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terminfo(4)							   terminfo(4)

NAME
       terminfo - printer, terminal, and modem capability database

SYNOPSIS
       /usr/lib/terminfo/?/*

DESCRIPTION
       The requirements in this manpage are in effect only for implementations
       that claim Enhanced Curses compliance.

   List of Section Headings in DESCRIPTION
   Terminfo Source Format
       The terminfo database contains a description of the capabilities	 of  a
       variety	of  devices,  such  as	terminals  and	printers.  Devices are
       described by specifying a set of capabilities, by  quantifying  certain
       aspects	of  the	 device,  and  by  specifying character sequences that
       effect particular results.

       This manpage specifies the format of terminfo source files.

       X/Open-compliant implementations must provide a facility	 that  accepts
       source  files  in  the  format  specified in this manpage as a means of
       entering information into the  terminfo	database.   The	 facility  for
       installing  this	 information  into the database is implementation-spe‐
       cific.  A valid terminfo entry describing a given model of terminal can
       be  added  to terminfo on any X/Open-compliant implementation to permit
       use of the same terminal model.

       The section describes the syntax of terminfo source files.   A  grammar
       and  lexical  conventions  appear  in the section below.	 A list of all
       terminal capabilities defined by X/Open appears in the  section	below.
       An  example  follows  in	 the section below.  The section describes the
       specification of devices in general, such as video terminals.  The sec‐
       tion describes the specification of printers.

       The  terminfo  database	is  often used by screen-oriented applications
       such as vi and Curses programs, as well as by some utilities such as ls
       and  more.   This  usage	 allows them to work with a variety of devices
       without changes to the programs.

   Source File Syntax
       Source files can use the ISO 8859-1 codeset.   The  behavior  when  the
       source file is in another codeset is unspecified.  Traditional practice
       has been to translate information from other codesets into  the	source
       file syntax.

       terminfo source files consist of one or more device descriptions.  Each
       description defines a mnemonic  name  for  the  terminal	 model.	  Each
       description  consists  of  a  header (beginning in column 1) and one or
       more lines that list the features for that  particular  device.	 Every
       line  in	 a  terminfo source file must end in a comma.  Every line in a
       terminfo source file except the header must be  indented	 with  one  or
       more white spaces (either spaces or tabs).

       Entries in terminfo source files consist of a number of comma-separated
       fields.	White space after each comma is ignored.  Embedded commas must
       be  escaped by using a backslash.  The following example shows the for‐
       mat of a terminfo source file:

	      alias1 | alias2 | ... | aliasn | longname,
	      whitespaceam, lines #24,
	      whitespacehome=\Eeh,

       The first line, commonly referred to as the header line, must begin  in
       column  one and must contain at least two aliases separated by vertical
       bars.  The last field in the header line must be the long name  of  the
       device and it may contain any string.

       Alias  names must be unique in the terminfo database and they must con‐
       form to file naming conventions established by  implementation-specific
       terminfo	 compilation  utilities.  Implementations will recognize alias
       names consisting only of characters from the portable file name charac‐
       ter  set	 except that implementations need not accept a first character
       of minus (-).  For example, a typical restriction is that  they	cannot
       contain	white  space  or  slashes.   There  may be further constraints
       imposed on source file values by the  implementation-specific  terminfo
       compilation utilities.

       Each capability in terminfo is of one of the following types:

	      ·	 Boolean  capabilities show that a device has or does not have
		 a particular feature.

	      ·	 Numeric  capabilities	quantify  particular  features	of   a
		 device.

	      ·	 String	 capabilities  provide	sequences  that can be used to
		 perform particular operations on devices.

       Capability names adhere to an informal length limit of five characters.
       Whenever	 possible,  capability	names  are chosen to be the same as or
       similar to those specified by the ANSI X3.64-1979 standard.   Semantics
       are also intended to match those of the ANSI standard.

       All  string capabilities may have padding specified, with the exception
       of those used for input.	 Input capabilities, listed under the  Strings
       section in the following tables, have names beginning with key_.	 These
       capabilities are defined in <term.h>.

   Minimum Guaranteed Limits
       All X/Open-compliant implementations support  at	 least	the  following
       limits for the terminfo source file:

       Source File Characteristic			 Minimum    Guaranteed
							 Value
       ────────────────────────────────────────────────────────────────────────
       Length of a line					 1023 bytes
       Length of a terminal alias			 14 bytes
       Length of a terminal model name			 128 bytes
       Width of a single field				 128 bytes
       Length of a string value				 1000 bytes
       Length of a string representing a numeric value	 99 digits
       Magnitude of a numeric value			 0 to 32767 inclusive
       ────────────────────────────────────────────────────────────────────────

       An implementation may support higher limits than those specified above.

   Formal Grammar
       The grammar and lexical conventions in this section  together  describe
       the  syntax for terminfo terminal descriptions within a terminfo source
       file.  A terminal description that satisfies the requirements  of  this
       section	will  be accepted by all implementations.  (The notation "(n)"
       refers to a note following the description.)

       descriptions : START_OF_HEADER_LINE(1) rest_of_header_line feature_lines
		 | descriptions START_OF_HEADER_LINE rest_of_header_line
		 | feature_lines
		 ;

       rest_of_header_line : PIPE LONGNAME COMMA NEWLINE
		 | aliases PIPE LONGNAME COMMA NEWLINE
		 ;

       feature_lines : start_feature_line rest_of_feature_line
		 | feature_lines start_feature_line rest_of_feature_line
		 ;

       start_feature_line : START_FEATURE_LINE_BOOLEAN(2)
		 | START_FEATURE_LINE_NUMERIC(3)
		 | START_FEATURE_LINE_STRING(4)
		 ;

       rest_of_feature_line : features COMMA NEWLINE
		 | COMMA NEWLINE
		 ;

       features : COMMA feature
		 | features COMMA feature
		 ;

       aliases : PIPE ALIAS
		 | aliases PIPE ALIAS
		 ;

       feature : BOOLEAN
		 | NUMERIC
		 | STRING
		 ;

       Note (1)	 An ALIAS that begins in column one.  This is handled  by  the
		 lexical analyzer.

       Note (2)	 A  BOOLEAN  feature  that  begins after column one but is the
		 first feature on the feature line.  This is  handled  by  the
		 lexical analyzer.

       Note (3)	 A  NUMERIC  feature  that  begins after column one but is the
		 first feature on the feature line.  This is  handled  by  the
		 lexical analyzer.

       Note (4)	 A  STRING  feature  that  begins  after column one but is the
		 first feature on the feature line.  This is  handled  by  the
		 lexical analyzer.

       The lexical conventions for terminfo descriptions are as follows:

	       1.    White space consists of the <space> and <tab> characters.

	       2.    An	 ALIAS	may  contain  any  graph characters other than
		     comma (,), slash (/), and bar (|).	 (Graph characters are
		     those characters for which isgraph() returns nonzero; see
		     ctype(3C).)

	       3.    A LONGNAME may contain any print  characters  other  than
		     comma (,) and bar (|).  (Print characters are those char‐
		     acters  for  which	  isprint()   returns	nonzero;   see
		     ctype(3C).)

	       4.    A	BOOLEAN feature may contain any print characters other
		     than comma (,), equals (=), and pound sign (#).

	       5.    A NUMERIC feature consists of:

		     a.	    A name which may contain any print character other
			    than comma (,), equals (=), and pound sign (#).

		     b.	    The pound sign (#) character.

		     c.	    A  positive	 integer  which conforms to the C lan‐
			    guage convention for integer constants.

	       6.    A STRING feature consists of:

		     a.	    A name which may contain any print character other
			    than comma (,), equals (=), and pound sign (#).

		     b.	    The equals (=) character.

		     c.	    A  string  which  may contain any print characters
			    other than comma (,).

	       7.    White space immediately following a comma (,) is ignored.

	       8.    Comments consist of the beginning	of  a  line,  optional
		     white space, a required pound sign (#), and a terminating
		     end of line.

	       9.    A header line must begin in column one.

	      10.    A feature line must not begin in column one.

	      11.    Blank lines are ignored.

   Defined Capabilities
       X/Open defines the capabilities listed in the  following	 tables.   All
       X/Open-compliant implementations must accept each of these capabilities
       in an entry in a terminfo source file.  Implementations use this infor‐
       mation  to  determine how properly to operate the current terminal.  In
       addition, implementations return any of the current terminal's capabil‐
       ities  when  the	 application  calls the query functions listed in tge‐
       tent() (in the cases where the following tables list  a	Termcap	 code)
       and tigetflag() (see tgetent(3X) and tigetflag(3X)).

       The tables of capabilities have the following columns:

       Variable	      Names  for  use  by the Curses functions that operate on
		      the terminfo database.  These names are reserved and the
		      application must not define them.

       Capname	      The  short  name	for a capability specified in the ter‐
		      minfo source file.  It is used for updating  the	source
		      file and by the tput command (see tput(1)).

       Termcap	      Codes  provided  for  compatibility  with older applica‐
		      tions.  These codes are TO  BE  WITHDRAWN.   Because  of
		      this, not all Capnames have Termcap codes.

       Description    A short summary of the capability.

       Booleans

			 Cap   Term
Variable		 name  cap  Description
───────────────────────────────────────────────────────────────────────────────
auto_left_margin	 bw    bw   cub1 wraps from column 0 to last column
auto_right_margin	 am    am   Terminal has automatic margins
back_color_erase	 bce   ut   Screen erased with background color
can_change		 ccc   cc   Terminal can re-define existing color
ceol_standout_glitch	 xhp   xs   Standout not erased by overwriting (hp)
col_addr_glitch		 xhpa  YA   Only positive motion for hpa/mhpa caps
cpi_changes_res		 cpix  YF   Changing  character	 pitch changes resolu‐
				    tion
cr_cancels_micro_mode	 crxm  YB   Using cr turns off micro mode
dest_tabs_magic_smso	 xt    xt   Destructive tabs, magic smso char (t1061)
eat_newline_glitch	 xenl  xn   Newline ignored after 80 columns (Concept)
erase_overstrike	 eo    eo   Can erase overstrikes with a blank
generic_type		 gn    gn   Generic line type (e.g., dialup, switch)
get_mouse		 getm  Gm   Curses should get button events
hard_copy		 hc    hc   Hardcopy terminal
hard_cursor		 chts  HC   Cursor is hard to see
has_meta_key		 km    km   Has a meta key (shift, sets parity bit)
has_print_wheel		 daisy YC   Printer needs operator to change character
				    set
has_status_line		 hs    hs   Has extra "status line"
hue_lightness_saturation hls   hl   Terminal  uses  only  HLS  color  notation
				    (Tektronix)
insert_null_glitch	 in    in   Insert mode distinguishes nulls
lpi_changes_res		 lpix  YG   Changing line pitch changes resolution
memory_above		 da    da   Display may be retained above the screen
memory_below		 db    db   Display may be retained below the screen
move_insert_mode	 mir   mi   Safe to move while in insert mode
move_standout_mode	 msgr  ms   Safe to move in standout modes
needs_xon_xoff		 nxon  nx   Padding won't work, XON/XOFF required
no_esc_ctlc		 xsb   xb   Beehive (f1=escape, f2=ctrl C)
no_pad_char		 npc   NP   Pad character doesn't exist
non_dest_scroll_region	 ndscr ND   Scrolling region is nondestructive
non_rev_rmcup		 nrrmc NR   smcup does not reverse rmcup
over_strike		 os    os   Terminal overstrikes on hard-copy terminal
prtr_silent		 mc5i  5i   Printer won't echo on screen
row_addr_glitch		 xvpa  YD   Only positive motion for vpa/mvpa caps
semi_auto_right_margin	 sam   YE   Printing in last column causes cr
status_line_esc_ok	 eslok es   Escape can be used on the status line
tilde_glitch		 hz    hz   Hazeltine; can't print tilde (~)
transparent_underline	 ul    ul   Underline character overstrikes

xon_xoff		 xon   xo   Terminal uses XON/XOFF handshaking
───────────────────────────────────────────────────────────────────────────────

