via deparse function

diff --git a/json.tcl b/json.tcl
index 659c152..7b0e3c0 100644 (file)
--- a/json.tcl
+++ b/json.tcl
@@ -39,7 +39,7 @@ namespace eval ten::json {
       indent_one
       foreach el [lrange $args 0 end] {
         append out $nl$indent
-        append out [ eval $el ],
+        append out [ deparse $el ],
       }
       outdent_one
       append out $nl$indent\]
@@ -52,18 +52,19 @@ namespace eval ten::json {
       set out \{
       indent_one
       dict for {k v} $args {
-        append out $nl$indent[ str $k ]:\ [ eval $v ],
+        append out $nl$indent[ str $k ]:\ [ deparse $v ],
       }
       outdent_one
       append out $nl$indent\}
     }
 
-    proc deparse {args} {
-      switch -regexp [lindex $args 0] {
-        ^num|str|obj|list$ -
-        default { error "Invalid JSON type [lindex $args 0]" }
+    proc deparse {data} {
+      switch -regexp [lindex $data 0] {
+        ^true|false|null$ { uplevel 1 return [lindex $data 0] }
+        ^num|str|obj|list$ {}
+        default { error [ concat "Invalid JSON type " [lindex $data 0 0] ] }
       }
-      return [ eval $args ]
+      return [ eval $data ]
     }
   }
 
@@ -80,5 +81,5 @@ namespace eval ten::json {
 }
 
 puts [ ten::json::deparse_json {
-  list {str foo} {num 0} {obj __remote_object__ {str 512}}
-} 0 ]
+  list {str foo} {num 0} {obj __remote_object__ {str 512}} {null}
+} 2 ]