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terminfo


Section: File Formats (5)
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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
nvi(1),
rogue(1)
and libraries such as
curses(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.
This describes ncurses
version 5.7 (patch 20090207).

Entries in
terminfo

consist of a sequence of `,’ separated fields (embedded commas may be
escaped with a backslash or notated as 54).
White space after the `,’ separator is ignored.
The first entry for each terminal gives the names which are known for the
terminal, separated 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.

Lines beginning with a `#’ in the first column are treated as comments.
While comment lines are legal at any point, the output of captoinfo
and infotocap (aliases for tic)
will move comments so they occur only between entries.

Newlines and leading tabs may be used for formatting entries for readability.
These are removed from parsed entries.
The infocmp -f option relies on this to format if-then-else expressions:
the result can be read by tic.

Terminal names (except for the last, verbose entry) should
be chosen using the following conventions.
The particular piece of hardware making 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 following suffixes should be used where possible:
















SuffixMeaningExample
-nnNumber of lines on the screenaaa-60
-npNumber of pages of memoryc100-4p
-amWith automargins (usually the default)vt100-am
-mMono mode; suppress coloransi-m
-mcMagic cookie; spaces when highlightingwy30-mc
-naNo arrow keys (leave them in local)c100-na
-namWithout automatic marginsvt100-nam
-nlNo status lineatt4415-nl
-nsNo status linehp2626-ns
-rvReverse videoc100-rv
-sEnable status linevt100-s
-vbUse visible bell instead of beepwy370-vb
-wWide mode (> 80 columns, usually 132)vt100-w

For more on terminal naming conventions, see the term(7) manual page.
 

Capabilities


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 variable is the name by which the programmer (at the terminfo level)
accesses the capability.


The capname 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 specification.


The termcap code is the old
termcap

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
Caps

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:









































VariableCap-TCapDescription
BooleansnameCode
auto_left_marginbwbw
cub1 wraps from column 0 to last column

auto_right_marginamam
terminal has automatic margins

back_color_erasebceut
screen erased with background color

can_changeccccc
terminal can re-define existing colors

ceol_standout_glitchxhpxs
standout not erased by overwriting (hp)

col_addr_glitchxhpaYA
only positive motion for hpa/mhpa caps

cpi_changes_rescpixYF
changing character pitch changes resolution

cr_cancels_micro_modecrxmYB
using cr turns off micro mode

dest_tabs_magic_smsoxtxt
tabs destructive, magic so char (t1061)

eat_newline_glitchxenlxn
newline ignored after 80 cols (concept)

erase_overstrikeeoeo
can erase overstrikes with a blank

generic_typegngn
generic line type

hard_copyhchc
hardcopy terminal

hard_cursorchtsHC
cursor is hard to see

has_meta_keykmkm
Has a meta key (i.e., sets 8th-bit)

has_print_wheeldaisyYC
printer needs operator to change character set

has_status_linehshs
has extra status line

hue_lightness_saturationhlshl
terminal uses only HLS color notation (Tektronix)

insert_null_glitchinin
insert mode distinguishes nulls

lpi_changes_reslpixYG
changing line pitch changes resolution

memory_abovedada
display may be retained above the screen

memory_belowdbdb
display may be retained below the screen

move_insert_modemirmi
safe to move while in insert mode

move_standout_modemsgrms
safe to move while in standout mode

needs_xon_xoffnxonnx
padding will not work, xon/xoff required

no_esc_ctlcxsbxb
beehive (f1=escape, f2=ctrl C)

no_pad_charnpcNP
pad character does not exist

non_dest_scroll_regionndscrND
scrolling region is non-destructive

non_rev_rmcupnrrmcNR
smcup does not reverse rmcup

over_strikeosos
terminal can overstrike

prtr_silentmc5i5i
printer will not echo on screen

row_addr_glitchxvpaYD
only positive motion for vpa/mvpa caps

semi_auto_right_marginsamYE
printing in last column causes cr

status_line_esc_okeslokes
escape can be used on the status line

tilde_glitchhzhz
cannot print ~’s (hazeltine)

transparent_underlineulul
underline character overstrikes

xon_xoffxonxo
terminal uses xon/xoff handshaking



These are the numeric capabilities:




















VariableCap-TCapDescription
NumericnameCode
columnscolsco
number of columns in a line

init_tabsitit
tabs initially every # spaces

label_heightlhlh
rows in each label

label_widthlwlw
columns in each label

lineslinesli
number of lines on screen or page

lines_of_memorylmlm
lines of memory if > line. 0 means varies

magic_cookie_glitchxmcsg
number of blank characters left by smso or rmso

max_attributesmama
maximum combined attributes terminal can handle

max_colorscolorsCo
maximum number of colors on screen

max_pairspairspa
maximum number of color-pairs on the screen

maximum_windowswnumMW
maximum number of defineable windows

no_color_videoncvNC
video attributes that cannot be used with colors

num_labelsnlabNl
number of labels on screen

padding_baud_ratepbpb
lowest baud rate where padding needed

virtual_terminalvtvt
virtual terminal number (CB/unix)

width_status_linewslws
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.





















VariableCap-TCapDescription
NumericnameCode
bit_image_entwiningbitwinYo
number of passes for each bit-image row

bit_image_typebitypeYp
type of bit-image device

buffer_capacitybufszYa
numbers of bytes buffered before printing

buttonsbtnsBT
number of buttons on mouse

dot_horz_spacingspinhYc
spacing of dots horizontally in dots per inch

dot_vert_spacingspinvYb
spacing of pins vertically in pins per inch

max_micro_addressmaddrYd
maximum value in micro_…_address

max_micro_jumpmjumpYe
maximum value in parm_…_micro

micro_col_sizemcsYf
character step size when in micro mode

micro_line_sizemlsYg
line step size when in micro mode

number_of_pinsnpinsYh
numbers of pins in print-head

output_res_charorcYi
horizontal resolution in units per line

output_res_horz_inchorhiYk
horizontal resolution in units per inch

output_res_lineorlYj
vertical resolution in units per line

output_res_vert_inchorviYl
vertical resolution in units per inch

print_ratecpsYm
print rate in characters per second

wide_char_sizewidcsYn
character step size when in double wide mode



These are the string capabilities:






































































































































































































































































































































































