InternalMemoToCedarInterestDateSeptember15,1982FromBillPaxtonLocationPARC/ISLSubjectFancytabsFileTiogaTabs.tiogaXEROXReleaseas[Indigo]Documentation>TiogaTabs.tiogaLasteditedbyPaxton,September15,19827:33amAbstractThisisaspecificationforfancytabsinTioga.IntroductionTabsarenotasubstituteforgeneralalignmentfacilites,buttheyarerelativelyeasytoimplementandcanhandleasubstantialsetofformattingproblems.Thegeneralfacilitiestosupporttablesandotherstructuredobjectswon'tbeavailableuntil'83,soIproposetoimplement"fancytabs"nowratherthanwaiting.Thesewillallowbothachoiceofalignmentandafillpatternforeachtabsetting.Thealignmentswillincludeflushleft,flushright,centered,andcharacteraligned.Thefillchoiceswillprovideforleadersandrulesinthetabgap.ThisfunctionalityisessentiallythatofBravoXwithafewgeneralizations.SpecificationFollowingtheusualTiogaconvention,theformattinginformationforthetabwillbecontainedinthestyle.Thetabcharactersinthedocumentwillnothaveanyspeciallooks;theysimplyservetoseparatesectionsoftext.Thestyledetermineswherethetabstopsarelocatedandthepropertiesofeachstop.Thelocationsaregiveninthestyleasadistancewhichisrelativetoeithertheleftmarginortheleftofthepageorviewer.Thepropertiesgovernalignmentandfill.LocationsfortabstopsThefirsttabinalineoftextwillbeinterpretedaccordingtothestyleforthefirsttabstop,thesecondtabaccordingtothesecondtabstop,etc.Thismaysoundobvious,butitisn't.Itisunlikethecommoninterpretationwhich,likeatypewriter,findsthenexttabstopafterthecurrentlocation.Ourinterpretationissuperiorbecauseitallowstheusertoknowthemappingfromtabcharactertotabstopindependentofthewidthofthetexttotheleftofthetab.Theminimumwidthforatabisonespaceinthecurrentfont.Youaregivencontrolinthestyleoverwhattodoifthereisnotenoughroomavailableforthetab(i.e.,thelocationonthelinewherethetabisencountereddoesn'tleaveroomforaspacebeforethedesiredtabstop).Thedefaultistotreatthetablikea(fixedwidth)space.However,thereisalsoanoptiontotreatit1pНўОaШНМqН ЛО^rНРО^qН+╞О^rН6О^sН<КО^Н=°О^rН>LО^Н?)О^qН ЛОZ3rНРОZ3Н┤qН+╞ОZ3rН6ОZ3sН:√ОZ3Н;ОZ3qН ЛОVOrНРОVOНqН+╞ОVOrН6ОVOtН{ОNўqНMОD╧НUrН ОD╧П,qНMОCН ЇНrН ОCsН%ОCНОCНХН!%Н$kН'zqНMО@▀sН О@▀Н'Н⌠НҐН ═Н"чН&⌠Н)vН+$pНMО<^rНўО9НН┐ННG Н▒НАН#гН*E Н/╟Н2DН5gН7м Н=рН@ХНB╙НўО7]НXНвНQНn Н1Н AН!