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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.compareLines = void 0;
const TRIM_WHITE_SPACES_REGEXP = /^[ \f\t\v\u00a0\u1680\u2000-\u200a\u2028\u2029\u202f\u205f\u3000\ufeff]+|[ \f\t\v\u00a0\u1680\u2000-\u200a\u2028\u2029\u202f\u205f\u3000\ufeff]+$/g;
const TRIM_LINE_ENDING_REGEXP = /\r\n|\n$/g;
const REMOVE_WHITE_SPACES_REGEXP = /[ \f\t\v\u00a0\u1680\u2000-\u200a\u2028\u2029\u202f\u205f\u3000\ufeff]/g;
function compareLines(lines1, lines2, options) {
if (options.ignoreEmptyLines) {
lines1 = removeEmptyLines(lines1);
lines2 = removeEmptyLines(lines2);
}
const len = Math.min(lines1.length, lines2.length);
let i = 0;
for (; i < len; i++) {
const isEqual = compareLine(options, lines1[i], lines2[i]);
if (!isEqual) {
return { isEqual: false, restLines1: [], restLines2: [] };
}
}
return {
isEqual: true,
restLines1: lines1.slice(i),
restLines2: lines2.slice(i)
};
}
exports.compareLines = compareLines;
function compareLine(options, line1, line2) {
if (options.ignoreLineEnding) {
line1 = trimLineEnding(line1);
line2 = trimLineEnding(line2);
}
if (options.ignoreWhiteSpaces) {
line1 = trimSpaces(line1);
line2 = trimSpaces(line2);
}
if (options.ignoreAllWhiteSpaces) {
line1 = removeSpaces(line1);
line2 = removeSpaces(line2);
}
return line1 === line2;
}
// Trims string like ' abc \n' into 'abc\n'
function trimSpaces(s) {
const { content, lineEnding } = separateEol(s);
const trimmed = content.replace(TRIM_WHITE_SPACES_REGEXP, '');
return trimmed + lineEnding;
}
function trimLineEnding(s) {
return s.replace(TRIM_LINE_ENDING_REGEXP, '');
}
function removeSpaces(s) {
return s.replace(REMOVE_WHITE_SPACES_REGEXP, '');
}
function removeEmptyLines(lines) {
return lines.filter(line => !isEmptyLine(line));
}
function isEmptyLine(line) {
return line === '\n' || line === '\r\n';
}
function separateEol(s) {
const len = s.length;
let lineEnding = '';
let content = s;
if (s[len - 1] === '\n') {
if (s[len - 2] === '\r') {
return {
lineEnding: '\r\n',
content: s.slice(0, len - 2)
};
}
{
lineEnding = '\n';
content = s.slice(0, len - 1);
}
}
return { content, lineEnding };
}
//# sourceMappingURL=compareLines.js.map
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