parser

package
v0.1.5 Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Jun 4, 2017 License: MIT Imports: 11 Imported by: 2

Documentation

Index

Examples

Constants

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const (
	EOF = -(iota + 1)
	UNCATEGORIZED
)
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const ALL = 57389
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const ALTER = 57368
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const AND = 57393
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const ANY = 57390
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const AS = 57363
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const ASC = 57375
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const BETWEEN = 57396
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const BOOLEAN = 57350
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const BY = 57374
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const CASE = 57405
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const COLUMN = 57370
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const COMPARISON_OP = 57413
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const CREATE = 57366
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const CROSS = 57384
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const DATETIME = 57352
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const DATETIME_FORMAT = "2006-01-02 15:04:05.999999999"
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const DELETE = 57358
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const DESC = 57376
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const DISTINCT = 57400
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const DROP = 57367
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const DUAL = 57364
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const ELSE = 57408
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const END = 57409
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const EXISTS = 57391
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const FALSE = 57403
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const FLOAT = 57349
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const FROM = 57355
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const FULL = 57383
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const GROUP = 57372
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const GROUP_CONCAT = 57410
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const HAVING = 57373
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const IDENTIFIER = 57346
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const IN = 57392
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const INNER = 57379
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const INSERT = 57360
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const INTEGER = 57348
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const INTO = 57361
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const IS = 57398
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const JOIN = 57378
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const LEFT = 57381
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const LIKE = 57397
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const LIMIT = 57377
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const NATURAL = 57387
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const NOT = 57395
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const NULL = 57399
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const ON = 57385
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const OR = 57394
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const ORDER = 57371
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const OUTER = 57380
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const RIGHT = 57382
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const SELECT = 57354
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const SEPARATOR = 57411
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const SET = 57357
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const STDIN = 57365
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const STRING = 57347
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const STRING_OP = 57414
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const SUBSTITUTION_OP = 57415
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const TABLE = 57369
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const TERNARY = 57351
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const THEN = 57407
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const TOKEN_UNDEFINED = 0
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const TRUE = 57402
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const UNION = 57388
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const UNKNOWN = 57404
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const UPDATE = 57356
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const USING = 57386
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const VALUES = 57362
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const VAR = 57412
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const VARIABLE = 57353
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const WHEN = 57406
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const WHERE = 57359
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const WITH = 57401

Variables

This section is empty.

Functions

func Float64ToStr 

func Float64ToStr(f float64) string

func Int64ToStr 

func Int64ToStr(i int64) string

func IsNull 

func IsNull(v Primary) bool

func IsPrimary 

func IsPrimary(e Expression) bool

func SetDebugLevel 

func SetDebugLevel(level int, verbose bool)
Example 
SetDebugLevel(0, false)
_, err := Parse("select select")
fmt.Println(err)

SetDebugLevel(0, true)
_, err = Parse("select select")
fmt.Println(err)

Output:

syntax error
syntax error: unexpected SELECT

func StrToTime 

func StrToTime(s string) (time.Time, error)

func TokenLiteral 

func TokenLiteral(token int) string

Types

type All 

type All struct {
	All      string
	LHS      Expression
	Operator Token
	Query    Subquery
}

func (All) String 

func (a All) String() string

type AllColumns 

type AllColumns struct {
}

func (AllColumns) String 

func (ac AllColumns) String() string

type Any 

type Any struct {
	Any      string
	LHS      Expression
	Operator Token
	Query    Subquery
}

func (Any) String 

func (a Any) String() string

type Arithmetic 

type Arithmetic struct {
	LHS      Expression
	Operator int
	RHS      Expression
}

func (Arithmetic) String 

func (a Arithmetic) String() string

type Between 

type Between struct {
	Between  string
	And      string
	LHS      Expression
	Low      Expression
	High     Expression
	Negation Token
}

func (*Between) IsNegated 

func (b *Between) IsNegated() bool

func (Between) String 

func (b Between) String() string

type Boolean 

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

func NewBoolean 

func NewBoolean(b bool) Boolean

func (Boolean) Bool 

func (b Boolean) Bool() bool

func (Boolean) String 

func (b Boolean) String() string

func (Boolean) Ternary 

func (b Boolean) Ternary() ternary.Value

type Case 

type Case struct {
	Case  string
	End   string
	Value Expression
	When  []Expression
	Else  Expression
}

func (Case) String 

func (c Case) String() string

type CaseElse 

type CaseElse struct {
	Else   string
	Result Expression
}

func (CaseElse) String 

func (ce CaseElse) String() string

type CaseWhen 

type CaseWhen struct {
	When      string
	Then      string
	Condition Expression
	Result    Expression
}

