exprs

package

v1.0.0 Latest Latest Go to latest Published: Mar 31, 2018 License: BSD-2-Clause Imports: 3 Imported by: 0

Details

Package exprs is the internal package for parsing DynamoDB "expressions", including condition expressions and filter expressions.

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type Expr struct {
	Items []Item
	// contains filtered or unexported fields
}

Expr is a "parsed" expression.

func Parse(input string) (*Expr, error)

Parse returns a lexed but not very parsed expression.

type Item struct {
	Type ItemType
	Pos  int
	Val  string
}

Item is a lexed item.

func (i Item) String() string

type ItemType int

ItemType of a lexed item.

const (
	ItemError ItemType = iota
	ItemEOF
	ItemText
	ItemQuotedName
	ItemNamePlaceholder
	ItemValuePlaceholder
	ItemMagicLiteral
)

Types of lexed items.