       Numbers

		     Cap    Term

Variable	     name   cap	 Description
───────────────────────────────────────────────────────────────────────────────
bit_image_entwining  bitwin Yo	 Number of passes for each bit-map row

bit_image_type	     bitype Yp	 Type of bit image device

buffer_capacity	     bufsz  Ya	 Number of bytes buffered before printing

buttons		     btns   BT	 Number of buttons on the mouse

columns		     cols   co	 Number of columns in a line

dot_horz_spacing     spinh  Yc	 Spacing of dots horizontally in dots per inch

dot_vert_spacing     spinv  Yb	 Spacing of pins vertically in pins per inch

init_tabs	     it	    it	 Tabs initially every # spaces

label_height	     lh	    lh	 Number of rows in each label

label_width	     lw	    lw	 Number of columns in each label

lines		     lines  li	 Number of lines on a screen or a page

lines_of_memory	     lm	    lm	 Lines of memory  if  greater  than  lines;  0
				 means varies

max_attributes	     ma	    ma	 Maximum  combined  video  attributes terminal
				 can display

magic_cookie_glitch  xmc    sg	 Number of blank characters left  by  smso  or
				 rmso
max_colors	     colors Co	 Maximum number of colors on the screen

max_micro_address    maddr  Yd	 Maximum value in micro_..._address

max_micro_jump	     mjump  Ye	 Maximum value in parm_..._micro

max_pairs	     pairs  pa	 Maximum number of color-pairs on the screen

maximum_windows	     wnum   MW	 Maximum number of definable windows

micro_col_size	     mcs    Yf	 Character step size when in micro mode

micro_line_size	     mls    Yg	 Line step size when in micro mode

no_color_video	     ncv    NC	 Video attributes that can't be used with col‐
				 ors
num_labels	     nlab   Nl	 Number of labels on screen (start at 1)

number_of_pins	     npins  Yh	 Number of pins in print-head

output_res_char	     orc    Yi	 Horizontal resolution in units per character

output_res_line	     orl    Yj	 Vertical resolution in units per line

output_res_horz_inch orhi   Yk	 Horizontal resolution in units per inch

output_res_vert_inch orvi   Yl	 Vertical resolution in units per inch

padding_baud_rate    pb	    pb	 Lowest baud rate where padding needed

print_rate	     cps    Ym	 Print rate in characters per second

virtual_terminal     vt	    vt	 Virtual terminal number

wide_char_size	     widcs  Yn	 Character step size when in double-wide mode

width_status_line    wsl    ws	 Number of columns in status line
───────────────────────────────────────────────────────────────────────────────
       Strings (part 1 of 3)
			  Cap	  Term
Variable		  name	  cap  Description
───────────────────────────────────────────────────────────────────────────────
acs_chars		  acsc	  ac   Graphic charset pairs aAbBcC
alt_scancode_esc	  scesa	  S8   Alternate escape for scancode emulation
				       (default is for VT100)
back_tab		  cbt	  bt   Back tab
bell			  bel	  bl   Audible signal (bell)
bit_image_carriage_return bicr	  Yv   Move to beginning of same row
bit_image_newline	  binel	  Zz   Move to next row of the bit image
bit_image_repeat	  birep	  Xy   Repeat bit-image cell #1 #2 times
carriage_return		  cr	  cr   Carriage return
change_char_pitch	  cpi	  ZA   Change number of characters per inch
change_line_pitch	  lpi	  ZB   Change number of lines per inch
change_res_horz		  chr	  ZC   Change horizontal resolution
change_res_vert		  cvr	  ZD   Change vertical resolution
change_scroll_region	  csr	  cs   Change to lines #1 through #2 (VT100)
char_padding		  rmp	  rP   Like ip but when in replace mode
char_set_names		  csnm	  Zy   Returns a list of character set names
clear_all_tabs		  tbc	  ct   Clear all tab stops
clear_margins		  mgc	  MC   Clear  all  margins  (top,  bottom, and
				       sides)
clear_screen		  clear	  cl   Clear screen and home cursor
clr_bol			  el1	  cb   Clear to beginning of line, inclusive
clr_eol			  el	  ce   Clear to end of line
clr_eos			  ed	  cd   Clear to end of display
code_set_init		  csin	  ci   Init sequence for multiple codesets
color_names		  colornm Yw   Give name for color #1
column_address		  hpa	  ch   Set horizontal position to absolute #1
command_character	  cmdch	  CC   Terminal settable cmd character in pro‐
				       totype
create_window		  cwin	  CW   Define win #1 to go from #2,#3 to #4,#5
cursor_address		  cup	  cm   Move to row #1 col #2
cursor_down		  cud1	  do   Down one line
cursor_home		  home	  ho   Home cursor (if no cup)
cursor_invisible	  civis	  vi   Make cursor invisible
cursor_left		  cub1	  le   Move left one space.
cursor_mem_address	  mrcup	  CM   Memory relative cursor addressing
cursor_normal		  cnorm	  ve   Make cursor appear normal (undo vs/vi)
cursor_right		  cuf1	  nd   Nondestructive  space  (cursor  or car‐
				       riage right)
cursor_to_ll		  ll	  ll   Last line, first column (if no cup)
cursor_up		  cuu1	  up   Upline (cursor up)
cursor_visible		  cvvis	  vs   Make cursor very visible
define_bit_image_region	  defbi	  Yx   Define rectangular bit-image region
define_char		  defc	  ZE   Define a character in a character set
delete_character	  dch1	  dc   Delete character
delete_line		  dl1	  dl   Delete line
device_type		  devt	  dv   Indicate language/codeset support
dial_phone		  dial	  DI   Dial phone number #1
dis_status_line		  dsl	  ds   Disable status line
display_clock		  dclk	  DK   Display time-of-day clock
display_pc_char		  dispc	  S1   Display PC character
down_half_line		  hd	  hd   Half-line down (forward 1/2 line feed)
ena_acs			  enacs	  eA   Enable alternate character set
end_bit_image_region	  endbi	  Yy   End a bit-image region
enter_alt_charset_mode	  smacs	  as   Start alternate character set
enter_am_mode		  smam	  SA   Turn on automatic margins
enter_blink_mode	  blink	  mb   Turn on blinking
enter_bold_mode		  bold	  md   Turn on bold (extra bright) mode
enter_ca_mode		  smcup	  ti   String to begin programs that use cup
enter_delete_mode	  smdc	  dm   Delete mode (enter)
enter_dim_mode		  dim	  mh   Turn on half-bright mode
enter_doublewide_mode	  swidm	  ZF   Enable double wide printing
enter_draft_quality	  sdrfq	  ZG   Set draft quality print
enter_horizontal_hl_mode  ehhlm	       Turn on horizontal highlight mode
enter_insert_mode	  smir	  im   Insert mode (enter)
enter_italics_mode	  sitm	  ZH   Enable italics
enter_left_hl_mode	  elhlm	       Turn on left highlight mode
enter_leftward_mode	  slm	  ZI   Enable leftward carriage motion
enter_low_hl_mode	  elohlm       Turn on low highlight mode
enter_micro_mode	  smicm	  ZJ   Enable micro motion capabilities
enter_near_letter_quality snlq	  ZK   Set near-letter quality print
enter_normal_quality	  snrmq	  ZL   Set normal quality print
enter_pc_charset_mode	  smpch	  S2   Enter PC character display mode
enter_protected_mode	  prot	  mp   Turn on protected mode
enter_reverse_mode	  rev	  mr   Turn on reverse video mode
enter_right_hl_mode	  erhlm	       Turn on right highlight mode
enter_scancode_mode	  smsc	  S4   Enter PC scancode mode
enter_secure_mode	  invis	  mk   Turn on blank mode (characters  invisi‐
				       ble)
enter_shadow_mode	  sshm	  ZM   Enable shadow printing
enter_standout_mode	  smso	  so   Begin standout mode
enter_subscript_mode	  ssubm	  ZN   Enable subscript printing
enter_superscript_mode	  ssupm	  ZO   Enable superscript printing
enter_top_hl_mode	  ethlm	       Turn on top highlight mode
enter_underline_mode	  smul	  us   Start underscore mode
enter_upward_mode	  sum	  ZP   Enable upward carriage motion
enter_vertical_hl_mode	  evhlm	       Turn on vertical highlight mode
enter_xon_mode		  smxon	  SX   Turn on XON/XOFF handshaking
erase_chars		  ech	  ec   Erase #1 characters
exit_alt_charset_mode	  rmacs	  ae   End alternate character set
exit_am_mode		  rmam	  RA   Turn off automatic margins
exit_attribute_mode	  sgr0	  me   Turn off all attributes
exit_ca_mode		  rmcup	  te   String to end programs that use cup
exit_delete_mode	  rmdc	  ed   End delete mode
exit_doublewide_mode	  rwidm	  ZQ   Disable double wide printing
exit_insert_mode	  rmir	  ei   End insert mode
exit_italics_mode	  ritm	  ZR   Disable italics
exit_leftward_mode	  rlm	  ZS   Enable	rightward   (normal)  carriage
				       motion
exit_micro_mode		  rmicm	  ZT   Disable micro motion capabilities
exit_pc_charset_mode	  rmpch	  S3   Disable PC character display mode
exit_scancode_mode	  rmsc	  S5   Disable PC scancode mode
exit_shadow_mode	  rshm	  ZU   Disable shadow printing
exit_standout_mode	  rmso	  se   End standout mode
exit_subscript_mode	  rsubm	  ZV   Disable subscript printing
exit_superscript_mode	  rsupm	  ZW   Disable superscript printing
exit_underline_mode	  rmul	  ue   End underscore mode
exit_upward_mode	  rum	  ZX   Enable	downward   (normal)   carriage
				       motion
exit_xon_mode		  rmxon	  RX   Turn off XON/XOFF handshaking
fixed_pause		  pause	  PA   Pause for 2−3 seconds
flash_hook		  hook	  fh   Flash the switch hook
flash_screen		  flash	  vb   Visible bell (may move cursor)
form_feed		  ff	  ff   Hardcopy terminal page eject
from_status_line	  fsl	  fs   Return from status line
goto_window		  wingo	  WG   Go to window #1
hangup			  hup	  HU   Hang-up phone
init_1string		  is1	  i1   Terminal	  or   printer	initialization
				       string
init_2string		  is2	  is   Terminal	 or   printer	initialization
				       string
init_3string		  is3	  i3   Terminal	  or   printer	initialization
				       string
init_file		  if	  if   Name of initialization file
init_prog		  iprog	  iP   Path name of program for initialization
initialize_color	  initc	  IC   Set color #1 to RGB #2, #3, #4
initialize_pair		  initp	  Ip   Set color-pair #1 to  RGB  #2,  #3,  #4
				       (fg) and RGB #5, #6, #7 (bg)
insert_character	  ich1	  ic   Insert character
insert_line		  il1	  al   Add new blank line
insert_padding		  ip	  ip   Insert pad after character inserted
───────────────────────────────────────────────────────────────────────────────

       Strings (part 2 of 3)

       The  "key_" strings are sent by specific keys.  The "key_" descriptions
       include the macro, defined in <curses.h>,  for  the  code  returned  by
       getch() when the key is pressed (see getch(3X)).

			  Cap	Term
Variable		  name	cap  Description
─────────────────────────────────────────────────────────────────────────
key_a1			  ka1	K1   Upper left of keypad
key_a3			  ka3	K3   Upper right of keypad
key_b2			  kb2	K2   Center of keypad
key_backspace		  kbs	kb   Sent by backspace key
key_beg			  kbeg	@1   Sent by beg(inning) key
key_btab		  kcbt	kB   Sent by back-tab key
key_c1			  kc1	K4   Lower left of keypad
key_c3			  kc3	K5   Lower right of keypad
key_cancel		  kcan	@2   Sent by cancel key
key_catab		  ktbc	ka   Sent by clear-all-tabs key
key_clear		  kclr	kC   Sent by clear-screen or erase key
key_close		  kclo	@3   Sent by close key
key_command		  kcmd	@4   Sent by cmd (command) key
key_copy		  kcpy	@5   Sent by copy key
key_create		  kcrt	@6   Sent by create key
key_ctab		  kctab kt   Sent by clear-tab key
key_dc			  kdch1 kD   Sent by delete-character key
key_dl			  kdl1	kL   Sent by delete-line key
key_down		  kcud1 kd   Sent by terminal down-arrow key
key_eic			  krmir kM   Sent by rmir or smir in insert mode

key_end			  kend	@7   Sent by end key
key_enter		  kent	@8   Sent by enter/send key
key_eol			  kel	kE   Sent by clear-to-end-of-line key
key_eos			  ked	kS   Sent by clear-to-end-of-screen key
key_exit		  kext	@9   Sent by exit key
key_f0			  kf0	k0   Sent by function key f0
key_f1			  kf1	k1   Sent by function key f1
key_f2			  kf2	k2   Sent by function key f2
key_f3			  kf3	k3   Sent by function key f3
key_f4			  kf4	k4   Sent by function key f4
key_f5			  kf5	k5   Sent by function key f5
key_f6			  kf6	k6   Sent by function key f6
key_f7			  kf7	k7   Sent by function key f7
key_f8			  kf8	k8   Sent by function key f8
key_f9			  kf9	k9   Sent by function key f9
key_f10			  kf10	k;   Sent by function key f10
key_f11			  kf11	F1   Sent by function key f11
key_f12			  kf12	F2   Sent by function key f12
key_f13			  kf13	F3   Sent by function key f13
key_f14			  kf14	F4   Sent by function key f14
key_f15			  kf15	F5   Sent by function key f15
key_f16			  kf16	F6   Sent by function key f16
key_f17			  kf17	F7   Sent by function key f17
key_f18			  kf18	F8   Sent by function key f18
key_f19			  kf19	F9   Sent by function key f19
key_f20			  kf20	FA   Sent by function key f20
key_f21			  kf21	FB   Sent by function key f21
key_f22			  kf22	FC   Sent by function key f22
key_f23			  kf23	FD   Sent by function key f23
key_f24			  kf24	FE   Sent by function key f24

key_f25			  kf25	FF   Sent by function key f25
key_f26			  kf26	FG   Sent by function key f26
key_f27			  kf27	FH   Sent by function key f27
key_f28			  kf28	FI   Sent by function key f28
key_f29			  kf29	FJ   Sent by function key f29
key_f30			  kf30	FK   Sent by function key f30
key_f31			  kf31	FL   Sent by function key f31
key_f32			  kf32	FM   Sent by function key f32
key_f33			  kf33	FN   Sent by function key f33
key_f34			  kf34	FO   Sent by function key f34
key_f35			  kf35	FP   Sent by function key f35
key_f36			  kf36	FQ   Sent by function key f36
key_f37			  kf37	FR   Sent by function key f37
key_f38			  kf38	FS   Sent by function key f38
key_f39			  kf39	FT   Sent by function key f39
key_f40			  kf40	FU   Sent by function key f40
key_f41			  kf41	FV   Sent by function key f41
key_f42			  kf42	FW   Sent by function key f42
key_f43			  kf43	FX   Sent by function key f43
key_f44			  kf44	FY   Sent by function key f44
key_f45			  kf45	FZ   Sent by function key f45
key_f46			  kf46	Fa   Sent by function key f46
key_f47			  kf47	Fb   Sent by function key f47
key_f48			  kf48	Fc   Sent by function key f48
key_f49			  kf49	Fd   Sent by function key f49
key_f50			  kf50	Fe   Sent by function key f50
key_f51			  kf51	Ff   Sent by function key f51
key_f52			  kf52	Fg   Sent by function key f52
key_f53			  kf53	Fh   Sent by function key f53
key_f54			  kf54	Fi   Sent by function key f54

