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term::ansi::code::ctrl - Terminal control
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term::ansi::code::ctrl(n) 0.2 tcllib "Terminal control"

Name

term::ansi::code::ctrl - ANSI control sequences

Synopsis

  • package require Tcl 8.4
  • package require term::ansi::code ?0.2?
  • package require term::ansi::code::ctrl ?0.2?

Description

This package provides symbolic names for the ANSI control sequences. For each sequence a single command is provided which returns the sequence as its result. None of the commands of this package write to a channel; that is handled by higher level packages, like term::ansi::send.

API

Introspection

::term::ansi::code::ctrl::names

This command is for introspection. It returns as its result a list containing the names of all attribute commands.

::term::ansi::code::ctrl::import ?ns? ?arg...?

This command imports some or all attribute commands into the namespace ns. This is by default the namespace ctrl. Note that this is relative namespace name, placing the imported command into a child of the current namespace. By default all commands are imported, this can howver be restricted by listing the names of the wanted commands after the namespace argument.

Sequences

::term::ansi::code::ctrl::eeol

Erase (to) End Of Line

::term::ansi::code::ctrl::esol

Erase (to) Start Of Line

::term::ansi::code::ctrl::el

Erase (current) Line

::term::ansi::code::ctrl::ed

Erase Down (to bottom)

::term::ansi::code::ctrl::eu

Erase Up (to top)

::term::ansi::code::ctrl::es

Erase Screen

::term::ansi::code::ctrl::sd

Scroll Down

::term::ansi::code::ctrl::su

Scroll Up

::term::ansi::code::ctrl::ch

Cursor Home

::term::ansi::code::ctrl::sc

Save Cursor

::term::ansi::code::ctrl::rc

Restore Cursor (Unsave)

::term::ansi::code::ctrl::sca

Save Cursor + Attributes

::term::ansi::code::ctrl::rca

Restore Cursor + Attributes

::term::ansi::code::ctrl::st

Set Tab (@ current position)

::term::ansi::code::ctrl::ct

Clear Tab (@ current position)

::term::ansi::code::ctrl::cat

Clear All Tabs

::term::ansi::code::ctrl::qdc

Query Device Code

::term::ansi::code::ctrl::qds

Query Device Status

::term::ansi::code::ctrl::qcp

Query Cursor Position

::term::ansi::code::ctrl::rd

Reset Device

::term::ansi::code::ctrl::elw

Enable Line Wrap

::term::ansi::code::ctrl::dlw

Disable Line Wrap

::term::ansi::code::ctrl::eg

Enter Graphics Mode

::term::ansi::code::ctrl::lg

Exit Graphics Mode

::term::ansi::code::ctrl::scs0 tag

Set default character set

::term::ansi::code::ctrl::scs1 tag

Set alternate character set Select Character Set.

Choose which character set is used for either default (scs0) or alternate font (scs1). This does not change whether default or alternate font are used, only their definition.

The legal tags, and their meanings, are:

A

United Kingdom Set

B

ASCII Set

0

Special Graphics

1

Alternate Character ROM Standard Character Set

2

Alternate Character ROM Special Graphics

::term::ansi::code::ctrl::sda arg...

Set Display Attributes. The arguments are the code sequences for the possible attributes, as provided by the package term::ansi::code::attr. For convenience this package also provides additional commands each setting a single specific attribute.

::term::ansi::code::ctrl::sda_fgblack

Set text color to Black.

::term::ansi::code::ctrl::sda_fgred

Set text color to Red.

::term::ansi::code::ctrl::sda_fggreen

Set text color to Green.

::term::ansi::code::ctrl::sda_fgyellow

Set text color to Yellow.

::term::ansi::code::ctrl::sda_fgblue

Set text color to Blue.

::term::ansi::code::ctrl::sda_fgmagenta

Set text color to Magenta.

::term::ansi::code::ctrl::sda_fgcyan

Set text color to Cyan.

::term::ansi::code::ctrl::sda_fgwhite

Set text color to White.

::term::ansi::code::ctrl::sda_fgdefault

Set default text color (Black).

::term::ansi::code::ctrl::sda_bgblack

Set background to Black.

::term::ansi::code::ctrl::sda_bgred

Set background to Red.

::term::ansi::code::ctrl::sda_bggreen

Set background to Green.

::term::ansi::code::ctrl::sda_bgyellow

Set background to Yellow.

