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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 | 1x 1x 4x 4x 4x 4x 4x 4x 4x 4x 5x 5x 5x 4x 4x | import { empty } from './unicode.ts';
/**
* Options for the {@link fillTemplate} function
* @group String
* @category Operations
*/
export type FillTemplateOptions = {
/** The opening field delimiter */
open?: string;
/** The closing field delimiter */
close?: string;
};
/**
* Fill a template with supplied values
* @param input - The template
* @param values - A dictionary of name-values used to fill in values in the template
* @param options - see {@link FillTemplateOptions}
* @defaultValue open '\{\{'
* @defaultValue close '\}\}'
* @returns template with values replaced
* @group String
* @category Operations
*/
export function fillTemplate(
input: string,
values: Record<string, string | undefined>,
{ open = '{{', close = '}}' }: FillTemplateOptions = {},
): string {
let argInput = input;
for (const match of argInput.match(
new RegExp(`${RegExp.escape(open)}(.+?)${RegExp.escape(close)}`, 'ug'),
) ?? []) {
const key = match.slice(open.length, -close.length).trim();
argInput = argInput.replace(match, values[key] ?? empty);
}
return argInput;
}
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