package fmt

  1. Overview
  2. Docs
OCaml Format pretty-printer combinators

Install 

dune-project
 Dependency

erratique.ch Readme Changelog ISC License Edit opam file Versions (7)

Authors

  1. T
    The fmt programmers

Maintainers

  1. Daniel Bünzli

Sources

fmt-0.11.0.tbz
sha512=3f40155fc6a7315202e410585964307d63416c8001fd243667ed9d8d1a02b67deecacb25e9c2feb409c537bbdfb7817d91168de4ddd643532ff51d6c1c696a4a

Description

Fmt exposes combinators to devise Format pretty-printing functions.

Fmt depends only on the OCaml standard library. The optional Fmt_tty library that allows to setup formatters for terminal color output depends on the Unix library. The optional Fmt_cli library that provides command line support for Fmt depends on cmdliner.

Fmt is distributed under the ISC license.

Home page: http://erratique.ch/software/fmt

Tags

string format pretty-print org:erratique

Published: 28 Jul 2025

README

Fmt — OCaml Format pretty-printer combinators

Fmt exposes combinators to devise Format pretty-printing functions.

Fmt depends only on the OCaml standard library. The optional Fmt_tty library that allows to setup formatters for terminal color output depends on the Unix library. The optional Fmt_cli library that provides command line support for Fmt depends on cmdliner.

Fmt is distributed under the ISC license.

Home page: http://erratique.ch/software/fmt

Installation

Fmt can be installed with opam:

    opam install fmt
opam install base-unix cmdliner fmt # Install all optional libraries

If you don't use opam consult the opam file for build instructions.

Documentation

The documentation can be consulted online or via odig doc fmt.

Questions are welcome but better asked on the OCaml forum than on the issue tracker.

Dependencies (4)

  1. topkg build & >= "1.1.0"
  2. ocamlbuild build
  3. ocamlfind build
  4. ocaml >= "4.08.0"

