sass-lint/lib/rules/leading-zero.js

Sass linter. Compatible but different from scss-lint

'use strict';

var helpers = require('../helpers');

module.exports = {
  'name': 'leading-zero',
  'defaults': {
    'include': false
  },
  'detect': function (ast, parser) {
    var result = [];

    ast.traverseByType('number', function (num) {
      if (num.content.match(/^[0]([0-9]|.[0-9])/)) {
        if (!parser.options.include) {
          result = helpers.addUnique(result, {
            'ruleId': parser.rule.name,
            'line': num.start.line,
            'column': num.start.column,
            'message': 'Don\'t include leading zeros on numbers',
            'severity': parser.severity
          });
        }
      }
      else if (parser.options.include) {
        result = helpers.addUnique(result, {
          'ruleId': parser.rule.name,
          'line': num.start.line,
          'column': num.start.column - 1,
          'message': 'Include leading zeros on numbers',
          'severity': parser.severity
        });
      }
    });

    return result;
  }
};