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format.fsx
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format.fsx
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#r "packages/FSharp.Data/lib/net40/FSharp.Data.dll"
#r "packages/FsPickler/lib/net40/FsPickler.dll"
#r "packages/FSharp.Compiler.Service/lib/net45/FSharp.Compiler.Service.dll"
#r "packages/Chessie/lib/net40/Chessie.dll"
#r "packages/Paket.Core/lib/net45/Paket.Core.dll"
#r "packages/Suave/lib/net40/Suave.dll"
#load "packages/FSharp.Formatting/FSharp.Formatting.fsx"
#load "paket-files/raw.githubusercontent.com/utils.fs"
#load "paket-files/raw.githubusercontent.com/parser.fs"
open System
open System.IO
open FSharp.Literate
open FSharp.CodeFormat
open Nessos.FsPickler
open FSharp.Markdown
open FSharp.Data
// -------------------------------------------------------------------------------------------------
// Formatting raw snippets offline
// -------------------------------------------------------------------------------------------------
type Index = JsonProvider<"data/index.json">
let snippets = Index.GetSample().Snippets
let data = __SOURCE_DIRECTORY__ + "/data"
let pickler = FsPickler.CreateXmlSerializer()
let formatSnippet (parsedFile:string) (formattedFile:string) source nuget =
if Array.isEmpty nuget |> not then
printfn "%s\n %A\n" parsedFile nuget
let doc = FsSnip.Parser.parseScript "NA" source nuget
let html = Literate.WriteHtml(doc, "fs", true, true)
File.WriteAllText(formattedFile, html)
use wr = new StreamWriter(parsedFile)
pickler.Serialize(wr, doc)
let processSnippets () =
for s in snippets do
printfn "Processing snippet: %d" s.Id
for v in 0 .. s.Versions - 1 do
let source = File.ReadAllText(sprintf "%s/source/%d/%d" data s.Id v)
let dir = sprintf "%s/parsed/%d" data s.Id
if not (Directory.Exists(dir)) then Directory.CreateDirectory(dir) |> ignore
let dir = sprintf "%s/formatted/%d" data s.Id
if not (Directory.Exists(dir)) then Directory.CreateDirectory(dir) |> ignore
let formattedFile = sprintf "%s/formatted/%d/%d" data s.Id v
let parsedFile = sprintf "%s/parsed/%d/%d" data s.Id v
if not (File.Exists(formattedFile)) || not (File.Exists(parsedFile)) then
formatSnippet parsedFile formattedFile source s.References
// Format all snippets - takes a bit of time!
processSnippets()
// -------------------------------------------------------------------------------------------------
// Sample - how to access data from the formatted snippets?
// -------------------------------------------------------------------------------------------------
// Pick one of the snippets
let snippet = snippets |> Seq.nth 0
// Pick version in the range [0 .. snippet.Versions - 1]
let version = 0
// Read the pickled version so that we don't have to re-parse it
printfn "Reading snippet: %d/%d" snippet.Id version
let parsedFile = sprintf "%s/parsed/%d/%d" data snippet.Id version
let rd = new StreamReader(parsedFile)
let doc = pickler.Deserialize<LiterateDocument>(rd)
for p in doc.Paragraphs do
match p with
| Matching.LiterateParagraph(FormattedCode lines) ->
// Parsed and type checked F# code as a sequence of lines
for (Line tokens) in lines do
for token in tokens do
match token with
| TokenSpan.Token(kind, s, tip) ->
// Ordinary F# langauge token
printf "%s" s
match tip with
| Some tip ->
// This token has an associated tool-tip which shows
// its type and other documentation (when available)
printf "(^)"
| None -> ()
| _ ->
// There are some other cases here for "omitted" code,
// F# interactive output and errors. I think only omitted
// may appear in fssnips, but not very often
()
printfn ""
| Heading(n, s) ->
// Snippet may contain heading (when there are multiple code blocks, e.g. http://fssnip.net/m)
printfn "Heading %d: %A" n s
| _ -> failwith "Unexpected content"