[Gambas-user] why this could not be? error in runtime?

Tony Morehen tmorehen at ...3602...
Sat Jul 29 06:15:32 CEST 2017 

Sorry about that,

What strings are you using?  What output do you want?  For example:
fn("(foo)") do you want "(foo)"  or "(foo"  yours returns "(foo"
fn("(foo)x") do you want "(foo)" or "(foo" yours returns "(foo"
fn("(foo)xx") do you want "(foo)" or "(foo" or "(foo)x" yours returns 
"(foo)x"
fn("(foo)xxx") do you want "(foo)" or "(foo" or "(foo)x" or "(foo)xx" 
yours returns "(foo)xx"

Let's get the algorithm right.  Then worry about bugs.

On 2017-07-28 11:53 PM, PICCORO McKAY Lenz wrote:
> HEY TONY; ITS PICCORO; NOT PICARO! GRRRRR
>
> in the playground wprks perfectly, i not have 3.10, but in the job i have
> 3.1 and at my home 3.5
> its a bug in 3.9 and 3.8, *with 3.1 works perfectly in debian squeeze (very
> older but better)*
>
> 2017-07-28 21:02 GMT-04:00 Adrien Prokopowicz <adrien.prokopowicz at ...626...>
> :
>
>> Actually, his original code is correct. For me it runs without error in
>> the IDE using
>> the 3.10 development version, but the editor is indeed having trouble
>> matching the
>> parentheses.
>>
> me too, the edtor has some problems, when the ide made a word wrap, and i
> have thesame behaviour, parentheses does not matching correctly..
>
>
>> I also tried it on the playground (which also uses 3.10) and it works
>> fine : https://gambas-playground.proko.eu/?gist=97ed16795393aa3b689
>> 13025e5d2b83c .
>>
> tested, me too..
>
>
>> However the playground's editor does match the parentheses correctly. :)
>>
> jajaja excelent work!
>
>
>> Which Gambas version are you using ? There may be an old bug here.
>>
> 3.9.1 with some git patches..
>
> in the job i have 3.1 and at my home 3.5
>
> its a bug in 3.9 and 3.8, with 3.1 works perfectly in debian squeeze (very
> older but better)
>
>
>
> Lenz McKAY Gerardo (PICCORO)
> http://qgqlochekone.blogspot.com
>
> 2017-07-28 23:46 GMT-04:00 Tony Morehen <tmorehen at ...3602...>:
>
>> It's difficult to say for sure what's happening without Piccaro's test
>> strings.  However, 2 things do come to mind.
>>
>> First, according to Gambas doc, InStr(strinchar, ")", -n) does a left to
>> right search for ")", starting at -n  characters from the end of
>> strinchar.  So if Instr doesn't find ")", it will return 0, which, in
>> conjunction with the second -1, will cause mid to drop the last character
>> of strinchar.  So to get the answer you want, use RInstr(strinchar,")").
>> which will do a right to left search for ")", starting at the end of
>> strinchar.
>>
>> Second, there may be a bug in gambas, or the documentation needs to make
>> clear what end of string means.  This is best explained by example:
>>
>> Instr("(foo)",")",-1) returns 5
>> Instr("(foo)f",")",-1) returns 5
>> Instr("(foo)ff",")",-1) returns 0
>>
>> This means that Instr(s1,s2,-1) begins its search one character before the
>> last character of the string.  So end of string actually means last
>> character of the string and the docs should make that explicit or there is
>> a bug if the intended meaning of end of string is the position after the
>> last character of the string.
>>
>>
>>
>> On 2017-07-28 09:31 PM, Fernando Cabral wrote:
>>
>>> Piccoro, sorry for my previous information. Something was missing.
>>> In fact, both versions work the same:
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> *  strinchar = "test )after)r"    positionlen = (InStr(strinchar, ")", -1)
>>> - 1)    Print strinchar    Print positionlen    strinchar = Mid(strinchar,
