Manual Pages for UNIX Darwin command on man terminfo

TERMINFO(5) File Formats TERMINFO(5)

NAME

terminfo - terminal capability data base

SYNOPSIS

/usr/share/terminfo//

DESCRIPTION

Terminfo is a data base describing terminals, used by screen-oriented

programs such as nnvvii(1), rroogguuee(1) and libraries such as ccuurrsseess(3X). Terminfo describes terminals by giving a set of capabilities which they have, by specifying how to perform screen operations, and by specifying padding requirements and initialization sequences.

Entries in terminfo consist of a sequence of `,' separated fields

(embedded commas may be escaped with a backslash or notated as \054). White space after the `,' separator is ignored. The first entry for

each terminal gives the names which are known for the terminal, sepa-

rated by `|' characters. The first name given is the most common abbreviation for the terminal, the last name given should be a long name fully identifying the terminal, and all others are understood as synonyms for the terminal name. All names but the last should be in lower case and contain no blanks; the last name may well contain upper case and blanks for readability. Terminal names (except for the last, verbose entry) should be chosen

using the following conventions. The particular piece of hardware mak-

ing up the terminal should have a root name, thus ``hp2621''. This name should not contain hyphens. Modes that the hardware can be in, or user preferences, should be indicated by appending a hyphen and a mode

suffix. Thus, a vt100 in 132 column mode would be vt100-w. The fol-

lowing suffixes should be used where possible: SSuuffffiixx MMeeaanniinngg EExxaammppllee

-nn Number of lines on the screen aaa-60

-np Number of pages of memory c100-4p

-am With automargins (usually the default) vt100-am

-m Mono mode; suppress color ansi-m

-mc Magic cookie; spaces when highlighting wy30-mc

-na No arrow keys (leave them in local) c100-na

-nam Without automatic margins vt100-nam

-nl No status line att4415-nl

-ns No status line hp2626-ns

-rv Reverse video c100-rv

-s Enable status line vt100-s

-vb Use visible bell instead of beep wy370-vb

-w Wide mode (> 80 columns, usually 132) vt100-w

For more on terminal naming conventions, see the tteerrmm((77)) manual page. CCaappaabbiilliittiieess The following is a complete table of the capabilities included in a

terminfo description block and available to terminfo-using code. In

each line of the table,

The vvaarriiaabbllee is the name by which the programmer (at the terminfo

level) accesses the capability. The ccaappnnaammee is the short name used in the text of the database, and is used by a person updating the database. Whenever possible, capnames

are chosen to be the same as or similar to the ANSI X3.64-1979 standard

(now superseded by ECMA-48, which uses identical or very similar

names). Semantics are also intended to match those of the specifica-

tion. The termcap code is the old tteerrmmccaapp capability name (some capabilities are new, and have names which termcap did not originate). Capability names have no hard length limit, but an informal limit of 5 characters has been adopted to keep them short and to allow the tabs in the source file CCaappss to line up nicely. Finally, the description field attempts to convey the semantics of the capability. You may find some codes in the description field: (P) indicates that padding may be specified

#[1-9] in the description field indicates that the string is passed

through tparm with parms as given (#i).

(P*) indicates that padding may vary in proportion to the number of lines affected

(#i) indicates the ith parameter.

These are the boolean capabilities:

VVaarriiaabbllee CCaapp- TTCCaapp DDeessccrriippttiioonn

BBoooolleeaannss nnaammee CCooddee

autoleftmargin bw bw cub1 wraps from col-

umn 0 to last column

autorightmargin am am terminal has auto-

matic margins backcolorerase bce ut screen erased with background color

canchange ccc cc terminal can re-

define existing col-

ors ceolstandoutglitch xhp xs standout not erased by overwriting (hp) coladdrglitch xhpa YA only positive motion for hpa/mhpa caps cpichangesres cpix YF changing character

pitch changes reso-

lution crcancelsmicromode crxm YB using cr turns off micro mode desttabsmagicsmso xt xt tabs destructive, magic so char (t1061) eatnewlineglitch xenl xn newline ignored

after 80 cols (con-

cept)

eraseoverstrike eo eo can erase over-

strikes with a blank generictype gn gn generic line type hardcopy hc hc hardcopy terminal hardcursor chts HC cursor is hard to see hasmetakey km km Has a meta key

(i.e., sets 8th-bit)

hasprintwheel daisy YC printer needs opera-

tor to change char-

acter set hasstatusline hs hs has extra status line huelightnesssaturation hls hl terminal uses only HLS color notation (Tektronix)

insertnullglitch in in insert mode distin-

guishes nulls lpichangesres lpix YG changing line pitch changes resolution memoryabove da da display may be retained above the screen memorybelow db db display may be retained below the screen moveinsertmode mir mi safe to move while in insert mode movestandoutmode msgr ms safe to move while in standout mode needsxonxoff nxon nx padding will not work, xon/xoff required noescctlc xsb xb beehive (f1=escape, f2=ctrl C) nopadchar npc NP pad character does not exist nondestscrollregion ndscr ND scrolling region is

non-destructive

nonrevrmcup nrrmc NR smcup does not reverse rmcup

overstrike os os terminal can over-

strike prtrsilent mc5i 5i printer will not echo on screen rowaddrglitch xvpa YD only positive motion for vpa/mvpa caps semiautorightmargin sam YE printing in last column causes cr statuslineescok eslok es escape can be used on the status line tildeglitch hz hz cannot print ~'s (hazeltine) transparentunderline ul ul underline character overstrikes xonxoff xon xo terminal uses xon/xoff handshaking These are the numeric capabilities:

VVaarriiaabbllee CCaapp- TTCCaapp DDeessccrriippttiioonn

NNuummeerriicc nnaammee CCooddee columns cols co number of columns in a line inittabs it it tabs initially every

# spaces

labelheight lh lh rows in each label labelwidth lw lw columns in each label lines lines li number of lines on screen or page linesofmemory lm lm lines of memory if > line. 0 means varies magiccookieglitch xmc sg number of blank characters left by smso or rmso maxattributes ma ma maximum combined attributes terminal can handle maxcolors colors Co maximum number of colors on screen maxpairs pairs pa maximum number of

color-pairs on the

screen maximumwindows wnum MW maximum number of defineable windows nocolorvideo ncv NC video attributes that cannot be used with colors numlabels nlab Nl number of labels on screen paddingbaudrate pb pb lowest baud rate where padding needed virtualterminal vt vt virtual terminal number (CB/unix) widthstatusline wsl ws number of columns in status line The following numeric capabilities are present in the SVr4.0 term structure, but are not yet documented in the man page. They came in with SVr4's printer support.

VVaarriiaabbllee CCaapp- TTCCaapp DDeessccrriippttiioonn

NNuummeerriicc nnaammee CCooddee bitimageentwining bitwin Yo number of passes for

each bit-image row

bitimagetype bitype Yp type of bit-image

device buffercapacity bufsz Ya numbers of bytes buffered before printing buttons btns BT number of buttons on mouse

dothorzspacing spinh Yc spacing of dots hor-

izontally in dots per inch

dotvertspacing spinv Yb spacing of pins ver-

tically in pins per inch maxmicroaddress maddr Yd maximum value in micro...address maxmicrojump mjump Ye maximum value in parm...micro microcolsize mcs Yf character step size when in micro mode microlinesize mls Yg line step size when in micro mode numberofpins npins Yh numbers of pins in

print-head

outputreschar orc Yi horizontal resolu-

tion in units per line

outputreshorzinch orhi Yk horizontal resolu-

tion in units per inch outputresline orl Yj vertical resolution in units per line outputresvertinch orvi Yl vertical resolution in units per inch

printrate cps Ym print rate in char-

acters per second widecharsize widcs Yn character step size when in double wide mode These are the string capabilities:

VVaarriiaabbllee CCaapp- TTCCaapp DDeessccrriippttiioonn

SSttrriinngg nnaammee CCooddee acschars acsc ac graphics charset pairs, based on vt100 backtab cbt bt back tab (P) bell bel bl audible signal (bell) (P) carriagereturn cr cr carriage return (P*) (P*) changecharpitch cpi ZA Change number of characters per inch

to #1

changelinepitch lpi ZB Change number of

lines per inch to #1

changereshorz chr ZC Change horizontal

resolution to #1

changeresvert cvr ZD Change vertical res-

olution to #1

changescrollregion csr cs change region to

line #1 to line #2

(P) charpadding rmp rP like ip but when in insert mode clearalltabs tbc ct clear all tab stops (P) clearmargins mgc MC clear right and left soft margins clearscreen clear cl clear screen and home cursor (P*) clrbol el1 cb Clear to beginning of line clreol el ce clear to end of line (P) clreos ed cd clear to end of screen (P*) columnaddress hpa ch horizontal position

#1, absolute (P)

commandcharacter cmdch CC terminal settable cmd character in prototype !?

createwindow cwin CW define a window #1

from #2,#3 to #4,#5

cursoraddress cup cm move to row #1 col-

umns #2

cursordown cud1 do down one line cursorhome home ho home cursor (if no cup)

cursorinvisible civis vi make cursor invisi-

ble cursorleft cub1 le move left one space

cursormemaddress mrcup CM memory relative cur-

sor addressing, move

to row #1 columns #2

cursornormal cnorm ve make cursor appear normal (undo civis/cvvis)

cursorright cuf1 nd non-destructive

space (move right one space) cursortoll ll ll last line, first column (if no cup) cursorup cuu1 up up one line cursorvisible cvvis vs make cursor very visible definechar defc ZE Define a character

