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authorAkira Kakuto <kakuto@fuk.kindai.ac.jp>2017-09-24 04:09:46 +0000
committerAkira Kakuto <kakuto@fuk.kindai.ac.jp>2017-09-24 04:09:46 +0000
commit5c36658dc607c1565a19a064dfe2733e7f56902c (patch)
tree2c2cc4f03a9423a4e54ede7bc58e4a267587215a /Build/source/texk/web2c/pdftexdir/pdftex.web
parenta9ea55e5c48336cba5dda436578adb0e28731701 (diff)
pdftex.web, xetex.web: Avoid overwriting prim_* entries by primitive() (H. Kitagawa)
git-svn-id: svn://tug.org/texlive/trunk@45394 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/texk/web2c/pdftexdir/pdftex.web')
-rw-r--r--Build/source/texk/web2c/pdftexdir/pdftex.web48
1 files changed, 26 insertions, 22 deletions
diff --git a/Build/source/texk/web2c/pdftexdir/pdftex.web b/Build/source/texk/web2c/pdftexdir/pdftex.web
index a00d8d408ac..76b8109f4e9 100644
--- a/Build/source/texk/web2c/pdftexdir/pdftex.web
+++ b/Build/source/texk/web2c/pdftexdir/pdftex.web
@@ -6459,7 +6459,7 @@ A global boolean variable called |no_new_control_sequence| is set to
@d prim_prime=1777 {about 85\pct! of |primitive_size|}
@d prim_base=1
@d prim_next(#) == prim[#].lh {link for coalesced lists}
-@d prim_text(#) == prim[#].rh {string number for control sequence name}
+@d prim_text(#) == prim[#].rh {string number for control sequence name, plus one}
@d prim_is_full == (prim_used=prim_base) {test if all positions are occupied}
@d prim_eq_level_field(#)==#.hh.b1
@d prim_eq_type_field(#)==#.hh.b0
@@ -6468,6 +6468,7 @@ A global boolean variable called |no_new_control_sequence| is set to
@d prim_eq_type(#)==prim_eq_type_field(prim_eqtb[#]) {command code for equivalent}
@d prim_equiv(#)==prim_equiv_field(prim_eqtb[#]) {equivalent value}
@d undefined_primitive=0
+@d biggest_char=255 { 65535 in XeTeX }
@<Glob...@>=
@!prim: array [0..prim_size] of two_halves; {the primitives table}
@@ -6566,27 +6567,30 @@ var h:integer; {hash code}
@!k:pointer; {index in string pool}
@!j,@!l:integer;
begin
-if s<256 then begin
- p := s;
- if (p<0) or (prim_eq_level(p)<>level_one) then
- p := undefined_primitive;
-end
+if s<=biggest_char then begin
+ if s<0 then begin p:=undefined_primitive; goto found; end
+ else p:=(s mod prim_prime)+prim_base; {we start searching here}
+ end
else begin
j:=str_start[s];
if s = str_ptr then l := cur_length else l := length(s);
@<Compute the primitive code |h|@>;
- p:=h+prim_base; {we start searching here; note that |0<=h<hash_prime|}
- loop@+begin if prim_text(p)>0 then if length(prim_text(p))=l then
- if str_eq_str(prim_text(p),s) then goto found;
- if prim_next(p)=0 then
- begin if no_new_control_sequence then
- p:=undefined_primitive
- else @<Insert a new primitive after |p|, then make
- |p| point to it@>;
- goto found;
- end;
- p:=prim_next(p);
+ p:=h+prim_base; {we start searching here; note that |0<=h<prim_prime|}
+ end;
+loop@+begin
+ if prim_text(p)>1+biggest_char then { |p| points a multi-letter primitive }
+ begin if length(prim_text(p)-1)=l then
+ if str_eq_str(prim_text(p)-1,s) then goto found;
+ end
+ else if prim_text(p)=1+s then goto found; { |p| points a single-letter primitive }
+ if prim_next(p)=0 then
+ begin if no_new_control_sequence then
+ p:=undefined_primitive
+ else @<Insert a new primitive after |p|, then make
+ |p| point to it@>;
+ goto found;
end;
+ p:=prim_next(p);
end;
found: prim_lookup:=p;
end;
@@ -6599,7 +6603,7 @@ begin if prim_text(p)>0 then
until prim_text(prim_used)=0; {search for an empty location in |prim|}
prim_next(p):=prim_used; p:=prim_used;
end;
-prim_text(p):=s;
+prim_text(p):=s+1;
end
@ The value of |prim_prime| should be roughly 85\pct! of
@@ -6669,7 +6673,7 @@ var k:pool_pointer; {index into |str_pool|}
@!prim_val:integer; {needed to fill |prim_eqtb|}
begin if s<256 then begin
cur_val:=s+single_base;
- prim_val:=s;
+ prim_val:=prim_lookup(s);
end
else begin k:=str_start[s]; l:=str_start[s+1]-k;
{we will move |s| into the (possibly non-empty) |buffer|}
@@ -8918,7 +8922,7 @@ temporary file.
begin save_scanner_status := scanner_status; scanner_status:=normal;
get_token; scanner_status:=save_scanner_status;
if cur_cs < hash_base then
- cur_cs := prim_lookup(cur_cs-257)
+ cur_cs := prim_lookup(cur_cs-single_base)
else
cur_cs := prim_lookup(text(cur_cs));
if cur_cs<>undefined_primitive then begin
@@ -11802,7 +11806,7 @@ if_pdfprimitive_code: begin
get_next;
scanner_status:=save_scanner_status;
if cur_cs < hash_base then
- m := prim_lookup(cur_cs-257)
+ m := prim_lookup(cur_cs-single_base)
else
m := prim_lookup(text(cur_cs));
b :=((cur_cmd<>undefined_cs) and
@@ -28797,7 +28801,7 @@ any_mode(ignore_spaces): begin
get_next;
scanner_status:=t;
if cur_cs < hash_base then
- cur_cs := prim_lookup(cur_cs-257)
+ cur_cs := prim_lookup(cur_cs-single_base)
else
cur_cs := prim_lookup(text(cur_cs));
if cur_cs<>undefined_primitive then begin