From:	SMTP%"bailey@HMIVAX.HUMGEN.UPENN.EDU"  3-DEC-1993 09:12:57.95
To:	EVERHART
CC:	
Subj:	Patch: '%' in address rewrite rules is literal

Message-Id: <9312031009.AA07781@uu7.psi.com>
Date:         Tue, 30 Nov 1993 15:23:26 EST
Reply-To: Charles Bailey <bailey@HMIVAX.HUMGEN.UPENN.EDU>
Sender: ANU-NEWS Discussion <ANU-NEWS@VM1.NoDak.EDU>
From: Charles Bailey <bailey@HMIVAX.HUMGEN.UPENN.EDU>
Organization: HHMI/Human Genetics, Univ of Pa.
Subject:      Patch: '%' in address rewrite rules is literal
To: Multiple recipients of list ANU-NEWS <ANU-NEWS@VM1.NoDak.EDU>

Here's a little patch to Add_Transform.C which changes pattern matching so that
the '%' character is treated as a literal, rather than as a single-character
wildcard.  I've done this because here, and I suspect elsewhere, the '%'
character appears in address rewrite rules as part of a foreign mail transport
specifier (e.g. IN%), in which case I want it to match only addresses beginning
with "IN%", not any address beginning with "IN", followed by any single
character.  (This was brought to my attention earlier this month when I tried
to reply to an address whose first two characters were "IN", so it matched by
don't-mess-with-explicit-PMDF-addresses rewrite rule.  How many other people
had this happen to them? :-))  The '?' character is still available as a
single-character wildcard, as noted in the documentation.

Note that this change affects only address rewrite rules; pattern matching
elsewhere in News still accepts either '%' or '?' as single-character
wildcards.

