Add 'cut' command and key binding

Makefile

@@ -13,8 +13,10 @@ build:
 install: build/typer
 	# Create directories
 	install -dm755 $(DESTDIR)$(BINDIR)
+	install -dm755 $(DESTDIR)$(SYSCONFDIR)
 	# Install files
 	install -Dm755 build/typer $(DESTDIR)$(BINDIR)/typer
+	cp -r config -T $(DESTDIR)$(SYSCONFDIR)/typer
 
 uninstall:
 	rm $(DESTDIR)$(BINDIR)/typer

README.md

@@ -0,0 +1,24 @@
+# Typer Text Editor
+### A simple and easy to use text editor written in Go
+
+|                          Default Style                           |                          Classic Style                           |
+|:----------------------------------------------------------------:|:----------------------------------------------------------------:|
+| ![Example of the Typer's default style](media/default-style.png) | ![Example of the Typer's classic style](media/classic-style.png) |
+
+### Installation
+#### From a package manager:
+|      Distribution      | Package name         |
+|:----------------------:|:---------------------|
+| Arch Linux/Artix Linux | `typer` from the AUR |
+#### From source:
+- Download `go` from your package manager or from the go website
+- Downlaod `which` from your package manager
+- Download `make` from your package manager
+- Run the following command to compile Typer
+```shell
+make
+```
+- Run the following command **with superuser privileges** to install Typer to your system
+```shell
+make install SYSCONFDIR=/etc
+```

config/config.yml

@@ -0,0 +1,10 @@
+# Editor style option
+selected_style: "default" # Style for 256-color and true-color capable terminals
+selected_style_fallback: "default-fallback" # Style for 8-color capable terminals (Like TTYs)
+
+# Other
+show_top_menu: true
+show_line_index: true
+extend_line_index: false # Extend line index to the bottom of the screen
+buffer_info_message: "File: %f Cursor: (%x, %y, %p) Chars: %c"
+tab_indentation: 4 # Length of tab characters

config/keybindings.yml

@@ -0,0 +1,52 @@
+keybindings:
+  - keybinding: "Ctrl-Q"
+    cursor_modes: ["buffer"]
+    command: "quit"
+  - keybinding: "Ctrl-X"
+    cursor_modes: ["buffer"]
+    command: "cut"
+  - keybinding: "Ctrl-C"
+    cursor_modes: ["buffer"]
+    command: "copy"
+  - keybinding: "Ctrl-V"
+    cursor_modes: ["buffer"]
+    command: "paste"
+  - keybinding: "Ctrl-S"
+    cursor_modes: ["buffer"]
+    command: "save"
+  - keybinding: "Ctrl-O"
+    cursor_modes: ["buffer"]
+    command: "open"
+  - keybinding: "Ctrl-L"
+    cursor_modes: ["buffer"]
+    command: "reload"
+  - keybinding: "Ctrl-F"
+    cursor_modes: [ "buffer" ]
+    command: "find"
+  - keybinding: "Ctrl-R"
+    cursor_modes: [ "buffer" ]
+    command: "replace"
+  - keybinding: "PgUp"
+    cursor_modes: ["buffer"]
+    command: "prev-buffer"
+  - keybinding: "PgDn"
+    cursor_modes: ["buffer"]
+    command: "next-buffer"
+  - keybinding: "Ctrl-N"
+    cursor_modes: ["buffer"]
+    command: "new-buffer"
+  - keybinding: "Delete"
+    cursor_modes: ["buffer"]
+    command: "close-buffer"
+  - keybinding: "F1"
+    cursor_modes: ["buffer","dropdown"]
+    command: "menu-file"
+  - keybinding: "F2"
+    cursor_modes: ["buffer","dropdown"]
+    command: "menu-edit"
+  - keybinding: "F3"
+    cursor_modes: ["buffer","dropdown"]
+    command: "menu-buffers"
+  - keybinding: "Ctrl-E"
+    cursor_modes: ["buffer"]
+    command: "execute"

config/styles/classic.yml

@@ -0,0 +1,21 @@
+# Metadata
+name: "classic"
+description: "Style imitating the look of classic text editors and IDEs from the and 90s"
+style_type: "256-color"
+
+# Colors
+colors:
+  buffer_area_bg: "darkblue" # Buffer area background color
+  buffer_area_fg: "white" # Buffer area text color
+  buffer_area_sel: "blue" # Buffer area selected text and cursor background color
+  top_menu_bg: "245" # Top menu background color
+  top_menu_fg: "black" # Top menu text color
+  dropdown_bg: "lightgray" # Dropdown background color
+  dropdown_fg: "black" # Dropdown text color
+  dropdown_sel: "blue" # Dropdown selected option background color
+  line_index_bg: "247" # Line index background color
+  line_index_fg: "black" # Line index text color
+  message_bar_bg: "245" # Message bar background color
+  message_bar_fg: "black" # Message bar text color
+  input_bar_bg: "245" # Input bar background color
+  input_bar_fg: "black" # Input bar text color

config/styles/default-fallback.yml

@@ -0,0 +1,21 @@
+# Metadata
+name: "default-fallback"
+description: "The default look of Typer - Fallback style"
+style_type: "8-color"
+
+# Colors
+colors:
+  buffer_area_bg: "black" # Buffer area background color
+  buffer_area_fg: "white" # Buffer area text color
+  buffer_area_sel: "navy" # Buffer area selected text and cursor background color
+  top_menu_bg: "white" # Top menu background color
+  top_menu_fg: "black" # Top -menu text color
+  dropdown_bg: "white" # Dropdown background color
+  dropdown_fg: "black" # Dropdown text color
+  dropdown_sel: "navy" # Dropdown selected option background color
+  line_index_bg: "white" # Line index background color
+  line_index_fg: "black" # Line index text color
+  message_bar_bg: "white" # Message bar background color
+  message_bar_fg: "black" # Message bar text color
+  input_bar_bg: "white" # Input bar background color
+  input_bar_fg: "black" # Input bar text color

config/styles/default.yml

@@ -0,0 +1,21 @@
+# Metadata
+name: "default"
+description: "The default look of Typer"
+style_type: "256-color"
+
+# Colors
+colors:
+  buffer_area_bg: "234" # Buffer area background color
+  buffer_area_fg: "white" # Buffer area text color
+  buffer_area_sel: "243" # Buffer area selected text and cursor background color
+  top_menu_bg: "236" # Top menu background color
+  top_menu_fg: "white" # Top menu text color
+  dropdown_bg: "236" # Dropdown background color
+  dropdown_fg: "white" # Dropdown text color
+  dropdown_sel: "240" # Dropdown selected option background color
+  line_index_bg: "235" # Line index background color
+  line_index_fg: "dimgray" # Line index text color
+  message_bar_bg: "236" # Message bar background color
+  message_bar_fg: "white" # Message bar text color
+  input_bar_bg: "236" # Input bar background color
+  input_bar_fg: "white" # Input bar text color

src/buffer.go

@@ -2,13 +2,13 @@ package main
 
 import (
 	"fmt"
+	"github.com/gdamore/tcell/v2"
 	"os"
 	"path/filepath"
 	"strings"
 )
 
 type Buffer struct {
-	Id       int
 	Name     string
 	Contents string
 
@@ -26,8 +26,71 @@ type Selection struct {
 	selectionEnd   int
 }
 
-var Buffers = make(map[int]*Buffer)
-var LastBufferId int
+var Buffers = make([]*Buffer, 0)
+
+func GetBufferByName(name string) *Buffer {
+	for _, buffer := range Buffers {
+		if buffer.Name == name {
+			return buffer
+		}
+	}
+	return nil
+}
+
+func GetBufferByFilename(filename string) *Buffer {
+	for _, buffer := range Buffers {
+		if buffer.filename == filename {
+			return buffer
+		}
+	}
+	return nil
+}
+
+func drawBuffer(window *Window) {
+	buffer := window.CurrentBuffer
+
+	x, y, _, _ := window.GetTextAreaDimensions()
+
+	bufferX, bufferY, _, _ := window.GetTextAreaDimensions()
+
+	for i, r := range buffer.Contents + " " {
+		if x-buffer.OffsetX >= bufferX && y-buffer.OffsetY >= bufferY {
+			// Default style
+			style := tcell.StyleDefault.Background(CurrentStyle.BufferAreaBg).Foreground(CurrentStyle.BufferAreaFg)
+
+			// Change background if under cursor
+			if i == buffer.CursorPos {
+				style = style.Background(CurrentStyle.BufferAreaSel)
+			}
+
+			// Change background if selected
+			if buffer.Selection != nil {
+				if edge1, edge2 := buffer.GetSelectionEdges(); i >= edge1 && i <= edge2 {
+					style = style.Background(CurrentStyle.BufferAreaSel)
+
+					// Show selection on entire tab space
+					if r == '\t' {
+						for j := 0; j < int(Config.TabIndentation); j++ {
+							window.screen.SetContent(x+j-buffer.OffsetX, y-buffer.OffsetY, r, nil, style)
+						}
+					}
+				}
+			}
+
+			window.screen.SetContent(x-buffer.OffsetX, y-buffer.OffsetY, r, nil, style)
+		}
+
+		// Change position for next character
+		if r == '\n' {
+			x = bufferX
+			y++
+		} else if r == '\t' {
+			x += int(Config.TabIndentation)
+		} else {
+			x++
+		}
+	}
+}
 
 func (buffer *Buffer) Load() error {
 	// Do not load if canSave is false or filename is not set
@@ -35,6 +98,16 @@ func (buffer *Buffer) Load() error {
 		return nil
 	}
 
+	// Replace tilde with home directory
+	if strings.HasPrefix(buffer.filename, "~/") {
+		homedir, err := os.UserHomeDir()
+		if err != nil {
+			return err
+		}
+
+		buffer.filename = filepath.Join(homedir, buffer.filename[2:])
+	}
+
 	content, err := os.ReadFile(buffer.filename)
 	if err != nil {
 		return err
@@ -50,6 +123,16 @@ func (buffer *Buffer) Save() error {
 		return nil
 	}
 
+	// Replace tilde with home directory
+	if strings.HasPrefix(buffer.filename, "~/") {
+		homedir, err := os.UserHomeDir()
+		if err != nil {
+			return err
+		}
+
+		buffer.filename = filepath.Join(homedir, buffer.filename[2:])
+	}
+
 	// Append new line character at end of buffer contents if not present
 	if buffer.Contents[len(buffer.Contents)-1] != '\n' {
 		buffer.Contents += "\n"
@@ -63,6 +146,18 @@ func (buffer *Buffer) Save() error {
 	return nil
 }
 
