# README
lineprefix
io.Writer
wrapper with line prefix and color customizations.
Usage
Static Prefix
prefix := lineprefix.Prefix("app |")
writer := lineprefix.New(prefix)
fmt.Fprintln(writer, "hello world")
output
app | hello world
Dynamic Prefix
now := func() string { return time.Now().UTC().Format("2006-01-02 15:04:05") }
prefix := lineprefix.PrefixFunc(now)
writer := lineprefix.New(prefix)
for i := 0; i<3; i++ {
fmt.Fprintln(writer, "hello world")
time.Sleep(time.Second)
}
output
2021-06-01 18:53:15 hello world
2021-06-01 18:53:16 hello world
2021-06-01 18:53:17 hello world
Color
Colors can be added with fatih/color.
Colored Prefix
A prefix with blue text on white background.
blue := color.New(color.FgBlue, color.BgWhite).SprintFunc()
prefix := lineprefix.Prefix(blue("app"))
writer := lineprefix.New(prefix)
fmt.Fprintln(writer, "this outputs blue on white prefix text")
Colored Output
A blue colored output.
blue := color.New(color.FgBlue)
option := lineprefix.Color(blue)
writer := lineprefix.New(option)
fmt.Fprintln(writer, "this outputs blue color text")
Example
The example file has an overview of the capabilities.
go run example/main.go
Screenshot
colored prefix and colored text from the example.
License
MIT
# Packages
No description provided by the author
# Functions
Color sets the colour for the line outputs, excluding the prefix.
New creates a new lineprefix writer with options.
Prefix sets the prefix to use.
PrefixFunc is like prefix but with the ability to make it dynamic.
RenderEscaped (if true) enables the rendering of escaped whitespace characters.
Writer sets the writer to use.
# Interfaces
Option is the configuration option for a new instance of lineprefix writer.