json(n) JSON json(n) 







json - JSON parser








package require Tcl 8.4


package require json ?1.1?


::json::json2dict txt












The json package provides a simple Tcl-only library for
    parsing the JSON http://www.json.org/ data exchange format as
    specified in RFC 4627 http://www.ietf.org/rfc/rfc4627.txt. There is
    some ambiguity in parsing JSON because JSON has type information that is not
    maintained by the Tcl conversion. The json package returns data as a
    Tcl dict. Either the dict package or Tcl 8.5 is required for
    use.









  
::json::json2dict txt

  
Parse JSON formatted text txt into a Tcl dict and return the
    value.










An example of a JSON array converted to Tcl. A JSON array is
    returned as a single item with multiple elements.




[
    {
       "precision": "zip",
       "Latitude":  37.7668,
       "Longitude": -122.3959,
       "Address":   "",
       "City":      "SAN FRANCISCO",
       "State":     "CA",
       "Zip":       "94107",
       "Country":   "US"
    },
    {
       "precision": "zip",
       "Latitude":  37.371991,
       "Longitude": -122.026020,
       "Address":   "",
       "City":      "SUNNYVALE",
       "State":     "CA",
       "Zip":       "94085",
       "Country":   "US"
    }
]
=>
{Country US Latitude 37.7668 precision zip State CA City {SAN FRANCISCO} Address {} Zip 94107 Longitude -122.3959} {Country US Latitude 37.371991 precision zip State CA City SUNNYVALE Address {} Zip 94085 Longitude -122.026020}



An example of a JSON object converted to Tcl. A JSON object is
    returned as a multi-element list (a dict).




{
    "Image": {
        "Width":  800,
        "Height": 600,
        "Title":  "View from 15th Floor",
        "Thumbnail": {
            "Url":    "http://www.example.com/image/481989943",
            "Height": 125,
            "Width":  "100"
        },
        "IDs": [116, 943, 234, 38793]
    }
}
=>
Image {IDs {116 943 234 38793} Thumbnail {Width 100 Height 125 Url http://www.example.com/image/481989943} Width 800 Height 600 Title {View from 15th Floor}}









This document, and the package it describes, will undoubtedly
    contain bugs and other problems. Please report such in the category
    json of the Tcllib SF Trackers
    [http://sourceforge.net/tracker/?group_id=12883]. Please also report any
    ideas for enhancements you may have for either package and/or
  documentation.








data exchange, exchange format, javascript, json








CGI programming








Copyright (c) 2006 ActiveState Software Inc., 2009 Thomas Maeder, Glue Software Engineering AG








  

    1.1
    json