М Н(╔Н/oН2;Н7 НhНBБНF▀НўО4НшН"НН3Н ЪН$хН(%Н)oН-тН/ґН69Н9Н:ZН<╒НA│НCчНG/НўО2gНФН╨ Н╔НLН#'Н&√Н)_Н,мН0sН6WН9 Н>ННD■НGhНўО0юН⌠Н[Н┌НшН ÷Н#sН&КН(ІН+2Н-ґН1cН4≥Н<╩Н>C НDКНGжНўО/Н╦НрНЭН²pНMО*КrНўО'▓Н=Н╛Н[НK Н$дН'3 Н. Н5═Н7МН:\Н<кН?├НA├НGАНўО%ЙН ННСНR НюН nН"нН);Н+ГН.\Н1ёН4DН8юН<вН?ХНDXНGЮНўО$CНН'НЮНўО!юНН╗ Н╗Н╧Н Н"jН%АН(.Н,ЕН/√Н1Н Н8_Н:Н=;НAНCтНўО ННІНdНдНТНёНмН"Н&)Н'∙Н,tН."Н2Н4oН6ДН;√Н=ZН?╨НB/НCИНFHНўОqНqН╡Н┼ НН!▓Н'ЧН*╣uНўОНН>Н²rНОKНПНрН;НРН&НФН╗Н jН#Н% Н,5Н2~Н46Н6÷Н9ыН< Н>┴НAkНCтНG/НОєНдНHН╛НН Н$╧Н'=Н*ЁН. Н1IН4qН8ґН>JН@ПНBjНF┬НH#НОЩН4НН Н"їН&ЗН)▒Н*ї Н1yН4ьН7$Н: ННCкНG/НОўНВН╔ННЪ Н"НН$їН'Н*ХН,║Н/Н1╦Н3gН5фН8;Н9ТНГНCIНEНH9vН)хОЖ√TVm$≈╨НЦНН>НЛН ║Н!кН$┌vН)хОЖЪ©TVm$╒Н)lН,JН/Н2БН7BН8ЁН<яН>┘ НD╙НGАvН)хОЖЪИTVm$╡БН2⌠Н7∙Н9уНAnНCНG/vН)хОЖTVm$аlikeacarriagereturntocausealinebreak.Thelinebreakoptionisusefulinsituationssuchasformatsfordescriptionsinwhichthewordorphrasebeingdescribedappearsatthestartofanode,followedbyatabandthedefiningtext.Thetabstopislocatedatthesamedistancerelativetotheleftmarginasthehangingindentfortheotherlinesoftheparagraph.Forshortitems,thetextafterthetabwillstartonthefirstlinewiththesameindentasthefollowinglines.Forlongitemsinwhichtheinitialwordorphraseextendsbeyondtheamountofhangingindent,thetabwillcausealinebreaksothatthedescriptionwillstartonthenextline.AlignmentfortabsTabstopscanhaveeitherflushleft,flushright,centered,orcharacteralignment.Foraflushlefttab,lineformattingcontinuesfromthelocationofthestop.Fortheothercases,thesystemfirstfindstheblockoftextuptothenexttab,carriagereturn,orendofnode.Thisblockisthenshiftedleftfromthestopuntilthedesiredalignmentisachieved.Iftheblockoftextistoobigtobealignedwhilestillleavingagapofatleasttheminimumsize,thetabistreatedlikeafixedwidthspaceoracarriagereturnasdescribedabove.Forflushright,thedesiredalignmentistohavetherightofthetextatthestoplocation.Forcentered,itistohavethecenterofthetextatthestop.Forcharacteralignment,thepartoftheblockuptobutnotincludingthespecifiedcharacterissetflushrighttothestopwiththerestoftheblockimmediatelyfollowing.Atypicaluseofcharacteralignmentistoprovidedecimallyalignednumbers.FillfortabsYoumayspecifyinthestylewhatfill,ifany,istoappearinthegapleftforthetab.Thechoicesforfillareasfollows:blankputnothinginthegap.leadersrepeataspecifiedcharactertofillthegap.rulesdrawoneormorehorizontallinesinthegap.Forleaders,youmayspecifyboththecharactertorepeatandthespacingbetweenrepetitions.Youmayalsochooseeithercenteredorcongruentplacementofthecharacters.Theformermeansthatthesequenceofcharacterswillbecenteredinthetabgap.Thelattermeansthatthesequencewillbebeginatalocationonthepageorviewerwithahorizontalcoordinateequaltozeromodulothespacingsothatdifferentlinesofleaderswillbealignedindependentoftheirstartorendpositions.Forrules,youmayspecifyboththethicknessofthelineanditsverticaloffsetfromthebaseline(positiveornegative).Therulesaredrawnthefullwidthofthegapcreatedforthetab.LooksassociatedwithtabstopsTablesoftenusespecialformattingsuchasputtingthefirstcolumninavariablepitchtextfont,othersinafixedpitchfontfornumbers,andperhapsthefinalcolumninboldfacetohighlightvarioustotals.Bydefiningdefaultlooksforthevarioustabstops,wecangetthiseffectwithouthavingtoaddanyexplicitlookstotheentries.Thedefaultlooksforagiventabstopareautomaticallyappliedtothetextfollowingthetabuptothenexttabortheendoftheline.Forexample,ifatabstophaddefaultlook"b",thenthetextinthecolumndefinedbythatstopwouldautomaticallyappearinboldface.Defaulttabstops2rНОb)Н╨НЦНН>НЛН ║Н!кН$┌НoО_╙НCНУНфНН└Н"≤Н$A Н*\Н-┴Н/2Н4-Н6fН=ЬН?╒НC╚НFНoО^НKНхН╙НМН%Н&юН)7Н,^Н./Н/pН3SН9Н;"НшНA╙НD!НoО\[Н=Н2Н╞НеНNН")Н#ъН&\Н)ЖН/aН4\Н6(Н8єН;6Н@НAпНDMНoОZЄНҐНЫНWНУН.Н ФН#D Н*÷Н-IН0фН4фН7$Н9зН=Н?rНAпНDzНG┴НoОYНЮНйН▓Н©Н0Н ©Н% Н&ЮН)QН/uН3╞Н6lН9≈Н=SН?НC2НEёНoОWeННпН?НJН#>Н%їН*╪Н,Н1кН6}Н8ГН;PН>НAеНBЬНE╧НoОUЎН3ННa НsН Н#.Н%4Н'■Н*ёuНўОRiНDНvrНОO║НчНTНвННЗН!eН$*Н'∙Н+7Н1Н2сН8Ё Н?ЙНB█НC╞НGНОMЗНфН} НAН kН#рН&2Н+iН-!Н/│НОK{Н╧ННЇН┌НАН![Н$3Н'╔Н*Н-дН/}Н24Н4FН5ТН8SН;bН>НCDНGкНОIсН╪НjН╔Н╣НkНлН!ХН&eН(пН,-Н.┐Н1rН4╞Н7Н;цНB%НC├НОH,Н█НИНіН\ННxНъН :Н!ФН#сН(ёН,UН.РН3╛Н4рН7pН9&Н:╩Н=щН@9НF▀НОF┘НnНмН9НжН┌Н╛Н )Н$Н'юН)└Н*ўН/зН4Н5ІН;АНoОDНН█Н7Н≈Н `Н&кН(7Н)ФН-,Н/▄Н2щН4√Н6ЖН9ўН;FН=іН@÷НoОA├НННYНеНsН╨Н"Н&=Н'ЖН*UН- Н.іН1НoО?Н Н НbН!гН$╟Н&nН(тН,≥Н.╠Н0eН2КН5fН;─Н=ЕНCіНoО=_НыНУНfНЇНdНбН ╨Н#тН&2Н(рН*┴Н,ГН0і Н8| Н?gН@СНEbНGжНoО;╦НXНцН/НчН#ХН*Н.ПuНўО8cН8НjrНО5⌡НН Н÷НCН≤НЎН#Н%├Н&щН)лН+-Н,яН1NН2РН5GН7чН:IН<|Н>яНAЬНDфНО3ТНLНsНфНtНoО1uНEН*Н╚НаНoН оНoО.УННЭН*НTН!Н&ЫН(їН*нН--НoО,vНлН╠Н#НоН⌠Н & Н&їН)БН+░Н-ПНО)ЖНжНРНфНГН ═Н#ЫН&uН,zН.EН2▒Н5eН7АН<ХНBsНО(OННЖНґННТН$oН&Н,Н3Н4іН6П Н> Н@пНEKНО&╗НфННЮН┐ Н ыН#nН%HН*аН,YН.╒Н0ЙН4:Н6ШН:yН>іНA^НCіНО%НКНННуН1Н≥Н!яН$cН'шН)яН.gН1ЄН3 Н9ц Н@╧НD╚НF▀НО#YН&Н┤НsН8НН$╟Н'ЛН)їН.PН0ЩН2ПН7е Н?ІНAqНD╧НGкНО!╡Нф НО2НҐНtН.Н5НуН"Н$vН*aН,Н.