+func (buffer *Buffer) GetSelectionEdges() (int, int) {
+	if buffer.Selection == nil {
+		return -1, -1
+	}
+
+	if buffer.Selection.selectionStart < buffer.Selection.selectionEnd {
+		return buffer.Selection.selectionStart, buffer.Selection.selectionEnd
+	} else {
+		return buffer.Selection.selectionEnd, buffer.Selection.selectionStart
+	}
+}
+
 func (buffer *Buffer) GetSelectedText() string {
 	if buffer.Selection == nil {
 		return ""
@@ -89,6 +184,171 @@ func (buffer *Buffer) GetSelectedText() string {
 	}
 }
 
+func (buffer *Buffer) CutText(window *Window) (string, int) {
+	if buffer.Selection == nil {
+		// Copy line
+		copiedText := ""
+		startOfLine := window.CurrentBuffer.CursorPos
+		endOfLine := window.CurrentBuffer.CursorPos
+
+		// Add current letter to copied text
+		if buffer.CursorPos < len(buffer.Contents) {
+			copiedText = string(buffer.Contents[buffer.CursorPos])
+		}
+
+		// Find end of line
+		for i := buffer.CursorPos + 1; i < len(buffer.Contents); i++ {
+			currentLetter := buffer.Contents[i]
+
+			endOfLine++
+			copiedText += string(currentLetter)
+			if currentLetter == '\n' {
+				break
+			}
+		}
+
+		// Find start of line
+		for i := buffer.CursorPos - 1; i >= 0; i-- {
+			currentLetter := buffer.Contents[i]
+			if currentLetter != '\n' {
+				startOfLine--
+				copiedText = string(currentLetter) + copiedText
+			} else {
+				break
+			}
+		}
+
+		// Remove line from buffer contents
+		buffer.Contents = buffer.Contents[:startOfLine] + buffer.Contents[endOfLine+1:]
+
+		return copiedText, 0
+	} else {
+		// Copy selection
+		copiedText := buffer.GetSelectedText()
+
+		// Remove selected text
+		edge1, edge2 := buffer.GetSelectionEdges()
+		if edge2 == len(buffer.Contents) {
+			edge2 = len(buffer.Contents) - 1
+		}
+
+		buffer.Contents = buffer.Contents[:edge1] + buffer.Contents[edge2+1:]
+		window.SetCursorPos(edge1)
+		buffer.Selection = nil
+
+		return copiedText, 1
+	}
+}
+
+func (buffer *Buffer) CopyText() (string, int) {
+	if buffer.Selection == nil {
+		// Copy line
+		copiedText := ""
+
+		// Add current letter to copied text
+		if buffer.CursorPos < len(buffer.Contents) {
+			copiedText = string(buffer.Contents[buffer.CursorPos])
+		}
+
+		// Find end of line
+		for i := buffer.CursorPos + 1; i < len(buffer.Contents); i++ {
+			currentLetter := buffer.Contents[i]
+
+			copiedText += string(currentLetter)
+			if currentLetter == '\n' {
+				break
+			}
+		}
+
+		// Find start of line
+		for i := buffer.CursorPos - 1; i >= 0; i-- {
+			currentLetter := buffer.Contents[i]
+			if currentLetter != '\n' {
+				copiedText = string(currentLetter) + copiedText
+			} else {
+				break
+			}
+		}
+
+		return copiedText, 0
+	} else {
+		// Copy selection
+		return buffer.GetSelectedText(), 1
+	}
+}
+
+func (buffer *Buffer) PasteText(window *Window, text string) {
+	str := buffer.Contents
+
+	// Remove selected text
+	if buffer.Selection != nil {
+		edge1, edge2 := buffer.GetSelectionEdges()
+		if edge2 == len(buffer.Contents) {
+			edge2 = len(buffer.Contents) - 1
+		}
+
+		str = str[:edge1] + str[edge2+1:]
+		buffer.Contents = str
+		window.SetCursorPos(edge1)
+		buffer.Selection = nil
+	}
+
+	index := buffer.CursorPos
+
+	if index == len(str) {
+		str += text
+	} else {
+		str = str[:index] + text + str[index:]
+	}
+	buffer.Contents = str
+	window.SetCursorPos(buffer.CursorPos + len(text))
+}
+
+func (buffer *Buffer) FindSubstring(substring string, afterPos int) int {
+	// Return no match if afterPos is larger than the buffer contents size
+	if afterPos >= len(buffer.Contents) {
+		return -1
+	}
+
+	index := strings.Index(buffer.Contents[afterPos+1:], substring)
+
+	if index != -1 {
+		index += afterPos + 1
+	}
+	return index
+}
+
+func (buffer *Buffer) FindAndReplaceSubstring(substring, replacement string, afterPos int) int {
+	index := buffer.FindSubstring(substring, afterPos)
+
+	// Return if substring isn't found
+	if index == -1 {
+		return -1
+	}
+
+	// Replace substring with replacement string
+	buffer.Contents = buffer.Contents[:index] + replacement + buffer.Contents[index+len(substring):]
+
+	return index
+}
+
+func (buffer *Buffer) FindAndReplaceAll(substring, replacement string) int {
+	replacements := 0
+	index := 0
+	for index != -1 {
+		index = buffer.FindAndReplaceSubstring(substring, replacement, index)
+		if index != -1 {
+			replacements++
+		}
+
+		if index == 0 {
+			index++
+		}
+	}
+
+	return replacements
+}
+
 func GetOpenFileBuffer(filename string) *Buffer {
 	// Replace tilde with home directory
 	if filename != "~" && strings.HasPrefix(filename, "~/") {
@@ -145,8 +405,15 @@ func CreateFileBuffer(filename string, openNonExistentFile bool) (*Buffer, error
 		}
 	}
 
+	if GetBufferByName(filename) != nil {
+		return nil, fmt.Errorf("a buffer with the name (%s) is already open", filename)
+	}
+
+	if GetBufferByFilename(abs) != nil {
+		return nil, fmt.Errorf("%s is already open in another buffer", filename)
+	}
+
 	buffer := Buffer{
-		Id:        LastBufferId + 1,
 		Name:      filename,
 		Contents:  "",
 		CursorPos: 0,
@@ -163,15 +430,13 @@ func CreateFileBuffer(filename string, openNonExistentFile bool) (*Buffer, error
 		}
 	}
 
-	Buffers[buffer.Id] = &buffer
-	LastBufferId++
+	Buffers = append(Buffers, &buffer)
 
 	return &buffer, nil
 }
 
-func CreateBuffer(bufferName string) *Buffer {
+func CreateBuffer(bufferName string) (*Buffer, error) {
 	buffer := Buffer{
-		Id:        LastBufferId + 1,
 		Name:      bufferName,
 		Contents:  "",
 		CursorPos: 0,
@@ -179,8 +444,11 @@ func CreateBuffer(bufferName string) *Buffer {
 		filename:  "",
 	}
 
-	Buffers[buffer.Id] = &buffer
-	LastBufferId++
+	if GetBufferByName(bufferName) != nil {
+		return nil, fmt.Errorf("a buffer with the name (%s) is already open", bufferName)
+	}
 
-	return &buffer
+	Buffers = append(Buffers, &buffer)
+
+	return &buffer, nil
 }

src/command.go

@@ -3,8 +3,8 @@ package main
 import (
 	"fmt"
 	"log"
-	"maps"
 	"slices"
+	"strconv"
 	"strings"
 )
 
@@ -18,17 +18,37 @@ var commands = make(map[string]*Command)
 
 func initCommands() {
 	// Setup commands
+	cutCmd := Command{
+		cmd: "cut",
+		run: func(window *Window, args ...string) {
+			// Cut text from buffer
+			copiedText, copyingMethod := window.CurrentBuffer.CutText(window)
+
+			// Put cut text to clipboard
+			window.Clipboard = copiedText
+
+			// Send appropriate message and remove text depending on copying method
+			if copyingMethod == 0 {
+				PrintMessage(window, "Copied line to clipboard.")
+			} else {
+				PrintMessage(window, "Copied selection to clipboard.")
+			}
+		},
+	}
+
 	copyCmd := Command{
 		cmd: "copy",
 		run: func(window *Window, args ...string) {
-			if window.CurrentBuffer.Selection == nil {
-				// Copy line
-				_, line := window.GetCursorPos2D()
-				window.Clipboard = strings.SplitAfter(window.CurrentBuffer.Contents, "\n")[line]
+			// Copy text from buffer
+			copiedText, copyingMethod := window.CurrentBuffer.CopyText()
+
+			// Put copied text to clipboard
+			window.Clipboard = copiedText
+
+			// Send appropriate message depending on copying method
+			if copyingMethod == 0 {
 				PrintMessage(window, "Copied line to clipboard.")
 			} else {
-				// Copy selection
-				window.Clipboard = window.CurrentBuffer.GetSelectedText()
 				PrintMessage(window, "Copied selection to clipboard.")
 			}
 		},
@@ -37,16 +57,10 @@ func initCommands() {
 	pasteCmd := Command{
 		cmd: "paste",
 		run: func(window *Window, args ...string) {
-			str := window.CurrentBuffer.Contents
-			index := window.CurrentBuffer.CursorPos
-
-			if index == len(str) {
-				str += window.Clipboard
-			} else {
-				str = str[:index] + window.Clipboard + str[index:]
+			if window.Clipboard != "" {
+				window.CurrentBuffer.PasteText(window, window.Clipboard)
+				PrintMessage(window, "Pasted text to buffer.")
 			}
-			window.CurrentBuffer.Contents = str
-			window.SetCursorPos(window.CurrentBuffer.CursorPos + len(window.Clipboard))
 		},
 	}
 
