Provides message extraction and code generation from translated messages for the intl package. It's a separate package so as to not require a dependency on analyzer for all users.
Extracting And Using Translated Messages
When your program contains messages that need translation, these must be extracted from the program source, sent to human translators, and the results need to be incorporated.
To extract messages, run the extract_to_arb.dart program.
dart run intl_translation:extract_to_arb --output-dir=target/directory \
my_program.dart more_of_my_program.dart
This supports wildcards. For example, to extract messages from a series of files in path lib/**/*.dart, you can run
dart run intl_translation:extract_to_arb --output-dir=target/directory
lib/**/*.dartThis will produce a file intl_messages.arb with the messages from all of these
programs. This is an ARB format file which can be used for input to
translation tools like Localizely or Lyrebird. The resulting translations can
be used to generate a set of libraries using the generate_from_arb.dart
program.
This expects to receive a series of files, one per locale.
dart run intl_translation:generate_from_arb --generated-file-prefix=<prefix> \
<my_dart_files> <translated_ARB_files>
This will generate Dart libraries, one per locale, which contain the translated
versions. Your Dart libraries can import the primary file, named
<prefix>messages_all.dart, and then call the initialization for a specific
locale. Once that's done, any Intl.message calls made in the
context of that locale will automatically print the translated version instead
of the original.
import "my_prefix_messages_all.dart";
...
initializeMessages("dk").then(printSomeMessages);Once the Future returned from the initialization call completes, the message
data is available.