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11 | 'use strict';
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12 |
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13 | var adler32 = require('./adler32');
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14 |
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15 | var TAG_END = /\/?>/;
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16 | var COMMENT_START = /^<\!\-\-/;
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17 |
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18 | var ReactMarkupChecksum = {
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19 | CHECKSUM_ATTR_NAME: 'data-react-checksum',
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25 | addChecksumToMarkup: function (markup) {
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26 | var checksum = adler32(markup);
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28 |
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29 | if (COMMENT_START.test(markup)) {
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30 | return markup;
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31 | } else {
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32 | return markup.replace(TAG_END, ' ' + ReactMarkupChecksum.CHECKSUM_ATTR_NAME + '="' + checksum + '"$&');
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33 | }
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34 | },
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41 | canReuseMarkup: function (markup, element) {
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42 | var existingChecksum = element.getAttribute(ReactMarkupChecksum.CHECKSUM_ATTR_NAME);
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43 | existingChecksum = existingChecksum && parseInt(existingChecksum, 10);
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44 | var markupChecksum = adler32(markup);
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45 | return markupChecksum === existingChecksum;
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46 | }
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47 | };
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48 |
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49 | module.exports = ReactMarkupChecksum; |
\ | No newline at end of file |