1 | 'use strict';
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2 | const common = require('../lib/common.js');
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3 |
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4 | function helper(paper) {
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5 | paper.handlebars.registerHelper('replace', function (needle, haystack) {
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6 | needle = common.unwrapIfSafeString(needle);
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7 | haystack = common.unwrapIfSafeString(haystack);
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8 |
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9 | const options = arguments[arguments.length - 1];
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10 |
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11 | if (typeof needle !== 'string') {
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12 | return options.inverse(this);
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13 | }
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14 |
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15 | const regex = new RegExp(escapeRegex(needle), 'g');
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16 |
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17 |
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18 | if (typeof haystack === 'string' && regex.test(haystack)) {
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19 | return haystack.replace(regex, options.fn(this));
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20 | } else {
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21 | return options.inverse(this);
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22 | }
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23 | });
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24 | }
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25 |
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26 |
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27 | function escapeRegex(string) {
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28 | return string.replace(/[-\\^$*+?.()|[\]{}]/g, "\\$&");
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29 | }
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30 |
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31 | module.exports = helper;
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