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open System
open Microsoft.FSharp.Text.Lexing
open System.IO
open ForroPrinter
open Resolver
open Lexer
open Parser
open BoogiePrinter
open Translator
let readAndProcess tracing (filename: string) =
try
if tracing then printfn "Forró: version 1.0" else ()
// lex
let f = if filename = null then Console.In else new StreamReader(filename) :> TextReader
let lexbuff = LexBuffer<char>.FromTextReader(f)
// parse
let prog = Parser.start Lexer.tokenize lexbuff
// print the given Forró program
if tracing then
printfn "---------- Given Forró program ----------"
Print prog
else ()
// make sure the program is legal
let rprog = Resolve prog
// translate into Boogie
let bprog = Translate rprog
// print the Boogie program
if tracing then printfn "---------- Resulting Boogie program ----------" else ()
BPrint bprog
// that's it
if tracing then printfn "----------" ; printfn "Done" else ()
with
| ResolutionError(msg) ->
printfn "Resolution error: %s" msg
| ex ->
printfn "Unhandled Exception: %s" ex.Message
let rec start n (args: string []) tracing filename =
if n < args.Length then
let arg = args.[n]
if arg = "/break" then ignore (System.Diagnostics.Debugger.Launch()) else ()
let filename = if arg.StartsWith "/" then filename else arg
start (n+1) args (tracing || arg = "/trace") filename
else
readAndProcess tracing filename
let args = Environment.GetCommandLineArgs()
start 1 args false null
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