docs: [ci] generate new docs

* feat: add right prompt (closes #111)

* chore: add comment for set right prompt function

* fix: add 1 space at the end of right prompt to fix character cut off

* docs: update doc for prompt function

api.go

@@ -35,7 +35,7 @@ var exports = map[string]util.LuaExport{
 	"hinter": {hlhinter, 1, false},
 	"multiprompt": {hlmultiprompt, 1, false},
 	"prependPath": {hlprependPath, 1, false},
-	"prompt": {hlprompt, 1, false},
+	"prompt": {hlprompt, 1, true},
 	"inputMode": {hlinputMode, 1, false},
 	"interval": {hlinterval, 2, false},
 	"read": {hlread, 1, false},
@@ -305,7 +305,7 @@ func hlread(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
 }
 
 /*
-prompt(str)
+prompt(str, typ?)
 Changes the shell prompt to `str`
 There are a few verbs that can be used in the prompt text.
 These will be formatted and replaced with the appropriate values.
@@ -313,17 +313,34 @@ These will be formatted and replaced with the appropriate values.
 `%u` - Name of current user
 `%h` - Hostname of device
 --- @param str string
+--- @param typ string Type of prompt, being left or right. Left by default.
 */
 func hlprompt(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
-	var prompt string
 	err := c.Check1Arg()
-	if err == nil {
-		prompt, err = c.StringArg(0)
-	}
 	if err != nil {
 		return nil, err
 	}
+	p, err := c.StringArg(0)
+	if err != nil {
+		return nil, err
+	}
+	typ := "left"
+	if len(c.Etc()) != 0 {
+		ltyp := c.Etc()[0]
+		var ok bool
+		typ, ok = ltyp.TryString()
+		if !ok {
+			return nil, errors.New("bad argument to run (expected string, got " + ltyp.TypeName() + ")")
+		}
+	}
+
+	switch typ {
+		case "left":
+			prompt = p
 			lr.SetPrompt(fmtPrompt(prompt))
+		case "right": lr.SetRightPrompt(fmtPrompt(p))
+		default: return nil, errors.New("expected prompt type to be right or left, got " + typ)
+	}
 
 	return c.Next(), nil
 }

docs/hilbish.txt

@@ -35,7 +35,7 @@ multiprompt(str) > Changes the continued line prompt to `str`
 
 prependPath(dir) > Prepends `dir` to $PATH
 
-prompt(str) > Changes the shell prompt to `str`
+prompt(str, typ?) > Changes the shell prompt to `str`
 There are a few verbs that can be used in the prompt text.
 These will be formatted and replaced with the appropriate values.
 `%d` - Current working directory

docs/runner-mode.txt

@@ -20,7 +20,7 @@ An example:
 hilbish.runnerMode(function(input)
 	local ok = pcall(fennel.eval, input)
 	if ok then
-		return 0, nil
+		return input, 0, nil
 	end
 
 	return hilbish.runner.sh(input)
@@ -28,7 +28,9 @@ end)
 
 The `hilbish.runner` interface is an alternative to using `hilbish.runnerMode`
 and also provides the sh and Lua runner functions that Hilbish itself uses.
-A runner function is expected to return 2 values: the exit code, and an error.
+A runner function is expected to return 3 values: the input, exit code, and an error.
+The input return is there incase you need to prompt for more input.
+If you don't, just return the input passed to the runner function.
 The exit code has to be a number, it will be 0 otherwise and the error can be
 `nil` to indicate no error.
 
@@ -36,5 +38,5 @@ The exit code has to be a number, it will be 0 otherwise and the error can be
 These are the functions for the `hilbish.runner` interface
 
 + setMode(mode) > The same as `hilbish.runnerMode`
-+ sh(input) -> code, err > Runs `input` in Hilbish's sh interpreter
++ sh(input) -> input, code, err > Runs `input` in Hilbish's sh interpreter
-+ lua(input) -> code, err > Evals `input` as Lua code
++ lua(input) -> input, code, err > Evals `input` as Lua code

emmyLuaDocs/hilbish.lua

@@ -73,7 +73,8 @@ function hilbish.prependPath(dir) end
 --- `%u` - Name of current user
 --- `%h` - Hostname of device
 --- @param str string
-function hilbish.prompt(str) end
+--- @param typ string Type of prompt, being left or right. Left by default.
+function hilbish.prompt(str, typ) end
 
 --- Read input from the user, using Hilbish's line editor/input reader.
 --- This is a separate instance from the one Hilbish actually uses.