key_f55			  kf55	Fj   Sent by function key f55
key_f56			  kf56	Fk   Sent by function key f56
key_f57			  kf57	Fl   Sent by function key f57
key_f58			  kf58	Fm   Sent by function key f58
key_f59			  kf59	Fn   Sent by function key f59
key_f60			  kf60	Fo   Sent by function key f60
key_f61			  kf61	Fp   Sent by function key f61
key_f62			  kf62	Fq   Sent by function key f62
key_f63			  kf63	Fr   Sent by function key f63
key_find		  kfnd	@0   Sent by find key
key_help		  khlp	%1   Sent by help key
key_home		  khome kh   Sent by home key
key_ic			  kich1 kI   Sent by ins-char/enter ins-mode key
key_il			  kil1	kA   Sent by insert-line key
key_left		  kcub1 kl   Sent by terminal left-arrow key
key_ll			  kll	kH   Sent by home-down key
key_mark		  kmrk	%2   Sent by mark key
key_message		  kmsg	%3   Sent by message key
key_mouse		  kmous Km   0631, mouse event has occurred
key_move		  kmov	%4   Sent by move key
key_next		  knxt	%5   Sent by next-object key
key_npage		  knp	kN   Sent by next-page key
key_open		  kopn	%6   Sent by open key
key_options		  kopt	%7   Sent by options key
key_ppage		  kpp	kP   Sent by previous-page key
key_previous		  kprv	%8   Sent by previous-object key
key_print		  kprt	%9   Sent by print or copy key
key_redo		  krdo	%0   Sent by redo key
key_reference		  kref	&1   Sent by ref(erence) key
key_refresh		  krfr	&2   Sent by refresh key

key_replace		  krpl	&3   Sent by replace key
key_restart		  krst	&4   Sent by restart key
key_resume		  kres	&5   Sent by resume key
key_right		  kcuf1 kr   Sent by terminal right-arrow key
key_save		  ksav	&6   Sent by save key
key_sbeg		  kBEG	&9   Sent by shifted beginning key
key_scancel		  kCAN	&0   Sent by shifted cancel key
key_scommand		  kCMD	*1   Sent by shifted command key
key_scopy		  kCPY	*2   Sent by shifted copy key
key_screate		  kCRT	*3   Sent by shifted create key
key_sdc			  kDC	*4   Sent by shifted delete-char key
key_sdl			  kDL	*5   Sent by shifted delete-line key
key_select		  kslt	*6   Sent by select key
key_send		  kEND	*7   Sent by shifted end key
key_seol		  kEOL	*8   Sent by shifted clear-line key
key_sexit		  kEXT	*9   Sent by shifted exit key
key_sf			  kind	kF   Sent by scroll-forward/down key
key_sfind		  kFND	*0   Sent by shifted find key
key_shelp		  kHLP	#1   Sent by shifted help key
key_shome		  kHOM	#2   Sent by shifted home key
key_sic			  kIC	#3   Sent by shifted input key
key_sleft		  kLFT	#4   Sent by shifted left-arrow key
key_smessage		  kMSG	%a   Sent by shifted message key
key_smove		  kMOV	%b   Sent by shifted move key
key_snext		  kNXT	%c   Sent by shifted next key
key_soptions		  kOPT	%d   Sent by shifted options key
key_sprevious		  kPRV	%e   Sent by shifted prev key
key_sprint		  kPRT	%f   Sent by shifted print key
key_sr			  kri	kR   Sent by scroll-backward/up key
key_sredo		  kRDO	%g   Sent by shifted redo key

key_sreplace		  kRPL	%h   Sent by shifted replace key
key_sright		  kRIT	%i   Sent by shifted right-arrow key
key_srsume		  kRES	%j   Sent by shifted resume key
key_ssave		  kSAV	!1   Sent by shifted save key
key_ssuspend		  kSPD	!2   Sent by shifted suspend key
key_stab		  khts	kT   Sent by set-tab key
key_sundo		  kUND	!3   Sent by shifted undo key
key_suspend		  kspd	&7   Sent by suspend key
key_undo		  kund	&8   Sent by undo key
key_up			  kcuu1 ku   Sent by terminal up-arrow key
─────────────────────────────────────────────────────────────────────────

       Strings (part 3 of 3)

		       Cap	Term
Variable	       name	cap  Description
───────────────────────────────────────────────────────────────────────────────
keypad_local	       rmkx	ke   Out of "keypad-transmit" mode
keypad_xmit	       smkx	ks   Put terminal in "keypad-transmit" mode
lab_f0		       lf0	l0   Labels on function key f0 if not f0
lab_f1		       lf1	l1   Labels on function key f1 if not f1
lab_f2		       lf2	l2   Labels on function key f2 if not f2
lab_f3		       lf3	l3   Labels on function key f3 if not f3
lab_f4		       lf4	l4   Labels on function key f4 if not f4
lab_f5		       lf5	l5   Labels on function key f5 if not f5
lab_f6		       lf6	l6   Labels on function key f6 if not f6
lab_f7		       lf7	l7   Labels on function key f7 if not f7
lab_f8		       lf8	l8   Labels on function key f8 if not f8
lab_f9		       lf9	l9   Labels on function key f9 if not f9
lab_f10		       lf10	la   Labels on function key f10 if not f10
label_format	       fln	Lf   Label format
label_off	       rmln	LF   Turn off soft labels
label_on	       smln	LO   Turn on soft labels
memory_lock	       meml	ml   Lock memory above cursor
memory_unlock	       memu	mu   Turn memory lock off
meta_off	       rmm	mo   Turn off "meta mode"
meta_on		       smm	mm   Turn on "meta mode" (8th bit)
micro_column_address   mhpa	ZY   Like column_address for micro adjustment
micro_down	       mcud1	ZZ   Like cursor_down for micro adjustment
micro_left	       mcub1	Za   Like cursor_left for micro adjustment
micro_right	       mcuf1	Zb   Like cursor_right for micro adjustment

micro_row_address      mvpa	Zc   Like row_address for micro adjustment
micro_up	       mcuu1	Zd   Like cursor_up for micro adjustment
mouse_info	       minfo	Mi   Mouse status information
newline		       nel	nw   Newline (behaves like cr followed by lf)
order_of_pins	       porder	Ze   Matches software bits to print-head pins
orig_colors	       oc	oc   Set  all  color(-pair)s  to  the original
				     ones
orig_pair	       op	op   Set default color-pair  to	 the  original
				     one
pad_char	       pad	pc   Pad character (rather than null)
parm_dch	       dch	DC   Delete #1 chars
parm_delete_line       dl	DL   Delete #1 lines
parm_down_cursor       cud	DO   Move down #1 lines.
parm_down_micro	       mcud	Zf   Like parm_down_cursor for micro adjust.
parm_ich	       ich	IC   Insert #1 blank chars
parm_index	       indn	SF   Scroll forward #1 lines.
parm_insert_line       il	AL   Add #1 new blank lines
parm_left_cursor       cub	LE   Move cursor left #1 spaces
parm_left_micro	       mcub	Zg   Like parm_left_cursor for micro adjust.
parm_right_cursor      cuf	RI   Move right #1 spaces.
parm_right_micro       mcuf	Zh   Like parm_right_cursor for micro adjust.
parm_rindex	       rin	SR   Scroll backward #1 lines.
parm_up_cursor	       cuu	UP   Move cursor up #1 lines.
parm_up_micro	       mcuu	Zi   Like parm_up_cursor for micro adjust.
pc_term_options	       pctrm	S6   PC terminal options
pkey_key	       pfkey	pk   Prog funct key #1 to type string #2
pkey_local	       pfloc	pl   Prog funct key #1 to execute string #2
pkey_plab	       pfxl	xl   Prog  key	#1  to xmit string #2 and show
				     string #3
pkey_xmit	       pfx	px   Prog funct key #1 to xmit string #2
plab_norm	       pln	pn   Prog label #1 to show string #2
print_screen	       mc0	ps   Print contents of the screen
prtr_non	       mc5p	pO   Turn on the printer for #1 bytes
prtr_off	       mc4	pf   Turn off the printer
prtr_on		       mc5	po   Turn on the printer
pulse		       pulse	PU   Select pulse dialing
quick_dial	       qdial	QD   Dial phone number	#1,  without  progress
				     detection
remove_clock	       rmclk	RC   Remove time-of-day clock
repeat_char	       rep	rp   Repeat char #1 #2 times
req_for_input	       rfi	RF   Send next input char (for ptys)

req_mouse_pos	       reqmp	RQ   Request mouse position report
reset_1string	       rs1	r1   Reset terminal completely to sane modes
reset_2string	       rs2	r2   Reset terminal completely to sane modes
reset_3string	       rs3	r3   Reset terminal completely to sane modes
reset_file	       rf	rf   Name of file containing reset string
restore_cursor	       rc	rc   Restore cursor to position of last sc
row_address	       vpa	cv   Set vertical position to absolute #1
save_cursor	       sc	sc   Save cursor position
scancode_escape	       scesc	S7   Escape for scancode emulation
scroll_forward	       ind	sf   Scroll text up
scroll_reverse	       ri	sr   Scroll text down
select_char_set	       scs	Zj   Select character set
set0_des_seq	       s0ds	s0   Shift into codeset 0 (EUC set 0, ASCII)
set1_des_seq	       s1ds	s1   Shift into codeset 1
set2_des_seq	       s2ds	s2   Shift into codeset 2
set3_des_seq	       s3ds	s3   Shift into codeset 3
set_a_attributes       sgr1	     Define  second  set  of  video attributes
				     #1−#6
set_a_background       setab	AB   Set background color  to  #1  using  ANSI
				     escape
set_a_foreground       setaf	AF   Set  foreground  color  to	 #1 using ANSI
				     escape
set_attributes	       sgr	sa   Define  first  set	 of  video  attributes
				     #1−#9
set_background	       setb	Sb   Set background color to #1
set_bottom_margin      smgb	Zk   Set bottom margin at current line
set_bottom_margin_parm smgbp	Zl   Set  bottom margin at line #1 or #2 lines
				     from bottom
set_clock	       sclk	SC   Set clock to hours	 (#1),	minutes	 (#2),
				     seconds (#3)
set_color_band	       setcolor Yz   Change to ribbon color #1
set_color_pair	       scp	sp   Set current color pair to #1
set_foreground	       setf	Sf   Set foreground color to #1
set_left_margin	       smgl	ML   Set left margin at current column
set_left_margin_parm   smglp	Zm   Set left (right) margin at column #1 (#2)
set_lr_margin	       smglr	ML   Sets both left and right margins
set_page_length	       slines	YZ   Set page length to #1 lines
set_pglen_inch	       slength	YI   Set  page	length	to  #1 hundredth of an
				     inch
set_right_margin       smgr	MR   Set right margin at current column
set_right_margin_parm  smgrp	Zn   Set right margin at column #1

set_tab		       hts	st   Set a tab in all rows, current column
set_tb_margin	       smgtb	MT   Sets both top and bottom margins
set_top_margin	       smgt	Zo   Set top margin at current line
set_top_margin_parm    smgtp	Zp   Set top (bottom) margin at line #1 (#2)
set_window	       wind	wi   Current window is lines #1−#2 cols #3−#4
start_bit_image	       sbim	Zq   Start printing bit image graphics
start_char_set_def     scsd	Zr   Start definition of a character set
stop_bit_image	       rbim	Zs   End printing bit image graphics
stop_char_set_def      rcsd	Zt   End definition of a character set
subscript_characters   subcs	Zu   List of "subscript-able" characters
superscript_characters supcs	Zv   List of "superscript-able" characters
tab		       ht	ta   Tab to next 8-space hardware tab stop
these_cause_cr	       docr	Zw   Printing any of these chars causes cr
to_status_line	       tsl	ts   Go to status line, col #1
tone		       tone	TO   Select touch tone dialing
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
underline_char	       uc	uc   Underscore one char and move past it
up_half_line	       hu	hu   Half-line up (reverse 1/2 line feed)
wait_tone	       wait	WA   Wait for dial tone
xoff_character	       xoffc	XF   XOFF character
xon_character	       xonc	XN   XON character
zero_motion	       zerom	Zx   No motion for the subsequent character
───────────────────────────────────────────────────────────────────────────────

   Sample Entry
       The following entry describes the AT&T 610 terminal.  (The pfxl and sgr
       values  have been split for printing; they would actually be entered as
       single lines.)

