Crate rustyfi_backend 

Box/glue model, typesetting context, line and page breaking — the port of upstream src/backend/.

Re-exports

pub use context::default_script_space_map;

pub use context::Context;

pub use context::HyphenLang;

pub use context::Language;

pub use context::MathCmdId;

pub use context::MathScriptLevel;

pub use context::PageGeometry;

pub use context::PaperSize;

pub use context::Script;

pub use context::ScriptFont;

pub use doc::Annot;

pub use doc::AnnotAction;

pub use doc::DocExtras;

pub use doc::DocInfo;

pub use doc::NamedDest;

pub use doc::OutlineEntry;

pub use font::char_script;

pub use font::FontKey;

pub use font::FontMetrics;

pub use font::MathConstants;

pub use font::MathCorner;

pub use font::MathVariantGlyph;

pub use font::VertVariantPolicy;

pub use graphics::graphics_bbox;

pub use graphics::linear_transform_graphics;

pub use graphics::linear_transform_path;

pub use graphics::path_bbox;

pub use graphics::shift_graphics;

pub use graphics::shift_path;

pub use graphics::Closing;

pub use graphics::Color;

pub use graphics::Dash;

pub use graphics::FrameDecoration;

pub use graphics::GraphicsElem;

pub use graphics::Path;

pub use graphics::PathSeg;

pub use graphics::Point;

pub use graphics::PrePath;

pub use graphics::Subpath;

pub use hbox::DecoId;

pub use hbox::GraphicsFnId;

pub use hbox::HookId;

pub use hbox::HorzBox;

pub use hbox::HorzStringInfo;

pub use hbox::ImageId;

pub use hbox::ImageResource;

pub use hbox::ImportedObjects;

pub use hbox::InlineMarkKind;

pub use hbox::JpegDct;

pub use hbox::ObjRepr;

pub use hbox::PdfPageResource;

pub use hbox::PureHorzBox;

pub use hbox::FORCED_BREAK_PENALTY;

pub use hbox::NO_BREAK_PENALTY;

pub use length::Length;

pub use linebreak::break_into_lines;

pub use linebreak::break_opportunities;

pub use linebreak::fit_cell;

pub use linebreak::measure_block;

pub use linebreak::natural_metrics;

pub use linebreak::BreakKind;

pub use math::default_math_variant_char;

pub use math::MathCharClass;

pub use math::MathGlyph;

pub use math::MathKind;

pub use pagebreak::chop_page;

pub use pagebreak::place_block_at;

pub use pagebreak::placed_line_extent;

pub use pagebreak::Page;

pub use pagebreak::PlacedLine;

pub use pagebreak::MIN_FIRST_ASCENDER;

pub use tabular::Cell;

pub use tabular::Paddings;

pub use tabular::TabularBox;

pub use tabular::TabularCellBox;

pub use vbox::ListMarkKind;

pub use vbox::VertBox;

Modules

context

doc

Document-level PDF extras: link annotations, named destinations, the outline (bookmark) tree, and per-page decoration-graphics overlays. Pure data — accumulated lang-side (Interp, during fire_hooks), carried on DocumentValue::extras, emitted by both PDF writers. Upstream: annotation.ml / namedDest.ml / outline.ml.

font

graphics

The drawing data model — paths, colors, and graphics elements; the analog of upstream’s GraphicBase/PrePath/GraphicD. Everything here is already-resolved coordinates/data: no lang-side closure or deferred computation crosses into this module.

hbox

length

linebreak

Paragraph breaking. Knuth–Plass optimal line breaking over glue and discretionary breakpoints. The input model (a flat Vec<HorzBox> of strings, glue and discretionaries) matches what lineBreak.ml consumes.

math

Math value / box model: trimmed analog of math.ml’s math_kind (horzBox.ml:134) and low_math_atom (math.ml:9).

pagebreak

Page breaking: a stateless per-page chopper (chop_page) plus a fixed-origin placement helper (place_block_at). The per-page loop lives lang-side (primitives.rs’s prim_page_break), the one place that legally holds &mut Interp to apply the two scheme closures per page.

tabular

The tabular grid solver: row/column metrics, MultiCell span bookkeeping, and cell content fitting. A faithful port of v0.0.6’s src/backend/tabular.ml (main/determine_row_metrics/ determine_column_width/normalize_tabular/transpose_tabular/ solidify_tabular, cited by name below), adapted two ways:

vbox

visit

One generated, exhaustive traversal of the placed-box tree.