Editing Irssi (section)

==Features==
Irssi is written in the [[C (programming language)|C programming language]] and in normal operation uses a [[Text user interface|text-mode]] user interface.<ref name="Danen">{{cite web |first=Vincent |last=Danen |work=TechRepublic |date=May 5, 2008 |title=Try IRC with Irssi to communicate via chat |publisher=ZDnetAsia.com |access-date=2010-10-18 |url=http://www.zdnetasia.com/techguide/opensource/0,39044899,62040926,00.htm |archive-url=https://web.archive.org/web/20091227104809/http://www.zdnetasia.com/techguide/opensource/0,39044899,62040926,00.htm |archive-date=December 27, 2009 |url-status=dead }}</ref>

According to the developers, Irssi was written from scratch, not based on [[ircII]] (like [[BitchX]] and epic).<ref name="Aboutarchive"/> This freed the developers from having to deal with the constraints of an existing codebase, allowing them to maintain tighter control over issues such as [[computer security|security]] and customization.<ref name="Aboutarchive">{{cite web
 |title=About
 |first=Timo |last=Sirainen
 |publisher=Irssi.org
 |url=http://www.irssi.org/?page=about
 |archive-url=https://web.archive.org/web/20010405012338/http://www.irssi.org/?page=about
 |archive-date=2001-04-05
}}</ref> Numerous [[Perl]] [[script (computer programming)|scripts]] have been made available for Irssi to customise how it looks and operates.<ref>{{cite book
 |first=Wilmer |last=Van der Gaast
 |title =IRC hacks
 |chapter=Enhance irssi with Perl
 |editor=Paul Mutton
 |publisher=[[O'Reilly Books]]
 |year=2004
 |page=84
 |isbn =0-596-00687-X
 |chapter-url=https://books.google.com/books?id=MbHAnBh9AqQC&q=irssi+&pg=PA353}}</ref> [[Plug-in (computing)|Plugin]]s are available which add encryption<ref>[http://penguin-breeder.org/silc/ SILC encryption plugin]. penguin-breeder.org</ref><ref>[https://github.com/falsovsky/FiSH-irssi FiSH encryption plugin]. Secure.la.</ref> and protocols such as [[ICQ]] and [[XMPP]].<ref>[http://developer.berlios.de/projects/irssi-icq/ ICQ plugin sourcecode] {{webarchive|url=https://web.archive.org/web/20060719195902/http://developer.berlios.de/projects/irssi-icq/ |date=2006-07-19 }}. berlios.de.</ref><ref>Didier, Colin [https://cybione.org/~irssi-xmpp/ Jabber/Xmpp plugin]. cybione.org.</ref>

Irssi may be configured by using its user interface or by manually editing its [[configuration file]]s, which use a [[syntax]] resembling [[Perl]] data structures.<ref name=" Danen"/>