Add :w filename and :n new buffer

Author Mitja Felicijan <mitja.felicijan@gmail.com> 2026-01-22 18:51:24 +0100
Committer Mitja Felicijan <mitja.felicijan@gmail.com> 2026-01-22 18:51:24 +0100
Commit 3d25687572aa9373e324a06413ceffba15d6bceb (patch)
-rw-r--r-- command.go 23
-rw-r--r-- editor.go 20
2 files changed, 40 insertions, 3 deletions
diff --git a/command.go b/command.go
...
34 
  
 34 
  
35 
	// Valid if it's a known command
 35 
	// Valid if it's a known command
36 
	switch cmd {
 36 
	switch cmd {
37 
	case "q", "Q", "q!", "Q!", "w", "W", "wa", "WA", "wq", "WQ", "waq", "WAQ", "reload", "bd", "bd!", "debug", "help", "mouse", "e", "edit":
 37 
	case "q", "Q", "q!", "Q!", "w", "W", "wa", "WA", "wq", "WQ", "waq", "WAQ", "reload", "bd", "bd!", "debug", "help", "mouse", "e", "edit", "n":
38 
		return true
 38 
		return true
39 
	}
 39 
	}
40 
  
 40 
  
41 
	// Valid if it starts with ! (shell command) or r! (read shell)
 41 
	// Valid if it starts with ! (shell command) or r! (read shell)
42 
	if strings.HasPrefix(cmd, "!") || strings.HasPrefix(cmd, "r!") {
 42 
	if strings.HasPrefix(cmd, "!") || strings.HasPrefix(cmd, "r!") {
 
  
 43 
		return true
 
  
 44 
	}
 
  
 45 
  
 
  
 46 
	// Valid if it starts with w (write with filename)
 
  
 47 
	if strings.HasPrefix(cmd, "w ") {
43 
		return true
 48 
		return true
44 
	}
 49 
	}
45 
  
 50 
  
...
104 
	case cmd == "q!" || cmd == "Q!":
 109 
	case cmd == "q!" || cmd == "Q!":
105 
		ch.quit(true)
 110 
		ch.quit(true)
106 
	case cmd == "w" || cmd == "W":
 111 
	case cmd == "w" || cmd == "W":
107 
		ch.write()
 112 
		ch.write("")
 
  
 113 
	case strings.HasPrefix(cmd, "w "):
 
  
 114 
		filename := strings.TrimSpace(strings.TrimPrefix(cmd, "w "))
 
  
 115 
		ch.write(filename)
108 
	case cmd == "wa" || cmd == "WA":
 116 
	case cmd == "wa" || cmd == "WA":
109 
		ch.writeAll()
 117 
		ch.writeAll()
110 
	case cmd == "wq" || cmd == "WQ":
 118 
	case cmd == "wq" || cmd == "WQ":
...
129 
		ch.bufferDelete(false)
 137 
		ch.bufferDelete(false)
130 
	case cmd == "bd!":
 138 
	case cmd == "bd!":
131 
		ch.bufferDelete(true)
 139 
		ch.bufferDelete(true)
 
  
 140 
	case cmd == "n":
 
  
 141 
		ch.e.NewBuffer()
132 
	case cmd == "debug":
 142 
	case cmd == "debug":
133 
		ch.e.toggleDebugWindow()
 143 
		ch.e.toggleDebugWindow()
134 
	case cmd == "help":
 144 
	case cmd == "help":
...
217 
}
 227 
}
218 
  
 228 
  
219 
// write saves the current active buffer to disk.
 229 
// write saves the current active buffer to disk.
220 
func (ch *Command) write() {
 230 
func (ch *Command) write(filename string) {
 
  
 231 
	if filename != "" {
 
  
 232 
		b := ch.e.activeBuffer()
 
  
 233 
		if b != nil {
 
  
 234 
			b.filename = filename
 
  
 235 
			b.fileType = getFileType(filename)
 
  
 236 
		}
 
  
 237 
	}
221 
	err := ch.e.SaveFile(false)
 238 
	err := ch.e.SaveFile(false)
222 
	if err != nil {
 239 
	if err != nil {
223 
		// Handle conflict if the file was changed externally.
 240 
		// Handle conflict if the file was changed externally.
...
diff --git a/editor.go b/editor.go
...
238 
	e.showDebugLog = !e.showDebugLog
 238 
	e.showDebugLog = !e.showDebugLog
239 
}
 239 
}
240 
  
 240 
  
 
  
 241 
// NewBuffer creates a new empty buffer and switches to it.
 
  
 242 
func (e *Editor) NewBuffer() {
 
  
 243 
	// Use default file type (Text), which is the last one in the list.
 
  
 244 
	defaultType := fileTypes[len(fileTypes)-1]
 
  
 245 
  
 
  
 246 
	newB := &Buffer{
 
  
 247 
		buffer:    [][]rune{{}},
 
  
 248 
		filename:  "",
 
  
 249 
		undoStack: []HistoryState{},
 
  
 250 
		redoStack: []HistoryState{},
 
  
 251 
		fileType:  defaultType,
 
  
 252 
	}
 
  
 253 
  
 
  
 254 
	e.buffers = append(e.buffers, newB)
 
  
 255 
	e.activeBufferIndex = len(e.buffers) - 1
 
  
 256 
	e.message = "New buffer created"
 
  
 257 
	e.introDismissed = true
 
  
 258 
}
 
  
 259 
  
241 
// LoadFile reads a file from disk into the active buffer.
 260 
// LoadFile reads a file from disk into the active buffer.
242 
func (e *Editor) LoadFile(filename string) error {
 261 
func (e *Editor) LoadFile(filename string) error {
243 
	info, err := os.Stat(filename)
 262 
	info, err := os.Stat(filename)
...
381 
		e.activeBufferIndex = len(e.buffers) - 1
 400 
		e.activeBufferIndex = len(e.buffers) - 1
382 
	}
 401 
	}
383 
  
 402 
  
 
  
 403 
	e.introDismissed = true
384 
	return nil
 404 
	return nil
385 
}
 405 
}
386 
  
 406 
  
...