logparser

Documentation

Index

• Constants
• func ScanString(r io.RuneScanner) (string, error)
• type Parser
  • func NewParser(r io.Reader) *Parser
  • func (p *Parser) GetScanner() *Scanner
  • func (p *Parser) Release()
• type Pos
• type Scanner
  • func NewScanner(r io.Reader) *Scanner
  • func (s *Scanner) Scan() (tok Token, pos Pos, lit string)
• type Token
  • func Lookup(ident string) Token
  • func (tok Token) String() string
• type YyParser
  • func NewYyParser(s *Scanner) YyParser
  • func (p *YyParser) Error(err string)
  • func (p *YyParser) GetQuery() (*influxql.Query, error)
  • func (p *YyParser) Lex(lval *yySymType) int
  • func (p *YyParser) ParseTokens()
  • func (p *YyParser) SetScanner(s *Scanner)
• type YyParserError
  • func (p YyParserError) Error() string

Constants

const AND = 57362

const AS = 57347

const BITWISE_OR = 57363

const COLON = 57364

const COMMA = 57365

const DefaultFieldForFullText = "__log___"

const EQ = 57353

const EXTRACT = 57346

const GT = 57356

const GTE = 57357

const IDENT = 57359

const IN = 57352

const LPAREN = 57348

const LSQUARE = 57350

const LT = 57354

const LTE = 57355

const NEQ = 57358

const OR = 57361

const RPAREN = 57349

const RSQUARE = 57351

const STRING = 57360

Functions

func ScanString

func ScanString(r io.RuneScanner) (string, error)

ScanString reads a quoted string from a rune reader.

Types

type Parser

type Parser struct {
	// contains filtered or unexported fields
}

Parser represents an InfluxQL parser.

func NewParser

func NewParser(r io.Reader) *Parser

NewParser returns a new instance of Parser.

func (*Parser) GetScanner

func (p *Parser) GetScanner() *Scanner

func (*Parser) Release

func (p *Parser) Release()

type Pos

type Pos struct {
	Line int
	Char int
}

Pos specifies the line and character position of a token. The Char and Line are both zero-based indexes.

type Scanner

type Scanner struct {
	// contains filtered or unexported fields
}

Scanner represents a lexical scanner for InfluxQL.

func NewScanner

func NewScanner(r io.Reader) *Scanner

NewScanner returns a new instance of Scanner.

func (*Scanner) Scan

func (s *Scanner) Scan() (tok Token, pos Pos, lit string)

Scan returns the next token and position from the underlying reader. Also returns the literal text read for strings, numbers, and duration tokens since these token types can have different literal representations.

type Token

type Token int

Token is a lexical token of the InfluxQL language.

const (
	// ILLEGAL Token, EOF, WS are Special InfluxQL tokens.
	ILLEGAL Token = iota
	EOF
	WS

	BADSTRING // "abc
	BADESCAPE // \q
)

These are a comprehensive list of InfluxQL language tokens.

func Lookup

func Lookup(ident string) Token

Lookup returns the token associated with a given string.

func (Token) String

func (tok Token) String() string

String returns the string representation of the token.

type YyParser

type YyParser struct {
	Query   influxql.Query
	Scanner *Scanner
	// contains filtered or unexported fields
}

func NewYyParser

func NewYyParser(s *Scanner) YyParser

func (*YyParser) Error

func (p *YyParser) Error(err string)

func (*YyParser) GetQuery

func (p *YyParser) GetQuery() (*influxql.Query, error)

func (*YyParser) Lex

func (p *YyParser) Lex(lval *yySymType) int

func (*YyParser) ParseTokens

func (p *YyParser) ParseTokens()

func (*YyParser) SetScanner

func (p *YyParser) SetScanner(s *Scanner)

type YyParserError

type YyParserError string

func (YyParserError) Error

func (p YyParserError) Error() string