Function mf1ToMessageData

Convert an ICU MessageFormat 1 message into a Model.Message data object.

If the source message contains any inner selectors, they will be lifted into a single top-level selector.

Only literal values are supported in formatter parameters. Any unsupported argStyle value will be included as a Model.Options value.

import { mf1ToMessageData, mf1Validate } from '@messageformat/icu-messageformat-1';
import { parse } from '@messageformat/parser';

const mf1Msg = parse('The total is {V, number, ::currency/EUR}.');
const mf2Msg = mf1ToMessageData(mf1Msg);
mf1Validate(mf2Msg);
mf2msg;
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{
  type: 'message',
  declarations: [],
  pattern: [
    'The total is ',
    {
      type: 'expression',
      arg: { type: 'variable', name: 'V' },
      functionRef: {
        type: 'function',
        name: 'mf1:currency',
        options: Map(1) { 'currency' => { type: 'literal', value: 'EUR' } }
      },
      attributes: Map(2) {
        'mf1:argType' => { type: 'literal', value: 'number' },
        'mf1:argStyle' => { type: 'literal', value: '::currency/EUR' }
      }
    },
    '.'
  ]
}
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