Unverified Commit 5bb2ae00 authored by Kevin Lyda's avatar Kevin Lyda
Browse files

Initial help implementation

parent e21eb5b0

dclish/dclish.go

+3 −2
Original line number Diff line number Diff line
@@ -35,7 +35,6 @@ type Commands map[string]*Command 
func (c Commands) ParseAndRun(line string) error {

	// TODO: this doesn't handle a DCL command line completely.

	words := strings.Fields(line)

	fmt.Printf("TODO ParseAndRun need to parse flags: %s\n", words)

	cmd, ok := c[strings.ToUpper(words[0])]

	if !ok {

		fmt.Printf("ERROR: Unknown command '%s'\n", words[0])
@@ -52,6 +51,7 @@ func (c Commands) ParseAndRun(line string) error { 
	if len(words) == 1 {

		return cmd.Action(cmd)

	}

	// TODO: need to clean this up.

	for i := range words[1:] {

		if strings.HasPrefix(words[i], "/") {

			flag, val, assigned := strings.Cut(words[i], "=")
@@ -63,7 +63,6 @@ func (c Commands) ParseAndRun(line string) error { 
				}

				flg.Value = val

			} else {

				// TODO: handle toggle flag.

				wordup := strings.ToUpper(words[i])

				value := "true"

				if strings.HasPrefix(wordup, "/NO") {
@@ -76,6 +75,8 @@ func (c Commands) ParseAndRun(line string) error { 
				}

				flg.Value = value

			}

		} else {

			cmd.Args = append(cmd.Args, words[i])

		}

	}

	return cmd.Action(cmd)

repl/command.go

+220 −438

File changed.

Preview size limit exceeded, changes collapsed.

repl/help.go

+18 −1
Original line number Diff line number Diff line
@@ -2,10 +2,27 @@ 
package repl



import (

	"fmt"

	"strings"



	"git.lyda.ie/kevin/bulletin/dclish"

)



var helpmap map[string]string



// ActionHelp handles the `HELP` command.

func ActionHelp(_ *dclish.Command) error {

func ActionHelp(cmd *dclish.Command) error {

	if len(cmd.Args) == 0 {

		fmt.Printf("%s\n", cmd.Description)

		return nil

	}

	wordup := strings.ToUpper(cmd.Args[0])

	helptext, ok := helpmap[wordup]

	if !ok {

		// TODO: add a help structure for topics that are not command.

		fmt.Printf("ERROR: Topic not found: '%s'.\n", cmd.Args[0])

		return nil

	}

	fmt.Printf("%s\n", helptext)

	return nil

}