35 lines
771 B
TypeScript
35 lines
771 B
TypeScript
'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: string, ...args: any[]) {
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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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