canonical/node_modules/css-lint/lib/rules/space-before-colon.js

Canonical code style linter and formatter for JavaScript, SCSS and CSS.

'use strict';

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

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

    ast.traverseByTypes(['propertyDelimiter', 'operator'], function (delimiter, i, parent) {
      if (delimiter.content === ':') {
        var previous = parent.content[i - 1];

        if (previous.is('space')) {
          if (!parser.options.include) {
            result = helpers.addUnique(result, {
              'ruleId': parser.rule.name,
              'line': previous.start.line,
              'column': previous.start.column,
              'message': 'No space allowed before `:`',
              'severity': parser.severity
            });
          }
        }
        else {
          if (parser.options.include) {
            result = helpers.addUnique(result, {
              'ruleId': parser.rule.name,
              'line': delimiter.start.line,
              'column': delimiter.start.column - 1,
              'message': 'Space expected before `:`',
              'severity': parser.severity
            });
          }
        }
      }
    });

    return result;
  }
};