#1, #2 dots wide,

descender #3

deletecharacter dch1 dc delete character (P*) deleteline dl1 dl delete line (P*)

dialphone dial DI dial number #1

disstatusline dsl ds disable status line displayclock dclk DK display clock downhalfline hd hd half a line down enaacs enacs eA enable alternate char set enteraltcharsetmode smacs as start alternate character set (P) enterammode smam SA turn on automatic margins enterblinkmode blink mb turn on blinking enterboldmode bold md turn on bold (extra bright) mode

entercamode smcup ti string to start pro-

grams using cup enterdeletemode smdc dm enter delete mode

enterdimmode dim mh turn on half-bright

mode

enterdoublewidemode swidm ZF Enter double-wide

mode

enterdraftquality sdrfq ZG Enter draft-quality

mode enterinsertmode smir im enter insert mode enteritalicsmode sitm ZH Enter italic mode

enterleftwardmode slm ZI Start leftward car-

riage motion

entermicromode smicm ZJ Start micro-motion

mode enternearletterquality snlq ZK Enter NLQ mode

enternormalquality snrmq ZL Enter normal-quality

mode enterprotectedmode prot mp turn on protected mode enterreversemode rev mr turn on reverse video mode entersecuremode invis mk turn on blank mode

(characters invisi-

ble)

entershadowmode sshm ZM Enter shadow-print

mode enterstandoutmode smso so begin standout mode entersubscriptmode ssubm ZN Enter subscript mode entersuperscriptmode ssupm ZO Enter superscript mode enterunderlinemode smul us begin underline mode

enterupwardmode sum ZP Start upward car-

riage motion enterxonmode smxon SX turn on xon/xoff handshaking

erasechars ech ec erase #1 characters

(P)

exitaltcharsetmode rmacs ae end alternate char-

acter set (P) exitammode rmam RA turn off automatic margins exitattributemode sgr0 me turn off all attributes

exitcamode rmcup te strings to end pro-

grams using cup exitdeletemode rmdc ed end delete mode

exitdoublewidemode rwidm ZQ End double-wide mode

exitinsertmode rmir ei exit insert mode exititalicsmode ritm ZR End italic mode

exitleftwardmode rlm ZS End left-motion mode

exitmicromode rmicm ZT End micro-motion

mode

exitshadowmode rshm ZU End shadow-print

mode exitstandoutmode rmso se exit standout mode exitsubscriptmode rsubm ZV End subscript mode exitsuperscriptmode rsupm ZW End superscript mode exitunderlinemode rmul ue exit underline mode

exitupwardmode rum ZX End reverse charac-

ter motion exitxonmode rmxon RX turn off xon/xoff handshaking

fixedpause pause PA pause for 2-3 sec-

onds flashhook hook fh flash switch hook flashscreen flash vb visible bell (may not move cursor) formfeed ff ff hardcopy terminal page eject (P*) fromstatusline fsl fs return from status line

gotowindow wingo WG go to window #1

hangup hup HU hang-up phone

init1string is1 i1 initialization string init2string is2 is initialization string init3string is3 i3 initialization string

initfile if if name of initializa-

tion file initprog iprog iP path name of program for initialization

initializecolor initc Ic initialize color #1

to (#2,#3,#4)

initializepair initp Ip Initialize color

pair #1 to

fg=(#2,#3,#4),

bg=(#5,#6,#7)

insertcharacter ich1 ic insert character (P) insertline il1 al insert line (P*) insertpadding ip ip insert padding after inserted character keya1 ka1 K1 upper left of keypad

keya3 ka3 K3 upper right of key-

pad keyb2 kb2 K2 center of keypad keybackspace kbs kb backspace key keybeg kbeg @1 begin key

keybtab kcbt kB back-tab key

keyc1 kc1 K4 lower left of keypad

keyc3 kc3 K5 lower right of key-

pad keycancel kcan @2 cancel key

keycatab ktbc ka clear-all-tabs key

keyclear kclr kC clear-screen or

erase key keyclose kclo @3 close key keycommand kcmd @4 command key keycopy kcpy @5 copy key keycreate kcrt @6 create key

keyctab kctab kt clear-tab key

keydc kdch1 kD delete-character key

keydl kdl1 kL delete-line key

keydown kcud1 kd down-arrow key

keyeic krmir kM sent by rmir or smir in insert mode keyend kend @7 end key keyenter kent @8 enter/send key

keyeol kel kE clear-to-end-of-line

key

keyeos ked kS clear-to-end-of-

screen key keyexit kext @9 exit key keyf0 kf0 k0 F0 function key keyf1 kf1 k1 F1 function key keyf10 kf10 k; F10 function key keyf11 kf11 F1 F11 function key keyf12 kf12 F2 F12 function key keyf13 kf13 F3 F13 function key keyf14 kf14 F4 F14 function key keyf15 kf15 F5 F15 function key keyf16 kf16 F6 F16 function key keyf17 kf17 F7 F17 function key keyf18 kf18 F8 F18 function key keyf19 kf19 F9 F19 function key keyf2 kf2 k2 F2 function key keyf20 kf20 FA F20 function key keyf21 kf21 FB F21 function key keyf22 kf22 FC F22 function key keyf23 kf23 FD F23 function key keyf24 kf24 FE F24 function key keyf25 kf25 FF F25 function key keyf26 kf26 FG F26 function key keyf27 kf27 FH F27 function key keyf28 kf28 FI F28 function key keyf29 kf29 FJ F29 function key keyf3 kf3 k3 F3 function key keyf30 kf30 FK F30 function key keyf31 kf31 FL F31 function key keyf32 kf32 FM F32 function key keyf33 kf33 FN F33 function key keyf34 kf34 FO F34 function key keyf35 kf35 FP F35 function key keyf36 kf36 FQ F36 function key keyf37 kf37 FR F37 function key keyf38 kf38 FS F38 function key keyf39 kf39 FT F39 function key keyf4 kf4 k4 F4 function key keyf40 kf40 FU F40 function key keyf41 kf41 FV F41 function key keyf42 kf42 FW F42 function key keyf43 kf43 FX F43 function key keyf44 kf44 FY F44 function key keyf45 kf45 FZ F45 function key keyf46 kf46 Fa F46 function key keyf47 kf47 Fb F47 function key keyf48 kf48 Fc F48 function key keyf49 kf49 Fd F49 function key keyf5 kf5 k5 F5 function key keyf50 kf50 Fe F50 function key keyf51 kf51 Ff F51 function key keyf52 kf52 Fg F52 function key keyf53 kf53 Fh F53 function key keyf54 kf54 Fi F54 function key keyf55 kf55 Fj F55 function key keyf56 kf56 Fk F56 function key keyf57 kf57 Fl F57 function key keyf58 kf58 Fm F58 function key keyf59 kf59 Fn F59 function key keyf6 kf6 k6 F6 function key keyf60 kf60 Fo F60 function key keyf61 kf61 Fp F61 function key keyf62 kf62 Fq F62 function key keyf63 kf63 Fr F63 function key keyf7 kf7 k7 F7 function key keyf8 kf8 k8 F8 function key keyf9 kf9 k9 F9 function key keyfind kfnd @0 find key

keyhelp khlp %1 help key

keyhome khome kh home key

keyic kich1 kI insert-character key

keyil kil1 kA insert-line key

keyleft kcub1 kl left-arrow key

keyll kll kH lower-left key (home

down)

keymark kmrk %2 mark key

keymessage kmsg %3 message key

keymove kmov %4 move key

keynext knxt %5 next key

keynpage knp kN next-page key

keyopen kopn %6 open key

keyoptions kopt %7 options key

keyppage kpp kP previous-page key

keyprevious kprv %8 previous key

keyprint kprt %9 print key

keyredo krdo %0 redo key

keyreference kref &1 reference key keyrefresh krfr &2 refresh key keyreplace krpl &3 replace key keyrestart krst &4 restart key keyresume kres &5 resume key

keyright kcuf1 kr right-arrow key

keysave ksav &6 save key keysbeg kBEG &9 shifted begin key keyscancel kCAN &0 shifted cancel key keyscommand kCMD *1 shifted command key keyscopy kCPY *2 shifted copy key keyscreate kCRT *3 shifted create key

keysdc kDC *4 shifted delete-char-

acter key

keysdl kDL *5 shifted delete-line

key keyselect kslt *6 select key keysend kEND *7 shifted end key

keyseol kEOL *8 shifted clear-to-

end-of-line key

keysexit kEXT *9 shifted exit key

keysf kind kF scroll-forward key

keysfind kFND *0 shifted find key

keyshelp kHLP #1 shifted help key

keyshome kHOM #2 shifted home key

keysic kIC #3 shifted insert-char-

acter key

keysleft kLFT #4 shifted left-arrow

key

keysmessage kMSG %a shifted message key

keysmove kMOV %b shifted move key

keysnext kNXT %c shifted next key

keysoptions kOPT %d shifted options key

keysprevious kPRV %e shifted previous key

keysprint kPRT %f shifted print key

keysr kri kR scroll-backward key

keysredo kRDO %g shifted redo key

keysreplace kRPL %h shifted replace key

keysright kRIT %i shifted right-arrow

key

keysrsume kRES %j shifted resume key

keyssave kSAV !1 shifted save key keyssuspend kSPD !2 shifted suspend key

keystab khts kT set-tab key

keysundo kUND !3 shifted undo key keysuspend kspd &7 suspend key keyundo kund &8 undo key

keyup kcuu1 ku up-arrow key

keypadlocal rmkx ke leave 'key-

boardtransmit' mode

keypadxmit smkx ks enter 'key-

boardtransmit' mode labf0 lf0 l0 label on function key f0 if not f0 labf1 lf1 l1 label on function key f1 if not f1 labf10 lf10 la label on function key f10 if not f10 labf2 lf2 l2 label on function key f2 if not f2 labf3 lf3 l3 label on function key f3 if not f3 labf4 lf4 l4 label on function key f4 if not f4 labf5 lf5 l5 label on function key f5 if not f5 labf6 lf6 l6 label on function key f6 if not f6 labf7 lf7 l7 label on function key f7 if not f7 labf8 lf8 l8 label on function key f8 if not f8 labf9 lf9 l9 label on function key f9 if not f9 labelformat fln Lf label format labeloff rmln LF turn off soft labels labelon smln LO turn on soft labels metaoff rmm mo turn off meta mode metaon smm mm turn on meta mode

