better naming of term API

src/main.c

@@ -77,8 +77,8 @@ int main(int isappli, int optnum) {
     int off_state = 0;
     uint16_t backlight_save;
 
-    term_append(LOREM_IPSUM);
-    term_append("-----------------------------------------------------------------");
+    term_print(LOREM_IPSUM);
+    term_print("-----------------------------------------------------------------");
     term_printf("isappli=%d optnum=%d\n", isappli, optnum);
 
     set_statusbar(tick_ctr, shift_state, alpha_state, get_battery_voltage());

src/term.c

@@ -117,7 +117,7 @@ void term_scroll_down(void) {
     }
 }
 
-void term_append(const char *str) {
+int term_print(const char *str) {
     static int row = 1;
     static int col = 0;
 
@@ -138,6 +138,8 @@ void term_append(const char *str) {
 
         i += tgrid_sets(&row, &col, C_WHITE, C_BLACK, str + i);
     }
+
+    return i;
 }
 
 int term_printf(const char *restrict format, ...) {
@@ -146,7 +148,7 @@ int term_printf(const char *restrict format, ...) {
 
     char buf[1024];
     const int n = vsprintf(buf, format, argp);
-    term_append(buf);
+    term_print(buf);
 
     va_end(argp);
     return n;

src/term.h

@@ -9,7 +9,8 @@ void tgrid_display(void);
 
 int term_writeat(int row, int col, int fg, int bg, const char *s);
 void term_scroll_down(void);
-void term_append(const char *str);
+
+int term_print(const char *str);
 int term_printf(const char *restrict format, ...);
 
 #endif // #ifndef UNS_TERM_H