51 lines
5.3 KiB
JavaScript
51 lines
5.3 KiB
JavaScript
import { REGEX_VAR, REGEX_VAR_ALT } from "@polymech/core/constants";
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import { DEFAULT_ROOTS } from './config.js';
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export const DATE_VARS = () => {
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return {
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YYYY: new Date(Date.now()).getFullYear(),
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MM: new Date(Date.now()).getMonth() + 1,
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DD: new Date(Date.now()).getDate(),
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HH: new Date(Date.now()).getHours(),
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SS: new Date(Date.now()).getSeconds()
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};
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};
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export const _substitute = (template, map, keep = true, alt = false) => {
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const transform = (k) => k || '';
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return template.replace(alt ? REGEX_VAR_ALT : REGEX_VAR, (match, key, format) => {
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if (map[key]) {
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return transform(map[key]).toString();
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}
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else if (map[key.replace(/-/g, '_')]) {
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return transform(map[key.replace(/-/g, '_')]).toString();
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}
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else if (keep) {
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return "${" + key + "}";
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}
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else {
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return "";
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}
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});
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};
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export const substitute = (alt, template, vars = {}, keep = true) => alt ? _substitute(template, vars, keep, alt) : _substitute(template, vars, keep, alt);
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export const DEFAULT_VARS = (vars) => {
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return {
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...DEFAULT_ROOTS,
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...DATE_VARS(),
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...vars
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};
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};
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export const resolveVariables = (path, alt = false, vars = {}, keep = false) => substitute(alt, path, DEFAULT_VARS(vars), keep);
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export const resolve = (path, alt = false, vars = {}, keep = false) => resolveVariables(path, alt, vars, keep);
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export const template = (path, vars = {}, keep = false, depth = 3) => {
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const map = DEFAULT_VARS(vars);
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let oldValue = path;
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let newValue = resolve(oldValue, false, map);
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let iterationCount = 0;
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while (newValue !== oldValue && iterationCount < depth) {
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iterationCount++;
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oldValue = newValue;
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newValue = resolve(oldValue, false, map, keep);
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}
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return newValue;
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};
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