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Trying to add external user-defined functions
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,3 @@ | ||
| module github.com/Jamlie/Jamlang | ||
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| go 1.21.0 |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,203 @@ | ||
| package jamlang | ||
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| import ( | ||
| "bufio" | ||
| "flag" | ||
| "fmt" | ||
| "io" | ||
| "io/ioutil" | ||
| "net/http" | ||
| "os" | ||
| "strings" | ||
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| "github.com/Jamlie/Jamlang/parser" | ||
| "github.com/Jamlie/Jamlang/runtimelang" | ||
| ) | ||
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| func Repl(env *runtimelang.Environment) { | ||
| parser := parser.NewParser() | ||
| fmt.Println("Repl mode. Type 'exit' to exit.") | ||
| for { | ||
| fmt.Print("> ") | ||
| scanner := bufio.NewScanner(os.Stdin) | ||
| scanner.Scan() | ||
| text := scanner.Text() | ||
| if text == "exit" { | ||
| break | ||
| } | ||
| if text == "" { | ||
| continue | ||
| } | ||
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| program := parser.ProduceAST(text) | ||
| runtimeValue, err := runtimelang.Evaluate(&program, *env) | ||
| if err != nil { | ||
| fmt.Println(err) | ||
| os.Exit(0) | ||
| } | ||
| fmt.Println(runtimeValue.Get()) | ||
| } | ||
| } | ||
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| func CallMain(env *runtimelang.Environment) { | ||
| runFlag := flag.Bool("r", false, "Run a file") | ||
| helpFlag := flag.Bool("h", false, "Help") | ||
| installFlag := flag.Bool("i", false, "Install a package") | ||
| flag.Parse() | ||
| args := flag.Args() | ||
| if flag.NFlag() == 0 && len(args) == 0 { | ||
| Repl(env) | ||
| } else { | ||
| if *runFlag { | ||
| if len(args) < 1 { | ||
| fmt.Println("No file specified") | ||
| os.Exit(0) | ||
| } | ||
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| if !strings.HasSuffix(args[0], ".jam") { | ||
| fmt.Println("File must have .jam extension") | ||
| os.Exit(0) | ||
| } | ||
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| data, err := ioutil.ReadFile(args[0]) | ||
| if err != nil { | ||
| fmt.Println(err) | ||
| os.Exit(0) | ||
| } | ||
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| program := parser.NewParser().ProduceAST(string(data)) | ||
| _, err = runtimelang.Evaluate(&program, *env) | ||
| if err != nil { | ||
| fmt.Println(err) | ||
| os.Exit(0) | ||
| } | ||
| } else if *helpFlag { | ||
| fmt.Println("Usage: jamlang [options] [file]") | ||
| fmt.Println("Options:") | ||
| fmt.Println(" -r\t\tRun a file") | ||
| fmt.Println(" -h\t\tShow this help message") | ||
| fmt.Println(" run\t\tRun a file") | ||
| fmt.Println(" help\t\tShow this help message") | ||
| } else if *installFlag { | ||
| if len(args) < 1 { | ||
| fmt.Println("No package specified") | ||
| os.Exit(0) | ||
| } | ||
| if _, err := os.Stat("std/" + args[0] + ".jam"); err == nil { | ||
| fmt.Println("Library already installed") | ||
| os.Exit(0) | ||
| } | ||
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| if args[0] == "math" { | ||
| getLibrary("math") | ||
| } else if args[0] == "random" { | ||
| getLibrary("random") | ||
| } else if args[0] == "algorithm" { | ||
| getLibrary("algorithm") | ||
| } else if args[0] == "linkedlist" { | ||
| getLibrary("linkedlist") | ||
| } else { | ||
| fmt.Println("Unknown library") | ||
| os.Exit(0) | ||
| } | ||
| } else { | ||
| option := args[0] | ||
| if option == "run" { | ||
| if len(args) < 2 { | ||
| fmt.Println("No file specified") | ||
| os.Exit(0) | ||
| } | ||
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| if !strings.HasSuffix(args[1], ".jam") { | ||
| fmt.Println("File must have .jam extension") | ||
| os.Exit(0) | ||
| } | ||
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| data, err := ioutil.ReadFile(args[1]) | ||
| if err != nil { | ||
| fmt.Println(err) | ||
| os.Exit(0) | ||
| } | ||
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| parser := parser.NewParser() | ||
| program := parser.ProduceAST(string(data)) | ||
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| _, err = runtimelang.Evaluate(&program, *env) | ||
| if err != nil { | ||
| fmt.Println(err) | ||
| os.Exit(0) | ||
| } | ||
| } else if args[0] == "help" { | ||
| fmt.Println("Usage: jamlang [options] [file]") | ||
| fmt.Println("Options:") | ||
| fmt.Println(" -r\t\tRun a file") | ||
| fmt.Println(" -h\t\tShow this help message") | ||
| fmt.Println(" -i\t\tInstall a library") | ||
| fmt.Println(" run\t\tRun a file") | ||
| fmt.Println(" help\t\tShow this help message") | ||
| fmt.Println(" install\tInstall a library") | ||
| } else if args[0] == "install" { | ||
| if len(args) < 2 { | ||
| fmt.Println("Usage: jamlang install [library]") | ||
| os.Exit(0) | ||
| } | ||
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| if _, err := os.Stat("std/" + args[1] + ".jam"); err == nil { | ||
| fmt.Println("Library already installed") | ||
| os.Exit(0) | ||
| } | ||
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| if args[1] == "math" { | ||
| getLibrary("math") | ||
| } else if args[1] == "random" { | ||
| getLibrary("random") | ||
| } else if args[1] == "algorithm" { | ||
| getLibrary("algorithm") | ||
| } else if args[1] == "linkedlist" { | ||
| getLibrary("linkedlist") | ||
| }else { | ||
| fmt.Println("Unknown library") | ||
| os.Exit(0) | ||
| } | ||
| } else { | ||
| fmt.Println("Unknown option") | ||
| fmt.Println("Usage: jamlang [run] [file]") | ||
| fmt.Println("Usage: jamlang -r [file]") | ||
| fmt.Println("Usage: jamlang -i [library]") | ||
| fmt.Println("Usage: jamlang install [library]") | ||
| fmt.Println("Usage: jamlang -h") | ||
| fmt.Println("Usage: jamlang help") | ||
| fmt.Println("Usage: jamlang") | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| func getLibrary(name string) { | ||
| link := fmt.Sprintf("https://raw.githubusercontent.com/Jamlie/Jamlang/main/std/%s.jam", name) | ||
| resp, err := http.Get(link) | ||
| if err != nil { | ||
| fmt.Println(err) | ||
| os.Exit(0) | ||
| } | ||
| defer resp.Body.Close() | ||
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| if _, err := os.Stat("std"); os.IsNotExist(err) { | ||
| os.Mkdir("std", 0755) | ||
| } | ||
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| file, err := os.Create("std/" + name + ".jam") | ||
| if err != nil { | ||
| fmt.Println(err) | ||
| os.Exit(0) | ||
| } | ||
| defer file.Close() | ||
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| _, err = io.Copy(file, resp.Body) | ||
| if err != nil { | ||
| fmt.Println(err) | ||
| os.Exit(0) | ||
| } | ||
| } | ||
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