Enum KeywordOrIdentifier 

pub enum KeywordOrIdentifier {
    Keyword(Keyword),
    Identifier(Identifier),
}

Parse a keyword or identifier

This is the main entry point for lexing identifiers in PromQL. It first tries to match a keyword, and if that fails, parses as identifier.

Examples

use rusty_promql_parser::lexer::identifier::{keyword_or_identifier, KeywordOrIdentifier, Keyword, Identifier};

// Keywords are recognized
let (_, result) = keyword_or_identifier("sum").unwrap();
assert_eq!(result, KeywordOrIdentifier::Keyword(Keyword::Sum));

// Regular identifiers
let (_, result) = keyword_or_identifier("http_requests").unwrap();
assert_eq!(result, KeywordOrIdentifier::Identifier(Identifier::Plain("http_requests".to_string())));

// Metric identifiers (with colon)
let (_, result) = keyword_or_identifier("job:rate:5m").unwrap();
assert_eq!(result, KeywordOrIdentifier::Identifier(Identifier::Metric("job:rate:5m".to_string())));

Variants

Keyword(Keyword)

Identifier(Identifier)

Trait Implementations

impl Clone for KeywordOrIdentifier

fn clone(&self) -> KeywordOrIdentifier

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for KeywordOrIdentifier

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

Formats the value using the given formatter.

impl PartialEq for KeywordOrIdentifier

fn eq(&self, other: &KeywordOrIdentifier) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for KeywordOrIdentifier

impl StructuralPartialEq for KeywordOrIdentifier