astx/cjs/util/countLines.js

super powerful structural search and replace for JavaScript and TypeScript to automate your refactoring

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = countLines;

function countLines(source) {
  var until = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : source.length;
  if (!source) return 0;
  var lines = 1;
  var eolRegex = /\r\n?|\n/gm;

  while (eolRegex.exec(source) && eolRegex.lastIndex <= until) {
    lines++;
  }

  return lines;
}