github.com/reiver/go-indent

go-indent

Package indent provides tools for indentation of UTF-8 text, for the Go programming language.

For example, if you take some text, package indent can make it so it puts tabs, or spaces for indentation in front of each non-empty line.

So, for example, this:

Hello world!

I came; I saw; I conquered.

Can becomes this:

	Hello world!

	I came; I saw; I conquered.

Or:

		Hello world!

		I came; I saw; I conquered.

Or:

-----Hello world!

-----I came; I saw; I conquered.

You can specify how much indentation you want, and what you want the indentation to be (ex: tabs, spaces, or any other symbol, or string).

Documention

Online documentation, which includes examples, can be found at: http://godoc.org/github.com/reiver/go-indent

Example

import "github.com/reiver/go-indent"

// ...

var writer io.Writer

// ...

var indentationWriter indent.Writer

indentationWriter.Indentation = "\t\t"
indentationWriter.Writer      = writer

// ...

var s string =
"This is a sentence.\n"+
"This is another sentence.\n"+
"\n"+
"This is a new paragraph.\n"

// ...

io.WriteString(&indentationWriter, s) // <---- Note we write to the ‘indentationWriter’, and not ‘writer’.

// Result will be:
//
// "\t\tThis is a sentence.\n"+
// "\t\tThis is another sentence.\n"+
// "\n"+
// "\t\tThis is a new paragraph.\n"
//
// Note the "\t\t" indentation in front of each non-empty line.
//
// Note the empty line (i.e., "\n") did not get indentation.