(8th-bit on)

microcolumnaddress mhpa ZY Like columnaddress in micro mode microdown mcud1 ZZ Like cursordown in micro mode microleft mcub1 Za Like cursorleft in micro mode microright mcuf1 Zb Like cursorright in micro mode

microrowaddress mvpa Zc Like rowaddress #1

in micro mode microup mcuu1 Zd Like cursorup in micro mode newline nel nw newline (behave like cr followed by lf) orderofpins porder Ze Match software bits

to print-head pins

origcolors oc oc Set all color pairs to the original ones origpair op op Set default pair to its original value padchar pad pc padding char (instead of null)

parmdch dch DC delete #1 characters

(P*)

parmdeleteline dl DL delete #1 lines (P*)

parmdowncursor cud DO down #1 lines (P*)

parmdownmicro mcud Zf Like parmdowncur-

sor in micro mode

parmich ich IC insert #1 characters

(P*)

parmindex indn SF scroll forward #1

lines (P)

parminsertline il AL insert #1 lines (P*)

parmleftcursor cub LE move #1 characters

to the left (P)

parmleftmicro mcub Zg Like parmleftcur-

sor in micro mode

parmrightcursor cuf RI move #1 characters

to the right (P*)

parmrightmicro mcuf Zh Like parmrightcur-

sor in micro mode

parmrindex rin SR scroll back #1 lines

(P)

parmupcursor cuu UP up #1 lines (P*)

parmupmicro mcuu Zi Like parmupcursor in micro mode pkeykey pfkey pk program function key

#1 to type string #2

pkeylocal pfloc pl program function key

#1 to execute string

pkeyxmit pfx px program function key

#1 to transmit

string #2

plabnorm pln pn program label #1 to

show string #2

printscreen mc0 ps print contents of screen prtrnon mc5p pO turn on printer for

#1 bytes

prtroff mc4 pf turn off printer prtron mc5 po turn on printer pulse pulse PU select pulse dialing

quickdial qdial QD dial number #1 with-

out checking removeclock rmclk RC remove clock

repeatchar rep rp repeat char #1 #2

times (P*) reqforinput rfi RF send next input char (for ptys) reset1string rs1 r1 reset string reset2string rs2 r2 reset string reset3string rs3 r3 reset string resetfile rf rf name of reset file restorecursor rc rc restore cursor to position of last savecursor

rowaddress vpa cv vertical position #1

absolute (P) savecursor sc sc save current cursor position (P) scrollforward ind sf scroll text up (P) scrollreverse ri sr scroll text down (P) selectcharset scs Zj Select character

set, #1

setattributes sgr sa define video

attributes #1-#9

(PG9) setbackground setb Sb Set background color

setbottommargin smgb Zk Set bottom margin at current line setbottommarginparm smgbp Zl Set bottom margin at

line #1 or (if smgtp

is not given) #2

lines from bottom

setclock sclk SC set clock, #1 hrs #2

mins #3 secs

setcolorpair scp sp Set current color

pair to #1

setforeground setf Sf Set foreground color

setleftmargin smgl ML set left soft margin

at current col-

umn. See smgl. (ML is not in BSD termcap). setleftmarginparm smglp Zm Set left (right)

margin at column #1

setrightmargin smgr MR set right soft mar-

gin at current col-

umn setrightmarginparm smgrp Zn Set right margin at

column #1

settab hts st set a tab in every row, current columns settopmargin smgt Zo Set top margin at current line settopmarginparm smgtp Zp Set top (bottom)

margin at row #1

setwindow wind wi current window is

lines #1-#2 cols

#3-#4

startbitimage sbim Zq Start printing bit image graphics startcharsetdef scsd Zr Start character set

definition #1, with

#2 characters in the

set stopbitimage rbim Zs Stop printing bit image graphics stopcharsetdef rcsd Zt End definition of

character set #1

subscriptcharacters subcs Zu List of subscript-

able characters

superscriptcharacters supcs Zv List of superscript-

able characters

tab ht ta tab to next 8-space

hardware tab stop thesecausecr docr Zw Printing any of these characters causes CR tostatusline tsl ts move to status line,

column #1

tone tone TO select touch tone dialing underlinechar uc uc underline char and move past it uphalfline hu hu half a line up

user0 u0 u0 User string #0

user1 u1 u1 User string #1

user2 u2 u2 User string #2

user3 u3 u3 User string #3

user4 u4 u4 User string #4

user5 u5 u5 User string #5

user6 u6 u6 User string #6

user7 u7 u7 User string #7

user8 u8 u8 User string #8

user9 u9 u9 User string #9

waittone wait WA wait for dial-tone

xoffcharacter xoffc XF XOFF character xoncharacter xonc XN XON character

zeromotion zerom Zx No motion for subse-

quent character

The following string capabilities are present in the SVr4.0 term struc-

ture, but were originally not documented in the man page.

VVaarriiaabbllee CCaapp- TTCCaapp DDeessccrriippttiioonn

SSttrriinngg nnaammee CCooddee altscancodeesc scesa S8 Alternate escape

for scancode emu-

lation bitimagecarriagereturn bicr Yv Move to beginning of same row bitimagenewline binel Zz Move to next row of the bit image bitimagerepeat birep Xy Repeat bit image

cell #1 #2 times

charsetnames csnm Zy Produce #1'th item

from list of char-

acter set names codesetinit csin ci Init sequence for multiple codesets colornames colornm Yw Give name for

color #1

definebitimageregion defbi Yx Define rectan-

gualar bit image region

devicetype devt dv Indicate lan-

guage/codeset sup-

port

displaypcchar dispc S1 Display PC charac-

ter #1

endbitimageregion endbi Yy End a bit-image

region enterpccharsetmode smpch S2 Enter PC character display mode enterscancodemode smsc S4 Enter PC scancode mode exitpccharsetmode rmpch S3 Exit PC character display mode exitscancodemode rmsc S5 Exit PC scancode mode getmouse getm Gm Curses should get button events,

parameter #1 not

documented. keymouse kmous Km Mouse event has occurred mouseinfo minfo Mi Mouse status information pctermoptions pctrm S6 PC terminal options pkeyplab pfxl xl Program function

key #1 to type

string #2 and show

string #3

reqmousepos reqmp RQ Request mouse position

scancodeescape scesc S7 Escape for scan-

code emulation set0desseq s0ds s0 Shift to codeset 0 (EUC set 0, ASCII) set1desseq s1ds s1 Shift to codeset 1 set2desseq s2ds s2 Shift to codeset 2 set3desseq s3ds s3 Shift to codeset 3 setabackground setab AB Set background

color to #1, using

ANSI escape setaforeground setaf AF Set foreground

color to #1, using

ANSI escape setcolorband setcolor Yz Change to ribbon

color #1

setlrmargin smglr ML Set both left and right margins to

#1, #2. (ML is

not in BSD term-

cap). setpagelength slines YZ Set page length to

#1 lines

settbmargin smgtb MT Sets both top and bottom margins to

#1, #2

The XSI Curses standard added these. They are some post-4.1 versions

of System V curses, e.g., Solaris 2.5 and IRIX 6.x. The nnccuurrsseess term-

cap names for them are invented; according to the XSI Curses standard,

they have no termcap names. If your compiled terminfo entries use

these, they may not be binary-compatible with System V terminfo

entries after SVr4.1; beware!

VVaarriiaabbllee CCaapp- TTCCaapp DDeessccrriippttiioonn

SSttrriinngg nnaammee CCooddee enterhorizontalhlmode ehhlm Xh Enter horizontal highlight mode enterlefthlmode elhlm Xl Enter left highlight mode enterlowhlmode elohlm Xo Enter low highlight mode

enterrighthlmode erhlm Xr Enter right high-

light mode entertophlmode ethlm Xt Enter top highlight mode

enterverticalhlmode evhlm Xv Enter vertical high-

light mode setaattributes sgr1 sA Define second set of video attributes

#1-#6

setpgleninch slength sL YI Set page length

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The following entry, describing an ANSI-standard terminal, is represen-

tative of what a tteerrmmiinnffoo entry for a modern terminal typically looks like.