       610|610bct|ATT610|att610|AT&T610;80column;98key keyboard,
	       am, eslok, hs, mir, msgr, xenl, xon,
	       cols#80, it#8, lh#2, lines#24, lw#8, nlab#8, wsl#80,
	       acsc=``aaffggjjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~,
	       bel=^G, blink=\E[5m, bold=\E[1m, cbt=\E[Z,
	       civis=\E[?25l, clear=\E[H\E[J, cnorm=\E[?25h\E[?12l,
	       cr=\r, csr=\E[%i%p1%d;%p2%dr, cub=\E[%p1%dD, cub1=\b,
	       cud=\E[%p1%dB, cud1=\E[B, cuf=\E[%p1%dC, cuf1=\E[C,
	       cup=\E[%i%p1%d;%p2%dH, cuu=\E[%p1%dA, cuu1=\E[A,
	       cvvis=\E[?12;25h, dch=\E[%p1%dP, dch1=\E[P, dim=\E[2m,
	       dl=\E[%p1%dM, dl1=\E[M, ed=\E[J, el=\E[K, el1=\E[1K,
	       flash=\E[?5h$<200>\E[?5l, fsl=\E8, home=\E[H, ht=\t,
	       ich=\E[%p1%d@, il=\E[%p1%dL, il1=\E[L, ind=\ED, .ind=\ED$<9>,
	       invis=\E[8m,
	       is1=\E[8;0 | \E[?3;4;5;13;15l\E[13;20l\E[?7h\E[12h\E(B\E)0,
	       is2=\E[0m^O, is3=\E(B\E)0, kLFT=\E[\s@, kRIT=\E[\sA,
	       kbs=^H, kcbt=\E[Z, kclr=\E[2J, kcub1=\E[D, kcud1=\E[B,
	       kcuf1=\E[C, kcuu1=\E[A, kfP=\EOc, kfP0=\ENp,
	       kfP1=\ENq, kfP2=\ENr, kfP3=\ENs, kfP4=\ENt, kfI=\EOd,
	       kfB=\EOe, kf4=\EOf, kf(CW=\EOg, kf6=\EOh, kf7=\EOi,
	       kf8=\EOj, kf9=\ENo, khome=\E[H, kind=\E[S, kri=\E[T,
	       ll=\E[24H, mc4=\E[?4i, mc5=\E[?5i, nel=\EE,
	       pfxl=\E[%p1%d;%p2%l%02dq%?%p1%{9}%<%t\s\s\sF%p1%1d
       \s\s\s\s\s\s\s\s\s\s\s%;%p2%s,
	       pln=\E[%p1%d;0;0;0q%p2%:-16.16s, rc=\E8, rev=\E[7m,
	       ri=\EM, rmacs=^O, rmir=\E[4l, rmln=\E[2p, rmso=\E[m,
	       rmul=\E[m, rs2=\Ec\E[?3l, sc=\E7,
	       sgr=\E[0%?%p6%t;1%;%?%p5%t;2%;%?%p2%t;4%;%?%p4%t;5%;%?%p3%p1%
       |%t;7%;%?%p7%t;8%;m%?%p9%t^N%e^O%;,
	       sgr0=\E[m^O, smacs=^N, smir=\E[4h, smln=\E[p,
	       smso=\E[7m, smul=\E[4m, tsl=\E7\E[25;%i%p1%dx,

   Types of Capabilities in the Sample Entry
       The sample entry shows the formats for  the  three  types  of  terminfo
       capabilities: boolean, numeric, and string.  All capabilities specified
       in the terminfo source file must be followed by commas,	including  the
       last capability in the source file.  In terminfo source files, capabil‐
       ities are referenced by their capability names (as shown in the Capname
       column  of  the	previous tables).  A boolean capability is true if its
       Capname is present in the entry,	 and  false  if	 its  Capname  is  not
       present in the entry.

       The  "@"	 character  following  a Capname is used to explicitly declare
       that a boolean capability is false, in situations described in the sub‐
       section of the section below.  Numeric capabilities are followed by the
       character "#" and then a positive integer value.	 The  example  assigns
       the value 80 to the cols numeric capability by coding:

	      cols#80

       Values  for  numeric capabilities may be specified in decimal, octal or
       hexadecimal, using normal C-language conventions.  String-valued	 capa‐
       bilities	 such  as el (clear to end of line sequence) are listed by the
       an "=", and a string ended by the next occurrence of a comma.

       A delay in milliseconds may appear anywhere in such a capability,  pre‐
       ceded  by  "$"  and  enclosed in angle brackets, as in el=\EK$<3>.  The
       Curses implementation achieves delays by outputting to the terminal  an
       appropriate  number  of system-defined padding characters.  The tputs()
       function provides delays when used to send such	a  capability  to  the
       terminal.

       The  delay  can be any of the following: a number; a number followed by
       an asterisk, such as 5*; a number followed by a slash, such as 5/; or a
       number followed by both, such as 5*/.

	      *	 Shows	that  the required delay is proportional to the number
		 of lines affected by the operation, and the amount  given  is
		 the delay required per affected unit.	(In the case of insert
		 characters, the factor is still the number of lines affected.
		 This  is  always  1 unless the device has in and the software
		 uses it.)  When a "*" is specified, it is sometimes useful to
		 give  a  delay of the form 3.5 to specify a delay per unit to
		 tenths of milliseconds.  (Only one decimal place is allowed.)

	      /	 Indicates that the delay is mandatory and padding  characters
		 are  transmitted regardless of the setting of xon.  If "/" is
		 not specified or if a	device	has  xon  defined,  the	 delay
		 information  is  advisory and is only used for cost estimates
		 or when the device is in raw mode.  However, any delay speci‐
		 fied for bel or flash is treated as mandatory.

       The following notation is valid in terminfo source files for specifying
       special characters:

	      Notation	 Represents Character
	      ──────────────────────────────────────────────────────────
	      ^x	 Control-x (for any appropriate x)
	      \a	 Alert
	      \b	 Backspace
	      \E or \e	 An ESCAPE character
	      \f	 Form feed
	      \l	 Linefeed
	      \n	 Newline
	      \r	 Carriage return
	      \s	 Space
	      \t	 Tab
	      \^	 Caret (^)
	      \\	 Backslash (\)
	      \,	 Comma (,)
	      \:	 Colon (:)
	      \0	 Null
	      \nnn	 Any character, specified as three octal digits
	      ──────────────────────────────────────────────────────────

       (See the "X/Open System Interface  Definitions,	Issue  4,  Version  2"
       specification,  "General	 Terminal  Interface".)	  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 in
       the section above.  Note that capabilities are defined  in  a  left-to-
       right  order  and,  therefore, a prior definition will override a later
       definition.

   Device Capabilities
       The number of columns on each line for the device is given by the  cols
       numeric	capability.   If  the  device has a screen, then the number of
       lines on the screen is given by the lines capability.   If  the	device
       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	 over‐
       strikes	(rather	 than  clearing	 a position when a character is struck
       over) then it should have the os capability.  If the device is a print‐
       ing terminal, with no soft copy unit, specify both hc and os.  If there
       is a way to move the cursor to the left edge of the current row,	 spec‐
       ify  this  as  cr.  (Normally this will be carriage return, control-M.)
       If there is a way to produce an audible signal (such as	a  bell	 or  a
       beep),  specify	it as bel.  If, like most devices, the device uses the
       XON/XOFF flow-control protocol, specify xon.

       If there is a way to move the cursor one position to the left (such  as
       backspace),  that  capability  should  be  given	 as  cub1.  Similarly,
       sequences to move to the right, up, and down should be given  as	 cuf1,
       cuu1,  and  cud1,  respectively.	  These	 local cursor motions must not
       alter the text they pass over; for example, you would not normally  use
       "cuf1=\s" 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 screen  terminal.
       Programs should never attempt to backspace around the left edge, unless
       bw is specified, and should never attempt to go up locally off the top.
       To  scroll  text	 up,  a	 program goes to the bottom left corner of the
       screen and sends the ind (index) string.	 To scroll text down,  a  pro‐
       gram  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.
       These versions have the same semantics as ind and ri, except that  they
       take  one  argument  and	 scroll	 the number of lines specified by that
       argument.  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.  Backward motion from the left edge of the
       screen is possible only when bw is specified.  In this case, cub1  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 device has switch-selectable auto‐
       matic margins, am should be specified in the terminfo source file.   In
       this case, initialization strings should turn on this option, if possi‐
       ble.  If the device has a command that 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 device 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 hardcopy and  screen  terminals.
       Thus the AT&T 5320 hardcopy terminal is described as follows:

	      5320|att5320|AT&T 5320 hardcopy terminal,
		      am, hc, os,
		      cols#132,
		      bel=^G, cr=\r, cub1=\b, cnd1=\n,
		      dch1=\E[P, dl1=\E[M,
		      ind=\n,

       while the Lear Siegler ADM-3 is described as

	      adm3|lsi adm3,
		      am, bel=^G, clear=^Z, cols#80, cr=^M, cub1=^H,
		      cud1=^J, ind=^J, lines#24,
       Cursor  addressing  and other strings requiring arguments are described
       by a argumentized string capability with escapes in a form (%x)	compa‐
       rable to printf() (see printf(1)).  For example, to address the cursor,
       the cup capability is given, using two arguments:  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 indi‐
       cated by mrcup.

       The argument mechanism uses a stack and special "%" codes to manipulate
       the  stack  in  the manner of Reverse Polish Notation (postfix).	 Typi‐
       cally a sequence pushes one of the arguments onto the  stack  and  then
       prints it in some format.  Often more complex operations are necessary.
       Operations are in postfix form with the operands in  the	 usual	order.
       That  is,  to  subtract	5  from	 the  first  argument,	one  would use
       %p1%{5}%-.

       The "%" encodings have the following meanings:

	      %%	     Outputs "%".

	      %[[:]flags][width[.precision]][doxXs]
			     As in printf(); flags are [-+#] and space.

	      %c	     Print pop() gives %c.

	      %p[1-9]	     Push the ith argument.

	      %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.

	      %'c'	     Push char constant c.

	      %{nn}	     Push decimal constant nn.

	      %l	     Push strlen(pop()).

	      %+ %- %* %/ %m Arithmetic (%m is mod):  push(pop integer2 op pop
			     integer1)	where  integer1	 represents the top of
			     the stack

	      %& %| %^	     Bit operations:  push(pop integer2 op  pop	 inte‐
			     ger1)

	      %= %> %<	     Logical  operations:   push(pop  integer2	op pop
			     integer1)

	      %A %O	     Logical operations:  and, or

	      %! %~	     Unary operations:	push(op pop())

	      %i	     (For ANSI terminals) add 1 to the first  argument
			     (if one argument present), or first two arguments
			     (if more than one argument present).

	      %? expr %t thenpart %e elsepart %;
			     If-then-else; %e elsepart is optional;  else-if's
			     are possible as in Algol 68:

			     %?	 c1  %t b1 %e c2 %t b2 %e c3 %t b3 %e c4 %t b4
			     %e b5 %;

			     ci are conditions; bi are bodies.

       If the "-" flag is used with "%[doxXs]", then a colon  must  be	placed
       between	the  "%" and the "-" to differentiate the flag from the binary
       "%-" operator.  For example: "%:-16.16s".

       Consider the Hewlett-Packard 2645, 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 zero-padded as two digits.  Thus, its cup capability is:

	      cup=\E&a%p2%2.2dc%p1%2.2dY$<6>

       The Micro-Term 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

       Devices that 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 nec‐
       essary because it is not always safe to transmit \n, ^D, and \r, as the
       system may change or discard them.  (The library functions 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%'\s'%+%c%p2%'\s'%+%c

       After sending "\E=", this pushes the first argument, pushes  the	 ASCII
       decimal 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 char‐
       acter.	Then  the  same is done for the second argument.  More complex
       arithmetic is possible using the stack.	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 Hewlett-Packard terminals cannot
       be  used for home without losing some of the other features on the ter‐
       minal.)

       If the device has row or column absolute-cursor addressing,  these  can
       be given as single argument capabilities hpa (horizontal position abso‐
       lute) and  vpa  (vertical  position  absolute).	 Sometimes  these  are
       shorter	than  the  more	 general  two-argument	sequence  (as with the
       Hewlett-Packard 2645) and can be used in preference to  cup.  If	 there
       are  argumentized local motions (such as "move n spaces to the right"),
       these can be given as cud, cub, cuf, and cuu  with  a  single  argument
       indicating  how many spaces to move.  These are primarily useful if the
       device does not have cup, such as the Tektronix 4025.

       If the device 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,
       such  as the Concept, with more than one page of memory.	 If the device
       has only memory relative cursor addressing and not screen relative cur‐
       sor addressing, a one screen-sized window must be fixed into the device
       for cursor addressing to work properly.	This is also used for the Tek‐
       tronix  4025, where smcup sets the command character to be the one used
       by terminfo.  If the rmcup sequence will not restore the	 screen	 after
       an  smcup  sequence is output (to the state prior to outputting smcup),
       specify nrrmc.  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
       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 argument and insert or delete that many lines can be given  as
       il and dl.

       If  the	terminal has a settable destructive scrolling region (like the
       VT100) the command to set this can be described with the	 csr  capabil‐
       ity,  which  takes  two	arguments:   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 this command — the sc and rc (save and restore cursor)  com‐
       mands  are  also	 useful.   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.

       To determine whether a terminal has destructive	scrolling  regions  or
       nondestructive scrolling regions, create a scrolling region in the mid‐
       dle of the screen, place data on	 the  bottom  line  of	the  scrolling
       region, move the cursor to the top line of the scrolling region, and do
       a reverse index (ri) followed by a delete line (dl1)  or	 index	(ind).
       If  the	data  that  was originally on the bottom line of the scrolling
       region was restored into the scrolling region by the dl1 or  ind,  then
       the  terminal  has nondestructive scrolling regions.  Otherwise, it has
       destructive scrolling regions.  Do not specify csr if the terminal  has
       nondestructive  scrolling  regions,  unless ind, ri, indn, rin, dl, and
       dl1 all simulate destructive scrolling.

       If the terminal has the ability to define a window as part  of  memory,
       which  all  commands  affect,  it  should  be given as the argumentized
       string wind.  The four arguments 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 a
       full screen may bring nonblank lines up from below  or  that  scrolling
       back  with ri may bring down nonblank lines.  There are two basic kinds
       of intelligent terminals with respect to insert/delete character opera‐
       tions   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 typ‐
       ing characters causes the rest of the line to shift rigidly and charac‐
       ters  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  multiline
       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 that have an insert mode and ter‐
       minals 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 that send a sequence to open a screen position should give it
       here.  (If your terminal has both, insert mode is usually preferable to
       ich1.  Do not give both unless the terminal requires both to be used in
       combination.)  If post-insert padding is needed, give this as a	number
       of  milliseconds	 padding  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 argument, n, will insert n blanks.

