meson error

config/init.lisp

@@ -86,3 +86,7 @@
 (map-key "\"" editor-split-screen-vertical "user")
 (map-key "o" editor-switch-next-pane "user")
 (map-key "*" editor-unify-panes "user")
+(map-key "CTRL-y" editor-paste "no-prefix")
+(map-key "CTRL-k" editor-cut-end-line "no-prefix")
+(map-key "a" editor-move-cursor-beg-buffer "user")
+(map-key "z" editor-move-cursor-end-buffer "user")

include/buffer.h

@@ -57,7 +57,13 @@ int bufferSaveAll(void);
 
 void bufferFind(struct buffer_t *buf);
 void bufferFindReverse(struct buffer_t* buf);
-
+void bufferInsertNewLine();
+void bufferInsertBytes(const char *src, int n);
+void bufferDelBytes();
+void bufferRowInsertBytes(struct buffer_t *buffer, row_t *row, int at, const char *src, int n);
+void bufferRowDelByte(struct buffer_t *buffer, row_t *row, int at, int n);
+void bufferInsertRow(struct buffer_t *buffer, int at, char *s, size_t len);
+void bufferFreeRow(row_t *row);
 
 
 #endif

include/builtins.h

@@ -45,12 +45,16 @@ Lisp editorSwitchNextPane(Lisp args, LispError *e, LispContext ctx);
 Lisp editorUnifiedPanes(Lisp args, LispError *e, LispContext ctx);
 
 
+Lisp editorPaste(Lisp args, LispError *e, LispContext ctx);
+Lisp editorCutEndLine(Lisp args, LispError *e, LispContext ctx);
 
-
-
+Lisp editorMoveBegBuffer(Lisp args, LispError *e, LispContext ctx);
+Lisp editorMoveEndBuffer(Lisp args, LispError *e, LispContext ctx);
 
 // Other
 
+
+
 void free_structs(void);
 
 #endif

include/data.h

@@ -19,6 +19,13 @@ typedef struct row {
   char *chars;  /**< Characters of the line */
 } row_t;
 
+typedef struct context_buffer_t
+{
+  int editor_x, editor_y;
+  int width, height;
+  row_t *rows;
+} ContextBuffer;
+
 /**
  * @brief Split modes for screen layout
  */
@@ -113,6 +120,8 @@ struct editorConfig {
 
   row_t *rows;        /**< Store all the rows printed */
 
+  ContextBuffer* context_buffers;
+
   int dirty;
 
   char *status_msg;

include/define.h

@@ -2,15 +2,17 @@
 #define DEFINE_H_
 
 #define CTRL_KEY(k) ((k) & 0x1f)
+#define ALT(k) ((k) | 0x200)  // set bit 9 to mark as Option combo
+
 
 #define ESCAPE '\x1b'
 #define CURSOR_TOP_LEFT "\x1b[H"
 #define HIDE_CURSOR "\x1b[?25l"
 #define SHOW_CURSOR "\x1b[?25h"
 #define ERASE_END_LINE "\x1b[K"
-#define TAB "\x9"
+#define TAB "\t"
 #define SPACE "\x20"
-// #define APP_DEBUG
+#define APP_DEBUG
 
 enum editorKey_e {
     BACKSPACE = 127,
@@ -29,4 +31,12 @@ enum editorKey_e {
 
 #define BELUGA_VERSION "2.4"
 
+#ifdef __APPLE__
+#define CLIPBOARD_COPY_CMD  "pbcopy"
+#define CLIPBOARD_PASTE_CMD "pbpaste"
+#else
+#define CLIPBOARD_COPY_CMD  "xclip -selection clipboard"
+#define CLIPBOARD_PASTE_CMD "xclip -selection clipboard -o"
+#endif
+
 #endif // DEFINE_H_

include/editor_op.h

@@ -3,10 +3,11 @@
 
 #include "data.h"
 
-void bufferInsertNewLine();
-void bufferInsertBytes(char *src, int n);
 void editorSetStatusMessage(const char *fmt, ...);
-void bufferDelBytes();
+int editorRowCharCount(row_t *row, int x);
+int editorRowCxToByte(const row_t *row, int cursor_x);
+char *editorGetClipboard(void);
+void editorSetClipboard(const char *text, int len);
 
 
 #endif // EDITOR_OP_H_

include/file_io.h

@@ -2,8 +2,6 @@
 #define FILE_IO_H_
 
 #include "data.h"
-#include "row_op.h"
-#include "terminal.h"
 #include <stdio.h>
 #include <stdlib.h>
 #include <sys/types.h>

include/input.h

@@ -22,7 +22,7 @@
 
 char *editorPrompt(char *prompt, char * PlaceHolder, char bPathMode);
 
