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Diffstat (limited to 'Build/source/texk/web2c/luatexdir/tex/texnodes.h')
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diff --git a/Build/source/texk/web2c/luatexdir/tex/texnodes.h b/Build/source/texk/web2c/luatexdir/tex/texnodes.h new file mode 100644 index 00000000000..556f8fb2c72 --- /dev/null +++ b/Build/source/texk/web2c/luatexdir/tex/texnodes.h @@ -0,0 +1,780 @@ +/* nodes.h + + Copyright 2006-2008 Taco Hoekwater <taco@luatex.org> + + This file is part of LuaTeX. + + LuaTeX is free software; you can redistribute it and/or modify it under + the terms of the GNU General Public License as published by the Free + Software Foundation; either version 2 of the License, or (at your + option) any later version. + + LuaTeX is distributed in the hope that it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public + License for more details. + + You should have received a copy of the GNU General Public License along + with LuaTeX; if not, see <http://www.gnu.org/licenses/>. */ + +/* $Id: texnodes.h 3552 2010-03-26 15:30:08Z taco $ */ + +#include <stdarg.h> + +#ifndef __NODES_H__ +# define __NODES_H__ + +/* these are in texlang.c */ + +# define set_vlink(a,b) vlink(a)=b +# define get_vlink(a) vlink(a) +# define get_character(a) character(a) + +extern halfword insert_discretionary(halfword t, halfword pre, halfword post, + halfword replace); +extern halfword insert_syllable_discretionary(halfword t, lang_variables * lan); +extern halfword insert_word_discretionary(halfword t, lang_variables * lan); +extern halfword insert_complex_discretionary(halfword t, lang_variables * lan, + halfword pre, halfword post, + halfword replace); +extern halfword insert_character(halfword t, int n); +extern void set_disc_field(halfword f, halfword t); + +# define varmemcast(a) (memory_word *)(a) +extern memory_word *volatile varmem; +extern halfword var_mem_max; + +extern halfword get_node(int s); +extern void free_node(halfword p, int s); +extern void init_node_mem(int s); +extern void dump_node_mem(void); +extern void undump_node_mem(void); + + +# define max_halfword 0x3FFFFFFF +# define max_dimen 0x3FFFFFFF +# ifndef null +# define null 0 +# endif +# define null_flag -0x40000000 +# define zero_glue 0 +# define normal 0 + +# define vinfo(a) varmem[(a)].hh.v.LH +# define vlink(a) varmem[(a)].hh.v.RH +# define type(a) varmem[(a)].hh.u.B0 +# define subtype(a) varmem[(a)].hh.u.B1 +# define node_attr(a) vinfo((a)+1) +# define alink(a) vlink((a)+1) + +# define node_size(a) varmem[(a)].hh.v.LH + +# define rlink(a) vlink((a)+1) + /* aka alink() */ +# define llink(a) vinfo((a)+1) + /* overlaps with node_attr() */ + +# define add_glue_ref(a) glue_ref_count(a)++ /* new reference to a glue spec */ + +/* really special head node pointers that only need links */ + +# define temp_node_size 2 + +/* attribute lists */ + +# define UNUSED_ATTRIBUTE -0x7FFFFFFF /* as low as it goes */ + +/* it is convenient to have attribute list nodes and attribute node + * be the same size + */ + +# define attribute_node_size 2 + +# define attr_list_ref(a) vinfo((a)+1) + /* the reference count */ +# define attribute_id(a) vinfo((a)+1) +# define attribute_value(a) vlink((a)+1) + +# define cache_disabled max_halfword +# define add_node_attr_ref(a) { if (a!