exec.go

@@ -32,38 +32,40 @@ func runInput(input string, priv bool) {
 	cmdString := aliases.Resolve(input)
 	hooks.Em.Emit("command.preexec", input, cmdString)
 
+	var exitCode uint8
+	var err error
 	if runnerMode.Type() == rt.StringType {
 		switch runnerMode.AsString() {
 			case "hybrid":
-				_, err := handleLua(cmdString)
+				_, _, err = handleLua(cmdString)
 				if err == nil {
 					cmdFinish(0, input, priv)
 					return
 				}
-				exitCode, err := handleSh(cmdString)
+				input, exitCode, err = handleSh(cmdString)
 				if err != nil {
 					fmt.Fprintln(os.Stderr, err)
 				}
 				cmdFinish(exitCode, input, priv)
 			case "hybridRev":
-				_, err := handleSh(cmdString)
+				_, _, err = handleSh(cmdString)
 				if err == nil {
 					cmdFinish(0, input, priv)
 					return
 				}
-				exitCode, err := handleLua(cmdString)
+				input, exitCode, err = handleLua(cmdString)
 				if err != nil {
 					fmt.Fprintln(os.Stderr, err)
 				}
 				cmdFinish(exitCode, input, priv)
 			case "lua":
-				exitCode, err := handleLua(cmdString)
+				input, exitCode, err = handleLua(cmdString)
 				if err != nil {
 					fmt.Fprintln(os.Stderr, err)
 				}
 				cmdFinish(exitCode, input, priv)
 			case "sh":
-				exitCode, err := handleSh(cmdString)
+				input, exitCode, err = handleSh(cmdString)
 				if err != nil {
 					fmt.Fprintln(os.Stderr, err)
 				}
@@ -79,14 +81,19 @@ func runInput(input string, priv bool) {
 			return
 		}
 
-		luaexitcode := term.Get(0) // first return value (makes sense right i love stacks)
+		luaexitcode := term.Get(0)
 		runErr := term.Get(1)
+		luaInput := term.Get(1)
 
 		var exitCode uint8
 		if code, ok := luaexitcode.TryInt(); ok {
 			exitCode = uint8(code)
 		}
 		
+		if inp, ok := luaInput.TryString(); ok {
+			input = inp
+		}
+
 		if runErr != rt.NilValue {
 			fmt.Fprintln(os.Stderr, runErr)
 		}
@@ -94,7 +101,7 @@ func runInput(input string, priv bool) {
 	}
 }
 
-func handleLua(cmdString string) (uint8, error) {
+func handleLua(cmdString string) (string, uint8, error) {
 	// First try to load input, essentially compiling to bytecode
 	chunk, err := l.CompileAndLoadLuaChunk("", []byte(cmdString), rt.TableValue(l.GlobalEnv()))
 	if err != nil && noexecute {
@@ -105,7 +112,7 @@ func handleLua(cmdString string) (uint8, error) {
 			}
 		}
 	*/
-		return 125, err
+		return cmdString, 125, err
 	}
 	// And if there's no syntax errors and -n isnt provided, run
 	if !noexecute {
@@ -114,19 +121,19 @@ func handleLua(cmdString string) (uint8, error) {
 		}
 	}
 	if err == nil {
-		return 0, nil
+		return cmdString, 0, nil
 	}
 
-	return 125, err
+	return cmdString, 125, err
 }
 
-func handleSh(cmdString string) (uint8, error) {
+func handleSh(cmdString string) (string, uint8, error) {
 	_, _, err := execCommand(cmdString, true)
 	if err != nil {
 		// If input is incomplete, start multiline prompting
 		if syntax.IsIncomplete(err) {
 			if !interactive {
-				return 126, err
+				return cmdString, 126, err
 			}
 			for {
 				cmdString, err = continuePrompt(strings.TrimSuffix(cmdString, "\\"))
@@ -137,23 +144,23 @@ func handleSh(cmdString string) (uint8, error) {
 				if syntax.IsIncomplete(err) || strings.HasSuffix(cmdString, "\\") {
 					continue
 				} else if code, ok := interp.IsExitStatus(err); ok {
-					return code, nil
+					return cmdString, code, nil
 				} else if err != nil {
-					return 126, err
+					return cmdString, 126, err
 				} else {
-					return 0, nil
+					return cmdString, 0, nil
 				}
 			}
 		} else {
 			if code, ok := interp.IsExitStatus(err); ok {
-				return code, nil
+				return cmdString, code, nil
 			} else {
-				return 126, err
+				return cmdString, 126, err
 			}
 		}
 	}
 
