X Neural Switcher, or xneur, is a free software

Free software

Free software, software libre or libre software is software that can be used, studied, and modified without restriction, and which can be copied and redistributed in modified or unmodified form either without restriction, or with restrictions that only ensure that further recipients can also do...

 (GNU GPL) computer program

Computer program

A computer program is a sequence of instructions written to perform a specified task with a computer. A computer requires programs to function, typically executing the program's instructions in a central processor. The program has an executable form that the computer can use directly to execute...

 for automatic (intelligent) keyboard layout

Keyboard layout

A keyboard layout is any specific mechanical, visual, or functional arrangement of the keys, legends, or key–meaning associations of a computer, typewriter, or other typographic keyboard....

 changing in the X Window System

X Window System

The X window system is a computer software system and network protocol that provides a basis for graphical user interfaces and rich input device capability for networked computers...

, and runs on all flavours of Linux

Linux

Linux is a Unix-like computer operating system assembled under the model of free and open source software development and distribution. The defining component of any Linux system is the Linux kernel, an operating system kernel first released October 5, 1991 by Linus Torvalds...

 and BSD. Currently, it is mainly used to change between Russian

Russian language

Russian is a Slavic language used primarily in Russia, Belarus, Uzbekistan, Kazakhstan, Tajikistan and Kyrgyzstan. It is an unofficial but widely spoken language in Ukraine, Moldova, Latvia, Turkmenistan and Estonia and, to a lesser extent, the other countries that were once constituent republics...

 and English

English language

English is a West Germanic language that arose in the Anglo-Saxon kingdoms of England and spread into what was to become south-east Scotland under the influence of the Anglian medieval kingdom of Northumbria...

, but also supports Ukrainian

Ukrainian language

Ukrainian is a language of the East Slavic subgroup of the Slavic languages. It is the official state language of Ukraine. Written Ukrainian uses a variant of the Cyrillic alphabet....

, Belorussian, French

French language

French is a Romance language spoken as a first language in France, the Romandy region in Switzerland, Wallonia and Brussels in Belgium, Monaco, the regions of Quebec and Acadia in Canada, and by various communities elsewhere. Second-language speakers of French are distributed throughout many parts...

, Romanian

Romanian language

Romanian Romanian Romanian (or Daco-Romanian; obsolete spellings Rumanian, Roumanian; self-designation: română, limba română ("the Romanian language") or românește (lit. "in Romanian") is a Romance language spoken by around 24 to 28 million people, primarily in Romania and Moldova...

, Kazakh

Kazakh language

Kazakh is a Turkic language which belongs to the Kipchak branch of the Turkic languages, closely related to Nogai and Karakalpak....

 and German

German language

German is a West Germanic language, related to and classified alongside English and Dutch. With an estimated 90 – 98 million native speakers, German is one of the world's major languages and is the most widely-spoken first language in the European Union....

.

The program loads itself into the background and monitors user input. If an entered character sequence is uncommon in the current user input language, then xneur changes the keyboard layout, and rewrites the (possibly incomplete) word in the more appropriate language. For example, the incorrect "Dbrbgtlbz" will be changed into the Russian for "Wikipedia" ("Википедия"), and vice-versa, "фззду" will become "apple".

The user can add new words or character sequences into the program's dictionary, and can manually change languages with a keyboard shortcut. Automatic detection can be disabled, leaving only manual switching.

X Neural Switcher is divided into two parts:

• xneur server works as a daemon
  Daemon (computer software)
  In Unix and other multitasking computer operating systems, a daemon is a computer program that runs as a background process, rather than being under the direct control of an interactive user...
  
   in a basic X Window System
  X Window System
  The X window system is a computer software system and network protocol that provides a basis for graphical user interfaces and rich input device capability for networked computers...
  
  
• graphical frontend gxneur (for GNOME
  GNOME
  GNOME is a desktop environment and graphical user interface that runs on top of a computer operating system. It is composed entirely of free and open source software...
  
  , uses GTK+
  GTK+
  GTK+ is a cross-platform widget toolkit for creating graphical user interfaces. It is licensed under the terms of the GNU LGPL, allowing both free and proprietary software to use it. It is one of the most popular toolkits for the X Window System, along with Qt.The name GTK+ originates from GTK;...
  
  ) and kxneur (for KDE
  KDE
  KDE is an international free software community producing an integrated set of cross-platform applications designed to run on Linux, FreeBSD, Microsoft Windows, Solaris and Mac OS X systems...
  
  , currently in development)

X Neural Switcher was added to ALT Linux

ALT Linux

ALT Linux is a set of RPM-based operating systems built on top of the Linux kernel and Sisyphus packages repository. ALT Linux is developed jointly by ALT Linux Team developers community and ALT Linux Ltd.- History :...

, Russian SuSE club, Debian

Debian

Debian is a computer operating system composed of software packages released as free and open source software primarily under the GNU General Public License along with other free software licenses. Debian GNU/Linux, which includes the GNU OS tools and Linux kernel, is a popular and influential...

, some FreeBSD ports and some Russian Ubuntu repositories.