ftl231 B

Fluent (.ftl) — English

Mozilla Fluent SAMPLE catalog (English) with placeholders and plural select — for Fluent parsers and CAT tools.

Internationalization Localization catalogs Encoding detection

Preview — first 14 linesftl

# Novus SAMPLE Fluent catalog (en)

greeting = Hello
welcome = Welcome, { $name }
save = Save
cancel = Cancel

items-count =
    { $count ->
        [0] No items
        [one] { $count } item
       *[other] { $count } items
    }

Specifications

Format: Fluent
Locale: en
Keys: 5
Wave: G

What is a .ftl file?

Fluent (.ftl) is Mozilla's localization file format for natural-sounding translations with placeholders, plurals, and selectors. Catalogs are plain text and designed for readable, maintainable UI strings.

How to use this file

Use a SAMPLE .ftl catalog to test Fluent parsers, plural/select resolution, and CAT tool import/export against known keys.

How to use this file for testing

“Fluent (.ftl) — English” is a deterministic Novus Examples fixture for Internationalization, Localization catalogs, Encoding detection. Parallel text and accented, multi-script content — for testing translation pipelines, Unicode handling, and localization tooling.

Documented properties for this file: Fluent. Compare results against paired or grouped companions on this page when present (clean↔damaged, searchable↔scanned, or format twins) so scores stay reproducible across runs.

Download the file once, keep the path stable in CI or local scripts, and treat the spec table as the contract: dimensions, seeds, field lists, and roles are intentional. Corrupt or invalid samples are labelled as such — expect parsers to fail loudly rather than silently accept them.

Translation-catalog fixtures carry the same message set across formats, each with its native placeholder syntax. Test your i18n loader, catalog converter, or translation-memory tool, and use the RTL and CJK variants to check bidirectional text and Unicode handling.

Load the catalog with your i18n framework and verify placeholder interpolation and plural handling; the RTL and CJK variants exercise bidirectional text and font fallback.

Code examples

from fluent.syntax import parse  # pip install fluent.syntax

res = parse(open("messages-en.ftl", encoding="utf-8").read())
for entry in res.body:
    if getattr(entry, "id", None):
        print(entry.id.name)