still tinkering

1 files changed, 26 insertions, 6 deletions

diff --git a/interface.go b/interface.go
index 13b2e71..a303515 100644
--- a/interface.go
+++ b/interface.go
@@ -5,24 +5,23 @@ import "go.wit.com/log"
 // this is a work in progress
 
 // WORKING ON START
+
 type initArgvI interface {
-	// Version returns the version string that will be printed on a line by itself
-	// at the top of the help message.
 	InitArgv() (string, string, string)
 }
 
 type mustParseI interface {
-	// Version returns the version string that will be printed on a line by itself
-	// at the top of the help message.
 	MustParse() error
 }
 
 type parseFlagsI interface {
-	// Version returns the version string that will be printed on a line by itself
-	// at the top of the help message.
 	ParseFlags([]string) error
 }
 
+type writeHelpForAutocompleteI interface {
+	WriteHelpForAutocomplete(string, ...string) error
+}
+
 type initGuiI interface {
 	// Version returns the version string that will be printed on a line by itself
 	// at the top of the help message.
@@ -87,6 +86,12 @@ func findAppInfo(tmp interface{}) {
 		panic("you must define in your app the function: func (args) MustParse() error")
 	}
 
+	if tmp, ok := tmp.(writeHelpForAutocompleteI); ok {
+		me.writeHelpForAutocompleteFunc = tmp.WriteHelpForAutocomplete
+	} else {
+		helpWriteHelpForAutocomplete()
+	}
+
 	if tmp, ok := tmp.(parseFlagsI); ok {
 		me.parseFlagsFunc = tmp.ParseFlags
 	} else {
@@ -139,6 +144,21 @@ func findAppInfo(tmp interface{}) {
 	}
 }
 
+// func (p *Parser) WriteHelpForAutocomplete(stderr io.Writer, stdout io.Writer, partial string, subcommand ...string) error {
+// me.pp.WriteHelpForAutocomplete(os.Stderr, os.Stdout, partial, cmd...)
+func helpWriteHelpForAutocomplete() {
+	log.Info("")
+	log.Info("// this will print the help for the subcmd")
+	log.Info("func (args) WriteHelpForAutocomplete(part string, subcmd ...string) error {")
+	log.Info("	return argvpp.WriteHelpForAutocomplete(os.Stderr, os.Stdout, part, subcmd...)")
+	log.Info("}")
+	log.Info("")
+	log.Info("Just copy the argv.template.go file from forge")
+	log.Info("")
+
+	panic("you must define this function in your application code")
+}
+
 func parseFlagsHelp() {
 	log.Info("")
 	log.Info("// this function will send the current argv PB to go-args for parsing")