README_json.md

Experiments with JSON

This effort resulted in xonixx/gron.awk.

• json_compile.awk - JSON asm → JSON
  • Indent=N - JSON asm → JSON pretty-printed
• json_parser.awk - JSON → JSON asm
• json_gen_asm.awk - AWK routines to generate JSON asm
• json_gron.awk - JSON asm → Gron
• gron_parser.awk - Gron → Gron asm
• ungron.awk - Gron asm → JSON asm
• json_structure.awk - JSON asm → JSON structure

JSON

{
  "total": 57,
  "page": [
    {
      "firstName": "John",
      "lastName": "Doe",
      "age": 25,
      "active": true,
      "hobby": "football"
    },
    {
      "firstName": "Jane",
      "lastName": "Smith",
      "age": 24,
      "active": false,
      "hobby": null
    }
  ]
}

JSON assembler

object
    key
    "total"
    number
    57

    key
    "page"
    array
        object
            key
            "firstName"
            string
            "John"

            key
            "lastName"
            string
            "Doe"

            key
            "age"
            number
            25

            key
            "active"
            true

            key
            "hobby"
            string
            "football"
        end_object

        object
            key
            "firstName"
            string
            "Jane"

            key
            "lastName"
            string
            "Smith"

            key
            "age"
            number
            24

            key
            "active"
            false

            key
            "hobby"
            null
        end_object
    end_array
end_object

Keywords

object       # {
end_object   # }
array        # [
end_array    # ]
key          # "key":
string       # "value"
number       # 123
true         # 
false        # 
null         # 

Links

• https://github.com/Andy753421/rhawk/blob/master/json.awk
• https://github.com/step-/JSON.awk
• https://en.wikipedia.org/wiki/Backus%E2%80%93Naur_form
• https://www.crockford.com/mckeeman.html
• https://www.compart.com/en/unicode/category
• https://github.com/tomnomnom/gron

Test the whole thing

cat test_data/1.json \
  | awk -f json_parser.awk \
  | awk -f json_gron.awk \
  | grep "org." \
  | awk -f gron_parser.awk \
  | awk -f nat_sort.awk -f ungron.awk \
  | Indent=2 awk -f json_compile.awk