Struct lrlex::LRNonStreamingLexerDef

pub struct LRNonStreamingLexerDef<LexerTypesT: LexerTypes>where
    usize: AsPrimitive<LexerTypesT::StorageT>,{ /* private fields */ }

This struct represents, in essence, a .l file in memory. From it one can produce an LRNonStreamingLexer which actually lexes inputs.

Implementations

impl<StorageT: 'static + Debug + Hash + PrimInt + Unsigned, LexerTypesT: LexerTypes<StorageT = StorageT>> LRNonStreamingLexerDef<LexerTypesT>where
    usize: AsPrimitive<StorageT>,
    LexerTypesT::StorageT: TryFrom<usize>,

pub fn new_with_options(
    s: &str,
    re_opts: RegexOptions
) -> LexBuildResult<LRNonStreamingLexerDef<LexerTypesT>>

pub fn lexer<'lexer, 'input: 'lexer>(
    &'lexer self,
    s: &'input str
) -> LRNonStreamingLexer<'lexer, 'input, LexerTypesT>

Return an LRNonStreamingLexer for the String s that will lex relative to this LRNonStreamingLexerDef.

Trait Implementations

impl<LexerTypesT: LexerTypes> LexerDef<LexerTypesT> for LRNonStreamingLexerDef<LexerTypesT>where
    usize: AsPrimitive<LexerTypesT::StorageT>,
    LexerTypesT::StorageT: TryFrom<usize>,

fn from_str(s: &str) -> LexBuildResult<LRNonStreamingLexerDef<LexerTypesT>>

Instantiate a lexer from a string (e.g. representing a .l file).

fn get_rule(&self, idx: usize) -> Option<&Rule<LexerTypesT::StorageT>>

Get the Rule at index idx.

fn get_rule_by_id(
    &self,
    tok_id: LexerTypesT::StorageT
) -> &Rule<LexerTypesT::StorageT>

Get the Rule instance associated with a particular lexeme ID. Panics if no such rule exists.

fn get_rule_by_name(&self, n: &str) -> Option<&Rule<LexerTypesT::StorageT>>

Get the Rule instance associated with a particular name.

fn set_rule_ids<'a>(
    &'a mut self,
    rule_ids_map: &HashMap<&'a str, LexerTypesT::StorageT>
) -> (Option<HashSet<&'a str>>, Option<HashSet<&'a str>>)

Set the id attribute on rules to the corresponding value in map. This is typically used to synchronise a parser’s notion of lexeme IDs with the lexers. While doing this, it keeps track of which lexemes:

fn iter_rules(&self) -> Iter<'_, Rule<LexerTypesT::StorageT>>

Returns an iterator over all rules in this AST.

fn iter_start_states(&self) -> Iter<'_, StartState>

Returns an iterator over all start states in this AST.