Yes .. that was a poor design decision by me. Violates the 'surprise' criterion (as you just demonstrated). Still, I've yet to see a programming language that avoids that as well as Rexx did (especially in 1979 context)! Mike
_____ From: Ruurd Idenburg [mailto:ru...@idenburg.net] Sent: 28 July 2020 20:32 To: oorexx-devel@lists.sourceforge.net Subject: Re: [Oorexx-devel] A question I was just curious and I really should have known better, having used rexx since 1979, but still was a bit surprised when gotten hit by it, so now it is: zoom=12;x=13;y=3;loc=zoom'/'||x'/'y'.png' Ruurd On 7/28/20 8:21 PM, Mike Cowlishaw wrote: The same is true for '10001010'b .. a change that unexpectedly broke some important applications when we introduced it (e.g., LISTSERV). I'd use a different notation, nowadays, for hex and binary constants (see NetRexx). Sometimes I tried too much to follow the conventions of earlier languages. Given, the notation, however, I think the precedence is correct .. consider a program full of hex strings then someone makes a quick change at the top of the program and adds a variable called 'x' ... Mike _____ From: Rick McGuire [mailto:object.r...@gmail.com] Sent: 28 July 2020 19:03 To: Open Object Rexx Developer Mailing List Subject: Re: [Oorexx-devel] A question Yes, a literal string followed immediately by the symbol x is considered a hex literal. It's always been that way. Rick On Tue, Jul 28, 2020 at 1:54 PM Ruurd Idenburg <ru...@idenburg.net> wrote: Is the result below what should be expected: 'something'x taking precedent over implied concatenation? Ruurd 'rexx -v' Open Object Rexx Version 5.0.0 r12100 Build date: Jul 21 2020 Addressing mode: 64 Copyright (c) 1995, 2004 IBM Corporation. All rights reserved. Copyright (c) 2005-2020 Rexx Language Association. All rights reserved. This program and the accompanying materials are made available under the terms of the Common Public License v1.0 which accompanies this distribution or at http://www.oorexx.org/license.html rc = 0 ........................................ rexxtry.rex on LINUX zoom=12;x=13,y=3;loc=zoom'/'x'/'y'.png' Oooops ! ... try again. Invalid hexadecimal or binary string. Only 0-9, a-f, A-F, and whitespace characters are valid in a hexadecimal string; found "/". _______________________________________________ Oorexx-devel mailing list Oorexx-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/oorexx-devel _______________________________________________ Oorexx-devel mailing list Oorexx-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/oorexx-devel
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