Elixir

v1.7.4

Elixir

Elixir v1.7.4 IO.ANSI View Source

Functionality to render ANSI escape sequences.

ANSI escape sequences are characters embedded in text used to control formatting, color, and other output options on video text terminals.

Link to this section Summary

Types

ansicode()
ansidata()
ansilist()

Functions

black()

Sets foreground color to black

black_background()

Sets background color to black

blink_off()

Blink: off

blink_rapid()

Blink: rapid. MS-DOS ANSI.SYS; 150 per minute or more; not widely supported

blink_slow()

Blink: slow. Less than 150 per minute

blue()

Sets foreground color to blue

blue_background()

Sets background color to blue

bright()

Bright (increased intensity) or bold

clear()

Clears screen

clear_line()

Clears line

color(code)

Sets foreground color

color(r, g, b)

Sets the foreground color from individual RGB values

color_background(code)

Sets background color

color_background(r, g, b)

Sets the background color from individual RGB values

conceal()

Conceal. Not widely supported

crossed_out()

Crossed-out. Characters legible, but marked for deletion. Not widely supported

cursor(line, column)

Sends cursor to the absolute position specified by line and column

cursor_down(lines \\ 1)

Sends cursor lines down

cursor_left(columns \\ 1)

Sends cursor columns to the left

cursor_right(columns \\ 1)

Sends cursor columns to the right

cursor_up(lines \\ 1)

Sends cursor lines up

cyan()

Sets foreground color to cyan

cyan_background()

Sets background color to cyan

default_background()

Default background color

default_color()

Default text color

enabled?()

Checks if ANSI coloring is supported and enabled on this machine

encircled()

Encircled

faint()

Faint (decreased intensity). Not widely supported

font_1()

Sets alternative font 1

font_2()

Sets alternative font 2

font_3()

Sets alternative font 3

font_4()

Sets alternative font 4

font_5()

Sets alternative font 5

font_6()

Sets alternative font 6

font_7()

Sets alternative font 7

font_8()

Sets alternative font 8

font_9()

Sets alternative font 9

format(chardata, emit? \\ enabled?())

Formats a chardata-like argument by converting named ANSI sequences into actual ANSI codes

format_fragment(chardata, emit? \\ enabled?())

Formats a chardata-like argument by converting named ANSI sequences into actual ANSI codes

framed()

Framed

green()

Sets foreground color to green

green_background()

Sets background color to green

home()

Sends cursor home

inverse()

Image: negative. Swap foreground and background

inverse_off()

Image: positive. Normal foreground and background

italic()

Italic: on. Not widely supported. Sometimes treated as inverse

light_black()

Sets foreground color to light black

light_black_background()

Sets background color to light black

light_blue()

Sets foreground color to light blue

light_blue_background()

Sets background color to light blue

light_cyan()

Sets foreground color to light cyan

light_cyan_background()

Sets background color to light cyan

light_green()

Sets foreground color to light green

light_green_background()

Sets background color to light green

light_magenta()

Sets foreground color to light magenta

light_magenta_background()

Sets background color to light magenta

light_red()

Sets foreground color to light red

light_red_background()

Sets background color to light red

light_white()

Sets foreground color to light white

light_white_background()

Sets background color to light white

light_yellow()

Sets foreground color to light yellow

light_yellow_background()

Sets background color to light yellow

magenta()

Sets foreground color to magenta

magenta_background()

Sets background color to magenta

no_underline()

Underline: none

normal()

Normal color or intensity

not_framed_encircled()

Not framed or encircled

not_italic()

Not italic

not_overlined()

Not overlined

overlined()

Overlined

primary_font()

Sets primary (default) font

red()

Sets foreground color to red

red_background()

Sets background color to red

reset()

Resets all attributes

reverse()

Image: negative. Swap foreground and background

reverse_off()

Image: positive. Normal foreground and background

underline()

Underline: single

white()

Sets foreground color to white

white_background()

Sets background color to white

yellow()

Sets foreground color to yellow

yellow_background()

Sets background color to yellow

Link to this section Types

Link to this type ansicode() View Source 
ansicode() :: atom()
Link to this type ansidata() View Source 
ansidata() :: ansilist() | ansicode() | binary()

Link to this section Functions

Link to this function black() View Source

Sets foreground color to black.

Link to this function black_background() View Source

Sets background color to black.

Link to this function blue() View Source

Sets foreground color to blue.

Link to this function blue_background() View Source

Sets background color to blue.

Link to this function bright() View Source

Bright (increased intensity) or bold.

Link to this function clear_line() View Source

Clears line.

Link to this function color(code) View Source 
color(0..255) :: String.t()

Sets foreground color.

Link to this function color(r, g, b) View Source 
color(0..5, 0..5, 0..5) :: String.t()

Sets the foreground color from individual RGB values.

Valid values for each color are in the range 0 to 5.

Link to this function color_background(code) View Source 
color_background(0..255) :: String.t()

Sets background color.

Link to this function color_background(r, g, b) View Source 
color_background(0..5, 0..5, 0..5) :: String.t()

Sets the background color from individual RGB values.

Valid values for each color are in the range 0 to 5.

Link to this function conceal() View Source

Conceal. Not widely supported.

Link to this function crossed_out() View Source

Crossed-out. Characters legible, but marked for deletion. Not widely supported.

Link to this function cursor(line, column) View Source 
cursor(non_neg_integer(), non_neg_integer()) :: String.t()

Sends cursor to the absolute position specified by line and column.

Line 0 and column 0 would mean the top left corner.

