From 099bed71ffa7fb4e19f4e614c077a149aae72930 Mon Sep 17 00:00:00 2001 From: Andreas Scherer Date: Wed, 10 Jun 2020 14:32:32 +0000 Subject: [WEB2C] Redactions in changefiles. Most notably: * Section [34] in PKTYPE: More consistent layout of meta-comments * Section [8] in TANGLE: Max out some array sizes as in CTANGLE. git-svn-id: svn://tug.org/texlive/trunk@55506 c570f23f-e606-0410-a88d-b1316a301751 --- Build/source/texk/web2c/pktype.ch | 20 +++++++++++++++----- 1 file changed, 15 insertions(+), 5 deletions(-) (limited to 'Build/source/texk/web2c/pktype.ch') diff --git a/Build/source/texk/web2c/pktype.ch b/Build/source/texk/web2c/pktype.ch index 7e18913318f..d6fd34353a9 100644 --- a/Build/source/texk/web2c/pktype.ch +++ b/Build/source/texk/web2c/pktype.ch @@ -141,7 +141,9 @@ end; @!cur_loc:integer; {how many bytes have we read?} @z -@x [??] Use modified routines to access pk_file. +@x [34] Use modified routines to access pk_file. +@ We also need a function that will get a single byte from the \.{pk} file. + @p function pk_byte : eight_bits ; var temp : eight_bits ; begin @@ -151,10 +153,10 @@ begin pk_byte := temp ; end ; @y -We shall use a set of simple functions to read the next byte or +@ We shall use a set of simple functions to read the next byte or bytes from |pk_file|. There are seven possibilities, each of which is treated as a separate function in order to minimize the overhead for -subroutine calls. We comment out the ones we don't need +subroutine calls. We comment out the ones we don't need. @^system dependencies@> @d pk_byte==get_byte @@ -166,6 +168,7 @@ begin if eof(pk_file) then get_byte:=0 else begin read(pk_file,b); incr(cur_loc); get_byte:=b; end; end; +@# @{ function signed_byte:integer; {returns the next byte, signed} var b:eight_bits; @@ -173,12 +176,14 @@ begin read(pk_file,b); incr(cur_loc); if b<128 then signed_byte:=b @+ else signed_byte:=b-256; end; @} +@# function get_two_bytes:integer; {returns the next two bytes, unsigned} var a,@!b:eight_bits; begin read(pk_file,a); read(pk_file,b); cur_loc:=cur_loc+2; get_two_bytes:=a*256+b; end; +@# @{ function signed_pair:integer; {returns the next two bytes, signed} var a,@!b:eight_bits; @@ -187,14 +192,18 @@ cur_loc:=cur_loc+2; if a<128 then signed_pair:=a*256+b else signed_pair:=(a-256)*256+b; end; -@# +@} +@/ +@{ function get_three_bytes:integer; {returns the next three bytes, unsigned} var a,@!b,@!c:eight_bits; begin read(pk_file,a); read(pk_file,b); read(pk_file,c); cur_loc:=cur_loc+3; get_three_bytes:=(a*256+b)*256+c; end; -@# +@} +@/ +@{ function signed_trio:integer; {returns the next three bytes, signed} var a,@!b,@!c:eight_bits; begin read(pk_file,a); read(pk_file,b); read(pk_file,c); @@ -203,6 +212,7 @@ if a<128 then signed_trio:=(a*256+b)*256+c else signed_trio:=((a-256)*256+b)*256+c; end; @} +@# function signed_quad:integer; {returns the next four bytes, signed} var a,@!b,@!c,@!d:eight_bits; begin read(pk_file,a); read(pk_file,b); read(pk_file,c); read(pk_file,d); -- cgit v1.2.3