char *c = nota_continue_num(e, nota, 3);
 
+  char *c = nota_continue_num(e, nota, 3);
   return nota_continue_num(sig, c, 7);
 }
 
 char *nota_read_float(double *d, char *nota)
 {
-  print_nota_hex(nota);
   long long sig = 0;
   long long e = 0;
 
@@ -182,17 +176,15 @@ char *nota_read_float(double *d, char *nota)
   
   c++;
 
-  sig = (*c) & NOTA_DATA;
+  do 
-  while (CONTINUE(*c)) {
     sig = (sig<<7) | *c & NOTA_DATA;
-    c++;
+  while (CONTINUE(*(c++)));
-  }
 
   if (NOTA_SIG_SIGN(*nota)) sig *= -1;
   if (NOTA_EXP_SIGN(*nota)) e *= -1;
 
   *d = (double)sig * pow(10.0, e);
-  return nota;
+  return c;
 }
 
 char *nota_read_int(long long *n, char *nota)
@@ -200,14 +192,15 @@ char *nota_read_int(long long *n, char *nota)
   if (!n)
     return nota_skip(nota);
 
+  *n = 0;
   char *c = nota;
   *n |= (*c) & NOTA_INT_DATA; /* first three bits */
   while (CONTINUE(*(c++)))
     *n = (*n<<7) | (*c) & NOTA_DATA;
 
   if (NOTA_INT_SIGN(*nota)) *n *= -1;
-  
+
-  return c+1;
+  return c;
 }
 
 /* n is the number of bits */
@@ -310,13 +303,7 @@ void encode_kim(char **s, char *end, int code)
     return;
   }
   
-  int bits = 32 - __builtin_clz(code);
+  int bits = ((32 - __builtin_clz(code) + 6) / 7) * 7;
-  if (bits <= 7)
-    bits = 7;
-  else if (bits <= 14)
-    bits = 14;
-  else
-    bits = 21;
 
   while (bits > 7) {
     bits -= 7;
@@ -339,10 +326,12 @@ int decode_kim(char **s)
   return rune;
 }
 
-void utf8_to_kim(char *utf, char *kim)
+char *utf8_to_kim(char *utf, char *kim)
 {
   while (*utf)
     encode_kim(&kim, NULL, decode_utf8(&utf));
+
+  return kim;
 }
 
 void kim_to_utf8(char *kim, char *utf, int runes)
@@ -353,21 +342,20 @@ void kim_to_utf8(char *kim, char *utf, int runes)
   *utf = 0;
 }
 
-char *nota_read_text(char *text, char *nota)
+char *nota_read_text(char **text, char *nota)
 {
   long long chars;
   nota = nota_read_num(&chars, nota);
   char utf[chars*4];
   kim_to_utf8(nota, utf, chars);
-  text = strdup(utf);
+  *text = strdup(utf);
   return nota;
 }
 
 char *nota_write_bool(int b, char *nota)
 {
   *nota = NOTA_SYM | (b ? NOTA_TRUE : NOTA_FALSE);
-  nota++;
+  return nota+1;
-  return nota;
 }
 
 char *nota_read_bool(int *b, char *nota)
@@ -382,7 +370,6 @@ char *nota_write_text(char *s, char *nota)
   nota[0] = NOTA_TEXT;
   long long n = utf8_count(s);
   nota = nota_continue_num(n,nota,4);
-  utf8_to_kim(s, nota);
+  return utf8_to_kim(s, nota);
-  return nota+n;
 }
 

source/engine/nota.h

@@ -9,17 +9,21 @@
 #define NOTA_INT 0x60
 #define NOTA_SYM 0x70
 
+typedef struct NOTA {
+  char *head;
+} NOTA;
+
 int nota_type(char *nota);
 
 char *nota_read_blob(long long *len, char *nota);
-char *nota_read_text(char *text, char *nota);
+char *nota_read_text(char **text, char *nota);
 char *nota_read_array(long long *len, char *nota);
 char *nota_read_record(long long *len, char *nota);
 char *nota_read_float(double *d, char *nota);
 char *nota_read_int(long long *l, char *nota);
 char *nota_read_bool(int *b, char *nota);
 
-char *nota_read_num(long long *n, char *nota);
+void print_nota_hex(char *nota);
 
 char *nota_write_blob(unsigned long long n, char *nota);
 char *nota_write_text(char *s, char *nota);

source/engine/yugine.c

@@ -11,7 +11,6 @@
 #include <stdio.h>
 #include "particle.h"
 #include "simplex.h"
-#include "nota.h"
 
 #include "datastream.h"