31 lines
784 B
Markdown
31 lines
784 B
Markdown
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# prefixedio
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`prefixedio` (Golang package: `prefixedio`) is a package for Go
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that takes an `io.Reader` and de-multiplexes line-oriented data based
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on a line prefix to a set of readers.
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## Installation and Usage
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Install using `go get github.com/mitchellh/prefixedio`.
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Full documentation is available at
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http://godoc.org/github.com/mitchellh/prefixedio
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Below is an example of its usage ignoring errors:
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```go
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// Assume r is some set io.Reader. Perhaps a file, network, anything.
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var r io.Reader
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// Initialize the prefixed reader
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pr, _ := prefixedio.NewReader(r)
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// Grab readers for a couple prefixes
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errR, _ := pr.Prefix("err: ")
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outR, _ := pr.Prefix("out: ")
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// Copy the data to different places based on the prefix
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go io.Copy(os.Stderr, errR)
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go io.Copy(os.Stdout, outR)
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```
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