tenebrous-dicebot/api/node_modules/ansi-html/index.js

177 lines
4.2 KiB
JavaScript

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