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| 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 | |