Provide a terminal_vt100_read_str to avoid direct writing to underlying terminal_parser

src/hl_vt100.c

@@ -99,7 +99,7 @@ static int main_loop(struct vt100_headless *this)
 #ifndef NDEBUG
             strdump(buffer);
 #endif
-            lw_terminal_read_str(this->term->lw_terminal, buffer);
+            lw_terminal_vt100_read_str(this->term, buffer);
             this->changed(this);
         }
     }

src/lw_terminal_vt100.c

@@ -963,6 +963,11 @@ free_this:
     return NULL;
 }
 
+void lw_terminal_vt100_read_str(struct lw_terminal_vt100 *this, char *buffer)
+{
+    lw_terminal_read_str(this->lw_terminal, buffer);
+}
+
 void lw_terminal_this_destroy(struct lw_terminal_vt100 *this)
 {
     lw_terminal_destroy(this->lw_terminal);

src/lw_terminal_vt100.h

@@ -68,5 +68,6 @@ struct lw_terminal_vt100 *vt100_init(void (*unimplemented)(struct lw_terminal* t
 char vt100_get(struct lw_terminal_vt100 *vt100, unsigned int x, unsigned int y);
 const char **vt100_getlines(struct lw_terminal_vt100 *vt100);
 void lw_terminal_this_destroy(struct lw_terminal_vt100 *this);
+void lw_terminal_vt100_read_str(struct lw_terminal_vt100 *this, char *buffer);
 
 #endif