Fix wasm core spec 1.1 names test

platforms/app/main.c

@@ -156,8 +156,8 @@ void unescape(char* buff)
             case 't':  *outp++ = '\t'; break;
             case 'x': {
                 char hex[3] = { *(buff+2), *(buff+3), '\0' };
-                *outp++ = strtol(hex, NULL, 16);
-                buff += 2;
+                *outp = strtol(hex, NULL, 16);
+                buff += 2; outp += 1;
                 break;
             }
             // Otherwise just pass the letter
@@ -284,7 +284,7 @@ int  main  (int i_argc, const char* i_argv[])
 
     while (argRepl)
     {
-        char cmd_buff[1024] = { 0, };
+        char cmd_buff[2048] = { 0, };
         char* argv[32] = { 0, };
         fprintf(stdout, "wasm3> ");
         fflush(stdout);

test/run-spec-test.py

@@ -89,23 +89,14 @@ def binaryToFloat(num, t):
     else:
         fatal(f"Unknown type '{t}'")
 
-def escape(s):
-    c = ord(s)
-
-    if c < 128 and s.isprintable() and not s in " \n\r\t\\":
-        return s
-
-    if c <= 0xff:
-        return r'\x{0:02x}'.format(c)
-    elif c <= 0xffff:
-        return r'\u{0:04x}'.format(c)
-    else:
-        return r'\U{0:08x}'.format(c)
-
 def escape_str(s):
     if s == "":
         return r'\x00'
-    return ''.join(escape(c) for c in s)
+
+    if all((ord(c) < 128 and c.isprintable() and not c in " \n\r\t\\") for c in s):
+        return s
+
+    return '\\x' + '\\x'.join('{0:02x}'.format(x) for x in s.encode('utf-8'))
 
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