Struct CsTable 

pub struct CsTable { /* private fields */ }

The control-sequence table.

Implementations

impl CsTable

pub fn new() -> Self

A table containing only NO_CS, NULL_CS and UNDEFINED_CS.

pub fn len(&self) -> usize

Number of ids allocated so far.

pub fn is_empty(&self) -> bool

Whether the table is empty (never true: three ids are preallocated).

pub fn lookup_or_insert(&mut self, name: &[u8]) -> CsId

Looks a name up, creating the control sequence if necessary.

pub fn lookup(&self, name: &[u8]) -> Option<CsId>

Looks a name up without creating it.

pub fn active(&mut self, c: u32) -> CsId

The id of active character c, creating it if necessary.

pub fn lookup_active(&self, c: u32) -> Option<CsId>

The id of active character c, if it exists.

pub fn single(&mut self, c: u32) -> CsId

The id of the single-character control sequence \c.

pub fn new_internal(&mut self, name: &[u8]) -> CsId

Allocates an internal control sequence printed as the bare name.

pub fn new_frozen(&mut self, name: &[u8]) -> CsId

Allocates a frozen control sequence printed as name.

pub fn name(&self, id: CsId) -> &[u8]

The name of a control sequence (for active characters: the character’s encoding).

pub fn kind(&self, id: CsId) -> &CsKind

The kind of a control sequence.

pub fn contains(&self, id: CsId) -> bool

Whether id names an entry of the table.

pub fn entries(&self) -> impl Iterator<Item = (&[u8], &CsKind)>

All entries as (name, kind) in id order, for format dumping.

pub fn from_entries(entries: Vec<(Box<[u8]>, CsKind)>) -> CsTable

Rebuilds a table from dumped entries (the inverse of entries).

pub fn iter_named(&self) -> impl Iterator<Item = (&[u8], CsId)>

Iterates over all (name, id) pairs that can be looked up by name (excluding active characters).

Trait Implementations

impl Clone for CsTable

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 CsTable

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

Formats the value using the given formatter.

impl Default for CsTable

fn default() -> Self

Returns the “default value” for a type.