-const char *file_completion(const char *path);
+const char *fileCompletion(const char *path);
 
 int editorMoveCursor(int key);
 

include/row_op.h

@@ -8,11 +8,8 @@
 #include <time.h>
 #include <unistd.h>
 
-void bufferInsertRow(struct buffer_t *buffer, int at, char *s, size_t len);
-int editorRowCxToByte(const row_t *row, int cursor_x);
-void bufferFreeRow(row_t *row);
-int editorRowCharCount(row_t *row, int x);
-void bufferRowInsertBytes(struct buffer_t *buffer, row_t *row, int at, char *src, int n);
-void bufferRowDelByte(struct buffer_t *buffer, row_t *row, int at, int n);
+
+
+
 
 #endif // ROW_OP_H_

include/syntax_highlighter.h

@@ -1,7 +1,6 @@
 #ifndef SYNTAX_HIGHLIGHTER_H_
 #define SYNTAX_HIGHLIGHTER_H_
 
-#include "color.h"
 
 // Color codes that only affect foreground, preserving your background color
 #define COLOR_RESET         "\x1b[39m"            // Reset all (4 bytes)
@@ -20,4 +19,3 @@ typedef enum {
 char *highlight_line(const char * line, int *length);
 
 #endif
-

include/terminal.h

@@ -4,8 +4,6 @@
 
 /* includes */
 
-#include "data.h"
-#include "define.h"
 #include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -31,7 +29,7 @@ int getCursorPosition(int *rows, int *cols);
 
 int getWindowSize(int *rows, int *cols);
 
-char *key_to_string(int key);
+char *keyToString(int key);
 
 void appDebug(const char *fmt, ...);
 

main.c

@@ -11,13 +11,10 @@
 
 #include "include/buffer.h"
 #include "include/split_screen.h"
-#include <stdio.h>
-#include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 
 #include "include/data.h"
-#include "include/file_io.h"
 #include "include/init.h"
 #include "include/input.h"
 #include "include/editor_op.h"

meson.build

@@ -30,4 +30,6 @@ src_files = files(
 executable('beluga',
   src_files,
   dependencies: [m]
+)
+  dependencies: [m]
 )

src/buffer.c

@@ -15,7 +15,6 @@
 
 #include "include/input.h"
 
-extern struct editorConfig E;
 
 /**
  * @brief Finds a buffer by filename
@@ -284,7 +283,6 @@ void bufferFind(struct buffer_t* buf)
 {
     appDebug("searching\n");
     char* query = editorPrompt("Search: %s (ESC to cancel)", "", 0);
-    EditorPane* active = splitScreenGetActivePane();
 
     if (query == NULL)
         return;
@@ -306,7 +304,6 @@ void bufferFindReverse(struct buffer_t* buf)
 {
     appDebug("searching\n");
     char* query = editorPrompt("Reverse search: %s (ESC to cancel)", "", 0);
-    EditorPane* active = splitScreenGetActivePane();
 
