node_modules/stylelint/lib/rules/selector-attribute-operator-space-before/index.js

"use strict";

const _ = require("lodash");
const ruleMessages = require("../../utils/ruleMessages");
const selectorAttributeOperatorSpaceChecker = require("../selectorAttributeOperatorSpaceChecker");
const validateOptions = require("../../utils/validateOptions");
const whitespaceChecker = require("../../utils/whitespaceChecker");

const ruleName = "selector-attribute-operator-space-before";

const messages = ruleMessages(ruleName, {
  expectedBefore: operator => `Expected single space before "${operator}"`,
  rejectedBefore: operator => `Unexpected whitespace before "${operator}"`
});

const rule = function(expectation, options, context) {
  const checker = whitespaceChecker("space", expectation, messages);

  return (root, result) => {
    const validOptions = validateOptions(result, ruleName, {
      actual: expectation,
      possible: ["always", "never"]
    });

    if (!validOptions) {
      return;
    }

    selectorAttributeOperatorSpaceChecker({
      root,
      result,
      locationChecker: checker.before,
      checkedRuleName: ruleName,
      checkBeforeOperator: true,
      fix: context.fix
        ? attributeNode => {
            const rawAttrAfter = _.get(
              attributeNode,
              "raws.spaces.attribute.after"
            );
            const { attrAfter, setAttrAfter } = rawAttrAfter
              ? {
                  attrAfter: rawAttrAfter,
                  setAttrAfter(fixed) {
                    attributeNode.raws.spaces.attribute.after = fixed;
                  }
                }
              : {
                  attrAfter: _.get(attributeNode, "spaces.attribute.after", ""),
                  setAttrAfter(fixed) {
                    _.set(attributeNode, "spaces.attribute.after", fixed);
                  }
                };

            if (expectation === "always") {
              setAttrAfter(attrAfter.replace(/\s*$/, " "));

              return true;
            } else if (expectation === "never") {
              setAttrAfter(attrAfter.replace(/\s*$/, ""));

              return true;
            }
          }
        : null
    });
  };
};

rule.ruleName = ruleName;
rule.messages = messages;
module.exports = rule;