       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 (for example,	 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) 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 argument, 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 argument.  Your
       device may have one or more kinds of display attributes that allow  you
       to  highlight  selected characters when they appear on the screen.  The
       following display modes (shown with the names by which  they  are  set)
       may be available:

	      ·	 A blinking screen (blink)

	      ·	 Bold or extra-bright characters (bold)

	      ·	 Dim or half-bright characters (dim)

	      ·	 Blanking or invisible text (invis)

	      ·	 Protected text (prot)

	      ·	 A reverse-video screen (rev)

	      ·	 An  alternate	character  set	(smacs	to enter this mode and
		 rmacs to exit it).  (If a command is necessary before you can
		 enter	alternate  character  set  mode,  give the sequence in
		 enacs or "enable alternate-character-set" mode.)  Turning  on
		 any of these modes singly may turn off other modes.

       sgr0 should be used to turn off all video enhancement capabilities.  It
       should always be specified because it represents the only way  to  turn
       off some capabilities, such as dim or blink.

       Choose one display method as and use it to highlight error messages and
       other text to which you want to draw attention.	Choose a form of  dis‐
       play  that  provides strong contrast but that is easy on the eyes.  (We
       recommend reverse-video plus half-bright 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.

       Sequences  to begin underlining and end underlining can be specified as
       smul and rmul, respectively.  If the device has a sequence to underline
       the  current  character	and  to move the cursor one space to the right
       (such as the Micro-Term MIME), this sequence can be specified as uc.

       Terminals with the "magic cookie" glitch (xmc) deposit  special	"cook‐
       ies" when they receive mode-setting sequences, which affect the display
       algorithm rather than having extra bits for each character.  Some  ter‐
       minals,	such as the Hewlett-Packard 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.  A good flash can be done by changing the screen
       into reverse video, pad for 200 ms, then return the  screen  to	normal
       video.

       If  the cursor needs to be made more visible than normal when it is not
       on the bottom line (to make, for example, a nonblinking underline  into
       an  easier  to  find block or blinking underline) give this sequence as
       cvvis.  The boolean chts should also be given.  If there is  a  way  to
       make the cursor completely invisible, give that as civis.  The capabil‐
       ity cnorm should be given, which undoes the effects of either of	 these
       modes.

       If your terminal generates underlined characters by using the underline
       character (with no special sequences needed) even though	 it  does  not
       otherwise  overstrike  characters, then specify the capability ul.  For
       devices on which a character overstriking another leaves	 both  charac‐
       ters  on	 the  screen,  specify	the capability os.  If overstrikes are
       erasable with a blank, then this should be indicated by specifying eo.

       If there is a sequence to set arbitrary	combinations  of  modes,  this
       should  be  given as sgr (set attributes), taking nine arguments.  Each
       argument is either 0 or nonzero, as the corresponding attribute	is  on
       or  off.	  The  nine  arguments	are,  in  order:  standout, underline,
       reverse, blink, dim, bold, blank,  protect,  alternate  character  set.
       Not  all modes need to be supported by sgr; only those for which corre‐
       sponding separate attribute commands exist should  be  supported.   For
       example, let's assume that the terminal in question needs the following
       escape sequences to turn on various modes.

	      tparm()
	      Argument	 Attribute    Escape Sequence
	      ─────────────────────────────────────────
			 none	      \E[0m
		 p1	 standout     \E[0;4;7m
		 p2	 underline    \E[0;3m
		 p3	 reverse      \E[0;4m
		 p4	 blink	      \E[0;5m
		 p5	 dim	      \E[0;7m
		 p6	 bold	      \E[0;3;4m
		 p7	 invis	      \E[0;8m
		 p8	 protect      not available
		 p9	 altcharset   ^O (off) ^N (on)
	      ─────────────────────────────────────────

       Note that each escape sequence requires a 0 to  turn  off  other	 modes
       before  turning	on  its own mode.  Also note that, as suggested above,
       standout is set up to be the combination of  reverse  and  dim.	 Also,
       because	this terminal has no bold mode, bold is set up as the combina‐
       tion of reverse and underline.  In  addition,  to  allow	 combinations,
       such  as	 underline+blink, the sequence to use would be \E[0;3;5m.  The
       terminal doesn't have protect mode, either, but that  cannot  be	 simu‐
       lated  in  any way, so p8 is ignored.  The altcharset mode is different
       in that it is either ^O or ^N, depending on whether it is  off  or  on.
       If all modes were to be turned on, the sequence would be:

	      \E[0;3;4;5;7;8m^N

       Now  look  at  when different sequences are output.  For example, ;3 is
       output when either p2 or p6 is true, that is, if	 either	 underline  or
       bold  modes are turned on.  Writing out the above sequences, along with
       their dependencies, gives the following:

	      Sequence	   When to Output     terminfo Translation
	      ──────────────────────────────────────────────────────
	      \E[0	 always		      \E[0
	      ;3	 if p2 or p6	      %?%p2%p6%|%t;3%;
	      ;4	 if p1 or p3 or p6    %?%p1%p3%|%p6%|%t;4%;
	      ;5	 if p4		      %?%p4%t;5%;
	      ;7	 if p1 or p5	      %?%p1%p5%|%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%?%p2%p6%|%t;3%;%?%p1%p3%|%p6%
		      |%t;4%;%?%p5%t;5%;%?%p1%p5%
		      |%t;7%;%?%p7%t;8%;m%?%p9%t^N%e^O%;,

       Remember that sgr and sgr0 must always be specified.  If the device has
       a  keypad  that	transmits  sequences  when  the keys are pressed, this
       information can also be specified.  Note that it	 is  not  possible  to
       handle  devices where the keypad only works in local (this applies, for
       example, to the unshifted Hewlett-Packard 2621 keys).   If  the	keypad
       can be set to transmit or not transmit, specify these sequences as smkx
       and rmkx.  Otherwise the keypad is assumed to always transmit.

       The sequences 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,  ...,
       f63,  the  sequences they send can be specified as kf0, kf1, ..., kf63.
       If the first 11 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 back‐
       ward/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.	Further keys are defined above in the capabilities list.

       Strings to program function keys can be specified as pfkey, pfloc,  and
       pfx.   A	 string	 to  program screen labels should be specified as pln.
       Each of these strings takes two arguments: a  function  key  identifier
       and  a  string to program it with.  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 mode; 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.	If the	device
       has  hardware  tabs, the command to advance to the next tab stop can be
       given as ht (usually control-I).	 A "backtab" command that moves	 left‐
       ward  to	 the next tab stop can be given as cbt.	 By convention, if tty
       modes show that tabs are being expanded by  the	computer  rather  than
       being  sent  to	the device, programs should not use ht or cbt (even if
       they are present) because the user might not have the tab  stops	 prop‐
       erly set.  If the device has hardware tabs that are initially set every
       n spaces when the device is powered up,	the  numeric  argument	it  is
       given,  showing the number of spaces the tabs are set to.  This is nor‐
       mally used by tput init to determine whether to set the mode for	 hard‐
       ware tab expansion and whether to set the tab stops.  If the device has
       tab stops that  can  be	saved  in  nonvolatile	memory,	 the  terminfo
       description  can	 assume that they are properly set.  If there are com‐
       mands 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).

       Other  capabilities include:  is1, is2, and is3, initialization strings
       for the device; iprog, the path name of a program to be run to initial‐
       ize  the device; and if, the name of a file containing long initializa‐
       tion strings.  These strings are expected to set the device into	 modes
       consistent  with	 the  rest  of the terminfo description.  They must be
       sent to the device each time the user logs in and be output in the fol‐
       lowing  order:	run the program iprog; output is1; output is2; set the
       margins using mgc, smgl and smgr; set the tabs using tbc and hts; print
       the  file  if;  and finally output is3.	This is usually done using the
       init option of tput.

       Most initialization is done with is2.  Special device modes can be  set
       up  without  duplicating strings by putting the common sequences in is2
       and special cases in is1 and is3.  Sequences that do  a	reset  from  a
       totally	unknown state can be given as rs1, rs2, rf, and rs3, analogous
       to is1, is2, is3, and if.  (The method using files, if and rf, is  used
       for a few terminals; however, the recommended method is to use the ini‐
       tialization and reset strings.)	 These	strings	 are  output  by  tput
       reset,  which is used when the terminal gets into a wedged state.  Com‐
       mands 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 a terminal into	80-column  mode	 would
       normally	 be  part  of is2, but on some terminals it causes an annoying
       glitch on the screen and is not normally needed because the terminal is
       usually already in 80-column mode.

       If  a  more  complex  sequence  is  needed  to set the tabs than can be
       described by using tbc and hts, the sequence can be placed  in  is2  or
       if.

       Any  margin can be cleared with mgc.  (For instructions on how to spec‐
       ify commands to set and clear margins, see the subsection of  the  sec‐
       tion  below.   Certain  capabilities control padding in the tty driver.
       These are primarily needed by hard-copy terminals, and are used by tput
       init  to set tty modes appropriately (see tput(1)).  Delays embedded in
       the capabilities cr, ind, cub1, ff, and tab can	be  used  to  set  the
       appropriate  delay  bits	 to  be set in the tty driver.	If pb (padding
       baud rate) is given, these values can be ignored at  baud  rates	 below
       the  value  of  pb.  If the terminal has an extra "status line" that is
       not normally used by software, this fact can be indicated.  If the sta‐
       tus  line  is viewed as an extra line below the bottom line, into which
       one can cursor-address normally (such as the Heathkit H19's 25th	 line,
       or  the	24th  line  of	a  VT100  which	 is set to a 23-line scrolling
       region), the capability hs should be given.  Special strings that go to
       a  given	 column of the status line and return from the status line can
       be given as tsl and fsl.	 (fsl must leave the cursor  position  in  the
       same  place it was before tsl.  If necessary, the sc and rc strings can
       be included in tsl and fsl to get this  effect.)	  The  capability  tsl
       takes  one  argument, which is the column number of the status line the
       cursor is to be moved to.

       If escape sequences and other special commands, such as tab, work while
       in  the status line, the flag eslok can be given.  A string which turns
       off the status line (or otherwise erases its contents) should be	 given
       as  dsl.	 If the terminal has commands to save and restore the position
       of the cursor, give them as sc and rc.  The  status  line  is  normally
       assumed to be the same width as the rest of the screen (that is, cols).
       If the status line is a different width (possibly because the  terminal
       does  not allow an entire line to be loaded) the width, in columns, can
       be indicated with the numeric argument wsl.
       If the device has a line drawing alternate character set,  the  mapping
       of  glyph  to character would be given in acsc.	The definition of this
       string is based on the alternate character  set	used  in  the  Digital
       VT100  terminal,	 extended  slightly with some characters from the AT&T
       4410v1 terminal.

					 VT100+
	      Glyph Name		Character
	      ────────────────────────────────────
	      arrow pointing right	    +
	      arrow pointing left	    ,
	      arrow pointing down	    .
	      solid square block	    0
	      lantern symbol		    I
	      arrow pointing up		    -
	      diamond			    `
	      checker board (stipple)	    a
	      degree symbol		    f
	      plus/minus		    g
	      board of squares		    h
	      lower right corner	    j
	      upper right corner	    k
	      upper left corner		    l
	      lower left corner		    m
	      plus			    n
	      scan line 1		    o
	      horizontal line		    q
	      scan line 9		    s
	      left tee			    t
	      right tee			    u
	      bottom tee		    v
	      top tee			    w
	      vertical line		    x
	      bullet			    ~
	      ────────────────────────────────────

       The best way to describe a new device's line graphics set is to	add  a
       third  column to the above table with the characters for the new device
       that produce the appropriate glyph when the  device  is	in  alternate-
       character-set mode.  For example:

				    VT100+     Character Used
	      Glyph Name	   Character   on New Device
	      ────────────────────────────────────────────────
	      upper left corner	       l	     R
	      lower left corner	       m	     F
	      upper right corner       k	     T
	      lower right corner       j	     G
	      horizontal line	       q	     ,

	      vertical line	       x	     .
	      ────────────────────────────────────────────────

       Now write down the characters left to right; for example:

	      acsc=lRmFkTjGq\,x.

       In  addition, terminfo lets you define multiple character sets (see the
       section below).	Most color terminals belong to one of two  classes  of
       terminal:

	      ·	 Tektronix-style

		 The  Tektronix method uses a set of N predefined colors (usu‐
		 ally 8) from which an application can select "current"	 fore‐
		 ground and background colors.	Thus a terminal can support up
		 to N colors mixed into N*N color-pairs to be displayed on the
		 screen at the same time.

	      ·	 Hewlett-Packard-style

		 In  the  HP  method,  the application cannot define the fore‐
		 ground	 independently	of  the	 background,  or   vice-versa.
		 Instead,  the application must define an entire color-pair at
		 once.	Up to M color-pairs, made from 2*M  different  colors,
		 can be defined this way.

       The  numeric variables colors and pairs define the number of colors and
       color-pairs that can be displayed on the screen at the same time.  If a
       terminal	 can  change  the definition of a color (for example, the Tek‐
       tronix 4100 and 4200 series terminals), this should be  specified  with
       ccc (can change color).	To change the definition of a color (Tektronix
       4200 method), use initc (initialize color).   It	 requires  four	 argu‐
       ments:	color  number (ranging from 0 to colors−1) and three RGB (red,
       green, and blue) values or three HLS colors  (Hue,  Lightness,  Satura‐
       tion).  Ranges of RGB and HLS values are terminal-dependent.

       Tektronix  4100 series terminals only use HLS color notation.  For such
       terminals (or dual-mode terminals to be operated in HLS mode) one  must
       define  a  boolean  variable  hls; that would instruct the init_color()
       function (see can_change_color(3X)) to convert its RGB arguments to HLS
       before  sending	them to the terminal.  The last three arguments to the
       initc string would then be HLS values.

       If a terminal can change the definitions of colors, but	uses  a	 color
       notation	 different  from  RGB  and HLS, a mapping to either RGB or HLS
       must be developed.

