diff options
Diffstat (limited to 'source/luametatex/source/tex/texpackaging.h')
| -rw-r--r-- | source/luametatex/source/tex/texpackaging.h | 36 |
1 files changed, 22 insertions, 14 deletions
diff --git a/source/luametatex/source/tex/texpackaging.h b/source/luametatex/source/tex/texpackaging.h index 5fd4bf9e4..0e3c0a471 100644 --- a/source/luametatex/source/tex/texpackaging.h +++ b/source/luametatex/source/tex/texpackaging.h @@ -179,29 +179,37 @@ extern void tex_run_vcenter (void); |box_code|, |copy_code|, |last_box_code|, |vsplit_code|, |vtop_code|, |vtop_code + vmode|, and |vtop_code + hmode|, where the latter two are used denote |\vbox| and |\hbox|, respectively. + Originally the shift was encoded in the box context in case of a move. In fact even the local + and global register assignments were in that property but this is no longer the case. This + actually makes implementing a |\boxspecdef| cleaner (a discarded experiment). The intermediate + cleasned up flags can be found in the history. + */ # define biggest_reg 65535 /*tex This could be in |textypes.h|. */ typedef enum box_flags { - box_flag = 010000000000, /*tex context code for |\setbox0| (< maxdimen) */ - global_box_flag = 010000000000 + biggest_reg, /*tex context code for |\global\setbox0| */ - max_global_box_flag = 010000000000 + 2 * biggest_reg, - left_box_flag = 010000000000 + 2 * biggest_reg + 1, /*tex context code for |\localleftbox| (not used) */ - right_box_flag = 010000000000 + 2 * biggest_reg + 2, /*tex context code for |\localrightbox| (not used) */ - middle_box_flag = 010000000000 + 2 * biggest_reg + 3, /*tex context code for |\localrightbox| (not used) */ - shipout_flag = 010000000000 + 2 * biggest_reg + 4, /*tex context code for |\shipout| */ - lua_scan_flag = 010000000000 + 2 * biggest_reg + 5, /*tex context code for |scan_list| */ - a_leaders_flag = 010000000000 + 2 * biggest_reg + 6, /*tex context code for |\leaders| */ - c_leaders_flag = 010000000000 + 2 * biggest_reg + 7, /*tex context code for |\cleaders| */ - x_leaders_flag = 010000000000 + 2 * biggest_reg + 8, /*tex context code for |\xleaders| */ - g_leaders_flag = 010000000000 + 2 * biggest_reg + 9, /*tex context code for |\gleaders| */ - u_leaders_flag = 010000000000 + 2 * biggest_reg + 10, /*tex context code for |\uleaders| */ + direct_box_flag = 0x00, + /* moved_box_flag = 0x01, */ + /* vcenter_box_flag = 0x02, */ + box_flag = 0x02, /*tex context code for |\setbox0| */ + global_box_flag = 0x03, /*tex context code for |\global\setbox0| */ + left_box_flag = 0x04, /*tex context code for |\localleftbox| */ + right_box_flag = 0x05, /*tex context code for |\localrightbox| */ + middle_box_flag = 0x06, /*tex context code for |\localrightbox| */ + shipout_flag = 0x07, /*tex context code for |\shipout| */ + lua_scan_flag = 0x08, /*tex context code for |scan_list| */ + a_leaders_flag = 0x09, /*tex context code for |\leaders| */ + c_leaders_flag = 0x0A, /*tex context code for |\cleaders| */ + x_leaders_flag = 0x0B, /*tex context code for |\xleaders| */ + g_leaders_flag = 0x0C, /*tex context code for |\gleaders| */ + u_leaders_flag = 0x0D, /*tex context code for |\uleaders| */ + } box_flags; # define box_leaders_flag(f) (f >= a_leaders_flag && f <= u_leaders_flag) -extern void tex_begin_box (int boxcontext, scaled shift); +extern void tex_begin_box (int boxcontext, scaled shift, halfword slot); extern int tex_ignore_math_skip (halfword p); # endif |