Module layout 

Phase 3: Layout and Soft Wrapping (Headless Layout Engine)

Calculates the visual representation of text given a container width. Computes character widths based on UAX #11 and implements headless reflow algorithm.

Structs

LayoutEngine

Layout engine - manages visual representation of all lines

VisualLineInfo

Visual line information

WrapPoint

Wrap point

Constants

DEFAULT_TAB_WIDTH

Default tab width (in cells) used when a caller does not specify a tab width.

Functions

calculate_wrap_points

Calculate wrap points for text

calculate_wrap_points_with_tab_width

Calculate wrap points for text, interpreting '\t' using tab_width.

cell_width_at

Calculate visual width (in cells) for a character at a specific cell offset within the line.

char_width

Calculate visual width of a character (based on UAX #11)

str_width

Calculate total visual width of a string

str_width_with_tab_width

Calculate total visual width of a string, interpreting '\t' using tab_width.

visual_x_for_column

Calculate the visual cell offset from the start of the line to the given character column.