VariableCap-TCapDescription
StringnameCode
acs_charsacscac
graphics charset pairs, based on vt100

back_tabcbtbt
back tab (P)

bellbelbl
audible signal (bell) (P)

carriage_returncrcr
carriage return (P*) (P*)

change_char_pitchcpiZA
Change number of characters per inch to #1

change_line_pitchlpiZB
Change number of lines per inch to #1

change_res_horzchrZC
Change horizontal resolution to #1

change_res_vertcvrZD
Change vertical resolution to #1

change_scroll_regioncsrcs
change region to line #1 to line #2 (P)

char_paddingrmprP
like ip but when in insert mode

clear_all_tabstbcct
clear all tab stops (P)

clear_marginsmgcMC
clear right and left soft margins

clear_screenclearcl
clear screen and home cursor (P*)

clr_bolel1cb
Clear to beginning of line

clr_eolelce
clear to end of line (P)

clr_eosedcd
clear to end of screen (P*)

column_addresshpach
horizontal position #1, absolute (P)

command_charactercmdchCC
terminal settable cmd character in prototype !?

create_windowcwinCW
define a window #1 from #2,#3 to #4,#5

cursor_addresscupcm
move to row #1 columns #2

cursor_downcud1do
down one line

cursor_homehomeho
home cursor (if no cup)

cursor_invisiblecivisvi
make cursor invisible

cursor_leftcub1le
move left one space

cursor_mem_addressmrcupCM
memory relative cursor addressing, move to row #1 columns #2

cursor_normalcnormve
make cursor appear normal (undo civis/cvvis)

cursor_rightcuf1nd
non-destructive space (move right one space)

cursor_to_llllll
last line, first column (if no cup)

cursor_upcuu1up
up one line

cursor_visiblecvvisvs
make cursor very visible

define_chardefcZE
Define a character #1, #2 dots wide, descender #3

delete_characterdch1dc
delete character (P*)

delete_linedl1dl
delete line (P*)

dial_phonedialDI
dial number #1

dis_status_linedslds
disable status line

display_clockdclkDK
display clock

down_half_linehdhd
half a line down

ena_acsenacseA
enable alternate char set

enter_alt_charset_modesmacsas
start alternate character set (P)

enter_am_modesmamSA
turn on automatic margins

enter_blink_modeblinkmb
turn on blinking

enter_bold_modeboldmd
turn on bold (extra bright) mode

enter_ca_modesmcupti
string to start programs using cup

enter_delete_modesmdcdm
enter delete mode

enter_dim_modedimmh
turn on half-bright mode

enter_doublewide_modeswidmZF
Enter double-wide mode

enter_draft_qualitysdrfqZG
Enter draft-quality mode

enter_insert_modesmirim
enter insert mode

enter_italics_modesitmZH
Enter italic mode

enter_leftward_modeslmZI
Start leftward carriage motion

enter_micro_modesmicmZJ
Start micro-motion mode

enter_near_letter_qualitysnlqZK
Enter NLQ mode

enter_normal_qualitysnrmqZL
Enter normal-quality mode

enter_protected_modeprotmp
turn on protected mode

enter_reverse_moderevmr
turn on reverse video mode

enter_secure_modeinvismk
turn on blank mode (characters invisible)

enter_shadow_modesshmZM
Enter shadow-print mode

enter_standout_modesmsoso
begin standout mode

enter_subscript_modessubmZN
Enter subscript mode

enter_superscript_modessupmZO
Enter superscript mode

enter_underline_modesmulus
begin underline mode

enter_upward_modesumZP
Start upward carriage motion

enter_xon_modesmxonSX
turn on xon/xoff handshaking

erase_charsechec
erase #1 characters (P)

exit_alt_charset_modermacsae
end alternate character set (P)

exit_am_modermamRA
turn off automatic margins

exit_attribute_modesgr0me
turn off all attributes

exit_ca_modermcupte
strings to end programs using cup

exit_delete_modermdced
end delete mode

exit_doublewide_moderwidmZQ
End double-wide mode

exit_insert_modermirei
exit insert mode

exit_italics_moderitmZR
End italic mode

exit_leftward_moderlmZS
End left-motion mode

exit_micro_modermicmZT
End micro-motion mode

exit_shadow_modershmZU
End shadow-print mode

exit_standout_modermsose
exit standout mode

exit_subscript_modersubmZV
End subscript mode

exit_superscript_modersupmZW
End superscript mode

exit_underline_modermulue
exit underline mode

exit_upward_moderumZX
End reverse character motion

exit_xon_modermxonRX
turn off xon/xoff handshaking

fixed_pausepausePA
pause for 2-3 seconds

flash_hookhookfh
flash switch hook

flash_screenflashvb
visible bell (may not move cursor)

form_feedffff
hardcopy terminal page eject (P*)

from_status_linefslfs
return from status line

goto_windowwingoWG
go to window #1

hanguphupHU
hang-up phone

init_1stringis1i1
initialization string

init_2stringis2is
initialization string

init_3stringis3i3
initialization string

init_fileifif
name of initialization file

init_progiprogiP
path name of program for initialization

initialize_colorinitcIc
initialize color #1 to (#2,#3,#4)

initialize_pairinitpIp
Initialize color pair #1 to fg=(#2,#3,#4), bg=(#5,#6,#7)

insert_characterich1ic
insert character (P)

insert_lineil1al
insert line (P*)

