namespace Fibble.FibLib open System.Net open FParsec open YamlDotNet.Serialization open System.Collections.Generic // ========================================== // 1. AST & Utils // ========================================== module Ast = type Attr = { id: string; classes: string list; kvp: (string * string) list } type InlineNode = | Text of string | RawHtml of string | Emph of InlineNode list | Underline of InlineNode list | Strong of InlineNode list | Strikeout of InlineNode list | Superscript of InlineNode list | Subscript of InlineNode list | Link of attributes: Attr * target: Target | Code of attributes: Attr * text: string | Image of attributes: Attr * altText: InlineNode list * target: Url | Note of BlockNode list | SoftBreak | LineBreak | Expr of code: string * result: string option | Command of tag: string * args: string list * kwargs: Map * children: InlineNode list and BlockNode = | CodeBlock of attributes: Attr * text: string | Figure of attributes: Attr * caption: InlineNode list * blocks: BlockNode list | ListBlock of ListKind | Plain of InlineNode list | Paragraph of children: InlineNode list | Section of level: int * args: (string * string) list * children: InlineNode list and ListKind = | Orderedlist of attributes: Attr * start: int * blocksList: (BlockNode list) list | BulletList of attributes: Attr * blocksList: (BlockNode list) list and Url = string and Target = Url * InlineNode list type Document = BlockNode list type TagRenderer = Map -> string list -> Map -> InlineNode list -> InlineNode let rec stringifyNodes (nodes: InlineNode list) = nodes |> List.map (function | Text t -> t | RawHtml h -> h | Expr(_, Some res) -> res | Expr(code, None) -> sprintf "@(%s)" code // Fallback om den inte evaluerats | _ -> failwith "haha" ) |> String.concat "" module Utils = open Ast let dedentNodes (nodes: InlineNode list) = let fullText = nodes |> List.choose (function Text t -> Some t | _ -> None) |> String.concat "" let lines = fullText.Replace("\r\n", "\n").Split('\n') // 1. Räkna BARA ut minIndent från rader som kommer efter en radbrytning (skippa rad 0) let minIndent = if lines.Length <= 1 then 0 else lines |> Array.skip 1 |> Array.filter (fun l -> not (System.String.IsNullOrWhiteSpace(l))) |> Array.map (fun l -> l.Length - l.TrimStart().Length) |> function [||] -> 0 | arr -> Array.min arr let mutable isFirstText = true let indentStr = "\n" + String.replicate minIndent " " // 2. Applicera formateringen let dedented = nodes |> List.map (function | Text t -> let t1 = t.Replace("\r\n", "\n") // Ta bort inledande mellanslag på den allra första texten direkt efter '{' let t2 = if isFirstText then isFirstText <- false t1.TrimStart(' ', '\t') else t1 // Ta bort minIndent antal mellanslag efter varje radbrytning i noden let t3 = if minIndent > 0 then t2.Replace(indentStr, "\n") else t2 Text t3 | otherNode -> otherNode ) // 3. Städa bort överflödiga radbrytningar och blanksteg i ytterkanterna let rec trimStart = function | Text t :: rest -> let trimmed = t.TrimStart('\n', '\r', ' ', '\t') if trimmed = "" then trimStart rest else Text trimmed :: rest | other -> other let rec trimEnd = function | Text t :: rest -> let trimmed = t.TrimEnd('\n', '\r', ' ', '\t') if trimmed = "" then trimEnd rest else Text trimmed :: rest | other -> other dedented |> trimStart |> List.rev |> trimEnd |> List.rev let positional f: TagRenderer = fun _ (args: string list) _ children -> f args children let onlyArgs f = fun _ args kwargs children -> f args kwargs let getArgIdx (args: (string*string) list) index defaultVal = let unnamed = args |> List.filter (fun (k, _) -> k = "") if index < unnamed.Length then (snd unnamed.