To change the language of the UI element, you can use the following parameter in your YAML:
output:
learnr::tutorial:
language: fr
Currently, 10 language translations are supported:
en
for Englishfr
for French / Françaises
for Spanish / Españolpt
for Portuguesetr
for Turkisheu
for Basquede
for Germanko
for Koreanzh
pl
for PolishThere are many elements whose language can be translated or customized, each identified by a key. Note that you do not need to customize all of the keys, the UI will fall back to the default tutorial language for keys that are not specifically customized.
The keys are organized into 2 groups: button and text.
The following keys are available for translating text elements:
text:
startover: Start Over
areyousure: Are you sure you want to start over? (all exercise progress will be reset)
youmustcomplete: You must complete the
exercise: exercise
exercise_plural: exercises
inthissection: in this section before continuing.
code: Code
enginecap: {{engine}} $t(text.code)
quiz: Quiz
blank: blank
blank_plural: blanks
exercisecontainsblank: This exercise contains {{count}} $t(text.blank).
pleasereplaceblank: Please replace {{blank}} with valid code.
unparsable: It looks like this might not be valid R code. R cannot determine how to turn your text into a complete command. You may have forgotten to fill in a blank, to remove an underscore, to include a comma between arguments, or to close an opening <code>"</code>, <code>'</code>, <code>(</code> or <code>{</code> with a matching <code>"</code>, <code>'</code>, <code>)</code> or <code>}</code>.
unparsablequotes: <p>It looks like your R code contains specially formatted quotation marks or "curly" quotes (<code>{{character}}</code>) around character strings, making your code invalid. R requires character values to be contained in straight quotation marks (<code>"</code> or <code>'</code>).</p> {{code}} <p>Don't worry, this is a common source of errors when you copy code from another app that applies its own formatting to text. You can try replacing the code on that line with the following. There may be other places that need to be fixed, too.</p> {{suggestion}}
unparsableunicode: <p>It looks like your R code contains an unexpected special character (<code>{{character}}</code>) that makes your code invalid.</p> {{code}} <p>Sometimes your code may contain a special character that looks like a regular character, especially if you copy and paste the code from another app. Try deleting the special character from your code and retyping it manually.</p>
unparsableunicodesuggestion: <p>It looks like your R code contains an unexpected special character (<code>{{character}}</code>) that makes your code invalid.</p> {{code}} <p>Sometimes your code may contain a special character that looks like a regular character, especially if you copy and paste the code from another app. You can try replacing the code on that line with the following. There may be other places that need to be fixed, too.</p> {{suggestion}}
and: and
or: or
listcomma: ,
oxfordcomma: ,
language
Option in YAML Header:There are several ways that you can use the language
option to choose a language translation or to customize the phrasing
used in a particular language.
Chose the default language for the tutorial. learnr currently
provides complete translations for "en"
, "fr"
,
"es"
, "pt"
, "tr"
,
"eu"
, "de"
, "ko"
,
"zh"
, and "pl"
. A translation does not need to
be available for you to use as the default language, in particular if
you are providing a custom translation for a language without an
available complete translation.
If you only want to change the default language, use:
If you are also providing language customizations, the first language in the list of customizations will be the default language.
To customize the displayed text for a single language, use the following format. In this format the customization will be applied to the English translation, which will also be the default language of the tutorial.
To provide custom display text for multiple languages, provide a list
containing button
and/or text
custom labels.
In the example below, the default tutorial language will be Spanish
(es
).
Note that only the first language and its customizations are used in the rendered tutorial. In the future, we may extend the multi-language features of learnr to accommodate dynamic localization.
If you intend to reuse the same custom language repeatedly, it may be helpful to store the custom language parameters in a JSON file and simply import the file. In this case, you can set the language code item to the path to a single JSON file, written with the same structure as the YAML.
For example, you could write Spanish language customizations to
tutorial_es.json
with the following R code:
jsonlite::write_json(
list(
button = list(runcode = "Ejecutar"),
text = list(startover = "Empezar de nuevo")
),
path = "tutorial_es.json",
auto_unbox = TRUE
)
You could then load customizations from this file by referencing it in the YAML header.
Similarly, you can store the entire language
list in a
JSON file and provide the path to the JSON file to the
language
key.
jsonlite::write_json(
list(
en = list(
button = list(runcode = "Run the code"),
text = list(startover = "Restart the tutorial")
),
es = list(
button = list(runcode = "Ejecutar"),
text = list(startover = "Empezar de nuevo")
)
),
path = "custom_language.json",
auto_unbox = TRUE
)
The R code above writes the custom text for en
and
es
languages into custom_language.json
, which
we then reference in the YAML header:
Complete translations are provided by the internal function
i18n_translations()
. To contribute a complete translation
for a language not currently provided by learnr, please submit a pull
request to github.com/rstudio/learnr
updating the list in data-raw/i18n_translations.yml
,
following the format described in that file.
Note that for the language to be available inside the alert boxes of
learnr, you’ll need to set the language to one of the language codes used
by bootbox1. If your language is not available for
bootbox
, then the buttons will default to English.
ar
, bg_BG
, cs
,
de
, en
, et
, fa
,
fr
, hr
, id
, ja
,
ko
, lv
, no
, pt
,
sk
, sq
, sw
, th
,
uk
, zh_CN
, az
, br
,
da
, el
, es
, eu
,
fi
, he
, hu
, it
,
ka
, lt
, nl
, pl
,
ru
, sl
, sv
, ta
,
tr
, vi
, or zh_TW
↩︎