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jshint multistr:true\n\n(function (w, d) {\n 'use strict';\n\n var TABLE_NAME = 'hljs-ln',\n LINE_NAME = 'hljs-ln-line',\n CODE_BLOCK_NAME = 'hljs-ln-code',\n NUMBERS_BLOCK_NAME = 'hljs-ln-numbers',\n NUMBER_LINE_NAME = 'hljs-ln-n',\n DATA_ATTR_NAME = 'data-line-number',\n BREAK_LINE_REGEXP = /\\r\\n|\\r|\\n/g;\n\n if (w.hljs) {\n w.hljs.initLineNumbersOnLoad = initLineNumbersOnLoad;\n w.hljs.lineNumbersBlock = lineNumbersBlock;\n w.hljs.lineNumbersValue = lineNumbersValue;\n\n addStyles();\n } else {\n w.console.error('highlight.js not detected!');\n }\n\n function isHljsLnCodeDescendant(domElt) {\n var curElt = domElt;\n while (curElt) {\n if (curElt.className && curElt.className.indexOf('hljs-ln-code') !== -1) {\n return true;\n }\n curElt = curElt.parentNode;\n }\n return false;\n }\n\n function getHljsLnTable(hljsLnDomElt) {\n var curElt = hljsLnDomElt;\n while (curElt.nodeName !== 'TABLE') {\n curElt = curElt.parentNode;\n }\n return curElt;\n }\n\n // Function to workaround a copy issue with Microsoft Edge.\n // Due to hljs-ln wrapping the lines of code inside a <table> element,\n // itself wrapped inside a <pre> element, window.getSelection().toString()\n // does not contain any line breaks. 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i < lastLineNumber ; ++i) {\n var codeLineSel = format('.{0}[{1}=\"{2}\"]', [CODE_BLOCK_NAME, DATA_ATTR_NAME, i]);\n var codeLineElt = hljsLnTable.querySelector(codeLineSel);\n selectedText += '\\n' + codeLineElt.textContent;\n }\n selectedText += '\\n' + lastLineText;\n return selectedText;\n // single copied line case\n } else {\n return selectionText;\n }\n }\n\n // ensure consistent code copy/paste behavior across all browsers\n // (see https://github.com/wcoder/highlightjs-line-numbers.js/issues/51)\n document.addEventListener('copy', function(e) {\n // get current selection\n var selection = window.getSelection();\n // override behavior when one wants to copy line of codes\n if (isHljsLnCodeDescendant(selection.anchorNode)) {\n var selectionText;\n // workaround an issue with Microsoft Edge as copied line breaks\n // are removed otherwise from the selection string\n if (window.navigator.userAgent.indexOf('Edge') !== -1) {\n selectionText = edgeGetSelectedCodeLines(selection);\n } else {\n // other browsers can directly use the selection string\n selectionText = selection.toString();\n }\n e.clipboardData.setData('text/plain', selectionText);\n e.preventDefault();\n }\n });\n\n function addStyles () {\n var css = d.createElement('style');\n css.type = 'text/css';\n css.innerHTML = format(\n '.{0}{border-collapse:collapse}' +\n '.{0} td{padding:0}' +\n '.{1}:before{content:attr({2})}',\n [\n TABLE_NAME,\n NUMBER_LINE_NAME,\n DATA_ATTR_NAME\n ]);\n d.getElementsByTagName('head')[0].appendChild(css);\n }\n\n function initLineNumbersOnLoad (options) {\n if (d.readyState === 'interactive' || d.readyState === 'complete') {\n documentReady(options);\n } else {\n w.addEventListener('DOMContentLoaded', function () {\n documentReady(options);\n });\n }\n }\n\n function documentReady (options) {\n try {\n var blocks = d.querySelectorAll('code.hljs,code.nohighlight');\n\n for (var i in blocks) {\n if (blocks.hasOwnProperty(i)) {\n if (!isPluginDisabledForBlock(blocks[i])) {\n lineNumbersBlock(blocks[i], options);\n }\n }\n }\n } catch (e) {\n w.console.error('LineNumbers error: ', e);\n }\n }\n\n function isPluginDisabledForBlock(element) {\n return element.classList.contains('nohljsln');\n }\n\n function lineNumbersBlock (element, options) {\n if (typeof element !