ansi|ansi/pc-term compatible with color,

mc5i,

colors#8, ncv#3, pairs#64,

cub=\E[%p1%dD, cud=\E[%p1%dB, cuf=\E[%p1%dC,

cuu=\E[%p1%dA, dch=\E[%p1%dP, dl=\E[%p1%dM,

ech=\E[%p1%dX, el1=\E[1K, hpa=\E[%p1%dG, ht=\E[I,

ich=\E[%p1%d@, il=\E[%p1%dL, indn=\E[%p1%dS, .indn=\E[%p1%dT,

kbs=^H, kcbt=\E[Z, kcub1=\E[D, kcud1=\E[B, kcuf1=\E[C, kcuu1=\E[A, kf1=\E[M, kf10=\E[V, kf11=\E[W, kf12=\E[X, kf2=\E[N, kf3=\E[O, kf4=\E[P, kf5=\E[Q, kf6=\E[R, kf7=\E[S, kf8=\E[T, kf9=\E[U, kich1=\E[L, mc4=\E[4i, mc5=\E[5i, nel=\r\E[S,

op=\E[37;40m, rep=%p1%c\E[%p2%{1}%-%db,

rin=\E[%p1%dT, s0ds=\E(B, s1ds=\E)B, s2ds=\E*B,

s3ds=\E+B, setab=\E[4%p1%dm, setaf=\E[3%p1%dm,

setb=\E[4%?%p1%{1}%=%t4%e%p1%{3}%=%t6%e%p1%{4}%=%t1%e%p1%{6}%=%t3%e%p1%d%;m,

setf=\E[3%?%p1%{1}%=%t4%e%p1%{3}%=%t6%e%p1%{4}%=%t1%e%p1%{6}%=%t3%e%p1%d%;m,

sgr=\E[0;10%?%p1%t;7%;%?%p2%t;4%;%?%p3%t;7%;%?%p4%t;5%;%?%p6%t;1%;%?%p7%t;8%;%?%p8%t;11%;%?%p9%t;12%;m,

sgr0=\E[0;10m, tbc=\E[2g, u6=\E[%d;%dR, u7=\E[6n,

u8=\E[?%[;0123456789]c, u9=\E[c, vpa=\E[%p1%dd,

Entries may continue onto multiple lines by placing white space at the beginning of each line except the first. Comments may be included on

lines beginning with ``#''. Capabilities in terminfo are of three

types: Boolean capabilities which indicate that the terminal has some

particular feature, numeric capabilities giving the size of the termi-

nal or the size of particular delays, and string capabilities, which

give a sequence which can be used to perform particular terminal opera-

tions. TTyyppeess ooff CCaappaabbiilliittiieess

All capabilities have names. For instance, the fact that ANSI-standard

terminals have automatic margins (i.e., an automatic return and line-

feed when the end of a line is reached) is indicated by the capability aamm. Hence the description of ansi includes aamm. Numeric capabilities

are followed by the character `#' and then a positive value. Thus

ccoollss, which indicates the number of columns the terminal has, gives the value `80' for ansi. Values for numeric capabilities may be specified

in decimal, octal or hexadecimal, using the C programming language con-

ventions (e.g., 255, 0377 and 0xff or 0xFF). Finally, string valued capabilities, such as eell (clear to end of line

sequence) are given by the two-character code, an `=', and then a

string ending at the next following `,'.

A number of escape sequences are provided in the string valued capabil-

ities for easy encoding of characters there. Both \\EE and \\ee map to an

ESCAPE character, ^^xx maps to a control-x for any appropriate x, and the

sequences \\nn \\ll \\rr \\tt \\bb \\ff \\ss give a newline, line-feed, return, tab,

backspace, form-feed, and space. Other escapes include \\^^ for ^^, \\\\

for \\, \\, for comma, \\:: for ::, and \\00 for null. (\\00 will produce \200, which does not terminate a string but behaves as a null character on most terminals, providing CS7 is specified. See stty(1).) Finally, characters may be given as three octal digits after a \\. A delay in milliseconds may appear anywhere in a string capability,

enclosed in $<..> brackets, as in eell=\EK$<5>, and padding characters

are supplied by tputs to provide this delay. The delay must be a num-

ber with at most one decimal place of precision; it may be followed by suffixes `*' or '/' or both. A `*' indicates that the padding required is proportional to the number of lines affected by the operation, and

the amount given is the per-affected-unit padding required. (In the

case of insert character, the factor is still the number of lines affected.) Normally, padding is advisory if the device has the xxoonn capability; it is used for cost computation but does not trigger delays. A `/' suffix indicates that the padding is mandatory and forces a delay of the given number of milliseconds even on devices for which xxoonn is present to indicate flow control. Sometimes individual capabilities must be commented out. To do this, put a period before the capability name. For example, see the second iinndd in the example above. FFeettcchhiinngg CCoommppiilleedd DDeessccrriippttiioonnss If the environment variable TERMINFO is set, it is interpreted as the pathname of a directory containing the compiled description you are working on. Only that directory is searched.

If TERMINFO is not set, the nnccuurrsseess version of the terminfo reader code

will instead look in the directory $$HHOOMMEE//..tteerrmmiinnffoo for a compiled

description. If it fails to find one there, and the environment vari-

able TERMINFODIRS is set, it will interpret the contents of that vari-

able as a list of colon- separated directories to be searched (an empty

entry is interpreted as a command to search /usr/share/terminfo). If

no description is found in any of the TERMINFODIRS directories, the fetch fails. If neither TERMINFO nor TERMINFODIRS is set, the last place tried will

be the system terminfo directory, /usr/share/terminfo.

(Neither the $$HHOOMMEE//..tteerrmmiinnffoo lookups nor TERMINFODIRS extensions are

supported under stock System V terminfo/curses.)

PPrreeppaarriinngg DDeessccrriippttiioonnss We now outline how to prepare descriptions of terminals. The most effective way to prepare a terminal description is by imitating the

description of a similar terminal in terminfo and to build up a

description gradually, using partial descriptions with vi or some other

screen-oriented program to check that they are correct. Be aware that

a very unusual terminal may expose deficiencies in the ability of the

terminfo file to describe it or bugs in the screen-handling code of the

test program. To get the padding for insert line right (if the terminal manufacturer did not document it) a severe test is to edit a large file at 9600 baud, delete 16 or so lines from the middle of the screen, then hit the `u' key several times quickly. If the terminal messes up, more padding is usually needed. A similar test can be used for insert character. BBaassiicc CCaappaabbiilliittiieess The number of columns on each line for the terminal is given by the ccoollss numeric capability. If the terminal is a CRT, then the number of lines on the screen is given by the lliinneess capability. If the terminal wraps around to the beginning of the next line when it reaches the right margin, then it should have the aamm capability. If the terminal can clear its screen, leaving the cursor in the home position, then

this is given by the cclleeaarr string capability. If the terminal over-

strikes (rather than clearing a position when a character is struck over) then it should have the ooss capability. If the terminal is a printing terminal, with no soft copy unit, give it both hhcc and ooss. (ooss applies to storage scope terminals, such as TEKTRONIX 4010 series, as well as hard copy and APL terminals.) If there is a code to move the cursor to the left edge of the current row, give this as ccrr. (Normally

this will be carriage return, control M.) If there is a code to pro-

duce an audible signal (bell, beep, etc) give this as bbeell. If there is a code to move the cursor one position to the left (such as backspace) that capability should be given as ccuubb11. Similarly, codes to move to the right, up, and down should be given as ccuuff11, ccuuuu11, and ccuudd11. These local cursor motions should not alter the text they pass over, for example, you would not normally use `ccuuff11= ' because the space would erase the character moved over. A very important point here is that the local cursor motions encoded in

terminfo are undefined at the left and top edges of a CRT terminal.

Programs should never attempt to backspace around the left edge, unless bbww is given, and never attempt to go up locally off the top. In order to scroll text up, a program will go to the bottom left corner of the screen and send the iinndd (index) string. To scroll text down, a program goes to the top left corner of the screen and sends the rrii (reverse index) string. The strings iinndd and rrii are undefined when not on their respective corners of the screen. Parameterized versions of the scrolling sequences are iinnddnn and rriinn which have the same semantics as iinndd and rrii except that they take one parameter, and scroll that many lines. They are also undefined except at the appropriate edge of the screen. The aamm capability tells whether the cursor sticks at the right edge of the screen when text is output, but this does not necessarily apply to a ccuuff11 from the last column. The only local motion which is defined from the left edge is if bbww is given, then a ccuubb11 from the left edge will move to the right edge of the previous row. If bbww is not given, the effect is undefined. This is useful for drawing a box around the edge of the screen, for example. If the terminal has switch selectable

automatic margins, the terminfo file usually assumes that this is on;

i.e., aamm. If the terminal has a command which moves to the first col-

umn of the next line, that command can be given as nneell (newline). It does not matter if the command clears the remainder of the current line, so if the terminal has no ccrr and llff it may still be possible to craft a working nneell out of one or both of them.

These capabilities suffice to describe hard-copy and "glass-tty" termi-

nals. Thus the model 33 teletype is described as 33|tty33|tty|model 33 teletype,

bel=^G, cols#72, cr=^M, cud1=^J, hc, ind=^J, os,

while the Lear Siegler ADM-3 is described as

adm3|3|lsi adm3,

am, bel=^G, clear=^Z, cols#80, cr=^M, cub1=^H, cud1=^J,

ind=^J, lines#24,

PPaarraammeetteerriizzeedd SSttrriinnggss

Cursor addressing and other strings requiring parameters in the termi-

nal are described by a parameterized string capability, with printf(3S)

like escapes %%xx in it. For example, to address the cursor, the ccuupp

capability is given, using two parameters: the row and column to address to. (Rows and columns are numbered from zero and refer to the physical screen visible to the user, not to any unseen memory.) If the terminal has memory relative cursor addressing, that can be indicated by mmrrccuupp.

The parameter mechanism uses a stack and special %% codes to manipulate

it. Typically a sequence will push one of the parameters onto the

stack and then print it in some format. Print (e.g., "%d") is a spe-

cial case. Other operations, including "%t" pop their operand from the

stack. It is noted that more complex operations are often necessary, e.g., in the ssggrr string.

The %% encodings have the following meanings:

%% outputs `%'

%[[:]flags][width[.precision]][doxXs]

as in pprriinnttff, flags are [-+#] and space

%c print pop() like %c in pprriinnttff

%s print pop() like %s in pprriinnttff

%p[1-9]

push i'th parameter

%P[a-z]

set dynamic variable [a-z] to pop()

%g[a-z]

get dynamic variable [a-z] and push it

%P[A-Z]

set static variable [a-z] to pop()

%g[A-Z]

get static variable [a-z] and push it

The terms "static" and "dynamic" are misleading. Historically, these are simply two different sets of variables, whose values are

not reset between calls to ttppaarrmm. However, that fact is not docu-

mented in other implementations. Relying on it will adversely impact portability to other implementations.

