module RatatuiRuby::Symbols::Line

Box-drawing characters for borders and lines.

Terminal UIs need consistent box-drawing characters for borders and dividers. Memorizing Unicode box-drawing characters is tedious and error-prone.

This module exposes both individual characters and predefined sets. Use the sets with widgets that accept a line_set parameter, or use individual characters for custom drawing.

Examples

# Use a predefined set for drawing boxes
line_set = Symbols::Line::ROUNDED

# Draw a simple frame
top = "#{line_set[:top_left]}#{line_set[:horizontal] * 10}#{line_set[:top_right]}"
mid = "#{line_set[:vertical]}#{' ' * 10}#{line_set[:vertical]}"
bot = "#{line_set[:bottom_left]}#{line_set[:horizontal] * 10}#{line_set[:bottom_right]}"

# Use individual characters for custom drawing
corner = Symbols::Line::ROUNDED_TOP_LEFT  # => "╭"

Constants

BOTTOM_LEFT: Standard bottom-left corner.
BOTTOM_RIGHT: Standard bottom-right corner.
CROSS: Standard cross (4-way intersection).
DOUBLE: Double-line box-drawing set.
DOUBLE_BOTTOM_LEFT: Double bottom-left corner.
DOUBLE_BOTTOM_RIGHT: Double bottom-right corner.
DOUBLE_CROSS: Double cross (4-way intersection).
DOUBLE_HORIZONTAL: Double horizontal line.
DOUBLE_HORIZONTAL_DOWN: Double T-junction pointing down.
DOUBLE_HORIZONTAL_UP: Double T-junction pointing up.
DOUBLE_TOP_LEFT: Double top-left corner.
DOUBLE_TOP_RIGHT: Double top-right corner.
DOUBLE_VERTICAL: Double vertical line.
DOUBLE_VERTICAL_LEFT: Double T-junction pointing left.
DOUBLE_VERTICAL_RIGHT: Double T-junction pointing right.
HORIZONTAL: Standard horizontal line.
HORIZONTAL_DOWN: Standard T-junction pointing down.
HORIZONTAL_UP: Standard T-junction pointing up.
NORMAL: Standard box-drawing set with straight corners.
ROUNDED: Box-drawing set with rounded corners.
ROUNDED_BOTTOM_LEFT: Rounded bottom-left corner.
ROUNDED_BOTTOM_RIGHT: Rounded bottom-right corner.
ROUNDED_TOP_LEFT: Rounded top-left corner.
ROUNDED_TOP_RIGHT: Rounded top-right corner.
THICK: Thick (heavy) box-drawing set.
THICK_BOTTOM_LEFT: Thick bottom-left corner.
THICK_BOTTOM_RIGHT: Thick bottom-right corner.
THICK_CROSS: Thick cross (4-way intersection).
THICK_HORIZONTAL: Thick (heavy) horizontal line.
THICK_HORIZONTAL_DOWN: Thick T-junction pointing down.
THICK_HORIZONTAL_UP: Thick T-junction pointing up.
THICK_TOP_LEFT: Thick top-left corner.
THICK_TOP_RIGHT: Thick top-right corner.
THICK_VERTICAL: Thick (heavy) vertical line.
THICK_VERTICAL_LEFT: Thick T-junction pointing left.
THICK_VERTICAL_RIGHT: Thick T-junction pointing right.
TOP_LEFT: Standard top-left corner.
TOP_RIGHT: Standard top-right corner.
VERTICAL: Standard vertical line.
VERTICAL_LEFT: Standard T-junction pointing left.
VERTICAL_RIGHT: Standard T-junction pointing right.