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LRML Search


LRML Search is a web application for storing, viewing and searching LegalRuleML documents, developed as part of the LegalRuleMLParl project. Under the hood, it is a PHP 7.0 Laravel web app which uses BaseX for XML storage and querying, and PostgreSQL for all other data storage.

Authorship and copyright

LRML Search was written by Radostin Stoyanov and Andrea Faulds. Copyright © 2017 University of Aberdeen.

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License along with this program. If not, see

User's guide

Documentation in Markdown format can be found in src/resources/help/, and also within the app itself.

Maintenance notes

This is a Laravel application. Therefore, its best practice should be adhered to in maintenance, e.g. database changes should have their own migrations.

If you are modifying LRMLToHTMLConverter, bear in mind that in production, it is only run once for each document at the point of upload, and then the HTML version is cached in the PostgreSQL database. Therefore, changes made to the converter will only affect existing documents if they are reuploaded. By contrast, in debug mode it is run every time a document is viewed, allowing for rapid iteration.

Getting started

Install Docker and docker-compose

docker-compose up -d
docker-compose run web bash -c 'php artisan migrate && php artisan db:seed --class=UsersTableSeeder'

User account

By default (see src/database/seeds/UsersTableSeeder.php), a user account with the email address user@localhost and the password lrmlsearch is created. With this account, you can log in and upload or delete documents, as well as create other user accounts.

For security reasons it is not a good idea to keep this initial account around; delete it or change its password. (Unfortunately, neither can be done directly through the interface right now.)

File structure


  • src/app/LRMLToHTMLConverter.php LegalRuleML to HTML converter


  • src/routes/web.php This file contains the routes of the application


  • src/resources/views/index.blade.php Home Page

  • src/resources/views/dashboard.blade.php This view appears after user has logged in successfully.

  • src/resources/views/search.blade.php This view is used for the search functionality.

  • src/resources/views/documents/index.blade.php Show a list of all documents.

  • src/resources/views/documents/show.blade.php Show a HTML content of a document.

  • src/resources/views/documents/upload.blade.php Upload new document.

  • src/resources/views/layouts/app.blade.php The layout file - contains the code which appears on every page

  • src/resources/views/inc/navbar.blade.php Navigation bar

  • src/resources/views/inc/messages.blade.php Success/Error messages shown on the top of a page

  • src/resources/views/auth/login.blade.php Login page

  • src/resources/views/auth/register.blade.php Registration page

  • src/resources/views/auth/passwords/email.blade.php Request reset password

  • src/resources/views/auth/passwords/email.blade.php Confirm reset password


  • src/app/Http/Controllers/Auth/ForgotPasswordController.php This controller is responsible for handling password reset emails.
  • src/app/Http/Controllers/Auth/LoginController.php This controller handles authenticating users.
  • src/app/Http/Controllers/Auth/RegisterController.php This controller handles the registration of new users.
  • src/app/Http/Controllers/Auth/ResetPasswordController.php This controller is responsible for handling password reset requests.
  • src/app/Http/Controllers/BaseXController.php This controller is responsible for the interaction with BaseX.
  • src/app/Http/Controllers/DashboardController.php Controller for the Dashboard shown after successful user login.
  • src/app/Http/Controllers/DocumentsController.php This controller is responsible Upload/Delete/Show/Download of documents.
  • src/app/Http/Controllers/PagesController.php This controller handles requests to the Home Page.
  • src/app/Http/Controllers/SearchController.php This controller handles search requests.


  • src/app/Document.php Store Title, File name and HTML version of documents.
  • src/app/User.php Store user credentials used for authentication.


  • src/public/css/app.css Compiled CSS which includes JQuery and Bootstrap.
  • src/public/css/custom.css Custom CSS rules. They overwrite app.css.
  • src/public/css/lrml.css Style for LegalRuleML elements
  • src/public/js/app.js Compacted JavaScript which includes JQuery and Bootstrap.


Simple web application for storing and searchnig through LegalRuleML encoded documents




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