     if (query == NULL)
         return;
@@ -325,3 +322,156 @@ void bufferFindReverse(struct buffer_t* buf)
     }
     free(query);
 }
+
+void bufferInsertRow(struct buffer_t *buffer, int at, char *s, size_t len) {
+  if (at < 0 || at > buffer->numrows)
+    return;
+
+  row_t *tmp = realloc(buffer->row, sizeof(row_t) * (buffer->numrows + 1));
+  if (!tmp)
+    return;
+  buffer->row = tmp;
+
+  /* Shift existing rows to make room at 'at' — no at++ */
+  if (at < buffer->numrows) {
+    memmove(&buffer->row[at + 1], &buffer->row[at],
+            sizeof(row_t) * (buffer->numrows - at)); /* not -at+1 */
+  }
+
+  buffer->row[at].size  = len;
+  buffer->row[at].cap   = len + 1;
+  buffer->row[at].chars = malloc(len + 1);
+  if (!buffer->row[at].chars)
+    return;
+  memcpy(buffer->row[at].chars, s, len);
+  buffer->row[at].chars[len] = '\0'; /* always NUL-terminate */
+
+  buffer->numrows++;
+  buffer->dirty++;
+}
+
+void bufferFreeRow(row_t *row) { free(row->chars); }
+
+/**
+ * \fn editorRowInsertChar(erow *row, int at, int c)
+ * \param at Index of where we want to insert the char */
+
+void bufferRowInsertBytes(struct buffer_t *buffer, row_t *row, int at,
+                          const char *src, int n) {
+  if (buffer->state == READ_ONLY)
+    return;
+  if (row->size + n + 1 > row->cap) {
+    row->cap = (row->size + n + 1) * 2;
+    row->chars = realloc(row->chars, row->cap);
+  }
+  memmove(row->chars + at + n, row->chars + at, row->size - at);
+  memcpy(row->chars + at, src, n);
+  row->size += n;
+  row->chars = realloc(row->chars, row->size + 2);
+  ++buffer->dirty;
+}
+
+/**
+ * \fn bufferRowDelChar(struct bufferConfig *E, frow *frow, int at)
+ * \brief Delete the a char at the chosen position on the given row
+ * \param at Index of the char to delete
+ * \param row Row on operation is made */
+void bufferRowDelByte(struct buffer_t *buffer, row_t *row, int at, int n) {
+    if (buffer->state == READ_ONLY)
+        return;
+    if (at < 0 || at >= row->size)
+        return;
+  memmove(row->chars + at, row->chars + at + n, row->size - at - n);
+  row->size -= n;
+  row->chars[row->size] = '\0';
+  buffer->x -= n;
+  ++buffer->dirty;
+}
+
+
+void bufferInsertBytes(const char* src, int n)
+{
+    appDebug("bufferInsertBytes \r\n");
+    EditorPane* active = splitScreenGetActivePane();
+    struct buffer_t* buf = bufferFindById(active->buffer_id);
+    if (buf->y == buf->numrows)
+    {
+        bufferInsertRow(buf, buf->numrows, "", 0);
+    }
+    bufferRowInsertBytes(buf, &buf->row[buf->y], buf->x, src, n);
+    buf->x += n;
+}
+
+void bufferDelBytes(void)
+{
+    EditorPane* active = splitScreenGetActivePane();
+    struct buffer_t* buf = bufferFindById(active->buffer_id);
+
+    /* Nothing to delete */
+    if (buf->numrows == 0) return;
+    if (buf->x == 0 && buf->y == 0) return;
+
+    /* Use row_offset, not col_offset, for row indexing */
+    row_t* r = &buf->row[buf->y];
+
+    if (buf->x > 0)
+    {
+        int byte_end = editorRowCxToByte(r, buf->x);
+        int byte_start = editorRowCxToByte(r, buf->x - 1);
+        int char_width = byte_end - byte_start; /* byte width of the character */
+
+        bufferRowDelByte(buf, r, byte_start, char_width);
+        E.dirty = 1;
+    }
+    else
+    {
+        /* Merge current row into the previous one */
+        row_t* prev = &buf->row[buf->y - 1];  // FIX: was buf->y (same as r)
+        int prev_char_count = editorRowCharCount(prev, prev->size);
+
+        bufferRowInsertBytes(buf, prev, prev->size, r->chars, r->size);
+        free(r->chars);
+        r->chars = NULL;
+
+        memmove(&buf->row[buf->y],
+                &buf->row[buf->y + 1],
+                sizeof(row_t) * (buf->numrows - buf->y - 1));
+        buf->numrows--;
+
+        active->cursor_x = prev_char_count;
+        buf->x = prev_char_count;
+        active->cursor_y--;
+        buf->y--;
+        E.dirty = 1;
+    }
+}
+
+void bufferInsertNewLine(void) {
+    appDebug("Inserting new line\n");
+    EditorPane *active = splitScreenGetActivePane();
+    struct buffer_t *buf = bufferFindById(active->buffer_id);
+
+    appDebug("buf x %d\n", buf->x);
+
+    if (buf->y >= buf->numrows) {
+        /* Cursor is past the last row: just append a blank line */
+        bufferInsertRow(buf, buf->numrows, "", 0);
+    } else {
+        row_t *row = &buf->row[buf->y];
+
+        /* Insert the tail (from cursor to end) as a new row below */
+        bufferInsertRow(buf, buf->y + 1, &row->chars[buf->x], row->size - buf->x);
+
+        /* Re-fetch: realloc inside bufferInsertRow may have moved the array */
+        row = &buf->row[buf->y];
+
+        /* Truncate the current row at the cursor */
+        row->size           = buf->x;
+        row->chars[row->size] = '\0';
+        /* Do NOT touch row->cap — the allocation is still valid */
+    }
+
+    buf->y++;
+    buf->x = 0;
+    appDebug("Insert new line done\n");
+}