Link to this function cursor_down(lines \\ 1) View Source 
cursor_down(pos_integer()) :: String.t()

Sends cursor lines down.

Link to this function cursor_left(columns \\ 1) View Source 
cursor_left(pos_integer()) :: String.t()

Sends cursor columns to the left.

Link to this function cursor_right(columns \\ 1) View Source 
cursor_right(pos_integer()) :: String.t()

Sends cursor columns to the right.

Link to this function cursor_up(lines \\ 1) View Source 
cursor_up(pos_integer()) :: String.t()

Sends cursor lines up.

Link to this function cyan() View Source

Sets foreground color to cyan.

Link to this function cyan_background() View Source

Sets background color to cyan.

Link to this function default_background() View Source

Default background color.

Link to this function default_color() View Source

Default text color.

Link to this function enabled?() View Source 
enabled?() :: boolean()

Checks if ANSI coloring is supported and enabled on this machine.

This function simply reads the configuration value for :ansi_enabled in the :elixir application. The value is by default false unless Elixir can detect during startup that both stdout and stderr are terminals.

Link to this function faint() View Source

Faint (decreased intensity). Not widely supported.

Link to this function font_1() View Source

Sets alternative font 1.

Link to this function font_2() View Source

Sets alternative font 2.

Link to this function font_3() View Source

Sets alternative font 3.

Link to this function font_4() View Source

Sets alternative font 4.

Link to this function font_5() View Source

Sets alternative font 5.

Link to this function font_6() View Source

Sets alternative font 6.

Link to this function font_7() View Source

Sets alternative font 7.

Link to this function font_8() View Source

Sets alternative font 8.

Link to this function font_9() View Source

Sets alternative font 9.

Link to this function format(chardata, emit? \\ enabled?()) View Source

Formats a chardata-like argument by converting named ANSI sequences into actual ANSI codes.

The named sequences are represented by atoms.

It will also append an IO.ANSI.reset/0 to the chardata when a conversion is performed. If you don’t want this behaviour, use format_fragment/2.

An optional boolean parameter can be passed to enable or disable emitting actual ANSI codes. When false, no ANSI codes will emitted. By default checks if ANSI is enabled using the enabled?/0 function.

Examples 

iex> IO.ANSI.format(["Hello, ", :red, :bright, "world!"], true)
[[[[[[], "Hello, "] | "\e[31m"] | "\e[1m"], "world!"] | "\e[0m"]
Link to this function format_fragment(chardata, emit? \\ enabled?()) View Source

Formats a chardata-like argument by converting named ANSI sequences into actual ANSI codes.

The named sequences are represented by atoms.

An optional boolean parameter can be passed to enable or disable emitting actual ANSI codes. When false, no ANSI codes will emitted. By default checks if ANSI is enabled using the enabled?/0 function.

Examples 

iex> IO.ANSI.format_fragment([:bright, 'Word'], true)
[[[[[[] | "\e[1m"], 87], 111], 114], 100]
Link to this function green() View Source

Sets foreground color to green.

Link to this function green_background() View Source

Sets background color to green.

Link to this function home() View Source

Sends cursor home.

Link to this function inverse() View Source

Image: negative. Swap foreground and background.

Link to this function inverse_off() View Source

Image: positive. Normal foreground and background.

Link to this function italic() View Source

Italic: on. Not widely supported. Sometimes treated as inverse.

Link to this function light_black() View Source

Sets foreground color to light black.

Link to this function light_black_background() View Source

Sets background color to light black.

Link to this function light_blue() View Source

Sets foreground color to light blue.

Link to this function light_blue_background() View Source

Sets background color to light blue.

Link to this function light_cyan() View Source

Sets foreground color to light cyan.

Link to this function light_cyan_background() View Source

Sets background color to light cyan.

Link to this function light_green() View Source

Sets foreground color to light green.

Link to this function light_green_background() View Source

Sets background color to light green.

Link to this function light_magenta() View Source

Sets foreground color to light magenta.

Link to this function light_magenta_background() View Source

Sets background color to light magenta.

Link to this function light_red() View Source

Sets foreground color to light red.

Link to this function light_red_background() View Source

Sets background color to light red.

Link to this function light_white() View Source

Sets foreground color to light white.

Link to this function light_white_background() View Source

Sets background color to light white.

Link to this function light_yellow() View Source

Sets foreground color to light yellow.

Link to this function light_yellow_background() View Source

Sets background color to light yellow.

Link to this function magenta() View Source

Sets foreground color to magenta.

Link to this function magenta_background() View Source

Sets background color to magenta.

Link to this function no_underline() View Source

Underline: none.

Link to this function normal() View Source

Normal color or intensity.

Link to this function not_framed_encircled() View Source

Not framed or encircled.

Link to this function not_italic() View Source

Not italic.

Link to this function not_overlined() View Source

Not overlined.

Link to this function primary_font() View Source

Sets primary (default) font.

Link to this function red() View Source

Sets foreground color to red.

Link to this function red_background() View Source

Sets background color to red.

Link to this function reset() View Source

Resets all attributes.

Link to this function reverse() View Source

Image: negative. Swap foreground and background.

Link to this function reverse_off() View Source

Image: positive. Normal foreground and background.

Link to this function underline() View Source

Underline: single.

Link to this function white() View Source

Sets foreground color to white.

Link to this function white_background() View Source

Sets background color to white.

Link to this function yellow() View Source

Sets foreground color to yellow.

Link to this function yellow_background() View Source

Sets background color to yellow.