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. lintcstubs
  196. logs-async-reporter
  197. lwt-parallel
  198. MlFront_Cache
  199. MlFront_Cli < "2.3.1"
  200. MlFront_Codept
  201. MlFront_Errors
  202. MlFront_Logs
  203. MlFront_Tools
  204. mbr-format
  205. mdx
  206. mel-bastet
  207. memtrace_viewer < "v0.15.0"
  208. metrics
  209. metrics-influx
  210. metrics-rusage
  211. metrics-unix
  212. mimic < "0.0.7"
  213. minima-theme
  214. mirage >= "4.0.0"
  215. mirage-block >= "3.0.2"
  216. mirage-block-ramdisk
  217. mirage-block-solo5
  218. mirage-block-unikraft
  219. mirage-block-unix >= "2.12.1"
  220. mirage-block-xen
  221. mirage-channel >= "5.0.0"
  222. mirage-device
  223. mirage-flow
  224. mirage-flow-combinators
  225. mirage-flow-lwt
  226. mirage-flow-unix
  227. mirage-fs
  228. mirage-kv
  229. mirage-kv-mem
  230. mirage-logs
  231. mirage-nat
  232. mirage-net
  233. mirage-net-solo5
  234. mirage-net-unikraft
  235. mirage-protocols
  236. mirage-qubes
  237. mirage-runtime < "4.7.0"
  238. mirage-stack < "4.0.0"
  239. mirage-xen
  240. mlgpx
  241. mqtt
  242. mrmime < "0.6.0"
  243. multipart_form
  244. multipart_form-eio
  245. multipart_form-lwt
  246. multipart_form-miou
  247. not-ocamlfind
  248. obuilder
  249. obuilder-spec >= "0.2"
  250. ocluster >= "0.2"
  251. ocluster-api
  252. octez-internal-libs
  253. octez-libs
  254. octez-node
  255. octez-shell-libs
  256. ocue
  257. odoc >= "2.1.1"
  258. omigrate
  259. opam-0install
  260. opam-0install-cudf < "0.4.1"
  261. opam-check-npm-deps
  262. opam-ci
  263. opam-dune-lint
  264. opam-file-format >= "2.2.0~alpha1"
  265. opam-graph
  266. opium >= "0.19.0"
  267. optint
  268. ortac-core
  269. ortac-dune
  270. ortac-qcheck-stm
  271. ortac-runtime
  272. ortac-wrapper
  273. oskel
  274. owork
  275. pa_ppx >= "0.14"
  276. pa_ppx_hashcons >= "0.11"
  277. pa_ppx_migrate >= "0.11"
  278. pa_ppx_migrate_ocaml_parsetree
  279. pa_ppx_parsetree
  280. pa_ppx_quotation2extension
  281. pa_ppx_regexp
  282. pa_ppx_static
  283. pa_ppx_string
  284. pa_ppx_unique >= "0.11"
  285. paf
  286. paf-cohttp
  287. papi
  288. pecu
  289. pf-qubes
  290. picos_io_cohttp
  291. pplumbing < "0.0.16"
  292. pplumbing-log-cli
  293. ppx_irmin < "2.2.0" | >= "3.0.0"
  294. ppx_lun
  295. ppx_repr >= "0.5.0"
  296. prelude < "0.5"
  297. prettym
  298. progress
  299. prom
  300. prometheus < "1.2"
  301. prometheus-app
  302. protocol-9p
  303. protocol-9p-tool
  304. protocol-9p-unix
  305. pumping
  306. qcow
  307. qcow-tool
  308. quickjs
  309. randii
  310. rdf >= "0.13.0"
  311. regenerate
  312. repr
  313. rosetta < "0.3.0"
  314. scfg >= "0.4"
  315. server-reason-react
  316. sihl < "0.2.0" | >= "0.3.0~rc2"
  317. sihl-core
  318. slipshow >= "0.3.0"
  319. smaws-lib
  320. smtml >= "0.7.0"
  321. snf_mcp
  322. sodium-fmt
  323. solo5-elftool
  324. soupault
  325. spin >= "0.6.0"
  326. spoke
  327. spurs
  328. squirrel
  329. starred_ml
  330. statocaml
  331. stk
  332. stog >= "0.20.0"
  333. stramon-lib
  334. syguslib-utils
  335. syndic >= "1.6.0"
  336. tcpip
  337. term-indexing
  338. term-tools
  339. terminal
  340. tezos-base58
  341. tezos-context >= "16.0"
  342. tezos-context-hash
  343. tezos-context-hash-irmin
  344. tezos-signer-backends
  345. tezos-stdlib-unix < "12.3"
  346. tezos-test-helpers >= "12.3"
  347. timedesc < "0.8.0"
  348. timere
  349. timmy
  350. timmy-jsoo
  351. timmy-unix
  352. tls
  353. tls-mirage
  354. toc
  355. topkg-care
  356. universal-portal
  357. unstrctrd
  358. uring
  359. uspf
  360. uuuu < "0.2.0"
  361. vchan-unix
  362. vendredi
  363. vhd-format-lwt >= "0.13.0"
  364. vif
  365. vpnkit
  366. wayland
  367. x509 >= "0.7.0"
  368. yaml
  369. yocaml >= "2.0.0"
  370. yocaml_runtime
  371. yocaml_syndication >= "2.0.0"
  372. yuscii

Conflicts (1)

  1. cmdliner < "1.3.0"