interpolate

README

go-interpolate

A small tool for easy string interpolation in golang.

Usage

Values from map[string]interface{}

import (
  "fmt"
  "github.com/henvo/go-interpolate"
)

func main() {
  m := map[string]interface{}{
    "name": "Bob",
    "message": "You've got mail!"
  }

  fmt.Println(interpolate.FromMap("Hello %{name}! %{message}", m))
}

Will print:

Hello Bob! You've got mail!

Values from url.Values

import (
  "fmt"
  "net/url"
  "github.com/henvo/go-interpolate"
)

func main() {
  m := make(url.Values)
  m.Add("name", "Bob")
  m.Add("message", "You've got mail!")

  fmt.Println(interpolate.FromURLValues("Hello %{name}! %{message}", m))
}

Will print:

Hello Bob! You've got mail!

Documentation

Index

• func FromMap(s string, m map[string]interface{}) string
• func FromURLValues(s string, values url.Values) string

Functions

func FromMap

func FromMap(s string, m map[string]interface{}) string

FromMap will perform string interpolation on a given string and map with string keys and interface{} value. In order to be able to interpolate variables with values of the given map the keys to the values need to be wrapped with a percentage sign and curly bracketts `%{}`

func FromURLValues

func FromURLValues(s string, values url.Values) string

FromURLValues will perform string interpolation on a given string and url.Values. Important note: only the first value for a given key is used.