Module content 

PDF content operators.

This module provides facilities to read and interpret PDF content streams using high-level types.

use hayro_syntax::object::Number;
use hayro_syntax::content::*;
use hayro_syntax::content::ops::*;

let content_stream = b"1 0 0 -1 0 200 cm
0 1.0 0 rg
0 0 m
200 0 l
200 200 l
0 200 l
h
f";

let mut iter = TypedIter::new(content_stream);
assert!(matches!(iter.next(), Some(TypedInstruction::Transform(_))));
assert!(matches!(iter.next(), Some(TypedInstruction::NonStrokeColorDeviceRgb(_))));
assert!(matches!(iter.next(), Some(TypedInstruction::MoveTo(_))));
assert!(matches!(iter.next(), Some(TypedInstruction::LineTo(_))));
assert!(matches!(iter.next(), Some(TypedInstruction::LineTo(_))));
assert!(matches!(iter.next(), Some(TypedInstruction::LineTo(_))));
assert!(matches!(iter.next(), Some(TypedInstruction::ClosePath(_))));
assert!(matches!(iter.next(), Some(TypedInstruction::FillPathNonZero(_))));

Modules

ops

Content stream operators.

Structs

Instruction

An instruction (= operator and its operands) in a content stream.

OperandIterator

An iterator over the operands of an operator.

Operator

A content stream operator.

Stack

A stack holding the arguments of an operator.

TypedIter

An iterator over PDF content streams that provide access to the instructions in a typed fashion.

UntypedIter

An iterator over operators in the PDF content streams, providing raw access to the instructions.