[index]).Trim('"') else defaultVal // This gets the arg defined by "key" unless it is not set, it then tries to get it by index. If that fails, it gets the defaultVal let getArg (args: (string * string) list) (key: string) (index: int) (defaultVal: string) = match args |> List.tryFind (fun (k, _) -> k = key) with | Some (_, v) -> v.Trim('"') | None -> getArgIdx args index defaultVal let withArg1 def (f: string -> InlineNode list -> InlineNode) = fun _ args children -> f (getArgIdx args 0 def) children let withArg2 (k1: string) (d1: string) (k2: string) (d2: string) (f: string -> string -> InlineNode list -> InlineNode) = fun _ args children -> f (getArg args k1 0 d1) (getArg args k2 1 d2) children // ========================================== // 2. Parser // ========================================== module Parser = open Ast let pInline, pInlineRef = createParserForwardedToRef() let getSectionLevel (name: string) = if name = "section" then 1 elif name = "subsection" then 2 elif name.StartsWith("sub") && name.EndsWith("section") then (name.Length - 7) / 3 + 1 else 1 let isSection (name: string) = name.EndsWith("section") let pNewline = newline let pNamedArg = // Leta efter "nyckel=värde" attempt (many1Chars (asciiLetter <|> digit <|> anyOf "-_") .>> spaces .>> pchar '=' .>> spaces) .>>. manyChars (noneOf ",]") |>> fun (k, v) -> (k, v.Trim()) let pPositionalArg = // Bara "värde" manyChars (noneOf ",]") |>> fun v -> ("", v.Trim()) let pSingleArg = spaces >>. (pNamedArg <|> pPositionalArg) .>> spaces let pArgs = between (pstring "[") (pstring "]") (sepBy pSingleArg (pchar ',')) >>= fun args -> // Validera att positionella argument alltid kommer först let rec validate canBePositional = function | [] -> preturn args // Allt är okej, returnera listan | ("", _) :: tail -> if not canBePositional then fail "Syntaxfel: Positionella argument får inte komma efter namngivna argument." else validate true tail | _ :: tail -> validate false tail validate true args // --- 1. Måsvinge-parser (för @kommandon) --- // Lägg till en referens för pBody högst upp bland dina referenser // (Bör ligga precis under let pInline, pInlineRef = ...) let pBody, pBodyRef = createParserForwardedToRef() // --- 2. Parentes-parser (för @(...) med sträng-stöd) --- let pParenBody, pParenBodyRef = createParserForwardedToRef() let pFSharpString = let normal = many1Chars (noneOf "\"\\") let escaped = pstring "\\" >>. anyChar |>> sprintf "\\%c" pstring "\"" .>>. manyStrings (normal <|> escaped) .>>. pstring "\"" |>> fun ((start, inner), end_) -> start + inner + end_ pParenBodyRef.Value <- manyStrings (choice [ pFSharpString many1Chars (noneOf "()\"") pchar '(' >>. pParenBody .>> pchar ')' |>> sprintf "(%s)" ]) let pExpr = attempt (pstring "@(") >>. pParenBody .>> pstring ")" |>> fun c -> Expr(c, None) // --- Övriga inline-parsers --- let pMultilineCode = pstring "@\"\"\"" >>. manyCharsTill anyChar (pstring "\"\"\"") |>> fun c -> Expr(c, None) // pInlineCommand använder nu forward-referensen pBodyRef let pInlineCommand = attempt (pchar '@' >>. many1Chars asciiLetter) .>>. opt pArgs .>>. opt pBody |>> fun ((name, argsOpt), bodyOpt) -> let rawArgs = defaultArg argsOpt [] let posArgs = rawArgs |> List.choose (fun (k, v) -> if k = "" then Some v else None) let kwargs = rawArgs |> List.filter (fun (k, _) -> k <> "") |> Map.ofList // dedentNodes anropas här från Utils let children = defaultArg bodyOpt [] |> Utils.dedentNodes Command(name, posArgs, kwargs, children) // Nu när pInlineCommand, pExpr och pMultilineCode är definierade // kan vi skapa pInnerInline let pInnerInline = choice [ attempt pInlineCommand attempt pExpr pMultilineCode many1Chars (noneOf "@}") |>> Text pchar '@' |>> fun _ -> Text "@" ] // Tilldela värdet till pBodyRef pBodyRef.Value <- between (pstring "{") (pstring "}") (many pInnerInline) // Tilldela värdet till pInlineRef pInlineRef.Value <- choice [ pMultilineCode pExpr pInlineCommand many1Chars (noneOf "@{}\n\r") |>> Text attempt (pNewline .