Stripping Returns

[JB]

Thank you for the reply and info.

I was wondering about limits in variables
and and the info everyone provided helps
me a lot.

John Balgenorth


On Nov 19, 2014, at 11:46 AM, Jerry Jensen <jhj at jhj.com> wrote:

> A couple more points:
> The space ending the "1234567890 " does wrap the line, but does NOT affect the limit.
> I tried putting the field back into a variable, and it is still 65533 length. The data is truncated.
> 
> JB note: The limit is only in FIELDS, NOT VARIABLES. You can read a long file into a variable in one go with no problem. Its only when you put it into a field that the limitation applies.
> 
> Jerry
> 
> On Nov 19, 2014, at 8:54 AM, DunbarX at aol.com wrote:
> 
>> Jacque.
>> 
>> The text is truncated, not simply not displayed:
>> 
>> on mouseUp
>>  put "1234567890 " into temp
>>  repeat 10000
>>     put temp after accum
>>  end repeat
>>  put accum into fld 1 -- 110,000 chars
>>  answer the length of fld 1
>> end mouseUp
>> 
>> You get 65,533.
>> 
>> Not sure where the last two chars went.
>> 
>> Craig
>> 
>> 
>> -----Original Message-----
>> From: J. Landman Gay <jacque at hyperactivesw.com>
>> To: How to use LiveCode <use-livecode at lists.runrev.com>
>> Sent: Wed, Nov 19, 2014 11:15 am
>> Subject: Re: Stripping Returns
>> 
>> 
>> Reading a file always gives you all the content regardless of the size, up to 
>> memory limits. Displaying a long line of text will truncate it after 62k but as 
>> I understand it, the truncation is visual only.  If a script asks for the line 
>> it is all returned. (Better check that, but that was my understanding.) 
>> 
>> But the restriction only applies to lines that don't wrap, such as those in list 
>> fields.  If the text contains spaces or other delimiting tokens, the text will 
>> wrap and the restriction is lifted. 
>> 
>> When reading a file from disk as text, line endings will be converted to the 
>> ones used by the current OS. Text read as binary will not be altered.  
>> 
>> 
>> On November 19, 2014 4:44:53 AM CST, JB <sundown at pacifier.com> wrote:
>>> Thank you.  The logic is simple enough.
>>> Even so it should be noted in the read
>>> file that reading to the end of a file will
>>> fail to provide you the info if the file has
>>> more than 65,535 characters.
>>> 
>>> John Balgenorth
>>> 
>>> 
>>> On Nov 18, 2014, at 8:35 PM, dunbarx at aol.com wrote:
>>> 
>>>> Hi.
>>>> 
>>>> 
>>>> Did you try this? Simple to do in a little test card. The chars
>>> beyond 65535 will be lost. Do you see what the likely answer to your
>>> second question is? Note that reading from a file does not anticipate
>>> what you will do with the data. Variables have no limits, within
>>> memory, of course, but what you do with that data may hit a wall.
>>>> 
>>>> 
>>>> Craig Newman
>>>> 
>>>> 
>>>> 
>>>> -----Original Message-----
>>>> From: JB <sundown at pacifier.com>
>>>> To: How to use LiveCode <use-livecode at lists.runrev.com>
>>>> Sent: Tue, Nov 18, 2014 9:48 pm
>>>> Subject: Stripping Returns
>>>> 
>>>> 
>>>> A field has a limit on the amount of characters
>>>> you can have on each line.  What if I put the
>>>> text of a field in a variable and it has 500,000
>>>> characters.  Then I strip all of the returns that
>>>> are in the field.  Does that leave only one line
>>>> with 500,000 characters?  That exceeds the
>>>> amount of characters allowed per line so what
>>>> happens to the text in the variable?
>>>> 
>>>> Another similar question is what happens if I am
>>>> reading a file until the end and it is very large.  Will
>>>> returns be automatically placed if needed so the line
>>>> limit got characters is not exceeded or do I need to
>>>> read large files in sections that are less than the line
>>>> limit for characters?
>>>> 
>>>> John Balgenorth
>>>> 
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>>> 
>>> 
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>> 
>> -- 
>> Jacqueline Landman Gay         |     jacque at hyperactivesw.com
>> HyperActive Software           |     http://www.hyperactivesw.com
>> 
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> 
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