=null) attr_list_ref((a))++; } + +# define replace_attribute_list(a,b) do { \ + delete_attribute_ref(node_attr(a)); \ + node_attr(a)=b; \ + } while (0) + +extern void update_attribute_cache(void); +extern halfword copy_attribute_list(halfword n); +extern halfword do_set_attribute(halfword p, int i, int val); + + +/* a glue spec */ +# define glue_spec_size 4 +# define stretch(a) vlink((a)+1) +/* width == a+2 */ +# define shrink(a) vinfo((a)+1) +# define stretch_order(a) type((a)+3) +# define shrink_order(a) subtype((a)+3) +# define glue_ref_count(a) vlink((a)+3) + +# define width_offset 2 +# define depth_offset 3 +# define height_offset 4 +# define list_offset 6 + +typedef enum { + cond_math_glue = 98, /* special |subtype| to suppress glue in the next node */ + mu_glue, /* |subtype| for math glue */ + a_leaders, /* |subtype| for aligned leaders */ + c_leaders, /* |subtype| for centered leaders */ + x_leaders, /* |subtype| for expanded leaders */ + g_leaders /* |subtype| for global (page) leaders */ +} glue_subtype_codes; + +/* normal nodes */ + +# define inf_bad 10000 /* infinitely bad value */ +# define inf_penalty inf_bad /*``infinite'' penalty value */ +# define eject_penalty -(inf_penalty) /*``negatively infinite'' penalty value */ + +# define penalty_node_size 3 +# define penalty(a) vlink((a)+2) + +# define glue_node_size 4 +# define glue_ptr(a) vinfo((a)+2) +# define leader_ptr(a) vlink((a)+2) +# define synctex_tag_glue(a) vinfo((a)+3) +# define synctex_line_glue(a) vlink((a)+3) + +/* disc nodes could eventually be smaller, because the indirect + pointers are not really needed (8 instead of 10). + */ + +# define disc_node_size 10 + +typedef enum { + discretionary_disc = 0, + explicit_disc, + automatic_disc, + syllable_disc, + init_disc, /* first of a duo of syllable_discs */ + select_disc, /* second of a duo of syllable_discs */ +} discretionary_types; + +# define pre_break_head(a) ((a)+4) +# define post_break_head(a) ((a)+6) +# define no_break_head(a) ((a)+8) + +# define pre_break(a) vinfo((a)+2) +# define post_break(a) vlink((a)+2) +# define no_break(a) vlink((a)+3) +# define tlink llink + +# define vlink_pre_break(a) vlink(pre_break_head(a)) +# define vlink_post_break(a) vlink(post_break_head(a)) +# define vlink_no_break(a) vlink(no_break_head(a)) + +# define tlink_pre_break(a) tlink(pre_break_head(a)) +# define tlink_post_break(a) tlink(post_break_head(a)) +# define tlink_no_break(a) tlink(no_break_head(a)) + +# define kern_node_size 5 +# define explicit 1 /*|subtype| of kern nodes from \.{\\kern} and \.{\\/} */ +# define acc_kern 2 /*|subtype| of kern nodes from accents */ +# define synctex_tag_kern(a) vinfo((a)+3) +# define synctex_line_kern(a) vlink((a)+3) +# define ex_kern(a) vinfo((a)+4) /* expansion factor (hz) */ + +# define box_node_size 9 + +# define HLIST_SUBTYPE_UNKNOWN 0 +# define HLIST_SUBTYPE_LINE 1 +# define HLIST_SUBTYPE_HBOX 2 + +# define width(a) varmem[(a)+2].cint +# define depth(a) varmem[(a)+3].cint +# define height(a) varmem[(a)+4].cint +# define shift_amount(a) vlink((a)+5) +# define box_dir(a) vinfo((a)+5) +# define list_ptr(a) vlink((a)+6) +# define glue_order(a) subtype((a)+6) +# define glue_sign(a) type((a)+6) +# define glue_set(a) varmem[(a)+7].gr +# define synctex_tag_box(a) vinfo((a)+8) +# define synctex_line_box(a) vlink((a)+8) + + +/* unset nodes */ +# define glue_stretch(a) varmem[(a)+7].cint +# define glue_shrink shift_amount +# define span_count subtype + +# define rule_node_size 7 +# define rule_dir(a) vlink((a)+5) +# define synctex_tag_rule(a) vinfo((a)+6) +# define synctex_line_rule(a) vlink((a)+6) + +# define mark_node_size 3 +# define mark_ptr(a) vlink((a)+2) +# define mark_class(a) vinfo((a)+2) + +# define adjust_node_size 3 +# define adjust_pre subtype +# define adjust_ptr(a) vlink(a+2) + +# define glyph_node_size 6 + +# define character(a) vinfo((a)+2) +# define font(a) vlink((a)+2) +# define lang_data(a) vinfo((a)+3) +# define lig_ptr(a) vlink((a)+3) +# define x_displace(a) vinfo((a)+4) +# define y_displace(a) vlink((a)+4) +# define ex_glyph(a) vinfo((a)+5) /* expansion factor (hz) */ +# define is_char_node(a) (a!