== 'object') return;\n\n async(function () {\n element.innerHTML = lineNumbersInternal(element, options);\n });\n }\n\n function lineNumbersValue (value, options) {\n if (typeof value !== 'string') return;\n\n var element = document.createElement('code')\n element.innerHTML = value\n\n return lineNumbersInternal(element, options);\n }\n\n function lineNumbersInternal (element, options) {\n\n var internalOptions = mapOptions(element, options);\n\n duplicateMultilineNodes(element);\n\n return addLineNumbersBlockFor(element.innerHTML, internalOptions);\n }\n\n function addLineNumbersBlockFor (inputHtml, options) {\n var lines = getLines(inputHtml);\n\n // if last line contains only carriage return remove it\n if (lines[lines.length-1].trim() === '') {\n lines.pop();\n }\n\n if (lines.length > 1 || options.singleLine) {\n var html = '';\n\n for (var i = 0, l = lines.length; i < l; i++) {\n html += format(\n '<tr>' +\n '<td class=\"{0} {1}\" {3}=\"{5}\">' +\n '<div class=\"{2}\" {3}=\"{5}\"></div>' +\n '</td>' +\n '<td class=\"{0} {4}\" {3}=\"{5}\">' +\n '{6}' +\n '</td>' +\n '</tr>',\n [\n LINE_NAME,\n NUMBERS_BLOCK_NAME,\n NUMBER_LINE_NAME,\n DATA_ATTR_NAME,\n CODE_BLOCK_NAME,\n i + options.startFrom,\n lines[i].length > 0 ? lines[i] : ' '\n ]);\n }\n\n return format('<table class=\"{0}\">{1}</table>', [ TABLE_NAME, html ]);\n }\n\n return inputHtml;\n }\n\n /**\n * @param {HTMLElement} element Code block.\n * @param {Object} options External API options.\n * @returns {Object} Internal API options.\n */\n function mapOptions (element, options) {\n options = options || {};\n return {\n singleLine: getSingleLineOption(options),\n startFrom: getStartFromOption(element, options)\n };\n }\n\n function getSingleLineOption (options) {\n var defaultValue = false;\n if (!!options.singleLine) {\n return options.singleLine;\n }\n return defaultValue;\n }\n\n function getStartFromOption (element, options) {\n var defaultValue = 1;\n var startFrom = defaultValue;\n\n if (isFinite(options.startFrom)) {\n startFrom = options.startFrom;\n }\n\n // can be overridden because local option is priority\n var value = getAttribute(element, 'data-ln-start-from');\n if (value !== null) {\n startFrom = toNumber(value, defaultValue);\n }\n\n return startFrom;\n }\n\n /**\n * Recursive method for fix multi-line elements implementation in highlight.js\n * Doing deep passage on child nodes.\n * @param {HTMLElement} element\n */\n function duplicateMultilineNodes (element) {\n var nodes = element.childNodes;\n for (var node in nodes) {\n if (nodes.hasOwnProperty(node)) {\n var child = nodes[node];\n if (getLinesCount(child.textContent) > 0) {\n if (child.childNodes.length > 0) {\n duplicateMultilineNodes(child);\n } else {\n duplicateMultilineNode(child.parentNode);\n }\n }\n }\n }\n }\n\n /**\n * Method for fix multi-line elements implementation in highlight.js\n * @param {HTMLElement} element\n */\n function duplicateMultilineNode (element) {\n var className = element.className;\n\n if ( ! /hljs-/.test(className)) return;\n\n var lines = getLines(element.innerHTML);\n\n for (var i = 0, result = ''; 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