class Termisu::Terminfo

• Termisu::Terminfo
• Reference
• Object

Overview

Terminfo database interface for terminal capability management.

Provides access to terminal control sequences by loading capabilities from the system terminfo database with fallback to hardcoded values for common terminals (xterm, linux).

Loading Strategy

1. Attempts to load capabilities from terminfo database at standard locations
2. Falls back to built-in escape sequences for xterm/linux if database unavailable
3. Merges database values with builtins, preferring database values

Usage

terminfo = Termisu::Terminfo.new
puts terminfo.clear_screen_seq # => "\e[H\e[2J"
puts terminfo.bold_seq         # => "\e[1m"

Note: All capability methods return escape sequence STRINGS, not actions. The _seq suffix indicates this clearly.

Defined in:

termisu/terminfo.cr

Constant Summary

Log = Termisu::Logs::Terminfo

Constructors

• .new

Instance Method Summary

• #background_color_seq(color_index : Int32) : String

  Returns escape sequence to set background color.

• #blink_seq : String

  Returns escape sequence to enable blink (blink).

• #bold_seq : String

  Returns escape sequence to enable bold (bold).

• #clear_screen_seq : String

  Returns escape sequence to clear screen (clear).

• #column_address_seq(col : Int32) : String

  Returns escape sequence to move cursor to column N (0-based).

• #cup_seq : String

  Returns the raw cup capability string (parametrized).

• #cursor_backward_seq(n : Int32) : String

  Returns escape sequence to move cursor backward N columns.

• #cursor_down_seq(n : Int32) : String

  Returns escape sequence to move cursor down N rows.

• #cursor_forward_seq(n : Int32) : String

  Returns escape sequence to move cursor forward N columns.

• #cursor_position_seq(row : Int32, col : Int32) : String

  Returns escape sequence to move cursor to position (row, col).

• #cursor_up_seq(n : Int32) : String

  Returns escape sequence to move cursor up N rows.

• #delete_lines_seq(n : Int32) : String

  Returns escape sequence to delete N lines at cursor.

• #dim_seq : String

  Returns escape sequence to enable dim/faint mode (dim).

• #enter_ca_seq : String

  Returns escape sequence to enter alternate screen (smcup).

• #enter_keypad_seq : String

  Returns escape sequence to enter keypad mode (smkx).

• #erase_chars_seq(n : Int32) : String

  Returns escape sequence to erase N characters at cursor.

• #exit_ca_seq : String

  Returns escape sequence to exit alternate screen (rmcup).

• #exit_keypad_seq : String

  Returns escape sequence to exit keypad mode (rmkx).

• #foreground_color_seq(color_index : Int32) : String

  Returns escape sequence to set foreground color.

• #hidden_seq : String

  Returns escape sequence to enable hidden/invisible mode (invis).

• #hide_cursor_seq : String

  Returns escape sequence to hide cursor (civis).

• #insert_lines_seq(n : Int32) : String

  Returns escape sequence to insert N blank lines at cursor.

• #italic_seq : String

  Returns escape sequence to enable italic/cursive mode (sitm).

• #reset_attrs_seq : String

  Returns escape sequence to reset all attributes (sgr0).

• #reverse_seq : String

  Returns escape sequence to enable reverse video (rev).

• #row_address_seq(row : Int32) : String

  Returns escape sequence to move cursor to row N (0-based).

• #setab_seq : String

  Returns the raw setab capability string (parametrized background color).

• #setaf_seq : String

  Returns the raw setaf capability string (parametrized foreground color).

• #show_cursor_seq : String

  Returns escape sequence to show cursor (cnorm).

• #strikethrough_seq : String

  Returns escape sequence to enable strikethrough mode (smxx).

• #underline_seq : String

  Returns escape sequence to enable underline (smul).

Constructor Detail

Instance Method Detail