insert_paddingipip
insert padding after inserted character

key_a1ka1K1
upper left of keypad

key_a3ka3K3
upper right of keypad

key_b2kb2K2
center of keypad

key_backspacekbskb
backspace key

key_begkbeg@1
begin key

key_btabkcbtkB
back-tab key

key_c1kc1K4
lower left of keypad

key_c3kc3K5
lower right of keypad

key_cancelkcan@2
cancel key

key_catabktbcka
clear-all-tabs key

key_clearkclrkC
clear-screen or erase key

key_closekclo@3
close key

key_commandkcmd@4
command key

key_copykcpy@5
copy key

key_createkcrt@6
create key

key_ctabkctabkt
clear-tab key

key_dckdch1kD
delete-character key

key_dlkdl1kL
delete-line key

key_downkcud1kd
down-arrow key

key_eickrmirkM
sent by rmir or smir in insert mode

key_endkend@7
end key

key_enterkent@8
enter/send key

key_eolkelkE
clear-to-end-of-line key

key_eoskedkS
clear-to-end-of-screen key

key_exitkext@9
exit key

key_f0kf0k0
F0 function key

key_f1kf1k1
F1 function key

key_f10kf10k;
F10 function key

key_f11kf11F1
F11 function key

key_f12kf12F2
F12 function key

key_f13kf13F3
F13 function key

key_f14kf14F4
F14 function key

key_f15kf15F5
F15 function key

key_f16kf16F6
F16 function key

key_f17kf17F7
F17 function key

key_f18kf18F8
F18 function key

key_f19kf19F9
F19 function key

key_f2kf2k2
F2 function key

key_f20kf20FA
F20 function key

key_f21kf21FB
F21 function key

key_f22kf22FC
F22 function key

key_f23kf23FD
F23 function key

key_f24kf24FE
F24 function key

key_f25kf25FF
F25 function key

key_f26kf26FG
F26 function key

key_f27kf27FH
F27 function key

key_f28kf28FI
F28 function key

key_f29kf29FJ
F29 function key

key_f3kf3k3
F3 function key

key_f30kf30FK
F30 function key

key_f31kf31FL
F31 function key

key_f32kf32FM
F32 function key

key_f33kf33FN
F33 function key

key_f34kf34FO
F34 function key

key_f35kf35FP
F35 function key

key_f36kf36FQ
F36 function key

key_f37kf37FR
F37 function key

key_f38kf38FS
F38 function key

key_f39kf39FT
F39 function key

key_f4kf4k4
F4 function key

key_f40kf40FU
F40 function key

key_f41kf41FV
F41 function key

key_f42kf42FW
F42 function key

key_f43kf43FX
F43 function key

key_f44kf44FY
F44 function key

key_f45kf45FZ
F45 function key

key_f46kf46Fa
F46 function key

key_f47kf47Fb
F47 function key

key_f48kf48Fc
F48 function key

key_f49kf49Fd
F49 function key

key_f5kf5k5
F5 function key

key_f50kf50Fe
F50 function key

key_f51kf51Ff
F51 function key

key_f52kf52Fg
F52 function key

key_f53kf53Fh
F53 function key

key_f54kf54Fi
F54 function key

key_f55kf55Fj
F55 function key

key_f56kf56Fk
F56 function key

key_f57kf57Fl
F57 function key

key_f58kf58Fm
F58 function key

key_f59kf59Fn
F59 function key

key_f6kf6k6
F6 function key

key_f60kf60Fo
F60 function key

key_f61kf61Fp
F61 function key

key_f62kf62Fq
F62 function key

key_f63kf63Fr
F63 function key

key_f7kf7k7
F7 function key

key_f8kf8k8
F8 function key

key_f9kf9k9
F9 function key

key_findkfnd@0
find key

key_helpkhlp%1
help key

key_homekhomekh
home key

key_ickich1kI
insert-character key

key_ilkil1kA
insert-line key

key_leftkcub1kl
left-arrow key

key_llkllkH
lower-left key (home down)

key_markkmrk%2
mark key

key_messagekmsg%3
message key

key_movekmov%4
move key

key_nextknxt%5
next key

key_npageknpkN
next-page key

key_openkopn%6
open key

key_optionskopt%7
options key

key_ppagekppkP
previous-page key

key_previouskprv%8
previous key

key_printkprt%9
print key

key_redokrdo%0
redo key

key_referencekref&1
reference key

key_refreshkrfr&2
refresh key

key_replacekrpl&3
replace key

key_restartkrst&4
restart key

key_resumekres&5
resume key

key_rightkcuf1kr
right-arrow key

key_saveksav&6
save key

key_sbegkBEG&9
shifted begin key

key_scancelkCAN&0
shifted cancel key

key_scommandkCMD*1
shifted command key

key_scopykCPY*2
shifted copy key

key_screatekCRT*3
shifted create key

key_sdckDC*4
shifted delete-character key

key_sdlkDL*5
shifted delete-line key

key_selectkslt*6
select key

key_sendkEND*7
shifted end key

key_seolkEOL*8
shifted clear-to-end-of-line key

key_sexitkEXT*9
shifted exit key

key_sfkindkF
scroll-forward key

key_sfindkFND*0
shifted find key

key_shelpkHLP#1
shifted help key

key_shomekHOM#2
shifted home key

key_sickIC#3
shifted insert-character key

key_sleftkLFT#4
shifted left-arrow key

key_smessagekMSG%a
shifted message key

key_smovekMOV%b
shifted move key

key_snextkNXT%c
shifted next key

key_soptionskOPT%d
shifted options key

key_spreviouskPRV%e
shifted previous key

key_sprintkPRT%f
shifted print key

key_srkrikR
scroll-backward key

key_sredokRDO%g
shifted redo key

key_sreplacekRPL%h
shifted replace key

key_srightkRIT%i
shifted right-arrow key

key_srsumekRES%j
shifted resume key

key_ssavekSAV!1
shifted save key

key_ssuspendkSPD!2
shifted suspend key

key_stabkhtskT
set-tab key

key_sundokUND!3
shifted undo key

key_suspendkspd&7
suspend key

key_undokund&8
undo key

key_upkcuu1ku
up-arrow key

keypad_localrmkxke
leave ‘keyboard_transmit’ mode

keypad_xmitsmkxks
enter ‘keyboard_transmit’ mode

lab_f0lf0l0
label on function key f0 if not f0

lab_f1lf1l1
label on function key f1 if not f1

lab_f10lf10la
label on function key f10 if not f10

lab_f2lf2l2
label on function key f2 if not f2

lab_f3lf3l3
label on function key f3 if not f3

lab_f4lf4l4
label on function key f4 if not f4

lab_f5lf5l5
label on function key f5 if not f5

lab_f6lf6l6
label on function key f6 if not f6

lab_f7lf7l7
label on function key f7 if not f7

lab_f8lf8l8
label on function key f8 if not f8

lab_f9lf9l9
label on function key f9 if not f9

label_formatflnLf
label format

label_offrmlnLF
turn off soft labels

label_onsmlnLO
turn on soft labels

meta_offrmmmo
turn off meta mode

meta_onsmmmm
turn on meta mode (8th-bit on)

micro_column_addressmhpaZY
Like column_address in micro mode

micro_downmcud1ZZ
Like cursor_down in micro mode

micro_leftmcub1Za
Like cursor_left in micro mode

micro_rightmcuf1Zb
Like cursor_right in micro mode

micro_row_addressmvpaZc
Like row_address #1 in micro mode

micro_upmcuu1Zd
Like cursor_up in micro mode

newlinenelnw
newline (behave like cr followed by lf)

order_of_pinsporderZe
Match software bits to print-head pins

orig_colorsococ
Set all color pairs to the original ones

orig_pairopop
Set default pair to its original value

pad_charpadpc
padding char (instead of null)

parm_dchdchDC
delete #1 characters (P*)

parm_delete_linedlDL
delete #1 lines (P*)

parm_down_cursorcudDO
down #1 lines (P*)

parm_down_micromcudZf
Like parm_down_cursor in micro mode

parm_ichichIC
insert #1 characters (P*)

parm_indexindnSF
scroll forward #1 lines (P)

parm_insert_lineilAL
insert #1 lines (P*)

parm_left_cursorcubLE
move #1 characters to the left (P)

parm_left_micromcubZg
Like parm_left_cursor in micro mode

parm_right_cursorcufRI
move #1 characters to the right (P*)

