Tcl

Swap JSON Objects

See more JSON Examples

Demonstrates how to swap two JSON objects within a JSON document. Tcl

load ./chilkat.dll

set success 0

set json [new_CkJsonObject]

CkJsonObject_put_EmitCompact $json 0

# Load the following JSON:

# {
#   "petter": {
#     "DOB": "26/02/1986",
#     "gender": "male",
#     "country": "US"
#   },
#   "Sara": {
#     "DOB": "13/05/1982",
#     "gender": "female",
#     "country": "FR"
#   },
#   "Jon": {
#     "DOB": "19/03/1984",
#     "gender": "male",
#     "country": "UK"
#   }
# }

set success [CkJsonObject_LoadFile $json "qa_data/json/people.json"]
if {$success == 0} then {
    puts [CkJsonObject_lastErrorText $json]
    delete_CkJsonObject $json
    exit
}

# Swap the positions of Jon and Sara.
set index1 [CkJsonObject_IndexOf $json "Jon"]
set index2 [CkJsonObject_IndexOf $json "Sara"]
CkJsonObject_Swap $json $index1 $index2

# We have this now:
puts [CkJsonObject_emit $json]

# {
#   "petter": {
#     "DOB": "26/02/1986",
#     "gender": "male",
#     "country": "US"
#   },
#   "Jon": {
#     "DOB": "19/03/1984",
#     "gender": "male",
#     "country": "UK"
#   },
#   "Sara": {
#     "DOB": "13/05/1982",
#     "gender": "female",
#     "country": "FR"
#   }
# }

# To swap an inner member:

set jsonSara [new_CkJsonObject]

CkJsonObject_ObjectOf2 $json "Sara" $jsonSara

set index1 [CkJsonObject_IndexOf $jsonSara "DOB"]
set index2 [CkJsonObject_IndexOf $jsonSara "country"]
CkJsonObject_Swap $jsonSara $index1 $index2

# We now have this:
puts [CkJsonObject_emit $json]

# {
#   "petter": {
#     "DOB": "26/02/1986",
#     "gender": "male",
#     "country": "US"
#   },
#   "Jon": {
#     "DOB": "19/03/1984",
#     "gender": "male",
#     "country": "UK"
#   },
#   "Sara": {
#     "country": "FR",
#     "gender": "female",
#     "DOB": "13/05/1982"
#   }
# }

delete_CkJsonObject $json
delete_CkJsonObject $jsonSara