Struct ContentEditor 

pub struct ContentEditor { /* private fields */ }

Editor for PDF content stream operations.

Decodes a raw content stream into Vec<Operation>, allows mutation (remove, replace, insert), and encodes back to bytes.

Implementations

impl ContentEditor

pub fn from_stream(stream: &[u8]) -> Result<Self>

Decode a content stream from raw bytes.

Returns Err if the stream has pathological array nesting (depth > MAX_CONTENT_ARRAY_DEPTH) to avoid a stack overflow in lopdf’s recursive array parser. All callers handle Err gracefully (skip/continue).

pub fn from_operations(operations: Vec<Operation>) -> Self

Create an editor from a pre-existing list of operations.

pub fn new() -> Self

Create an empty editor.

pub fn operations(&self) -> &[Operation]

Return a reference to the operations.

pub fn operations_mut(&mut self) -> &mut Vec<Operation>

Return a mutable reference to the operations.

pub fn len(&self) -> usize

Number of operations.

pub fn is_empty(&self) -> bool

Whether the editor has no operations.

pub fn remove_range(&mut self, range: Range<usize>)

Remove operations in the given range.

pub fn replace_operation(&mut self, index: usize, ops: Vec<Operation>)

Replace the operation at index with one or more operations.

pub fn insert_operations(&mut self, at: usize, ops: Vec<Operation>)

Insert operations at the given position.

pub fn push(&mut self, op: Operation)

Append operations at the end.

pub fn retain<F>(&mut self, f: F)

where F: FnMut(&Operation) -> bool,

Remove all operations matching a predicate.

pub fn encode(&self) -> Result<Vec<u8>>

Encode operations back to content stream bytes.

Uses custom encoding for inline images (BI/ID/EI), because lopdf’s Content::encode() incorrectly serializes them as regular stream objects.

pub fn encode_compressed(&self) -> Result<Vec<u8>>

Encode and compress with flate.

pub fn track_state(&self) -> GraphicsStateTracker

Build a GraphicsStateTracker that walks all operations and records the graphics state at each operation index.

Trait Implementations

impl Clone for ContentEditor

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ContentEditor

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ContentEditor

fn default() -> Self

Returns the “default value” for a type.