Moved to \033 as the most compatible esc representation

nne.c

@@ -36,24 +36,24 @@
 #endif
 
 /* terminal control macros (constants) */
-#define ERESET "\x1b[0m"      /* reset the styling */
+#define ERESET "\033[0m"      /* reset the styling */
-#define CLS "\x1b[2J"         /* clear the entire screen */
+#define CLS "\033[2J"         /* clear the entire screen */
-#define LINECLR "\x1b[2K"     /* clear the current line */
+#define LINECLR "\033[2K"     /* clear the current line */
-#define CURRESET "\x1b[0;0H"  /* reset the visual cursor */
+#define CURRESET "\033[0;0H"  /* reset the visual cursor */
 #ifdef NNE_NO_ALTBUF          /* can be defined for legacy terminals */
 #define CURSHOW ""
 #define CURHIDE ""
 #define ALTBUFON ""
 #define ALTBUFOFF CLS         /* if no altbuf, then clear the screen */
 #else
-#define CURSHOW "\x1b[?25h"   /* show the cursor */
+#define CURSHOW "\033[?25h"   /* show the cursor */
-#define CURHIDE "\x1b[?25l"   /* hide the cursor */
+#define CURHIDE "\033[?25l"   /* hide the cursor */
-#define ALTBUFON "\x1b[?47h\x1b%G"  /* turn on alternate screen + UTF-8 */
+#define ALTBUFON "\033[?47h\033%G"  /* turn on alternate screen + UTF-8 */
-#define ALTBUFOFF "\x1b[?47l" /* turn off alternate screen */
+#define ALTBUFOFF "\033[?47l" /* turn off alternate screen */
 #endif
 
 /* terminal control macros (sprintf templates) */
-#define CURSET "\x1b[%03u;%03uH"  /* set the cursor position (line;col) */
+#define CURSET "\033[%03u;%03uH"  /* set the cursor position (line;col) */
 
 /* some enums */
 enum nne_modes { NNE_NORMAL = 1, NNE_CMD }; /* operation modes */
@@ -97,46 +97,46 @@ static int  nne_line_offset = 0; /* offset from the start to the screen */
 
 /* help screen */
 
-static char* nne_help_screen = "\x1b[s\
+static char* nne_help_screen = "\033[s\
 ---------------------------- nne shortcut help ---------------------------\
-\x1b[1B\x1b[74D\
+\033[1B\033[74D\
 |                                                                        |\
-\x1b[1B\x1b[74D\
+\033[1B\033[74D\
 |Save       Esc Esc s, Esc Esc w     Line jump    Esc Esc l [num] Return |\
-\x1b[1B\x1b[74D\
+\033[1B\033[74D\
 |Quit       Esc Esc q                Brace match  Esc Esc 5              |\
-\x1b[1B\x1b[74D\
+\033[1B\033[74D\
 |Tab char   Esc Esc Tab              Find text    Esc Esc / [text] Return|\
-\x1b[1B\x1b[74D\
+\033[1B\033[74D\
 |Delete     Del,  Esc Esc Bksp       Copy line    Esc Esc y              |\
-\x1b[1B\x1b[74D\
+\033[1B\033[74D\
 |Page Up    PgUp, Esc Esc Up         Copy lines   Esc Esc Y [num] Return |\
-\x1b[1B\x1b[74D\
+\033[1B\033[74D\
 |Page Down  PgDn, Esc Esc Down       Cut line     Esc Esc d              |\
-\x1b[1B\x1b[74D\
+\033[1B\033[74D\
 |Home       Home, Esc Esc 0          Cut lines    Esc Esc D [num] Return |\
-\x1b[1B\x1b[74D\
+\033[1B\033[74D\
 |End        End,  Esc Esc 4          Paste        Esc Esc p, Esc Esc v   |\
-\x1b[1B\x1b[74D\
+\033[1B\033[74D\
 |Next word  Esc Esc Right            Discard/undo Esc Esc u              |\
-\x1b[1B\x1b[74D\
+\033[1B\033[74D\
 |Prev word  Esc Esc Left             Run shell    Esc Esc e [cmd] Return |\
-\x1b[1B\x1b[74D\
+\033[1B\033[74D\
 |File start Esc Esc 8                This help    Esc Esc h              |\
-\x1b[1B\x1b[74D\
+\033[1B\033[74D\
 |File end   Esc Esc 9                                                    |\
-\x1b[1B\x1b[74D\
+\033[1B\033[74D\
 |                                                                        |\
-\x1b[1B\x1b[74D\
+\033[1B\033[74D\
 |                      Created by Luxferre in 2023                       |\
-\x1b[1B\x1b[74D\
+\033[1B\033[74D\
 |                      Released into public domain                       |\
-\x1b[1B\x1b[74D\
+\033[1B\033[74D\
 |                                                                        |\
-\x1b[1B\x1b[74D\
+\033[1B\033[74D\
 |                    Press Return to exit this screen                    |\
-\x1b[1B\x1b[74D\
+\033[1B\033[74D\
---------------------------------------------------------------------------\x1b[u";
+--------------------------------------------------------------------------\033[u";
 
 /* elementary routines */ 
 
@@ -432,7 +432,7 @@ uint nne_prompt(char *prompt) {
           nne_cmdbuf[rd-1] = 0; /* zero out the character */
           rd--; /* decrement the read counter */
           /* move cursor back and erase until the end of the line */
-          nnmsg(1, "\x1b[%uD\x1b[0K", c == '\t' ? NNE_TABWIDTH : 1);
+          nnmsg(1, "\033[%uD\033[0K", c == '\t' ? NNE_TABWIDTH : 1);
         }
         break;
       case K_ESC: case K_MODCMD: endinput = 1; rd = 0; break; /* abort */
@@ -539,16 +539,16 @@ void render() { /* main screen rendering function */
 
 /* platform-independent terminal size detection */
 static void nne_termsize() {
-  if(write(1, "\x1b[s\x1b[999C\x1b[999B", 15) != 15) return;
+  if(write(1, "\033[s\033[999C\033[999B", 15) != 15) return;
-  if(write(1, "\x1b[6n", 4) != 4) return;
+  if(write(1, "\033[6n", 4) != 4) return;
   char buf[32], i;
   for(i=0;i<31;i++) {
     if(read(0, &buf[i], 1) != 1) break;
     if(buf[i] == 'R') break;
   }
-  if(write(1, "\x1b[u", 3) != 3) return; /* restore the cursor position */
+  if(write(1, "\033[u", 3) != 3) return; /* restore the cursor position */
   buf[i] = 0;
-  if(buf[0] != '\x1b' || buf[1] != '[') return;
+  if(buf[0] != '\033' || buf[1] != '[') return;
   if(sscanf(&buf[2], "%hu;%hu", &nne_termh, &nne_termw) != 2) return;
   nne_scrsize = (nne_termw * nne_termh) << 2; /* update the byte size */
   nne_scrbuf = realloc(nne_scrbuf, nne_scrsize); /* reallocate accordingly */
@@ -851,7 +851,7 @@ int nne_action(int key) {
 
 int main(int argc, char* argv[]) { /* editor entry point */
   /* use the alternative screen buffer and enable UTF-8 */
-  nnputs(ALTBUFON CLS "\x1b[?7h");
+  nnputs(ALTBUFON CLS "\033[?7h");
   /* prepare screen */
   tcgetattr(0, &tty_opts_backup);
   atexit(&cleanup);