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Introduction

Texteditorisakindofcomputersoftware.Mainlyusedtowriteandviewtextfiles.Therearesomespecialtexteditorsthatsupportaddingtheirownformatstoenrichthepresentationformofthedocument.Theoperatingsystemorintegrateddevelopmentenvironmentusuallyhasaneditorthatcanviewandeditplaintext,andthetexteditorthatcanincreasetheformatisusuallyusedbyindividualusersorcompaniesintheproductionoffilesthatrequireaformat.Becauseprogramsandprogramconfigurationfilesareusuallystoredinplaintext,programmersalsoneedtouseaplaintexteditortoeditprogramsandconfigurationfiles.

Texteditorsundercommonsystems

CommononesareNotepadunderWindows,texteditorunderMacOSX,vi,LinuxunderLinuxemacs,gedit,editunderDOS,etc.

Useundereachsystem

1.Windowsstart/run,entertheeditcommandtoenterthetexteditortoeditthetext;youcanalsoentereditundercmdtoenterthetexteditor.Thetexteditorissimilartotheclanguageinterface.Itisaverypracticaltexteditingsoftware.

2.ForMacOSX,findthetexteditor.app(sourcename:TextEdit.app)intheapplicationfolderunderthediskorLaunchpad(MacOSXLion10.7orabove),andopenit.Createanewdocumentandimplementediting.Texteditingsupportsrichtextformat(.rtf),richtextformatwithattachments(.rtfd),(.html),Webarchive(.webarchive),OpenDocumenttext(.odt),Word2007format(.docx),Word2003format(.xml),Word1997format(.doc)andplaintext(.txt)fileproduction,andexportoftheabovefilesinportabledocumentformat(.pdf).ThetexteditorcanopenalmostalldocumentformatscompatiblewithMacOSX.

3.EntertheterminalunderLinux,enterthenameofthetexteditor,andpressEntertorun.

Type

Sometexteditorsareshortandpowerful,andsometexteditorsproviderichandcomplexfunctions.Forexample,bothUnixandUnix-likeoperatingsystemsprovidethevieditor(oritsvariants),butsomeoperatingsystemsalsoprovidetheEmacseditor.Windowssystemprovidesaverysimplenotepad,butmanypeople,especiallythoseprogrammers,preferothereditorswithricherfunctionsunderWindows.IntheclassicMacOSofAppleMacintosh,SimpleTextwasincluded.Later,TextEditreplacedit.Someeditorssupporttwomodesofoperation,bothasatexteditorandasawordprocessor.WordStarisanexample.

Thetexteditorsusedbyprofessionalcomputerusersoftendonotlimitthesizeofopenfiles.Sucheditorsstillstartquicklywheneditinglargefiles,andtheycanalsoeditfilesthatexceedthememorysize.Asimpletexteditorusuallyreadsthefiledirectlyintomemory.Inthisway,thespeedisslowerwhenprocessinglargerfiles,anditsimplycannotbeprocessedforlargerfiles.

Professionalcomputersneedtheabilitytohandlelargefiles.Forexample,systemadministratorsneedtoreadverylonglogfiles;programmersneedtomodifyverylargesourcecodefiles,orcheckunusuallylargefiles,suchasfilesusedtostoreentiredictionaries.

Sometexteditorscontainspecialcomputerlanguages,whichcanbecustomizedusingthislanguage(programmableeditor).Forexample,youcancustomizeEmacswithLispprograms.Usingthismethod,theusercanusuallysimulatetheshortcutkeycombinationofacertaineditorandsomeotherfeaturesasanothereditor,sothattheuserdoesnotneedtolearnthecommandcombinationofthiseditor.

TherearealsosomeprogrammableeditorsthatuseREXXastheirscriptinglanguage.TheseeditorssupportdirectinputofcommandsorREXXstatementsatthebottomofthescreen.Peopleusuallythinkoftheseeditorsasorthodoxeditors.Inthistypeofeditor,themostrepresentativeisthefollow-upproductofXedit,andXeditisIBM'seditorinVM/CMS.Somevifollow-upproducts,suchasVim,alsosupportfoldingandmacros,andtherearecommandlinesatthebottom.Peoplethinkofthemasanotherkindoforthodoxeditor.

Manytexteditorsusedtodevelopsoftwaresupportsyntaxhighlightingandauto-completionofsourcecode,whichmakestheprogrameasiertoreadandwrite.Theprogrameditorusuallyallowsyoutoselectasubroutineorvariable,thenjumptoitsdefinitionpart,andthenjumpbacktotheoriginalposition.Additionaltoolslikectagsarespecificallyusedtolocatethedefinitionpart.

Withthedevelopmentofcomputernetworks,texteditorsthatcanbeeditedbymultiplepeoplehavebeenborn,suchasNetpadundertheWindowsoperatingsystem,whichallowsmultiplepeopletoeditorreadthesametextfileatthesametime.

Therearealsosomegoodopensourcetexteditors,suchasNotePad++,PSPad,Komodo,Coda,etc.

Typicalfunctions

FindandReplace

Findawordoracharacterstringinatextfile,andreplaceonecharacterstringwithanothercharacterstring.Variousmethodscanbeadopted:globalsearchandreplacement,conditionalsearchandreplacement,andunconditionalsearchandreplacement.

Cut,Copy,Paste

Mosttexteditorssupportcopyingormovingwithinorbetweenfiles.

Texttypesetting

Texteditorsusuallysupportbasictypesettingfunctions,suchasscrolling,automaticindentation,linenumbertypesetting,commenttypesettingandsoon.

