preprocess

Documentation

Index

• func Annotation(bs []byte) int
• func CleanupStream(in <-chan string, out chan<- *CleanupResult, wn int)
• func IsVirus(data []byte) bool
• func NoParse(data []byte) bool
• func NormalizeHybridChar(bs []byte) []byte
• func StripTags(s string) string
• func UnderscoreToSpace(bs []byte) (bool, error)
• func VirusLikeName(name string) bool
• type CleanupResult
• type Preprocessor
  • func Preprocess(bs []byte) *Preprocessor

Functions

func Annotation

func Annotation(bs []byte) int

Annotation returns index where unparsed part starts. In case if the full string can be parsed, returns returns the index of the end of the input.

func CleanupStream

func CleanupStream(in <-chan string, out chan<- *CleanupResult, wn int)

CleanupStream takes input and output string channels, and feeds output with pipe delimited strings with original name on the left and cleaned up name on the right from the pipe.

func IsVirus

func IsVirus(data []byte) bool

func NoParse

func NoParse(data []byte) bool

func NormalizeHybridChar

func NormalizeHybridChar(bs []byte) []byte

NormalizeHybridChar substitutes hybrid chars 'X' or 'x' with the multiplication sign char.

func StripTags

func StripTags(s string) string

StripTags takes a slice of bytes and returns a string with common tags removed and html entities escaped. It does keep all uncommon tags intact to let parser deal with them.

func UnderscoreToSpace

func UnderscoreToSpace(bs []byte) (bool, error)

UnderscoreToSpace takes a slice of bytes. If it finds that the string contains underscores, but not spaces, it substitutes underscores to spaces in the slice. In case if any spaces are present, the slice is returned unmodified.

func VirusLikeName

func VirusLikeName(name string) bool

Types

type CleanupResult

type CleanupResult struct {
	Input  string
	Output string
}

type Preprocessor

type Preprocessor struct {
	Virus       bool
	Underscore  bool
	NoParse     bool
	Approximate bool
	Annotation  bool
	Body        []byte
	Tail        []byte
}

func Preprocess

func Preprocess(bs []byte) *Preprocessor

Preprocess runs a series of regular expressions over the input to determine features of the input before parsing.