stylelint/dist/rules/max-line-length/index.js

A mighty, modern CSS linter.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.messages = exports.ruleName = undefined;

exports.default = function (maxLength, options) {
  return function (root, result) {
    var validOptions = (0, _utils.validateOptions)(result, ruleName, {
      actual: maxLength,
      possible: _lodash.isNumber
    }, {
      actual: options,
      possible: {
        ignore: ["non-comments", "comments"]
      },
      optional: true
    });
    if (!validOptions) {
      return;
    }

    // Collapse all urls into something nice and short,
    // so they do not throw the game
    var rootString = root.toString().replace(/url\(.*\)/ig, "url()");

    var ignoreNonComments = (0, _utils.optionsMatches)(options, "ignore", "non-comments");
    var ignoreComments = (0, _utils.optionsMatches)(options, "ignore", "comments");

    // Check first line
    checkNewline({ endIndex: 0 });

    // Check subsequent lines
    (0, _styleSearch2.default)({ source: rootString, target: ["\n"], comments: "check" }, checkNewline);

    function complain(index) {
      (0, _utils.report)({
        index: index,
        result: result,
        ruleName: ruleName,
        message: messages.expected(maxLength),
        node: root
      });
    }

    function checkNewline(match) {
      var nextNewlineIndex = rootString.indexOf("\n", match.endIndex);
      if (rootString[nextNewlineIndex - 1] === "\r") {
        nextNewlineIndex -= 1;
      }

      // Accommodate last line
      if (nextNewlineIndex === -1) {
        nextNewlineIndex = rootString.length;
      }

      // If the line's length is less than or equal to the specified
      // max, ignore it ... So anything below is liable to be complained about
      if (nextNewlineIndex - match.endIndex <= maxLength) {
        return;
      }

      var complaintIndex = nextNewlineIndex - 1;

      if (ignoreComments) {
        if (match.insideComment) {
          return;
        }

        // This trimming business is to notice when the line starts a
        // comment but that comment is indented, e.g.
        //       /* something here */
        var nextTwoChars = rootString.slice(match.endIndex).trim().slice(0, 2);
        if (nextTwoChars === "/*" || nextTwoChars === "//") {
          return;
        }
      }

      if (ignoreNonComments) {
        if (match.insideComment) {
          return complain(complaintIndex);
        }

        // This trimming business is to notice when the line starts a
        // comment but that comment is indented, e.g.
        //       /* something here */
        var _nextTwoChars = rootString.slice(match.endIndex).trim().slice(0, 2);
        if (_nextTwoChars !== "/*" && _nextTwoChars !== "//") {
          return;
        }
        return complain(complaintIndex);
      }

      // If there are no spaces besides initial (indent) spaces, ignore it
      var lineString = rootString.slice(match.endIndex, nextNewlineIndex);
      if (lineString.replace(/^\s+/, "").indexOf(" ") === -1) {
        return;
      }

      return complain(complaintIndex);
    }
  };
};

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

var _lodash = require("lodash");

var _styleSearch = require("style-search");

var _styleSearch2 = _interopRequireDefault(_styleSearch);

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

var ruleName = exports.ruleName = "max-line-length";

var messages = exports.messages = (0, _utils.ruleMessages)(ruleName, {
  expected: function expected(l) {
    return "Expected line length to be no more than " + l + " characters";
  }
});