Undoandredo

Likewordprocessors,texteditorsalsosupportundoandredo.Usually,especiallyoldtexteditors,onlysupportone-leveleditinghistory,andcanonlyundoorrestoretothelastchange.Modernandcomplextexteditorssupportmulti-leveleditinghistory,sothatitcanbeundoneorrestoredtoanyhistoricalstate.Thenumberofchangesthatcanberecordedvarieswithdifferenteditors,andisusuallyconfigurable.

Import

Readormergethecontentofanothertextfiletothefilecurrentlybeingedited.Sometexteditorssupportinsertingtheoutputofoperatingsystemcommands.

Filtering

Someadvancedtexteditorsallowyoutosendthefileyouareeditingtoanothertoolandreadbackthefilteredresultstothisfile.Forexample,thismethodcansortsomerows,orperformmathematicalcalculations.

History

Aboxofpunchedcardscontainingseveralprograms.

Beforetheadventoftexteditors,peopleusedpunchingmachinestopunchcomputertextonpunchcards.Thetextisstoredinaboxcontainingsuchathincard,whichcanbereadwithacardreader.

Thefirsttexteditorisalineeditor,whichrunsonatypingterminal.Thiseditordoesnothavethefunctionofdisplayinginwindowsandscreens.Itcontainssomeveryshortcommands(inordertoreducetheamountoftyping).Oneofthecommandscanprintoutthespecifiedpartofthefilethroughatypewriter.Theeditcursorisanimaginaryinsertionpoint,whichcanbemovedtothelinewherethespecificcontentstringislocatedthroughspecialcommands.Subsequently,thecontentstringwasexpandedintoregularexpressions.Ifyouwanttoseethechangesinthefile,youneedtoprintitout.Comparedwiththepuncher,peoplethinkthatthisline-basedtexteditorisarevolutionaryadvancement.Withoutit,usersneedtomarkthosecommandsforprocessingtextintospecialcardsandusethesecardswheneditingfiles.

Whencomputerterminalswithdisplayscreensappeared,texteditorsbasedondisplayscreensbecamepopular.Oneoftheearliestfull-screeneditorswascalledO26,whichwasmadein1967fortheoperationconsoleofCDC6000seriesmachines.Anotherearlyfull-screeneditorwasvi.viwasborninthe1970s,anditisstillthestandardeditorforUnixandLinux.Thefull-screeneditorhasplayedaroleinpromotingthesalesofvideoterminals.

Comparison

Thistablecomparesthegeneralinformationofeacheditor:

p>p>

Attribution

Timeoffirstpublicrelease

Lateststableversion

Price(USD)

ReleaseAgreement

GNUEmacs

GNUProject

1975

23.3

Free

GPL

nvi

BillJoy

1976

1.79

Free

BSDlicense

Notepad

Microsoft

1985

6.0

BelongingtoWindowssystem

Proprietary

vim

BramMoolenaar

1988

7.3

Free

GPL-compatible

Alphatk

Alpha-developmentcabal

1990

8.0

$40,shareware

ThekernelisnotopensourceandcontainsBSDcomponents

XEmacs

LucidInc.

1991

21.0

Free

GPL

TextPad

HeliosSoftwareSolutions

1992

4.7.3

$29

Sharesoftware

BBEdit

RichSiegel

April1992

8.2.3

$199;teachinguse$49

Proprietary

JOE

JosephAllen

1992(?)

3.3

free

GPL

Acme

RobPike

1993

Releasedwiththe4theditionofPlan9

Free

LPL(OSIapproved)

UltraEdit

IDMComputerSolutions

1994

12.00

$40

Proprietary

Zeus

XidiconeP/L

1995

3.95f

$39.95

Proprietary

EditPlus

ES-Computing

March20,1998

3.20

$35/person

Proprietary

jEdit

SlavaPestov

1998(?)

4.2

Free

GPL

Alphatk

VinceDarley

1999

8.3.3

$40

Proprietary,containsBSDcomponents

Bluefish

BluefishDevTeam

1999

1.0.4

Free

GPL

ConTEXT

EdenKirin

1999

0.98.2

Free

Proprietary

Nano

GNUProject

1999

2.0.9

Free

GPL

gedit

GNUProject

2000

2.16.2

Free

GPL

KWrite

KDE

2000

4.5.3

Free

GPL

Kate

KDE

December2000

3.5.3

Free

GPL

PSPad

JanFiala

2002

4.5.2

Free

Proprietary

AkelPad

AleksanderShengalts,AlexeyKuznetsovandothercontributors

2003

4.5.4

Free

BSDlicense

AptEdit

BrotherTechnology

2003

4.8.1

$44.95

SpecialYes

SubEthaEdit

TheCodingMonkeys

2003year

2.1.1

$35commercialuse

Proprietary

Notepad++

HouJinwu

November25,2003

6.1

Free

GPL

ProfessionalNotepad

ATechGroup

2004

2.9

$18

Proprietary

RainbowTextEditor

ChenChi-Shun

November2004

3.8

Free

Proprietary

Notepad2

FlorianBalmer

April2004

4.2.25

Free

GPL

MadEdit

madedit

2006

0.2.9

Free

GPL

Netpad

OriginallyownedbyNetSoftInc.

2008

1.0.3

Free

GPL

CrimsonEditor

IngyuKang

?

3.7

Free

Opensource,usecertificateunknown

Pico

UniversityofWashington

?

4.64

Free

Proprietary

NeoeEditneoedmund

2009

r220FreeBSDlicense
SiphoninkBGLL20112.5.1.0FreeProprietary

Attribution

Timeoffirstpublicrelease

Lateststableversion

Price(USD)

ReleaseAgreement

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