=null && type(a)==glyph_node) + +# define char_lang(a) ((const int)(signed short)(((signed int)((unsigned)lang_data(a)&0x7FFF0000)<<1)>>17)) +# define char_lhmin(a) ((const int)(((unsigned)lang_data(a) & 0x0000FF00)>>8)) +# define char_rhmin(a) ((const int)(((unsigned)lang_data(a) & 0x000000FF))) +# define char_uchyph(a) ((const int)(((unsigned)lang_data(a) & 0x80000000)>>31)) + +# define make_lang_data(a,b,c,d) (a>0 ? (1<<31): 0)+ \ + (b<<16)+ (((c>0 && c<256) ? c : 255)<<8)+(((d>0 && d<256) ? d : 255)) + +# define init_lang_data(a) lang_data(a)=256+1 + +# define set_char_lang(a,b) lang_data(a)=make_lang_data(char_uchyph(a),b,char_lhmin(a),char_rhmin(a)) +# define set_char_lhmin(a,b) lang_data(a)=make_lang_data(char_uchyph(a),char_lang(a),b,char_rhmin(a)) +# define set_char_rhmin(a,b) lang_data(a)=make_lang_data(char_uchyph(a),char_lang(a),char_lhmin(a),b) +# define set_char_uchyph(a,b) lang_data(a)=make_lang_data(b,char_lang(a),char_lhmin(a),char_rhmin(a)) + +# define margin_kern_node_size 4 +# define margin_char(a) vlink((a)+3) + +/*@# {|subtype| of marginal kerns}*/ +# define left_side 0 +# define right_side 1 + +# define math_node_size 4 +# define surround(a) vlink((a)+2) +# define before 0 /*|subtype| for math node that introduces a formula */ +# define after 1 /*|subtype| for math node that winds up a formula */ +# define synctex_tag_math(a) vinfo((a)+3) +# define synctex_line_math(a) vlink((a)+3) + +# define ins_node_size 6 +# define float_cost(a) varmem[(a)+2].cint +# define ins_ptr(a) vinfo((a)+5) +# define split_top_ptr(a) vlink((a)+5) + + +# define page_ins_node_size 5 + +/* height = 4 */ + +typedef enum { + hlist_node = 0, + vlist_node = 1, + rule_node, + ins_node, + mark_node, + adjust_node, + /* 6 used to be ligatures */ + disc_node = 7, + whatsit_node, + math_node, + glue_node, /* 10 */ + kern_node, + penalty_node, + unset_node, + style_node, + choice_node, /* 15 */ + simple_noad, + old_op_noad, + old_bin_noad, + old_rel_noad, + old_open_noad, /* 20 */ + old_close_noad, + old_punct_noad, + old_inner_noad, + radical_noad, + fraction_noad, /* 25 */ + old_under_noad, + old_over_noad, + accent_noad, + old_vcenter_noad, + fence_noad, /* 30 */ + math_char_node, /* kernel fields */ + sub_box_node, + sub_mlist_node, + math_text_char_node, + delim_node, /* shield fields */ + margin_kern_node, + glyph_node, + align_record_node, + pseudo_file_node, + pseudo_line_node, /* 40 */ + inserting_node, + split_up_node, + expr_node, + nesting_node, + span_node, /* 45 */ + attribute_node, + glue_spec_node, + attribute_list_node, + action_node, + temp_node, /* 50 */ + align_stack_node, + movement_node, + if_node, + unhyphenated_node, + hyphenated_node, /* 55 */ + delta_node, + passive_node, + shape_node, +} node_types; + +# define MAX_NODE_TYPE 58 + +# define last_known_node temp_node /* used by \lastnodetype */ + +# define movement_node_size 3 +# define expr_node_size 3 +# define if_node_size 2 +# define align_stack_node_size 6 +# define nesting_node_size 2 + +# define span_node_size 3 +# define span_span(a) vlink((a)+1) +# define span_link(a) vinfo((a)+1) + +# define pseudo_file_node_size 2 +# define pseudo_lines(a) vlink((a)+1) + +# define nodetype_has_attributes(t) (((t)<=glyph_node) && ((t)!