50 lines
1.6 KiB
JavaScript
50 lines
1.6 KiB
JavaScript
/*
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This file is part of TALER
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(C) 2015 GNUnet e.V.
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TALER is free software; you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation; either version 3, or (at your option) any later version.
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TALER is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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TALER; see the file COPYING. If not, If not, see <http://www.gnu.org/licenses/>
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*/
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'use strict';
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/**
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* Parse an amount that is specified like '5.42 EUR'.
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* Returns a {currency,value,fraction} object or null
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* if the input is invalid.
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*/
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function amount_parse_pretty(s) {
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let pattern = /(\d+)(.\d+)?\s*([a-zA-Z]+)/;
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let matches = pattern.exec(s);
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if (null == matches) {
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return null;
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}
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return {
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// Always succeeds due to regex
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value: parseInt(matches[1]),
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// Should we warn / fail on lost precision?
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fraction: Math.round(parseFloat(matches[2] || "0") * 1000000),
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currency: matches[3],
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};
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}
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function format(s, ...args) {
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function r(m, n) {
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let i = parseInt(n);
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return args[i];
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}
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s = s.replace(/{{/g, '{');
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s = s.replace(/}}/g, '}');
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s = s.replace(/{([0-9]+)}/g, r);
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return s;
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}
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function promiseFinally(p, fn) {
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return p.then((x) => { fn(); return x; })
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.catch((e) => { fn(); throw e; });
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}
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