>>> 1, positionlen)     Print strinchar    strinchar = "test )after)r"
>>> strinchar = Mid(strinchar, 1, (InStr(strinchar, ")", -1) - 1))    Print
>>> strinchar *
>>> Both print  "test )after"
>>>
>>> - fernando
>>>
>>> 2017-07-28 22:02 GMT-03:00 Adrien Prokopowicz <
>>> adrien.prokopowicz at ...626...>
>>> :
>>>
>>> Le Sat, 29 Jul 2017 02:40:44 +0200, Jussi Lahtinen <
>>>> jussi.lahtinen at ...626...> a écrit:
>>>>
>>>> No... again. My initial mail was correct. It should be:
>>>>
>>>>> strinchar = Mid(strinchar, 1, (InStr(strinchar, ")", -1) - 1))
>>>>>
>>>>> But the IDE makes highlighting bug with the brackets.
>>>>>
>>>>>
>>>>> Jussi
>>>>>
>>>>> On Sat, Jul 29, 2017 at 3:33 AM, Jussi Lahtinen <
>>>>> jussi.lahtinen at ...626...
>>>>> wrote:
>>>>>
>>>>> Hmmm... sorry, no mistake... I will look closer.
>>>>>
>>>>>> Jussi
>>>>>>
>>>>>> On Sat, Jul 29, 2017 at 3:33 AM, Jussi Lahtinen <
>>>>>> jussi.lahtinen at ...626...>
>>>>>> wrote:
>>>>>>
>>>>>> Because the line makes no sense at all. Try to remove ")".
>>>>>>
>>>>>>> Jussi
>>>>>>>
>>>>>>> On Fri, Jul 28, 2017 at 11:55 PM, PICCORO McKAY Lenz <
>>>>>>> mckaygerhard at ...626...> wrote:
>>>>>>>
>>>>>>> in the following code:
>>>>>>>
>>>>>>>>       strinchar = Mid(strinchar, 1, InStr(strinchar, ")", -1) - 1)
>>>>>>>>
>>>>>>>> IDE said error invalid argument, but if i do:
>>>>>>>>
>>>>>>>>       psotionlen = InStr(strinchar, ")", -1) - 1
>>>>>>>>        strinchar = Mid(strinchar, 1, psotionlen)
>>>>>>>>
>>>>>>>> works, why?
>>>>>>>>
>>>>>>>> i wnat to remove the last occurence of a char but bybass some
>>>>>>>> possible
>>>>>>>> spaces/chars at the end of string
>>>>>>>>
>>>>>>>> Lenz McKAY Gerardo (PICCORO)
>>>>>>>> http://qgqlochekone.blogspot.com
>>>>>>>>
>>>>>>>> Actually, his original code is correct. For me it runs without error
>>>> in
>>>> the IDE using
>>>> the 3.10 development version, but the editor is indeed having trouble
>>>> matching the
>>>> parentheses.
>>>>
>>>> I also tried it on the playground (which also uses 3.10) and it works
>>>> fine : https://gambas-playground.proko.eu/?gist=97ed16795393aa3b689
>>>> 13025e5d2b83c .
>>>>
>>>> However the playground's editor does match the parentheses correctly. :)
>>>>
>>>> Which Gambas version are you using ? There may be an old bug here.
>>>>
>>>> --
>>>> Adrien Prokopowicz
>>>>
>>>>
>>>> ------------------------------------------------------------
>>>> ------------------
>>>> Check out the vibrant tech community on one of the world's most
>>>> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
>>>> _______________________________________________
>>>> Gambas-user mailing list
>>>> Gambas-user at lists.sourceforge.net
>>>> https://lists.sourceforge.net/lists/listinfo/gambas-user
>>>>
>>>>
>>>
>>
>> ------------------------------------------------------------
>> ------------------
>> Check out the vibrant tech community on one of the world's most
>> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
>> _______________________________________________
>> Gambas-user mailing list
>> Gambas-user at lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/gambas-user
>>
> ------------------------------------------------------------------------------
> Check out the vibrant tech community on one of the world's most
> engaging tech sites, Slashdot.org! http://sdm.link/slashdot
> _______________________________________________
> Gambas-user mailing list
> Gambas-user at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/gambas-user

More information about the User mailing list