ptrdiff_t base_level_stop;
/* Maximum string or buffer position + 1. ZV when iterating over
- current_buffer. */
+ current_buffer. When iterating over a string in display_string,
+ this can be smaller or greater than the number of string
+ characters, depending on the values of PRECISION and FIELD_WIDTH
+ with which display_string was called. */
ptrdiff_t end_charpos;
/* C string to iterate over. Non-null means get characters from