diff options
author | Akira Kakuto <kakuto@fuk.kindai.ac.jp> | 2016-02-07 13:10:31 +0000 |
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committer | Akira Kakuto <kakuto@fuk.kindai.ac.jp> | 2016-02-07 13:10:31 +0000 |
commit | 9535a28f71c31eec7d692a2548ea9ced57a066ff (patch) | |
tree | 774f301e352294d662b2e5f3b1f4df3e871f7be8 /Build/source/texk | |
parent | d73e50b427fdce5cb96a281f42a68d5d47daf3c5 (diff) |
web2c/xetexdir: sync with the upstream
git-svn-id: svn://tug.org/texlive/trunk@39614 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/texk')
-rw-r--r-- | Build/source/texk/web2c/xetexdir/ChangeLog | 2 | ||||
-rw-r--r-- | Build/source/texk/web2c/xetexdir/xetex.web | 92 |
2 files changed, 53 insertions, 41 deletions
diff --git a/Build/source/texk/web2c/xetexdir/ChangeLog b/Build/source/texk/web2c/xetexdir/ChangeLog index a0162542443..3946e904636 100644 --- a/Build/source/texk/web2c/xetexdir/ChangeLog +++ b/Build/source/texk/web2c/xetexdir/ChangeLog @@ -1,4 +1,4 @@ -2016-02-06 Akira Kakuto <kakuto@fuk.kinidai.ac.jp> +2016-02-07 Akira Kakuto <kakuto@fuk.kinidai.ac.jp> * xetex.web, NEWS: sync with the upstream. diff --git a/Build/source/texk/web2c/xetexdir/xetex.web b/Build/source/texk/web2c/xetexdir/xetex.web index 3bdb516745c..a17cc89a8b2 100644 --- a/Build/source/texk/web2c/xetexdir/xetex.web +++ b/Build/source/texk/web2c/xetexdir/xetex.web @@ -9308,6 +9308,10 @@ the internal quantity to be scanned; an error will be signalled if @d scanned_result_end(#)==cur_val_level:=#;@+end @d scanned_result(#)==@+begin cur_val:=#;scanned_result_end +@d char_class_limit = @"1000 +@d char_class_ignored == char_class_limit +@d char_class_boundary == (char_class_ignored - 1) + @p procedure scan_something_internal(@!level:small_number;@!negative:boolean); {fetch an internal parameter} label exit; @@ -9425,9 +9429,9 @@ else if cur_cmd<=assign_toks then end else cur_val:=sa_ptr(m) else if cur_chr=XeTeX_inter_char_loc then begin - scan_eight_bit_int; cur_ptr:=cur_val; - scan_eight_bit_int; - find_sa_element(inter_char_val, cur_ptr * @"100 + cur_val, false); + scan_char_class_not_ignored; cur_ptr:=cur_val; + scan_char_class_not_ignored; + find_sa_element(inter_char_val, cur_ptr*char_class_limit + cur_val, false); if cur_ptr=null then cur_val:=null else cur_val:=sa_ptr(cur_ptr); end else cur_val:=equiv(m); @@ -9776,10 +9780,6 @@ end applications of |scan_int| that have already been made inside of |scan_something_internal|. -@d char_class_limit = 16384 -@d char_class_ignored == char_class_limit -@d char_class_boundary == (char_class_limit - 1) - @ @<Declare procedures that scan restricted classes of integers@>= procedure scan_glyph_number(f: internal_font_number); @@ -9802,7 +9802,17 @@ begin scan_int; if (cur_val<0)or(cur_val>char_class_limit) then begin print_err("Bad character class"); @.Bad character code@> - help2("A character class must be between 0 and 16384.")@/ + help2("A character class must be between 0 and 4096.")@/ + ("I changed this one to zero."); int_error(cur_val); cur_val:=0; + end; +end; + +procedure scan_char_class_not_ignored; +begin scan_int; +if (cur_val<0)or(cur_val>char_class_limit) then + begin print_err("Bad character class"); +@.Bad character code@> + help2("A class for inter-character transitions must be between 0 and 4095.")