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1"use strict";2var __extends = (this && this.__extends) || (function () {3    var extendStatics = function (d, b) {4        extendStatics = Object.setPrototypeOf ||5            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||6            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };7        return extendStatics(d, b);8    };9    return function (d, b) {10        if (typeof b !== "function" && b !== null)11            throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");12        extendStatics(d, b);13        function __() { this.constructor = d; }14        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());15    };16})();17Object.defineProperty(exports, "__esModule", { value: true });18exports.lineDiff = void 0;19exports.diffLines = diffLines;20exports.diffTrimmedLines = diffTrimmedLines;21exports.tokenize = tokenize;22var base_js_1 = require("./base.js");23var params_js_1 = require("../util/params.js");24var LineDiff = /** @class */ (function (_super) {25    __extends(LineDiff, _super);26    function LineDiff() {27        var _this = _super !== null && _super.apply(this, arguments) || this;28        _this.tokenize = tokenize;29        return _this;30    }31    LineDiff.prototype.equals = function (left, right, options) {32        // If we're ignoring whitespace, we need to normalise lines by stripping33        // whitespace before checking equality. (This has an annoying interaction34        // with newlineIsToken that requires special handling: if newlines get their35        // own token, then we DON'T want to trim the *newline* tokens down to empty36        // strings, since this would cause us to treat whitespace-only line content37        // as equal to a separator between lines, which would be weird and38        // inconsistent with the documented behavior of the options.)39        if (options.ignoreWhitespace) {40            if (!options.newlineIsToken || !left.includes('\n')) {41                left = left.trim();42            }43            if (!options.newlineIsToken || !right.includes('\n')) {44                right = right.trim();45            }46        }47        else if (options.ignoreNewlineAtEof && !options.newlineIsToken) {48            if (left.endsWith('\n')) {49                left = left.slice(0, -1);50            }51            if (right.endsWith('\n')) {52                right = right.slice(0, -1);53            }54        }55        return _super.prototype.equals.call(this, left, right, options);56    };57    return LineDiff;58}(base_js_1.default));59exports.lineDiff = new LineDiff();60function diffLines(oldStr, newStr, options) {61    return exports.lineDiff.diff(oldStr, newStr, options);62}63function diffTrimmedLines(oldStr, newStr, options) {64    options = (0, params_js_1.generateOptions)(options, { ignoreWhitespace: true });65    return exports.lineDiff.diff(oldStr, newStr, options);66}67// Exported standalone so it can be used from jsonDiff too.68function tokenize(value, options) {69    if (options.stripTrailingCr) {70        // remove one \r before \n to match GNU diff's --strip-trailing-cr behavior71        value = value.replace(/\r\n/g, '\n');72    }73    var retLines = [], linesAndNewlines = value.split(/(\n|\r\n)/);74    // Ignore the final empty token that occurs if the string ends with a new line75    if (!linesAndNewlines[linesAndNewlines.length - 1]) {76        linesAndNewlines.pop();77    }78    // Merge the content and line separators into single tokens79    for (var i = 0; i < linesAndNewlines.length; i++) {80        var line = linesAndNewlines[i];81        if (i % 2 && !options.newlineIsToken) {82            retLines[retLines.length - 1] += line;83        }84        else {85            retLines.push(line);86        }87    }88    return retLines;89}90