=unset_node)) + +/* style and choice nodes */ +/* style nodes can be smaller, the information is encoded in |subtype|, + but choice nodes are on-the-spot converted to style nodes */ + +# define style_node_size 4 /* number of words in a style node */ + +# define display_mlist(a) vinfo((a)+2) /* mlist to be used in display style */ +# define text_mlist(a) vlink((a)+2) /* mlist to be used in text style */ +# define script_mlist(a) vinfo((a)+3) /* mlist to be used in script style */ +# define script_script_mlist(a) vlink((a)+3) /* mlist to be used in scriptscript style */ + +/* regular noads */ + +# define noad_size 4 /* number of words in a normal noad */ +# define new_hlist(a) vlink((a)+2) /* the translation of an mlist */ +# define nucleus(a) vinfo((a)+2) /* the |nucleus| field of a noad */ +# define supscr(a) vlink((a)+3) /* the |supscr| field of a noad */ +# define subscr(a) vinfo((a)+3) /* the |subscr| field of a noad */ + +/* accent noads */ +/* like a regular noad, but with two extra fields. */ + +# define accent_noad_size 5 /*number of |mem| words in an accent noad */ +# define accent_chr(a) vinfo((a)+4) /* the |accent_chr| field of an accent noad */ +# define bot_accent_chr(a) vlink((a)+4) /* the |bot_accent_chr| field of an accent noad */ + +/* left and right noads */ + +# define fence_noad_size 3 +# define delimiter(a) vlink((a)+2) /* |delimiter| field in left and right noads */ + +/* subtype of fence noads */ + +# define left_noad_side 1 +# define middle_noad_side 2 +# define right_noad_side 3 + +/* fraction noads */ + +# define fraction_noad_size 5 /*number of |mem| words in a fraction noad */ +# define thickness(a) vlink((a)+2) /* |thickness| field in a fraction noad */ +# define numerator(a) vlink((a)+3) /*|numerator| field in a fraction noad */ +# define denominator(a) vinfo((a)+3) /*|denominator| field in a fraction noad */ +# define left_delimiter(a) vlink((a)+4) /* first delimiter field of a noad */ +# define right_delimiter(a) vinfo((a)+4) /* second delimiter field of a fraction noad */ + +/* radical noads */ +/* this is like a fraction, but it only stores a |left_delimiter| */ +# define radical_noad_size 5 /*number of |mem| words in a radical noad */ + +# define degree(a) vinfo((a)+4) /* the root degree in a radical noad */ + +# define math_kernel_node_size 3 + +/* accessors for the |nucleus|-style node fields */ +# define math_fam(a) vinfo((a)+2) +# define math_character(a) vlink((a)+2) +# define math_list(a) vlink((a)+2) + +/* accessors for the |delimiter|-style two-word subnode fields */ + +# define math_shield_node_size 4 + /* not used yet */ + +# define small_fam(A) vinfo((A)+2) /* |fam| for ``small'' delimiter */ +# define small_char(A) vlink((A)+2) /* |character| for ``small'' delimiter */ +# define large_fam(A) vinfo((A)+3) /* |fam| for ``large'' delimiter */ +# define large_char(A) vlink((A)+3) /* |character| for ``large'' delimiter */ + +typedef enum { + open_node = 0, + write_node, + close_node, + special_node, + language_node, + set_language_code, + local_par_node, + dir_node, + pdf_literal_node, + pdf_obj_code, + pdf_refobj_node, /* 10 */ + pdf_xform_code, + pdf_refxform_node, + pdf_ximage_code, + pdf_refximage_node, + pdf_annot_node, + pdf_start_link_node, + pdf_end_link_node, + pdf_outline_code, + pdf_dest_node, + pdf_thread_node, /* 20 */ + pdf_start_thread_node, + pdf_end_thread_node, + pdf_save_pos_node, + pdf_thread_data_node, + pdf_link_data_node, + pdf_names_code, + pdf_font_attr_code, + pdf_include_chars_code, + pdf_map_file_code, + pdf_map_line_code, /* 30 */ + pdf_trailer_code, + pdf_font_expand_code, + set_random_seed_code, + pdf_glyph_to_unicode_code, + late_lua_node, /* 35 */ + close_lua_node, + save_cat_code_table_code, + init_cat_code_table_code, + pdf_colorstack_node, + pdf_setmatrix_node, /* 40 */ + pdf_save_node, + pdf_restore_node, + cancel_boundary_node, + user_defined_node /* 44 */ +} whatsit_types; + +# define MAX_WHATSIT_TYPE 44 + +# define get_node_size(i,j) (i!