@formatjs/icu-messageformat-parser

Hand-written ICU MessageFormat parser with compatible output as [`intl-messageformat-parser`](https://www.npmjs.com/package/intl-messageformat-parser) but 6 - 10 times as fast.

2.7.6

latest

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Version published: 3 months ago

Weekly downloads: 3.2M; decreased by-1.49%

Maintainers: 3

Install size: 1.32 MB

Created: 3 years ago

Weekly downloads

Package description

What is @formatjs/icu-messageformat-parser?

The @formatjs/icu-messageformat-parser package is a parser for ICU MessageFormat strings, which are used for internationalization and localization. It allows developers to parse complex message strings into an abstract syntax tree (AST) that can be manipulated or used to format messages based on different locales and pluralization rules.

What are @formatjs/icu-messageformat-parser's main functionalities?

Parsing ICU MessageFormat strings

This feature allows you to parse a simple ICU MessageFormat string and obtain an AST representation of it.

import { parse } from '@formatjs/icu-messageformat-parser';
const ast = parse('My name is {name}');

Handling pluralization and select cases

This feature enables parsing of strings with pluralization and select cases, which are essential for proper internationalization.

import { parse } from '@formatjs/icu-messageformat-parser';
const ast = parse('I have {numCats, plural, one {# cat} other {# cats}}');

Support for nested messages

The parser can handle nested messages within an ICU MessageFormat string, allowing for complex message structures.

import { parse } from '@formatjs/icu-messageformat-parser';
const ast = parse('{gender, select, male {He} female {She} other {They}} will respond shortly.');

Argument types parsing

It can parse argument types such as dates and times, which are commonly used in internationalized messages.

import { parse } from '@formatjs/icu-messageformat-parser';
const ast = parse('The event starts on {startDate, date, long}');

Other packages similar to @formatjs/icu-messageformat-parser

Readme

Source

MessageFormat Parser

Hand-written ICU MessageFormat parser with compatible output as intl-messageformat-parser but 6 - 10 times as fast.

$ node benchmark
complex_msg AST length 10861
normal_msg AST length 1665
simple_msg AST length 364
string_msg AST length 131

== Baseline ==
complex_msg x 4,884 ops/sec ±0.97% (91 runs sampled)
normal_msg x 40,113 ops/sec ±1.08% (92 runs sampled)
simple_msg x 200,401 ops/sec ±1.12% (91 runs sampled)
string_msg x 241,103 ops/sec ±0.84% (92 runs sampled)

== This package ==
complex_msg x 31,590 ops/sec ±0.80% (88 runs sampled)
normal_msg x 278,703 ops/sec ±0.83% (95 runs sampled)
simple_msg x 2,038,061 ops/sec ±0.90% (96 runs sampled)
string_msg x 2,392,794 ops/sec ±0.67% (96 runs sampled)

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Last updated on 26 Jan 2024

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