src/builtins.c

@@ -13,8 +13,9 @@
 #include "../include/editor_op.h"
 #include "../include/file_io.h"
 #include "../include/input.h"
-#include "../include/row_op.h"
+#include "../include/terminal.h"
 #include "../include/split_screen.h"
+#include "../include/completion.h"
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -223,8 +224,6 @@ Lisp l_editorInsertNewLine(Lisp args, LispError *e, LispContext ctx) {
  * @note Uses E.constantes.TAB_LENGTH for indentation width
  */
 Lisp l_editorInserTab(Lisp args, LispError *e, LispContext ctx) {
-  EditorPane *active = splitScreenGetActivePane();
-  struct buffer_t *buf = bufferFindById(active->buffer_id);
   for (int i = 0; i < E.constantes.TAB_LENGTH; ++i) {
     bufferInsertBytes(" ", 1);
   }
@@ -359,7 +358,7 @@ Lisp editorOpenFile(Lisp args, LispError *e, LispContext ctx) {
  * @note Uses first character of the string argument
  */
 Lisp editorPrintC(Lisp args, LispError *e, LispContext ctx) {
-  char *src = lisp_string(lisp_car(args));
+  const char *src = lisp_string(lisp_car(args));
   bufferInsertBytes(src, strlen(src));
   return lisp_null();
 }
@@ -514,3 +513,49 @@ Lisp editorPrefix(Lisp args, LispError *e, LispContext ctx) {
           64);
   return lisp_null();
 }
+
+Lisp editorPaste(Lisp args, LispError *e, LispContext ctx)
+{
+  const char *char_to_paste = editorGetClipboard();
+  appDebug("editor-paste, %s\n", char_to_paste);
+  bufferInsertBytes(char_to_paste, (int) strlen(char_to_paste));
+  return lisp_null();
+}
+
+Lisp editorCutEndLine(Lisp args, LispError *e, LispContext ctx)
+{
+  EditorPane *active = splitScreenGetActivePane();
+  struct buffer_t *buffer = bufferFindById(active->buffer_id);
+  int bytes_to_delete = buffer->row[buffer->y].size - buffer->x;
+  editorSetClipboard(&buffer->row[buffer->y].chars[buffer->x], bytes_to_delete);
+  buffer->x = buffer->row[buffer->y].size;
+  while (bytes_to_delete--)
+  {
+    bufferDelBytes();
+  }
+  return lisp_null();
+}
+
+Lisp editorMoveBegBuffer(Lisp args, LispError *e, LispContext ctx)
+{
+  EditorPane *active = splitScreenGetActivePane();
+  struct buffer_t *buffer = bufferFindById(active->buffer_id);
+  buffer->x = 0;
+  buffer->y = 0;
+  return lisp_null();
+}
+
+Lisp editorMoveEndBuffer(Lisp args, LispError *e, LispContext ctx)
+{
+  EditorPane *active = splitScreenGetActivePane();
+  struct buffer_t *buffer = bufferFindById(active->buffer_id);
+  buffer->x = buffer->row[buffer->numrows-1].size;
+  buffer->y = buffer->numrows-1;
+  return lisp_null();
+}
+
+Lisp editorAutoComplete(Lisp args, LispError *e, LispContext ctx)
+{
+  createContextBuffer(E.cursor_x - 2, E.cursor_y + 1, "hello");
+  return lisp_null();
+}

src/editor_op.c

@@ -31,90 +31,100 @@ void editorSetStatusMessage(const char* fmt, ...)
     E.status_msg_time = time(NULL);
 }
 
