/* Index number of coding category of the coding system. */
int category_idx;
- /* How may heading bytes we can skip for decoding. This member is
- set by the function detect_coding. The initial value is -1 which
- means detect_coding has not yet been called. */
+ /* How may heading bytes we can skip for decoding. This is set to
+ -1 in setup_coding_system, and updated by detect_coding. So,
+ when this is equal to the byte length of the text being
+ converted, we can skip the actual conversion process. */
int heading_ascii;
/* The following members are set by encoding/decoding routine. */