package yojson

  1. Overview
  2. Docs
Yojson is an optimized parsing and printing library for the JSON format

Install 

dune-project
 Dependency

github.com Readme Changelog License Edit opam file Versions (15)

Authors

  1. M
    Martin Jambon

Maintainers

  1. M
    martin@mjambon.com

Sources

yojson-1.5.0.tbz
sha256=70a0f972fedebd736546eae832e255753d3214a8b3283597ae112577d70c8b33
md5=d80de1bacdde292af42f7c78b323da7b

Description

Yojson is an optimized parsing and printing library for the JSON format.

It addresses a few shortcomings of json-wheel including 2x speedup, polymorphic variants and optional syntax for tuples and variants.

ydump is a pretty-printing command-line program provided with the yojson package.

The program atdgen can be used to derive OCaml-JSON serializers and deserializers from type definitions.

Published: 27 Dec 2018

README

Yojson: low-level JSON library for OCaml

This library is for manipulating the json AST directly. For mapping between OCaml types and json, we recommend atdgen.

Library documentation

Currently at https://ocaml-community.github.io/yojson/

Design goals

  • reducing inter-package dependencies by the use of polymorphic variants for the JSON tree type
  • allowing variants of the JSON tree type to be shipped by the library itself or to be easily created as extensions of the library
  • allowing type-aware serializers/deserializers such as json-static to read and write directly without going through a JSON tree, for efficiency purposes. This requires making readers and writers of JSON atoms (int, string, etc.) to be exported and composable.

  • providing a few non-standard, optional extensions of JSON. These extensions will include:

    • optional quotes around "simple" field/constructor names
    • a syntax for tuples (at least 2 elements): (x, y)
    • a syntax for variants (0 or 1 arg only): <Foo> <Bar:"abc">

Other choices already in json-wheel

  • distinction between ints and floats (optional)

  • Getting rid of the UTF-X encoding constraint that prevents from exchanging binary data:

    • encoding is ASCII except for the contents of string literals
    • string literals may represent arbitrary sequence of bytes
    • \uABCD escapes in string literals expand to UTF-8

Miscellaneous

  • no dependency on ocamlnet for UTF-8

Dependencies (5)

  1. biniou >= "1.2.0"
  2. easy-format
  3. cppo build
  4. dune
  5. ocaml >= "4.02.3"

Dev Dependencies

None

  1. 0install < "2.18"
  2. anthropic
  3. archetype < "1.2.5"
  4. atdgen < "2.2.1"
  5. atdgen-runtime < "2.2.1"
  6. aws-s3 < "4.5.1" | >= "4.8.0"
  7. bap-radare2
  8. bitcoin < "3.0"
  9. boulangerie
  10. builder-web >= "0.2.0"
  11. calculon < "0.6"
  12. calculon-redis-lib
  13. camels
  14. canary
  15. cb-check
  16. cbor < "0.3"
  17. cconv-ppx
  18. colibrics
  19. comby
  20. comby-kernel
  21. comby-semantic
  22. containers >= "3.9"
  23. current_docker
  24. current_git
  25. current_github
  26. current_gitlab
  27. current_slack
  28. current_ssh
  29. dap
  30. daypack-lib
  31. dblp-api
  32. decoders-yojson < "0.7.0"
  33. devkit < "1.2"
  34. disml
  35. docker-api < "0.2.2"
  36. dream
  37. dream-inertia
  38. elpi >= "3.3.1"
  39. frama-c < "23.0"
  40. fred
  41. fstar
  42. gdbprofiler < "0.4"
  43. gemini < "0.3.0"
  44. github < "4.1.0"
  45. goblint-cil >= "1.8.0"
  46. graphql < "0.14.0"
  47. graphql_ppx < "1.2.2"
  48. h2
  49. hilite < "0.3.0"
  50. hl_yaml
  51. hockmd
  52. hpack
  53. hsluv
  54. huml
  55. huml-cli
  56. index-bench
  57. irmin-graphql
  58. irmin-tezos
  59. jhupllib < "0.2.2"
  60. js_of_ocaml-compiler < "5.9.0"
  61. json-rpc
  62. json_decoder
  63. jsondiff
  64. jsonrpc < "1.6.0"
  65. jsonschema
  66. jsonschema2atd
  67. jupyter < "2.7.0"
  68. jupyter-kernel < "0.5"
  69. jwt
  70. jwto < "0.2.0"
  71. karamel
  72. kind2
  73. kremlin < "transition"
  74. kubecaml
  75. learn-ocaml
  76. lsp
  77. monorobot
  78. morbig < "0.10.4"
  79. nsq
  80. obuilder < "0.4"
  81. ocaml-lsp-server
  82. ocaml-protoc-plugin >= "6.1.0"
  83. ocaml-protoc-yojson
  84. odoc = "2.1.1"
  85. oframl
  86. ogen
  87. oidc
  88. openai-gym
  89. oraft
  90. orun
  91. ozulip
  92. pds-reachability < "0.2.3"
  93. petr4
  94. phylogenetics = "0.2.0"
  95. pkcs11
  96. plist
  97. podge
  98. ppx_deriving_jsonschema
  99. ppx_protocol_conv_json >= "5.0.0" & < "5.2.1"
  100. ppx_yojson < "1.0.0"
  101. prof_spacetime
  102. qmp < "0.19.0"
  103. quests
  104. r2pipe
  105. radare2
  106. rdf < "0.12.0"
  107. records < "1.0.0"
  108. repr-bench
  109. rungen
  110. SZXX
  111. safemoney
  112. satyrographos
  113. savvy
  114. semver2
  115. sentry
  116. slack
  117. slacko
  118. slug
  119. spotify-web-api
  120. stitch
  121. swagger
  122. tdigest < "2.1.0"
  123. telegraml
  124. textrazor < "0.1.1"
  125. tezos-context-hash-irmin
  126. vecosek
  127. vecosek-scene
  128. vercel
  129. vscoq-language-server < "2.3.3"
  130. vsrocq-language-server
  131. wamp < "1.0"
  132. wamp-yojson
  133. webauthn
  134. xapi-rrd >= "1.9.0"

Conflicts

None