       If the terminal supports ANSI escape sequences to  set  background  and
       foreground,  they should be coded as setab and setaf, respectively.  If
       the terminal supports other escape  sequences  to  set  background  and
       foreground,  they  should be coded as setb and setf, respectively.  The
       vidputs() function (see vidattr(3X))  and  the  refresh	functions  use
       setab  and  setaf  if  they  are	 defined.   Each of these capabilities
       requires one argument:  the number of the color.	  By  convention,  the
       first  eight  colors (0−7) map to, in order: black, red, green, yellow,
       blue, magenta, cyan, white.  However, color re-mapping may occur or the
       underlying  hardware  may  not  support these colors.  Mappings for any
       additional colors supported by the device (that is, to numbers  greater
       than 7) are at the discretion of the terminfo entry writer.

       To  initialize  a  color-pair (HP method), use initp (initialize pair).
       It requires seven arguments:  the number of a  color-pair  (range=0  to
       pairs−1),  and  six  RGB	 values:  three for the foreground followed by
       three for the background.  (Each of these groups of three should be  in
       the  order  RGB.)   When	 initc or initp are used, RGB or HLS arguments
       should be in the order "red, green, blue" or "hue,  lightness,  satura‐
       tion"),	respectively.	To  make  a  color-pair	 current, use scp (set
       color-pair).  It takes one argument, the number of a color-pair.

       Some terminals (for example, most color	terminal  emulators  for  PCs)
       erase  areas  of	 the  screen  with  current background color.  In such
       cases, bce (background color erase) should be defined.  The variable op
       (original  pair) contains a sequence for setting the foreground and the
       background colors to what they were  at	the  terminal  start-up	 time.
       Similarly, oc (original colors) contains a control sequence for setting
       all colors (for the  Tektronix  method)	or  color-pairs	 (for  the  HP
       method) to the values they had at the terminal start-up time.

       Some color terminals substitute color for video attributes.  Such video
       attributes should not be combined with colors.  Information about these
       video  attributes  should be packed into the ncv (no color video) vari‐
       able.  There is a one-to-one correspondence between the nine least sig‐
       nificant bits of that variable and the video attributes.	 The following
       table depicts this correspondence.

				Bit	 Decimal    Characteristic
		Attribute     Position	  Value	       That Sets
	      ───────────────────────────────────────────────────────
	      WA_STANDOUT	  0	      1	   sgr, parameter 1
	      WA_UNDERLINE	  1	      2	   sgr, parameter 2
	      WA_REVERSE	  2	      4	   sgr, parameter 3
	      WA_BLINK		  3	      8	   sgr, parameter 4
	      WA_DIM		  4	     16	   sgr, parameter 5
	      WA_BOLD		  5	     32	   sgr, parameter 6
	      WA_INVIS		  6	     64	   sgr, parameter 7
	      WA_PROTECT	  7	    128	   sgr, parameter 8
	      WA_ALTCHARSET	  8	    256	   sgr, parameter 9
	      WA_HORIZONTAL	  9	    512	   sgr1, parameter 1
	      WA_LEFT		 10	   1024	   sgr1, parameter 2
	      WA_LOW		 11	   2048	   sgr1, parameter 3
	      WA_RIGHT		 12	   4096	   sgr1, parameter 4
	      WA_TOP		 13	   8192	   sgr1, parameter 5
	      WA_VERTICAL	 14	  16384	   sgr1, parameter 6
	      ───────────────────────────────────────────────────────

       When a particular video attribute should not be used with  colors,  set
       the  corresponding  ncv	bit to 1; otherwise set it to 0.  To determine
       the information to pack into the ncv variable, add the  decimal	values
       corresponding to those attributes that cannot coexist with colors.  For
       example, if the terminal uses colors to	simulate  reverse  video  (bit
       number  2 and decimal value 4) and bold (bit number 5 and decimal value
       32), the resulting value for ncv will be 36 (4 + 32).  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.

       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 use‐
       ful  for superscripts and subscripts on hardcopy 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  charac‐
       ters)  this  can	 be  indicated	with the argumentized string rep.  The
       first argument 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 systems: If the environment variable CC  exists,  all
       occurrences  of the prototype character are replaced with the character
       in CC.

       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 is one of those supported by the virtual ter‐
       minal protocol, the terminal number can be given as vt.	 A  line-turn-
       around  sequence	 to be transmitted before doing reads should be speci‐
       fied in rfi.

       If the device uses XON/XOFF handshaking for  flow  control,  give  xon.
       Padding information should still be included so that functions can make
       better decisions about costs, but actual pad  characters	 will  not  be
       transmitted.   Sequences to turn on and off XON/XOFF handshaking may be
       given in smxon and rmxon.  If the characters used for  handshaking  are
       not ^S and ^Q, they may be specified with xonc and xoffc.

       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.

       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.
	      mc5    Turn on the printer.

       When  the  printer is on, all text sent to the terminal will be sent to
       the printer.  A variation, mc5p, takes one  argument,  and  leaves  the
       printer	on  for	 as many characters as the value of the argument, then
       turns the printer off.  The argument should not	exceed	255.   If  the
       text  is	 not  displayed on the terminal screen when the printer is on,
       specify mc5i (silent printer).  All text, including mc4,	 is  transpar‐
       ently  passed  to  the printer while an mc5p is in effect.  The working
       model used by terminfo fits most terminals reasonably  well.   However,
       some  terminals	do  not completely match that model, requiring special
       support by terminfo.  These are not meant to be construed as  deficien‐
       cies  in	 the  terminals; they are just differences between the working
       model and the actual hardware.  They may be  unusual  devices  or,  for
       some  reason, do not have all the features of the terminfo model imple‐
       mented.

       Terminals that cannot display tilde (~)	characters,  such  as  certain
       Hazeltine terminals, should indicate hz.

       Terminals that ignore a line feed immediately after an am wrap, such as
       the Concept 100, should indicate xenl.  Those  terminals	 whose	cursor
       remains	on  the	 right-most  column  until  another character has been
       received, rather than wrapping immediately upon	receiving  the	right-
       most character, such as the VT100, should also indicate xenl.

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

       Those Teleray terminals whose tabs turn all characters  moved  over  to
       blanks, should indicate xt (destructive tabs).  This capability is also
       taken to mean that it is not possible to position the cursor on top  of
       a  "magic cookie".  Therefore, to erase standout mode, it is necessary,
       instead, to use delete and insert line.

       For Beehive Superbee terminals that do not transmit the escape or  con‐
       trol-C  characters,  specify  xsb,  indicating that the f1 key is to be
       used for escape and the f2 key for control-C.  If there are two similar
       terminals, one can be defined as being just like the other with certain
       exceptions.  The string capability use can be given with	 the  name  of
       the similar terminal.  The capabilities given before use override those
       in the terminal type invoked by use.  A capability can be  canceled  by
       placing capability-name@ prior to the appearance of the string capabil‐
       ity use.	 For example, the entry:

	      att4424-2|Teletype 4424 in display function group ii,
		      rev@, sgr@, smul@, use=att4424,

       defines an AT&T 04424 terminal that does not have  the  rev,  sgr,  and
       smul  capabilities,  and	 hence cannot do highlighting.	This is useful
       for different modes for a terminal, or for different user  preferences.
       More than one use capability may be given.

   Printer Capabilities
       The  terminfo database lets you define capabilities of printers as well
       as terminals.  Capabilities available for printers are included in  the
       lists  in  the section above.  Because argumentized string capabilities
       work only with integer values, terminfo designers should create strings
       that expect numeric values that have been rounded.  Application design‐
       ers should note this and should always  round  values  to  the  nearest
       integer	before	using  them  with a argumentized string capability.  A
       printer's resolution is defined to be the smallest spacing  of  charac‐
       ters  it	 can achieve.  In general, the horizontal and vertical resolu‐
       tions are independent.  Thus the vertical resolution of a  printer  can
       be  determined  by  measuring  the smallest achievable distance between
       consecutive printing baselines, while the horizontal resolution can  be
       determined  by  measuring  the smallest achievable distance between the
       leftmost edges of consecutive printed, identical, characters.

       All printers are assumed to be capable of printing with a uniform hori‐
       zontal  and  vertical  resolution.   The view of printing that terminfo
       currently presents is one of printing inside  a	uniform	 matrix:   All
       characters  are	printed	 at fixed positions relative to each "cell" in
       the matrix; furthermore, each cell has  the  same  size	given  by  the
       smallest horizontal and vertical step sizes dictated by the resolution.
       (The cell size can be changed as will be seen later.)

       Many printers are capable of "proportional printing", where  the	 hori‐
       zontal spacing depends on the size of the character last printed.  ter‐
       minfo does not make use of this capability, although  it	 does  provide
       enough  capability definitions to allow an application to simulate pro‐
       portional printing.

       A printer must not only be able to print characters as  close  together
       as  the	horizontal and vertical resolutions suggest, but also of "mov‐
       ing" to a position an integral multiple of the smallest	distance  away
       from  a previous position.  Thus printed characters can be spaced apart
       a distance that is an integral multiple of the smallest distance, up to
       the length or width of a single page.

       Some  printers  can  have  different resolutions depending on different
       "modes".	 In "normal mode",  the	 existing  terminfo  capabilities  are
       assumed to work on columns and lines, just like a video terminal.  Thus
       the old lines capability would give the length of a page in lines,  and
       the  cols  capability  would  give  the width of a page in columns.  In
       "micro mode," many terminfo capabilities work on	 increments  of	 lines
       and columns.  With some printers the micro mode may be concomitant with
       normal mode, so that all the capabilities work at the same time.
       The printing resolution of a printer is given in	 several  ways.	  Each
       specifies the resolution as the number of smallest steps per distance:

	      Characteristic Number of Smallest Steps
	      ────────────────────────────────────────
	      orhi     Steps per inch horizontally
	      orvi     Steps per inch vertically
	      orc      Steps per column
	      orl      Steps per line
	      ────────────────────────────────────────

       When printing in normal mode, each character printed causes movement to
       the next column, except in special cases described later; the  distance
       moved is the same as the per-column resolution.	Some printers cause an
       automatic movement to the next line when a character is printed in  the
       rightmost  position;  the  distance moved vertically is the same as the
       per-line resolution.  When printing in micro mode, these distances  can
       be different, and may be zero for some printers.

	      Automatic Motion after Printing
	      ────────────────────────────────
	      Normal Mode:
	      orc   Steps moved horizontally
	      orl   Steps moved vertically
	      ────────────────────────────────
	      Micro Mode:
	      mcs   Steps moved horizontally
	      mls   Steps moved vertically
	      ────────────────────────────────

       Some  printers  are  capable of printing wide characters.  The distance
       moved when a wide character is printed in normal mode may be  different
       from  when  a  regular  width character is printed.  The distance moved
       when a wide character is printed in micro mode may  also	 be  different
       from when a regular character is printed in micro mode, but the differ‐
       ences are assumed to be related:	 If the distance moved for  a  regular
       character  is  the same whether in normal mode or micro mode (mcs=orc),
       then the distance moved for a wide character is also the	 same  whether
       in  normal  mode or micro mode.	This doesn't mean the normal character
       distance is necessarily the same as the wide character  distance,  just
       that  the distances don't change with a change in normal to micro mode.
       However, if the distance moved for a regular character is different  in
       micro  mode from the distance moved in normal mode (mcs<orc), the micro
       mode distance is assumed to be the same for a wide character printed in
       micro mode, as the table below shows.

	      Automatic Motion after Printing Wide Character
	      ───────────────────────────────────────────────
	      Normal Mode or Micro Mode (mcs = orc):
	      widcs	     Steps moved horizontally
	      ───────────────────────────────────────────────
	      Micro Mode (mcs < orc):
	      mcs	     Steps moved horizontally
	      ───────────────────────────────────────────────

       There may be control sequences to change the number of columns per inch
       (the character pitch) and to change the number of lines per  inch  (the
       line pitch).  If these are used, the resolution of the printer changes,
       but the type of change depends on the printer:

	      Changing the Character/Line Pitches
	      ────────────────────────────────────────────────────────
	      cpi    Change character pitch
	      cpix   If set, cpi changes orhi; otherwise, changes orc

			    lpi	   Change line pitch
	      lpix   If set, lpi changes orvi; otherwise, changes orl

			    chr	   Change steps per column
	      cvr    Change steps per line
	      ────────────────────────────────────────────────────────

       The cpi and lpi string capabilities are each used with a	 single	 argu‐
       ment,  the pitch in columns (or characters) and lines per inch, respec‐
       tively.	The chr and cvr string capabilities are each used with a  sin‐
       gle argument, the number of steps per column and line, respectively.

       Using any of the control sequences in these strings will imply a change
       in some of the values of orc, orhi, orl, and orvi.  Also, the  distance
       moved  when  a wide character is printed, widcs, changes in relation to
       orc. The distance moved when a character is printed in micro mode, mcs,
       changes similarly, with one exception:  if the distance is 0 or 1, then
       no change is assumed.

       Programs that use cpi, lpi, chr, or cvr should recalculate the  printer
       resolution  (and	 should	 recalculate  other  values.   See the section
       below.

