Special characters for tags. How ?

Question

If I want to add special tags they are not working.

Examples:

.htaccess

.net

c++

etc...

 

how can I make them work ?

Comments

See here: https://github.com/q2a/question2answer/issues/633

Answer 1

There's an option 'Use comma as the only tag separator' in the 'Posting' panel of the admin section. This allows all special characters in tags (except comma, of course).

Comments

I did not see that option.

Thank you!

Answer 2

Search answers of this site is your friend ;)

look in the related questions on the side bar

http://www.question2answer.org/qa/803/special-chars-are-not-accepted-in-tags

Comments

That link says something for version 1.2 and 2010. I have 1.5.4.

Is there an actual example or code to know how to do it ?

Can you please share that ?

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In 1.5.4, there is a constant which is defined in "qa-util-string.php" (line 711), which by defaut is defined with the following content.

@define('QA_PREG_INDEX_WORD_SEPARATOR', '[\n\r\t\ \!\"\\\'\(\)\*\+\,\.\/\:\;\<\=\>\?\[\\\\\]\^\`\{\|\}\~]');

These are characters used as word separators as I understand it.

Say you want to be able to use tag 'C++', you then need to remove the character '+' from the word separator list, that is you need to remove it from the entries (along with the antislash escape), i.e you remove '\+'

The constant definition becomes:

@define('QA_PREG_INDEX_WORD_SEPARATOR', '[\n\r\t\ \!\"\\\'\(\)\*\,\.\/\:\;\<\=\>\?\[\\\\\]\^\`\{\|\}\~]');

Same applies to the dot character if you need it for '.htacces'

I would remove characters only when needed and cautiosly though.

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Thank you yves, that really helped.

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I have to remove them in QA_PREG_INDEX_WORD_SEPARATOR and QA_PREG_BLOCK_WORD_SEPARATOR right ?

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QA_PREG_INDEX_WORD_SEPARATOR seems to be enough for the tags to show up in questions with the special character.
The less the tweak the better.
I would only modify this one unless you find out in the future that tags don't show up as you expect elsewhere

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Thank you ! :)

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In the admin panel I have access to settings
- Maximum number of tags:
But I do not have access to a set
- Maximum number of characters in the tags
 
The default is 800 characters in question.
I want to increase this number. how can I do this?
Tags are saved to the db table qa_posts the column (tags varchar (800). However increase of 800 does not work.
The database localhost "information_schema" COLUMNS is a record:
qa_widgets - tags - 4 - NULL - NO - varchar - 800 - 800 - null - null - ascii - ascii_general_ci - varchar (800),
who probably defines the maximum number of characters, but I can not change that.