changed heredoc to exchange data via a stdin like interface with a read function fix #39

src/shellmatta_utils.c

@@ -364,6 +364,8 @@ void utils_terminateInput(shellmatta_instance_t *inst)
     inst->lastNewlineIdx    = 0u;
     inst->hereLength        = 0u;
     inst->cursor            = 0u;
+    inst->stdinIdx          = 0u;
+    inst->stdinLength       = 0u;
     inst->write("\r\n", 2u);
     inst->write(inst->prompt, strlen(inst->prompt));
 }