@/ ("I changed this one to zero."); int_error(cur_val); cur_val:=0; end; end; @@ -23402,10 +23412,10 @@ are inside the individual sections. cur_ptr:=null; space_class:=sf_code(cur_chr) div @"10000; - if XeTeX_inter_char_tokens_en and space_class <> char_class_ignored then begin {class 16384 = ignored (for combining marks etc)} + if XeTeX_inter_char_tokens_en and space_class <> char_class_ignored then begin {class 4096 = ignored (for combining marks etc)} if prev_class = char_class_boundary then begin {boundary} if (state<>token_list) or (token_type<>backed_up_char) then begin - find_sa_element(inter_char_val, char_class_boundary*@"100 + space_class, false); + find_sa_element(inter_char_val, char_class_boundary*char_class_limit + space_class, false); if cur_ptr<>null then begin if cur_cmd<>letter then cur_cmd:=other_char; cur_tok:=(cur_cmd*max_char_val)+cur_chr; @@ -23415,7 +23425,7 @@ are inside the individual sections. end end end else begin - find_sa_element(inter_char_val, prev_class*@"100 + space_class, false); + find_sa_element(inter_char_val, prev_class*char_class_limit + space_class, false); if cur_ptr<>null then begin if cur_cmd<>letter then cur_cmd:=other_char; cur_tok:=(cur_cmd*max_char_val)+cur_chr; @@ -23431,7 +23441,7 @@ are inside the individual sections. @d check_for_post_char_toks(#)== if XeTeX_inter_char_tokens_en and (space_class<>char_class_ignored) and (prev_class<>char_class_boundary) then begin prev_class:=char_class_boundary; - find_sa_element(inter_char_val, space_class*@"100 + char_class_boundary, false); {boundary} + find_sa_element(inter_char_val, space_class*char_class_limit + char_class_boundary, false); {boundary} if cur_ptr<>null then begin if cur_cs=0 then begin if cur_cmd=char_num then cur_cmd:=other_char; @@ -26767,9 +26777,9 @@ toks_register,assign_toks: begin q:=cur_cs; end else e:=true else if cur_chr=XeTeX_inter_char_loc then begin - scan_eight_bit_int; cur_ptr:=cur_val; - scan_eight_bit_int; - find_sa_element(inter_char_val, cur_ptr*@"100 + cur_val, true); + scan_char_class_not_ignored; cur_ptr:=cur_val; + scan_char_class_not_ignored; + find_sa_element(inter_char_val, cur_ptr*char_class_limit + cur_val, true); cur_chr:=cur_ptr; e:=true; end; p:=cur_chr; {|p=every_par_loc| or |output_routine_loc| or \dots} @@ -26804,9 +26814,9 @@ if (cur_cmd=toks_register)or(cur_cmd=assign_toks) then end else q:=sa_ptr(cur_chr) else if cur_chr=XeTeX_inter_char_loc then begin - scan_eight_bit_int; cur_ptr:=cur_val; - scan_eight_bit_int; - find_sa_element(inter_char_val, cur_ptr*@"100 + cur_val, false); + scan_char_class_not_ignored; cur_ptr:=cur_val; + scan_char_class_not_ignored; + find_sa_element(inter_char_val, cur_ptr*char_class_limit + cur_val, false); if cur_ptr=null then q:=null else q:=sa_ptr(cur_ptr); end else q:=equiv(cur_chr); @@ -32487,17 +32497,18 @@ max_reg_help_line:="A register number must be between 0 and 32767."; @!max_reg_num: halfword; {largest allowed register number} @!max_reg_help_line: str_number; {first line of help message} -@ There are seven almost identical doubly linked trees, one for the -sparse array of the up to 32512 additional registers of each kind and +@ There are eight almost identical doubly linked trees, one for the +sparse array of the up to 32512 additional registers of each kind, +one for inter-character token lists at specified class transitions, and one for the sparse array of the up to 32767 additional mark classes. -The root of each such tree, if it exists, is an index node containing 16 -pointers to subtrees for 4096 consecutive array elements. Similar index -nodes are the starting points for all nonempty subtrees for 4096, 256, -and 16 consecutive array elements. These four levels of index nodes are +The root of each such tree, if it exists, is an index node containing 64 +pointers to subtrees for 64^4 consecutive array elements. Similar index +nodes are the starting points for all nonempty subtrees for 64^3, 64^2, +and 64 consecutive array elements. These four levels of index nodes are followed by a fifth level with nodes for the individual array elements. -Each index node is nine words long. The pointers to the 16 possible -subtrees or are kept in the |info| and |link| fields of the last eight +Each index node is 33 words long. The pointers to the 64 possible +subtrees or nodes are kept in the |info| and |link| fields of the last 32 words. (It would be both elegant and