@@ -133,6 +147,132 @@ func initCommands() {
 		},
 	}
 
+	findCmd := Command{
+		cmd: "find",
+		run: func(window *Window, args ...string) {
+			if len(args) >= 1 {
+				input := args[0]
+
+				if input == "" {
+					return
+				}
+
+				pos := window.CurrentBuffer.FindSubstring(input, window.CurrentBuffer.CursorPos)
+				if pos >= 0 {
+					window.SetCursorPos(pos)
+					PrintMessage(window, "Match found.")
+				} else {
+					PrintMessage(window, fmt.Sprintf("'%s' not found in buffer!", input))
+				}
+
+				return
+			}
+
+			inputChannel := RequestInput(window, "Substring to search for:", "")
+			go func() {
+				input := <-inputChannel
+
+				if input == "" {
+					return
+				}
+
+				pos := window.CurrentBuffer.FindSubstring(input, window.CurrentBuffer.CursorPos)
+				if pos >= 0 {
+					window.SetCursorPos(pos)
+					PrintMessage(window, "Match found.")
+				} else {
+					PrintMessage(window, fmt.Sprintf("'%s' not found in buffer!", input))
+				}
+			}()
+		},
+	}
+
+	replaceCmd := Command{
+		cmd: "replace",
+		run: func(window *Window, args ...string) {
+			if len(args) >= 2 {
+				findStr := args[0]
+				replaceStr := args[1]
+
+				if findStr == "" {
+					return
+				}
+
+				pos := window.CurrentBuffer.FindAndReplaceSubstring(findStr, replaceStr, window.CurrentBuffer.CursorPos)
+				if pos >= 0 {
+					window.SetCursorPos(pos)
+					PrintMessage(window, "Match replaced successfully.")
+				} else {
+					PrintMessage(window, fmt.Sprintf("'%s' not found in buffer!", findStr))
+				}
+
+				return
+			}
+
+			go func() {
+				inputChannel := RequestInput(window, "Substring to search for:", "")
+				findStr := <-inputChannel
+				if findStr == "" {
+					return
+				}
+
+				inputChannel = RequestInput(window, "String to replace with:", "")
+				replaceStr := <-inputChannel
+
+				pos := window.CurrentBuffer.FindAndReplaceSubstring(findStr, replaceStr, window.CurrentBuffer.CursorPos)
+				if pos >= 0 {
+					window.SetCursorPos(pos)
+					PrintMessage(window, "Match replaced successfully.")
+				} else {
+					PrintMessage(window, fmt.Sprintf("'%s' not found in buffer!", findStr))
+				}
+			}()
+		},
+	}
+
+	replaceAllCmd := Command{
+		cmd: "replace-all",
+		run: func(window *Window, args ...string) {
+			if len(args) >= 2 {
+				findStr := args[0]
+				replaceStr := args[1]
+
+				if findStr == "" {
+					return
+				}
+
+				replacements := window.CurrentBuffer.FindAndReplaceAll(findStr, replaceStr)
+				if replacements > 0 {
+					window.SetCursorPos(window.CurrentBuffer.CursorPos)
+					PrintMessage(window, fmt.Sprintf("Replaced all %d matches successfully.", replacements))
+				} else {
+					PrintMessage(window, fmt.Sprintf("'%s' not found in buffer!", findStr))
+				}
+
+				return
+			}
+
+			go func() {
+				inputChannel := RequestInput(window, "Substring to search for:", "")
+				findStr := <-inputChannel
+				if findStr == "" {
+					return
+				}
+
+				inputChannel = RequestInput(window, "String to replace with:", "")
+				replaceStr := <-inputChannel
+
+				replacements := window.CurrentBuffer.FindAndReplaceAll(findStr, replaceStr)
+				if replacements > 0 {
+					window.SetCursorPos(window.CurrentBuffer.CursorPos)
+					PrintMessage(window, fmt.Sprintf("Replaced all %d matches successfully.", replacements))
+				} else {
+					PrintMessage(window, fmt.Sprintf("'%s' not found in buffer!", findStr))
+				}
+			}()
+		},
+	}
+
 	prevBufferCmd := Command{
 		cmd: "prev-buffer",
 		run: func(window *Window, args ...string) {
@@ -140,15 +280,15 @@ func initCommands() {
 				return
 			}
 
-			buffers := slices.Collect(maps.Values(Buffers))
-			index := slices.Index(buffers, window.CurrentBuffer)
+			index := slices.Index(Buffers, window.CurrentBuffer)
 
 			index--
 			if index < 0 {
 				index = 0
 			}
 
-			window.CurrentBuffer = buffers[index]
+			window.CurrentBuffer = Buffers[index]
+			PrintMessage(window, fmt.Sprintf("Set current buffer to '%s'.", window.CurrentBuffer.Name))
 		},
 	}
 
@@ -159,44 +299,110 @@ func initCommands() {
 				return
 			}
 
-			buffers := slices.Collect(maps.Values(Buffers))
-			index := slices.Index(buffers, window.CurrentBuffer)
+			index := slices.Index(Buffers, window.CurrentBuffer)
 
 			index++
-			if index >= len(buffers) {
-				index = len(buffers) - 1
+			if index >= len(Buffers) {
+				index = len(Buffers) - 1
 			}
 
-			window.CurrentBuffer = buffers[index]
+			window.CurrentBuffer = Buffers[index]
+			PrintMessage(window, fmt.Sprintf("Set current buffer to '%s'.", window.CurrentBuffer.Name))
 		},
 	}
 
 	newBufferCmd := Command{
 		cmd: "new-buffer",
 		run: func(window *Window, args ...string) {
-			number := 1
-			for _, buffer := range Buffers {
-				if strings.HasPrefix(buffer.Name, "New File ") {
-					number++
+			for i := 1; true; i++ {
+				buffer, err := CreateBuffer("New Buffer " + strconv.Itoa(i))
+				if err == nil {
+					window.CurrentBuffer = buffer
+					break
 				}
 			}
-			buffer := CreateBuffer(fmt.Sprintf("New File %d", number))
-			window.CurrentBuffer = buffer
+
 			window.CursorMode = CursorModeBuffer
+			PrintMessage(window, fmt.Sprintf("New buffer created with the name '%s'.", window.CurrentBuffer.Name))
 		},
 	}
 
 	closeBufferCmd := Command{
 		cmd: "close-buffer",
 		run: func(window *Window, args ...string) {
-			delete(Buffers, window.CurrentBuffer.Id)
-			buffersSlice := slices.Collect(maps.Values(Buffers))
-			if len(buffersSlice) == 0 {
+			bufferIndex := slices.Index(Buffers, window.CurrentBuffer)
+			Buffers = DeleteFromSlice(Buffers, bufferIndex)
+			if len(Buffers) == 0 {
 				window.Close()
 				return
 			}
-			window.CurrentBuffer = buffersSlice[0]
+			if bufferIndex >= len(Buffers) {
+				window.CurrentBuffer = Buffers[bufferIndex-1]
+			} else {
+				window.CurrentBuffer = Buffers[bufferIndex]
+			}
 			window.CursorMode = CursorModeBuffer
+			PrintMessage(window, "Buffer closed.")
+		},
+	}
+
+	toggleTopBar := Command{
+		cmd: "toggle-top-bar",
+		run: func(window *Window, args ...string) {
+			window.ShowTopMenu = !window.ShowTopMenu
+		},
+	}
+
+	toggleLineIndex := Command{
+		cmd: "toggle-line-index",
+		run: func(window *Window, args ...string) {
+			window.ShowLineIndex = !window.ShowLineIndex
+		},
+	}
+
+	setStyleCmd := Command{
+		cmd: "set-style",
+		run: func(window *Window, args ...string) {
+			if len(args) >= 1 {
+				input := args[0]
+
+				if input == "" {
+					return
+				}
+
+				if _, ok := AvailableStyles[input]; !ok {
+					PrintMessage(window, fmt.Sprintf("Could not set style to '%s'", input))
+					return
+				}
+
+				if ok := SetCurrentStyle(window.screen, input); ok {
+					PrintMessage(window, fmt.Sprintf("Setting style to '%s'", input))
+				} else {
+					PrintMessage(window, fmt.Sprintf("Could not set style to '%s'", input))
+				}
+
+				return
+			}
+
+			inputChannel := RequestInput(window, "Style to switch to:", "")
+			go func() {
+				input := <-inputChannel
+
+				if input == "" {
+					return
+				}
+
+				if _, ok := AvailableStyles[input]; !ok {
+					PrintMessage(window, fmt.Sprintf("Could not set style to '%s'", input))
+					return
+				}
+
+				if ok := SetCurrentStyle(window.screen, input); ok {
+					PrintMessage(window, fmt.Sprintf("Setting style to '%s'", input))
+				} else {
+					PrintMessage(window, fmt.Sprintf("Could not set style to '%s'", input))
+				}
+			}()
 		},
 	}
 
@@ -244,20 +450,69 @@ func initCommands() {
 		},
 	}
 
+	executeCmd := Command{
+		cmd: "execute",
+		run: func(window *Window, args ...string) {
+			inputChannel := RequestInput(window, "Run:", "")
+
+			go func() {
+				input := strings.TrimSpace(<-inputChannel)
+
+				if input == "" {
+					return
+				}
+
+				var arguments []string
+
+				builder := &strings.Builder{}
+				quoted := false
+				for _, r := range input {
+					if r == '"' {
+						quoted = !quoted
+					} else if !quoted && r == ' ' {
+						arguments = append(arguments, builder.String())
+						builder.Reset()
+					} else {
+						builder.WriteRune(r)
+					}
+				}
+				if builder.Len() > 0 {
+					arguments = append(arguments, builder.String())
+				}
+
+				window.CursorMode = CursorModeBuffer
+
+				if len(arguments) == 1 {
+					RunCommand(window, arguments[0])
+				} else {
+					RunCommand(window, arguments[0], arguments[1:]...)
+				}
+			}()
+		},
+	}
+
 	// Register commands
+	commands["cut"] = &cutCmd
 	commands["copy"] = &copyCmd
 	commands["paste"] = &pasteCmd
 	commands["save"] = &saveCmd
 	commands["open"] = &openCmd
 	commands["reload"] = &reloadCmd
+	commands["find"] = &findCmd
+	commands["replace"] = &replaceCmd
+	commands["replace-all"] = &replaceAllCmd
 	commands["prev-buffer"] = &prevBufferCmd
 	commands["next-buffer"] = &nextBufferCmd
 	commands["new-buffer"] = &newBufferCmd
 	commands["close-buffer"] = &closeBufferCmd
+	commands["toggle-top-bar"] = &toggleTopBar
+	commands["toggle-line-index"] = &toggleLineIndex
+	commands["set-style"] = &setStyleCmd
 	commands["menu-file"] = &menuFileCmd
 	commands["menu-edit"] = &menuEditCmd
 	commands["menu-buffers"] = &menuBuffersCmd
 	commands["quit"] = &quitCmd
+	commands["execute"] = &executeCmd
 }
 