Dev Dependencies

None

  1. acgtk != "2.1.0"
  2. activitypub
  3. albatross
  4. alcotest
  5. alcotest-async
  6. alcotest-js
  7. alcotest-lwt
  8. alcotest-mirage
  9. alt-ergo-lib >= "2.5.1"
  10. ansi
  11. api-watch
  12. arp
  13. art
  14. awa
  15. baguette_sharp
  16. balancer
  17. base64 >= "3.5.1"
  18. bechamel
  19. bechamel-js
  20. bechamel-notty
  21. bechamel-perf
  22. biotk
  23. bos
  24. builder
  25. builder-web
  26. bun >= "0.3.3"
  27. ca-certs >= "0.2.3"
  28. ca-certs-nss
  29. cactus
  30. caisar
  31. caldav
  32. callipyge >= "0.2"
  33. camels
  34. camlp5 >= "8.00.02"
  35. camlp5-buildscripts
  36. capnp-rpc
  37. capnp-rpc-lwt < "2.0"
  38. capnp-rpc-net
  39. capnp-rpc-unix
  40. carton < "1.0.0"
  41. carton-git
  42. carton-lwt < "1.0.0"
  43. carton-miou-unix
  44. cborl
  45. chamelon
  46. chamelon-unix
  47. chamo
  48. charrua >= "2.0.0"
  49. charrua-client
  50. charrua-unix >= "2.0.0"
  51. checkseum >= "0.0.2"
  52. clim-ppx
  53. cmdtui < "0.4.3"
  54. cmdtui-lambda-term
  55. coap
  56. coap-core
  57. coap-server-lwt
  58. cohttp
  59. cohttp-async
  60. cohttp-curl-async
  61. cohttp-eio
  62. cohttp-lwt-unix
  63. cohttp-mirage
  64. coin < "0.1.2"
  65. colombe
  66. conan
  67. conan-cli
  68. conan-database
  69. conan-lwt
  70. conan-unix
  71. conduit-mirage >= "6.2.2"
  72. conex < "0.10.0"
  73. conex-mirage-crypto
  74. confero
  75. craml
  76. crunch >= "4.0.0"
  77. css
  78. cstruct >= "6.2.0"
  79. current >= "0.6.2"
  80. current-web-pipelines
  81. current_ansi
  82. current_docker
  83. current_examples
  84. current_git
  85. current_github
  86. current_gitlab
  87. current_ocluster
  88. current_rpc
  89. current_slack
  90. current_web
  91. datakit-server
  92. decompress = "1.0.0" | >= "1.3.0"
  93. depyt
  94. diffast-git-cli
  95. digestif >= "0.9.0"
  96. diskuvbox
  97. dkim
  98. dkim-bin
  99. dkim-mirage
  100. dkml-dune-dsl-show
  101. dkml-install
  102. dkml-install-installer < "0.5.1"
  103. dkml-install-runner
  104. dns >= "4.4.1"
  105. dns-cli
  106. dns-client != "7.0.3"
  107. dns-forward
  108. dnssd
  109. docfd
  110. dockerfile
  111. dockerfile-cmd
  112. dockerfile-opam >= "8.2.7"
  113. docteur
  114. dolmen >= "0.5"
  115. dolmen_bin
  116. domain-name < "0.4.1"
  117. dream
  118. dream-cli
  119. dream-inertia
  120. duff
  121. dune-release >= "1.1.0"
  122. dunolint
  123. earlybird
  124. echo
  125. eio
  126. eio_linux
  127. eio_posix
  128. eio_windows >= "0.14"
  129. electrod
  130. emile < "0.8"
  131. encore
  132. eqaf = "0.2" | >= "0.9"
  133. facteur
  134. fat-filesystem >= "0.15.1"
  135. fontforge-of-ocaml
  136. functoria
  137. functoria-runtime
  138. genspio >= "0.0.3"
  139. git
  140. git-cohttp
  141. git-cohttp-unix
  142. git-kv
  143. git-mirage
  144. git-paf
  145. git-unix >= "3.2.0"
  146. github-hooks
  147. glicko2
  148. gmap
  149. gospel
  150. gpt
  151. grace
  152. graphql_parser >= "0.13.0"
  153. happy-eyeballs
  154. happy-eyeballs-lwt
  155. happy-eyeballs-miou-unix
  156. happy-eyeballs-mirage
  157. http-cookie >= "4.0.0" & < "4.3.0"
  158. http-lwt-client
  159. http-multipart-formdata
  160. httpcats
  161. hvsock
  162. hxd < "0.3.0"
  163. icalendar
  164. index
  165. index-bench
  166. irmin
  167. irmin-bench
  168. irmin-chunk
  169. irmin-cli
  170. irmin-client
  171. irmin-git
  172. irmin-graphql
  173. irmin-http
  174. irmin-mirage
  175. irmin-mirage-git
  176. irmin-pack
  177. irmin-server
  178. irmin-test
  179. irmin-tezos
  180. irmin-unix
  181. irmin-watcher
  182. jekyll-format
  183. jsonxt
  184. jwto >= "0.2.0"
  185. kappa-library
  186. ke
  187. kmt
  188. lab >= "0.1.4"
  189. lambda_streams
  190. ldp
  191. letsencrypt
  192. letsencrypt-app
  193. letsencrypt-dns
  194. letters
  195. libdrm
