wfilter

Documentation

Overview

package wfilter provides facilities for adding filtering to io.Writer.

Index

• func LinePrepender(w io.Writer, prepend Prepend) io.Writer
• func SimplePrepender(w io.Writer, prepend Prepend) io.Writer
• type Prepend

Functions

func LinePrepender

func LinePrepender(w io.Writer, prepend Prepend) io.Writer

LinePrepender creates an io.Writer that prepends to each line by calling the given prepend function. Prepend can write whatever it wants. It should return the bytes written and any error encountered.

func SimplePrepender

func SimplePrepender(w io.Writer, prepend Prepend) io.Writer

SimplePrepender creates an io.Writer that prepends by calling the given prepend function. Prepend can write whatever it wants. It should return the bytes written and any error encountered.

Types

type Prepend

type Prepend func(w io.Writer) (int, error)