─Н19Н3ТН5яН:╗Н>vНAЮНDBНО▀Н²Нa Н$НЩН"YН$╛Н(ФН+EН-пН1╡Н3kН5йН8kН=5Н?rНAрuНўО6Нз НqНuНсrНОoНzНН▒Н Н#ъН'Н(мН-·Н0Н2ДН7ЮН9∙Н:фН@НC┼НFHНОгН<НТН'Н╞Н8Н0Н!wН'┼Н*KН/┌Н1ЛН5%Н:$Н;эН?НBНCҐНО НшНkН▄НЪН#╛Н'OН)▒Н+УН0бН3'Н7Н9.Н;ЎН>Н@╡НD┐НОyНгН╡НїН┘Н√Н#qН%]Н'ЫН-юН0уН5╨Н9∙Н<Н=wНAhНDНG;НОяННfННoН"$Н(4Н*▒Н,НН.ЩН0╘Н3Н6Н8pН:1Н<▌Н?CН@ЫНCVНFЦНО*НН│НлНLНfН>Н$Н'AН*fН-ґН0-Н3Н4тН7TНtellshowtofillthegapleftforthetab.Thedefaultforisblank.Alignments=flushLeft|flushRight|centered|aligned=asinglecharacterstringsuchas"."Fill=blank||rule|{}rules=[][centered|congruent]leadersTheisthecharactertoberepeatedinthetabgap.The'senclosenamesofdefineditems,and|'sseparatealternatives.SettingatabstopTocreateatabstopaspartofastylerule,includeastatementoftheform=tabStopwhere=anumbersuchas2.5inor32pt,and=[][][][]Thetellshowthetextfollowingthetabistobealignedrelativetothetablocation.ThedefaultforisflushLeft.Thetellshowtofillthegapleftforthetab.Thedefaultforisblank.Thetellswhattodoifyouarealreadybeyondthetabstopintheline.Thedefaultistotreatthetablikeafixedwidthspace.=looksThecontainsthe(lowercase)lettersforthedefaultlooks.Alignments=flushLeft|flushRight|centered|aligned=asinglecharacterstringsuchas"."Fill=blank||rule|{}rules=[][centered|congruent]leadersTheisthecharactertoberepeatedinthetabgap.Theisthedistancebetweenthecharacters.Ifisomitted,thesystemwillpicksomethingpleasingsuchastwicethecharacterwidth.Congruentleadersarethedefault.=Theisthethicknessofthehorizontalline.Theistheverticaldistancefromthebaselinetothebottomoftheruleandmaybeeitherpositiveornegative.Whattodoifpastthetabstop=breakIfPast|spaceIfPastTheformermeanstreatthetablikeacarriagereturnandthelattermeanstreatitlikeaspace.Miscellaneouscommands3rНОb)Н┼ННjН Н4Н┌Н$ЦН&5Н(щН/;Н0wН3LН4КН6Н8ўН╔НAфНDяНО`┌Н╛НYН°Н1НН!2Н#Н%9Н)чН/`Н1ИН6AН:xН<УНBНGЮНО^зНЮНsНыН╪Н!Н&dН'ЕН+╞Н-rН.╠Н4Н9Н:кН=?НBДНFЦНО]3НнННkН┼НЯН!Н$Н(╙Н*ЬН.╪Н1яН5=Н7вН9ІН>cН?ЙНA НDНО[▄НJН╘Н) НН!pНMОWfН┼НvНrНўОTНФН╒Н3Н{ Н ю Н'ЯН)иН,GН2,Н3ЫН6 Н9cН;0Н?НCЖНG/НўОRmНМН╟ННН""Н"ЭН$ЁН)zН.пН2дН3ЛН5ПН:ЇН>НН@ НE█НўОPеНeННvuНўОMsНuН╙НrНОJўН5Н8НbНаН╩НiНMН!Н"/Н%`Н(░Н-oН.≥Н4оН6┬Н8ГНoОH1 ННК Н┌Н&НОEЁНoОC6 ННЛННBН!sН#!Н%^Н'Н(пН*╣Н,гНoО@╦НЧНЦНq Н$VН,/НпО>;Н╠Н┌НnН{Н ЦН#єН)©Н,'Н.▐Н0Н1╩Н3╣Н8▒Н=xН?0НA≤НDНпО<⌠Н╗НPН▌НUН а НпО:Н╗НгН╙Н╞Н!]Н#└Н%ДН(┘Н*ЗН-7Н/√Н2рН5╙Н:RН<░НB╞НDНпО7≤Нл НН Н!┼Н#]Н%┤Н'Н)ГН,^Н1UН6cН8ФН;jН>┤Н@YНBщНFЇНпО5ЯНxНДН▓НцН#Н ┌Н#.Н$WН'уН+ЇНoО3s Н<Н!НWНпО0ЖН╗НъНBН ║ Н'хН+АН.