Prosemirror

Breaking changes

`schema.nodeSpec` and `schema.markSpec` have been deprecated in favor of [`schema.spec`](https://prosemirror.net/docs/ref/version/0.18.0.html#model.Schema.spec). The properties still work with a warning in this release, but will be dropped in the next.

New features

`Node` objects now have a [`check`](https://prosemirror.net/docs/ref/version/0.18.0.html#model.Node.check) method which can be used to assert that they conform to the schema.

Node specs now support an [`atom` property](https://prosemirror.net/docs/ref/version/0.18.0.html#model.NodeSpec.atom), and nodes an [`isAtom` accessor](https://prosemirror.net/docs/ref/version/0.18.0.html#model.Node.isAtom), which is currently only used to determine whether such nodes should be directly selectable (for example when they are rendered as an uneditable node view).

The new [`excludes`](https://prosemirror.net/docs/ref/version/0.18.0.html#model.MarkSpec.excludes) field on mark specs can be used to control the marks that this mark may coexist with. Mark type objects also gained an [`excludes` _method_](https://prosemirror.net/docs/ref/version/0.18.0.html#model.MarkType.excludes) to querty this relation.

Mark specs now support a [`group`](https://prosemirror.net/docs/ref/version/0.18.0.html#model.MarkSpec.group) property, and marks can be referred to by group name in content specs.

The `Schema` class now provides its whole [spec](https://prosemirror.net/docs/ref/version/0.18.0.html#model.SchemaSpec) under its [`spec`](https://prosemirror.net/docs/ref/version/0.18.0.html#model.Schema.spec) property.

The name of a schema's default top-level node is now [configurable](https://prosemirror.net/docs/ref/version/0.18.0.html#model.SchemaSpec.topNode). You can use [`schema.topNodeType`](https://prosemirror.net/docs/ref/version/0.18.0.html#model.Schema.topNodeType) to retrieve the top node type.

[Parse rules](https://prosemirror.net/docs/ref/version/0.18.0.html#model.ParseRule) now support a [`context` field](https://prosemirror.net/docs/ref/version/0.18.0.html#model.ParseRule.context) that can be used to only make the rule match inside certain ancestor nodes.

Breaking changes

`Node.marksAt` was replaced with [`ResolvedPos.marks`](https://prosemirror.net/docs/ref/version/0.17.0.html#model.ResolvedPos.marks). It still works (with a warning) in this release, but will be removed in the next one.

Breaking changes

`ResolvedPos.atNodeBoundary` is deprecated and will be removed in the next release. Use `textOffset > 0` instead.

New features

Parse rules associated with a schema can now specify a [`priority`](https://prosemirror.net/docs/ref/version/0.15.0.html#model.ParseRule.priority) to influence the order in which they are applied.

Resolved positions have a new getter [`textOffset`](https://prosemirror.net/docs/ref/version/0.15.0.html#model.ResolvedPos.textOffset) to find their position within a text node (if any).

Bug fixes

[`DOMParser.parseSlice`](https://prosemirror.net/docs/ref/version/0.14.0.html#model.DOMParser.parseSlice) will now ignore whitespace-only text nodes at the top of the slice.

New features

Parse rules now support [`skip`](https://prosemirror.net/docs/ref/version/0.14.0.html#model.ParseRule.skip) (skip outer element, parse content) and [`getContent`](https://prosemirror.net/docs/ref/version/0.14.0.html#model.ParseRule.getContent) (compute content using custom code) properties.

The `DOMSerializer` class now exports a static [`renderSpec`](https://prosemirror.net/docs/ref/version/0.14.0.html#model.DOMSerializer^renderSpec) method that can help render DOM spec arrays.

Breaking changes

`ResolvedPos.sameDepth` is now called [`ResolvedPos.sharedDepth`](https://prosemirror.net/docs/ref/version/0.13.0.html#model.ResolvedPos.sharedDepth), and takes a raw, unresolved position as argument.

New features

[`DOMSerializer`](https://prosemirror.net/docs/ref/version/0.13.0.html#model.DOMSerializer)'s `nodes` and `marks` properties are now public.

[`ContentMatch.findWrapping`](https://prosemirror.net/docs/ref/version/0.13.0.html#model.ContentMatch.findWrapping) now takes a third argument, `marks`. There's a new method [`findWrappingFor`](https://prosemirror.net/docs/ref/version/0.13.0.html#model.ContentMatch.findWrappingFor) that accepts a whole node.

Adds [`Slice.maxOpen`](https://prosemirror.net/docs/ref/version/0.13.0.html#model.Slice^maxOpen) static method to create maximally open slices.

DOM parser objects now have a [`parseSlice`](https://prosemirror.net/docs/ref/version/0.13.0.html#model.DOMParser.parseSlice) method which parses an HTML fragment into a [`Slice`](https://prosemirror.net/docs/ref/version/0.13.0.html#model.Slice), rather than trying to create a whole document from it.