-
-void bufferInsertBytes(char* src, int n)
-{
-    appDebug("bufferInsertBytes \r\n");
-    EditorPane* active = splitScreenGetActivePane();
-    struct buffer_t* buf = bufferFindById(active->buffer_id);
-    if (buf->y == buf->numrows)
-    {
-        bufferInsertRow(buf, buf->numrows, "", 0);
-    }
-    bufferRowInsertBytes(buf, &buf->row[buf->y], buf->x, src, n);
-    buf->x += n;
-}
-
-void bufferDelBytes(void)
-{
-    EditorPane* active = splitScreenGetActivePane();
-    struct buffer_t* buf = bufferFindById(active->buffer_id);
-
-    /* Nothing to delete */
-    if (buf->numrows == 0) return;
-    if (buf->x == 0 && buf->y == 0) return;
-
-    /* Use row_offset, not col_offset, for row indexing */
-    row_t* r = &buf->row[buf->y];
-
-    if (buf->x > 0)
-    {
-        int byte_end = editorRowCxToByte(r, buf->x);
-        int byte_start = editorRowCxToByte(r, buf->x - 1);
-        int char_width = byte_end - byte_start; /* byte width of the character */
-
-        bufferRowDelByte(buf, r, byte_start, char_width);
-        E.dirty = 1;
-    }
-    else
-    {
-        /* Merge current row into the previous one */
-        row_t* prev = &buf->row[buf->y - 1];  // FIX: was buf->y (same as r)
-        int prev_char_count = editorRowCharCount(prev, prev->size);
-
-        bufferRowInsertBytes(buf, prev, prev->size, r->chars, r->size);
-        free(r->chars);
-        r->chars = NULL;
-
-        memmove(&buf->row[buf->y],
-                &buf->row[buf->y + 1],
-                sizeof(row_t) * (buf->numrows - buf->y - 1));
-        buf->numrows--;
-
-        active->cursor_x = prev_char_count;
-        buf->x = prev_char_count;
-        active->cursor_y--;
-        buf->y--;
-        E.dirty = 1;
-    }
-}
-
-void bufferInsertNewLine(void) {
-    appDebug("Inserting new line\n");
+/**
+ * @brief Moves the cursor based on arrow key input
+ * @details Updates cursor position (E.cursor_x, E.cursor_y) based on the given
+ * key direction. Handles line wrapping and boundary conditions. Prevents cursor
+ * from exceeding line lengths.
+ * @param key The arrow key code (ARROW_UP, ARROW_DOWN, ARROW_LEFT, ARROW_RIGHT)
+ * @return 1 if cursor movement was valid, 0 if cursor was constrained to line boundary
+ * @note Updates global editor state E
+ */
+int editorMoveCursor(int key) {
     EditorPane *active = splitScreenGetActivePane();
     struct buffer_t *buf = bufferFindById(active->buffer_id);
-
-    appDebug("buf x %d\n", buf->x);
-
-    if (buf->y >= buf->numrows) {
-        /* Cursor is past the last row: just append a blank line */
-        bufferInsertRow(buf, buf->numrows, "", 0);
-    } else {
     row_t *row = &buf->row[buf->y];
-
-        /* Insert the tail (from cursor to end) as a new row below */
-        bufferInsertRow(buf, buf->y + 1, &row->chars[buf->x], row->size - buf->x);
-
-        /* Re-fetch: realloc inside bufferInsertRow may have moved the array */
-        row = &buf->row[buf->y];
-
-        /* Truncate the current row at the cursor */
-        row->size           = buf->x;
-        row->chars[row->size] = '\0';
-        /* Do NOT touch row->cap — the allocation is still valid */
-    }
-
+    switch (key) {
+    case ARROW_RIGHT:
+        if (row && buf->x < row->size) {
+            int len = utf8Seqlen(row->chars[buf->x]);
+            buf->x += len;
+        } else if (row && buf->y < buf->numrows) {
             buf->y++;
             buf->x = 0;
-    appDebug("Insert new line done\n");
+        }
+        break;
+    case ARROW_DOWN:
+        if (buf->y < buf->numrows) {
+
+            buf->y++;
+        }
+        break;
+    case ARROW_UP:
+        if (buf->y != 0) {
+            --buf->y;
+        }
+        break;
+    case ARROW_LEFT:
+        if (buf->x != 0) {
+            --buf->x;
+        } else if (buf->y > 0) {
+            --buf->y;
+            buf->x = buf->row[buf->y].size;
+        }
+        break;
+    }
+    return 1;
+}
+
+char *editorGetClipboard(void) {
+    FILE *pipe = popen(CLIPBOARD_PASTE_CMD, "r");
+    if (!pipe) return NULL;
+
+    size_t cap = 4096;
+    size_t len = 0;
+    char *buf = malloc(cap);
+
+    int c;
+    while ((c = fgetc(pipe)) != EOF) {
+        if (len + 1 >= cap) {
+            cap *= 2;
+            buf = realloc(buf, cap);
+        }
+        buf[len++] = (char)c;
+    }
+    buf[len] = '\0';
+    pclose(pipe);
+    return buf; // caller must free
+}
+
+void editorSetClipboard(const char *text, int len) {
+    FILE *pipe = popen(CLIPBOARD_COPY_CMD, "w");
+    if (!pipe) return;
+    fwrite(text, 1, len, pipe);
+    pclose(pipe);
+}
+
+int editorRowCxToByte(const row_t *row, int cursor_x) {
+    int i = 0, col = 0;
+    while (col < cursor_x && i < row->size) {
+        int sl = utf8Seqlen((unsigned char)row->chars[i]);
+        if (sl < 1)
+            sl = 1;
+        col++;
+        i += sl;
+    }
+    return i;
+}
+
+int editorRowCharCount(row_t *row, int x) {
+    int n = 0, i = 0;
+    while (i < x && i < row->size) {
+        int sl = utf8Seqlen((unsigned char)row->chars[i]);
+        if (sl < 1)
+            sl = 1;
+        n++;
+        i += sl;
+    }
+    return n;
 }

src/file_io.c

@@ -12,6 +12,7 @@
 #include "../include/buffer.h"
 #include "../include/data.h"
 #include "../include/split_screen.h"
+#include "../include/row_op.h"
 #include <fcntl.h>
 #include <stdio.h>
 #include <stdlib.h>

src/init.c

@@ -45,6 +45,10 @@ void initBuiltins() {
   registerBuiltin("editor-split-screen-vertical", l_editorSplitScreenVertical);
   registerBuiltin("editor-switch-next-pane", editorSwitchNextPane);
   registerBuiltin("editor-unify-panes", editorUnifiedPanes);
+  registerBuiltin("editor-paste", editorPaste);
+  registerBuiltin("editor-cut-end-line", editorCutEndLine);
+  registerBuiltin("editor-move-cursor-beg-buffer", editorMoveBegBuffer);
+  registerBuiltin("editor-move-cursor-end-buffer", editorMoveEndBuffer);
 }
 
 void initConfig() {
@@ -64,7 +68,7 @@ void initConfig() {
   lisp_eval(E.ctx_data, &E.ctx_error, E.ctx);
 }
 
