FSharp.Text.TypedTemplateProvider 1.0.0

TypedTemplateProvider (aka "Trulla")

...an F# strongly typed text template provider!

Status: Still experimental

The approach of FSharp.Text.TypedTemplateProvider is:

• Provide a text template with:
  • template parameters
  • iterations
  • conditionals
• A model type is infered from a given template.
• An instance of the model is provided by the user for rendering the final template.

Limitations (current)

• The model will only contain fields of type
  • list
  • string (for template holes)
  • bool
• There are currently no partials supported

TODOs

• Shadowing (Explanation)
• Wildcards in bindings
• The begin and end character sequence for template expressions are configurable, and there is no way escaping them. Choose an appropriate sequence of characters that won't occur in your template.

Example

#r "nuget: FSharp.Text.TypedTemplateProvider, 0.0.0-alpha01"

open FSharp.Text.TypedTemplateProvider

let [<Literal>] TestTemplate = """
    Hello {{user.name}}, how are you?

    Your Orders
    ===

    {{for order in orders}}ID: {{order.id}}
    ({{if order.isActive}}active{{else}}inactive{{end}})
    ---
    {{end}}
    """

type Tmpl = Template<TestTemplate>

let root =
    Tmpl.Root(
        [
            Tmpl.order(false, "Order 1")
            Tmpl.order(true, "Order 2")
        ],
        Tmpl.user("Hans"))

Tmpl.Render(root) |> printfn "%s"

This will print:

    Hello Hans, how are you?

    Your Orders
    ===

    ID: Order 1
    (inactive)
    ---
    ID: Order 2
    (active)
    ---