  196. lintcstubs
  197. logs-async-reporter
  198. lwt-parallel
  199. MlFront_Cache
  200. MlFront_Cli < "2.3.1"
  201. MlFront_Codept
  202. MlFront_Errors
  203. MlFront_Logs
  204. MlFront_Tools
  205. mbr-format
  206. mdx
  207. mel-bastet
  208. memtrace_viewer < "v0.15.0"
  209. metrics
  210. metrics-influx
  211. metrics-rusage
  212. metrics-unix
  213. mimic < "0.0.7"
  214. minima-theme
  215. mirage >= "4.0.0"
  216. mirage-block >= "3.0.2"
  217. mirage-block-ramdisk
  218. mirage-block-solo5
  219. mirage-block-unikraft
  220. mirage-block-unix >= "2.12.1"
  221. mirage-block-xen
  222. mirage-channel >= "5.0.0"
  223. mirage-device
  224. mirage-flow
  225. mirage-flow-combinators
  226. mirage-flow-lwt
  227. mirage-flow-unix
  228. mirage-fs
  229. mirage-kv
  230. mirage-kv-mem
  231. mirage-logs
  232. mirage-nat
  233. mirage-net
  234. mirage-net-solo5
  235. mirage-net-unikraft
  236. mirage-protocols
  237. mirage-qubes
  238. mirage-runtime < "4.7.0"
  239. mirage-stack < "4.0.0"
  240. mirage-xen
  241. mlgpx
  242. mqtt
  243. mrmime < "0.6.0"
  244. multipart_form
  245. multipart_form-eio
  246. multipart_form-lwt
  247. multipart_form-miou
  248. not-ocamlfind
  249. obuilder
  250. obuilder-spec >= "0.2"
  251. ocluster >= "0.2"
  252. ocluster-api
  253. octez-internal-libs
  254. octez-libs
  255. octez-node
  256. octez-shell-libs
  257. ocue
  258. odoc >= "2.1.1"
  259. omigrate
  260. opam-0install
  261. opam-0install-cudf < "0.4.1"
  262. opam-check-npm-deps
  263. opam-ci
  264. opam-dune-lint
  265. opam-file-format >= "2.2.0~alpha1"
  266. opam-graph
  267. opium >= "0.19.0"
  268. optint
  269. ortac-core
  270. ortac-dune
  271. ortac-qcheck-stm
  272. ortac-runtime
  273. ortac-wrapper
  274. oskel
  275. owork
  276. pa_ppx >= "0.14"
  277. pa_ppx_hashcons >= "0.11"
  278. pa_ppx_migrate >= "0.11"
  279. pa_ppx_migrate_ocaml_parsetree
  280. pa_ppx_parsetree
  281. pa_ppx_quotation2extension
  282. pa_ppx_regexp
  283. pa_ppx_static
  284. pa_ppx_string
  285. pa_ppx_unique >= "0.11"
  286. paf
  287. paf-cohttp
  288. papi
  289. pecu
  290. pf-qubes
  291. picos_io_cohttp
  292. pplumbing < "0.0.16"
  293. pplumbing-log-cli
  294. ppx_irmin < "2.2.0" | >= "3.0.0"
  295. ppx_lun
  296. ppx_repr >= "0.5.0"
  297. prelude < "0.5"
  298. prettym
  299. progress
  300. prom
  301. prometheus < "1.2"
  302. prometheus-app
  303. protocol-9p
  304. protocol-9p-tool
  305. protocol-9p-unix
  306. pumping
  307. qcow
  308. qcow-tool
  309. quickjs
  310. randii
  311. rdf >= "0.13.0"
  312. regenerate
  313. repr
  314. rosetta < "0.3.0"
  315. scfg >= "0.4"
  316. server-reason-react
  317. sihl < "0.2.0" | >= "0.3.0~rc2"
  318. sihl-core
  319. slipshow >= "0.3.0"
  320. smaws-lib
  321. smtml >= "0.7.0"
  322. snf_mcp
  323. sodium-fmt
  324. solo5-elftool
  325. soupault
  326. spin >= "0.6.0"
  327. spoke
  328. spurs
  329. squirrel
  330. starred_ml
  331. statocaml
  332. stk
  333. stog >= "0.20.0"
  334. stramon-lib
  335. syguslib-utils
  336. syndic >= "1.6.0"
  337. tcpip
  338. term-indexing
  339. term-tools
  340. terminal
  341. tezos-base58
  342. tezos-context >= "16.0"
  343. tezos-context-hash
  344. tezos-context-hash-irmin
  345. tezos-signer-backends
  346. tezos-stdlib-unix < "12.3"
  347. tezos-test-helpers >= "12.3"
  348. timedesc < "0.8.0"
  349. timere
  350. timmy
  351. timmy-jsoo
  352. timmy-unix
  353. tls
  354. tls-mirage
  355. toc
  356. topkg-care
  357. universal-portal
  358. unstrctrd
  359. uring
  360. uspf
  361. uuuu < "0.2.0"
  362. vchan-unix
  363. vendredi
  364. vhd-format-lwt >= "0.13.0"
  365. vif
  366. vpnkit
  367. wayland
  368. x509 >= "0.7.0"
  369. yaml
  370. yocaml >= "2.0.0"
  371. yocaml_runtime
  372. yocaml_syndication >= "2.0.0"
  373. yuscii

Conflicts (1)

  1. cmdliner < "1.3.0"