	      Effects of Changing the Character/Line Pitches
	      ─────────────────────────────────────────────────────────
			Before			      After
	      ─────────────────────────────────────────────────────────
	      Using cpi with cpix clear:

			    orhi'			 orhi
	      orc'			   orc = orhi / Vcpi
	      ─────────────────────────────────────────────────────────
	      Using cpi with cpix set:

			    orhi'			 orhi = orc * Vcpi
	      orc'			   orc
	      ─────────────────────────────────────────────────────────
	      Using lpi with lpix clear:

			    orvi'			 orvi
	      orl'			   orl = orvi / Vlpi
	      ─────────────────────────────────────────────────────────
	      Using lpi with lpix set:

			    orvi'			 orvi = orl * Vlp
	      orl'			   orl
	      ─────────────────────────────────────────────────────────
	      Using chr:

			    orhi'			 orhi
	      orc'			   Vchr
	      ─────────────────────────────────────────────────────────
	      Using cvr:

			    orvi'			 orvi
	      orl'			   Vcvr
	      ─────────────────────────────────────────────────────────
	      Using cpi or chr:

			    widcs'			 widcs = widcs' * orc / orc'
	      mcs'			   mcs = mcs' * orc / orc'
	      ─────────────────────────────────────────────────────────

       Vchr, Vcpi, Vcvr, and Vlpi are the arguments used with chr,  cpi,  cvr,
       and lpi, respectively.  The prime marks (') indicate the old values.

   Capabilities That Cause Movement
       In  the	following descriptions, "movement" refers to the motion of the
       "current position".  With video terminals this  would  be  the  cursor;
       with some printers, this is the carriage position.  Other printers have
       different equivalents.  In general, the current	position  is  where  a
       character would be displayed if printed.

       terminfo has string capabilities for control sequences that cause move‐
       ment a number of full columns or lines.	It also has equivalent	string
       capabilities  for  control  sequences  that  cause movement a number of
       smallest steps.

	      String Capabilities for Motion
	      ───────────────────────────────────
	      mcub1   Move 1 step left
	      mcuf1   Move 1 step right
	      mcuu1   Move 1 step up
	      mcud1   Move 1 step down

			    mcub    Move N steps left
	      mcuf    Move N steps right
	      mcuu    Move N steps up
	      mcud    Move N steps down

			    mhpa    Move N steps from the left
	      mvpa    Move N steps from the top
	      ───────────────────────────────────

       The latter six strings are each used with a single argument, N.

       Sometimes the motion is limited to less than the width or length	 of  a
       page.   Also, some printers don't accept absolute motion to the left of
       the current position.  terminfo has capabilities for  specifying	 these
       limits.

	      Limits to Motion
	      ───────────────────────────────────────────────────
	      mjump   Limit on use of mcub1, mcuf1, mcuu1, mcud1
	      maddr   Limit on use of mhpa, mvpa

			    xhpa    If set, hpa and mhpa can't move left
	      xvpa    If set, vpa and mvpa can't move up
	      ───────────────────────────────────────────────────

       If  a printer needs to be in a "micro mode" for the motion capabilities
       described above to work, there are string capabilities defined to  con‐
       tain  the  control  sequence to enter and exit this mode.  A boolean is
       available for those printers where using a carriage  return  causes  an
       automatic return to normal mode.

	      Entering/Exiting Micro Mode
	      ──────────────────────────────────
	      smicm   Enter micro mode
	      rmicm   Exit micro mode

			    crxm    Using cr exits micro mode
			    ──────────────────────────────────

       The movement made when a character is printed in the rightmost position
       varies among printers.  Some make no movement, some move to the	begin‐
       ning  of	 the next line, others move to the beginning of the same line.
       terminfo has boolean capabilities for describing all three cases.

	      What Happens After Character Printed in Rightmost Position
	      ───────────────────────────────────────────────────────────
	      sam	  Automatic move to beginning of same line
	      ───────────────────────────────────────────────────────────

       Some printers can be put in a mode where the normal direction of motion
       is  reversed.   This  mode  can	be especially useful when there are no
       capabilities for leftward or upward motion, because those  capabilities
       can  be	built from the motion reversal capability and the rightward or
       downward motion capabilities.  It is best to leave it up to an applica‐
       tion  to	 build	the  leftward  or upward capabilities, though, and not
       enter them in the  terminfo  database.	This  allows  several  reverse
       motions	to  be	strung	together without intervening wasted steps that
       leave and reenter reverse mode.

	      Entering/Exiting Reverse Modes
	      ──────────────────────────────────────────────
	      slm      Reverse sense of horizontal motions
	      rlm      Restore sense of horizontal motions
	      sum      Reverse sense of vertical motions
	      rum      Restore sense of vertical motions

			    While sense of horizontal motion is reversed:
	      mcub1    Move 1 step right
	      mcuf1    Move 1 step left
	      mcub     Move N steps right
	      mcuf     Move N steps left
	      cub1     Move 1 column right
	      cuf1     Move 1 column left
	      cub      Move N columns right
	      cuf      Move N columns left

			    While sense of vertical motion is reversed:
	      mcuu1    Move 1 step down
	      mcud1    Move 1 step up
	      mcuu     Move N steps down
	      mcud     Move N steps up
	      cuu1     Move 1 line down
	      cud1     Move 1 line up
	      cuu      Move N lines down
	      cud      Move N lines up
	      ──────────────────────────────────────────────

       The reverse motion modes should not affect the mvpa and	mhpa  absolute
       motion capabilities.  The reverse vertical motion mode should, however,
       also reverse the action of the line "wrapping" that occurs when a char‐
       acter  is  printed in the right-most position.  Thus printers that have
       the standard terminfo capability am defined should experience motion to
       the  beginning  of the previous line when a character is printed in the
       rightmost position in reverse vertical motion mode.

       The action when any other  motion  capabilities	are  used  in  reverse
       motion  modes  is  not defined; thus, programs must exit reverse motion
       modes before using other motion capabilities.

       Two miscellaneous capabilities complete the list	 of  motion  capabili‐
       ties.   One of these is needed for printers that move the current posi‐
       tion to the beginning of a line when certain control  characters,  such
       as  line	 feed or form feed, are used.  The other is used for the capa‐
       bility of suspending the motion that normally occurs after  printing  a
       character.

	      Miscellaneous Motion Strings
	      ─────────────────────────────────────────────────────────────────
	      docr    List of control characters causing cr
	      zerom   Prevent auto motion after printing next single character
	      ─────────────────────────────────────────────────────────────────

       terminfo	 provides  two	strings for setting margins on terminals:  one
       for the left and one for the right margin.  Printers, however, have two
       additional  margins, for the top and bottom margins of each page.  Fur‐
       thermore, some printers require not using motion strings	 to  move  the
       current	position  to  a	 margin	 and then fixing the margin there, but
       require the specification of where a margin should be regardless of the
       current position.  Therefore terminfo offers six additional strings for
       defining margins with printers.

	      Setting Margins
	      ───────────────────────────────────────────
	      smgl    Set left margin at current column
	      smgr    Set right margin at current column
	      smgb    Set bottom margin at current line
	      smgt    Set top margin at current line

			    smgbp   Set bottom margin at line N
	      smglp   Set left margin at column N
	      smgrp   Set right margin at column N
	      smgtp   Set top margin at line N
	      ───────────────────────────────────────────

       The last four strings are used with one or more arguments that give the
       position	 of  the margin or margins to set.  If both of smglp and smgrp
       are set, each is used with a single argument, N, that gives the	column
       number  of  the	left and right margin, respectively.  If both of smgtp
       and smgbp are set, each is used to  set	the  top  and  bottom  margin,
       respectively:  smgtp is used with a single argument, N, the line number
       of the top margin; however, smgbp is used with two arguments, N and  M,
       that give the line number of the bottom margin, the first counting from
       the top of the page and the second  counting  from  the	bottom.	  This
       accommodates  the two styles of specifying the bottom margin in differ‐
       ent manufacturers' printers.   When  coding  a  terminfo	 entry	for  a
       printer	that  has  a  settable bottom margin, only the first or second
       argument should be used, depending on the  printer.   When  writing  an
       application  that  uses	smgbp to set the bottom margin, both arguments
       must be given.

       If only one of smglp and smgrp is set, then it is used with  two	 argu‐
       ments,  the column number of the left and right margins, in that order.
       Likewise, if only one of smgtp and smgbp is set, then it is  used  with
       two  arguments  that  give  the	top and bottom margins, in that order,
       counting from the top of the page.  Thus when coding a  terminfo	 entry
       for a printer that requires setting both left and right or top and bot‐
       tom margins simultaneously, only one of smglp and smgrp	or  smgtp  and
       smgbp  should be defined; the other should be left blank.  When writing
       an application that uses these string capabilities, the pairs should be
       first checked to see if each in the pair is set or only one is set, and
       should then be used accordingly.

       In counting lines or columns, line zero is the top line and column zero
       is  the	left-most  column.   A zero value for the second argument with
       smgbp means the bottom line of the page.

       All margins can be cleared with mgc.  Five sets of strings describe the
       capabilities printers have of enhancing printed text.

	      Enhanced Printing
	      ─────────────────────────────────────────────────────
	      sshm    Enter shadow-printing mode
	      rshm    Exit shadow-printing mode

			    sitm    Enter italicizing mode
	      ritm    Exit italicizing mode

			    swidm   Enter wide character mode
	      rwidm   Exit wide character mode

			    ssupm   Enter superscript mode
	      rsupm   Exit superscript mode
	      supcs   List of characters available as superscripts

			    ssubm   Enter subscript mode
	      rsubm   Exit subscript mode
	      subcs   List of characters available as subscripts
	      ─────────────────────────────────────────────────────

       If  a printer requires the sshm control sequence before every character
       to be shadow-printed, the rshm string is	 left  blank.	Thus  programs
       that  find  a  control sequence in sshm but none in rshm should use the
       sshm control sequence before every character to be shadow-printed; oth‐
       erwise, the sshm control sequence should be used once before the set of
       characters to be shadow-printed, followed by rshm.  The	same  is  also
       true   of   each	  of  the  sitm-ritm,  swidm-rwidm,  ssupm-rsupm,  and
       ssubm-rsubm pairs.

       terminfo also has a capability for  printing  emboldened	 text  (bold).
       While  shadow printing and emboldened printing are similar in that they
       "darken" the text, many printers produce these two types	 of  print  in
       slightly	 different  ways.   Generally,	emboldened printing is done by
       overstriking the same character one or  more  times.   Shadow  printing
       likewise	 usually  involves overstriking, but with a slight movement up
       and/or to the side so that the character is "fatter".

       It is assumed that enhanced printing modes are  independent  modes,  so
       that  it	 would	be  possible, for instance, to shadow print italicized
       subscripts.

       As mentioned earlier, the amount of  motion  automatically  made	 after
       printing a wide character should be given in widcs.

       If  only	 a  subset of the printable ASCII characters can be printed as
       superscripts or subscripts, they should be listed  in  supcs  or	 subcs
       strings,	 respectively.	 If the ssupm or ssubm strings contain control
       sequences, but the corresponding supcs or subcs strings are  empty,  it
       is  assumed that all printable ASCII characters are available as super‐
       scripts or subscripts.

       Automatic motion made after printing  a	superscript  or	 subscript  is
       assumed	to  be the same as for regular characters.  Thus, for example,
       printing any of the following  three  examples  results	in  equivalent
       motion:

	      Bi     Bi	    Bi

       Note that the existing msgr boolean capability describes whether motion
       control sequences can be used while in "standout mode".	This  capabil‐
       ity  is extended to cover the enhanced printing modes added here.  msgr
       should be set  for  those  printers  that  accept  any  motion  control
       sequences  without  affecting shadow, italicized, widened, superscript,
       or subscript printing.  Conversely, if  msgr  is	 not  set,  a  program
       should end these modes before attempting any motion.

   Alternate Character Sets
       In  addition  to allowing you to define line graphics (described in the
       subsection of the section above), terminfo lets	you  define  alternate
       character  sets.	  The following capabilities cover printers and termi‐
       nals with multiple selectable or definable character sets:

	      Alternate Character Sets
	      ──────────────────────────────────────────────────────────
	      scs     Select character set N
	      scsd    Start definition of character set N, M characters
	      defc    Define character A, B dots wide, descender D
	      rcsd    End definition of character set N
	      csnm    List of character set names
	      daisy   Printer has manually changed print-wheels
	      ──────────────────────────────────────────────────────────

       The scs, rcsd, and csnm strings are used with a single argument,	 N,  a
       number from 0 to 63 that identifies the character set.  The scsd string
       is also used with the argument N and another, M, that gives the	number
       of  characters  in  the	set.  The defc string is used with three argu‐
       ments:  A gives the ASCII code  representation  for  the	 character,  B
       gives  the width of the character in dots, and D is zero or one depend‐
       ing on whether the character is a "descender" or not.  The defc	string
       is  also	 followed  by a string of "image-data" bytes that describe how
       the character looks (see below).

       Character set 0 is the default character set present after the  printer
       has  been  initialized.	 Not  every  printer has 64 character sets, of
       course; using scs with an argument that	doesn't	 select	 an  available
       character  set  should  cause  a null pointer to be returned by tparm()
       (see tigetflag(3X)).

       If a character set has to be defined before it can be  used,  the  scsd
       control	sequence  is to be used before defining the character set, and
       the rcsd is to be used after.  They should also cause a NULL pointer to
       be returned by tparm() when used with an argument N that doesn't apply.
       If a character set still has to be selected after  being	 defined,  the
       scs control sequence should follow the rcsd control sequence.  By exam‐
       ining the results of using each of the scs, scsd, and rcsd strings with
       a  character  set  number in a call to tparm(), a program can determine
       which of the three are needed.

       Between use of the scsd and rcsd strings, the  defc  string  should  be
       used to define each character.  To print any character on printers cov‐
       ered by terminfo, the ASCII code is sent to the printer.	 This is  true
       for  characters	in  an	alternate  set as well as "normal" characters.
       Thus the definition of a character includes the ASCII code that	repre‐
       sents  it.   In	addition, the width of the character in dots is given,
       along with an indication of whether the character should descend	 below
       the  print  line	 (such	as the lower case letter "g" in most character
       sets).  The width of the character in dots also indicates the number of
       image-data  bytes  that	will follow the defc string.  These image-data
       bytes indicate where in a dot-matrix pattern ink should be  applied  to
       "draw"  the  character;	the  number  of these bytes and their form are
       defined in the section below.