func (CaseWhen) String 

func (cw CaseWhen) String() string

type Comparison 

type Comparison struct {
	LHS      Expression
	Operator Token
	RHS      Expression
}

func (Comparison) String 

func (c Comparison) String() string

type Concat 

type Concat struct {
	Items []Expression
}

func (Concat) String 

func (c Concat) String() string

type Datetime 

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

func NewDatetime 

func NewDatetime(t time.Time) Datetime

func NewDatetimeFromString 

func NewDatetimeFromString(s string) Datetime

func (Datetime) Bool 

func (dt Datetime) Bool() bool

func (Datetime) Format 

func (dt Datetime) Format() string

func (*Datetime) SetFormat 

func (dt *Datetime) SetFormat(format string)

func (Datetime) String 

func (dt Datetime) String() string

func (Datetime) Ternary 

func (dt Datetime) Ternary() ternary.Value

func (Datetime) Value 

func (dt Datetime) Value() time.Time

type Dual 

type Dual struct {
	Dual string
}

func (Dual) String 

func (d Dual) String() string

type Exists 

type Exists struct {
	Exists string
	Query  Subquery
}

func (Exists) String 

func (e Exists) String() string

type Expression 

type Expression interface {
	String() string
}

type Field 

type Field struct {
	Object Expression
	As     Token
	Alias  Expression
}

func (*Field) Name 

func (f *Field) Name() string

func (Field) String 

func (f Field) String() string

type Float 

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

func NewFloat 

func NewFloat(f float64) Float

func NewFloatFromString 

func NewFloatFromString(s string) Float

func (Float) Bool 

func (f Float) Bool() bool

func (Float) String 

func (f Float) String() string

func (Float) Ternary 

func (f Float) Ternary() ternary.Value

func (Float) Value 

func (f Float) Value() float64

type FromClause 

type FromClause struct {
	From   string
	Tables []Expression
}

func (FromClause) String 

func (f FromClause) String() string

type Function 

type Function struct {
	Name   string
	Option Option
}

func (Function) String 

func (f Function) String() string

type GroupByClause 

type GroupByClause struct {
	GroupBy string
	Items   []Expression
}

func (GroupByClause) String 

func (gb GroupByClause) String() string

type GroupConcat 

type GroupConcat struct {
	GroupConcat  string
	Option       Option
	OrderBy      Expression
	SeparatorLit string
	Separator    string
}

func (GroupConcat) String 

func (gc GroupConcat) String() string

type HavingClause 

type HavingClause struct {
	Having string
	Filter Expression
}

func (HavingClause) String 

func (h HavingClause) String() string

type Identifier 

type Identifier struct {
	Literal string
	Quoted  bool
}

func (*Identifier) FieldRef 

func (i *Identifier) FieldRef() (string, string, error)

func (Identifier) String 

func (i Identifier) String() string

type In 

type In struct {
	In       string
	LHS      Expression
	List     []Expression
	Query    Subquery
	Negation Token
}

func (*In) IsNegated 

func (i *In) IsNegated() bool

func (In) String 

func (i In) String() string

type Integer 

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

func NewInteger 

func NewInteger(i int64) Integer

func NewIntegerFromString 

func NewIntegerFromString(s string) Integer

func (Integer) Bool 

func (i Integer) Bool() bool

func (Integer) String 

func (i Integer) String() string

func (Integer) Ternary 

func (i Integer) Ternary() ternary.Value

func (Integer) Value 

func (i Integer) Value() int64

type Is 

type Is struct {
	Is       string
	LHS      Expression
	RHS      Expression
	Negation Token
}

func (*Is) IsNegated 

func (i *Is) IsNegated() bool

func (Is) String 

func (i Is) String() string

type Join 

type Join struct {
	Join      string
	Table     Table
	JoinTable Table
	Natural   Token
	JoinType  Token
	Direction Token
	Condition Expression
}

func (Join) String 

func (j Join) String() string

type JoinCondition 

type JoinCondition struct {
	Literal string
	On      Expression
	Using   []Expression
}

func (JoinCondition) String 

func (jc JoinCondition) String() string

type Lexer 

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

func (*Lexer) Error 

func (l *Lexer) Error(e string)

func (*Lexer) Lex 

func (l *Lexer) Lex(lval *yySymType) int

type Like 

type Like struct {
	Like     string
	LHS      Expression
	Pattern  Expression
	Negation Token
}

