177 lines
		
	
	
		
			4.2 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			177 lines
		
	
	
		
			4.2 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| 'use strict'
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| 
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| module.exports = ansiHTML
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| 
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| // Reference to https://github.com/sindresorhus/ansi-regex
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| var _regANSI = /(?:(?:\u001b\[)|\u009b)(?:(?:[0-9]{1,3})?(?:(?:;[0-9]{0,3})*)?[A-M|f-m])|\u001b[A-M]/
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| 
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| var _defColors = {
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|   reset: ['fff', '000'], // [FOREGROUD_COLOR, BACKGROUND_COLOR]
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|   black: '000',
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|   red: 'ff0000',
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|   green: '209805',
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|   yellow: 'e8bf03',
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|   blue: '0000ff',
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|   magenta: 'ff00ff',
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|   cyan: '00ffee',
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|   lightgrey: 'f0f0f0',
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|   darkgrey: '888'
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| }
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| var _styles = {
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|   30: 'black',
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|   31: 'red',
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|   32: 'green',
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|   33: 'yellow',
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|   34: 'blue',
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|   35: 'magenta',
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|   36: 'cyan',
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|   37: 'lightgrey'
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| }
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| var _openTags = {
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|   '1': 'font-weight:bold', // bold
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|   '2': 'opacity:0.5', // dim
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|   '3': '<i>', // italic
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|   '4': '<u>', // underscore
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|   '8': 'display:none', // hidden
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|   '9': '<del>' // delete
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| }
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| var _closeTags = {
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|   '23': '</i>', // reset italic
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|   '24': '</u>', // reset underscore
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|   '29': '</del>' // reset delete
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| }
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| 
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| ;[0, 21, 22, 27, 28, 39, 49].forEach(function (n) {
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|   _closeTags[n] = '</span>'
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| })
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| 
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| /**
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|  * Converts text with ANSI color codes to HTML markup.
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|  * @param {String} text
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|  * @returns {*}
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|  */
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| function ansiHTML (text) {
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|   // Returns the text if the string has no ANSI escape code.
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|   if (!_regANSI.test(text)) {
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|     return text
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|   }
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| 
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|   // Cache opened sequence.
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|   var ansiCodes = []
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|   // Replace with markup.
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|   var ret = text.replace(/\033\[(\d+)*m/g, function (match, seq) {
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|     var ot = _openTags[seq]
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|     if (ot) {
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|       // If current sequence has been opened, close it.
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|       if (!!~ansiCodes.indexOf(seq)) { // eslint-disable-line no-extra-boolean-cast
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|         ansiCodes.pop()
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|         return '</span>'
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|       }
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|       // Open tag.
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|       ansiCodes.push(seq)
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|       return ot[0] === '<' ? ot : '<span style="' + ot + ';">'
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|     }
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| 
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|     var ct = _closeTags[seq]
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|     if (ct) {
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|       // Pop sequence
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|       ansiCodes.pop()
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|       return ct
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|     }
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|     return ''
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|   })
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| 
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|   // Make sure tags are closed.
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|   var l = ansiCodes.length
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|   ;(l > 0) && (ret += Array(l + 1).join('</span>'))
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| 
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|   return ret
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| }
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| 
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| /**
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|  * Customize colors.
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|  * @param {Object} colors reference to _defColors
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|  */
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| ansiHTML.setColors = function (colors) {
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|   if (typeof colors !== 'object') {
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|     throw new Error('`colors` parameter must be an Object.')
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|   }
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| 
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|   var _finalColors = {}
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|   for (var key in _defColors) {
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|     var hex = colors.hasOwnProperty(key) ? colors[key] : null
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|     if (!hex) {
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|       _finalColors[key] = _defColors[key]
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|       continue
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|     }
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|     if ('reset' === key) {
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|       if (typeof hex === 'string') {
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|         hex = [hex]
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|       }
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|       if (!Array.isArray(hex) || hex.length === 0 || hex.some(function (h) {
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|         return typeof h !== 'string'
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|       })) {
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|         throw new Error('The value of `' + key + '` property must be an Array and each item could only be a hex string, e.g.: FF0000')
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|       }
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|       var defHexColor = _defColors[key]
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|       if (!hex[0]) {
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|         hex[0] = defHexColor[0]
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|       }
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|       if (hex.length === 1 || !hex[1]) {
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|         hex = [hex[0]]
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|         hex.push(defHexColor[1])
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|       }
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| 
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|       hex = hex.slice(0, 2)
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|     } else if (typeof hex !== 'string') {
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|       throw new Error('The value of `' + key + '` property must be a hex string, e.g.: FF0000')
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|     }
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|     _finalColors[key] = hex
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|   }
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|   _setTags(_finalColors)
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| }
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| 
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| /**
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|  * Reset colors.
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|  */
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| ansiHTML.reset = function () {
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|   _setTags(_defColors)
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| }
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| 
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| /**
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|  * Expose tags, including open and close.
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|  * @type {Object}
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|  */
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| ansiHTML.tags = {}
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| 
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| if (Object.defineProperty) {
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|   Object.defineProperty(ansiHTML.tags, 'open', {
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|     get: function () { return _openTags }
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|   })
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|   Object.defineProperty(ansiHTML.tags, 'close', {
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|     get: function () { return _closeTags }
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|   })
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| } else {
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|   ansiHTML.tags.open = _openTags
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|   ansiHTML.tags.close = _closeTags
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| }
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| 
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| function _setTags (colors) {
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|   // reset all
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|   _openTags['0'] = 'font-weight:normal;opacity:1;color:#' + colors.reset[0] + ';background:#' + colors.reset[1]
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|   // inverse
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|   _openTags['7'] = 'color:#' + colors.reset[1] + ';background:#' + colors.reset[0]
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|   // dark grey
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|   _openTags['90'] = 'color:#' + colors.darkgrey
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| 
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|   for (var code in _styles) {
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|     var color = _styles[code]
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|     var oriColor = colors[color] || '000'
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|     _openTags[code] = 'color:#' + oriColor
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|     code = parseInt(code)
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|     _openTags[(code + 10).toString()] = 'background:#' + oriColor
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|   }
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| }
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| 
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| ansiHTML.reset()
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