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node_modules/eslint/lib/rules/no-div-regex.js 1.13 KB
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  /**
   * @fileoverview Rule to check for ambiguous div operator in regexes
   * @author Matt DuVall <http://www.mattduvall.com>
   */
  
  "use strict";
  
  //------------------------------------------------------------------------------
  // Rule Definition
  //------------------------------------------------------------------------------
  
  module.exports = {
      meta: {
          docs: {
              description: "disallow division operators explicitly at the beginning of regular expressions",
              category: "Best Practices",
              recommended: false,
              url: "https://eslint.org/docs/rules/no-div-regex"
          },
  
          schema: [],
  
          messages: {
              unexpected: "A regular expression literal can be confused with '/='."
          }
      },
  
      create(context) {
          const sourceCode = context.getSourceCode();
  
          return {
  
              Literal(node) {
                  const token = sourceCode.getFirstToken(node);
  
                  if (token.type === "RegularExpression" && token.value[1] === "=") {
                      context.report({ node, messageId: "unexpected" });
                  }
              }
          };
  
      }
  };