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import type { LineCounter } from './parse/line-counter'
export type ErrorCode =  | 'ALIAS_PROPS'  | 'BAD_ALIAS'  | 'BAD_DIRECTIVE'  | 'BAD_DQ_ESCAPE'  | 'BAD_INDENT'  | 'BAD_PROP_ORDER'  | 'BAD_SCALAR_START'  | 'BLOCK_AS_IMPLICIT_KEY'  | 'BLOCK_IN_FLOW'  | 'DUPLICATE_KEY'  | 'IMPOSSIBLE'  | 'KEY_OVER_1024_CHARS'  | 'MISSING_CHAR'  | 'MULTILINE_IMPLICIT_KEY'  | 'MULTIPLE_ANCHORS'  | 'MULTIPLE_DOCS'  | 'MULTIPLE_TAGS'  | 'TAB_AS_INDENT'  | 'TAG_RESOLVE_FAILED'  | 'UNEXPECTED_TOKEN'
export type LinePos = { line: number; col: number }
export class YAMLError extends Error {  name: 'YAMLParseError' | 'YAMLWarning'  code: ErrorCode  message: string  pos: [number, number]  linePos?: [LinePos] | [LinePos, LinePos]
  constructor(    name: YAMLError['name'],    pos: [number, number],    code: ErrorCode,    message: string  ) {    super()    this.name = name    this.code = code    this.message = message    this.pos = pos  }}
export class YAMLParseError extends YAMLError {  constructor(pos: [number, number], code: ErrorCode, message: string) {    super('YAMLParseError', pos, code, message)  }}
export class YAMLWarning extends YAMLError {  constructor(pos: [number, number], code: ErrorCode, message: string) {    super('YAMLWarning', pos, code, message)  }}
export const prettifyError =  (src: string, lc: LineCounter) => (error: YAMLError) => {    if (error.pos[0] === -1) return    error.linePos = error.pos.map(pos => lc.linePos(pos)) as      | [LinePos]      | [LinePos, LinePos]    const { line, col } = error.linePos[0]    error.message += ` at line ${line}, column ${col}`
    let ci = col - 1    let lineStr = src      .substring(lc.lineStarts[line - 1], lc.lineStarts[line])      .replace(/[\n\r]+$/, '')
    // Trim to max 80 chars, keeping col position near the middle    if (ci >= 60 && lineStr.length > 80) {      const trimStart = Math.min(ci - 39, lineStr.length - 79)      lineStr = '…' + lineStr.substring(trimStart)      ci -= trimStart - 1    }    if (lineStr.length > 80) lineStr = lineStr.substring(0, 79) + '…'
    // Include previous line in context if pointing at line start    if (line > 1 && /^ *$/.test(lineStr.substring(0, ci))) {      // Regexp won't match if start is trimmed      let prev = src.substring(lc.lineStarts[line - 2], lc.lineStarts[line - 1])      if (prev.length > 80) prev = prev.substring(0, 79) + '…\n'      lineStr = prev + lineStr    }
    if (/[^ ]/.test(lineStr)) {      let count = 1      const end = error.linePos[1]      if (end && end.line === line && end.col > col) {        count = Math.min(end.col - col, 80 - ci)      }      const pointer = ' '.repeat(ci) + '^'.repeat(count)      error.message += `:\n\n${lineStr}\n${pointer}\n`    }  }