parm_right_micromcufZh
Like parm_right_cursor in micro mode

parm_rindexrinSR
scroll back #1 lines (P)

parm_up_cursorcuuUP
up #1 lines (P*)

parm_up_micromcuuZi
Like parm_up_cursor in micro mode

pkey_keypfkeypk
program function key #1 to type string #2

pkey_localpflocpl
program function key #1 to execute string #2

pkey_xmitpfxpx
program function key #1 to transmit string #2

plab_normplnpn
program label #1 to show string #2

print_screenmc0ps
print contents of screen

prtr_nonmc5ppO
turn on printer for #1 bytes

prtr_offmc4pf
turn off printer

prtr_onmc5po
turn on printer

pulsepulsePU
select pulse dialing

quick_dialqdialQD
dial number #1 without checking

remove_clockrmclkRC
remove clock

repeat_charreprp
repeat char #1 #2 times (P*)

req_for_inputrfiRF
send next input char (for ptys)

reset_1stringrs1r1
reset string

reset_2stringrs2r2
reset string

reset_3stringrs3r3
reset string

reset_filerfrf
name of reset file

restore_cursorrcrc
restore cursor to position of last save_cursor

row_addressvpacv
vertical position #1 absolute (P)

save_cursorscsc
save current cursor position (P)

scroll_forwardindsf
scroll text up (P)

scroll_reverserisr
scroll text down (P)

select_char_setscsZj
Select character set, #1

set_attributessgrsa
define video attributes #1-#9 (PG9)

set_backgroundsetbSb
Set background color #1

set_bottom_marginsmgbZk
Set bottom margin at current line

set_bottom_margin_parmsmgbpZl
Set bottom margin at line #1 or (if smgtp is not given) #2 lines from bottom

set_clocksclkSC
set clock, #1 hrs #2 mins #3 secs

set_color_pairscpsp
Set current color pair to #1

set_foregroundsetfSf
Set foreground color #1

set_left_marginsmglML
set left soft margin at current column.  See smgl. (ML is not in BSD termcap).


set_left_margin_parmsmglpZm
Set left (right) margin at column #1

set_right_marginsmgrMR
set right soft margin at current column

set_right_margin_parmsmgrpZn
Set right margin at column #1

set_tabhtsst
set a tab in every row, current columns

set_top_marginsmgtZo
Set top margin at current line

set_top_margin_parmsmgtpZp
Set top (bottom) margin at row #1

set_windowwindwi
current window is lines #1-#2 cols #3-#4

start_bit_imagesbimZq
Start printing bit image graphics

start_char_set_defscsdZr
Start character set definition #1, with #2 characters in the set

stop_bit_imagerbimZs
Stop printing bit image graphics

stop_char_set_defrcsdZt
End definition of character set #1

subscript_characterssubcsZu
List of subscriptable characters

superscript_characterssupcsZv
List of superscriptable characters

tabhtta
tab to next 8-space hardware tab stop

these_cause_crdocrZw
Printing any of these characters causes CR

to_status_linetslts
move to status line, column #1

tonetoneTO
select touch tone dialing

underline_charucuc
underline char and move past it

up_half_linehuhu
half a line up

user0u0u0
User string #0

user1u1u1
User string #1

user2u2u2
User string #2

user3u3u3
User string #3

user4u4u4
User string #4

user5u5u5
User string #5

user6u6u6
User string #6

user7u7u7
User string #7

user8u8u8
User string #8

user9u9u9
User string #9

wait_tonewaitWA
wait for dial-tone

xoff_characterxoffcXF
XOFF character

xon_characterxoncXN
XON character

zero_motionzeromZx
No motion for subsequent character



The following string capabilities are present in the SVr4.0 term structure,
but were originally not documented in the man page.




































VariableCap-TCapDescription
StringnameCode
alt_scancode_escscesaS8
Alternate escape for scancode emulation

bit_image_carriage_returnbicrYv
Move to beginning of same row

bit_image_newlinebinelZz
Move to next row of the bit image

bit_image_repeatbirepXy
Repeat bit image cell #1 #2 times

char_set_namescsnmZy
Produce #1’th item from list of character set names

code_set_initcsinci
Init sequence for multiple codesets

color_namescolornmYw
Give name for color #1

define_bit_image_regiondefbiYx
Define rectangualar bit image region

device_typedevtdv
Indicate language/codeset support

display_pc_chardispcS1
Display PC character #1

end_bit_image_regionendbiYy
End a bit-image region

enter_pc_charset_modesmpchS2
Enter PC character display mode

enter_scancode_modesmscS4
Enter PC scancode mode

exit_pc_charset_modermpchS3
Exit PC character display mode

exit_scancode_modermscS5
Exit PC scancode mode

get_mousegetmGm
Curses should get button events, parameter #1 not documented.

key_mousekmousKm
Mouse event has occurred

mouse_infominfoMi
Mouse status information

pc_term_optionspctrmS6
PC terminal options

pkey_plabpfxlxl
Program function key #1 to type string #2 and show string #3

req_mouse_posreqmpRQ
Request mouse position

scancode_escapescescS7
Escape for scancode emulation

set0_des_seqs0dss0
Shift to codeset 0 (EUC set 0, ASCII)

set1_des_seqs1dss1
Shift to codeset 1

set2_des_seqs2dss2
Shift to codeset 2

set3_des_seqs3dss3
Shift to codeset 3

set_a_backgroundsetabAB
Set background color to #1, using ANSI escape

set_a_foregroundsetafAF
Set foreground color to #1, using ANSI escape

set_color_bandsetcolorYz
Change to ribbon color #1

set_lr_marginsmglrML
Set both left and right margins to #1, #2. (ML is not in BSD termcap).

set_page_lengthslinesYZ
Set page length to #1 lines

set_tb_marginsmgtbMT
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 ncurses termcap 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!












VariableCap-TCapDescription
StringnameCode
enter_horizontal_hl_modeehhlmXh
Enter horizontal highlight mode

enter_left_hl_modeelhlmXl
Enter left highlight mode

enter_low_hl_modeelohlmXo
Enter low highlight mode

enter_right_hl_modeerhlmXr
Enter right highlight mode

enter_top_hl_modeethlmXt
Enter top highlight mode

enter_vertical_hl_modeevhlmXv
Enter vertical highlight mode

set_a_attributessgr1sA
Define second set of video attributes #1-#6

set_pglen_inchslengthsL
YI Set page length to #1 hundredth of an inch



 

A Sample Entry

The following entry, describing an ANSI-standard terminal, is representative
of what a terminfo 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%[email protected], 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=rE[S,
op=E[37;40m, rep=%p1%cE[%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 terminal
or the size of particular delays, and string
capabilities, which give a sequence which can be used to perform particular
terminal operations.

