Version: v1.0.1 Latest Latest

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Published: Jun 30, 2015 License: Apache-2.0 Imports: 3 Imported by: 0




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func Conflicts

func Conflicts(labels1, labels2 map[string]string) bool

Conflicts takes 2 maps returns true if there a key match between the maps but the value doesn't match returns false in other cases

func Equals

func Equals(labels1, labels2 map[string]string) bool

Equals returns true if the given maps are equal

func Merge

func Merge(labels1, labels2 map[string]string) map[string]string

Merge combines given maps Note: It doesn't not check for any conflicts between the maps

func Parse

func Parse(selector string) (map[string]string, error)

Parse takes a string representing a selector and returns map[key]value, or an error. The input will cause an error if it does not follow this form:

<selector-syntax> ::= [ <requirement> | <requirement> "," <selector-syntax> ] <requirement> ::= KEY "=" VALUE KEY is a sequence of one or more characters following [ DNS_SUBDOMAIN "/" ] DNS_LABEL VALUE is a sequence of zero or more characters "([A-Za-z0-9_-\.])". Max length is 64 character. Delimiter is white space: (' ', '\t')


type Lexer

type Lexer struct {
	// contains filtered or unexported fields

Lexer represents the Lexer struct for label selector. It contains necessary informationt to tokenize the input string

func (*Lexer) Lex

func (l *Lexer) Lex() (tok Token, lit string)

Lex returns a pair of Token and the literal literal is meaningfull only for IdentifierToken token

type Parser

type Parser struct {
	// contains filtered or unexported fields

Parser data structure contains the label selector parser data structure

type ScannedItem

type ScannedItem struct {
	// contains filtered or unexported fields

ScannedItem are the item produced by the lexer. It contains the Token and the literal.

type Token

type Token int

constants definition for lexer token

const (
	ErrorToken Token = iota
	IdentifierToken // to represent keys and values

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