-void init_theme() {
+void initTheme() {
   E.constantes.THEME = (char *)lisp_string(
       lisp_eval(lisp_read("THEME", &E.ctx_error, E.ctx), &E.ctx_error, E.ctx));
   if (strcmp(E.constantes.THEME, "dark") == 0) {
@@ -130,7 +134,7 @@ void initEditor() {
 
   initConfig();
 
-  init_theme();
+  initTheme();
 
   // To modify
 

src/input.c

@@ -5,7 +5,6 @@
 #include "include/data.h"
 #include "include/buffer.h"
 #include "include/data.h"
-#include "include/row_op.h"
 #include "include/split_screen.h"
 #include <ctype.h>
 #include <sys/stat.h>
@@ -41,7 +40,7 @@ extern struct editorConfig E;
  * @note Caller is responsible for freeing the returned string
  * @note Uses static buffer internally; may return stale pointers across calls
  */
-const char *file_completion(const char *path) {
+const char *fileCompletion(const char *path) {
   DIR *dir;
   struct dirent *entry;
   char directory[256];
@@ -153,7 +152,7 @@ char *editorPrompt(char *prompt, char *placeHolder, char bPathMode) {
       }
       memset(buf, 0, 256);
       buf_len = 0;
-      char * buf_complete = (char *) file_completion(path);
+      char * buf_complete = (char *) fileCompletion(path);
       strcpy(buf, buf_complete);
       free(buf_complete);
       buf_len = strlen(buf);
@@ -170,65 +169,7 @@ char *editorPrompt(char *prompt, char *placeHolder, char bPathMode) {
   }
 }
 
-/**
- * @brief Moves the cursor based on arrow key input
- * @details Updates cursor position (E.cursor_x, E.cursor_y) based on the given
- * key direction. Handles line wrapping and boundary conditions. Prevents cursor
- * from exceeding line lengths.
- * @param key The arrow key code (ARROW_UP, ARROW_DOWN, ARROW_LEFT, ARROW_RIGHT)
- * @return 1 if cursor movement was valid, 0 if cursor was constrained to line boundary
- * @note Updates global editor state E
- */
-int editorMoveCursor(int key) {
-  EditorPane *active = splitScreenGetActivePane();
-  struct buffer_t *buf = bufferFindById(active->buffer_id);
-  row_t *row = &buf->row[buf->y];
-  switch (key) {
-  case ARROW_RIGHT:
-    if (row && buf->x < row->size) {
-        int len = utf8Seqlen(row->chars[buf->x]);
-        buf->x += len;
-    } else if (row && buf->y < buf->numrows) {
-      buf->y++;
-      buf->x = 0;
-    }
-    break;
-  case ARROW_DOWN:
-    if (buf->y < buf->numrows) {
 
-      buf->y++;
-    }
-    break;
-  case ARROW_UP:
-    if (buf->y != 0) {
-      --buf->y;
-    }
-    break;
-  case ARROW_LEFT:
-    if (buf->x != 0) {
-      --buf->x;
-    } else if (buf->y > 0) {
-      --buf->y;
-      buf->x = buf->row[buf->y].size;
-    }
-    break;
-  }
-/*
-  fprintf(stderr, "acx: %d acy %d aox %d aoy %d bx %d by %d ah %d aw %d\n",
-      active->cursor_x,
-      active->cursor_y,
-      active->x_offset,
-      active->y_offset,
-      buf->x,
-      buf->y,
-      active->height,
-      active->width
-  );
-  */
-
-
-  return 1;
-}
 
 /**
  * @brief Executes the command bound to a key sequence
@@ -272,7 +213,7 @@ void editorProcessKeypress() {
   int c = editorReadKey();
   char key_sequence[8];
 
-  if (executeKeyBind(key_to_string(c))) {
+  if (executeKeyBind(keyToString(c))) {
     return;
   }
   int seq_len = utf8Encode(c, key_sequence);

src/output.c

@@ -8,6 +8,7 @@
 #include "../include/output.h"
 #include "../include/append_buffer.h"
 #include "../include/buffer.h"
+#include "../include/editor_op.h"
 #include "../include/data.h"
 #include "../include/define.h"
 #include "../include/row_op.h"
@@ -29,14 +30,9 @@ static void editorDrawPane(struct abuf* ab, EditorPane* pane)
     int file_row;
     char pos_buf[32];
     int pos_len;
-    int chars_printed;
-    int start_offset;
     int byte_len_to_print;
     int bytes_to_print;
     char* highlighted;
-    char welcome[80];
-    int welcome_len;
-    int padding;
 
     if (pane == NULL || pane->buffer_id < 0)
         return;
@@ -56,9 +52,8 @@ static void editorDrawPane(struct abuf* ab, EditorPane* pane)
         abAppend(ab, pos_buf, pos_len);
 
