open-nomad/vendor/github.com/dustin/go-humanize/README.markdown
Seth Hoenig 435c0d9fc8 deps: Switch to Go modules for dependency management
This PR switches the Nomad repository from using govendor to Go modules
for managing dependencies. Aspects of the Nomad workflow remain pretty
much the same. The usual Makefile targets should continue to work as
they always did. The API submodule simply defers to the parent Nomad
version on the repository, keeping the semantics of API versioning that
currently exists.
2020-06-02 14:30:36 -05:00

3 KiB

Humane Units Build Status GoDoc

Just a few functions for helping humanize times and sizes.

go get it as github.com/dustin/go-humanize, import it as "github.com/dustin/go-humanize", use it as humanize.

See godoc for complete documentation.

Sizes

This lets you take numbers like 82854982 and convert them to useful strings like, 83 MB or 79 MiB (whichever you prefer).

Example:

fmt.Printf("That file is %s.", humanize.Bytes(82854982)) // That file is 83 MB.

Times

This lets you take a time.Time and spit it out in relative terms. For example, 12 seconds ago or 3 days from now.

Example:

fmt.Printf("This was touched %s.", humanize.Time(someTimeInstance)) // This was touched 7 hours ago.

Thanks to Kyle Lemons for the time implementation from an IRC conversation one day. It's pretty neat.

Ordinals

From a mailing list discussion where a user wanted to be able to label ordinals.

0 -> 0th
1 -> 1st
2 -> 2nd
3 -> 3rd
4 -> 4th
[...]

Example:

fmt.Printf("You're my %s best friend.", humanize.Ordinal(193)) // You are my 193rd best friend.

Commas

Want to shove commas into numbers? Be my guest.

0 -> 0
100 -> 100
1000 -> 1,000
1000000000 -> 1,000,000,000
-100000 -> -100,000

Example:

fmt.Printf("You owe $%s.\n", humanize.Comma(6582491)) // You owe $6,582,491.

Ftoa

Nicer float64 formatter that removes trailing zeros.

fmt.Printf("%f", 2.24)                // 2.240000
fmt.Printf("%s", humanize.Ftoa(2.24)) // 2.24
fmt.Printf("%f", 2.0)                 // 2.000000
fmt.Printf("%s", humanize.Ftoa(2.0))  // 2

SI notation

Format numbers with SI notation.

Example:

humanize.SI(0.00000000223, "M") // 2.23 nM

English-specific functions

The following functions are in the humanize/english subpackage.

Plurals

Simple English pluralization

english.PluralWord(1, "object", "") // object
english.PluralWord(42, "object", "") // objects
english.PluralWord(2, "bus", "") // buses
english.PluralWord(99, "locus", "loci") // loci

english.Plural(1, "object", "") // 1 object
english.Plural(42, "object", "") // 42 objects
english.Plural(2, "bus", "") // 2 buses
english.Plural(99, "locus", "loci") // 99 loci

Word series

Format comma-separated words lists with conjuctions:

english.WordSeries([]string{"foo"}, "and") // foo
english.WordSeries([]string{"foo", "bar"}, "and") // foo and bar
english.WordSeries([]string{"foo", "bar", "baz"}, "and") // foo, bar and baz

english.OxfordWordSeries([]string{"foo", "bar", "baz"}, "and") // foo, bar, and baz