 func RunCommand(window *Window, cmd string, args ...string) bool {

src/config.go

@@ -0,0 +1,63 @@
+package main
+
+import (
+	"gopkg.in/yaml.v3"
+	"log"
+	"os"
+	"path"
+)
+
+type TyperConfig struct {
+	SelectedStyle     string `yaml:"selected_style,omitempty"`
+	FallbackStyle     string `yaml:"fallback_style,omitempty"`
+	ShowTopMenu       bool   `yaml:"show_top_menu,omitempty"`
+	ShowLineIndex     bool   `yaml:"show_line_index,omitempty"`
+	ExtendLineIndex   bool   `yaml:"extend_line_index,omitempty"`
+	BufferInfoMessage string `yaml:"buffer_info_message,omitempty"`
+	TabIndentation    int    `yaml:"tab_indentation,omitempty"`
+}
+
+var Config TyperConfig
+
+func readConfig() {
+	Config = TyperConfig{
+		SelectedStyle:     "default",
+		FallbackStyle:     "default-fallback",
+		ShowTopMenu:       true,
+		ShowLineIndex:     true,
+		ExtendLineIndex:   false,
+		BufferInfoMessage: "File: %f Cursor: (%x, %y, %p) Chars: %c",
+		TabIndentation:    4,
+	}
+
+	homeDir, err := os.UserHomeDir()
+	if err != nil {
+		log.Fatalf("Could not get home directory: %s", err)
+	}
+
+	if _, err := os.Stat(path.Join(homeDir, ".config/typer/config.yml")); err == nil {
+		data, err := os.ReadFile(path.Join(homeDir, ".config/typer/config.yml"))
+		if err != nil {
+			log.Fatalf("Could not read config.yml: %s", err)
+		}
+		err = yaml.Unmarshal(data, &Config)
+		if err != nil {
+			log.Fatalf("Could not unmarshal config.yml: %s", err)
+		}
+	} else if _, err := os.Stat("/etc/typer/config.yml"); err == nil {
+		reader, err := os.Open("/etc/typer/config.yml")
+		if err != nil {
+			log.Fatalf("Could not read config.yml: %s", err)
+		}
+		err = yaml.NewDecoder(reader).Decode(&Config)
+		if err != nil {
+			log.Fatalf("Could not read config.yml: %s", err)
+		}
+		reader.Close()
+	}
+
+	// Validate config options
+	if Config.TabIndentation < 1 {
+		Config.TabIndentation = 1
+	}
+}

src/dropdown.go

@@ -50,13 +50,13 @@ func ClearDropdowns() {
 }
 
 func drawDropdowns(window *Window) {
-	dropdownStyle := tcell.StyleDefault.Foreground(tcell.ColorWhite).Background(tcell.Color236)
+	dropdownStyle := tcell.StyleDefault.Background(CurrentStyle.DropdownBg).Foreground(CurrentStyle.DropdownFg)
 	for _, d := range dropdowns {
 		drawBox(window.screen, d.PosX, d.PosY, d.PosX+d.Width+1, d.PosY+len(d.Options)+1, dropdownStyle)
-		line := d.PosY
+		line := 1
 		for i, option := range d.Options {
 			if d.Selected == i {
-				drawText(window.screen, d.PosX+1, d.PosY+line, d.PosX+d.Width+1, d.PosY+line, dropdownStyle.Background(tcell.Color240), option)
+				drawText(window.screen, d.PosX+1, d.PosY+line, d.PosX+d.Width+1, d.PosY+line, dropdownStyle.Background(CurrentStyle.DropdownSel), option)
 			} else {
 				drawText(window.screen, d.PosX+1, d.PosY+line, d.PosX+d.Width+1, d.PosY+line, dropdownStyle, option)
 			}

src/go.mod

@@ -12,4 +12,5 @@ require (
 	golang.org/x/sys v0.33.0 // indirect
 	golang.org/x/term v0.32.0 // indirect
 	golang.org/x/text v0.26.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

src/go.sum

@@ -79,3 +79,6 @@ golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
 golang.org/x/tools v0.13.0/go.mod h1:HvlwmtVNQAhOuCjW7xxvovg8wbNq7LwfXh/k7wXUl58=
 golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d/go.mod h1:aiJjzUbINMkxbQROHiO6hDPo2LHcIPhhQsa9DLh0yGk=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

src/input_bar.go

@@ -31,10 +31,6 @@ func RequestInput(window *Window, text string, defaultInput string) chan string
 	return request.inputChannel
 }
 
-func IsRequestingInput() bool {
-	return currentInputRequest != nil
-}
-
 func drawInputBar(window *Window) {
 	if currentInputRequest == nil {
 		return
@@ -42,7 +38,7 @@ func drawInputBar(window *Window) {
 
 	screen := window.screen
 
-	inputBarStyle := tcell.StyleDefault.Foreground(tcell.ColorWhite).Background(tcell.Color236)
+	inputBarStyle := tcell.StyleDefault.Background(CurrentStyle.InputBarBg).Foreground(CurrentStyle.InputBarFg)
 
 	sizeX, sizeY := screen.Size()
 

src/keybindings.go

@@ -2,106 +2,86 @@ package main
 
 import (
 	"github.com/gdamore/tcell/v2"
+	"gopkg.in/yaml.v3"
+	"log"
+	"os"
+	"path"
 	"strings"
 )
 
+type TyperKeybindings struct {
+	Keybindings []Keybinding `yaml:"keybindings"`
+}
+
 type Keybinding struct {
-	keybind     string
-	cursorModes []CursorMode
-	command     string
+	Keybinding  string   `yaml:"keybinding"`
+	CursorModes []string `yaml:"cursor_modes"`
+	Command     string   `yaml:"command"`
 }
 
-var Keybinds = make([]Keybinding, 0)
+var Keybindings TyperKeybindings
 
-func initKeybindings() {
-	// Add key bindings
-	Keybinds = append(Keybinds, Keybinding{
-		keybind:     "Ctrl-Q",
-		cursorModes: []CursorMode{CursorModeBuffer},
-		command:     "quit",
-	})
-	Keybinds = append(Keybinds, Keybinding{
-		keybind:     "Ctrl-C",
-		cursorModes: []CursorMode{CursorModeBuffer},
-		command:     "copy",
-	})
-	Keybinds = append(Keybinds, Keybinding{
-		keybind:     "Ctrl-V",
-		cursorModes: []CursorMode{CursorModeBuffer},
-		command:     "paste",
-	})
-	Keybinds = append(Keybinds, Keybinding{
-		keybind:     "Ctrl-S",
-		cursorModes: []CursorMode{CursorModeBuffer},
-		command:     "save",
-	})
-	Keybinds = append(Keybinds, Keybinding{
-		keybind:     "Ctrl-O",
-		cursorModes: []CursorMode{CursorModeBuffer},
-		command:     "open",
-	})
-	Keybinds = append(Keybinds, Keybinding{
-		keybind:     "Ctrl-R",
-		cursorModes: []CursorMode{CursorModeBuffer},
-		command:     "reload",
-	})
-	Keybinds = append(Keybinds, Keybinding{
-		keybind:     "PgUp",
-		cursorModes: []CursorMode{CursorModeBuffer},
-		command:     "prev-buffer",
-	})
-	Keybinds = append(Keybinds, Keybinding{
-		keybind:     "PgDn",
-		cursorModes: []CursorMode{CursorModeBuffer},
-		command:     "next-buffer",
-	})
-	Keybinds = append(Keybinds, Keybinding{
-		keybind:     "Ctrl-N",
-		cursorModes: []CursorMode{CursorModeBuffer},
-		command:     "new-buffer",
-	})
-	Keybinds = append(Keybinds, Keybinding{
-		keybind:     "Delete",
-		cursorModes: []CursorMode{CursorModeBuffer},
-		command:     "close-buffer",
-	})
-	Keybinds = append(Keybinds, Keybinding{
-		keybind:     "Ctrl-Q",
-		cursorModes: []CursorMode{CursorModeBuffer},
-		command:     "quit",
-	})
-	Keybinds = append(Keybinds, Keybinding{
-		keybind:     "F1",
-		cursorModes: []CursorMode{CursorModeBuffer, CursorModeDropdown},
-		command:     "menu-file",
-	})
-	Keybinds = append(Keybinds, Keybinding{
-		keybind:     "F2",
-		cursorModes: []CursorMode{CursorModeBuffer, CursorModeDropdown},
-		command:     "menu-edit",
-	})
-	Keybinds = append(Keybinds, Keybinding{
-		keybind:     "F3",
-		cursorModes: []CursorMode{CursorModeBuffer, CursorModeDropdown},
-		command:     "menu-buffers",
-	})
+func readKeybindings() {
+	Keybindings = TyperKeybindings{
+		Keybindings: make([]Keybinding, 0),
+	}
+
+	homeDir, err := os.UserHomeDir()
+	if err != nil {
+		log.Fatalf("Could not get home directory: %s", err)
+	}
+
+	if _, err := os.Stat(path.Join(homeDir, ".config/typer/keybindings.yml")); err == nil {
+		data, err := os.ReadFile(path.Join(homeDir, ".config/typer/keybindings.yml"))
+		if err != nil {
+			log.Fatalf("Could not read keybindings.yml: %s", err)
+		}
+		err = yaml.Unmarshal(data, &Keybindings)
+		if err != nil {
+			log.Fatalf("Could not unmarshal keybindings.yml: %s", err)
+		}
+	} else if _, err := os.Stat("/etc/typer/keybindings.yml"); err == nil {
+		reader, err := os.Open("/etc/typer/keybindings.yml")
+		if err != nil {
+			log.Fatalf("Could not read keybindings.yml: %s", err)
+		}
+		err = yaml.NewDecoder(reader).Decode(&Keybindings)
+		if err != nil {
+			log.Fatalf("Could not read keybindings.yml: %s", err)
+		}
+		reader.Close()
+	}
 }
 
-func (keybind *Keybinding) IsPressed(ev *tcell.EventKey) bool {
-	keys := strings.SplitN(keybind.keybind, "+", 2)
+func (keybinding *Keybinding) GetCursorModes() []CursorMode {
+	ret := make([]CursorMode, 0)
+
+	for _, cursorModeStr := range keybinding.CursorModes {
+		for key, value := range CursorModeNames {
+			if cursorModeStr == value {
+				ret = append(ret, key)
+			}
+		}
+	}
+
+	return ret
+}
+
+func (keybinding *Keybinding) IsPressed(ev *tcell.EventKey) bool {
+	keys := strings.SplitN(keybinding.Keybinding, "+", 2)
 
 	if len(keys) == 0 {
 		return false
 	} else if len(keys) == 1 {
 		for k, v := range tcell.KeyNames {
 			if k != tcell.KeyRune {
-				if keybind.keybind == v {
+				if keybinding.Keybinding == v {
 					if ev.Key() == k {
 						return true
 					}
 				}
 			} else {
-				if keybind.keybind == string(ev.Rune()) {
+				if keybinding.Keybinding == string(ev.Rune()) {
 					return true
 				}
 			}

src/line_index.go

@@ -10,18 +10,24 @@ func drawLineIndex(window *Window) {
 	screen := window.screen
 	buffer := window.CurrentBuffer
 