%'c' char constant c

%{nn}

integer constant nn

%l push strlen(pop)

%+ %- %* %/ %m

arithmetic (%m is mod): push(pop() op pop())

%& %| %^

bit operations: push(pop() op pop())

%= %> %<

logical operations: push(pop() op pop())

%A, %O

logical and & or operations (for conditionals)

%! %~

unary operations push(op pop())

%i add 1 to first two parameters (for ANSI terminals)

%? expr %t thenpart %e elsepart %;

if-then-else, %e elsepart is optional. else-if's are possible a

la Algol 68:

%? c1 %t b1 %e c2 %t b2 %e c3 %t b3 %e c4 %t b4 %e %;

ci are conditions, bi are bodies. Binary operations are in postfix form with the operands in the usual

order. That is, to get x-5 one would use "%gx%{5}%-". %P and %g vari-

ables are persistent across escape-string evaluations.

Consider the HP2645, which, to get to row 3 and column 12, needs to be sent \E&a12c03Y padded for 6 milliseconds. Note that the order of the rows and columns is inverted here, and that the row and column are printed as two digits. Thus its ccuupp capability is

"cup=6\E&%p2%2dc%p1%2dY".

The Microterm ACT-IV needs the current row and column sent preceded by

a ^^TT, with the row and column simply encoded in binary,

"cup=^T%p1%c%p2%c". Terminals which use "%c" need to be able to

backspace the cursor (ccuubb11), and to move the cursor up one line on the screen (ccuuuu11). This is necessary because it is not always safe to transmit \\nn ^^DD and \\rr, as the system may change or discard them. (The

library routines dealing with terminfo set tty modes so that tabs are

never expanded, so \t is safe to send. This turns out to be essential for the Ann Arbor 4080.)

A final example is the LSI ADM-3a, which uses row and column offset by

a blank character, thus "cup=\E=%p1%' '%+%c%p2%' '%+%c". After sending

`\E=', this pushes the first parameter, pushes the ASCII value for a space (32), adds them (pushing the sum on the stack in place of the two previous values) and outputs that value as a character. Then the same is done for the second parameter. More complex arithmetic is possible using the stack. CCuurrssoorr MMoottiioonnss If the terminal has a fast way to home the cursor (to very upper left corner of screen) then this can be given as hhoommee; similarly a fast way

of getting to the lower left-hand corner can be given as llll; this may

involve going up with ccuuuu11 from the home position, but a program should never do this itself (unless llll does) because it can make no assumption about the effect of moving up from the home position. Note that the

home position is the same as addressing to (0,0): to the top left cor-

ner of the screen, not of memory. (Thus, the \EH sequence on HP termi-

nals cannot be used for hhoommee.) If the terminal has row or column absolute cursor addressing, these can be given as single parameter capabilities hhppaa (horizontal position absolute) and vvppaa (vertical position absolute). Sometimes these are shorter than the more general two parameter sequence (as with the

hp2645) and can be used in preference to ccuupp. If there are parameter-

ized local motions (e.g., move n spaces to the right) these can be given as ccuudd, ccuubb, ccuuff, and ccuuuu with a single parameter indicating how many spaces to move. These are primarily useful if the terminal does not have ccuupp, such as the TEKTRONIX 4025. If the terminal needs to be in a special mode when running a program that uses these capabilities, the codes to enter and exit this mode can be given as ssmmccuupp and rrmmccuupp. This arises, for example, from terminals like the Concept with more than one page of memory. If the terminal

has only memory relative cursor addressing and not screen relative cur-

sor addressing, a one screen-sized window must be fixed into the termi-

nal for cursor addressing to work properly. This is also used for the TEKTRONIX 4025, where ssmmccuupp sets the command character to be the one

used by terminfo. If the ssmmccuupp sequence will not restore the screen

after an rrmmccuupp sequence is output (to the state prior to outputting rrmmccuupp), specify nnrrrrmmcc. AArreeaa CClleeaarrss If the terminal can clear from the current position to the end of the line, leaving the cursor where it is, this should be given as eell. If the terminal can clear from the beginning of the line to the current position inclusive, leaving the cursor where it is, this should be given as eell11. If the terminal can clear from the current position to the end of the display, then this should be given as eedd. EEdd is only defined from the first column of a line. (Thus, it can be simulated by

a request to delete a large number of lines, if a true eedd is not avail-

able.) IInnsseerrtt//ddeelleettee lliinnee aanndd vveerrttiiccaall mmoottiioonnss If the terminal can open a new blank line before the line where the cursor is, this should be given as iill11; this is done only from the first position of a line. The cursor must then appear on the newly blank line. If the terminal can delete the line which the cursor is on, then this should be given as ddll11; this is done only from the first position on the line to be deleted. Versions of iill11 and ddll11 which take a single parameter and insert or delete that many lines can be given as iill and ddll. If the terminal has a settable scrolling region (like the vt100) the command to set this can be described with the ccssrr capability, which takes two parameters: the top and bottom lines of the scrolling region. The cursor position is, alas, undefined after using this command. It is possible to get the effect of insert or delete line using ccssrr on

a properly chosen region; the sscc and rrcc (save and restore cursor) com-

mands may be useful for ensuring that your synthesized insert/delete string does not move the cursor. (Note that the nnccuurrsseess(3X) library does this synthesis automatically, so you need not compose insert/delete strings for an entry with ccssrr).

Yet another way to construct insert and delete might be to use a combi-

nation of index with the memory-lock feature found on some terminals

(like the HP-700/90 series, which however also has insert/delete).

Inserting lines at the top or bottom of the screen can also be done using rrii or iinndd on many terminals without a true insert/delete line, and is often faster even on terminals with those features.

The boolean nnoonnddeessttssccrroollllrreeggiioonn should be set if each scrolling win-

dow is effectively a view port on a screen-sized canvas. To test for

this capability, create a scrolling region in the middle of the screen, write something to the bottom line, move the cursor to the top of the region, and do rrii followed by ddll11 or iinndd. If the data scrolled off the

bottom of the region by the rrii re-appears, then scrolling is non-

destructive. System V and XSI Curses expect that iinndd, rrii, iinnddnn, and rriinn will simulate destructive scrolling; their documentation cautions you not to define ccssrr unless this is true. This ccuurrsseess implementation is more liberal and will do explicit erases after scrolling if nnddssttrr is defined. If the terminal has the ability to define a window as part of memory, which all commands affect, it should be given as the parameterized string wwiinndd. The four parameters are the starting and ending lines in memory and the starting and ending columns in memory, in that order. If the terminal can retain display memory above, then the ddaa capability should be given; if display memory can be retained below, then ddbb should be given. These indicate that deleting a line or scrolling may

bring non-blank lines up from below or that scrolling back with rrii may

bring down non-blank lines.

IInnsseerrtt//DDeelleettee CChhaarraacctteerr There are two basic kinds of intelligent terminals with respect to

insert/delete character which can be described using terminfo. The

most common insert/delete character operations affect only the charac-

ters on the current line and shift characters off the end of the line rigidly. Other terminals, such as the Concept 100 and the Perkin Elmer Owl, make a distinction between typed and untyped blanks on the screen, shifting upon an insert or delete only to an untyped blank on the screen which is either eliminated, or expanded to two untyped blanks. You can determine the kind of terminal you have by clearing the screen and then typing text separated by cursor motions. Type "abc def" using local cursor motions (not spaces) between the "abc" and the "def". Then position the cursor before the "abc" and put the terminal in insert mode. If typing characters causes the rest of the line to shift rigidly and characters to fall off the end, then your terminal does not distinguish between blanks and untyped positions. If the "abc" shifts over to the "def" which then move together around the end

of the current line and onto the next as you insert, you have the sec-

ond type of terminal, and should give the capability iinn, which stands for "insert null". While these are two logically separate attributes

(one line versus multi-line insert mode, and special treatment of

untyped spaces) we have seen no terminals whose insert mode cannot be described with the single attribute. Terminfo can describe both terminals which have an insert mode, and terminals which send a simple sequence to open a blank position on the current line. Give as ssmmiirr the sequence to get into insert mode. Give as rrmmiirr the sequence to leave insert mode. Now give as iicchh11 any sequence needed to be sent just before sending the character to be inserted. Most terminals with a true insert mode will not give iicchh11; terminals which send a sequence to open a screen position should give it here. If your terminal has both, insert mode is usually preferable to iicchh11. Technically, you should not give both unless the terminal actually

requires both to be used in combination. Accordingly, some non-curses

applications get confused if both are present; the symptom is doubled characters in an update using insert. This requirement is now rare; most iicchh sequences do not require previous smir, and most smir insert modes do not require iicchh11 before each character. Therefore, the new ccuurrsseess actually assumes this is the case and uses either rrmmiirr/ssmmiirr or iicchh/iicchh11 as appropriate (but not both). If you have to write an entry to be used under new curses for a terminal old enough to need both, include the rrmmiirr/ssmmiirr sequences in iicchh11. If post insert padding is needed, give this as a number of milliseconds in iipp (a string option). Any other sequence which may need to be sent after an insert of a single character may also be given in iipp. If your terminal needs both to be placed into an `insert mode' and a special code to precede each inserted character, then both ssmmiirr/rrmmiirr and iicchh11 can be given, and both will be used. The iicchh capability, with one parameter, n, will repeat the effects of iicchh11 n times. If padding is necessary between characters typed while not in insert mode, give this as a number of milliseconds padding in rrmmpp. It is occasionally necessary to move around while in insert mode to delete characters on the same line (e.g., if there is a tab after the insertion position). If your terminal allows motion while in insert mode you can give the capability mmiirr to speed up inserting in this case. Omitting mmiirr will affect only speed. Some terminals (notably Datamedia's) must not have mmiirr because of the way their insert mode works. Finally, you can specify ddcchh11 to delete a single character, ddcchh with one parameter, n, to delete n characters, and delete mode by giving ssmmddcc and rrmmddcc to enter and exit delete mode (any mode the terminal needs to be placed in for ddcchh11 to work). A command to erase n characters (equivalent to outputting n blanks without moving the cursor) can be given as eecchh with one parameter. HHiigghhlliigghhttiinngg,, UUnnddeerrlliinniinngg,, aanndd VViissiibbllee BBeellllss If your terminal has one or more kinds of display attributes, these can be represented in a number of different ways. You should choose one display form as standout mode, representing a good, high contrast,

easy-on-the-eyes, format for highlighting error messages and other

attention getters. (If you have a choice, reverse video plus half-

bright is good, or reverse video alone.) The sequences to enter and exit standout mode are given as ssmmssoo and rrmmssoo, respectively. If the code to change into or out of standout mode leaves one or even two blank spaces on the screen, as the TVI 912 and Teleray 1061 do, then xxmmcc should be given to tell how many spaces are left. Codes to begin underlining and end underlining can be given as ssmmuull and rrmmuull respectively. If the terminal has a code to underline the current character and move the cursor one space to the right, such as the Microterm Mime, this can be given as uucc. Other capabilities to enter various highlighting modes include bblliinnkk

