lexerql

package

v0.0.0-...-89c0670 Latest Latest Go to latest Published: Apr 25, 2024 License: Apache-2.0 Imports: 6 Imported by: 0

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Repository

github.com/tdakkota/docker-logql

Documentation ¶

Overview ¶

Package lexerql provides utilities for lexing in *QL languages.

Index ¶

Constants
func IsBytesRune[R char](r R) bool
func IsDigit[R char](r R) bool
func IsDurationRune[R char](r R) bool
func IsIdentRune[R char](r R) bool
func IsIdentStartRune[R char](r R) bool
func IsLetter[R char](r R) bool
func ParseDuration(s string) (time.Duration, error)
func ScanComment(s *scanner.Scanner)
func ScanDuration(s *scanner.Scanner, number string) (string, error)
type Unit
- func ScanUnit(s *scanner.Scanner, prefix string) (Unit, error)
type UnitType

Constants ¶

View Source

const (
	// Number is a plain Go number.
	Number = iota
	// Duration is a Prometheus/Go duration.
	Duration
	// Bytes is a [humanize.Bytes] value.
	Bytes
)

Variables ¶

This section is empty.

Functions ¶

func IsBytesRune ¶

func IsBytesRune[R char](r R) bool

IsBytesRune returns true, if r is a non-digit rune that could be part of bytes.

func IsDigit ¶

func IsDigit[R char](r R) bool

IsDigit returns true, if r is an ASCII digit.

func IsDurationRune ¶

func IsDurationRune[R char](r R) bool

IsDurationRune returns true, if r is a non-digit rune that could be part of duration.

func IsIdentRune ¶

func IsIdentRune[R char](r R) bool

IsIdentRune returns true, if r is a valid character of Go identifier/Prometheus label.

func IsIdentStartRune ¶

func IsIdentStartRune[R char](r R) bool

IsIdentStartRune returns true, if r is a valid first character of Go identifier/Prometheus label.

func IsLetter ¶

func IsLetter[R char](r R) bool

IsLetter returns true, if r is an ASCII letter.

func ParseDuration ¶

func ParseDuration(s string) (time.Duration, error)

ParseDuration parses Prometheus or Go duration

func ScanComment ¶

func ScanComment(s *scanner.Scanner)

ScanComment reads runes until newline.

func ScanDuration ¶

func ScanDuration(s *scanner.Scanner, number string) (string, error)

ScanDuration scans and parses duration from given scanner.

Types ¶

type Unit ¶

type Unit struct {
	Type UnitType
	Text string
}

Unit represents suffixed numeric token like duration.

func ScanUnit ¶

func ScanUnit(s *scanner.Scanner, prefix string) (Unit, error)

ScanUnit scans unit tokens like durations and bytes.

type UnitType ¶

type UnitType int

UnitType defines Unit type.

Source Files ¶

View all Source files

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