 

Types of Capabilities

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 am.
Hence the description of ansi includes am.
Numeric capabilities are followed by the character `#’ and then a positive value.
Thus cols, 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 conventions (e.g., 255, 0377 and 0xff or 0xFF).

Finally, string valued capabilities, such as el (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 capabilities
for easy encoding of characters there.
Both E and e
map to an ESCAPE character,
^x maps to a control-x for any appropriate x, and the sequences
n l r t b f s give
a newline, line-feed, return, tab, backspace, form-feed, and space.
Other escapes include ^ for ^,
\ for ,
, for comma,
: for :,
and for null.
( 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
$<..> brackets, as in el=EK$<5>, and padding characters are supplied by
tputs

to provide this delay.
The delay must be a number 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 xon
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 xon 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
ind

in the example above.

 

Fetching Compiled Descriptions

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 ncurses version of the terminfo reader code
will instead look in the directory $HOME/.terminfo
for a compiled description.
If it fails to find one there, and the environment variable TERMINFO_DIRS is
set, it will interpret the contents of that variable 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
TERMINFO_DIRS directories, the fetch fails.

If neither TERMINFO nor TERMINFO_DIRS is set, the last place tried will be the
system terminfo directory, /usr/share/terminfo.

(Neither the $HOME/.terminfo lookups nor TERMINFO_DIRS extensions are
supported under stock System V terminfo/curses.)

 

Preparing Descriptions

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.

 

Basic Capabilities

The number of columns on each line for the terminal is given by the
cols numeric capability.
If the terminal is a CRT, then the
number of lines on the screen is given by the lines capability.
If the terminal wraps around to the beginning of the next line when
it reaches the right margin, then it should have the am capability.
If the terminal can clear its screen, leaving the cursor in the home
position, then this is given by the clear string capability.
If the terminal overstrikes
(rather than clearing a position when a character is struck over)
then it should have the os capability.
If the terminal is a printing terminal, with no soft copy unit,
give it both
hc

and
os.

(os

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
cr.

(Normally this will be carriage return, control M.)
If there is a code to produce an audible signal (bell, beep, etc)
give this as
bel.

If there is a code to move the cursor one position to the left
(such as backspace) that capability should be given as
cub1.

Similarly, codes to move to the right, up, and down should be
given as
cuf1,

cuu1,

and
cud1.

These local cursor motions should not alter the text they pass over,
for example, you would not normally use `cuf1= ‘ 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
bw

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
ind

(index) string.

To scroll text down, a program goes to the top left corner
of the screen and sends the
ri

(reverse index) string.
The strings
ind

and
ri

are undefined when not on their respective corners of the screen.

Parameterized versions of the scrolling sequences are
indn

and
rin

which have the same semantics as
ind

and
ri

except that they take one parameter, and scroll that many lines.
They are also undefined except at the appropriate edge of the screen.

The am 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
cuf1

from the last column.
The only local motion which is defined from the left edge is if
bw

is given, then a
cub1

from the left edge will move to the right edge of the previous row.
If
bw

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., am.
If the terminal has a command which moves to the first column of the next
line, that command can be given as
nel

(newline).
It does not matter if the command clears the remainder of the current line,
so if the terminal has no
cr

and
lf

it may still be possible to craft a working
nel

out of one or both of them.

These capabilities suffice to describe hard-copy and “glass-tty” terminals.
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,

 

Parameterized Strings

Cursor addressing and other strings requiring parameters
in the terminal are described by a
parameterized string capability, with
printf(3)

like escapes %x in it.
For example, to address the cursor, the
cup

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
mrcup.

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 special 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 sgr string.

The % encodings have the following meanings:


%%

outputs `%’
%[[:]flags][width[.precision]][doxXs]

as in printf, flags are [-+#] and space.
Use a `:’ to allow the next character to be a `-‘ flag,
avoiding interpreting "%-" as an operator.
%c

print pop() like %c in printf
%s

print pop() like %s in printf
%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 tparm.
However, that fact is not documented 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 (AND, OR and exclusive-OR): push(pop() op pop())
%= %> %<

logical operations: push(pop() op pop())
%A, %O

logical AND and OR operations (for conditionals)
%! %~

unary operations (logical and bit complement): push(op pop())
%i

add 1 to first two parameters (for ANSI terminals)
%? expr %t thenpart %e elsepart %;

This forms an if-then-else.
The %e elsepart is optional.
Usually the %? expr part pushes a value onto the stack,
and %t pops it from the stack, testing if it is nonzero (true).
If it is zero (false), control passes to the %e (else) part.

It is possible to form else-if’s a la Algol 68:

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


where ci are conditions, bi are bodies.

Use the -f option of tic or infocmp to see
the structure of if-the-else’s.
Some strings, e.g., sgr can be very complicated when written
on one line.
The -f option splits the string into lines with the parts indented.

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 variables 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 cup capability is “cup=6E&%p2%2dc%p1%2dY”.

The Microterm ACT-IV needs the current row and column sent
preceded by a ^T, 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 (cub1),
and to move the cursor up one line on the screen (cuu1).
This is necessary because it is not always safe to transmit n
^D and r, 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.

 

Cursor Motions

If the terminal has a fast way to home the cursor
(to very upper left corner of screen) then this can be given as
home; similarly a fast way of getting to the lower left-hand corner
can be given as ll; this may involve going up with cuu1
from the home position,
but a program should never do this itself (unless ll 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 corner of the screen, not of memory.
(Thus, the EH sequence on HP terminals cannot be used for
home.)

If the terminal has row or column absolute cursor addressing,
these can be given as single parameter capabilities
hpa

(horizontal position absolute)
and
vpa

(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
cup.

If there are parameterized local motions (e.g., move
n

spaces to the right) these can be given as
cud,

cub,

cuf,

and
cuu

with a single parameter indicating how many spaces to move.
These are primarily useful if the terminal does not have
cup,

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 smcup and rmcup.
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 cursor addressing, a one screen-sized window must be fixed into
the terminal for cursor addressing to work properly.
This is also used for the TEKTRONIX 4025,
where
smcup

sets the command character to be the one used by terminfo.
If the smcup sequence will not restore the screen after an
rmcup sequence is output (to the state prior to outputting
rmcup), specify nrrmc.

 

Area Clears

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 el.
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 el1.
If the terminal can clear from the current position to the end of the
display, then this should be given as ed.
Ed 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
ed

is not available.)

 

Insert/delete line and vertical motions

If the terminal can open a new blank line before the line where the cursor
is, this should be given as il1; 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 dl1; this is done only from the first position on
the line to be deleted.
Versions of
il1

and
dl1

which take a single parameter and insert or delete that many lines can
be given as
il

and
dl.