(blinking) bboolldd (bold or extra bright) ddiimm (dim or half-bright) iinnvviiss

(blanking or invisible text) pprroott (protected) rreevv (reverse video) ssggrr00 (turn off all attribute modes) ssmmaaccss (enter alternate character set mode) and rrmmaaccss (exit alternate character set mode). Turning on any of these modes singly may or may not turn off other modes. If there is a sequence to set arbitrary combinations of modes, this should be given as ssggrr (set attributes), taking 9 parameters. Each parameter is either 0 or nonzero, as the corresponding attribute is on or off. The 9 parameters are, in order: standout, underline, reverse, blink, dim, bold, blank, protect, alternate character set. Not all

modes need be supported by ssggrr, only those for which corresponding sep-

arate attribute commands exist. For example, the DEC vt220 supports most of the modes: ttppaarrmm ppaarraammeetteerr aattttrriibbuuttee eessccaappee sseeqquueennccee none none \E[0m p1 standout \E[0;1;7m p2 underline \E[0;4m p3 reverse \E[0;7m p4 blink \E[0;5m p5 dim not available p6 bold \E[0;1m p7 invis \E[0;8m p8 protect not used p9 altcharset ^O (off) ^N (on) We begin each escape sequence by turning off any existing modes, since there is no quick way to determine whether they are active. Standout

is set up to be the combination of reverse and bold. The vt220 termi-

nal has a protect mode, though it is not commonly used in sgr because it protects characters on the screen from the host's erasures. The altcharset mode also is different in that it is either ^O or ^N, depending on whether it is off or on. If all modes are turned on, the resulting sequence is \E[0;1;4;5;7;8m^N.

Some sequences are common to different modes. For example, ;7 is out-

put when either p1 or p3 is true, that is, if either standout or reverse modes are turned on. Writing out the above sequences, along with their dependencies yields sseeqquueennccee wwhheenn ttoo oouuttppuutt tteerrmmiinnffoo ttrraannssllaattiioonn \E[0 always \E[0

;1 if p1 or p6 %?%p1%p6%|%t;1%;

;4 if p2 %?%p2%|%t;4%;

;5 if p4 %?%p4%|%t;5%;

;7 if p1 or p3 %?%p1%p3%|%t;7%;

;8 if p7 %?%p7%|%t;8%;

m always m

^N or ^O if p9 ^N, else ^O %?%p9%t^N%e^O%;

Putting this all together into the sgr sequence gives:

sgr=\E[0%?%p1%p6%|%t;1%;%?%p2%t;4%;%?%p1%p3%|%t;7%;

%?%p4%t;5%;%?%p7%t;8%;m%?%p9%t\016%e\017%;,

Remember that if you specify sgr, you must also specify sgr0. Terminals with the ``magic cookie'' glitch (xxmmcc) deposit special

``cookies'' when they receive mode-setting sequences, which affect the

display algorithm rather than having extra bits for each character. Some terminals, such as the HP 2621, automatically leave standout mode when they move to a new line or the cursor is addressed. Programs using standout mode should exit standout mode before moving the cursor or sending a newline, unless the mmssggrr capability, asserting that it is safe to move in standout mode, is present. If the terminal has a way of flashing the screen to indicate an error quietly (a bell replacement) then this can be given as ffllaasshh; it must not move the cursor. If the cursor needs to be made more visible than normal when it is not

on the bottom line (to make, for example, a non-blinking underline into

an easier to find block or blinking underline) give this sequence as ccvvvviiss. If there is a way to make the cursor completely invisible, give that as cciivviiss. The capability ccnnoorrmm should be given which undoes the effects of both of these modes. If your terminal correctly generates underlined characters (with no special codes needed) even though it does not overstrike, then you should give the capability uull. If a character overstriking another leaves both characters on the screen, specify the capability ooss. If overstrikes are erasable with a blank, then this should be indicated by giving eeoo. KKeeyyppaadd aanndd FFuunnccttiioonn KKeeyyss If the terminal has a keypad that transmits codes when the keys are pressed, this information can be given. Note that it is not possible to handle terminals where the keypad only works in local (this applies, for example, to the unshifted HP 2621 keys). If the keypad can be set

to transmit or not transmit, give these codes as ssmmkkxx and rrmmkkxx. Other-

wise the keypad is assumed to always transmit. The codes sent by the left arrow, right arrow, up arrow, down arrow, and home keys can be given as kkccuubb11,, kkccuuff11,, kkccuuuu11,, kkccuudd11,, and kkhhoommee respectively. If there are function keys such as f0, f1, ..., f10, the codes they send can be given as kkff00,, kkff11,, ......,, kkff1100. If these keys have labels other than the default f0 through f10, the labels can be given as llff00,, llff11,, ......,, llff1100. The codes transmitted by certain other special keys can be given: kkllll (home down), kkbbss (backspace), kkttbbcc (clear all tabs), kkccttaabb (clear the tab stop in this column), kkccllrr (clear screen or erase key), kkddcchh11 (delete character), kkddll11 (delete line), kkrrmmiirr (exit insert mode), kkeell (clear to end of line), kkeedd (clear to end of screen), kkiicchh11 (insert character or enter insert mode), kkiill11 (insert line), kknnpp (next page),

kkpppp (previous page), kkiinndd (scroll forward/down), kkrrii (scroll back-

ward/up), kkhhttss (set a tab stop in this column). In addition, if the keypad has a 3 by 3 array of keys including the four arrow keys, the other five keys can be given as kkaa11, kkaa33, kkbb22, kkcc11, and kkcc33. These keys are useful when the effects of a 3 by 3 directional pad are needed. Strings to program function keys can be given as ppffkkeeyy, ppfflloocc, and ppffxx. A string to program screen labels should be specified as ppllnn. Each of these strings takes two parameters: the function key number to program (from 0 to 10) and the string to program it with. Function key numbers out of this range may program undefined keys in a terminal dependent manner. The difference between the capabilities is that ppffkkeeyy causes pressing the given key to be the same as the user typing the given string; ppfflloocc causes the string to be executed by the terminal in local; and ppffxx causes the string to be transmitted to the computer. The capabilities nnllaabb, llww and llhh define the number of programmable screen labels and their width and height. If there are commands to

turn the labels on and off, give them in ssmmllnn and rrmmllnn. ssmmllnn is nor-

mally output after one or more pln sequences to make sure that the change becomes visible. TTaabbss aanndd IInniittiiaalliizzaattiioonn If the terminal has hardware tabs, the command to advance to the next

tab stop can be given as hhtt (usually control I). A ``back-tab'' com-

mand which moves leftward to the preceding tab stop can be given as ccbbtt. By convention, if the teletype modes indicate that tabs are being

expanded by the computer rather than being sent to the terminal, pro-

grams should not use hhtt or ccbbtt even if they are present, since the user may not have the tab stops properly set. If the terminal has hardware

tabs which are initially set every n spaces when the terminal is pow-

ered up, the numeric parameter iitt is given, showing the number of spa-

ces the tabs are set to. This is normally used by the tset command to determine whether to set the mode for hardware tab expansion, and whether to set the tab stops. If the terminal has tab stops that can

be saved in non-volatile memory, the terminfo description can assume

that they are properly set. Other capabilities include iiss11, iiss22, and iiss33, initialization strings

for the terminal, iipprroogg, the path name of a program to be run to ini-

tialize the terminal, and iiff, the name of a file containing long ini-

tialization strings. These strings are expected to set the terminal

into modes consistent with the rest of the terminfo description. They

are normally sent to the terminal, by the init option of the tput pro-

gram, each time the user logs in. They will be printed in the follow-

ing order: run the program iipprroogg; output iiss11; iiss22; set the margins using mmggcc, ssmmggll and ssmmggrr; set tabs using ttbbcc and hhttss; print the file iiff; and finally output iiss33. Most initialization is done with iiss22. Special terminal modes can be set up without duplicating strings by putting the common sequences in iiss22 and special cases in iiss11 and iiss33. A pair of sequences that does a harder reset from a totally unknown state can be analogously given as

rrss11, rrss22, rrff, and rrss33, analogous to iiss22 and iiff. These strings are out-

put by the reset program, which is used when the terminal gets into a wedged state. Commands are normally placed in rrss11, rrss22 rrss33 and rrff only if they produce annoying effects on the screen and are not necessary when logging in. For example, the command to set the vt100 into

80-column mode would normally be part of iiss22, but it causes an annoying

glitch of the screen and is not normally needed since the terminal is usually already in 80 column mode. If there are commands to set and clear tab stops, they can be given as ttbbcc (clear all tab stops) and hhttss (set a tab stop in the current column of every row). If a more complex sequence is needed to set the tabs than can be described by this, the sequence can be placed in iiss22 or iiff. DDeellaayyss aanndd PPaaddddiinngg Many older and slower terminals don't support either XON/XOFF or DTR handshaking, including hard copy terminals and some very archaic CRTs

(including, for example, DEC VT100s). These may require padding char-

acters after certain cursor motions and screen changes. If the terminal uses xon/xoff handshaking for flow control (that is, it automatically emits ^S back to the host when its input buffers are close to full), set xxoonn. This capability suppresses the emission of

padding. You can also set it for memory-mapped console devices effec-

tively that don't have a speed limit. Padding information should still be included so that routines can make better decisions about relative costs, but actual pad characters will not be transmitted. If ppbb (padding baud rate) is given, padding is suppressed at baud rates below the value of ppbb. If the entry has no padding baud rate, then whether padding is emitted or not is completely controlled by xxoonn. If the terminal requires other than a null (zero) character as a pad, then this can be given as ppaadd. Only the first character of the ppaadd string is used. SSttaattuuss LLiinneess Some terminals have an extra `status line' which is not normally used by software (and thus not counted in the terminal's lliinneess capability).

