80 lines
1.7 KiB
Markdown
80 lines
1.7 KiB
Markdown
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# scpt
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scpt is an applescript-inspired scripting language written for fun and to see if I could.
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[](https://pkg.go.dev/gitea.arsenm.dev/Arsen6331/scpt)
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---
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### Usage
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scpt is to be used as a library imported into Go. A basic interpreter with no extra functionality would look like this:
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```go
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package main
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import (
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"gitea.arsenm.dev/Arsen6331/scpt"
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"log"
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"os"
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"path/filepath"
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)
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func main() {
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filename := os.Args[1]
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file, err := os.Open(filepath.Clean(filename))
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if err != nil {
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log.Fatalln(err)
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}
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ast, err := scpt.Parse(file)
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if err != nil {
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log.Fatalln(err)
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}
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err = ast.Execute()
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if err != nil {
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log.Fatalln(err)
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}
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}
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```
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---
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### Basic Syntax
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The basic syntax of scpt can be learned from the test.scpt file.
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---
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### Default Functions
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scpt comes with the following default functions:
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- `str`: Convert value to string
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- `num`: Parse string to number (`float64`)
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- `bool`: Parse string to boolean
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- `break`: Break out of loop (Errors if not in loop)
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- `append`: Return an array with given items appended
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- `exit`: Exit with given exit code
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- `return`: Return value in function (Errors if not within function)
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- `print`: Print using `fmt.Println()`
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---
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### Adding functionality:
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Adding functionality is simple and requires a call to `scpt.AddFuncs()` or `scpt.AddVars()`. Here are some examples:
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```go
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scpt.AddFuncs(scpt.FuncMap{
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"my-function": myFunction
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})
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```
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Where `myFunction` is:
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```go
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func myFunction(args map[string]interface{}) (interface{}, error) {
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fmt.Println(args)
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return nil, nil
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}
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```
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After the call to `scpt.AddFuncs()`, `my-function` can be used to run the function from within an scpt script. Variables work similarly.
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