Enum Pattern 

pub enum Pattern {
    Begin,
    End,
    BeginFile,
    EndFile,
    Expr(Expr),
    Regex(String),
    Range {
        start: Box<Pattern>,
        end: Box<Pattern>,
    },
    And(Box<Pattern>, Box<Pattern>),
    Or(Box<Pattern>, Box<Pattern>),
    Not(Box<Pattern>),
}

Pattern types that can trigger a rule

Variants

Begin

BEGIN - runs before any input

End

END - runs after all input

BeginFile

BEGINFILE - runs at the start of each input file (gawk extension)

EndFile

ENDFILE - runs at the end of each input file (gawk extension)

Expr(Expr)

Expression that evaluates to true/false

Regex(String)

Regex pattern: /pattern/

Range

Range pattern: /start/,/end/

Fields

start: Box<Pattern>

end: Box<Pattern>

And(Box<Pattern>, Box<Pattern>)

Compound patterns with logical operators

Or(Box<Pattern>, Box<Pattern>)

Not(Box<Pattern>)

Trait Implementations

impl Clone for Pattern

fn clone(&self) -> Pattern

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Pattern

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

Formats the value using the given formatter.