From b71f7cda2b08e1e3129f0c47e9e1f98f7ffbfcf7 Mon Sep 17 00:00:00 2001
From: Nick Randall <nicksrandall@gmail.com>
Date: Mon, 27 Feb 2017 22:21:12 -0700
Subject: [PATCH] Allow SI prefixes to be set in locale.

This could serve as an escape hatch for somebody who wanted to support custom SI prefixes. This could be used to solve #33 (binary prefixes) or it could be used to support something custom like American english numbers (1,000,000,000 => 1B [billion] instead of 1G [giga]).
---
 src/locale.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/locale.js b/src/locale.js
index 06f11a6..90290ea 100644
--- a/src/locale.js
+++ b/src/locale.js
@@ -4,7 +4,7 @@ import formatSpecifier from "./formatSpecifier";
 import formatTypes from "./formatTypes";
 import {prefixExponent} from "./formatPrefixAuto";
 
-var prefixes = ["y","z","a","f","p","n","µ","m","","k","M","G","T","P","E","Z","Y"];
+var defaultPrefixes = ["y","z","a","f","p","n","µ","m","","k","M","G","T","P","E","Z","Y"];
 
 function identity(x) {
   return x;
@@ -13,7 +13,8 @@ function identity(x) {
 export default function(locale) {
   var group = locale.grouping && locale.thousands ? formatGroup(locale.grouping, locale.thousands) : identity,
       currency = locale.currency,
-      decimal = locale.decimal;
+      decimal = locale.decimal,
+      prefixes = locale.prefixes || defaultPrefixes;
 
   function newFormat(specifier) {
     specifier = formatSpecifier(specifier);