icu-messageformat-parser

import { parse } from 'icu-messageformat-parser'; // Basic argument parsing console.log('Basic argument:', parse('So {wow}.')); // Expected output: [ 'So ', { type: 'argument', arg: 'wow' }, '.' ] // Complex selectordinal with octothorpe const selectOrdinalAst = parse( 'Such { thing }. { count, selectordinal, one {First} two {Second}' + ' few {Third} other {#th} } word.' ); console.log('Selectordinal AST:', selectOrdinalAst); // Nested select statements const nestedSelectAst = parse( 'Many{type,select,plural{ numbers}selectordinal{ counting}' + 'select{ choices}other{ some {type}}}.' ); console.log('Nested Select AST:', nestedSelectAst); // Example with options for plural key validation const msg = '{words, plural, zero{No words} one{One word} other{# words}}'; const englishKeys = { cardinal: [ 'one', 'other' ], ordinal: [ 'one', 'two', 'few', 'other' ] }; console.log('Parsed with default keys (zero is valid):', parse(msg)); try { // This will throw an error because 'zero' is not in englishKeys.cardinal parse(msg, englishKeys); } catch (error: any) { console.error('Error during parsing with strict keys for plurals:', error.message); } // Example demonstrating the `strict` option (replaces `strictNumberSign` in v4+) // In strict mode, '#' is only special inside plural/selectordinal contexts. const strictParse = parse('In plural, # is special. Outside, # is text.', { strict: true }); console.log('Strict parsing of #:', strictParse);