Crate mathtex_editor_core 

Headless structural math editor core: the host sends commands, reads values, and typesets itself.

Structs

CaretPath

A caret position that survives serialization and editor rebuilds.

Document

A whole document, the unit of persistence and of the clipboard, see the README for its JSON shape.

Editor

A headless structural math editor that never typesets, keeps no history, and has no callbacks.

HostBoxEntry

A host box the caret would have crossed under HostBoxPolicy::Enter.

HostObject

Placement of one host box in the rendered fragment.

InputContext

Facts a keymap needs to interpret the next key.

MenuItem

One row the host renders.

MenuView

The rows and state of the open menu, its anchor rectangle comes from Editor::render.

Metrics

Size of the whole typeset fragment in points.

Outcome

What a command did.

Point

A point in points (scaled points divided by 65536), y grows down from the surface’s top left.

Rect

A rectangle in points, (x, y) is its top left corner with y growing down.

RenderOutput

Everything the host paints on top of the typeset fragment.

Selection

A selection between two carets in the same sequence.

Snapshot

Everything needed to put an editor back into a previous state, the host keeps its own undo stack.

Source

LaTeX for the typesetter plus the spans that map it back to the document.

SpanMap

Opaque byte ranges from document elements into Source::tex, in export order.

StaleSource

A crate::Source exported at another revision or by another editor.

Step

One step down the tree: the child at node in the current sequence, then its slot.

Symbol

A leaf token plus its math class for editing heuristics.

UnderOverSpec

Spec for inserting an under or over construct.

Enums

Command

An editor command.

Deco

Decoration drawn between an under or over label and its base.

Dir

A movement direction.

DocumentError

A rule broken by a document.

Edge

An edge of the whole formula.

ExitDir

A direction in which the caret leaves the formula.

FracStyle

Fraction rendering style.

HostBoxPolicy

How horizontal motion treats host boxes.

Mark

Accent mark type.

MathClass

Math atom classification used by editing heuristics.

MatrixEnv

Matrix environment type.

MenuItemKind

What committing a row does.

NodeDoc

The serialized form of one node.

PathError

Why a path does not address a caret position in the current document.

Repair

One change Document::repair made.

RestoreError

Why Editor::restore refused a snapshot.

ScriptSlot

Script slot selector.

Side

A side relative to a matrix row or column, or the side a host box is approached from.

Slot

A named slot of a structure.

Variant

Font or text variant.

Constants

DOCUMENT_VERSION

The current serialized document format version.

MAX_DEPTH

Deepest allowed slot nesting, sized so a document stays under serde_json’s recursion limit of 128.

MAX_HOST_TOKEN

Largest host box token, since TeX reads the N of \hostbox{N} as an integer of at most 2^31 - 1.