parser

package

v0.6.0 Latest Latest Go to latest Published: Apr 23, 2021 License: Apache-2.0 Imports: 12 Imported by: 3

Details

Valid go.mod file
Redistributable license
Tagged version
Stable version
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Repository

github.com/VirusTotal/gyp

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Documentation ¶

Index ¶

Constants
func Parse(input io.Reader) (rs *ast.RuleSet, err error)
func YYmain(filenames ...string) (interface{}, error)
type Scanner
- func NewScanner() *Scanner
type YYcontext
type YYtype
- func Error(c gyperror.Code, msg string) YYtype

Constants ¶

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const (
	ModGlobal modifiers = 1 << iota
	ModPrivate
	ModASCII
	ModWide
	ModXor
	ModFullword
	ModNocase
	ModBase64
	ModBase64Wide
)

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const COMMENT = 3

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const REGEXP = 2

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const STR = 1

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const UNARY_MINUS = 57404

Variables ¶

This section is empty.

Functions ¶

func Parse ¶

func Parse(input io.Reader) (rs *ast.RuleSet, err error)

func YYmain ¶

func YYmain(filenames ...string) (interface{}, error)

Types ¶

type Scanner ¶

type Scanner struct {
	In     io.Reader
	Out    io.Writer
	Lineno int

	Filename      string
	Wrap          func(*Scanner) bool
	IsInteractive func(io.Reader) bool
	Context       YYcontext

	Interactive bool
	// contains filtered or unexported fields
}

func NewScanner ¶

func NewScanner() *Scanner

func (*Scanner) Input ¶

func (yy *Scanner) Input() (byte, error)

func (*Scanner) Lex ¶

func (yy *Scanner) Lex() YYtype

The main scanner function which does all the work.

func (*Scanner) NewFile ¶

func (yy *Scanner) NewFile()

func (*Scanner) Restart ¶

func (yy *Scanner) Restart(input_file io.Reader)

* Immediately switch to a different input stream.

@param input_file A readable stream. *
@note This function does not reset the start condition to @c yyInitial .

func (*Scanner) Token ¶ added in v0.4.0

func (s *Scanner) Token(t int) YYtype

Token creates a YYtype struct for the given token type with no associated value.

func (*Scanner) TokenFloat64 ¶ added in v0.5.4

func (s *Scanner) TokenFloat64(t int, v float64) YYtype

func (*Scanner) TokenHexString ¶ added in v0.4.0

func (s *Scanner) TokenHexString(hexTokens []ast.HexToken) YYtype

func (*Scanner) TokenInt64 ¶ added in v0.4.0

func (s *Scanner) TokenInt64(t int, v int64) YYtype

func (*Scanner) TokenRegExp ¶ added in v0.4.0

func (s *Scanner) TokenRegExp(reg *ast.LiteralRegexp) YYtype

func (*Scanner) TokenString ¶ added in v0.4.0

func (s *Scanner) TokenString(t int, v string) YYtype

TokenString creates a YYtype struct for the given token type with an associated string.

type YYcontext ¶

type YYcontext struct{}

type YYtype ¶

type YYtype struct {
	Token  int
	Lineno int
	Value  *yrSymType
	Error  gyperror.Error
}

YYtype is the structure returned by the lexer every time the scanner asks for the next token. Each token may have an associated value, for example, the _IDENTIFIER_ token has an associated string with the identifier's name. If the lexer wants to return an error to the scanner it sets the Error field and leaves the Token and Value empty.

func Error ¶

func Error(c gyperror.Code, msg string) YYtype

Source Files ¶

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