1 files changed, 65 insertions, 0 deletions
diff --git a/source/luametatex/source/tex/texmarks.h b/source/luametatex/source/tex/texmarks.h
new file mode 100644
index 000000000..e787fa9d0
--- /dev/null
+++ b/source/luametatex/source/tex/texmarks.h
@@ -0,0 +1,65 @@
+/*
+    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