       It's easiest for the creator of terminfo entries to refer to each char‐
       acter  set by number; however, these numbers will be meaningless to the
       application developer.  The csnm string alleviates this problem by pro‐
       viding names for each number.

       When  used  with	 a character set number in a call to tparm(), the csnm
       string will produce the equivalent name.	 These names should be used as
       a reference only.  No naming convention is implied, although anyone who
       creates a terminfo entry for a printer should use names consistent with
       the  names found in user documents for the printer.  Application devel‐
       opers should allow a user to specify a character set by number (leaving
       it  up  to the user to examine the csnm string to determine the correct
       number), or by name, where the application examines the csnm string  to
       determine the corresponding character set number.

       These capabilities are likely to be used only with dot-matrix printers.
       If they are not available, the strings  should  not  be	defined.   For
       printers	 that  have  manually changed print-wheels or font cartridges,
       the boolean daisy is set.

   Dot-Matrix Graphics
       Dot-matrix printers typically have the capability of reproducing raster
       graphics images.	 Three numeric capabilities and three string capabili‐
       ties help a program draw raster-graphics images independent of the type
       of  dot-matrix  printer	or  the number of pins or dots the printer can
       handle at one time.

	      Dot-Matrix Graphics
	      ────────────────────────────────────────────────────────
	      npins    Number of pins, N, in print-head
	      spinv    Spacing of pins vertically in pins per inch
	      spinh    Spacing of dots horizontally in dots per inch
	      porder   Matches software bits to print-head pins
	      sbim     Start printing bit image graphics, B bits wide
	      rbim     End printing bit image graphics
	      ────────────────────────────────────────────────────────

       The sbim string is used with a single argument, B,  the	width  of  the
       image in dots.

       The  model  of  dot-matrix or raster-graphics that terminfo presents is
       similar to the technique used for most dot-matrix printers:  each  pass
       of  the printer's print-head is assumed to produce a dot-matrix that is
       N dots high and B dots wide.  This is typically a wide, squat,  rectan‐
       gle  of	dots.  The height of this rectangle in dots will vary from one
       printer to the next; this is given in  the  npins  numeric  capability.
       The  size  of  the rectangle in fractions of an inch will also vary; it
       can be deduced from the spinv and  spinh	 numeric  capabilities.	  With
       these three values an application can divide a complete raster-graphics
       image into several horizontal strips, perhaps interpolating to  account
       for different dot spacing vertically and horizontally.

       The  sbim  and  rbim  strings start and end a dot-matrix image, respec‐
       tively.	The sbim string is used with a single argument that gives  the
       width  of the dot-matrix in dots.  A sequence of "image-data bytes" are
       sent to the printer after the sbim string and before the	 rbim  string.
       The  number  of	bytes  is a integral multiple of the width of the dot-
       matrix; the multiple and the form of each byte  is  determined  by  the
       porder string as described below.

       The  porder  string is a comma separated list of pin numbers optionally
       followed by an numerical offset.	 The offset, if	 given,	 is  separated
       from the list with a semicolon.	The position of each pin number in the
       list corresponds to a bit in an 8-bit data byte.	 The pins are numbered
       consecutively from 1 to npins, with 1 being the top pin.	 Note that the
       term "pin" is used loosely here; "ink-jet"  dot-matrix  printers	 don't
       have pins, but can be considered to have an equivalent method of apply‐
       ing a single dot of ink to paper.  The bit positions in porder  are  in
       groups of 8, with the first position in each group the most significant
       bit and the last position the least significant	bit.   An  application
       produces 8-bit bytes in the order of the groups in porder.

       An application computes the "image-data bytes" from the internal image,
       mapping vertical dot positions  in  each	 print-head  pass  into	 8-bit
       bytes,  using  a	 1  bit where ink should be applied and 0 where no ink
       should be applied.  This can be reversed (0 bit for ink, 1 bit  for  no
       ink)  by	 giving	 a  negative  pin number.  If a position is skipped in
       porder, a 0 bit is used.	 If a position has a lower case "x" instead of
       a  pin  number,	a  1 bit is used in the skipped position.  For consis‐
       tency, a lower case "o" can be used to represent a  0  filled,  skipped
       bit.   There  must  be a multiple of 8 bit positions used or skipped in
       porder; if not, low-order bits of the last byte are set to 0.  The off‐
       set, if given, is added to each data byte; the offset can be negative.

       Some  examples may help clarify the use of the porder string.  The AT&T
       470, AT&T 475 and C.Itoh 8510 printers provide eight pins for graphics.
       The  pins  are  identified  top to bottom by the 8 bits in a byte, from
       least significant to most.  The porder strings for these printers would
       be  8,7,6,5,4,3,2,1.   The  AT&T 478 and AT&T 479 printers also provide
       eight pins for graphics.	 However,  the	pins  are  identified  in  the
       reverse	order.	 The  porder  strings  for  these  printers  would  be
       1,2,3,4,5,6,7,8.	 The AT&T 5310, AT&T 5320, Digital LA100, and  Digital
       LN03  printers  provide six pins for graphics.  The pins are identified
       top to bottom by the decimal values 1, 2, 4, 8, 16 and 32.  These  cor‐
       respond to the low six bits in an 8-bit byte, although the decimal val‐
       ues are further offset by the value 63.	The porder  string  for	 these
       printers would be ,,6,5,4,3,2,1;63, equivalent to o,o,6,5,4,3,2,1;63.

   Effect of Changing Printing Resolution
       If  the	control	 sequences  to	change the character pitch or the line
       pitch are used, the pin or dot spacing may change:

	      Changing the Character/Line Pitches
	      ────────────────────────────────────
	      cpi     Change character pitch
	      cpix    If set, cpi changes spinh

			    lpi	    Change line pitch
	      lpix    If set, lpi changes spinv
	      ────────────────────────────────────

       Programs that use cpi or lpi should recalculate the dot spacing:

	      Effects of Changing the Character/Line Pitches
	      ───────────────────────────────────────────────────────────
			Before			       After
	      ───────────────────────────────────────────────────────────
	      Using cpi with cpix clear:
	      spinh'			   spinh
	      ───────────────────────────────────────────────────────────
	      Using cpi with cpix set:
	      spinh'			   spinh = spinh' * orhi / orhi'
	      ───────────────────────────────────────────────────────────
	      Using lpi with lpix clear:
	      spinv'			   spinv
	      ───────────────────────────────────────────────────────────
	      Using lpi with lpix set:
	      spinv'			   spinv = spinv' * orhi / orhi'
	      ───────────────────────────────────────────────────────────
	      Using chr:
	      spinh'			   spinh
	      ───────────────────────────────────────────────────────────
	      Using cvr:
	      spinv'			   spinv
	      ───────────────────────────────────────────────────────────

       orhi' and orhi are the values of the horizontal resolution in steps per
       inch,  before  using  cpi and after using cpi, respectively.  Likewise,
       orvi' and orvi are the values of the vertical resolution in  steps  per
       inch,  before  using  lpi and after using lpi, respectively.  Thus, the
       changes in the dots per inch for dot-matrix graphics follow the changes
       in steps per inch for printer resolution.  Many dot-matrix printers can
       alter the dot spacing of printed text to produce printing or  printing.
       It  is important to be able to choose one or the other because the rate
       of printing generally decreases as the quality improves.	 Three strings
       describe these capabilities:

	      Print Quality
	      ──────────────────────────────────────
	      snlq    Set near-letter quality print
	      snrmq   Set normal quality print
	      sdrfq   Set draft quality print
	      ──────────────────────────────────────

       The  capabilities  are  listed  in  decreasing levels of quality.  If a
       printer doesn't have all three levels, the respective strings should be
       left  blank.  Because there is no standard protocol that can be used to
       keep a program synchronized with a printer, and because modern printers
       can  buffer  data before printing it, a program generally cannot deter‐
       mine at any time what has been printed.	Two numeric  capabilities  can
       help a program estimate what has been printed.

	      Print Rate/Buffer Size
	      ────────────────────────────────────────────────────
	      cps     Nominal print rate in characters per second
	      bufsz   Buffer capacity in characters
	      ────────────────────────────────────────────────────

       cps  is the nominal or average rate at which the printer prints charac‐
       ters; if this value is not given, the rate should be estimated at  one-
       tenth  the prevailing baud rate.	 bufsz is the maximum number of subse‐
       quent characters buffered before the guaranteed printing of an  earlier
       character,  assuming  proper flow control has been used.	 If this value
       is not given it is assumed that the printer does not buffer characters,
       but prints them as they are received.

       As  an  example, if a printer has a 1000-character buffer, then sending
       the letter "a" followed by 1000 additional characters is guaranteed  to
       cause  the letter "a" to print.	If the same printer prints at the rate
       of 100 characters per second, then it should take 10 seconds  to	 print
       all  the	 characters in the buffer, less if the buffer is not full.  By
       keeping track of the characters sent to	a  printer,  and  knowing  the
       print  rate  and buffer size, a program can synchronize itself with the
       printer.

       Note that most printer manufacturers advertise the maximum print	 rate,
       not  the	 nominal  print rate.  A good way to get a value to put in for
       cps is to generate a few pages of text, count the number	 of  printable
       characters, and then see how long it takes to print the text.

       Applications  that use these values should recognize the variability in
       the print rate.	Straight text, in short lines, with no	embedded  con‐
       trol  sequences	will  probably	print at close to the advertised print
       rate and probably faster than the rate in cps.  Graphics	 data  with  a
       lot  of	control	 sequences,  or very long lines of text, will print at
       well below the advertised rate and below	 the  rate  in	cps.   If  the
       application is using cps to decide how long it should take a printer to
       print a block of text, the application should pad the estimate.	If the
       application  is	using  cps  to	decide	how much text has already been
       printed, it should shrink the estimate.	The application will thus  err
       in  favor  of  the user, who wants, above all, to see all the output in
       its correct place.

   Selecting a Terminal
       If the environment variable TERMINFO  is	 defined,  any	program	 using
       Curses  checks  for  a local terminal definition before checking in the
       standard place.	For example, if TERM is set to att4424, then the  com‐
       piled terminal definition is found by default in the path

	      a/att4424

       within an implementation-specific directory.

       (The  "a"  is copied from the first letter of att4424 to avoid creation
       of huge directories.)  However, if TERMINFO is  set  to	$HOME/myterms,
       Curses first checks

	      $HOME/myterms/a/att4424

       If that fails, it then checks the default path name.

       This  is	 useful	 for developing experimental definitions or when write
       permission in the implementation-defined default database is not avail‐
       able.

       If  the LINES and COLUMNS environment variables are set, or if the pro‐
       gram is executing in a window environment, line and column  information
       in the environment will override information read by terminfo.

   Application Usage
       The  most effective way to prepare a terminal description is by imitat‐
       ing the description of a similar terminal in terminfo and to build up a
       description  gradually,	using  partial descriptions with a screen-ori‐
       ented editor, to check that they are correct.  To  easily  test	a  new
       terminal	 description,  the environment variable TERMINFO can be set to
       the path name of a directory containing the compiled  description,  and
       programs	 will  look there rather than in the terminfo database.	 Every
       device must be assigned a name, such as vt100.	Device	names  (except
       the  long  name) should be chosen using the following conventions.  The
       name should not contain hyphens because hyphens are  reserved  for  use
       when adding suffixes that indicate special modes.

       These  special  modes may be modes that the hardware can be in, or user
       preferences.  To assign a special mode to a particular device, append a
       suffix  consisting  of  a  hyphen  and  an indicator of the mode to the
       device name.  For example, the  -w  suffix  means  when	specified,  it
       allows  for  a width of 132 columns instead of the standard 80 columns.
       Therefore, if you want to use a VT100 device set to wide mode, name the
       device vt100-w.	Use the following suffixes where possible:

	      Suffix		       Meaning			   Example
	      ──────────────────────────────────────────────────────────────
	      -w       Wide mode (more than 80 columns)		  5410-w
	      -am      With automatic margins (usually default)	  vt100-am
	      -nam     Without automatic margins		  vt100-nam
	      -n       Number of lines on the screen		  2300-40
	      -na      No arrow keys (leave them in local)	  c100-na
	      -np      Number of pages of memory		  c100-4p
	      -rv      Reverse video				  4415-rv
	      ──────────────────────────────────────────────────────────────
       It  is  implementation-defined  how the entries in terminfo may be cre‐
       ated.

       There is more than one way to write a terminfo entry.  A minimal	 entry
       may  permit applications to use Curses to operate the terminal.	If the
       entry is enhanced to describe  more  of	the  terminal's	 capabilities,
       applications  can  use  Curses  to  invoke those features, and can take
       advantages of optimizations within Curses and thus operate  more	 effi‐
       ciently.	  For  most  terminals,	 an optimal terminfo entry has already
       been written.

EXTERNAL INFLUENCES
   Environment Variables
       CC	 Specifies a substitute	 character  for	 a  prototype  command
		 character.  See cmdch in the subsection of the section.

       COLUMNS	 Specifies  column  information	 that  can override the column
		 information in terminfo.  See the section.

       LINES	 Specifies lines  information  that  can  override  the	 lines
		 information in terminfo.  See the section.

       TERM	 Specifies the name of the current terminal.  See the section.

       TERMINFO	 Specifies  an alternate location for a local terminal defini‐
		 tion.	If the value in TERM is not found in $TERMINFO/?/*  or
		 if  TERMINFO  is  not set, the value is sought in the default
		 location, /usr/lib/terminfo/?/*.  See the section.

SEE ALSO
       tic(1), untic(1), tgetent(3X), tigetflag(3X), term(4), term(5).

       ANSI Standard X3.64-1979.

       X/Open System Interface Definitions, Issue 4, Version 2.

				ENHANCED CURSES			   terminfo(4)
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