Version: v2.0.11+incompatible Latest Latest

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Published: Jan 3, 2019 License: Apache-2.0 Imports: 15 Imported by: 653




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var (
	// ErrSyntax returns for sql syntax error.
	ErrSyntax = terror.ClassParser.New(codeErrSyntax, mysql.MySQLErrName[mysql.ErrSyntax])
	// ErrParse returns for sql parse error.
	ErrParse = terror.ClassParser.New(codeErrParse, mysql.MySQLErrName[mysql.ErrParse])
	// SpecFieldPattern special result field pattern
	SpecFieldPattern = regexp.MustCompile(`(\/\*!(M?[0-9]{5,6})?|\*\/)`)


func ParseErrorWith

func ParseErrorWith(errstr string, lineno int) *terror.Error

ParseErrorWith returns "You have a syntax error near..." error message compatible with mysql.

func TrimComment

func TrimComment(txt string) string

TrimComment trim comment for special comment code of MySQL.


type Parser

type Parser struct {
	// contains filtered or unexported fields

Parser represents a parser instance. Some temporary objects are stored in it to reduce object allocation during Parse function.

func New

func New() *Parser

New returns a Parser object.

func (*Parser) Parse

func (parser *Parser) Parse(sql, charset, collation string) ([]ast.StmtNode, error)

Parse parses a query string to raw ast.StmtNode. If charset or collation is "", default charset and collation will be used.

func (*Parser) ParseOneStmt

func (parser *Parser) ParseOneStmt(sql, charset, collation string) (ast.StmtNode, error)

ParseOneStmt parses a query and returns an ast.StmtNode. The query must have one statement, otherwise ErrSyntax is returned.

func (*Parser) SetSQLMode

func (parser *Parser) SetSQLMode(mode mysql.SQLMode)

SetSQLMode sets the SQL mode for parser.

type Pos

type Pos struct {
	Line   int
	Col    int
	Offset int

Pos represents the position of a token.

type Scanner

type Scanner struct {
	// contains filtered or unexported fields

Scanner implements the yyLexer interface.

func NewScanner

func NewScanner(s string) *Scanner

NewScanner returns a new scanner object.

func (*Scanner) Errorf

func (s *Scanner) Errorf(format string, a ...interface{})

Errorf tells scanner something is wrong. Scanner satisfies yyLexer interface which need this function.

func (*Scanner) Errors

func (s *Scanner) Errors() []error

Errors returns the errors during a scan.

func (*Scanner) GetSQLMode

func (s *Scanner) GetSQLMode() mysql.SQLMode

GetSQLMode return the SQL mode of scanner.

func (*Scanner) Lex

func (s *Scanner) Lex(v *yySymType) int

Lex returns a token and store the token value in v. Scanner satisfies yyLexer interface. 0 and invalid are special token id this function would return: return 0 tells parser that scanner meets EOF, return invalid tells parser that scanner meets illegal character.

func (*Scanner) SetSQLMode

func (s *Scanner) SetSQLMode(mode mysql.SQLMode)

SetSQLMode sets the SQL mode for scanner.


Path Synopsis
Goyacc is a version of yacc generating Go parsers.
Goyacc is a version of yacc generating Go parsers.

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