utf8 processing without struct

include/append_buffer.h

@@ -5,7 +5,7 @@
 #include <stdlib.h>
 #include <string.h>
 
-void abAppend(struct abuf *ab, const unsigned char *s, int len);
+void abAppend(struct abuf *ab, const char *s, int len);
 
 void abFree(struct abuf *ab);
 

include/builtins.h

@@ -31,8 +31,6 @@ Lisp editorPrintC(Lisp args, LispError *e, LispContext ctx);
 
 Lisp addPackage(Lisp args, LispError *e, LispContext ctx);
 
-Lisp editorDelRow_L(Lisp args, LispError *e, LispContext ctx);
-
 Lisp editorFind_L(Lisp args, LispError *e, LispContext ctx);
 
 Lisp editorReadChar_L(Lisp args, LispError *e, LispContext ctx);

include/data.h

@@ -8,23 +8,17 @@
 #include "lisp.h"
 
 
-typedef struct{
-  unsigned char c[4];
-  char len;
-} utf_8_char_t;
-
 /**
- * \struct erow
+ * \struct row_t
  * \brief Store one editor row
  * \param
  * */
 
-typedef struct erow {
+typedef struct row {
   int size;     /**< Size of the line */
-  int rsize;    /**< Size of the render line */
-  utf_8_char_t *chars;  /**< Characters of the line */
-  utf_8_char_t *render; /**< The actual line we will print */
-} erow;
+  int cap;    /**< Size of the render line */
+  char *chars;  /**< Characters of the line */
+} row_t;
 
 enum editorStatus_e {
   IDLE,
@@ -57,24 +51,9 @@ typedef enum {
     MOD_CTRL = 4
 } KeyModifier;
 
-// Key information structure
-typedef struct {
-    KeyType type;
-    int modifiers;      // Bitmask of KeyModifier
-    union {
-        unsigned int codepoint;  // For KEY_CHAR
-        char ctrl_char;          // For KEY_CTRL (A-Z)
-        char alt_char;           // For KEY_ALT
-        char arrow;              // For KEY_ARROW (U/D/L/R)
-        int function_num;        // For KEY_FUNCTION (1-12)
-        char special;            // For KEY_SPECIAL and KEY_NAVIGATION
-    } data;
-    utf_8_char_t c;  // Raw bytes
-} KeyInfo;
-
 
 struct keyBind_t {
-  KeyInfo *key_sequence;
+  char *key_sequence;
   Lisp command;
 };
 
@@ -90,7 +69,7 @@ struct editorConfig {
   int screenrows;         /**< Terminal height*/
   int screencols;         /**< Terminal width*/
   int numrows;            /**< Number of rows contained */
-  erow *row;              /**< Store all the rows printed */
+  row_t *rows;              /**< Store all the rows printed */
   int dirty;
   char *filename;
   enum editorStatus_e state;
@@ -118,7 +97,7 @@ struct editorConfig {
  * */
 
 struct abuf {
-  unsigned char *b; /**< Text that will be printed */
+  char *b; /**< Text that will be printed */
   int len; /**< Length of the text */
 };
 

include/define.h

@@ -11,7 +11,18 @@
 #define TAB "\x09"
 #define SPACE "\x20"
 
-
+enum editorKey_e {
+    BACKSPACE = 127,
+    ARROW_LEFT = 1000,
+    ARROW_RIGHT,
+    ARROW_UP,
+    ARROW_DOWN,
+    DEL_KEY,
+    BEG_LINE,
+    END_LINE,
+    PAGE_UP,
+    PAGE_DOWN,
+  };
 
 #define ABUF_INIT {NULL, 0}
 

include/editor_op.h

@@ -2,9 +2,7 @@
 #define EDITOR_OP_H_
 
 #include "data.h"
-void editorInsertChar(utf_8_char_t *c);
-
-void editorInsertNewLine(void);
+void editorInsertChar(int c);
 
 void editorDelChar();
 

include/file_io.h

@@ -8,9 +8,6 @@
 #include <stdlib.h>
 #include <sys/types.h>
 
-char *editorRowsToString(int *buffer_len);
-
-
 void editorCloseFile(void);
 
 void editorOpen(char *filename);

include/input.h

@@ -22,11 +22,9 @@
 
 char *editorPrompt(char *prompt, char * PlaceHolder, char bPathMode);
 
-char *key_to_string(int key);
+void editorMoveCursor(int key);
 
-void editorMoveCursor(KeyInfo * key);
-
-int executeKeyBind(KeyInfo *key_sequence);
+int executeKeyBind(char *key_sequence);
 
 /**
  * \fn void editorProcessKeypress()

include/row_op.h

@@ -8,22 +8,16 @@
 #include <time.h>
 #include <unistd.h>
 
-int editorRowCxToRx(erow *row, int cursor_x);
+void editorInsertRow(int at, char *s, int len);
 
-int editorRowRxToCx(erow *row, int rx);
+void editorFreeRow(row_t *row);
 
-void editorUpdateRow(erow *row);
+int editorRowCxToByte(const row_t *row, int cursor_x);
 
-void editorInsertRow(int at, char *s, size_t len);
+int editorRowCharCount(row_t *row);
 
-void editorFreeRow(erow *row);
+void editorRowInsertBytes(row_t *row, int at, const char *src, int len);
 
-void editorDelRow(int at);
-
-void editorRowInsertChar(erow *row, int at, utf_8_char_t c);
-
-void editorRowAppendString(erow *row, char *s, size_t len);
-
-void editorRowDelchar(erow *row, int at);
+void editorRowDelByte(row_t *row, int at, int n);
 
 #endif // ROW_OP_H_

include/terminal.h

@@ -25,12 +25,12 @@ void disableRawMode();
 
 void enableRawMode();
 
-KeyInfo * editorReadKey();
+int editorReadKey();
 
 int getCursorPosition(int *rows, int *cols);
 
-KeyInfo *stringToCodepoint(const char *string);
-
 int getWindowSize(int *rows, int *cols);
 
+char *key_to_string(int key);
+
 #endif

include/utf8.h

@@ -0,0 +1,16 @@
+//
+// Created by Giorgio on 01/05/2026.
+//
+
+#ifndef BELUGA_UTF8_H
+#define BELUGA_UTF8_H
+#include <stdint.h>
+
+uint32_t readUtf8Char(void);
+int utf8Encode(uint32_t cp, char *buf);
+int utf8Seqlen(unsigned char c);
+int codepointWidth(uint32_t codepoint);
+uint32_t utf8Decode(const char** s);
+
+
+#endif //BELUGA_UTF8_H