File size: 3,402 Bytes
5f9852a | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 | '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
let aside = text => text
let mark = text => text
let highlight = text => text
if (color) {
let { bold, gray, red } = pico.createColors(true)
mark = text => bold(red(text))
aside = text => gray(text)
if (terminalHighlight) {
highlight = text => terminalHighlight(text)
}
}
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
return lines
.slice(start, end)
.map((line, index) => {
let number = start + 1 + index
let gutter = ' ' + (' ' + number).slice(-maxWidth) + ' | '
if (number === this.line) {
if (line.length > 160) {
let padding = 20
let subLineStart = Math.max(0, this.column - padding)
let subLineEnd = Math.max(
this.column + padding,
this.endColumn + padding
)
let subLine = line.slice(subLineStart, subLineEnd)
let spacing =
aside(gutter.replace(/\d/g, ' ')) +
line
.slice(0, Math.min(this.column - 1, padding - 1))
.replace(/[^\t]/g, ' ')
return (
mark('>') +
aside(gutter) +
highlight(subLine) +
'\n ' +
spacing +
mark('^')
)
}
let spacing =
aside(gutter.replace(/\d/g, ' ')) +
line.slice(0, this.column - 1).replace(/[^\t]/g, ' ')
return (
mark('>') +
aside(gutter) +
highlight(line) +
'\n ' +
spacing +
mark('^')
)
}
return ' ' + aside(gutter) + highlight(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
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