Н0~Н5&wНО.1 rНoО+╡Н7НННЮ Н#іН$┌Н*Н*ОН/_НoО)5НЮНеНОНзН цН$≤Н'йН)xwНО&prНoО#РН▐НtНIН&Н".Н# Н'CН*Н*ЬН,-Н0ЙН2НoО!tНwН\НмН ∙Н&┴Н'e Н.@НпОВН²ННdН╦Н!√Н#:Н% Н*╟Н,SН.їН0ЭН4cН70Н;(Н<┴Н>щНD НпОOН% НZНрНйН!,Н&▒Н(ФН-WН/ЫН2СН9▄Н>зНBНC╔НG/НпО╗Н╧НvН"QН&ЬН)KН+╚НoО*Н╗Н█Н_НпОґН╘НzНГНGН#/Н$ИН'H Н-йН1^Н46Н89Н9╔Н<Н@зНF(НпОН/Н|Н+Н┼Н!SН#Н%lН(DН*ШН-ЪН/ПН3эН8РН:ІwНОAНяНvН[Н╠Н┼НжН,rНoОб Н┌Нg НєН │ НпО EН■ННAН^Н!╙Н#ЖН&█Н'ёН,╩Н0жН3yН5еН9EН=uН@▓НAуНDlНE┌uНўО СНґvН)хОjTVm$upsToreadthecurrentspecificationfordefaulttabstops,usethefollowingstatementtopushafulldescriptionontheJaMstack=thedefaultTabStopsClearingstopsThecommandclearTabStopswillremovealltabstops.Thisshouldbeusedbeforeyoustartmakingnewsettings.FixedorrelativetabstopsTocontroltheinterpretationoftablocations,useeitherofthesestatements:=relativetabStops|fixedtabStopsRelativemeansthattablocationsaremeasuredfromthelSettingdefaulttabstopsTosetthedefaulttabstops,useastatementoftheform=defaultTabStopsToreadthecurrentspecificationfordefaulttabstops,usethefollowingstatementtopushafulldescriptionontheJaMstack=thedefaultTabStopsClearingstopsThecommandclearTabStopswillremovealltabstops.Thisshouldbeusedbeforeyoustartmakingnewsettings.FixedorrelativetabstopsTocontroltheinterpretationoftablocations,useeitherofthesestatements:=relativetabStops|fixedtabStopsRelativemeansthattablocationsaremeasuredfromtheleftmargin.Fixedmeansthattheyaremeasuredfromtheleftedgeofthepageorviewer.ReadingtabstopsfordebuggingpurposesYoucanreadthecurrenttabsettingsbyusingthefollowingstatement.=forEachTabStopForeachtabstop,thispushesafulldescriptionontheJaMstackandthenexecutes.4wНОb&Н╪Н;Н░rНoО_╚Н√НЁНН╩НН ПН#eН$▐Н*еН,~Н.щНпО]0 НfНKНNН$эНoОZ╣НўНЮНWН9Н$4Н&┴Н+IН-юН1ўН4;Н6╡Н<эНC*НDПНHeНoОYНЗ НННrН ▄НпОV⌠ НfНKН╚wНОSяН∙rНoОQVНWНхН!╨Н$uН)nН+nН-щН2WН5│Н:Н< Н?YНC╦НFНoОO╞НXНFwНОLМНДН²Н]НЁrНoОJrН√НIН╗ Н!HН#Н%` Н+sН-ХН1уН3▌Н7 НпОGВ НfНKН*Н$фН%╒Н) НoОE|НФН?Н!Н∙Н$dН&лН-Н0▒Н3Н5▌Н;DН?DНC°НFНoОCуНцНЬН_НЎН 3Н#zН%3Н'▓Н*ыН,°wНОAН^НЁНН9Н!╗rНoО>≤Н~Н Н$Н┐НMН!╛Н&√Н(▓Н,;Н.⌡Н4ґ НпО< НfНKНг НoО9╒ННKН╚НЩН·Н"%Н#OН%з Н,ЛН.РН1RН4lН7ъН:≈Н=ҐНC7vН)хОЖ*TVm$g TIMESROMANЧ÷ HELVETICAЧ÷ TIMESROMANЧ÷LOGOЭЄLAURELЧ÷ TIMESROMANЧ÷ TIMESROMANЧФ TIMESROMANЧY²╗уЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪTiogaTabs.press 7-Sep-82 10:21:56j/!≥╞N⌠ЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪЪTiogaTabs.press15-Sep-82 8:02:43