parser

func (*Lexer) AppendError ¶

func (l *Lexer) AppendError(err error)

AppendError sets error into scanner. Lexer satisfies yyLexer interface which need this function.

func (*Lexer) AppendWarn ¶

func (l *Lexer) AppendWarn(err error)

AppendWarn sets warning into scanner.

func (*Lexer) Errorf ¶

func (l *Lexer) Errorf(format string, a ...interface{}) (err error)

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

func (*Lexer) Errors ¶

func (l *Lexer) Errors() (warns []error, errs []error)

Errors returns the errors and warns during a scan.

func (*Lexer) InheritScanner ¶

func (l *Lexer) InheritScanner(sql string) *Lexer

InheritScanner returns a new scanner object which inherits configurations from the parent scanner.

func (*Lexer) Lex ¶

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

Lex returns a token and store the token value in v. Lexer 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 (*Lexer) LexLiteral ¶

func (l *Lexer) LexLiteral() interface{}

LexLiteral returns the value of the converted literal

func (*Parser) Parse ¶

func (p *Parser) Parse(sql string) (stmts []ast.StmtNode, warns []error, err error)

func (*Parser) ParseOneStmt ¶

func (p *Parser) ParseOneStmt(sql string) (ast.StmtNode, error)

ParseOneStmt parses a query and returns an ast.StmtNode. The query must have exactly one statement.