func (*Like) IsNegated 

func (l *Like) IsNegated() bool

func (Like) String 

func (l Like) String() string

type LimitClause 

type LimitClause struct {
	Limit  string
	Number int64
}

func (LimitClause) String 

func (l LimitClause) String() string

type Logic 

type Logic struct {
	LHS      Expression
	Operator Token
	RHS      Expression
}

func (Logic) String 

func (l Logic) String() string

type Null 

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

func NewNull 

func NewNull() Null

func NewNullFromString 

func NewNullFromString(s string) Null

func (Null) Bool 

func (n Null) Bool() bool

func (Null) String 

func (n Null) String() string

func (Null) Ternary 

func (n Null) Ternary() ternary.Value

type Option 

type Option struct {
	Distinct Token
	Args     []Expression
}

func (Option) IsDistinct 

func (o Option) IsDistinct() bool

func (Option) String 

func (o Option) String() string

type OrderByClause 

type OrderByClause struct {
	OrderBy string
	Items   []Expression
}

func (OrderByClause) String 

func (ob OrderByClause) String() string

type OrderItem 

type OrderItem struct {
	Item      Expression
	Direction Token
}

func (OrderItem) String 

func (oi OrderItem) String() string

type Parentheses 

type Parentheses struct {
	Expr Expression
}

func (Parentheses) String 

func (p Parentheses) String() string

type Primary 

type Primary interface {
	String() string
	Bool() bool
	Ternary() ternary.Value
}

func Float64ToPrimary 

func Float64ToPrimary(f float64) Primary

func PrimaryToBoolean 

func PrimaryToBoolean(p Primary) Primary

func PrimaryToDatetime 

func PrimaryToDatetime(p Primary) Primary

func PrimaryToFloat 

func PrimaryToFloat(p Primary) Primary

func PrimaryToInteger 

func PrimaryToInteger(p Primary) Primary

func PrimaryToString 

func PrimaryToString(p Primary) Primary

type Scanner 

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

func (*Scanner) Init 

func (s *Scanner) Init(src string) *Scanner

func (*Scanner) Scan 

func (s *Scanner) Scan() (int, string, bool, error)

type SelectClause 

type SelectClause struct {
	Select   string
	Distinct Token
	Fields   []Expression
}

func (SelectClause) IsDistinct 

func (sc SelectClause) IsDistinct() bool

func (SelectClause) String 

func (sc SelectClause) String() string

type SelectQuery 

type SelectQuery struct {
	SelectClause  Expression
	FromClause    Expression
	WhereClause   Expression
	GroupByClause Expression
	HavingClause  Expression
	OrderByClause Expression
	LimitClause   Expression
}

func (SelectQuery) String 

func (sq SelectQuery) String() string

type Statement 

type Statement interface{}

func Parse 

func Parse(s string) ([]Statement, error)

type Stdin added in v0.1.5 

type Stdin struct {
	Stdin string
}

func (Stdin) String added in v0.1.5 

func (si Stdin) String() string

type String 

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

func NewString 

func NewString(s string) String

func (String) Bool 

func (s String) Bool() bool

func (String) String 

func (s String) String() string

func (String) Ternary 

func (s String) Ternary() ternary.Value

func (String) Value 

func (s String) Value() string

type Subquery 

type Subquery struct {
	Query SelectQuery
}

func (Subquery) String 

func (sq Subquery) String() string

type Table 

type Table struct {
	Object Expression
	As     Token
	Alias  Expression
}

func (*Table) Name 

func (t *Table) Name() string

func (Table) String 

func (t Table) String() string

type Ternary 

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

func NewTernary 

func NewTernary(t ternary.Value) Ternary

func NewTernaryFromString 

func NewTernaryFromString(s string) Ternary

func (Ternary) Bool 

func (t Ternary) Bool() bool

func (Ternary) String 

func (t Ternary) String() string

func (Ternary) Ternary 

func (t Ternary) Ternary() ternary.Value

type Token 

type Token struct {
	Token   int
	Literal string
	Quoted  bool
}

func (*Token) IsEmpty 

func (t *Token) IsEmpty() bool

type Variable 

type Variable struct {
	Name string
}

func (Variable) String 

func (v Variable) String() string

type VariableAssignment 

type VariableAssignment struct {
	Name  string
	Value Expression
}

func (VariableAssignment) String 

func (va VariableAssignment) String() string

type VariableDeclaration 

type VariableDeclaration struct {
	Var         string
	Assignments []Expression
}

func (VariableDeclaration) String 

func (vd VariableDeclaration) String() string

type VariableSubstitution 

type VariableSubstitution struct {
	Variable Variable
	Value    Expression
}

func (VariableSubstitution) String 

func (vs VariableSubstitution) String() string

type WhereClause 

type WhereClause struct {
	Where  string
	Filter Expression
}

func (WhereClause) String 

func (w WhereClause) String() string

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