         // Apply background color (6 bytes for RGB format)
-        abAppend(ab, E.theme.BACKGROUND_COLOR, strlen(E.theme.BACKGROUND_COLOR));
+        abAppend(ab, E.theme.BACKGROUND_COLOR, (int) strlen(E.theme.BACKGROUND_COLOR));
 
-        chars_printed = 0;
 
         // pane line is out of buffer
         if (file_row >= buf->numrows)
@@ -75,7 +70,7 @@ static void editorDrawPane(struct abuf* ab, EditorPane* pane)
         }
         else
         {
-            start_offset = pane->x_offset;
+
 
             if (buf->filename[strlen(buf->filename) - 1] == 'c' || buf->filename[strlen(buf->filename) - 1] == 'h')
             {
@@ -135,7 +130,7 @@ static void editorDrawAllPanes(struct abuf* ab)
                 {
                     char pos_buf[32];
                     snprintf(pos_buf, sizeof(pos_buf), "\x1b[%d;%dH", y + 1, divider_col);
-                    abAppend(ab, pos_buf, strlen(pos_buf));
+                    abAppend(ab, pos_buf, (int) strlen(pos_buf));
                     abAppend(ab, "\x1b[1m|\x1b[0m", 9); // Bold pipe divider
                 }
             }
@@ -145,7 +140,7 @@ static void editorDrawAllPanes(struct abuf* ab)
                 int divider_row = layout->panes[0].height;
                 char pos_buf[32];
                 snprintf(pos_buf, sizeof(pos_buf), "\x1b[%d;%dH", divider_row + 1, 1);
-                abAppend(ab, pos_buf, strlen(pos_buf));
+                abAppend(ab, pos_buf, (int) strlen(pos_buf));
                 for (int x = 0; x < E.screencols; x++)
                 {
                     abAppend(ab, "\x1b[1m-\x1b[0m", 9); // Bold dash divider
@@ -231,15 +226,13 @@ void editorScroll()
 
 char * basename(char *path)
 {
-    int len = strlen(path);
-    int flag=0;
+    int len = (int) strlen(path);
 
 
     for(int i=len-1; i>0; i--)
     {
         if(path[i]=='/' )
         {
-            flag=1;
             path = path+i+1;
             break;
         }
@@ -323,7 +316,7 @@ void editorDrawStatusBar(struct abuf* ab)
  */
 void editorDrawMessageBar(struct abuf* ab)
 {
-    int msg_len = strlen(E.status_msg);
+    int msg_len = (int) strlen(E.status_msg);
     abAppend(ab, ERASE_END_LINE, 3);
     if (msg_len > E.screencols)
     {
@@ -335,6 +328,7 @@ void editorDrawMessageBar(struct abuf* ab)
     }
 }
 
+
 /**
  * @brief Performs complete screen refresh and buffer synchronization
  * @details Clears screen, redraws all visible content (rows, status bar,
@@ -354,7 +348,7 @@ void editorRefreshScreen()
     abAppend(&ab, HIDE_CURSOR, 6);
     abAppend(&ab, CURSOR_TOP_LEFT, 3);
     abAppend(&ab, E.theme.BACKGROUND_COLOR,
-             strlen(E.theme.BACKGROUND_COLOR)); // RGB background is 12 bytes
+             (int) strlen(E.theme.BACKGROUND_COLOR)); // RGB background is 12 bytes
 
     // Draw all panes
     editorScroll();
@@ -363,16 +357,16 @@ void editorRefreshScreen()
     // Draw status bar and message bar
     editorDrawStatusBar(&ab);
     editorDrawMessageBar(&ab);
+    // editorDrawContextBuffer(&ab);
 
     // Position cursor in active pane
     EditorPane* active = splitScreenGetActivePane();
-    struct buffer_t* buffer = bufferGetCurrent();
     if (active != NULL)
     {
         snprintf(buf, sizeof(buf), "\x1b[%d;%dH",
                  active->cursor_y + active->origin_y + 1,
                  active->cursor_x + active->origin_x + 1);
-        abAppend(&ab, buf, strlen(buf));
+        abAppend(&ab, buf, (int) strlen(buf));
     }
 
     abAppend(&ab, SHOW_CURSOR, 6);

src/row_op.c

@@ -1,100 +1,12 @@
 #include "../include/row_op.h"
 #include "../include/data.h"
-#include "../include/define.h"
+#include "../include/utf8.h"
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <time.h>
 