=whatsit_node ? node_data[i].size : whatsit_node_data[j].size) +# define get_node_name(i,j) (i!=whatsit_node ? node_data[i].name : whatsit_node_data[j].name) + + +# define pdf_info_code pdf_thread_data_node +# define pdf_catalog_code pdf_link_data_node + +# define GLYPH_CHARACTER (1 << 0) +# define GLYPH_LIGATURE (1 << 1) +# define GLYPH_GHOST (1 << 2) +# define GLYPH_LEFT (1 << 3) +# define GLYPH_RIGHT (1 << 4) + +# define is_character(p) ((subtype(p)) & GLYPH_CHARACTER) +# define is_ligature(p) ((subtype(p)) & GLYPH_LIGATURE ) +# define is_ghost(p) ((subtype(p)) & GLYPH_GHOST ) + +# define is_simple_character(p) (is_character(p) && !is_ligature(p) && !is_ghost(p)) + +# define is_leftboundary(p) (is_ligature(p) && ((subtype(p)) & GLYPH_LEFT )) +# define is_rightboundary(p) (is_ligature(p) && ((subtype(p)) & GLYPH_RIGHT )) +# define is_leftghost(p) (is_ghost(p) && ((subtype(p)) & GLYPH_LEFT )) +# define is_rightghost(p) (is_ghost(p) && ((subtype(p)) & GLYPH_RIGHT )) + +# define set_is_glyph(p) subtype(p) = (quarterword) (subtype(p) & ~GLYPH_CHARACTER) +# define set_is_character(p) subtype(p) = (quarterword) (subtype(p) | GLYPH_CHARACTER) +# define set_is_ligature(p) subtype(p) = (quarterword) (subtype(p) | GLYPH_LIGATURE) +# define set_is_ghost(p) subtype(p) = (quarterword) (subtype(p) |GLYPH_GHOST) + +# define set_to_glyph(p) subtype(p) = (quarterword)(subtype(p) & 0xFF00) +# define set_to_character(p) subtype(p) = (quarterword)((subtype(p) & 0xFF00) | GLYPH_CHARACTER) +# define set_to_ligature(p) subtype(p) = (quarterword)((subtype(p) & 0xFF00) | GLYPH_LIGATURE) +# define set_to_ghost(p) subtype(p) = (quarterword)((subtype(p) & 0xFF00) | GLYPH_GHOST) + +# define set_is_leftboundary(p) { set_to_ligature(p); subtype(p) |= GLYPH_LEFT; } +# define set_is_rightboundary(p) { set_to_ligature(p); subtype(p) |= GLYPH_RIGHT; } +# define set_is_leftghost(p) { set_to_ghost(p); subtype(p) |= GLYPH_LEFT; } +# define set_is_rightghost(p) { set_to_ghost(p); subtype(p) |= GLYPH_RIGHT; } + + +# define special_node_size 3 + +# define dir_node_size 6 +# define dir_dir(a) vinfo((a)+2) +# define dir_level(a) vlink((a)+2) +# define dir_dvi_ptr(a) vinfo((a)+3) +# define dir_dvi_h(a) vlink((a)+3) /* obsolete */ +# define dir_refpos_h(a) vinfo((a)+4) +# define dir_refpos_v(a) vlink((a)+4) +# define dir_cur_h(a) vinfo((a)+5) +# define dir_cur_v(a) vlink((a)+5) + +# define write_node_size 3 +# define close_node_size 3 +# define write_tokens(a) vlink(a+2) +# define write_stream(a) vinfo(a+2) + +# define open_node_size 4 +# define open_name(a) vlink((a)+2) +# define open_area(a) vinfo((a)+3) +# define open_ext(a) vlink((a)+3) + +# define late_lua_node_size 4 +# define late_lua_data(a) vlink((a)+2) +# define late_lua_reg(a) vinfo((a)+2) +# define late_lua_name(a) vlink((a)+3) + +# define local_par_size 6 + +# define local_pen_inter(a) vinfo((a)+2) +# define local_pen_broken(a) vlink((a)+2) +# define local_box_left(a) vlink((a)+3) +# define local_box_left_width(a) vinfo((a)+3) +# define local_box_right(a) vlink((a)+4) +# define local_box_right_width(a) vinfo((a)+4) +# define local_par_dir(a) vinfo((a)+5) + + +/* type of literal data */ +# define lua_refid_literal 1 /* not a |normal| string */ + +/* literal ctm types */ + +typedef enum { + set_origin = 0, + direct_page, + direct_always, + scan_special, +} ctm_transform_modes; + + +# define pdf_refobj_node_size 3 + +# define pdf_obj_objnum(a) vinfo((a) + 2) + +# define pdf_refxform_node_size 6 +# define pdf_refximage_node_size 6 +# define pdf_annot_node_size 8 +# define pdf_dest_node_size 8 +# define pdf_thread_node_size 8 + +/* +when a whatsit node representing annotation is created, words |1..3| are +width, height and depth of this annotation; after shipping out words |1..4| +are rectangle specification of annotation. For whatsit node representing +destination |pdf_ann_left| and |pdf_ann_top| are used for some types of destinations +*/ + +/* coordinates of destinations/threads/annotations (in whatsit node) */ +# define pdf_ann_left(a) varmem[(a) + 2].cint +# define pdf_ann_top(a) varmem[(a) + 3].cint +# define pdf_ann_right(a) varmem[(a) + 4].cint +# define pdf_ann_bottom(a) varmem[(a) + 5].cint + +# define pdf_literal_data(a) vlink((a)+2) +# define pdf_literal_mode(a) type((a)+2) +# define pdf_literal_type(a) subtype((a)+2) + +# define pdf_ximage_index(a) vinfo((a) + 5) /* /Im* number and image index in array */ +# define pdf_ximage_transform(a) vlink((a) + 5) +# define pdf_xform_objnum(a) vinfo((a) + 5) +# define pdf_xform_transform(a) vlink((a) + 5) + +# define pdf_annot_data(a) vinfo((a) + 6) +# define pdf_link_attr(a) vinfo((a) + 6) +# define pdf_link_action(a) vlink((a) + 6) +# define pdf_annot_objnum(a) varmem[(a) + 7].cint +# define pdf_link_objnum(a) varmem[(a) + 7].cint + +# define pdf_dest_type(a) type((a) + 6) +# define pdf_dest_named_id(a) subtype((a) + 6) +# define pdf_dest_id(a) vlink((a) + 6) +# define pdf_dest_xyz_zoom(a) vinfo((a) + 7) +# define pdf_dest_objnum(a) vlink((a) + 7) + +# define pdf_thread_named_id(a) subtype((a) + 6) +# define pdf_thread_id(a) vlink((a) + 6) +# define pdf_thread_attr(a) vinfo((a) + 7) + +# define pdf_end_link_node_size 3 +# define pdf_end_thread_node_size 3 +# define pdf_save_pos_node_size 3 + +# define pdf_colorstack_node_size 4 +# define pdf_setmatrix_node_size 3 + +# define pdf_colorstack_stack(a) vlink((a)+2) +# define pdf_colorstack_cmd(a) vinfo((a)+2) +# define pdf_colorstack_data(a) vlink((a)+3) +# define pdf_setmatrix_data(a) vlink((a)+2) + +# define pdf_save_node_size 3 +# define pdf_restore_node_size 3 + +typedef enum { + colorstack_set = 0, + colorstack_push, + colorstack_pop, + colorstack_current +} colorstack_commands; + +# define colorstack_data colorstack_push /* last value where data field is set */ + +# define user_defined_node_size 4 +# define user_node_type(a) vinfo((a)+2) +# define user_node_id(a) vlink((a)+2) +# define user_node_value(a) vinfo((a)+3) + +# define cancel_boundary_size 3 + +# define active_node_size 4 /*number of words in extended active nodes */ +# define fitness subtype /*|very_loose_fit..tight_fit| on final line for this break */ +# define break_node(a) vlink((a)+1) /*pointer to the corresponding passive node */ +# define line_number(a) vinfo((a)+1) /*line that begins at this breakpoint */ +# define total_demerits(a) varmem[(a)+2].cint /* the quantity that \TeX\ minimizes */ +# define active_short(a) vinfo(a+3) /* |shortfall| of this line */ +# define active_glue(a) vlink(a+3) /*corresponding glue stretch or shrink */ + +# define passive_node_size 7 +# define cur_break(a) vlink((a)+1) /*in passive node, points to position of this breakpoint */ +# define prev_break(a) vinfo((a)+1) /*points to passive node that should precede this one */ +# define passive_pen_inter(a) vinfo((a)+2) +# define passive_pen_broken(a) vlink((a)+2) +# define passive_left_box(a) vlink((a)+3) +# define passive_left_box_width(a) vinfo((a)+3) +# define passive_last_left_box(a) vlink((a)+4) +# define passive_last_left_box_width(a) vinfo((a)+4) +# define passive_right_box(a) vlink((a)+5) +# define passive_right_box_width(a) vinfo((a)+5) +# define serial(a) vlink((a)+6) /* serial number for symbolic identification */ + +# define delta_node_size 10 /* 8 fields, stored in a+1..9 */ + +# define couple_nodes(a,b) {assert(b!