https://github.com/tomooda/jsonutil

JSON parser/printer for VDM-SL
https://github.com/tomooda/jsonutil

formal-methods formal-models formal-specification json vdm vdm-sl

Last synced: 3 months ago
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JSON parser/printer for VDM-SL

• Host: GitHub
• URL: https://github.com/tomooda/jsonutil
• Owner: tomooda
• License: mit
• Created: 2013-12-18T23:53:57.000Z (over 11 years ago)
• Default Branch: master
• Last Pushed: 2013-12-25T00:10:47.000Z (over 11 years ago)
• Last Synced: 2025-01-18T01:44:21.280Z (4 months ago)
• Topics: formal-methods, formal-models, formal-specification, json, vdm, vdm-sl
• Size: 125 KB
• Stars: 0
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
JSONUtil

========

JSON parser/printer for VDM-SL

*CAUTION* : JSONUtil does NOT distinguish "" and [] because neither does VDM-SL.

## JSON <-> VDM mappings

    JSON = seq of char;

    STRING = seq of char;

    ARRAY = seq of VALUE;

    OBJECT = map STRING to VALUE;

    NUMBER = real;

    BOOL = bool;

    VALUE = [ STRING | ARRAY | OBJECT | NUMBER | BOOL ];

## exports the following functions

#### parseJSON : JSON -> bool * VALUE;

parses the given JSON string into a VDM value. This function permits extra data after a valid JSON portion.

    parseJSON("[1, true, \"string\", {\"key\":\"value\"}]")

    ==> mk_(true, [1, true, "string", {"key" |-> "value"}])

    parseJSON("[1, true, \"string\", {\"key\":\"value\"}] EXTRA") 

    ==> mk_(true, [1, true, "string", {"key" |-> "value"}])

#### strictParseJSON : JSON -> bool * VALUE;

parses the given JSON string into a VDM value. This function does NOT permit extra data after a valid JSON portion.

    strictParseJSON("[1, true, \"string\", {\"key\":\"value\"}]")

    ==> mk_(true, [1, true, "string", {"key" |-> "value"}])

    

    strictParseJSON("[1, true, \"string\", {\"key\":\"value\"}] EXTRA")

    ==> mk_(false, nil)

#### printJSON : VALUE -> JSON;

prints the VALUE values into JSON format.

    printJSON([1, true, "string", {"key" |-> "value"}])

    ==> "[1, true, \"string\", {\"key\":\"value\"}]"