Math.NET Numerics
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//=========================================================================
// (c) Microsoft Corporation 2005-2009.
//=========================================================================
namespace Microsoft.FSharp.Core
open System.Diagnostics
open Microsoft.FSharp.Core
open Microsoft.FSharp.Core.LanguagePrimitives.IntrinsicOperators
open Microsoft.FSharp.Core.Operators
open Microsoft.FSharp.Collections
[<CompilationRepresentation(CompilationRepresentationFlags.ModuleSuffix)>]
[<RequireQualifiedAccess>]
module String =
let inline checkNonNull arg =
match box arg with null -> nullArg "str" | _ -> ()
[<CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1709:IdentifiersShouldBeCasedCorrectly"); CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1707:IdentifiersShouldNotContainUnderscores"); CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1704:IdentifiersShouldBeSpelledCorrectly")>]
let concat sep (strings : seq<string>) =
System.String.Join(sep, Seq.to_array strings)
[<CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1709:IdentifiersShouldBeCasedCorrectly"); CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1707:IdentifiersShouldNotContainUnderscores"); CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1704:IdentifiersShouldBeSpelledCorrectly")>]
let iter (f : (char -> unit)) (str:string) =
checkNonNull str
for i = 0 to str.Length - 1 do
f str.[i]
[<CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1709:IdentifiersShouldBeCasedCorrectly"); CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1707:IdentifiersShouldNotContainUnderscores"); CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1704:IdentifiersShouldBeSpelledCorrectly")>]
let iteri f (str:string) =
checkNonNull str
for i = 0 to str.Length - 1 do
f i str.[i]
[<CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1709:IdentifiersShouldBeCasedCorrectly"); CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1707:IdentifiersShouldNotContainUnderscores"); CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1704:IdentifiersShouldBeSpelledCorrectly")>]
let map (f: char -> char) (str:string) =
checkNonNull str
let res = new System.Text.StringBuilder(str.Length)
str |> iter (fun c -> res.Append(f c) |> ignore);
res.ToString()
[<CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1709:IdentifiersShouldBeCasedCorrectly"); CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1707:IdentifiersShouldNotContainUnderscores"); CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1704:IdentifiersShouldBeSpelledCorrectly")>]
let mapi (f: int -> char -> char) (str:string) =
checkNonNull str
let res = new System.Text.StringBuilder(str.Length)
str |> iteri (fun i c -> res.Append(f i c) |> ignore);
res.ToString()
[<CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1709:IdentifiersShouldBeCasedCorrectly"); CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1707:IdentifiersShouldNotContainUnderscores"); CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1704:IdentifiersShouldBeSpelledCorrectly")>]
let collect (f: char -> string) (str:string) =
checkNonNull str
let res = new System.Text.StringBuilder(str.Length)
str |> iter (fun c -> res.Append(f c) |> ignore);
res.ToString()
[<CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1709:IdentifiersShouldBeCasedCorrectly"); CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1707:IdentifiersShouldNotContainUnderscores"); CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1704:IdentifiersShouldBeSpelledCorrectly")>]
let init (count:int) (f: int-> string) =
if count < 0 then invalidArg "n" "the length may not be negative"
let res = new System.Text.StringBuilder(count)
for i = 0 to count - 1 do
res.Append(f i) |> ignore;
res.ToString()
[<CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1709:IdentifiersShouldBeCasedCorrectly"); CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1707:IdentifiersShouldNotContainUnderscores"); CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1704:IdentifiersShouldBeSpelledCorrectly")>]
let replicate (count:int) (str:string) =
checkNonNull str
let res = new System.Text.StringBuilder(str.Length)
for i = 0 to count - 1 do
res.Append(str) |> ignore;
res.ToString()
[<CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1709:IdentifiersShouldBeCasedCorrectly"); CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1707:IdentifiersShouldNotContainUnderscores"); CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1704:IdentifiersShouldBeSpelledCorrectly")>]
let map_concat f str = collect f str
[<CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1709:IdentifiersShouldBeCasedCorrectly"); CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1707:IdentifiersShouldNotContainUnderscores"); CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1704:IdentifiersShouldBeSpelledCorrectly")>]
let forall f (str:string) =
checkNonNull str
let rec check i = (i >= str.Length) || (f str.[i] && check (i+1))
check 0
[<CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1709:IdentifiersShouldBeCasedCorrectly"); CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1707:IdentifiersShouldNotContainUnderscores"); CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1704:IdentifiersShouldBeSpelledCorrectly")>]
let for_all f str = forall f str
[<CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1709:IdentifiersShouldBeCasedCorrectly"); CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1707:IdentifiersShouldNotContainUnderscores"); CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1704:IdentifiersShouldBeSpelledCorrectly")>]
let exists f (str:string) =
checkNonNull str
let rec check i = (i < str.Length) && (f str.[i] || check (i+1))
check 0
[<CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1709:IdentifiersShouldBeCasedCorrectly"); CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1707:IdentifiersShouldNotContainUnderscores"); CodeAnalysis.SuppressMessage("Microsoft.Naming","CA1704:IdentifiersShouldBeSpelledCorrectly")>]
let length (str:string) =
checkNonNull str
str.Length