[sf-perl] Printing TM trademark symbol in perl

[Francisco Obispo]

On Feb 9, 2012, at 12:32 PM, Dodger wrote:

> Moreover even if he changes the character set so it displays right in his viewer or editor, if that file is supposed to be used by someone else in a different environment that may expect a different charset it won't work. 
> 

right. this is why I think is a very bad idea to rely on the character if the file doesn't contain encoding information.

HTML and XML files can include an encoding instruction for the client to set it.


> Perl can't help that. About the only way around it is using some format like XML in which the character set can be explicitly specified. 
> 

Perl can check the client encoding (i.e. by looking at $ENV{LANG}) and determining whether is capable of displaying the character or not. That's usually what happens with some libraries that use encodings.



> Sent from my iPhone
> 
> On 09/02/2012, at 9:26 AM, Francisco Obispo <fobispo at isc.org> wrote:
> 
>> exactly.
>> It's how you interpret it, as long as it is the right character.
>> 
>> Francisco
>> 
>> 
>> On Feb 9, 2012, at 12:22 PM, Dodger wrote:
>> 
>>> It seems to me the problem isn't printing any given character into a file but, rather, whatever is being used to display the file not rendering the right character. 
>>> 
>>> 
>>> Sent from my iPhone
>>> 
>>> On 09/02/2012, at 8:35 AM, Francisco Obispo <fobispo at isc.org> wrote:
>>> 
>>>> you need to check your encoding to make sure that they match, and if they don't set them properly.
>>>> 
>>>> LANG="en_US.UTF-8" 
>>>> 
>>>> or any other UNICODE-compatible encoding.
>>>> 
>>>> It is generally a bad idea to rely on it because it if clients don't understand UNICODE they will see whatever character correspond to their table… and believe me, it's even worse when the client doesn't support multi-byte characters (in general).
>>>> 
>>>> Francisco
>>>> 
>>>> On Feb 9, 2012, at 8:27 AM, Richard Reina wrote:
>>>> 
>>>>> Hi Franisco, Your suggestion as well as print chr('8482') works.  However, it only works on my Ununtu Machines that are running Xwindows.  When I try it on a Centos machines in console mode it prints the circled "r" for registered trademark.  Would anyone know why this is and how to get the TM to print on a Centos machine?
>>>>> 
>>>>> 
>>>>> 
>>>>> 2012/2/8 Francisco Obispo <fobispo at isc.org>
>>>>> Actually in UTF-8 its: 8482
>>>>> 
>>>>> 
>>>>> perl -e 'use Encode; map { printf(qq{char %d is: %s\n},$_,encode_utf8(chr($_)))} (8482)'
>>>>> 
>>>>> 
>>>>> http://www.fileformat.info/info/unicode/char/2122/index.htm
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> On Feb 8, 2012, at 6:42 PM, Francisco Obispo wrote:
>>>>> 
>>>>>> I was hoping it would show up in the table.
>>>>>> 
>>>>>> 
>>>>>> 
>>>>>> On Feb 8, 2012, at 6:36 PM, Richard Reina wrote:
>>>>>> 
>>>>>>> I don't know whether it is or not. I was hoping it was because I have to find a way to print it.
>>>>>>> 
>>>>>>> 2012/2/8 Jeff Bragg <jackofnotrades at gmail.com>
>>>>>>> Is that actually in the ASCII set?  I see (in the output from a for loop printing the characters for ordinals 10 - 255) the circled 'r' (ord 174) and the copyright symbol (ord 169), but no trademark symbol.
>>>>>>> 
>>>>>>> 2012/2/8 Richard Reina <gatorreina at gmail.com>
>>>>>>> I am needing to print the TM symbol for a trademark into a regular ascii text file and having no luck doing so.  Does anyone know how?
>>>>>>> 
>>>>>>> Thanks for any help.
>>>>>>> 
>>>>>>> _______________________________________________
>>>>>>> SanFrancisco-pm mailing list
>>>>>>> SanFrancisco-pm at pm.org
>>>>>>> http://mail.pm.org/mailman/listinfo/sanfrancisco-pm
>>>>>>> 
>>>>>>> 
>>>>>>> 
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>>>>>> 
>>>>>> _______________________________________________
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>>>>> 
>>>>> 
>>>> 
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>>