class Opal::Asciicast::Writer

• Opal::Asciicast::Writer
• Reference
• Object

Overview

Generates standard Asciinema v2 format recordings (.cast). Spec: https://github.com/asciinema/asciinema/blob/develop/doc/asciicast-v2.md

Defined in:

opal/asciicast/writer.cr

Constructors

• .new(width : Int32 = 80, height : Int32 = 24, title : String = "Opal Demo", term : String = "xterm-256color", shell : String = "/bin/bash", theme : Hash(String, String) | Nil = nil, idle_time_limit : Float64 | Nil = nil)

Instance Method Summary

• #clear_screen(advance : Float64 = 0.02) : Nil

  Clears the terminal screen and homes the cursor

• #current_time : Float64
• #draw_buffer(buf : UI::Buffer, advance : Float64 = 0.05) : Nil

  Draws a full Buffer into the cast without clearing the screen, ensuring flicker-free terminal updates with full ANSI color styling.

• #elapsed : Float64
• #events : Array(Event)
• #header : Header
• #height : Int32
• #move_to(row : Int32, col : Int32, advance : Float64 = 0.01) : Nil

  Moves cursor to row, col

• #pause(seconds : Float64) : Nil

  Pauses playback by advancing elapsed time

• #save(filename : String) : Nil

  Saves the asciicast file (UTF-8 without BOM)

• #title : String
• #to_s(io : IO) : Nil

  Generates the complete .cast file contents as a string

• #type_text(text : String, cps : Float64 = 16.0, jitter : Float64 = 0.02) : Nil

  Simulates human typing cadence for a string

• #width : Int32
• #write(data : String, advance : Float64 = 0.05) : Nil

  Writes an output event [time, "o", data] with a time advance

• #write_input(data : String, advance : Float64 = 0.0) : Nil

  Writes an input event [time, "i", data]

• #write_marker(label : String, advance : Float64 = 0.0) : Nil

  Writes a marker event [time, "m", label]

Constructor Detail

Instance Method Detail