Re: What are these ASCII values?
- From: dsarvas@xxxxxxxxx (Don)
- Date: Fri, 24 Jun 2005 13:29:36 GMT
Steve, Thanks, but the web page you pointed me to doesn't address the
issue of the purpose of these codes which is what I want to know in
regard to the codes I list in my posting that I can't identify. I was
already familiar with all the ASCII codes (standard and extended), but
why some of the extended codes are appearing is what I'm trying to
figure out. I can't find any pages on the web that give a more
detailed explanation of the extended ASCII character set other than a
character representation and those characters do not appear in the
text files I'm working with.
You might find the following page a little more informative regarding
the basic ASCII character set and their associated character
representations as well as their purpose. It also lists the control
codes (e.g. ^@, ^A) that are part of what I'm searching for in these
text files. But even this site doesn't give any detailed info
regarding the extended set other than a character representation, but
I believe that is all the extended set is really used for.
http://www.commonsoftinc.com/Babylon_Cpp/Documentation/Res/ASCIICharTable.htm
Don
On Thu, 23 Jun 2005 13:42:32 -0400, "95isalive" <admin@xxxxxxxxxxxxx>
wrote:
>They're all listed here:
>
>http://www.lookuptables.com/
>
>Steve
>
>
>"Don" <dsarvas@xxxxxxxxx> wrote in message news:42bad7ee.3649306@xxxxxxxxxxxxxxxxxxxx
>> I wrote an application that, in part, looks for and eliminates
>> unwanted control codes in plain text files by searching their ASCII
>> decimal values. It also locates, but leaves intact, certain control
>> codes needed for formatting such as Chr$(12) (page break), Chr$(13)
>> (carriage return), Chr$(10) (line feed), etc.
>>
>> Some typical unwanted codes include Chr$(0) (NULL), Chr$(5) (ENG),
>> etc. Usually when these appear in the file, they are represented by a
>> character that can be seen on the screen or on paper when printed
>> (e.g. @ or ^A, etc.)
>>
>> I was used to seeing only control codes that are represented by the
>> standard ASCII decimal values below 128. Just out of curiosity, I
>> added a search for decimal values in the extended ASCII character set
>> and was surprised to find a few that I can't identify.
>>
>> I was surprised because these are hidden in the text files. There are
>> no characters on the screen or in the printout to indicate that these
>> are present and I can't find a pattern in the text to determine why
>> these show up where they do. I'm assuming they have something to do
>> with the formatting of the text and that's why I don't see any
>> characters representing the codes, but some appear so infrequently
>> they don't seem to have any specific purpose for being there.
>>
>> The decimal values that are showing up in my search include the
>> following and always show up paired just the way I list them. They
>> don't appear to be a problem since they aren't visible and don't
>> appear to adversely affect the files in any way that I can determine.
>>
>> Can anyone identify the following pairs of ASCII decimal values and
>> their purpose or why they would be hidden in text files?
>>
>> 222/254 - This shows up for nearly all, if not all, lines of text in
>> the file
>>
>> 140/156 - This will show up several times in the file, but
>> infrequently.
>>
>> 198/230 - This shows up rarely.
>>
>> Thanks,
>>
>> Don
>>
>
>
.
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- From: Don
- Re: What are these ASCII values?
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