Lingua::Translation::DeepL Raku package

In brief

This Raku package provides access to the language translation service DeepL (https://www.deepl.com). For more details of the DeepL's API usage see https://www.deepl.com/docs-api .

Remark: To use the DeepL API one has to register and obtain authorization key.

Usage examples

Translations

Remark: When the authorization key, auth-key, is specified to be Whatever then deepl-translation attempts to use the env variable DEEPL_AUTH_KEY.

Here is a simple call (automatic language detection by DeepL and translation to English):

use Lingua::Translation::DeepL;
say deepl-translation('Колко групи могат да се намерят в този облак от точки.');

# [{detected_source_language => BG, text => How many groups can be found in this point cloud.}]

Here we translate from Bulgarian, Russian, and Portuguese to English:

my @res = |deepl-translation(
        ['Препоръчай двеста неща от рекомендационната система smrGoods.',
         'Сделать классификатор с логистической регрессии',
         'Fazer um classificador florestal aleatório com 200 árvores'],
        from-lang => Whatever,
        to-lang => 'English',
        auth-key => Whatever);

.say for @res;

# {detected_source_language => BG, text => Recommend two hundred things from the smrGoods recommendation system.}
# {detected_source_language => RU, text => Make a classifier with logistic regression}
# {detected_source_language => PT, text => Make a random forest classifier with 200 trees}

Remark: DeepL allows up to 50 texts to be translated in one API call. Hence, if the first argument is an array with more than 50 elements, then it is partitioned into up-to-50-elements chunks and those are given to deepl-translation.

Languages

The function deepl-translation verifies that the argument languages given to it are valid DeepL from- and to-languages. See the section "Request Translation".

Here we get the mappings of abbreviations to source language names:

deepl-source-languages()

# {bulgarian => BG, chinese => ZH, czech => CS, danish => DA, dutch => NL, english => EN, estonian => ET, finnish => FI, french => FR, german => DE, greek => EL, hungarian => HU, indonesian => ID, italian => IT, japanese => JA, latvian => LV, lithuanian => LT, polish => PL, portuguese => PT, romanian => RO, russian => RU, slovak => SK, slovenian => SL, spanish => ES, swedish => SV, turkish => TR, ukrainian => UK}

Here we get the mappings of abbreviations to target language names:

deepl-target-languages()

# {bulgarian => BG, chinese simplified => ZH, czech => CS, danish => DA, dutch => NL, english => EN, english american => EN-US, english british => EN-GB, estonian => ET, finnish => FI, french => FR, german => DE, greek => EL, hungarian => HU, indonesian => ID, italian => IT, japanese => JA, latvian => LV, lithuanian => LT, polish => PL, portuguese => PT, portuguese brazilian => PT-BR, portuguese non-brazilian => PT-PT, romanian => RO, russian => RU, slovak => SK, slovenian => SL, spanish => ES, swedish => SV, turkish => TR, ukrainian => UK}

Command Line Interface

The package provides a Command Line Interface (CLI) script:

> deepl-translation
# Usage:
#   deepl-translation <text> [-f|--from-lang=<Str>] [-t|--to-lang=<Str>] [-a|--auth-key=<Str>] [--timeout[=UInt]] [--format=<Str>] -- Text translation using the DeepL API.
#
#    <text>                  Text to be translated.
#    -f|--from-lang=<Str>    Source language. [default: 'Whatever']
#    -t|--to-lang=<Str>      Target language. [default: 'English']
#    -a|--auth-key=<Str>     Authorization key (to use DeepL API.) [default: 'Whatever']
#    --timeout[=UInt]        Timeout. [default: 10]
#    --format=<Str>          Format of the result; one of "json" or "hash". [default: 'json']

Remark: When the authorization key argument "auth-key" is specified set to "Whatever" then deepl-translation attempts to use the env variable DEEPL_AUTH_KEY.

References

[DL1] DeepL Translator.

[DL2] DeepL API.