dbuenzli/uuseg

Unicode text segmentation for OCaml

OCaml

25

102 commits

updated Sep 17, 2026

See the code

README

Uuseg — Unicode text segmentation for OCaml

%%VERSION%%

Uuseg is an OCaml library for segmenting Unicode text. It implements the locale independent Unicode text segmentation algorithms to detect grapheme cluster, word and sentence boundaries and the Unicode line breaking algorithm to detect line break opportunities.

The library is independent from any IO mechanism or Unicode text data structure and it can process text without a complete in-memory representation.

Uuseg is distributed under the ISC license. It depends on Uucp.

Homepage: http://erratique.ch/software/uuseg

Installation

Uuseg can be installed with opam:

opam install uuseg
opam install uuseg cmdliner uutf  # For the usegtrip tool. 

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

Documentation

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

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

Sample programs

The usegtrip tool segments text provided on standard input.

See also the doc examples.

dbuenzli/uuseg

Unicode text segmentation for OCaml

OCaml

25

102 commits

updated Sep 17, 2026

See the code

README

Uuseg — Unicode text segmentation for OCaml

%%VERSION%%

Uuseg is an OCaml library for segmenting Unicode text. It implements the locale independent Unicode text segmentation algorithms to detect grapheme cluster, word and sentence boundaries and the Unicode line breaking algorithm to detect line break opportunities.

The library is independent from any IO mechanism or Unicode text data structure and it can process text without a complete in-memory representation.

Uuseg is distributed under the ISC license. It depends on Uucp.

Homepage: http://erratique.ch/software/uuseg

Installation

Uuseg can be installed with opam:

opam install uuseg
opam install uuseg cmdliner uutf  # For the usegtrip tool. 

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

Documentation

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

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

Sample programs

The usegtrip tool segments text provided on standard input.

See also the doc examples.

Significant stargazers

Dmitrii Kovanikov

1,786 followers · starred Jan 2024

Max Mouratov

38 followers · starred Nov 2016

Takashi Suwa

427 followers · starred Feb 2024

Tomoaki KOBAYASHI

8 followers · starred Mar 2024