Module charstring 

Parsing and evaluation of charstrings.

Structs

ControlBoundsSink

Sink that measures the box a drawing stays within.

Evaluator 🔒

Transient state for evaluating a charstring and handling recursive subroutine calls.

NopFilterSink

Command sink adapter that suppresses degenerate move and line commands.

NullSink

Sink that drops all drawing output into the ether.

TransformSink

Command sink adapter that applies a matrix and optional scale.

Enums

CharstringKind

The type of a PostScript charstring.

Operator 🔒

PostScript charstring operator.

PendingElement 🔒

PointMode 🔒

Specifies how point coordinates for a curve are computed.

SeacMode 🔒

Specifies how the seac operation was invoked.

Constants

INLINE_BUILD_CHAR_LEN 🔒

The number of elements of a multiple master font’s BuildCharArray held inline. A font that declares a longer array has it on the heap.

MAX_OPERATIONS 🔒

Maximum number of operations that can be processed during charstring evaluation.

NESTING_DEPTH_LIMIT

Maximum nesting depth for subroutine calls.

ONE_OVER_64 🔒

STORAGE_SIZE 🔒

Size of the transient array that put and get address.

Traits

CharstringContext

Trait that provides context for charstring evaluation.

CommandSink

Trait for processing commands resulting from charstring evaluation.

Functions

evaluate

Evaluates the given charstring and emits the resulting commands to the specified sink.

evaluate_width

Returns the advance width the charstring states, without drawing it.

fixed_sqrt 🔒

The square root of value, by the method FreeType uses.