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XmlInference.fs
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XmlInference.fs
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// ----------------------------------------------------------------------------
// Original Xml type provider
// (c) Tomas Petricek - tomasP.net, Available under Apache 2.0 license.
// ----------------------------------------------------------------------------
namespace FSharpx.TypeProviders
open System
open System.Xml.Linq
open FSharpx.TypeProviders.DSL
open System.Collections.Generic
open FSharpx.TypeProviders.Inference
// ------------------------------------------------------------------------------------------------
// Runtime objects
// ------------------------------------------------------------------------------------------------
type TypedXElement(element:XElement) =
member x.Element = element
type TypedXDocument(document:XDocument) =
member x.Document = document
// ------------------------------------------------------------------------------------------------
// Infers the structure of XML file from data
// ------------------------------------------------------------------------------------------------
module XmlInference =
let rec provideElement name (elements:seq<XElement>) =
CompoundProperty(name,true,collectElements elements,collectAttributes elements)
and collectAttributes (elements:seq<XElement>) =
[ for el in elements do
for attr in el.Attributes() do
yield attr.Name.LocalName, attr ]
|> Seq.groupBy fst
|> Seq.map (fun (name, attrs) ->
SimpleProperty(
name,
attrs |> Seq.map (fun (_, a) -> a.Value) |> inferType,
Seq.length attrs < Seq.length elements))
and collectElements (elements:seq<XElement>) =
[ for el in elements do
for child in el.Elements() do
yield child.Name.LocalName, child ]
|> Seq.groupBy fst
|> Seq.map (fun (n, v) -> provideElement n (Seq.map snd v))