Update (#112)

- Fix README 4167 -> 4217
- Add methods

Project.toml

@@ -2,7 +2,7 @@ name = "Currencies"
 uuid = "0fd90b74-7c1f-579e-9252-02cd883047b9"
 license = "MIT"
 authors = ["Eric Forgy <Eric.Forgy@cavalre.com>", "ScottPJones <scottjones@alum.mit.edu>"]
-version = "0.15.0"
+version = "0.15.1"
 
 [deps]
 Pkg = "44cfe95a-1eb2-52ea-b672-e2afdf69b78f"

README.md

@@ -37,7 +37,7 @@
 
 This is a core package for the JuliaFinance ecosytem. 
 
-It provides bare singleton types based on the standard ISO 4167 3-character alpha codes to be used primarily for dispatch in other JuliaFinance packages together with five methods:
+It provides bare singleton types based on the standard ISO 4217 3-character alpha codes to be used primarily for dispatch in other JuliaFinance packages together with five methods:
 
 - `symbol`: The 3-character symbol of the currency.
 - `currency`: The singleton type instance for a particular currency symbol
@@ -92,7 +92,7 @@ Code: 368
 Minor Unit: 3
 ```
 
-If all you need is a list of currencies with names, ISO 4167 codes and minor units, e.g. for building a dropdown menu in a user interface, then this lightweight package is what you want.
+If all you need is a list of currencies with names, ISO 4217 codes and minor units, e.g. for building a dropdown menu in a user interface, then this lightweight package is what you want.
 
 ## [Assets.jl](https://github.com/JuliaFinance/Assets.jl)
 

src/Currencies.jl

@@ -55,12 +55,19 @@ Returns the ISO 4217 name associated with this value
 """
 function name end
 
-symbol(::Currency{S}) where {S} = S
 currency(S::Symbol) = _currency_data[S][1]
 unit(S::Symbol) = _currency_data[S][2]
 code(S::Symbol) = _currency_data[S][3]
 name(S::Symbol) = _currency_data[S][4]
 
+symbol(::Type{Currency{S}}) where {S} = S
+currency(::Type{Currency{S}}) where {S} = currency(S)
+unit(::Type{Currency{S}}) where {S} = unit(S)
+code(::Type{Currency{S}}) where {S} = code(S)
+name(::Type{Currency{S}}) where {S} = name(S)
+
+symbol(::Currency{S}) where {S} = S
+currency(c::Currency) = c
 unit(::Currency{S}) where {S} = unit(S)
 code(::Currency{S}) where {S} = code(S)
 name(::Currency{S}) where {S} = name(S)