/*
* Add a token in the line structure given as argument.
- * 'linestart' parameter is the beginning of the line buffer.
- * 'linecur'
+ *
+ * 'linestart': pointer to the line buffer.
+ * 'linecur': current pointer in the line string (same string than linestart).
+ *
* Return a pointer to the first token copied from buf in a allocated
* buffer which is correctly nil-terminated. Also fill *eatlen
* argument the length of eaten bytes. The user should free the token