-	lineIndexStyle := tcell.StyleDefault.Foreground(tcell.ColorDimGray).Background(tcell.Color235)
-
-	_, sizeY := screen.Size()
-
-	y := 0
-	if window.ShowTopMenu {
-		y = 1
-	}
+	lineIndexStyle := tcell.StyleDefault.Background(CurrentStyle.LineIndexBg).Foreground(CurrentStyle.LineIndexFg)
 
 	lineIndexSize := getLineIndexSize(window)
 
-	for lineIndex := 1 + buffer.OffsetY; lineIndex <= strings.Count(buffer.Contents, "\n")+1 && lineIndex < sizeY+buffer.OffsetY; lineIndex++ {
+	_, bufferY1, _, bufferY2 := window.GetTextAreaDimensions()
+
+	lineIndex := 1 + buffer.OffsetY
+	for y := bufferY1; y <= bufferY2; y++ {
+		if lineIndex > strings.Count(buffer.Contents, "\n")+1 {
+			if Config.ExtendLineIndex {
+				for x := 0; x < lineIndexSize; x++ {
+					screen.SetContent(x, y, ' ', nil, lineIndexStyle)
+				}
+				continue
+			} else {
+				break
+			}
+		}
 
 		for x := 0; x < lineIndexSize; x++ {
 			screen.SetContent(x, y, ' ', nil, lineIndexStyle)
@@ -30,7 +36,8 @@ func drawLineIndex(window *Window) {
 		text := strconv.Itoa(lineIndex)
 
 		drawText(screen, lineIndexSize-len(text)-1, y, lineIndexSize, y, lineIndexStyle, text)
-		y++
+
+		lineIndex++
 	}
 }
 

src/main.go

@@ -6,34 +6,43 @@ import (
 )
 
 func main() {
+	// Read config
+	readConfig()
+
+	// Read key bindings
+	readKeybindings()
+
+	// Read styles
+	readStyles()
+
 	// Initialize commands
 	initCommands()
 
-	// Initialize key bindings
-	initKeybindings()
-
 	window, err := CreateWindow()
 	if err != nil {
 		log.Fatalf("Failed to create window: %v", err)
 	}
 
 	if len(os.Args) > 1 {
-		for _, file := range os.Args[1:] {
+		for i, file := range os.Args[1:] {
 			b, err := CreateFileBuffer(file, true)
 			if err != nil {
 				PrintMessage(window, "Could not open file: "+file)
 				continue
 			}
 
-			if window.CurrentBuffer.Name == "New File 1" {
-				delete(Buffers, window.CurrentBuffer.Id)
+			if i == 0 {
 				window.CurrentBuffer = b
+				Buffers = Buffers[1:]
 			}
 		}
 	}
 
-	for window.screen != nil {
+	for !window.closed {
 		window.Draw()
+		window.ProcessEvents()
 	}
 
+	window.screen.Fini()
+	window.screen = nil
 }

src/message_bar.go

@@ -33,7 +33,7 @@ func PrintMessage(window *Window, message string) {
 func drawMessageBar(window *Window) {
 	screen := window.screen
 
-	messageBarStyle := tcell.StyleDefault.Foreground(tcell.ColorWhite).Background(tcell.Color236)
+	messageBarStyle := tcell.StyleDefault.Background(CurrentStyle.MessageBarBg).Foreground(CurrentStyle.MessageBarFg)
 
 	sizeX, sizeY := screen.Size()
 

src/style.go

@@ -0,0 +1,191 @@
+package main
+
+import (
+	"fmt"
+	"github.com/gdamore/tcell/v2"
+	"gopkg.in/yaml.v3"
+	"log"
+	"os"
+	"path"
+	"reflect"
+	"slices"
+	"strconv"
+	"strings"
+)
+
+type TyperStyle struct {
+	// Metadata
+	Name        string
+	Description string
+	StyleType   string
+
+	// Colors
+	BufferAreaBg  tcell.Color `name:"buffer_area_bg"`
+	BufferAreaFg  tcell.Color `name:"buffer_area_fg"`
+	BufferAreaSel tcell.Color `name:"buffer_area_sel"`
+	TopMenuBg     tcell.Color `name:"top_menu_bg"`
+	TopMenuFg     tcell.Color `name:"top_menu_fg"`
+	DropdownBg    tcell.Color `name:"dropdown_bg"`
+	DropdownFg    tcell.Color `name:"dropdown_fg"`
+	DropdownSel   tcell.Color `name:"dropdown_sel"`
+	LineIndexBg   tcell.Color `name:"line_index_bg"`
+	LineIndexFg   tcell.Color `name:"line_index_fg"`
+	MessageBarBg  tcell.Color `name:"message_bar_bg"`
+	MessageBarFg  tcell.Color `name:"message_bar_fg"`
+	InputBarBg    tcell.Color `name:"input_bar_bg"`
+	InputBarFg    tcell.Color `name:"input_bar_fg"`
+}
+
+type typerStyleYaml struct {
+	// Metadata
+	Name        string `yaml:"name"`
+	Description string `yaml:"description"`
+	StyleType   string `yaml:"style_type"`
+
+	// Colors
+	Colors map[string]string `yaml:"colors"`
+}
+
+var FallbackStyle = TyperStyle{
+	Name:        "fallback",
+	Description: "Fallback style",
+	StyleType:   "8-color",
+
+	BufferAreaBg:  tcell.ColorBlack,
+	BufferAreaFg:  tcell.ColorWhite,
+	BufferAreaSel: tcell.ColorNavy,
+	TopMenuBg:     tcell.ColorWhite,
+	TopMenuFg:     tcell.ColorBlack,
+	DropdownBg:    tcell.ColorWhite,
+	DropdownFg:    tcell.ColorBlack,
+	DropdownSel:   tcell.ColorNavy,
+	LineIndexBg:   tcell.ColorWhite,
+	LineIndexFg:   tcell.ColorBlack,
+	MessageBarBg:  tcell.ColorWhite,
+	MessageBarFg:  tcell.ColorBlack,
+	InputBarBg:    tcell.ColorWhite,
+	InputBarFg:    tcell.ColorBlack,
+}
+
+var AvailableStyles = make(map[string]TyperStyle)
+var CurrentStyle = FallbackStyle
+
+func readStyles() {
+	homeDir, err := os.UserHomeDir()
+	if err != nil {
+		log.Fatalf("Could not get home directory: %s", err)
+	}
+
+	if stat, err := os.Stat(path.Join(homeDir, ".config/typer/styles/")); err == nil && stat.IsDir() {
+		entries, err := os.ReadDir(path.Join(homeDir, ".config/typer/styles/"))
+		if err != nil {
+			log.Fatalf("Could not read user style directory: %s", err)
+		}
+
+		for _, entry := range entries {
+			entryPath := path.Join(homeDir, ".config/typer/styles/", entry.Name())
+			style, err := readStyleYamlFile(entryPath)
+			if err != nil {
+				log.Fatalf("Could not read style file (%s): %s", entryPath, err)
+			}
+
+			if _, ok := AvailableStyles[style.Name]; !ok {
+				AvailableStyles[style.Name] = style
+			}
+		}
+	}
+	if stat, err := os.Stat("/etc/typer/styles/"); err == nil && stat.IsDir() {
+		entries, err := os.ReadDir("/etc/typer/styles/")
+		if err != nil {
+			log.Fatalf("Could not read user style directory: %s", err)
+		}
+
+		for _, entry := range entries {
+			entryPath := path.Join("/etc/typer/styles/", entry.Name())
+			style, err := readStyleYamlFile(entryPath)
+			if err != nil {
+				log.Fatalf("Could not read style file (%s): %s", entryPath, err)
+			}
+			if _, ok := AvailableStyles[style.Name]; !ok {
+				AvailableStyles[style.Name] = style
+			}
+		}
+	}
+}
+
+func readStyleYamlFile(filepath string) (TyperStyle, error) {
+	styleYaml := typerStyleYaml{}
+
+	data, err := os.ReadFile(filepath)
+	if err != nil {
+		return TyperStyle{}, fmt.Errorf("could not read file: %s", err)
+	}
+	err = yaml.Unmarshal(data, &styleYaml)
+	if err != nil {
+		return TyperStyle{}, fmt.Errorf("could not unmarshal style: %s", err)
+	}
+
+	style := TyperStyle{
+		Name:        styleYaml.Name,
+		Description: styleYaml.Description,
+		StyleType:   styleYaml.StyleType,
+	}
+
+	for name, colorStr := range styleYaml.Colors {
+		var color tcell.Color
+
+		if n, err := strconv.Atoi(colorStr); err == nil && n >= 0 && n < 256 {
+			color = tcell.ColorValid + tcell.Color(n)
+		} else if strings.HasPrefix(colorStr, "#") && len(colorStr) == 7 {
+			n, err := strconv.ParseInt(colorStr[1:], 16, 32)
+			if err != nil {
+				return TyperStyle{}, fmt.Errorf("could not parse color (%s): %s", colorStr, err)
+			}
+
+			color = tcell.NewHexColor(int32(n))
+		} else if c, ok := tcell.ColorNames[colorStr]; ok {
+			color = c
+		} else {
+			return TyperStyle{}, fmt.Errorf("could not parse color (%s): %s", colorStr, err)
+		}
+
+		pt := reflect.TypeOf(&style)
+		t := pt.Elem()
+		pv := reflect.ValueOf(&style)
+		v := pv.Elem()
+
+		for i := 0; i < t.NumField(); i++ {
+			field := v.Field(i)
+
+			if tag, ok := t.Field(i).Tag.Lookup("name"); ok && tag == name {
+				field.Set(reflect.ValueOf(color))
+			}
+		}
+	}
+
+	return style, nil
+}
+
+func SetCurrentStyle(screen tcell.Screen, styleName string) bool {
+	availableTypes := make([]string, 1)
+	availableTypes[0] = "8-color"
+	if screen.Colors() >= 16 {
+		availableTypes = append(availableTypes, "16-color")
+	}
+	if screen.Colors() >= 256 {
+		availableTypes = append(availableTypes, "256-color")
+	}
+	if screen.Colors() >= 16777216 {
+		availableTypes = append(availableTypes, "true-color")
+	}
+
+	if style, ok := AvailableStyles[styleName]; ok && slices.Index(availableTypes, style.StyleType) != -1 {
+		CurrentStyle = style
+
+		screen.SetStyle(tcell.StyleDefault.Foreground(CurrentStyle.BufferAreaFg).Background(CurrentStyle.BufferAreaBg))
+		screen.Sync()
+
+		return true
+	}
+	return false
+}

