logqlpattern

Documentation

Overview

Package logqlpattern contains parser for LogQL `pattern` stage pattern.

Index

• Constants
• func Match[Label ~string](p Pattern, input string, match func(label Label, value string)) bool
• type ParseFlags
  • func (f ParseFlags) Has(flag ParseFlags) bool
• type Part
• type PartType
• type Pattern
  • func MustParse(input string, flags ParseFlags) Pattern
  • func Parse(input string, flags ParseFlags) (p Pattern, _ error)

Constants

const (
	RequireCapture ParseFlags = 1 << iota
	DisallowNamed

	ExtractorFlags  = RequireCapture
	LineFilterFlags = DisallowNamed
)

Functions

func Match

func Match[Label ~string](p Pattern, input string, match func(label Label, value string)) bool

Match matches given pattern against input string.

Types

type ParseFlags

type ParseFlags uint8

ParseFlags defines options for Parse.

func (ParseFlags) Has

func (f ParseFlags) Has(flag ParseFlags) bool

Has whether if flag is set.

type Part

type Part struct {
	Type  PartType
	Value string
}

Part is a pattern part.

type PartType

type PartType uint8

PartType defines type of Part.

const (
	Capture PartType = iota + 1
	Literal
)

type Pattern

type Pattern struct {
	Parts []Part
}

Pattern is a parsed pattern.

func MustParse

func MustParse(input string, flags ParseFlags) Pattern

MustParse is like Parse but panics if the expression cannot be parsed.

func Parse

func Parse(input string, flags ParseFlags) (p Pattern, _ error)

Parse parses LogQL pattern.