If the terminal has a settable scrolling region (like the vt100)
the command to set this can be described with the
csr

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
csr

on a properly chosen region; the
sc

and
rc

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

Yet another way to construct insert and delete might be to use a combination 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
ri

or
ind

on many terminals without a true insert/delete line,
and is often faster even on terminals with those features.

The boolean non_dest_scroll_region should be set if each scrolling
window 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 ri followed by dl1 or ind.
If the data scrolled
off the bottom of the region by the ri re-appears, then scrolling
is non-destructive.
System V and XSI Curses expect that ind, ri,
indn, and rin will simulate destructive scrolling; their
documentation cautions you not to define csr unless this is true.
This curses implementation is more liberal and will do explicit erases
after scrolling if ndstr 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
wind.

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
da capability should be given; if display memory can be retained
below, then db should be given.
These indicate
that deleting a line or scrolling may bring non-blank lines up from below
or that scrolling back with ri may bring down non-blank lines.

 

Insert/Delete Character

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 characters
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 second type of
terminal, and should give the capability in, 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 smir the sequence to get into insert mode.
Give as rmir the sequence to leave insert mode.
Now give as ich1 any sequence needed to be sent just before sending
the character to be inserted.
Most terminals with a true insert mode
will not give ich1; 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 ich1.
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 ich sequences do not
require previous smir, and most smir insert modes do not require ich1
before each character.
Therefore, the new curses actually assumes this
is the case and uses either rmir/smir or ich/ich1 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
rmir/smir sequences in ich1.

If post insert padding is needed, give this as a number of milliseconds
in ip (a string option).
Any other sequence which may need to be
sent after an insert of a single character may also be given in ip.
If your terminal needs both to be placed into an `insert mode’ and
a special code to precede each inserted character, then both
smir/rmir

and
ich1

can be given, and both will be used.
The
ich

capability, with one parameter,
n,

will repeat the effects of
ich1

n

times.

If padding is necessary between characters typed while not
in insert mode, give this as a number of milliseconds padding in rmp.

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 mir to speed up inserting
in this case.
Omitting mir will affect only speed.
Some terminals
(notably Datamedia’s) must not have mir because of the way their
insert mode works.

Finally, you can specify
dch1

to delete a single character,
dch

with one parameter,
n,

to delete
n characters,

and delete mode by giving smdc and rmdc
to enter and exit delete mode (any mode the terminal needs to be placed
in for
dch1

to work).

A command to erase
n

characters (equivalent to outputting
n

blanks without moving the cursor)
can be given as
ech

with one parameter.

 

Highlighting, Underlining, and Visible Bells

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 smso and rmso, 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 xmc should be given to tell how many spaces are left.

Codes to begin underlining and end underlining can be given as smul
and rmul 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 uc.

Other capabilities to enter various highlighting modes include
blink

(blinking)
bold

(bold or extra bright)
dim

(dim or half-bright)
invis

(blanking or invisible text)
prot

(protected)
rev

(reverse video)
sgr0

(turn off
all

attribute modes)
smacs

(enter alternate character set mode)
and
rmacs

(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
sgr

(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
sgr,

only those for which corresponding separate attribute commands exist.

For example, the DEC vt220 supports most of the modes:














tparm parameterattributeescape sequence

nonenoneE[0m

p1standoutE[0;1;7m

p2underlineE[0;4m

p3reverseE[0;7m

p4blinkE[0;5m

p5dimnot available

p6boldE[0;1m

p7invisE[0;8m

p8protectnot used

p9altcharset^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 terminal 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 output 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












sequencewhen to outputterminfo translation

E[0alwaysE[0

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

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

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

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

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

malwaysm

^N or ^Oif 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%t16%e17%;,

Remember that if you specify sgr, you must also specify sgr0.
Also, some implementations rely on sgr being given if sgr0 is,
Not all terminfo entries necessarily have an sgr string, however.
Many terminfo entries are derived from termcap entries
which have no sgr string.
The only drawback to adding an sgr string is that termcap also
assumes that sgr0 does not exit alternate character set mode.

Terminals with the “magic cookie” glitch
(xmc)

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
msgr

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 flash; 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
cvvis.

If there is a way to make the cursor completely invisible, give that as
civis.

The capability
cnorm

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 ul.
If a character overstriking another leaves both characters on the screen,
specify the capability os.
If overstrikes are erasable with a blank,
then this should be indicated by giving eo.

 

Keypad and Function Keys

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 smkx and rmkx.
Otherwise 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
kcub1, kcuf1, kcuu1, kcud1, and khome respectively.
If there are function keys such as f0, f1, …, f10, the codes they send
can be given as kf0, kf1, …, kf10.
If these keys have labels other than the default f0 through f10, the labels
can be given as lf0, lf1, …, lf10.
The codes transmitted by certain other special keys can be given:
kll

(home down),
kbs

(backspace),
ktbc

(clear all tabs),
kctab

(clear the tab stop in this column),
kclr

(clear screen or erase key),
kdch1

(delete character),
kdl1

(delete line),
krmir

(exit insert mode),
kel

(clear to end of line),
ked

(clear to end of screen),
kich1

(insert character or enter insert mode),
kil1

(insert line),
knp

(next page),
kpp

(previous page),
kind

(scroll forward/down),
kri

(scroll backward/up),
khts

(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
ka1,

ka3,

kb2,

kc1,

and
kc3.

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
pfkey,

pfloc,

and
pfx.

A string to program screen labels should be specified as pln.
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
pfkey

causes pressing the given key to be the same as the user typing the
given string;
pfloc

causes the string to be executed by the terminal in local; and
pfx

causes the string to be transmitted to the computer.

The capabilities nlab, lw and lh
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 smln and rmln.
smln is normally output after one or more pln
sequences to make sure that the change becomes visible.

 

Tabs and Initialization

If the terminal has hardware tabs, the command to advance to the next
tab stop can be given as
ht

(usually control I).
A “back-tab” command which moves leftward to the preceding tab stop can
be given as
cbt.

By convention, if the teletype modes indicate that tabs are being
expanded by the computer rather than being sent to the terminal,
programs should not use
ht

or
cbt

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 powered up,
the numeric parameter
it

is given, showing the number of spaces 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
is1,

is2,

and
is3,

initialization strings for the terminal,
iprog,

the path name of a program to be run to initialize the terminal,
and if, the name of a file containing long initialization 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

program, each time the user logs in.
They will be printed in the following order:



run the program

iprog

output

is1

is2

set the margins using

mgc,

smgl

and
smgr

set tabs using

tbc

and
hts

print the file

if

and finally

output
is3.


Most initialization is done with
is2.