The simplest case is a status line which is cursor-addressable but not

part of the main scrolling region on the screen; the Heathkit H19 has a

status line of this kind, as would a 24-line VT100 with a 23-line

scrolling region set up on initialization. This situation is indicated by the hhss capability. Some terminals with status lines need special sequences to access the status line. These may be expressed as a string with single parameter

ttssll which takes the cursor to a given zero-origin column on the status

line. The capability ffssll must return to the main-screen cursor posi-

tions before the last ttssll. You may need to embed the string values of sscc (save cursor) and rrcc (restore cursor) in ttssll and ffssll to accomplish this. The status line is normally assumed to be the same width as the width of the terminal. If this is untrue, you can specify it with the numeric capability wwssll. A command to erase or blank the status line may be specified as ddssll. The boolean capability eessllookk specifies that escape sequences, tabs, etc., work ordinarily in the status line. The nnccuurrsseess implementation does not yet use any of these capabilities. They are documented here in case they ever become important. LLiinnee GGrraapphhiiccss

Many terminals have alternate character sets useful for forms-drawing.

Terminfo and ccuurrsseess build in support for the drawing characters sup-

ported by the VT100, with some characters from the AT&T 4410v1 added. This alternate character set may be specified by the aaccsscc capability. GGllyypphh AACCSS AAsscciiii VVTT110000 NNaammee NNaammee DDeeffaauulltt NNaammee UK pound sign ACSSTERLING f } arrow pointing down ACSDARROW v . arrow pointing left ACSLARROW < , arrow pointing right ACSRARROW > +

arrow pointing up ACSUARROW ^ -

board of squares ACSBOARD # h

bullet ACSBULLET o ~ checker board (stipple) ACSCKBOARD : a degree symbol ACSDEGREE \ f diamond ACSDIAMOND + `

greater-than-or-equal-to ACSGEQUAL > z

greek pi ACSPI * {

horizontal line ACSHLINE - q

lantern symbol ACSLANTERN # i

large plus or crossover ACSPLUS + n

less-than-or-equal-to ACSLEQUAL < y

lower left corner ACSLLCORNER + m lower right corner ACSLRCORNER + j

not-equal ACSNEQUAL ! |

plus/minus ACSPLMINUS # g

scan line 1 ACSS1 ~ o

scan line 3 ACSS3 - p

scan line 7 ACSS7 - r

scan line 9 ACSS9 s

solid square block ACSBLOCK # 0

tee pointing down ACSTTEE + w tee pointing left ACSRTEE + u tee pointing right ACSLTEE + t tee pointing up ACSBTEE + v upper left corner ACSULCORNER + l upper right corner ACSURCORNER + k vertical line ACSVLINE | x The best way to define a new device's graphics set is to add a column to a copy of this table for your terminal, giving the character which (when emitted between ssmmaaccss/rrmmaaccss switches) will be rendered as the corresponding graphic. Then read off the VT100/your terminal character pairs right to left in sequence; these become the ACSC string. CCoolloorr HHaannddlliinngg

Most color terminals are either `Tektronix-like' or `HP-like'. Tek-

tronix-like terminals have a predefined set of N colors (where N usu-

ally 8), and can set character-cell foreground and background charac-

ters independently, mixing them into N * N color-pairs. On HP-like

terminals, the use must set each color pair up separately (foreground

and background are not independently settable). Up to M color-pairs

may be set up from 2*M different colors. ANSI-compatible terminals are

Tektronix-like.

Some basic color capabilities are independent of the color method. The numeric capabilities ccoolloorrss and ppaaiirrss specify the maximum numbers of

colors and color-pairs that can be displayed simultaneously. The oopp

(original pair) string resets foreground and background colors to their default values for the terminal. The oocc string resets all colors or

color-pairs to their default values for the terminal. Some terminals

(including many PC terminal emulators) erase screen areas with the cur-

rent background color rather than the power-up default background;

these should have the boolean capability bbccee.

To change the current foreground or background color on a Tektronix-

type terminal, use sseettaaff (set ANSI foreground) and sseettaabb (set ANSI background) or sseettff (set foreground) and sseettbb (set background). These take one parameter, the color number. The SVr4 documentation describes only sseettaaff/sseettaabb; the XPG4 draft says that "If the terminal supports ANSI escape sequences to set background and foreground, they should be coded as sseettaaff and sseettaabb, respectively. If the terminal supports other escape sequences to set background and foreground, they should be coded as sseettff and sseettbb, respectively. The vidputs() function and the refresh functions use sseettaaff and sseettaabb if they are defined."

The sseettaaff/sseettaabb and sseettff/sseettbb capabilities take a single numeric argu-

ment each. Argument values 0-7 of sseettaaff/sseettaabb are portably defined as

follows (the middle column is the symbolic #define available in the

header for the ccuurrsseess or nnccuurrsseess libraries). The terminal hardware is

free to map these as it likes, but the RGB values indicate normal loca-

tions in color space.

CCoolloorr ##ddeeffiinnee VVaalluuee RRGGBB

black CCOOLLOORRBBLLAACCKK 0 0, 0, 0 red CCOOLLOORRRREEDD 1 max,0,0 green CCOOLLOORRGGRREEEENN 2 0,max,0 yellow CCOOLLOORRYYEELLLLOOWW 3 max,max,0 blue CCOOLLOORRBBLLUUEE 4 0,0,max magenta CCOOLLOORRMMAAGGEENNTTAA 5 max,0,max cyan CCOOLLOORRCCYYAANN 6 0,max,max white CCOOLLOORRWWHHIITTEE 7 max,max,max The argument values of sseettff/sseettbb historically correspond to a different mapping, i.e.,

CCoolloorr ##ddeeffiinnee VVaalluuee RRGGBB

black CCOOLLOORRBBLLAACCKK 0 0, 0, 0 blue CCOOLLOORRBBLLUUEE 1 0,0,max green CCOOLLOORRGGRREEEENN 2 0,max,0 cyan CCOOLLOORRCCYYAANN 3 0,max,max red CCOOLLOORRRREEDD 4 max,0,0 magenta CCOOLLOORRMMAAGGEENNTTAA 5 max,0,max yellow CCOOLLOORRYYEELLLLOOWW 6 max,max,0 white CCOOLLOORRWWHHIITTEE 7 max,max,max

It is important to not confuse the two sets of color capabilities; oth-

erwise red/blue will be interchanged on the display.

On an HP-like terminal, use ssccpp with a color-pair number parameter to

set which color pair is current.

On a Tektronix-like terminal, the capability cccccc may be present to

indicate that colors can be modified. If so, the iinniittcc capability will

take a color number (0 to ccoolloorrss - 1)and three more parameters which

describe the color. These three parameters default to being inter-

preted as RGB (Red, Green, Blue) values. If the boolean capability hhllss is present, they are instead as HLS (Hue, Lightness, Saturation)

indices. The ranges are terminal-dependent.

On an HP-like terminal, iinniittpp may give a capability for changing a

color-pair value. It will take seven parameters; a color-pair number

(0 to mmaaxxppaaiirrss - 1), and two triples describing first background and

then foreground colors. These parameters must be (Red, Green, Blue) or (Hue, Lightness, Saturation) depending on hhllss.

On some color terminals, colors collide with highlights. You can reg-

ister these collisions with the nnccvv capability. This is a bit-mask of

attributes not to be used when colors are enabled. The correspondence with the attributes understood by ccuurrsseess is as follows: AAttttrriibbuuttee BBiitt DDeecciimmaall ASTANDOUT 0 1 AUNDERLINE 1 2 AREVERSE 2 4 ABLINK 3 8 ADIM 4 16 ABOLD 5 32 AINVIS 6 64 APROTECT 7 128 AALTCHARSET 8 256 For example, on many IBM PC consoles, the underline attribute collides with the foreground color blue and is not available in color mode. These should have an nnccvv capability of 2. SVr4 curses does nothing with nnccvv, ncurses recognizes it and optimizes the output in favor of colors. MMiisscceellllaanneeoouuss If the terminal requires other than a null (zero) character as a pad, then this can be given as pad. Only the first character of the pad string is used. If the terminal does not have a pad character, specify

npc. Note that ncurses implements the termcap-compatible PPCC variable;

though the application may set this value to something other than a null, ncurses will test nnppcc first and use napms if the terminal has no pad character. If the terminal can move up or down half a line, this can be indicated

with hhuu (half-line up) and hhdd (half-line down). This is primarily use-

ful for superscripts and subscripts on hard-copy terminals. If a hard-

copy terminal can eject to the next page (form feed), give this as ffff (usually control L). If there is a command to repeat a given character a given number of

