Re: Unexpected comparison behavior change in 4.5.1
This WebDNA talk-list message is from 2003
It keeps the original formatting.
numero = 48760
interpreted = N
texte = What your comparison is saying IF bob contains NOTHING then true. bob contains bob therefore is false in both cases.On Tuesday, March 18, 2003, at 01:56 AM, Brian Fries wrote:> On Monday, March 17, 2003, at 10:38 PM, Charles Kline wrote: > >> >> On Tuesday, March 18, 2003, at 01:32 AM, Brian Fries wrote: >> >>> [showif bob^] >>> >>> or >>> >>> [if bob^] >>> >>> >>> In my tests, these evaluate to true under 4.5.0 and earlier, and >>> to false under 4.5.1. Clearly URL is not the issue here. >>> >> [showif bob^] should evaluate to 'false' so it seems the bug was in >> 4.5.0 > > And WHY should [showif bob^] evaluate false? I don't see anything in > the empty string that isn't also in bob, therefore I - and every > version of WebDNA prior to 4.5.1 - would expect it to evaluate to > true. > >> >> [if bob^] should evaluate to 'false' as well. >> > > Again, why is false any better than true for this? If WebDNA were > being written from scratch, then it would be the right time to make a > choice on this. But, since it's worked the same way since I began > using the product in 1997, I think its a little late to make this > change. > > I'm not really here to debate which way it SHOULD resolve the > comparison, I'm only here to point out that it broke my code - which > was fully tested and had been working fine for years. > >> It was always my understanding that when using [if] to compare >> strings, they needed to be in quotes. Was in the docs. as that from >> the beginning. >> > > Relevance? What quotes do you see missing from my example? > > - brian > > > ------------------------------------------------------------- > This message is sent to you because you are subscribed to > the mailing list
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Associated Messages, from the most recent to the oldest:
What your comparison is saying IF bob contains NOTHING then true. bob contains bob therefore is false in both cases.On Tuesday, March 18, 2003, at 01:56 AM, Brian Fries wrote:> On Monday, March 17, 2003, at 10:38 PM, Charles Kline wrote: > >> >> On Tuesday, March 18, 2003, at 01:32 AM, Brian Fries wrote: >> >>> [showif bob^] >>> >>> or >>> >>> [if bob^] >>> >>> >>> In my tests, these evaluate to true under 4.5.0 and earlier, and >>> to false under 4.5.1. Clearly URL is not the issue here. >>> >> [showif bob^] should evaluate to 'false' so it seems the bug was in >> 4.5.0 > > And WHY should [showif bob^] evaluate false? I don't see anything in > the empty string that isn't also in bob, therefore I - and every > version of WebDNA prior to 4.5.1 - would expect it to evaluate to > true. > >> >> [if bob^] should evaluate to 'false' as well. >> > > Again, why is false any better than true for this? If WebDNA were > being written from scratch, then it would be the right time to make a > choice on this. But, since it's worked the same way since I began > using the product in 1997, I think its a little late to make this > change. > > I'm not really here to debate which way it SHOULD resolve the > comparison, I'm only here to point out that it broke my code - which > was fully tested and had been working fine for years. > >> It was always my understanding that when using [if] to compare >> strings, they needed to be in quotes. Was in the docs. as that from >> the beginning. >> > > Relevance? What quotes do you see missing from my example? > > - brian > > > ------------------------------------------------------------- > This message is sent to you because you are subscribed to > the mailing list . > To unsubscribe, E-mail to: > To switch to the DIGEST mode, E-mail to > > Web Archive of this list is at: http://webdna.smithmicro.com/ > ------------------------------------------------------------- This message is sent to you because you are subscribed to the mailing list . To unsubscribe, E-mail to: To switch to the DIGEST mode, E-mail to Web Archive of this list is at: http://webdna.smithmicro.com/
Charles Kline
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