Special terminal modes can be set up without duplicating strings
by putting the common sequences in
is2

and special cases in
is1

and
is3.

A set of sequences that does a harder reset from a totally unknown state
can be given as
rs1,

rs2,

rf

and
rs3,

analogous to
is1 ,

is2 ,

if

and
is3

respectively.
These strings are output by the
reset

program, which is used when the terminal gets into a wedged state.
Commands are normally placed in
rs1,

rs2

rs3

and
rf

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
is2,

but it causes an annoying glitch of the screen and is not normally
needed since the terminal is usually already in 80 column mode.

The
reset

program writes strings
including
iprog,

etc., in the same order as the
init

program, using
rs1,

etc., instead of
is1,

etc.
If any of
rs1,

rs2,

rs3,

or
rf

reset capability strings are missing, the
reset

program falls back upon the corresponding initialization capability string.

If there are commands to set and clear tab stops, they can be given as
tbc

(clear all tab stops)
and
hts

(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
is2

or
if.

 

Delays and Padding

Many older and slower terminals do not 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 characters
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
xon.

This capability suppresses the emission of padding.
You can also set it
for memory-mapped console devices effectively that do not 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 pb (padding baud rate) is given, padding is suppressed at baud rates
below the value of pb.
If the entry has no padding baud rate, then
whether padding is emitted or not is completely controlled by xon.

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.

 

Status Lines

Some terminals have an extra `status line’ which is not normally used by
software (and thus not counted in the terminal’s lines 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 hs capability.

Some terminals with status lines need special sequences to access the
status line.
These may be expressed as a string with single parameter
tsl which takes the cursor to a given zero-origin column on the
status line.
The capability fsl must return to the main-screen
cursor positions before the last tsl.
You may need to embed the
string values of sc (save cursor) and rc (restore cursor)
in tsl and fsl 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 wsl.

A command to erase or blank the status line may be specified as dsl.

The boolean capability eslok specifies that escape sequences, tabs,
etc., work ordinarily in the status line.

The ncurses implementation does not yet use any of these capabilities.
They are documented here in case they ever become important.

 

Line Graphics

Many terminals have alternate character sets useful for forms-drawing.
Terminfo and curses build in support for the drawing characters
supported by the VT100, with some characters from the AT&T 4410v1 added.
This alternate character set may be specified by the acsc capability.




































GlyphACSAsciiVT100
NameNameDefaultName
UK pound signACS_STERLINGf}
arrow pointing downACS_DARROWv.
arrow pointing leftACS_LARROW<,
arrow pointing rightACS_RARROW>+
arrow pointing upACS_UARROW^-
board of squaresACS_BOARD#h
bulletACS_BULLETo~
checker board (stipple)ACS_CKBOARD:a
degree symbolACS_DEGREEf
diamondACS_DIAMOND+`
greater-than-or-equal-toACS_GEQUAL>z
greek piACS_PI*{
horizontal lineACS_HLINE-q
lantern symbolACS_LANTERN#i
large plus or crossoverACS_PLUS+n
less-than-or-equal-toACS_LEQUAL<y
lower left cornerACS_LLCORNER+m
lower right cornerACS_LRCORNER+j
not-equalACS_NEQUAL!|
plus/minusACS_PLMINUS#g
scan line 1ACS_S1~o
scan line 3ACS_S3-p
scan line 7ACS_S7-r
scan line 9ACS_S9_s
solid square blockACS_BLOCK#0
tee pointing downACS_TTEE+w
tee pointing leftACS_RTEE+u
tee pointing rightACS_LTEE+t
tee pointing upACS_BTEE+v
upper left cornerACS_ULCORNER+l
upper right cornerACS_URCORNER+k
vertical lineACS_VLINE|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 smacs/rmacs 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.

 

Color Handling

Most color terminals are either `Tektronix-like’ or `HP-like’.
Tektronix-like
terminals have a predefined set of N colors (where N usually 8), and can set
character-cell foreground and background characters 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 colors and pairs specify the maximum numbers of colors
and color-pairs that can be displayed simultaneously.
The op (original
pair) string resets foreground and background colors to their default values
for the terminal.
The oc 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 current background color rather
than the power-up default background; these should have the boolean capability
bce.

To change the current foreground or background color on a Tektronix-type
terminal, use setaf (set ANSI foreground) and setab (set ANSI
background) or setf (set foreground) and setb (set background).
These take one parameter, the color number.
The SVr4 documentation describes
only setaf/setab; the XPG4 draft says that "If the terminal
supports ANSI escape sequences to set background and foreground, they should
be coded as setaf and setab, respectively.
If the terminal
supports other escape sequences to set background and foreground, they should
be coded as setf and setb, respectively.
The vidputs()
function and the refresh functions use setaf and setab if they are
defined."

The setaf/setab and setf/setb capabilities take a
single numeric argument each.
Argument values 0-7 of setaf/setab are portably defined as
follows (the middle column is the symbolic #define available in the header for
the curses or ncurses libraries).
The terminal hardware is free to
map these as it likes, but the RGB values indicate normal locations in color
space.











Color#defineValueRGB
blackCOLOR_BLACK0    0, 0, 0
redCOLOR_RED 1    max,0,0
greenCOLOR_GREEN2    0,max,0
yellowCOLOR_YELLOW3    max,max,0
blueCOLOR_BLUE4    0,0,max
magentaCOLOR_MAGENTA5    max,0,max
cyanCOLOR_CYAN6    0,max,max
whiteCOLOR_WHITE7    max,max,max

The argument values of setf/setb historically correspond to
a different mapping, i.e.,











Color#defineValueRGB
blackCOLOR_BLACK0    0, 0, 0
blueCOLOR_BLUE1    0,0,max
greenCOLOR_GREEN2    0,max,0
cyanCOLOR_CYAN3    0,max,max
redCOLOR_RED 4    max,0,0
magentaCOLOR_MAGENTA5    max,0,max
yellowCOLOR_YELLOW6    max,max,0
whiteCOLOR_WHITE7    max,max,max

It is important to not confuse the two sets of color capabilities;
otherwise red/blue will be interchanged on the display.

On an HP-like terminal, use scp with a color-pair number parameter to set
which color pair is current.

On a Tektronix-like terminal, the capability ccc may be present to
indicate that colors can be modified.
If so, the initc capability will
take a color number (0 to colors – 1)and three more parameters which
describe the color.
These three parameters default to being interpreted as RGB
(Red, Green, Blue) values.
If the boolean capability hls is present,
they are instead as HLS (Hue, Lightness, Saturation) indices.
The ranges are
terminal-dependent.

