mirror of https://github.com/zellyn/diskii.git
93 lines
2.6 KiB
Go
93 lines
2.6 KiB
Go
// Copyright © 2016 Zellyn Hunter <zellyn@gmail.com>
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package cmd
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import (
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"fmt"
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"os"
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"github.com/spf13/cobra"
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"github.com/zellyn/diskii/basic"
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"github.com/zellyn/diskii/basic/applesoft"
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"github.com/zellyn/diskii/helpers"
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)
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// applesoftCmd represents the applesoft command
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var applesoftCmd = &cobra.Command{
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Use: "applesoft",
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Short: "work with applesoft programs",
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Long: `diskii applesoft contains the subcommands useful for working
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with Applesoft programs.`,
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}
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func init() {
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RootCmd.AddCommand(applesoftCmd)
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// Here you will define your flags and configuration settings.
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// Cobra supports Persistent Flags which will work for this command
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// and all subcommands, e.g.:
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// applesoftCmd.PersistentFlags().String("foo", "", "A help for foo")
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// Cobra supports local flags which will only run when this command
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// is called directly, e.g.:
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// applesoftCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
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}
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// ----- applesoft decode command -------------------------------------------
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var location uint16 // flag for starting location in memory
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var rawControlCodes bool // flag for whether to skip escaping control codes
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// decodeCmd represents the decode command
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var decodeCmd = &cobra.Command{
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Use: "decode filename",
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Short: "convert a binary applesoft program to a LISTing",
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Long: `
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decode converts a binary Applesoft program to a text LISTing.
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Examples:
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decode filename # read filename
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decode - # read stdin`,
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Run: func(cmd *cobra.Command, args []string) {
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if err := runDecode(args); err != nil {
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fmt.Fprintln(os.Stderr, err.Error())
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os.Exit(-1)
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}
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},
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}
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func init() {
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applesoftCmd.AddCommand(decodeCmd)
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// Here you will define your flags and configuration settings.
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// Cobra supports Persistent Flags which will work for this command
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// and all subcommands, e.g.:
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// decodeCmd.PersistentFlags().String("foo", "", "A help for foo")
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decodeCmd.Flags().Uint16VarP(&location, "location", "l", 0x801, "Starting program location in memory")
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decodeCmd.Flags().BoolVarP(&rawControlCodes, "raw", "r", false, "Print raw control codes (no escaping)")
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}
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// runDecode performs the actual decode logic.
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func runDecode(args []string) error {
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if len(args) != 1 {
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return fmt.Errorf("decode expects one argument: the filename (or - for stdin)")
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}
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contents, err := helpers.FileContentsOrStdIn(args[0])
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if err != nil {
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return err
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}
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listing, err := applesoft.Decode(contents, location)
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if err != nil {
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return err
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}
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if rawControlCodes {
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os.Stdout.WriteString(listing.String())
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} else {
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os.Stdout.WriteString(basic.ChevronControlCodes(listing.String()))
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}
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return nil
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}
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