// Ported from js-yaml v3.13.1:
// https://github.com/nodeca/js-yaml/commit/665aadda42349dcae869f12040d9b10ef18d12da
// Copyright 2011-2015 by Vitaly Puzrin. All rights reserved. MIT license.
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
import { repeat } from "./_utils.ts";
export class Mark {
  name;
  buffer;
  position;
  line;
  column;
  constructor(name, buffer, position, line, column){
    this.name = name;
    this.buffer = buffer;
    this.position = position;
    this.line = line;
    this.column = column;
  }
  getSnippet(indent = 4, maxLength = 75) {
    if (!this.buffer) return null;
    let head = "";
    let start = this.position;
    while(start > 0 && "\x00\r\n\x85\u2028\u2029".indexOf(this.buffer.charAt(start - 1)) === -1){
      start -= 1;
      if (this.position - start > maxLength / 2 - 1) {
        head = " ... ";
        start += 5;
        break;
      }
    }
    let tail = "";
    let end = this.position;
    while(end < this.buffer.length && "\x00\r\n\x85\u2028\u2029".indexOf(this.buffer.charAt(end)) === -1){
      end += 1;
      if (end - this.position > maxLength / 2 - 1) {
        tail = " ... ";
        end -= 5;
        break;
      }
    }
    const snippet = this.buffer.slice(start, end);
    return `${repeat(" ", indent)}${head}${snippet}${tail}\n${repeat(" ", indent + this.position - start + head.length)}^`;
  }
  toString(compact) {
    let snippet;
    let where = "";
    if (this.name) {
      where += `in "${this.name}" `;
    }
    where += `at line ${this.line + 1}, column ${this.column + 1}`;
    if (!compact) {
      snippet = this.getSnippet();
      if (snippet) {
        where += `:\n${snippet}`;
      }
    }
    return where;
  }
}
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