Number: 900

Date:  1-May-84 16':48':03

Submitter: Sannella.PA

Source: JonL.pa

Subject: New STRPOS, STRPOSL': CASEARRAY, BACKWARDSFLG args

Assigned To: 

Attn: 

Status: Closed

In/By: Harmony

Problem Type: Bug

Impact: Annoying

Difficulty: Easy

Frequency: Everytime

Priority: Perhaps

System: Language Support

Subsystem: Storage Formats/Mgt

Machine: 

Disk: 

Lisp Version: 

Source Files: 

Microcode Version: 

Memory Size: 

File Server: 

Server Software Version: 

Disposition: '
["Sannella" "20-Aug-84 18':41':15" Attn': Status':(Fixed->Closed) In/By':]

Description: '
Date': 30 Apr 84 20':21 PDT'
From': JonL.pa'
Subject': Extensions to STRPOS, STRPOSL'
To': LispCore^'
'
A number of us are ready to have the extensions to STRPOS and STRPOSL put into the system; I intend to do this shortly before the next release.  STRPOS will then have two more (optional) arguments -- one to permit CASEARRAY shiftings, and another, BACKWARDSFLG, to permit searching in backwards order.'
'
Note that after discussion, it was decided to drop the CASEARRAY argument to STRPOSL; current proposed definitions are on BSEARCH<LispCore>Library> rather than from <Lisp>Library>.  BFILEPOS would remain in the BSEARCH library package.'
'
Any complications?'
'
-- JonL --'
'
-----'
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Date':  1 May 84 08':27 PDT'
From': Burton.pa'
Subject': Re': Extensions to STRPOS, STRPOSL'
In-reply-to': JonL.pa''s message of 30 Apr 84 20':21 PDT'
To': JonL.pa'
cc': LispCore^.pa'
'
A short procedural point': if you are going to put it in this release, the sooner the better.  Putting things in just before the release gives us less chance to discover any problems.'
'
Richard'
'
-----'
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Date':  1 May 84 11':36 PDT'
From': masinter.pa'
Subject': Re': Extensions to STRPOS, STRPOSL'
In-reply-to': JonL.pa''s message of 30 Apr 84 20':21 PDT'
To': JonL.pa'
cc': LispCore^.pa'
'
what was the motivation for putting it in the system at this time (rather than keeping it as a package?) Are there some parts of the system that use this?'
'
-----'
'
Date':  1 May 84 12':48 PDT'
From': vanMelle.pa'
Subject': Re': Extensions to STRPOS, STRPOSL'
In-reply-to': masinter.pa''s message of 1 May 84 11':36 PDT'
To': masinter.pa'
cc': LispCore^.pa'
'
I have asked for the CASEARRAY arg for Lafite''s searching commands, I think Tedit wants it for its Find command, and I periodically run into places that kludge around its nonexistence.  It''s a natural extension to STRPOS along the lines that FILEPOS has had for ages and ALPHORDER recently obtained.  So it seems amply justified to go into the system; I encouraged JonL to do so.  (The BACKWARDSFLG is less justified, but it doesn''t bother me particularly.)'
'
	Bill'
'
-----'
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Date':  1 May 84 13':51 PDT'
From': JonL.pa'
Subject': Re': Extensions to STRPOS, STRPOSL'
In-reply-to': masinter.pa''s message of 1 May 84 11':36 PDT'
To': masinter.pa'
cc': JonL.pa, LispCore^.pa'
'
Motivation is that parts of the system want to use it.  Several packages I have (including RS232) are currently doing a FILESLOAD of BSEARCH (in the case that (STRPOS "foo" "FOO") is NIL), and Bill has some proposals for Lafite that are pending this installation.'
'
BFILEPOS, while a nice complement to FILEPOS, doesn''t have any system clients yet, so it''s staying in the BSEARCH library package.'
'
-----'
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Date':  1 May 84 16':15 PDT'
From': JonL.pa'
Subject': Re': Extensions to STRPOS, STRPOSL'
In-reply-to': Burton.pa''s message of 1 May 84 08':27 PDT'
To': Burton.pa'
cc': JonL.pa, LispCore^.pa'
'
Ok, I moved them into IOCHAR now; will start a loadup tonite.'
'
'
---------------------------'
'
Date':  2 May 84 00':57 PST'
From': JonL.pa'
Subject': New loadup with extended STRPOS, STRPOSL'
To': LispCore^.pa'
'
cc': JonL.pa'
'
Latest sysouts on <LispCore>Next> have the new versions of STRPOS and STRPOSL, along with a few other changes the Greg made, and that I made, this evening.  '
'
By the bye, looks like the casearray argument for STRPOS goes a long way back (actually, I wanted it shortly after starting the RS232CHAT code too)'
'
     ----- Begin Forwarded Messages -----'
'
Date':  6 Jul 83 15':32 PDT'
From': Yonke.pa'
Subject': a case-array for STRPOS'
To': LispSupport.pa'
cc': Yonke.pa'
Lisp-System-Date': 28-JUN-83 19':31':02'
'
I propose we add another arg to STRPOS which will be a case-array (similar to the arg to FILEPOS).  Also, in addition I would like to see the arg be able to have the value T in which case the case array would be one that mapped alphabetic characters the same independent of case (this might eliminate the proliferation of case arrays).'
'
Martin'
'
'


Workaround: 

Test Case: 

Edit-By: Sannella

Edit-Date: 20-Aug-84 18':41':16