=null);vlink(a)=b;alink(b)=a;} +# define try_couple_nodes(a,b) if (b==null) vlink(a)=b; else {couple_nodes(a,b);} +# define uncouple_node(a) {assert(a!=null);vlink(a)=null;alink(a)=null;} + +# define cache_disabled max_halfword + +extern void delete_attribute_ref(halfword b); +extern void build_attribute_list(halfword b); + +extern int unset_attribute(halfword n, int c, int w); +extern void set_attribute(halfword n, int c, int w); +extern int has_attribute(halfword n, int c, int w); + +extern halfword new_span_node(halfword n, int c, scaled w); + +extern void print_short_node_contents(halfword n); +extern void show_node_list(int i); +extern pointer actual_box_width(pointer r, scaled base_width); + +/* TH: these two defines still need checking. The node ordering in luatex is not + quite the same as in tex82 */ + +# define precedes_break(a) (type((a))<math_node && (type(a)!=whatsit_node || subtype(a)!=dir_node)) +# define non_discardable(a) (type((a))<math_node) + +/* from luanode.c */ + +typedef struct _node_info { + int id; + int size; + const char **fields; + const char *name; +} node_info; + +extern node_info node_data[]; +extern node_info whatsit_node_data[]; +extern halfword new_node(int i, int j); +extern void flush_node_list(halfword); +extern void flush_node(halfword); +extern halfword do_copy_node_list(halfword, halfword); +extern halfword copy_node_list(halfword); +extern halfword copy_node(const halfword); +extern void check_node(halfword); +extern void check_node_mem(void); +extern void fix_node_list(halfword); +extern int fix_node_lists; +extern char *sprint_node_mem_usage(void); +extern halfword raw_glyph_node(void); +extern halfword new_glyph_node(void); +extern int valid_node(halfword); + +typedef enum { + normal_g = 0, + sfi, + fil, + fill, + filll +} glue_orders; + +# define zero_glue 0 +# define sfi_glue zero_glue+glue_spec_size +# define fil_glue sfi_glue+glue_spec_size +# define fill_glue fil_glue+glue_spec_size +# define ss_glue fill_glue+glue_spec_size +# define fil_neg_glue ss_glue+glue_spec_size +# define page_ins_head fil_neg_glue+glue_spec_size +# define contrib_head page_ins_head+temp_node_size +# define page_head contrib_head+temp_node_size +# define temp_head page_head+temp_node_size +# define hold_head temp_head+temp_node_size +# define adjust_head hold_head+temp_node_size +# define pre_adjust_head adjust_head+temp_node_size +# define active pre_adjust_head+temp_node_size +# define align_head active+active_node_size +# define end_span align_head+temp_node_size +# define begin_point end_span+span_node_size +# define end_point begin_point+glyph_node_size +# define var_mem_stat_max (end_point+glyph_node_size-1) + +# define stretching 1 +# define shrinking 2 + +# define is_running(A) ((A)==null_flag) /* tests for a running dimension */ + +extern halfword tail_of_list(halfword p); +extern void delete_glue_ref(halfword p); + +extern int var_used; +extern halfword temp_ptr; + +# define cache_disabled max_halfword + +extern int max_used_attr; +extern halfword attr_list_cache; + +extern halfword new_null_box(void); +extern halfword new_rule(void); +extern halfword new_glyph(int f, int c); +extern quarterword norm_min(int h); +extern halfword new_char(int f, int c); +extern scaled glyph_width(halfword p); +extern scaled glyph_height(halfword p); +extern scaled glyph_depth(halfword p); +extern halfword new_disc(void); +extern halfword new_math(scaled w, int s); +extern halfword new_spec(halfword p); +extern halfword new_param_glue(int n); +extern halfword new_glue(halfword q); +extern halfword new_skip_param(int n); +extern halfword new_kern(scaled w); +extern halfword new_penalty(int m); + +#endif |