factor out remote_object method

[scpubgit/TenDotTcl.git] / json.tcl

diff --git a/json.tcl b/json.tcl
index 4b8c13a..1acd13f 100644 (file)
--- a/json.tcl
+++ b/json.tcl
@@ -32,6 +32,13 @@ namespace eval ten::json {
       return $num
     }
 
+    proc decomma {str} {
+      switch [string index $str end] {
+        , { string range $str 0 end-1 }
+        default { return $str }
+      }
+    }
+
     proc list {args} {
       variable indent
       variable nl
@@ -41,6 +48,7 @@ namespace eval ten::json {
         append out $nl$indent
         append out [ deparse $el ],
       }
+      set out [ decomma $out ]
       outdent_one
       append out $nl$indent\]
       return $out
@@ -54,14 +62,15 @@ namespace eval ten::json {
       dict for {k v} $args {
         append out $nl$indent[ str $k ]:\ [ deparse $v ],
       }
+      set out [ decomma $out ]
       outdent_one
       append out $nl$indent\}
     }
 
     proc deparse {data} {
       switch -regexp [lindex $data 0] {
-        ^true|false|null$  { lindex $data 0 }
-        ^num|str|obj|list$ { eval $data }
+        ^(true|false|null)$  { lindex $data 0 }
+        ^(num|str|obj|list)$ { eval $data }
         default { error [ concat "Invalid JSON type " [lindex $data 0 0] ] }
       }
     }
@@ -90,8 +99,8 @@ namespace eval ten::json {
 
     proc tclify {data} {
       switch -regexp [lindex $data 0] {
-        ^true|false|null$ { uplevel 1 return [lindex $data 0] }
-        ^num|str|obj|list$ {}
+        ^(true|false|null)$ { uplevel 1 return [lindex $data 0] }
+        ^(num|str|obj|list)$ {}
         default { error [ concat "Invalid JSON type " [lindex $data 0 0] ] }
       }
       eval $data
@@ -129,6 +138,7 @@ namespace eval ten::json {
       eat_any
       set tcl {list}
       while {"$json" ne ""} {
+        eat_spaces
         if {[string index $json 0] eq "]"} {
           eat_any
           return $tcl
@@ -141,14 +151,19 @@ namespace eval ten::json {
 
     proc parse_obj {} {
       variable json
-      eat_char
+      eat_any
       set tcl {obj}
       while {"$json" ne ""} {
-        if {[string index $json 0] eq "]"} {
-          eat_char
+        eat_spaces
+        if {[string index $json 0] eq "\}"} {
+          eat_any
           return $tcl
         }
-        lappend tcl [ 
+        eat_spaces
+        lappend tcl [ parse_str ]
+        eat_spaces
+        eat_char :
+        eat_spaces
         lappend tcl [ parse ]
         eat_char ,
       }
@@ -160,7 +175,7 @@ namespace eval ten::json {
       # like Text::Balanced except ugly (borrowed from tcvJSON's code)
       set reStr {(?:(?:\")(?:[^\\\"]*(?:\\.[^\\\"]*)*)(?:\"))}
       if {![regexp $reStr $json string]} {
-        error [ concat "Invalid string: " [string range $json 0 32]
+        error "Invalid string: $json"
       }
       set json [string range $json [string length $string] end]
       # chop off outer ""s and substitute backslashes
@@ -180,6 +195,16 @@ namespace eval ten::json {
       list num $num
     }
 
+    proc parse_bare {} {
+      variable json
+      if [regexp {^(true|false|null)} $json matched] {
+        set json [ string range $json [ string length $matched ] end ]
+        return $matched
+      } else {
+        error "Out of ideas parsing: $json"
+      }
+    }
+
     proc parse {} {
       variable json
       eat_spaces
@@ -193,7 +218,7 @@ namespace eval ten::json {
 
         {[-0-9]} { parse_num }
 
-        default { error "argh" }
+        default { parse_bare }
       }
     }
   }
@@ -207,6 +232,8 @@ namespace eval ten::json {
     }
     return $result
   }
+
+  namespace export parse_json deparse_json tclify_json
 }
 
 set ex_json { list {str foo} {num 0} {obj __remote_object__ {str 512}} {null} }
@@ -222,12 +249,44 @@ set jtext {
   ]
 }
 
-puts [ ten::json::deparse_json $ex_json 2 ]
+namespace eval ten::connection {
+
+  proc receive_data_for {name} {
+    
+
+  proc conn_setup {name input output initial_handlers} {
+    variable "${name}_input" $input
+    variable "${name}_input_closed" ""
+    variable "${name}_output" $output
+    variable "${name}_handlers"
+    array set "${name}_handlers" $initial_handlers
+    fileevent $input readable [list receive_data_for $name]
+    puts $output Shere
+  }
+
+  proc run_until_close {name} {
+    vwait "${name}_input_closed"
+    set close_value "\$${name}_input_closed"
+    teardown $name
+    return $close_value
+  }
+
+  proc teardown {name} {
+    close [ expr "\$${name}_output" ]
+    unset "${name}_input"
+    unset "${name}_input_closed"
+    unset "${name}_output"
+    unset "${name}_handlers"
+  }
+
+namespace import ten::json::*
+
+puts [ deparse_json $ex_json 2 ]
 
-dict for {k v} [ ten::json::tclify_json [
-  lindex [ ten::json::tclify_json $ex_json ] 2
+dict for {k v} [ tclify_json [
+  lindex [ tclify_json $ex_json ] 2
 ] ] { puts "$k: $v" }
 
-#puts [ ten::json::parse_json $jtext ]
+puts [ parse_json $jtext ]
 
-puts [ ten::json::parse_json {["foo",2345,["bar"]]} ]
+puts [ parse_json {["foo",2345,["bar"]]} ]