src/top_menu.go

@@ -4,7 +4,6 @@ import (
 	"fmt"
 	"github.com/gdamore/tcell/v2"
 	"path/filepath"
-	"slices"
 	"strconv"
 	"strings"
 )
@@ -22,7 +21,13 @@ func initTopMenu() {
 		Name: "File",
 		Action: func(window *Window) {
 			ClearDropdowns()
-			d := CreateDropdownMenu([]string{"New", "Save", "Open", "Close", "Quit"}, 0, 1, 0, func(i int) {
+
+			y := 0
+			if window.ShowTopMenu {
+				y++
+			}
+
+			d := CreateDropdownMenu([]string{"New", "Save", "Open", "Close", "Quit"}, 0, y, 0, func(i int) {
 				switch i {
 				case 0:
 					RunCommand(window, "new-buffer")
@@ -45,11 +50,19 @@ func initTopMenu() {
 		Name: "Edit",
 		Action: func(window *Window) {
 			ClearDropdowns()
-			d := CreateDropdownMenu([]string{"Copy", "Paste"}, 0, 1, 0, func(i int) {
+
+			y := 0
+			if window.ShowTopMenu {
+				y++
+			}
+
+			d := CreateDropdownMenu([]string{"Cut", "Copy", "Paste"}, 0, y, 0, func(i int) {
 				switch i {
 				case 0:
-					RunCommand(window, "copy")
+					RunCommand(window, "cut")
 				case 1:
+					RunCommand(window, "copy")
+				case 2:
 					RunCommand(window, "paste")
 				}
 				ClearDropdowns()
@@ -63,28 +76,24 @@ func initTopMenu() {
 		Name: "Buffers",
 		Action: func(window *Window) {
 			ClearDropdowns()
+
+			y := 0
+			if window.ShowTopMenu {
+				y++
+			}
+
 			buffersSlice := make([]string, 0)
-			for _, buffer := range Buffers {
+			for i, buffer := range Buffers {
 				if window.CurrentBuffer == buffer {
-					buffersSlice = append(buffersSlice, fmt.Sprintf("[%d] * %s", buffer.Id, buffer.Name))
+					buffersSlice = append(buffersSlice, fmt.Sprintf("[%d] * %s", i+1, buffer.Name))
 				} else {
-					buffersSlice = append(buffersSlice, fmt.Sprintf("[%d] %s", buffer.Id, buffer.Name))
+					buffersSlice = append(buffersSlice, fmt.Sprintf("[%d] %s", i+1, buffer.Name))
 				}
 			}
 
-			slices.Sort(buffersSlice)
-
-			d := CreateDropdownMenu(buffersSlice, 0, 1, 0, func(i int) {
-				start := strings.Index(buffersSlice[i], "[")
-				end := strings.Index(buffersSlice[i], "]")
-
-				id, err := strconv.Atoi(buffersSlice[i][start+1 : end])
-				if err != nil {
-					PrintMessage(window, fmt.Sprintf("Cannot convert buffer id '%s' to int", buffersSlice[i][start:end]))
-					return
-				}
-
-				window.CurrentBuffer = Buffers[id]
+			d := CreateDropdownMenu(buffersSlice, 0, y, 0, func(i int) {
+				window.CurrentBuffer = Buffers[i]
+				PrintMessage(window, fmt.Sprintf("Set current buffer to '%s'.", window.CurrentBuffer.Name))
 				ClearDropdowns()
 				window.CursorMode = CursorModeBuffer
 			})
@@ -100,7 +109,7 @@ func initTopMenu() {
 func drawTopMenu(window *Window) {
 	screen := window.screen
 
-	topMenuStyle := tcell.StyleDefault.Foreground(tcell.ColorWhite).Background(tcell.Color236)
+	topMenuStyle := tcell.StyleDefault.Background(CurrentStyle.TopMenuBg).Foreground(CurrentStyle.TopMenuFg)
 
 	sizeX, _ := screen.Size()
 
@@ -115,11 +124,40 @@ func drawTopMenu(window *Window) {
 	}
 
 	// Draw buffer info
+	bufferInfoMsg := getBufferInfoMsg(window)
+	if sizeX-len(bufferInfoMsg)-1 > currentX+2 {
+		drawText(screen, sizeX-len(bufferInfoMsg)-1, 0, sizeX-1, 0, topMenuStyle, bufferInfoMsg)
+	}
+}
+
+func getBufferInfoMsg(window *Window) string {
+	pathToFile := "Not set"
 	filename := "Not set"
+	if window.CurrentBuffer.filename != "" {
+		pathToFile = window.CurrentBuffer.filename
+	}
 	if filepath.Base(window.CurrentBuffer.filename) != "." {
 		filename = filepath.Base(window.CurrentBuffer.filename)
 	}
+
+	cursorPos := window.CurrentBuffer.CursorPos
 	cursorX, cursorY := window.GetCursorPos2D()
-	cursorInfo := fmt.Sprintf("File: %s Cursor: (%d,%d,%d) Words: %d", filename, cursorX+1, cursorY+1, window.CurrentBuffer.CursorPos+1, len(strings.Fields(window.CurrentBuffer.Contents)))
-	drawText(screen, sizeX-len(cursorInfo)-1, 0, sizeX-1, 0, topMenuStyle, cursorInfo)
+	cursorX++
+	cursorY++
+
+	chars := len(window.CurrentBuffer.Contents)
+	words := len(strings.Fields(window.CurrentBuffer.Contents))
+
+	ret := Config.BufferInfoMessage
+
+	ret = strings.ReplaceAll(ret, "\n", " ")
+	ret = strings.ReplaceAll(ret, "%F", pathToFile)
+	ret = strings.ReplaceAll(ret, "%f", filename)
+	ret = strings.ReplaceAll(ret, "%x", strconv.Itoa(cursorX))
+	ret = strings.ReplaceAll(ret, "%y", strconv.Itoa(cursorY))
+	ret = strings.ReplaceAll(ret, "%p", strconv.Itoa(cursorPos))
+	ret = strings.ReplaceAll(ret, "%c", strconv.Itoa(chars))
+	ret = strings.ReplaceAll(ret, "%w", strconv.Itoa(words))
+
+	return ret
 }

src/utils.go

@@ -53,3 +53,15 @@ func drawBox(s tcell.Screen, x1, y1, x2, y2 int, style tcell.Style) {
 
 	drawText(s, x1+1, y1+1, x2-1, y2-1, style, " ")
 }
+
+func DeleteFromSlice[T any](slice []T, i int) []T {
+	if i >= len(slice) {
+		return slice
+	} else if i < 0 {
+		return slice
+	} else if i == len(slice)-1 {
+		return slice[:len(slice)-1]
+	} else {
+		return append(slice[:i], slice[i+1:]...)
+	}
+}

src/window.go

@@ -4,6 +4,10 @@ import (
 	"github.com/gdamore/tcell/v2"
 	"log"
 	"slices"
+	"strconv"
+	"strings"
+	"time"
+	"unicode"
 )
 
 type CursorMode uint8
@@ -15,6 +19,13 @@ const (
 	CursorModeInputBar
 )
 
+var CursorModeNames = map[CursorMode]string{
+	CursorModeDisabled: "disabled",
+	CursorModeBuffer:   "buffer",
+	CursorModeDropdown: "dropdown",
+	CursorModeInputBar: "input_bar",
+}
+
 type Window struct {
 	ShowTopMenu   bool
 	ShowLineIndex bool
@@ -25,14 +36,17 @@ type Window struct {
 	CurrentBuffer *Buffer
 
 	screen tcell.Screen
+
+	closed bool
 }
 
 var mouseHeld = false
+var lastClick int64 = 0
 
 func CreateWindow() (*Window, error) {
 	window := Window{
-		ShowTopMenu:   true,
-		ShowLineIndex: true,
+		ShowTopMenu:   Config.ShowTopMenu,
+		ShowLineIndex: Config.ShowLineIndex,
 		CursorMode:    CursorModeBuffer,
 
 		CurrentBuffer: nil,
@@ -41,8 +55,11 @@ func CreateWindow() (*Window, error) {
 	}
 
 	// Create empty buffer if nil
-	if window.CurrentBuffer == nil {
-		window.CurrentBuffer = CreateBuffer("New File 1")
+	for i := 1; window.CurrentBuffer == nil; i++ {
+		buffer, err := CreateBuffer("New Buffer " + strconv.Itoa(i))
+		if err == nil {
+			window.CurrentBuffer = buffer
+		}
 	}
 
 	// Create tcell screen
@@ -55,73 +72,28 @@ func CreateWindow() (*Window, error) {
 		log.Fatalf("Failed to initialize screen: %s", err)
 	}
 
-	// Set screen style
-	screen.SetStyle(tcell.StyleDefault.Foreground(tcell.ColorWhite).Background(tcell.Color234))
-
 	// Enable mouse
 	screen.EnableMouse()
 
