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fast JSON formatting (Caché / Ensemble)

It’s also an example for a customized command extension (ZZJSN) in Caché & IRIS

This is the Caché version for fast JSON formatting but it also works in IRIS.
Requires package ZPretty
To allow parallel existence in IRIS this is named ZZJSN

prepare test data:

USER> read js
{"Name":"Li,Robert K.","SSN":"672-92-9664","DOB":"1975-01-12","Home":{"Street":"986 Washington Blvd","City":"Boston","State":"PA","Zip":"95802"},"Office":{"Street":"6012 First Place","City":"Reston","State":"MT","Zip":"77739"},"Spouse":{"Name":"Avery,Zelda H.","SSN":"323-13-7437","DOB":"1943-03-27","Home":{"Street":"196 Main Drive","City":"Youngstown","State":"WY","Zip":"53229"},"Office":{"Street":"4056 Franklin Court","City":"Bensonhurst","State":"IA","Zip":"27688"},"FavoriteColors":["Black"],"Age":77},"Age":45,"Title":"Associate Marketing Manager","Salary":10421}
USER>set jsn={}.%FromJSON(js)

now see it:

USER>ZWRITE jsn  
jjsn={"Name":"Li,Robert K.","SSN":"672-92-9664","DOB":"1975-01-12","Home":{"Street":"986 Washington Blvd","City":"Boston","State":"PA","Zip":"95802"},"Office":{"Street":"6012 First Place","City":"Reston","State":"MT","Zip":"77739"},"Spouse":{"Name":"Avery,Zelda H.","SSN":"323-13-7437","DOB":"1943-03-27","Home":{"Street":"196 Main Drive","City":"Youngstown","State":"WY","Zip":"53229"},"Office":{"Street":"4056 Franklin Court","City":"Bensonhurst","State":"IA","Zip":"27688"},"FavoriteColors":["Black"],"Age":77},"Age":45,"Title":"Associate Marketing Manager","Salary":10421}  ; <DYNAMIC OBJECT>

This doesn’t look so easy to follow.
So this is a shorthand to save time and reduce mistyping.

The attached ZZJSN.inc is to be included into your %ZLANGC00.mac

USER>ZZJSN jsn        ; does the Output to Terminal / Device  
{
  "Name":"Li,Robert K.",
  "SSN":"672-92-9664",
  "DOB":"1975-01-12",
  "Home":{
    "Street":"986 Washington Blvd",
    "City":"Boston",
    "State":"PA",
    "Zip":"95802"
  },
  "Office":{
    "Street":"6012 First Place",
    "City":"Reston",
    "State":"MT",
    "Zip":"77739"
  },
  "Spouse":{
    "Name":"Avery,Zelda H.",
    "SSN":"323-13-7437",
    "DOB":"1943-03-27",
    "Home":{
      "Street":"196 Main Drive",
      "City":"Youngstown",
      "State":"WY",
      "Zip":"53229"
    },
    "Office":{
      "Street":"4056 Franklin Court",
      "City":"Bensonhurst",
      "State":"IA",
      "Zip":"27688"
    },
    "FavoriteColors":[
      "Black"
    ],
    "Age":77
  },
  "Age":45,
  "Title":"Associate Marketing Manager",
  "Salary":10421
}

output to stream

set st=##class(%Stream.GlobalCharacter).%New()
ZZJSN jsn:st      ; write result to Stream

output to string

ZZJSN jsn:"BOBBY"  ; writes it to local variable BOBBY

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