                    Regards,
                    Charles Bailey

!-------------------------------------------------------------------------------
!              Computational Biology and Informatics Laboratory
!         Dept. of Genetics, Univ. of Pennsylvania School of Medicine
!              Philadelphia, PA USA 19104     Tel. (215) 573-3112
!          Internet: bailey@genetics.upenn.edu  (IN 128.91.200.37)
!-------------------------------------------------------------------------------
$! ------------------ CUT HERE -----------------------
$ v='f$verify(f$trnlnm("SHARE_UNPACK_VERIFY"))'
$!
$! This archive created:
$!  Name : 931130_Add_Transform.Patch
$!  By   : bailey@genetics.upenn.edu
$!  Date : 30-NOV-1993 15:15:17.71
$!  Using: VMS_SHARE 8.4, (C) 1993 Andy Harper, Kings College London UK
$!
$! Credit is due to these people for their original ideas:
$!    James Gray, Michael Bednarek
$!
$! TO UNPACK THIS SHARE FILE, CONCATENATE ALL PARTS IN ORDER
$! AND EXECUTE AS A COMMAND PROCEDURE  (  @name  )
$!
$! THE FOLLOWING FILE(S) WILL BE CREATED AFTER UNPACKING:
$!       1. 931130_ADD_TRANSFORM.PATCH;1
$!
$ set="set"
$ set symbol/scope=(nolocal,noglobal)
$ f=f$parse("SHARE_UNPACK_TEMP","SYS$SCRATCH:."+f$getjpi("","PID"))
$ e="write sys$error  ""%UNPACK"", "
$ w="write sys$output ""%UNPACK"", "
$ if .not. f$trnlnm("SHARE_UNPACK_LOG") then $ w = "!"
$ if f$getsyi("CPU") .gt. 127 then $ goto start
$ ve=f$getsyi("version")
$ if ve-f$extract(0,1,ve) .ges. "4.4" then $ goto start
$ e "-E-OLDVER, Must run at least VMS 4.4"
$ v=f$verify(v)
$ exit 44
$unpack: subroutine ! P1=filename, P2=checksum, P3=attributes,P4=size
$ if f$parse(P1) .nes. "" then $ goto dirok
$ dn=f$parse(P1,,,"DIRECTORY")
$ w "-I-CREDIR, Creating directory ''dn'"
$ create/dir 'dn'
$ if $status then $ goto dirok
$ e "-E-CREDIRFAIL, Unable to create ''dn' File skipped"
$ delete 'f'*
$ exit
$dirok:
$ x=f$search(P1)
$ if x .eqs. "" then $ goto file_absent
$ e "-W-EXISTS, File ''P1' exists. Skipped"
$ delete 'f'*
$ exit
$file_absent:
$ w "-I-UNPACK, Unpacking ", P5, " of ", P6, " - ", P1, " - ", P4, " Blocks"
$ n=P1
$ if P3 .nes. "" then $ n=f
$ if .not. f$verify() then $ define/user sys$output nl:
$ EDIT/TPU/NOSEC/NODIS/COM=SYS$INPUT/NOJOURNAL 'f'/OUT='n'
PROCEDURE GetHex(s,p)LOCAL x1,x2;x1:=INDEX(t,SUBSTR(s,p,1))-1;x2:=INDEX(t,
SUBSTR(s,p+1,1))-1;RETURN 16*x1+x2;ENDPROCEDURE;PROCEDURE SkipPartsep LOCAL m;
LOOP m:=MARK(NONE);EXITIF m=END_OF(b);DELETE(m);EXITIF INDEX(ERASE_LINE,
"-+-+-+-+-+-+-+-+")=1;ENDLOOP;ENDPROCEDURE;PROCEDURE ProcessLine LOCAL c,s,l,b,
n,p;c := ERASE_CHARACTER(1);s := ERASE_LINE;IF c = "X" THEN SPLIT_LINE; ENDIF;
MOVE_HORIZONTAL(-1);l := LENGTH(s);p := 1;LOOP EXITIF p > l;c := SUBSTR(s,p,1);
p := p+1;CASE c FROM ' ' TO '`' ['`']: COPY_TEXT(ASCII(GetHex(s,p))); p:=p+2;[
' ']: p:=p+1;[INRANGE,OUTRANGE]: COPY_TEXT(c);ENDCASE;ENDLOOP;ENDPROCEDURE;
PROCEDURE Decode LOCAL m;POSITION(BEGINNING_OF(b));LOOP m:=MARK(NONE);EXITIF m=
END_OF(b);DELETE(m);IF INDEX(CURRENT_LINE,"+-+-+-+-+-+-+-+-")=
1 THEN SkipPartSep;ELSE ProcessLine;MOVE_HORIZONTAL(1);ENDIF;ENDLOOP;
ENDPROCEDURE;SET(FACILITY_NAME,"UNPACK");SET(SUCCESS,OFF);SET(INFORMATIONAL,
OFF);t:="0123456789ABCDEF";f:=GET_INFO(COMMAND_LINE,"file_name");b:=
CREATE_BUFFER(f,f);Decode;WRITE_FILE(b,GET_INFO(COMMAND_LINE,"output_file"));
QUIT;
$ if p3 .eqs. "" then $ goto dl
$ open/write fdl &f
$ write fdl "RECORD"
$ write fdl P3
$ close fdl
$ w "-I-CONVRFM, Converting record format to ", P3
$ convert/fdl=&f &f-1 &P1
$dl: delete 'f'*
$ checksum 'P1'
$ if checksum$checksum .nes. P2 then $ -
  e "-E-CHKSMFAIL, Checksum of ''P1' failed."
$ exit
$ endsubroutine
$start:
$!
$ create 'f'
XANU`20News`20Patch
XPatch`20ID:`20931130_add_transform.c!bailey@genetics.upenn.edu
XDate:`2030-Nov-1993
XAuthor:`20Charles`20Bailey`20`20bailey@genetics.upenn.edu
XNews`20Version:`206.1beta8
XNews`20Files:`20Add_Transform.C
XDescription:`20Changes`20routine`20match()`20so`20that`20'%'`20character`20is
V`20taken`20as`20a
Xliteral,`20rather`20than`20as`20a`20wildcard,`20since`20rewrite`20rules`20may
V`20include`20this
Xcharacter`20(e.g.`20as`20part`20of`20a`20foreign`20mail`20transport`20specifie
Vr).`20`20'?'`20can`20still
Xbe`20used`20as`20a`20wildcard`20placeholder`20for`20any`20single`20character.
V
X***`20add_transform.c
X---`20add_transform_new.c
X**************
X***`2091,93
X`20`20**--
X`20`20**/
X`20`20`0C
X---`2091,96`20-----
X+`20**`09V6.1b8`0930-Nov-1993`09Charles`20Bailey`20`20bailey@genetics.upenn.ed
Vu
X+`20**`09`20`20-`20don't`20use`20'%'`20==`20any`201`20char`20in`20match(),`20s
Vince`20rewrite`20rules`20may
X+`20**`09`20`20`20`20include`20mail`20transport`20specifiers`20as`20patterns
V`20to`20match`20(e.g.`20in%*)
X`20`20**--
X`20`20**/
X`20`20`0C
X**************
X***`20330,336
X`20`20`20`20`20`20`20`20`7D
X`20`20`20`20`20`20return(1);
X`20`20`20`20`20`20`7D
X!`20`20`20if`20((*p`20==`20'?')`20`7C`7C`20(*p`20==`20'%'))`20return(match(l+1
V,p+1,i,li+1));
X`20`20`20`20if`20(*p`20==`20'`5E')`20return`20((*l`20==`20*(p+1))`20`26`26`20m
Vatch(l+1,p+2,i,li+1));
X`20`20`20`20return((*l`20==`20*p)`20`26`26`20match(l+1,p+1,i,li+1));
X`20`20`7D
X---`20333,342`20-----
X`20`20`20`20`20`20`20`20`7D
X`20`20`20`20`20`20return(1);
X`20`20`20`20`20`20`7D
X!`20`20`20/*`20don't`20use`20'%'`20==`20any`201`20char`20here,`20since`20rewri
Vte`20rules`20may`20include
X!`20`20`20`20`20`20mail`20transport`20specifiers`20as`20patterns`20to`20match
V`20(e.g.`20in%*)
X!`20`20`20`20`20`2030-Nov-1993`20`20Charles`20Bailey`20`20bailey@genetics.upen
Vn.edu`20`20*/
X!`20`20`20if`20(*p`20==`20'?')`20return(match(l+1,p+1,i,li+1));
X`20`20`20`20if`20(*p`20==`20'`5E')`20return`20((*l`20==`20*(p+1))`20`26`26`20m
Vatch(l+1,p+2,i,li+1));
X`20`20`20`20return((*l`20==`20*p)`20`26`26`20match(l+1,p+1,i,li+1));
X`20`20`7D
X***`20patchlist.h;-1
X---`20patchlist.h
X**************
X***`201,1
X`20`20=+=+=`20End`20=+=+=
X---`201,2`20-----
X+`20931130_add_transform.c!bailey@genetics.upenn.edu
X`20`20=+=+=`20End`20=+=+=
$ call unpack 931130_ADD_TRANSFORM.PATCH;1 -
 1483306003 "FORMAT STREAM_LF;CARRIAGE_CONTROL CARRIAGE_RETURN" 4 1 1
$ v=f$verify(v)
$ exit