 	// Set window screen field
 	window.screen = screen
 
+	// Try to set screen style to selected one
+	if ok := SetCurrentStyle(screen, Config.SelectedStyle); !ok {
+		// Try to set screen style to selected fallback one
+		if ok := SetCurrentStyle(screen, Config.FallbackStyle); !ok {
+			// Use hard-coded fallback style
+			screen.SetStyle(tcell.StyleDefault.Foreground(CurrentStyle.BufferAreaFg).Background(CurrentStyle.BufferAreaBg))
+			PrintMessage(&window, "Could not set style either to selected one nor to fallback one!")
+		}
+	}
+
 	// Initialize top menu
 	initTopMenu()
 
 	return &window, nil
 }
 
-func (window *Window) drawCurrentBuffer() {
-	buffer := window.CurrentBuffer
-
-	x, y, _, _ := window.GetTextAreaDimensions()
-
-	bufferX, bufferY, _, _ := window.GetTextAreaDimensions()
-
-	normalStyle := tcell.StyleDefault.Foreground(tcell.ColorWhite).Background(tcell.Color234)
-	selectedStyle := tcell.StyleDefault.Foreground(tcell.ColorWhite).Background(tcell.Color243)
-
-	for i, r := range buffer.Contents {
-		if r == '\n' {
-			x = 0
-			if window.ShowLineIndex {
-				x += bufferX
-			}
-			y++
-		}
-
-		if r != '\n' {
-			x++
-		}
-
-		if x-buffer.OffsetX-1 < bufferX {
-			continue
-		}
-		if y-buffer.OffsetY < bufferY {
-			continue
-		}
-
-		if buffer.Selection != nil && buffer.Selection.selectionEnd >= buffer.Selection.selectionStart && i >= buffer.Selection.selectionStart && i <= buffer.Selection.selectionEnd {
-			window.screen.SetContent(x-buffer.OffsetX-1, y-buffer.OffsetY, r, nil, selectedStyle)
-		} else if buffer.Selection != nil && i <= buffer.Selection.selectionStart && i >= buffer.Selection.selectionEnd {
-			window.screen.SetContent(x-buffer.OffsetX-1, y-buffer.OffsetY, r, nil, selectedStyle)
-		} else {
-			window.screen.SetContent(x-buffer.OffsetX-1, y-buffer.OffsetY, r, nil, normalStyle)
-		}
-	}
-
-	// Draw cursor
-	cursorX, cursorY := window.GetCursorPos2D()
-
-	cursorX += bufferX
-	cursorY += bufferY
-
-	cursorX -= window.CurrentBuffer.OffsetX
-	cursorY -= window.CurrentBuffer.OffsetY
-
-	r, _, _, _ := window.screen.GetContent(cursorX, cursorY)
-	window.screen.SetContent(cursorX, cursorY, r, nil, selectedStyle)
-}
-
 func (window *Window) Draw() {
 	// Clear screen
 	window.screen.Clear()
@@ -138,7 +110,7 @@ func (window *Window) Draw() {
 
 	// Draw current buffer
 	if window.CurrentBuffer != nil {
-		window.drawCurrentBuffer()
+		drawBuffer(window)
 	}
 
 	// Draw input bar
@@ -162,7 +134,9 @@ func (window *Window) Draw() {
 
 	// Update screen
 	window.screen.Show()
+}
 
+func (window *Window) ProcessEvents() {
 	// Poll event
 	ev := window.screen.PollEvent()
 
@@ -172,25 +146,56 @@ func (window *Window) Draw() {
 		window.screen.Sync()
 		window.SyncBufferOffset()
 	case *tcell.EventMouse:
-		window.mouseInput(ev)
+		window.handleMouseInput(ev)
 	case *tcell.EventKey:
-		window.input(ev)
+		window.handleKeyInput(ev)
 	}
 }
 
-func (window *Window) input(ev *tcell.EventKey) {
+func (window *Window) handleKeyInput(ev *tcell.EventKey) {
 	if ev.Key() == tcell.KeyRight { // Navigation Keys
 		if window.CursorMode == CursorModeBuffer {
+			// Get original cursor position
+			pos := window.CurrentBuffer.CursorPos
+
+			if ev.Modifiers()&tcell.ModCtrl != 0 {
+				// Move cursor to start of word
+				// Set variable to one character right of current position
+				endOfWord := pos + 1
+				if endOfWord >= len(window.CurrentBuffer.Contents) {
+					endOfWord = len(window.CurrentBuffer.Contents)
+				}
+
+				// Skip all spaces
+				for endOfWord < len(window.CurrentBuffer.Contents) && unicode.IsSpace(rune(window.CurrentBuffer.Contents[endOfWord])) {
+					endOfWord++
+				}
+
+				// Find end of word
+				for endOfWord < len(window.CurrentBuffer.Contents) && !unicode.IsSpace(rune(window.CurrentBuffer.Contents[endOfWord])) {
+					endOfWord++
+				}
+
+				window.SetCursorPos(endOfWord)
+			} else {
+				// Move cursor one character backwards
+				window.SetCursorPos(window.CurrentBuffer.CursorPos + 1)
+			}
+
 			// Add to selection
-			if ev.Modifiers() == tcell.ModShift {
+			if ev.Modifiers()&tcell.ModShift != 0 {
 				if window.CurrentBuffer.Selection == nil {
+					// Cancel cursor movement when creating selection without holding ctrl
+					if ev.Modifiers()&tcell.ModCtrl == 0 {
+						window.SetCursorPos(pos)
+					}
+
 					window.CurrentBuffer.Selection = &Selection{
-						selectionStart: window.CurrentBuffer.CursorPos,
+						selectionStart: pos,
 						selectionEnd:   window.CurrentBuffer.CursorPos,
 					}
-					return
 				} else {
-					window.CurrentBuffer.Selection.selectionEnd = window.CurrentBuffer.CursorPos + 1
+					window.CurrentBuffer.Selection.selectionEnd = window.CurrentBuffer.CursorPos
 				}
 				// Prevent selecting dummy character at the end of the buffer
 				if window.CurrentBuffer.Selection.selectionEnd >= len(window.CurrentBuffer.Contents) {
@@ -199,46 +204,83 @@ func (window *Window) input(ev *tcell.EventKey) {
 			} else if window.CurrentBuffer.Selection != nil {
 				// Unset selection
 				window.CurrentBuffer.Selection = nil
-				return
 			}
-			// Move cursor
-			window.SetCursorPos(window.CurrentBuffer.CursorPos + 1)
 		}
 	} else if ev.Key() == tcell.KeyLeft {
 		if window.CursorMode == CursorModeBuffer {
+			// Get original cursor position
+			pos := window.CurrentBuffer.CursorPos
+
+			if ev.Modifiers()&tcell.ModCtrl != 0 {
+				// Move cursor to start of word
+				// Set variable to one character left of current position
+				startOfWord := pos - 1
+				if startOfWord < 0 {
+					startOfWord = 0
+				}
+
+				// Skip all spaces
+				for startOfWord >= 0 && len(window.CurrentBuffer.Contents) != 0 && unicode.IsSpace(rune(window.CurrentBuffer.Contents[startOfWord])) {
+					startOfWord--
+				}
+
+				// Find start of word
+				for startOfWord >= 0 && len(window.CurrentBuffer.Contents) != 0 && !unicode.IsSpace(rune(window.CurrentBuffer.Contents[startOfWord])) {
+					startOfWord--
+				}
+
+				// Move one character to the right
+				startOfWord++
+
+				window.SetCursorPos(startOfWord)
+			} else {
+				// Move cursor one character backwards
+				window.SetCursorPos(window.CurrentBuffer.CursorPos - 1)
+			}
+
 			// Add to selection
-			if ev.Modifiers() == tcell.ModShift {
+			if ev.Modifiers()&tcell.ModShift != 0 {
 				if window.CurrentBuffer.Selection == nil {
+					// Cancel cursor movement when creating selection without holding ctrl
+					if ev.Modifiers()&tcell.ModCtrl == 0 {
+						window.SetCursorPos(pos)
+					}
+
 					window.CurrentBuffer.Selection = &Selection{
-						selectionStart: window.CurrentBuffer.CursorPos,
+						selectionStart: pos,
 						selectionEnd:   window.CurrentBuffer.CursorPos,
 					}
 					return
 				} else {
-					window.CurrentBuffer.Selection.selectionEnd = window.CurrentBuffer.CursorPos - 1
+					window.CurrentBuffer.Selection.selectionEnd = window.CurrentBuffer.CursorPos
 				}
 			} else if window.CurrentBuffer.Selection != nil {
 				// Unset selection
 				window.CurrentBuffer.Selection = nil
 				return
 			}
-			// Move cursor
-			window.SetCursorPos(window.CurrentBuffer.CursorPos - 1)
 		}
 	} else if ev.Key() == tcell.KeyUp {
 		if window.CursorMode == CursorModeBuffer {
 			// Get original cursor position
 			pos := window.CurrentBuffer.CursorPos
-			// Move cursor
-			x, y := window.GetCursorPos2D()
-			window.SetCursorPos2D(x, y-1)
+
+			if ev.Modifiers()&tcell.ModCtrl != 0 {
+				// Move cursor to top of buffer
+				window.SetCursorPos(0)
+			} else {
+				// Move cursor one line up
+				x, y := window.GetCursorPos2D()
+				window.SetCursorPos2D(x, y-1)
+			}
+
 			// Add to selection
-			if ev.Modifiers() == tcell.ModShift {
+			if ev.Modifiers()&tcell.ModShift != 0 {
 				// Add to selection
 				if window.CurrentBuffer.Selection == nil {
 					window.CurrentBuffer.Selection = &Selection{
-						selectionStart: window.CurrentBuffer.CursorPos,
-						selectionEnd:   pos,
+						selectionStart: pos,
+						selectionEnd:   window.CurrentBuffer.CursorPos,
 					}
 				} else {
 					window.CurrentBuffer.Selection.selectionEnd = window.CurrentBuffer.CursorPos
@@ -273,11 +315,18 @@ func (window *Window) input(ev *tcell.EventKey) {
 		if window.CursorMode == CursorModeBuffer {
 			// Get original cursor position
 			pos := window.CurrentBuffer.CursorPos
-			// Move cursor
-			x, y := window.GetCursorPos2D()
-			window.SetCursorPos2D(x, y+1)
+
+			if ev.Modifiers()&tcell.ModCtrl != 0 {
+				// Move cursor to bottom of buffer
+				window.SetCursorPos(len(window.CurrentBuffer.Contents))
+			} else {
+				// Move cursor one line down
+				x, y := window.GetCursorPos2D()
+				window.SetCursorPos2D(x, y+1)
+			}
+
 			// Add to selection
-			if ev.Modifiers() == tcell.ModShift {
+			if ev.Modifiers()&tcell.ModShift != 0 {
 				// Add to selection
 				if window.CurrentBuffer.Selection == nil {
 					window.CurrentBuffer.Selection = &Selection{
@@ -332,9 +381,9 @@ func (window *Window) input(ev *tcell.EventKey) {
 	}
 
 	// Check key bindings
-	for _, keybinding := range Keybinds {
-		if keybinding.IsPressed(ev) && slices.Index(keybinding.cursorModes, window.CursorMode) != -1 {
-			RunCommand(window, keybinding.command)
+	for _, keybinding := range Keybindings.Keybindings {
+		if keybinding.IsPressed(ev) && slices.Index(keybinding.GetCursorModes(), window.CursorMode) != -1 {
+			RunCommand(window, keybinding.Command)
 			return
 		}
 	}
@@ -345,7 +394,17 @@ func (window *Window) input(ev *tcell.EventKey) {
 			str := window.CurrentBuffer.Contents
 			index := window.CurrentBuffer.CursorPos
 
