mirror of
https://github.com/valitydev/wazuh-kibana-app.git
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78 lines
2.3 KiB
JavaScript
78 lines
2.3 KiB
JavaScript
/*
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* Wazuh app - Module for XML beautify
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* Copyright (C) 2015-2019 Wazuh, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* Find more information about this on the LICENSE file.
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*/
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export default xml => {
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const reg = /(>)\s*(<)(\/*)/g; // updated Mar 30, 2015
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const wsexp = / *(.*) +\n/g;
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const contexp = /(<.+>)(.+\n)/g;
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xml = xml
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.replace(reg, '$1\n$2$3')
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.replace(wsexp, '$1\n')
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.replace(contexp, '$1\n$2');
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let formatted = '';
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const lines = xml.split('\n');
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let indent = 0;
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let lastType = 'other';
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// 4 types of tags - single, closing, opening, other (text, doctype, comment) - 4*4 = 16 transitions
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const transitions = {
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'single->single': 0,
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'single->closing': -1,
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'single->opening': 0,
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'single->other': 0,
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'closing->single': 0,
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'closing->closing': -1,
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'closing->opening': 0,
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'closing->other': 0,
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'opening->single': 1,
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'opening->closing': 0,
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'opening->opening': 1,
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'opening->other': 1,
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'other->single': 0,
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'other->closing': -1,
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'other->opening': 0,
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'other->other': 0
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};
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for (const ln of lines) {
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// Luca Viggiani 2017-07-03: handle optional <?xml ... ?> declaration
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if (ln.match(/\s*<\?xml/)) {
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formatted += ln + '\n';
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continue;
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}
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// ---
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const single = Boolean(ln.match(/<.+\/>/)); // is this line a single tag? ex. <br />
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const closing = Boolean(ln.match(/<\/.+>/)); // is this a closing tag? ex. </a>
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const opening = Boolean(ln.match(/<[^!].*>/)); // is this even a tag (that's not <!something>)
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const type = single
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? 'single'
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: closing
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? 'closing'
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: opening
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? 'opening'
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: 'other';
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const fromTo = lastType + '->' + type;
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lastType = type;
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let padding = '';
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indent += transitions[fromTo];
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for (let j = 0; j < indent; j++) {
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padding += '\t';
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}
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if (fromTo == 'opening->closing')
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formatted = formatted.substr(0, formatted.length - 1) + ln + '\n';
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// substr removes line break (\n) from prev loop
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else formatted += padding + ln + '\n';
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}
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return formatted;
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};
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