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/*
See license.txt in the root of this project.
*/
# ifndef LMT_MARKS_H
# define LMT_MARKS_H
typedef enum get_mark_codes {
current_marks_code,
top_marks_code,
first_marks_code,
bot_marks_code,
split_first_marks_code,
split_bot_marks_code,
/* these map to zero */
top_mark_code, /*tex the mark in effect at the previous page break */
first_mark_code, /*tex the first mark between |top_mark| and |bot_mark| */
bot_mark_code, /*tex the mark in effect at the current page break */
split_first_mark_code, /*tex the first mark found by |\vsplit| */
split_bot_mark_code, /*tex the last mark found by |\vsplit| */
} get_mark_codes;
# define first_valid_mark_code top_marks_code
# define last_unique_mark_code split_bot_marks_code
# define last_get_mark_code split_bot_mark_code
typedef enum set_mark_codes {
set_mark_code,
set_marks_code,
clear_marks_code,
flush_marks_code,
} set_mark_codes;
# define last_set_mark_code flush_marks_code
typedef halfword mark_record[split_bot_marks_code+1];
typedef struct mark_state_info {
mark_record *data;
int min_used;
int max_used;
memory_data mark_data;
} mark_state_info;
extern mark_state_info lmt_mark_state;
extern void tex_initialize_marks (void);
extern int tex_valid_mark (halfword m);
extern void tex_reset_mark (halfword m);
extern void tex_wipe_mark (halfword m);
extern void tex_delete_mark (halfword m, int what);
extern halfword tex_get_some_mark (halfword chr, halfword val);
extern halfword tex_new_mark (quarterword subtype, halfword cls, halfword ptr);
extern void tex_update_top_marks (void);
extern void tex_update_first_and_bot_mark (halfword m);
extern void tex_update_first_marks (void);
extern void tex_update_split_mark (halfword m);
extern void tex_show_marks (void);
extern int tex_has_mark (halfword m);
extern halfword tex_get_mark (halfword m, halfword s);
extern void tex_set_mark (halfword m, halfword s, halfword v);
extern void tex_run_mark (void);
# endif
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