-			if index != 0 {
+			if window.CurrentBuffer.Selection != nil {
+				edge1, edge2 := window.CurrentBuffer.GetSelectionEdges()
+				if edge2 == len(window.CurrentBuffer.Contents) {
+					edge2 = len(window.CurrentBuffer.Contents) - 1
+				}
+
+				str = str[:edge1] + str[edge2+1:]
+				window.CurrentBuffer.Contents = str
+				window.SetCursorPos(edge1)
+				window.CurrentBuffer.Selection = nil
+			} else if index != 0 {
 				str = str[:index-1] + str[index:]
 				window.CurrentBuffer.Contents = str
 				window.SetCursorPos(window.CurrentBuffer.CursorPos - 1)
@@ -363,6 +422,20 @@ func (window *Window) input(ev *tcell.EventKey) {
 	} else if ev.Key() == tcell.KeyTab {
 		if window.CursorMode == CursorModeBuffer {
 			str := window.CurrentBuffer.Contents
+
+			// Remove selected text
+			if window.CurrentBuffer.Selection != nil {
+				edge1, edge2 := window.CurrentBuffer.GetSelectionEdges()
+				if edge2 == len(window.CurrentBuffer.Contents) {
+					edge2 = len(window.CurrentBuffer.Contents) - 1
+				}
+
+				str = str[:edge1] + str[edge2+1:]
+				window.CurrentBuffer.Contents = str
+				window.SetCursorPos(edge1)
+				window.CurrentBuffer.Selection = nil
+			}
+
 			index := window.CurrentBuffer.CursorPos
 
 			if index == len(str) {
@@ -376,6 +449,20 @@ func (window *Window) input(ev *tcell.EventKey) {
 	} else if ev.Key() == tcell.KeyEnter {
 		if window.CursorMode == CursorModeBuffer {
 			str := window.CurrentBuffer.Contents
+
+			// Remove selected text
+			if window.CurrentBuffer.Selection != nil {
+				edge1, edge2 := window.CurrentBuffer.GetSelectionEdges()
+				if edge2 == len(window.CurrentBuffer.Contents) {
+					edge2 = len(window.CurrentBuffer.Contents) - 1
+				}
+
+				str = str[:edge1] + str[edge2+1:]
+				window.CurrentBuffer.Contents = str
+				window.SetCursorPos(edge1)
+				window.CurrentBuffer.Selection = nil
+			}
+
 			index := window.CurrentBuffer.CursorPos
 
 			if index == len(str) {
@@ -399,6 +486,20 @@ func (window *Window) input(ev *tcell.EventKey) {
 	} else if ev.Key() == tcell.KeyRune {
 		if window.CursorMode == CursorModeBuffer {
 			str := window.CurrentBuffer.Contents
+
+			// Remove selected text
+			if window.CurrentBuffer.Selection != nil {
+				edge1, edge2 := window.CurrentBuffer.GetSelectionEdges()
+				if edge2 == len(window.CurrentBuffer.Contents) {
+					edge2 = len(window.CurrentBuffer.Contents) - 1
+				}
+
+				str = str[:edge1] + str[edge2+1:]
+				window.CurrentBuffer.Contents = str
+				window.SetCursorPos(edge1)
+				window.CurrentBuffer.Selection = nil
+			}
+
 			index := window.CurrentBuffer.CursorPos
 
 			if index == len(str) {
@@ -424,31 +525,105 @@ func (window *Window) input(ev *tcell.EventKey) {
 	}
 }
 
-func (window *Window) mouseInput(ev *tcell.EventMouse) {
+func (window *Window) handleMouseInput(ev *tcell.EventMouse) {
 	mouseX, mouseY := ev.Position()
-	bufferMouseX, bufferMouseY := window.AbsolutePosToBufferArea(mouseX, mouseY)
 
 	// Left click was pressed
 	if ev.Buttons() == tcell.Button1 {
+		// Get last click time
+		lastClickTime := time.UnixMilli(lastClick)
 		// Ensure click was in buffer area
 		x1, y1, x2, y2 := window.GetTextAreaDimensions()
 		if mouseX >= x1 && mouseY >= y1 && mouseX <= x2 && mouseY <= y2 {
-
+			currentX, currentY := window.GetCursorPos2D()
+			bufferMouseX, bufferMouseY := window.AbsolutePosToCursorPos2D(mouseX, mouseY)
 			if mouseHeld {
 				// Add to selection
 				if window.CurrentBuffer.Selection == nil {
 					window.CurrentBuffer.Selection = &Selection{
 						selectionStart: window.CurrentBuffer.CursorPos,
-						selectionEnd:   window.CursorPos2DToCursorPos(bufferMouseX+window.CurrentBuffer.OffsetX, bufferMouseY+window.CurrentBuffer.OffsetY),
+						selectionEnd:   window.CursorPos2DToCursorPos(bufferMouseX, bufferMouseY),
 					}
+
+					// Set last click time
+					lastClick = time.Now().UnixMilli()
+
 					return
 				} else {
-					window.CurrentBuffer.Selection.selectionEnd = window.CursorPos2DToCursorPos(bufferMouseX+window.CurrentBuffer.OffsetX, bufferMouseY+window.CurrentBuffer.OffsetY)
+					window.CurrentBuffer.Selection.selectionEnd = window.CursorPos2DToCursorPos(bufferMouseX, bufferMouseY)
 				}
 				// Prevent selecting dummy character at the end of the buffer
 				if window.CurrentBuffer.Selection.selectionEnd >= len(window.CurrentBuffer.Contents) {
 					window.CurrentBuffer.Selection.selectionEnd = len(window.CurrentBuffer.Contents) - 1
 				}
+			} else if currentX == bufferMouseX && currentY == bufferMouseY && window.CurrentBuffer.CursorPos < len(window.CurrentBuffer.Contents) && time.Since(lastClickTime).Milliseconds() < 300 {
+				selectedText := window.CurrentBuffer.GetSelectedText()
+				if window.CurrentBuffer.Selection == nil || strings.HasSuffix(selectedText, "\n") {
+					// Select word
+					startOfWord := window.CurrentBuffer.CursorPos
+					endOfWord := window.CurrentBuffer.CursorPos
+
+					// Find end of word
+					for i := window.CurrentBuffer.CursorPos + 1; i < len(window.CurrentBuffer.Contents); i++ {
+						currentRune := rune(window.CurrentBuffer.Contents[i])
+						if unicode.IsLetter(currentRune) || unicode.IsDigit(currentRune) || currentRune == '_' {
+							endOfWord++
+						} else {
+							break
+						}
+					}
+
+					// Find start of word
+					for i := window.CurrentBuffer.CursorPos - 1; i >= 0; i-- {
+						currentRune := rune(window.CurrentBuffer.Contents[i])
+						if unicode.IsLetter(currentRune) || unicode.IsDigit(currentRune) || currentRune == '_' {
+							startOfWord--
+						} else {
+							break
+						}
+					}
+
+					// Add to selection
+					window.CurrentBuffer.Selection = &Selection{
+						selectionStart: startOfWord,
+						selectionEnd:   endOfWord,
+					}
+				} else {
+					// Select line
+					startOfLine := window.CurrentBuffer.CursorPos
+					endOfLine := window.CurrentBuffer.CursorPos
+
+					// Find end of line
+					for i := window.CurrentBuffer.CursorPos + 1; i < len(window.CurrentBuffer.Contents); i++ {
+						currentLetter := window.CurrentBuffer.Contents[i]
+
+						endOfLine++
+						if currentLetter == '\n' {
+							break
+						}
+					}
+
+					// Find start of line
+					for i := window.CurrentBuffer.CursorPos - 1; i >= 0; i-- {
+						currentLetter := window.CurrentBuffer.Contents[i]
+						if currentLetter != '\n' {
+							startOfLine--
+						} else {
+							break
+						}
+					}
+
+					// Add to selection
+					window.CurrentBuffer.Selection = &Selection{
+						selectionStart: startOfLine,
+						selectionEnd:   endOfLine,
+					}
+				}
+
+				// Set last click time
+				lastClick = time.Now().UnixMilli()
+
+				return
 			} else {
 				// Clear selection
 				if window.CurrentBuffer.Selection != nil {
@@ -456,7 +631,10 @@ func (window *Window) mouseInput(ev *tcell.EventMouse) {
 				}
 			}
 			// Move cursor
-			window.SetCursorPos2D(bufferMouseX+window.CurrentBuffer.OffsetX, bufferMouseY+window.CurrentBuffer.OffsetY)
+			window.SetCursorPos2D(bufferMouseX, bufferMouseY)
+
+			// Set last click time
+			lastClick = time.Now().UnixMilli()
 		}
 		mouseHeld = true
 	} else if ev.Buttons() == tcell.ButtonNone {
@@ -467,8 +645,11 @@ func (window *Window) mouseInput(ev *tcell.EventMouse) {
 }
 
 func (window *Window) Close() {
-	window.screen.Fini()
-	window.screen = nil
+	window.closed = true
+	err := window.screen.PostEvent(tcell.NewEventInterrupt(nil))
+	if err != nil {
+		return
+	}
 }
 
 func (window *Window) GetTextAreaDimensions() (int, int, int, int) {
@@ -531,12 +712,48 @@ func (window *Window) CursorPos2DToCursorPos(x, y int) int {
 	return lines[y].charIndex + x
 }
 
-func (window *Window) AbsolutePosToBufferArea(x, y int) (int, int) {
+func (window *Window) AbsolutePosToCursorPos2D(x, y int) (int, int) {
 	x1, y1, _, _ := window.GetTextAreaDimensions()
 
 	x -= x1
 	y -= y1
 
+	x += window.CurrentBuffer.OffsetX
+	y += window.CurrentBuffer.OffsetY
+
+	if x < 0 {
+		x = 0
+	}
+	if y < 0 {
+		y = 0
+	}
+
+	split := strings.SplitAfter(window.CurrentBuffer.Contents+" ", "\n")
+
+	if y >= len(split) {
+		y = len(split) - 1
+	}
+	line := split[y]
+
+	posInLine := make([]int, 0)
+	for i, char := range []rune(line) {
+		if char == '\t' {
+			for j := 0; j < Config.TabIndentation; j++ {
+				posInLine = append(posInLine, i)
+			}
+		} else {
+			posInLine = append(posInLine, i)
+		}
+	}
+
+	if len(posInLine) == 0 {
+		x = 0
+	} else if x >= len(posInLine) {
+		x = posInLine[len(posInLine)-1]
+	} else {
+		x = posInLine[x]
+	}
+
 	return x, y
 }