Glyphs

Instance Method

decomposeBracketLayersSubstitutions(_:)decomposeBracketLayersSubstitutions:error:decomposeBracketLayersSubstitutions_error_

Separates Alternative layer groups into glyphs for variable-font substitution.

func decomposeBracketLayersSubstitutions(_ substitutions: NSMutableArray!) throws -> [Any]
- (NSArray *) decomposeBracketLayersSubstitutions:(NSMutableArray *) substitutions error:(NSError **) error;
decomposeBracketLayersSubstitutions_error_(substitutions: list) -> tuple[list, NSError]

Parameters

substitutions

A collection to which the substitution rules are appended.

Parameters

substitutions

A collection to which the substitution rules are appended.

error

On return, an error that prevented the layer groups from being separated.

Return Value

The added glyphs, an empty array when no separation is needed, or nil on failure.

Discussion

The receiver retains its first layer group. Other Alternative layer groups become returned glyphs, including required variants of composite glyphs.

See Also

Curve Conversion