class Foundation::Style

• Foundation::Style
• Reference
• Object

Overview

Build a Select Graphic Rendition (SGR) escape sequence by accumulating parameters. Mutating is chainable, each method appends and returns self.

Defined in:

foundation/sgr.cr

Constructors

• .new

  Create an empty builder with no parameters set.

Instance Method Summary

• #background(color : SGRColor) : self

  Appends a background color resolved to its SGR kind (eg basic/indexed/rgb/default).

• #background_basic(index : UInt8) : self

  Set a basic bg color by index 0..15 (SGR 40-37 / 100-107 bright).

• #background_indexed(index : UInt8) : self

  Sets a 256-color bg by palette index (SGR 48;5;index)

• #background_rgb(r : UInt8, g : UInt8, b : UInt8) : self

  Sets a truecolor bg (SGR 48;2;r;g;b)

• #blink : self

  Enable blink (SGR 5)

• #bold : self

  Enable bold (SGR 1)

• #default_background : self

  Resets the bg to terminal default (SGR 49)

• #default_foreground : self

  Resets fg to terminal default (SGR 39)

• #faint : self

  Enable faint/dim (SGR 2)

• #foreground(color : SGRColor) : self

  Appends a foreground color resolved to its SGR kind (eg basic/indexed/rgb/default).

• #foreground_basic(index : UInt8) : self

  Set a basic fg color by index 0..15 (SGR 30-37 / 90-97 bright).

• #foreground_indexed(index : UInt8) : self

  Sets a 256-color fg by palette index (SGR 38;5;index)

• #foreground_rgb(r : UInt8, g : UInt8, b : UInt8) : self

  Sets a truecolor fg (SGR 38;2;r;g;b)

• #italic : self

  Enable italic (SGR 3)

• #raw(param : String) : self

  Appends a raw SGR parameter as-is, for params that the typed setters don't model.

• #reset : self

  Resets all attributes (SGR 0)

• #reverse : self

  Enable reverse which swaps fg and bg (SGR 7)

• #strikethrough : self

  Enable strikethrough (SGR 9)

• #to_s(io : IO) : Nil

  Renders the accumulated params as a `CSI ...

• #underline : self

  Enable single underline (SGR 4)

• #underline_style(style : Underline) : self

  Enable underline of given substyle (SGR 4:n)

Constructor Detail

Instance Method Detail