On an HP-like terminal, initp may give a capability for changing a
color-pair value.
It will take seven parameters; a color-pair number (0 to
max_pairs – 1), and two triples describing first background and then
foreground colors.
These parameters must be (Red, Green, Blue) or
(Hue, Lightness, Saturation) depending on hls.

On some color terminals, colors collide with highlights.
You can register
these collisions with the ncv capability.
This is a bit-mask of
attributes not to be used when colors are enabled.
The correspondence with the
attributes understood by curses is as follows:












AttributeBitDecimal
A_STANDOUT01
A_UNDERLINE12
A_REVERSE24
A_BLINK38
A_DIM416
A_BOLD532
A_INVIS664
A_PROTECT7128
A_ALTCHARSET8256

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 ncv capability of 2.

SVr4 curses does nothing with ncv, ncurses recognizes it and optimizes
the output in favor of colors.

 

Miscellaneous

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 PC variable;
though the application may set this value to something other than
a null, ncurses will test npc 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
hu

(half-line up)
and
hd

(half-line down).
This is primarily useful for superscripts and subscripts on hard-copy terminals.
If a hard-copy terminal can eject to the next page (form feed), give this as
ff

(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 characters)
this can be indicated with the parameterized string
rep.

The first parameter is the character to be repeated and the second
is the number of times to repeat it.
Thus, tparm(repeat_char, ‘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
cmdch.

A prototype command character is chosen which is used in all capabilities.
This character is given in the
cmdch

capability to identify it.
The following convention is supported on some UNIX systems:
The environment is to be searched for a
CC

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
gn

(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
km.

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
smm

and
rmm.

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
lm.

A value of
lm#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
vt.

Media copy
strings which control an auxiliary printer connected to the terminal
can be given as
mc0:

print the contents of the screen,
mc4:

turn off the printer, and
mc5:

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
mc5p

takes one parameter, and leaves the printer on for as many characters
as the value of the parameter, then turns the printer off.
The parameter should not exceed 255.
All text, including
mc4,

is transparently passed to the printer while an
mc5p

is in effect.

 

Glitches and Braindamage

Hazeltine terminals, which do not allow `~’ characters to be displayed should
indicate hz.

Terminals which ignore a line-feed immediately after an am wrap,
such as the Concept and vt100,
should indicate xenl.

If
el

is required to get rid of standout
(instead of merely writing normal text on top of it),
xhp should be given.

Teleray terminals, where tabs turn all characters moved over to blanks,
should indicate xt (destructive tabs).
Note: the variable indicating this is now `dest_tabs_magic_smso'; in
older versions, it was teleray_glitch.
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
xsb,

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
`beehive_glitch'; it is now `no_esc_ctl_c’.

Other specific terminal problems may be corrected by adding more
capabilities of the form xx.

 

Similar Terminals

If there are two very similar terminals, one (the variant) can be defined as
being just like the other (the base) with certain exceptions.
In the
definition of the variant, the string capability use can be given with
the name of the base terminal.
The capabilities given before
use

override those in the base type named by
use.

If there are multiple use capabilities, they are merged in reverse order.
That is, the rightmost use reference is processed first, then the one to
its left, and so forth.
Capabilities given explicitly in the entry override
those brought in by use references.

A capability can be canceled by placing [email protected] to the left of the
use reference that imports it, where xx is the capability.
For example, the entry

       2621-nl, [email protected], [email protected], use=2621,

defines a 2621-nl that does not have the smkx or rmkx 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.

 

Pitfalls of Long Entries

Long terminfo entries are unlikely to be a problem; to date, no entry has even
approached terminfo’s 4096-byte string-table maximum.
Unfortunately, the termcap
translations are much more strictly limited (to 1023 bytes), 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 1024-byte 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, several 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 do not; others truncate the
entries to 1023 bytes.
Some application programs allocate more than
the recommended 1K for the termcap entry; others do not.

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 does not 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 termcap 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 is 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
does not 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 vulnerable; modern telnets
pass along values like the terminal type automatically.
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 is 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 is 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 ncurses implementation of
tic(1M) 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.
 

Binary Compatibility

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 capabilities to the string table that (in the
binary format) collide with System V and XSI Curses extensions.
 

EXTENSIONS

Some SVr4 curses implementations, and all previous to SVr4, do not
interpret the %A and %O operators in parameter strings.

SVr4/XPG4 do not specify whether msgr licenses movement while in
an alternate-character-set mode (such modes may, among other things, map
CR and NL to characters that do not trigger local motions).
The ncurses implementation ignores msgr in ALTCHARSET
mode.
This raises the possibility that an XPG4
implementation making the opposite interpretation may need terminfo
entries made for ncurses to have msgr turned off.

The ncurses library handles insert-character and insert-character modes
in a slightly non-standard way to get better update efficiency.
See
the Insert/Delete Character subsection above.

The parameter substitutions for set_clock and display_clock 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 kmous capability.
The ncurses wants to
interpret it as KEY_MOUSE, 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 extension sets.
Here
is a summary, accurate as of October 1995:

SVR4, Solaris, ncurses
These support all SVr4 capabilities.

SGI
Supports the SVr4 set, adds one undocumented extended string
capability (set_pglen).

SVr1, Ultrix
These support a restricted subset of terminfo capabilities.
The booleans
end with xon_xoff; the numerics with width_status_line; and the
strings with prtr_non.

HP/UX
Supports the SVr1 subset, plus the SVr[234] numerics num_labels,
label_height, label_width, plus function keys 11 through 63, plus
plab_norm, label_on, and label_off, plus some incompatible
extensions in the string table.

AIX
Supports the SVr1 subset, plus function keys 11 through 63, plus a number
of incompatible string table extensions.

OSF
Supports both the SVr4 set and the AIX extensions.
 

FILES


/usr/share/terminfo/?/*

files containing terminal descriptions

 

SEE ALSO

tic(1M),
infocmp(1M),
curses(3X),
printf(3),
term(5).
 

AUTHORS

Zeyd M. Ben-Halim, Eric S. Raymond, Thomas E. Dickey.
Based on pcurses by Pavel Curtis.



 

Index



NAME

SYNOPSIS

DESCRIPTION


Capabilities

A Sample Entry

Types of Capabilities

Fetching Compiled Descriptions

Preparing Descriptions

Basic Capabilities

Parameterized Strings

Cursor Motions

Area Clears

Insert/delete line and vertical motions

Insert/Delete Character

Highlighting, Underlining, and Visible Bells

Keypad and Function Keys

Tabs and Initialization

Delays and Padding

Status Lines

Line Graphics

Color Handling

Miscellaneous

Glitches and Braindamage

Similar Terminals

Pitfalls of Long Entries

Binary Compatibility


EXTENSIONS

FILES

SEE ALSO

AUTHORS



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