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authorKarl Berry <karl@freefriends.org>2023-02-21 22:26:33 +0000
committerKarl Berry <karl@freefriends.org>2023-02-21 22:26:33 +0000
commita3b9579689d76ded1ca36281779b5f4eb08c5451 (patch)
treef55f88010d6b2b5c3c324138698e338256615206 /Build/source/texk/web2c/xetexdir
parentb5d532a9dcae838d0ead1a88c75156168d146fb4 (diff)
transfer memory reduction for \special shipout from luatex to the other engines
git-svn-id: svn://tug.org/texlive/trunk@66038 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/texk/web2c/xetexdir')
-rw-r--r--Build/source/texk/web2c/xetexdir/ChangeLog5
-rw-r--r--Build/source/texk/web2c/xetexdir/xetex.web13
2 files changed, 13 insertions, 5 deletions
diff --git a/Build/source/texk/web2c/xetexdir/ChangeLog b/Build/source/texk/web2c/xetexdir/ChangeLog
index 469fd9add49..a7879ba2ac5 100644
--- a/Build/source/texk/web2c/xetexdir/ChangeLog
+++ b/Build/source/texk/web2c/xetexdir/ChangeLog
@@ -1,3 +1,8 @@
+2023-02-21 Phelype Oleinik <phelype.oleinik@latex-project.org>
+
+ * xetex.web: reduce memory usage for \special shipout,
+ a la HH/luatex.
+
2023-02-19 Martin Hosken <martin_hosken@sil.org>
* xetex.web (Insert glue for |split_top_skip|...),
diff --git a/Build/source/texk/web2c/xetexdir/xetex.web b/Build/source/texk/web2c/xetexdir/xetex.web
index 966ecd7b666..998d0774c06 100644
--- a/Build/source/texk/web2c/xetexdir/xetex.web
+++ b/Build/source/texk/web2c/xetexdir/xetex.web
@@ -30251,19 +30251,20 @@ that actually send out the requested data. Let's do \.{\\special} first
procedure special_out(@!p:pointer);
var old_setting:0..max_selector; {holds print |selector|}
@!k:pool_pointer; {index into |str_pool|}
+@!h:halfword;
@!q,@!r:pointer; {temporary variables for list manipulation}
@!old_mode:integer; {saved |mode|}
begin synch_h; synch_v;@/
doing_special:=true;
-old_setting:=selector; selector:=new_string;
-selector:=old_setting;
+old_setting:=selector;
if subtype(p)=latespecial_node then
begin @<Expand macros in the token list
and make |link(def_ref)| point to the result@>;
- write_tokens(p):=def_ref;
- end;
+ h:=def_ref;
+ end
+else h:=write_tokens(p);
selector:=new_string;
-show_token_list(link(write_tokens(p)),null,pool_size-pool_ptr);
+show_token_list(link(h),null,pool_size-pool_ptr);
selector:=old_setting;
str_room(1);
if cur_length<256 then
@@ -30273,6 +30274,8 @@ else begin dvi_out(xxx4); dvi_four(cur_length);
end;
for k:=str_start_macro(str_ptr) to pool_ptr-1 do dvi_out(so(str_pool[k]));
pool_ptr:=str_start_macro(str_ptr); {erase the string}
+if subtype(p)=latespecial_node then
+ flush_list(def_ref);
doing_special:=false;
end;