editer/dist/remove.js

A high level multiline string manipulation library

'use strict';

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

var _locater = require('locater');

var _locater2 = _interopRequireDefault(_locater);

var _utils = require('./utils');

var _utils2 = _interopRequireDefault(_utils);

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var lineBreak = '\n';

function getNthLine(string, lineNumber) {
  var arr = string.split(lineBreak);
  return arr[lineNumber - 1];
}

function replaceNthLine(string, lineNumber, newString) {
  var arr = string.split(lineBreak);
  arr[lineNumber - 1] = newString;

  return arr.join('\n');
}

function remove(string, target, options) {

  function getModifiedTarget(targetInfo, condition) {
    var targetSubstring = undefined;

    if (condition.onSameLine) {
      targetSubstring = getNthLine(target, targetInfo.line);
    } else {
      if (condition.after) {
        targetSubstring = target.slice(targetInfo.index);
      } else if (condition.before) {
        targetSubstring = target.slice(0, targetInfo.index);
      }
    }

    var regex = undefined;

    if (condition.multi) {
      regex = new RegExp(_lodash2.default.escapeRegExp(string), 'g');
    } else {
      regex = new RegExp(_lodash2.default.escapeRegExp(string));
    }

    var newSubstring = targetSubstring.replace(regex, '');

    if (condition.onSameLine) {
      return replaceNthLine(target, targetInfo.line, newSubstring);
    } else {
      return target.replace(targetSubstring, newSubstring);
    }
  }

  if (options.or) {
    for (var i = 0; i < options.or.length; i++) {
      var targetInfo = (0, _utils2.default)(target, options.or[i]);
      if (targetInfo) {
        return getModifiedTarget(targetInfo, options.or[i]);
      }
    }
  } else {
    var targetInfo = (0, _utils2.default)(target, options);
    return getModifiedTarget(targetInfo, options);
  }
}