>> notFollowedBy pNewline) |>> fun _ -> Text "\n" pchar '@' |>> fun _ -> Text "@" ] // --- Block Parsers --- let pSectionBlock = attempt ( pchar '@' >>. many1Chars asciiLetter >>= fun name -> if isSection name then preturn name else fail "Inte en sektion." ) .>>. opt pArgs .>>. opt pBody |>> fun ((name, argsOpt), bodyOpt) -> Section(getSectionLevel name, defaultArg argsOpt [], defaultArg bodyOpt []) let pParagraphBlock = many1 pInline |>> Paragraph let pBlock = choice [ pSectionBlock; pParagraphBlock ] // --- Dokument Parser --- let pDocument = spaces >>. opt ( pstring "---" >>. manyCharsTill anyChar (attempt (pNewline >>. pstring "---")) |>> fun yamlStr -> let deserializer = DeserializerBuilder().Build() let dict = deserializer.Deserialize>(yamlStr) if isNull dict then Map.empty else dict |> Seq.map (fun kvp -> kvp.Key, kvp.Value) |> Map.ofSeq ) .>> spaces .>>. sepEndBy pBlock (many1 pNewline) .>> eof |>> fun (headerOpt, blocks) -> (defaultArg headerOpt Map.empty, blocks) let parse i = match run pDocument i with | Success(r, _, _) -> r | Failure(e, _, _) -> failwith e // ========================================== // 3. Execution & Printer // ========================================== type IEvaluator = abstract member Evaluate: string -> string module Execution = open Ast let rec transform (metadata: Map) (prelude: Map) (eval: IEvaluator) = function | Command(name, args, kwargs, children) when prelude.ContainsKey name -> prelude.[name] metadata args kwargs (children |> List.map (transform metadata prelude eval)) | Command(n, _, _ ,_) -> failwithf "%s is not a defined command" n | Expr(c, _) -> RawHtml (eval.Evaluate c) | n -> n module Evaluators = open System.IO open System.Text open FSharp.Compiler.Interactive.Shell type FsiEvaluator() = let sbOut = StringBuilder() let sbErr = StringBuilder() let inStream = new StringReader("") let outStream = new StringWriter(sbOut) let errStream = new StringWriter(sbErr) // Initiera FSI-sessionen let fsiConfig = FsiEvaluationSession.GetDefaultConfiguration() let argv = [| "fsi.exe"; "--noninteractive" |] let session = FsiEvaluationSession.Create(fsiConfig, argv, inStream, outStream, errStream) interface IEvaluator with member _.Evaluate(code: string) = sbOut.Clear() |> ignore sbErr.Clear() |> ignore try let result, _warnings = session.EvalInteractionNonThrowing(code) let output = sbOut.ToString() let errors = sbErr.ToString().Trim() // Filtrera bort FSI:s automatiska typsignaturer från utskriften let cleanOutput = output.Replace("\r\n", "\n").Split('\n') |> Array.filter (fun line -> let l = line.TrimStart() not (l.StartsWith("val ") || l.StartsWith("type ") || l.StartsWith("module ") || l.StartsWith("namespace ")) ) |> String.concat "\n" |> fun s -> s.Trim() match result with | Choice1Of2 (Some fsiValue) -> // Plocka ut värdet. Om det är en sträng, undvik "%A" för att slippa citattecken. let valStr = if isNull fsiValue.ReflectionValue then "" else match fsiValue.ReflectionValue with | :? string as s -> s | v -> sprintf "%A" v if System.String.IsNullOrEmpty(cleanOutput) then valStr elif System.String.IsNullOrEmpty(valStr) then cleanOutput else cleanOutput + "\n" + valStr | Choice1Of2 None -> if not (System.String.IsNullOrEmpty(errors)) then cleanOutput + sprintf "%A" errors else cleanOutput | Choice2Of2 ex -> let fsiErrorOutput = if System.String.IsNullOrEmpty(errors) then "Ingen ytterligare FSI-output." else errors sprintf """
FSI Exekveringsfel!
Kod som kördes: %s

Exception: %s
FSI Stderr: 
%s
""" code ex.Message fsiErrorOutput with ex -> sprintf """
Kritiskt FSI-systemfel: %s
""" ex.Message