efficient to declare them as array, unfortunately \PASCAL\ doesn't allow this.) @@ -32507,8 +32518,8 @@ lower index node and the |sa_index| field contains four bits (one hexadecimal digit) of the register number or mark class. For the lowest index node the |link| field is |null| and the |sa_index| field indicates the type of quantity (|int_val|, |dimen_val|, |glue_val|, |mu_val|, -|box_val|, |tok_val|, or |mark_val|). The |sa_used| field in the index -nodes counts how many of the 16 pointers are non-null. +|box_val|, |tok_val|, |inter_char_val| or |mark_val|). The |sa_used| field in the index +nodes counts how many of the 64 pointers are non-null. The |sa_index| field in the nodes for array elements contains the four bits plus 16 times the type. Therefore such a node represents a count @@ -32531,7 +32542,7 @@ having given contents of the |sa_index| and |link| fields. @d box_val_limit=@"50 {$2^4\cdot(|box_val|+1)$} @d tok_val_limit=@"60 {$2^4\cdot(|tok_val|+1)$} @# -@d index_node_size=9 {size of an index node} +@d index_node_size=33 {size of an index node} @d sa_index==type {a four-bit address or a type or both} @d sa_used==subtype {count of non-null pointers} @@ -32540,12 +32551,12 @@ procedure new_index(@!i:quarterword; @!q:pointer); var k:small_number; {loop index} begin cur_ptr:=get_node(index_node_size); sa_index(cur_ptr):=i; sa_used(cur_ptr):=0; link(cur_ptr):=q; -for k:=1 to index_node_size-1 do {clear all 16 pointers} +for k:=1 to index_node_size-1 do {clear all 64 pointers} mem[cur_ptr+k]:=sa_null; end; -@ The roots of the seven trees for the additional registers and mark -classes are kept in the |sa_root| array. The first six locations must +@ The roots of the eight trees for the additional registers and mark +classes are kept in the |sa_root| array. The first seven locations must be dumped and undumped; the last one is also known as |sa_mark|. @d sa_mark==sa_root[mark_val] {root for mark classes} @@ -32561,7 +32572,7 @@ sa_mark:=null; sa_null.hh.lh:=null; sa_null.hh.rh:=null; @ @<Initialize table...@>= for i:=int_val to inter_char_val do sa_root[i]:=null; -@ Given a type |t| and a sixteen-bit number |n|, the |find_sa_element| +@ Given a type |t| and a twenty-four-bit number |n|, the |find_sa_element| procedure returns (in |cur_ptr|) a pointer to the node for the corresponding array element, or |null| when no such element exists. The third parameter |w| is set |true| if the element must exist, e.g., @@ -32569,19 +32580,20 @@ because it is about to be modified. The procedure has two main branches: one follows the existing tree structure, the other (only used when |w| is |true|) creates the missing nodes. -We use macros to extract the four-bit pieces from a sixteen-bit register -number or mark class and to fetch or store one of the 16 pointers from -an index node. +We use macros to extract the six-bit pieces from a twenty-four-bit register +number or mark class and to fetch or store one of the 64 pointers from +an index node. (Note that the |hex_dig| macros are mis-named since the conversion +from 4-bit to 6-bit fields for \XeTeX!) @d if_cur_ptr_is_null_then_return_or_goto(#)== {some tree element is missing} begin if cur_ptr=null then if w then goto #@+else return; end @# -@d hex_dig1(#)==# div 4096 {the fourth lowest hexadecimal digit} -@d hex_dig2(#)==(# div 256) mod 16 {the third lowest hexadecimal digit} -@d hex_dig3(#)==(# div 16) mod 16 {the second lowest hexadecimal digit} -@d hex_dig4(#)==# mod 16 {the lowest hexadecimal digit} +@d hex_dig1(#)==# div @"40000 {the fourth lowest 6-bit field} +@d hex_dig2(#)==(# div @"1000) mod @"40 {the third lowest 6-bit field} +@d hex_dig3(#)==(# div @"40) mod @"40 {the second lowest 6-bit field} +@d hex_dig4(#)==# mod @"40 {the lowest 6-bit field} @# @d get_sa_ptr==if odd(i) then cur_ptr:=link(q+(i div 2)+1) else cur_ptr:=info(q+(i div 2)+1) |