::term::ansi::code::ctrl::sda_bgblue

Set background to Blue.

::term::ansi::code::ctrl::sda_bgmagenta

Set background to Magenta.

::term::ansi::code::ctrl::sda_bgcyan

Set background to Cyan.

::term::ansi::code::ctrl::sda_bgwhite

Set background to White.

::term::ansi::code::ctrl::sda_bgdefault

Set default background (Transparent).

::term::ansi::code::ctrl::sda_bold

Bold on.

::term::ansi::code::ctrl::sda_dim

Dim on.

::term::ansi::code::ctrl::sda_italic

Italics on.

::term::ansi::code::ctrl::sda_underline

Underscore on.

::term::ansi::code::ctrl::sda_blink

Blink on.

::term::ansi::code::ctrl::sda_revers

Reverse on.

::term::ansi::code::ctrl::sda_hidden

Hidden on.

::term::ansi::code::ctrl::sda_strike

Strike-through on.

::term::ansi::code::ctrl::sda_nobold

Bold off.

::term::ansi::code::ctrl::sda_noitalic

Italics off.

::term::ansi::code::ctrl::sda_nounderline

Underscore off.

::term::ansi::code::ctrl::sda_noblink

Blink off.

::term::ansi::code::ctrl::sda_norevers

Reverse off.

::term::ansi::code::ctrl::sda_nohidden

Hidden off.

::term::ansi::code::ctrl::sda_nostrike

Strike-through off.

::term::ansi::code::ctrl::sda_reset

Reset all attributes to their default values.

::term::ansi::send::fcp row col

Force Cursor Position (aka Go To).

::term::ansi::code::ctrl::cu ?n?

Cursor Up. n defaults to 1.

::term::ansi::code::ctrl::cd ?n?

Cursor Down. n defaults to 1.

::term::ansi::code::ctrl::cf ?n?

Cursor Forward. n defaults to 1.

::term::ansi::code::ctrl::cb ?n?

Cursor Backward. n defaults to 1.

::term::ansi::code::ctrl::ss ?s e?

Scroll Screen (entire display, or between rows start end, inclusive).

::term::ansi::code::ctrl::skd code str

Set Key Definition.

::term::ansi::code::ctrl::title str

Set the terminal title.

::term::ansi::code::ctrl::gron

Switch to character/box graphics. I.e. switch to the alternate font.

::term::ansi::code::ctrl::groff

Switch to regular characters. I.e. switch to the default font.

::term::ansi::code::ctrl::tlc

Character graphics, Top Left Corner.

::term::ansi::code::ctrl::trc

Character graphics, Top Right Corner.

::term::ansi::code::ctrl::brc

Character graphics, Bottom Right Corner.

::term::ansi::code::ctrl::blc

Character graphics, Bottom Left Corner.

::term::ansi::code::ctrl::ltj

Character graphics, Left T Junction.

::term::ansi::code::ctrl::ttj

Character graphics, Top T Junction.

::term::ansi::code::ctrl::rtj

Character graphics, Right T Junction.

::term::ansi::code::ctrl::btj

Character graphics, Bottom T Junction.

::term::ansi::code::ctrl::fwj

Character graphics, Four-Way Junction.

::term::ansi::code::ctrl::hl

Character graphics, Horizontal Line.

::term::ansi::code::ctrl::vl

Character graphics, Vertical Line.

::term::ansi::code::ctrl::groptim str

Optimize character graphics. The generator commands above create way to many superfluous commands shifting into and out of the graphics mode. This command removes all shifts which are not needed. To this end it also knows which characters will look the same in both modes, to handle strings created outside of this package.

::term::ansi::code::ctrl::clear

Clear screen. In essence a sequence of CursorHome + EraseDown.

::term::ansi::code::ctrl::init

Initialize default and alternate fonts to ASCII and box graphics.

::term::ansi::code::ctrl::showat row col text

Format the block of text for display at the specified location.

Bugs, Ideas, Feedback

This document, and the package it describes, will undoubtedly contain bugs and other problems. Please report such in the category term of the Tcllib Trackers. Please also report any ideas for enhancements you may have for either package and/or documentation.

When proposing code changes, please provide unified diffs, i.e the output of diff -u.

Note further that attachments are strongly preferred over inlined patches. Attachments can be made by going to the Edit form of the ticket immediately after its creation, and then using the left-most button in the secondary navigation bar.

Category

Terminal control