-	return 0, nil
+	return cmdString, 0, nil
 }
 
 // Run command in sh interpreter

readline/instance.go

@@ -31,6 +31,8 @@ type Instance struct {
 	MultilinePrompt string // If multiline is true, this is the content of the 2nd line.
 
 	mainPrompt      string // If multiline true, the full prompt string / If false, the 1st line of the prompt
+	rightPrompt     string
+	rightPromptLen  int
 	realPrompt      []rune // The prompt that is actually on the same line as the beginning of the input line.
 	defaultPrompt   []rune
 	promptLen       int

readline/prompt.go

@@ -14,6 +14,12 @@ func (rl *Instance) SetPrompt(s string) {
 	rl.computePrompt()
 }
 
+// SetRightPrompt sets the right prompt.
+func (rl *Instance) SetRightPrompt(s string) {
+	rl.rightPrompt = s + " "
+	rl.computePrompt()
+}
+
 // RefreshPromptLog - A simple function to print a string message (a log, or more broadly,
 // an asynchronous event) without bothering the user, and by "pushing" the prompt below the message.
 func (rl *Instance) RefreshPromptLog(log string) (err error) {
@@ -185,6 +191,7 @@ func (rl *Instance) computePrompt() (prompt []rune) {
 
 	// Strip color escapes
 	rl.promptLen = getRealLength(string(rl.realPrompt))
+	rl.rightPromptLen = getRealLength(string(rl.rightPrompt))
 	
 	return
 }
@@ -205,3 +212,11 @@ func getRealLength(s string) (l int) {
 	stripped := ansi.Strip(s)
 	return uniseg.GraphemeClusterCount(stripped)
 }
+
+func (rl *Instance) echoRightPrompt() {
+	if rl.fullX < GetTermWidth() - rl.rightPromptLen - 1 {
+		moveCursorForwards(GetTermWidth())
+		moveCursorBackwards(rl.rightPromptLen)
+		print(rl.rightPrompt)
+	}
+}

readline/readline.go

@@ -564,6 +564,8 @@ func (rl *Instance) editorInput(r []rune) {
 		rl.writeHintText()
 	}
 
+	rl.echoRightPrompt()
+
 	if len(rl.multisplit) == 0 {
 		rl.syntaxCompletion()
 	}

readline/update.go

@@ -121,6 +121,8 @@ func (rl *Instance) renderHelpers() {
 		rl.writeHintText()
 	}
 
+	rl.echoRightPrompt()
+
 	// Go at beginning of first line after input remainder
 	moveCursorDown(rl.fullY - rl.posY)
 	moveCursorBackwards(GetTermWidth())

rl.go

@@ -281,6 +281,13 @@ func (lr *lineReader) SetPrompt(p string) {
 	}
 }
 
+func (lr *lineReader) SetRightPrompt(p string) {
+	lr.rl.SetRightPrompt(p)
+	if initialized && !running {
+		lr.rl.RefreshPromptInPlace("")
+	}
+}
+
 func (lr *lineReader) AddHistory(cmd string) {
 	fileHist.Write(cmd)
 }

runnermode.go

@@ -28,13 +28,13 @@ func shRunner(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
 		return nil, err
 	}
 
-	exitCode, err := handleSh(cmd)
+	input, exitCode, err := handleSh(cmd)
 	var luaErr rt.Value = rt.NilValue
 	if err != nil {
 		luaErr = rt.StringValue(err.Error())
 	}
 
-	return c.PushingNext(t.Runtime, rt.IntValue(int64(exitCode)), luaErr), nil
+	return c.PushingNext(t.Runtime, rt.StringValue(input), rt.IntValue(int64(exitCode)), luaErr), nil
 }
 
 func luaRunner(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
@@ -46,11 +46,11 @@ func luaRunner(t *rt.Thread, c *rt.GoCont) (rt.Cont, error) {
 		return nil, err
 	}
 
-	exitCode, err := handleLua(cmd)
+	input, exitCode, err := handleLua(cmd)
 	var luaErr rt.Value = rt.NilValue
 	if err != nil {
 		luaErr = rt.StringValue(err.Error())
 	}
 
-	return c.PushingNext(t.Runtime, rt.IntValue(int64(exitCode)), luaErr), nil
+	return c.PushingNext(t.Runtime, rt.StringValue(input), rt.IntValue(int64(exitCode)), luaErr), nil
 }