lou_trace(1)

lou_trace1

A tool to list all the rules that were used for a braille translation

Usage

lou_trace [OPTIONS] TABLE [,TABLE, ...]

Overview

Examine and debug Braille translation tables. This program allows you to inspect liblouis translation tables by printing out the list of applied translation rules for a given input.

-h, --help

display this help and exit

-v, --version

display version information and exit

-f, --forward

forward translation using the given table

-b, --backward

backward translation using the given table

--noContractions

Use no contractions

--dotsIO

Display dot patterns

--ucBrl

Use Unicode Braille patterns

--noUndefined

Disable output of undefined dot numbers during back-translation

--partialTrans

Use partial back-translation If neither -f nor -b are specified forward translation is assumed

Releases

7 releases since Debian 8 (Jessie); the text changed 6 times.

  1. 8
  2. 9
  3. 10
  4. 11
  5. 12
  6. 13
  7. Arch

--backward since Debian 9 (Stretch); --dotsIO since Debian 10 (Buster); --forward since Debian 9 (Stretch); --noContractions since Debian 10 (Buster); --noUndefined since Debian 11 (Bullseye); --partialTrans since Debian 10 (Buster); --ucBrl since Debian 10 (Buster); -b since Debian 9 (Stretch); -f since Debian 9 (Stretch).

--noUndefinedDots until Debian 10 (Buster).

Author

Written by Bert Frees.

Reporting bugs

Report bugs to [email protected].
Liblouis home page: <http://www.liblouis.io>

From liblouis 3.39.0-1 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.