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rOACCT/node_modules/postcss/lib/css-syntax-error.js
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css-syntax-error.js
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			'use strict'

			let pico = require('picocolors')

			let terminalHighlight = require('./terminal-highlight')

			class CssSyntaxError extends Error {
			constructor(message, line, column, source, file, plugin) {
			super(message)
			this.name = 'CssSyntaxError'
			this.reason = message

			if (file) {
			this.file = file
			}
			if (source) {
			this.source = source
			}
			if (plugin) {
			this.plugin = plugin
			}
			if (typeof line !== 'undefined' && typeof column !== 'undefined') {
			if (typeof line === 'number') {
			this.line = line
			this.column = column
			} else {
			this.line = line.line
			this.column = line.column
			this.endLine = column.line
			this.endColumn = column.column
			}
			}

			this.setMessage()

			if (Error.captureStackTrace) {
			Error.captureStackTrace(this, CssSyntaxError)
			}
			}

			setMessage() {
			this.message = this.plugin ? this.plugin + ': ' : ''
			this.message += this.file ? this.file : '<css input>'
			if (typeof this.line !== 'undefined') {
			this.message += ':' + this.line + ':' + this.column
			}
			this.message += ': ' + this.reason
			}

			showSourceCode(color) {
			if (!this.source) return ''

			let css = this.source
			if (color == null) color = pico.isColorSupported
			if (terminalHighlight) {
			if (color) css = terminalHighlight(css)
			}

			let lines = css.split(/\r?\n/)
			let start = Math.max(this.line - 3, 0)
			let end = Math.min(this.line + 2, lines.length)

			let maxWidth = String(end).length

			let mark, aside
			if (color) {
			let { bold, red, gray } = pico.createColors(true)
			mark = text => bold(red(text))
			aside = text => gray(text)
			} else {
			mark = aside = str => str
			}

			return lines
			.slice(start, end)
			.map((line, index) => {
			let number = start + 1 + index
			let gutter = ' ' + (' ' + number).slice(-maxWidth) + ' \| '
			if (number === this.line) {
			let spacing =
			aside(gutter.replace(/\d/g, ' ')) +
			line.slice(0, this.column - 1).replace(/[^\t]/g, ' ')
			return mark('>') + aside(gutter) + line + '\n ' + spacing + mark('^')
			}
			return ' ' + aside(gutter) + line
			})
			.join('\n')
			}

			toString() {
			let code = this.showSourceCode()
			if (code) {
			code = '\n\n' + code + '\n'
			}
			return this.name + ': ' + this.message + code
			}
			}

			module.exports = CssSyntaxError
			CssSyntaxError.default = CssSyntaxError