-#include "include/terminal.h"
-#include "include/utf8.h"
-
 extern struct editorConfig E;
 
-void bufferInsertRow(struct buffer_t *buffer, int at, char *s, size_t len) {
-  if (at < 0 || at > buffer->numrows)
-    return;
 
-  row_t *tmp = realloc(buffer->row, sizeof(row_t) * (buffer->numrows + 1));
-  if (!tmp)
-    return;
-  buffer->row = tmp;
 
-  /* Shift existing rows to make room at 'at' — no at++ */
-  if (at < buffer->numrows) {
-    memmove(&buffer->row[at + 1], &buffer->row[at],
-            sizeof(row_t) * (buffer->numrows - at)); /* not -at+1 */
-  }
-
-  buffer->row[at].size  = len;
-  buffer->row[at].cap   = len + 1;
-  buffer->row[at].chars = malloc(len + 1);
-  if (!buffer->row[at].chars)
-    return;
-  memcpy(buffer->row[at].chars, s, len);
-  buffer->row[at].chars[len] = '\0'; /* always NUL-terminate */
-
-  buffer->numrows++;
-  buffer->dirty++;
-}
-
-void bufferFreeRow(row_t *row) { free(row->chars); }
-
-int editorRowCxToByte(const row_t *row, int cursor_x) {
-  int i = 0, col = 0;
-  while (col < cursor_x && i < row->size) {
-    int sl = utf8Seqlen((unsigned char)row->chars[i]);
-    if (sl < 1)
-      sl = 1;
-    col++;
-    i += sl;
-  }
-  return i;
-}
-
-/**
- * \fn editorRowInsertChar(erow *row, int at, int c)
- * \param at Index of where we want to insert the char */
-
-void bufferRowInsertBytes(struct buffer_t *buffer, row_t *row, int at,
-                          char *src, int n) {
-  if (buffer->state == READ_ONLY)
-    return;
-  if (row->size + n + 1 > row->cap) {
-    row->cap = (row->size + n + 1) * 2;
-    row->chars = realloc(row->chars, row->cap);
-  }
-  memmove(row->chars + at + n, row->chars + at, row->size - at);
-  memcpy(row->chars + at, src, n);
-  row->size += n;
-  row->chars = realloc(row->chars, row->size + 2);
-  ++buffer->dirty;
-}
-
-/**
- * \fn bufferRowDelChar(struct bufferConfig *E, frow *frow, int at)
- * \brief Delete the a char at the chosen position on the given row
- * \param at Index of the char to delete
- * \param row Row on operation is made */
-void bufferRowDelByte(struct buffer_t *buffer, row_t *row, int at, int n) {
-    if (buffer->state == READ_ONLY)
-        return;
-    if (at < 0 || at >= row->size)
-        return;
-  memmove(row->chars + at, row->chars + at + n, row->size - at - n);
-  row->size -= n;
-  row->chars[row->size] = '\0';
-  buffer->x -= n;
-  ++buffer->dirty;
-}
-int editorRowCharCount(row_t *row, int x) {
-  int n = 0, i = 0;
-  while (i < x && i < row->size) {
-    int sl = utf8Seqlen((unsigned char)row->chars[i]);
-    if (sl < 1)
-      sl = 1;
-    n++;
-    i += sl;
-  }
-  return n;
-}

src/terminal.c

@@ -46,7 +46,7 @@ void enableRawMode() {
 
 #include <ctype.h> /* isprint */
 
-char *key_to_string(int key) {
+char *keyToString(int key) {
   static char key_str[32];
 
   if (key == '\r') {
@@ -111,7 +111,7 @@ int editorReadKey() {
   /* read first byte — may be start of UTF-8 or escape */
   while (read(STDIN_FILENO, &c, 1) != 1)
     ;
-  appDebug("f : %X\r\n", c);
+  appDebug("f : %hhu %ld\r\n", c, 0x200);
 
   if (c == '\x1b') {
     char seq[6];
@@ -120,6 +120,8 @@ int editorReadKey() {
       return '\x1b';
     if (read(STDIN_FILENO, &seq[1], 1) != 1)
       return '\x1b';
+    appDebug("f2 : %s\r\n", seq);
+
     if (seq[0] == '[') {
       if (seq[1] >= '0' && seq[1] <= '9') {
         if (read(STDIN_FILENO, &seq[2], 1) != 1)

src/utf8.c

@@ -3,7 +3,6 @@
  */
 
 #include "../include/utf8.h"
-#include "../include/data.h"
 
 #include <stdint.h>
 #include <unistd.h>