token

Documentation

Index

• Constants
• func TokenToStr(token TokenType) string
• type Token
• type TokenType
  • func LookupIdent(ident string) TokenType

Constants

const (
	EOF     TokenType = 0
	ILLEGAL           = -1

	// Identifiers and Literals
	IDENT  = 0x100
	INT    = 0x101
	FLOAT  = 0x102
	STRING = 0x103

	// Operators
	EQUAL = 0x200 // =
	LT    = 0x201 // <
	LTEQ  = 0x202 // <=
	GT    = 0x203 // >
	GTEQ  = 0x204 // >=
	NOTEQ = 0x205 // <>

	// Logical Operators
	AND = 0x300 // and
	OR  = 0x301 // or
	NOT = 0x302 // not

	// built-in functions
	SAMPLE_HAS_PROCESS_FUNC    = 0x400 // s-has-process:
	SAMPLE_HAS_ATTRIBUTE_FUNC  = 0x401 // s-has-attribute:
	PROCESS_HAS_SAMPLE_FUNC    = 0x402 // p-has-sample:
	PROCESS_HAS_ATTRIBUTE_FUNC = 0x403 // p-has-attribute:

	// Keywords
	SAMPLE       = 0x700 // s:
	PROCESS      = 0x701 // p:
	ATTR         = 0x702 // a:
	SELECT       = 0x703 // select
	WHERE        = 0x704 // where
	NULL         = 0x705 // null
	SAMPLES      = 0x706 // samples
	PROCESSES    = 0x707 // processes
	PROCESS_ATTR = 0x708 // pa:
	SAMPLE_ATTR  = 0x709 // sa:
	TRUE         = 0x710 // true
	FALSE        = 0x711 // false

	// Elements
	LBRACKET  = 0x800 // [
	RBRACKET  = 0x801 // ]
	LPAREN    = 0x802 // (
	RPAREN    = 0x803 // )
	COMMA     = 0x804 // ,
	QUOTE     = 0x805 // "
	COLON     = 0x806 // :
	SEMICOLON = 0x807 // ;
	MINUS     = 0x808 // -
	BANG      = 0x809 // !
	PLUS      = 0x810 // +
)

Functions

func TokenToStr

func TokenToStr(token TokenType) string

Types

type Token

type Token struct {
	Type    TokenType
	Literal string
}

type TokenType

type TokenType int

func LookupIdent

func LookupIdent(ident string) TokenType