times (to save time transmitting a large number of identical charac-

ters) this can be indicated with the parameterized string rreepp. The first parameter is the character to be repeated and the second is the number of times to repeat it. Thus, tparm(repeatchar, 'x', 10) is the same as `xxxxxxxxxx'. If the terminal has a settable command character, such as the TEKTRONIX 4025, this can be indicated with ccmmddcchh. A prototype command character is chosen which is used in all capabilities. This character is given in the ccmmddcchh capability to identify it. The following convention is supported on some UNIX systems: The environment is to be searched for a CCCC variable, and if found, all occurrences of the prototype character are replaced with the character in the environment variable. Terminal descriptions that do not represent a specific kind of known terminal, such as switch, dialup, patch, and network, should include the ggnn (generic) capability so that programs can complain that they do not know how to talk to the terminal. (This capability does not apply to virtual terminal descriptions for which the escape sequences are known.) If the terminal has a ``meta key'' which acts as a shift key, setting the 8th bit of any character transmitted, this fact can be indicated with kkmm. Otherwise, software will assume that the 8th bit is parity and it will usually be cleared. If strings exist to turn this ``meta mode'' on and off, they can be given as ssmmmm and rrmmmm. If the terminal has more lines of memory than will fit on the screen at once, the number of lines of memory can be indicated with llmm. A value

of llmm#0 indicates that the number of lines is not fixed, but that there

is still more memory than fits on the screen. If the terminal is one of those supported by the UNIX virtual terminal protocol, the terminal number can be given as vvtt. Media copy strings which control an auxiliary printer connected to the terminal can be given as mmcc00: print the contents of the screen, mmcc44: turn off the printer, and mmcc55: turn on the printer. When the printer is on, all text sent to the terminal will be sent to the printer. It is undefined whether the text is also displayed on the terminal screen when the printer is on. A variation mmcc55pp takes one parameter, and

leaves the printer on for as many characters as the value of the param-

eter, then turns the printer off. The parameter should not exceed 255. All text, including mmcc44, is transparently passed to the printer while an mmcc55pp is in effect. GGlliittcchheess aanndd BBrraaiinnddaammaaggee Hazeltine terminals, which do not allow `~' characters to be displayed should indicate hhzz.

Terminals which ignore a line-feed immediately after an aamm wrap, such

as the Concept and vt100, should indicate xxeennll. If eell is required to get rid of standout (instead of merely writing normal text on top of it), xxhhpp should be given. Teleray terminals, where tabs turn all characters moved over to blanks, should indicate xxtt (destructive tabs). Note: the variable indicating

this is now `desttabsmagicsmso'; in older versions, it was tel-

erayglitch. This glitch is also taken to mean that it is not possible to position the cursor on top of a ``magic cookie'', that to erase standout mode it is instead necessary to use delete and insert line. The ncurses implementation ignores this glitch. The Beehive Superbee, which is unable to correctly transmit the escape or control C characters, has xxssbb, indicating that the f1 key is used for escape and f2 for control C. (Only certain Superbees have this

problem, depending on the ROM.) Note that in older terminfo versions,

this capability was called `beehiveglitch'; it is now `noescctlc'.

Other specific terminal problems may be corrected by adding more capa-

bilities of the form xxx. SSiimmiillaarr TTeerrmmiinnaallss If there are two very similar terminals, one (the variant) can be

defined as being just like the other (the base) with certain excep-

tions. In the definition of the variant, the string capability uussee can be given with the name of the base terminal. The capabilities given before uussee override those in the base type named by uussee. If there are multiple uussee capabilities, they are merged in reverse order. That is, the rightmost uussee reference is processed first, then the one to its

left, and so forth. Capabilities given explicitly in the entry over-

ride those brought in by uussee references.

A capability can be canceled by placing xxxx@@ to the left of the use ref-

erence that imports it, where xx is the capability. For example, the entry

2621-nl, smkx@, rmkx@, use=2621,

defines a 2621-nl that does not have the ssmmkkxx or rrmmkkxx capabilities, and

hence does not turn on the function key labels when in visual mode. This is useful for different modes for a terminal, or for different user preferences. PPiittffaallllss ooff LLoonngg EEnnttrriieess

Long terminfo entries are unlikely to be a problem; to date, no entry

has even approached terminfo's 4K string-table maximum. Unfortunately,

the termcap translations are much more strictly limited (to 1K), thus

termcap translations of long terminfo entries can cause problems.

The man pages for 4.3BSD and older versions of tgetent() instruct the user to allocate a 1K buffer for the termcap entry. The entry gets

null-terminated by the termcap library, so that makes the maximum safe

length for a termcap entry 1k-1 (1023) bytes. Depending on what the

application and the termcap library being used does, and where in the

termcap file the terminal type that tgetent() is searching for is, sev-

eral bad things can happen. Some termcap libraries print a warning message or exit if they find an entry that's longer than 1023 bytes; others don't; others truncate the entries to 1023 bytes. Some application programs allocate more than the recommended 1K for the termcap entry; others don't. Each termcap entry has two important sizes associated with it: before "tc" expansion, and after "tc" expansion. "tc" is the capability that tacks on another termcap entry to the end of the current one, to add on its capabilities. If a termcap entry doesn't use the "tc" capability, then of course the two lengths are the same. The "before tc expansion" length is the most important one, because it affects more than just users of that particular terminal. This is the

length of the entry as it exists in /etc/termcap, minus the backslash-

newline pairs, which tgetent() strips out while reading it. Some term-

cap libraries strip off the final newline, too (GNU termcap does not). Now suppose: * a termcap entry before expansion is more than 1023 bytes long, * and the application has only allocated a 1k buffer, * and the termcap library (like the one in BSD/OS 1.1 and GNU) reads the whole entry into the buffer, no matter what its length, to see if it's the entry it wants, * and tgetent() is searching for a terminal type that either is the long entry, appears in the termcap file after the long entry, or doesn't appear in the file at all (so that tgetent() has to search the whole termcap file). Then tgetent() will overwrite memory, perhaps its stack, and probably

core dump the program. Programs like telnet are particularly vulnera-

ble; modern telnets pass along values like the terminal type automati-

cally. The results are almost as undesirable with a termcap library, like SunOS 4.1.3 and Ultrix 4.4, that prints warning messages when it reads an overly long termcap entry. If a termcap library truncates long entries, like OSF/1 3.0, it is immune to dying here but will return incorrect data for the terminal. The "after tc expansion" length will have a similar effect to the above, but only for people who actually set TERM to that terminal type, since tgetent() only does "tc" expansion once it's found the terminal type it was looking for, not while searching. In summary, a termcap entry that is longer than 1023 bytes can cause, on various combinations of termcap libraries and applications, a core dump, warnings, or incorrect operation. If it's too long even before "tc" expansion, it will have this effect even for users of some other terminal types and users whose TERM variable does not have a termcap entry.

When in -C (translate to termcap) mode, the nnccuurrsseess implementation of

ttiicc(1) issues warning messages when the pre-tc length of a termcap

translation is too long. The -c (check) option also checks resolved

(after tc expansion) lengths. BBiinnaarryy CCoommppaattiibbiilliittyy

It is not wise to count on portability of binary terminfo entries

between commercial UNIX versions. The problem is that there are at

least two versions of terminfo (under HP-UX and AIX) which diverged

from System V terminfo after SVr1, and have added extension capabili-

ties to the string table that (in the binary format) collide with Sys-

tem V and XSI Curses extensions. EEXXTTEENNSSIIOONNSS Some SVr4 ccuurrsseess implementations, and all previous to SVr4, don't

interpret the %A and %O operators in parameter strings.

SVr4/XPG4 do not specify whether mmssggrr licenses movement while in an

alternate-character-set mode (such modes may, among other things, map

CR and NL to characters that don't trigger local motions). The nnccuurrsseess

implementation ignores mmssggrr in AALLTTCCHHAARRSSEETT mode. This raises the possi-

bility that an XPG4 implementation making the opposite interpretation

may need terminfo entries made for nnccuurrsseess to have mmssggrr turned off.

The nnccuurrsseess library handles insert-character and insert-character modes

in a slightly non-standard way to get better update efficiency. See

the IInnsseerrtt//DDeelleettee CChhaarraacctteerr subsection above. The parameter substitutions for sseettcclloocckk and ddiissppllaayycclloocckk are not documented in SVr4 or the XSI Curses standard. They are deduced from the documentation for the AT&T 505 terminal.

Be careful assigning the kkmmoouuss capability. The nnccuurrsseess wants to inter-

pret it as KKEEYYMMOOUUSSEE, for use by terminals and emulators like xterm

that can return mouse-tracking information in the keyboard-input

stream.

Different commercial ports of terminfo and curses support different

subsets of the XSI Curses standard and (in some cases) different exten-

sion sets. Here is a summary, accurate as of October 1995:

SSVVRR44,, SSoollaarriiss,, nnccuurrsseess - These support all SVr4 capabilities.

SSGGII - Supports the SVr4 set, adds one undocumented extended string

capability (sseettppgglleenn).

SSVVrr11,, UUllttrriixx - These support a restricted subset of terminfo capabili-

ties. The booleans end with xxoonnxxooffff; the numerics with wwiiddtthhssttaa-

ttuusslliinnee; and the strings with pprrttrrnnoonn.

HHPP//UUXX - Supports the SVr1 subset, plus the SVr[234] numerics

nnuummllaabbeellss, llaabbeellhheeiigghhtt, llaabbeellwwiiddtthh, plus function keys 11 through 63, plus ppllaabbnnoorrmm, llaabbeelloonn, and llaabbeellooffff, plus some incompatible extensions in the string table.

AAIIXX - Supports the SVr1 subset, plus function keys 11 through 63, plus

a number of incompatible string table extensions.

OOSSFF - Supports both the SVr4 set and the AIX extensions.

FILES