typeset

const (
	// MinFontSize is the smallest font size in points that survives three-decimal output.
	MinFontSize = 0.01
	// MaxFontSize equals the largest generated page side.
	MaxFontSize = 14400.0
	// MinPageSide bounds a generated page side from below, in points.
	MinPageSide = 1.0
	// MaxPageSide bounds a generated page side from above, in points.
	MaxPageSide = 14400.0
	// MaxOffset bounds the absolute x and y offsets and the wrap width in points.
	MaxOffset = 1e6
	// MaxLineSpacing bounds the line spacing multiplier.
	MaxLineSpacing = 100.0

	// AnchorTopLeft places the block's top-left corner on the page's. The nine anchors run row by row from
	// here to AnchorBottomRight; the block's matching point is placed on the page's.
	AnchorTopLeft Anchor = 0
	// AnchorTopCenter anchors the middle of the block's top edge to the middle of the page's.
	AnchorTopCenter Anchor = 1
	// AnchorTopRight anchors the block's top-right corner to the page's.
	AnchorTopRight Anchor = 2
	// AnchorMiddleLeft anchors the middle of the block's left edge to the middle of the page's.
	AnchorMiddleLeft Anchor = 3
	// AnchorCenter anchors the block's center to the page's.
	AnchorCenter Anchor = 4
	// AnchorMiddleRight anchors the middle of the block's right edge to the middle of the page's.
	AnchorMiddleRight Anchor = 5
	// AnchorBottomLeft anchors the block's bottom-left corner to the page's.
	AnchorBottomLeft Anchor = 6
	// AnchorBottomCenter anchors the middle of the block's bottom edge to the middle of the page's.
	AnchorBottomCenter Anchor = 7
	// AnchorBottomRight anchors the block's bottom-right corner to the page's.
	AnchorBottomRight Anchor = 8

	// AlignLeft aligns lines to the block's left edge. The alignments act inside the block.
	AlignLeft Align = 0
	// AlignCenter centers lines in the block.
	AlignCenter Align = 1
	// AlignRight aligns lines to the block's right edge.
	AlignRight Align = 2
	// AlignJustify spreads interior U+0020 spaces so a wrapped line fills the block; the last line of
	// each paragraph stays left-aligned.
	AlignJustify Align = 3

	// OverflowReject turns findings into an error (the plan value "error").
	OverflowReject OverflowPolicy = 0
	// OverflowAllow reports findings and succeeds.
	OverflowAllow OverflowPolicy = 1

	// FindingWordTooWide means a line, necessarily a single unbreakable word, is wider than the wrap width.
	FindingWordTooWide FindingKind = "word-wider-than-box"
	// FindingOutsidePageHorizontal means the block leaves the page on the left or right.
	FindingOutsidePageHorizontal FindingKind = "outside-page-horizontal"
	// FindingOutsidePageVertical means the block leaves the page on the top or bottom (vertical overflow).
	FindingOutsidePageVertical FindingKind = "outside-page-vertical"
)

const DefaultFontName = "Noto Sans"

const (
	// MaxTextRunes bounds the text of one block, so wrapping and shaping memory stays proportional to it.
	MaxTextRunes = 100_000
)