hex

package

v0.1.1 Latest Latest Go to latest Published: Dec 2, 2019 License: Apache-2.0 Imports: 9 Imported by: 1

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Valid go.mod file
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Repository

github.com/VirusTotal/gyp

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Documentation ¶

Index ¶

Constants
Variables
func Parse(input io.Reader) (hexstr ast.HexTokens, err error)
func YYmain(filenames ...string) (interface{}, error)
type ByteWithMask
type Lexer
- func (l *Lexer) Error(e string)
- func (l *Lexer) Lex(lval *xxSymType) int
type Scanner
- func NewScanner() *Scanner
type YYcontext
type YYtype

Constants ¶

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const StringChainingThreshold int64 = 200

Variables ¶

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var ParsedHexString ast.HexTokens

Functions ¶

func Parse ¶

func Parse(input io.Reader) (hexstr ast.HexTokens, err error)

Parse parses an hex string in a YARA rule from the provided input source

func YYmain ¶

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

Types ¶

type ByteWithMask ¶

type ByteWithMask struct {
	Value byte
	Mask  byte
}

type Lexer ¶

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

Lexer is an adapter that fits the flexgo lexer ("Scanner") into goyacc

func (*Lexer) Error ¶

func (l *Lexer) Error(e string)

Error satisfies the interface expected of the goyacc parser.

func (*Lexer) Lex ¶

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

Lex provides the interface expected by the goyacc parser. It sets the global yylval pointer (defined in the lexer file) to the one passed as an argument so that the parser actions can make use of it.

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 .

type YYcontext ¶

type YYcontext interface{}

type YYtype ¶

type YYtype interface{}

Necessary types for flexgo

Source Files ¶

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