00673: PmWiki changes a character with a [[http://en.wikipedia.org/wiki/Macron|macron]] to a character with a [[http://en.wikipedia.org/wiki/Circumflex|circumflex]] on save
- Description
PmWiki changes a character with a macron to a character with a circumflex on save.
See Macron
- Problem
- A browser or server (not PmWiki) changes a character with a macron to a character with a circumflex on save (see the rightmost column in the table below).
| Character | Unicode | ISO-8859-1 | approximation HTML entity | chr |
|---|---|---|---|---|
| Capital letter A with macron | U+0100 | AA | Ā Ā | Â |
| Small letter a with macron | U+0101 | aa | ā ā | â |
| Capital letter E with macron | U+0112 | EE | Ē Ē | Ç |
| Small letter e with macron | U+0113 | ee | ē ē | ç |
| Capital letter I with macron | U+012A | II | Ī Ī | Î |
| Small letter i with macron | U+012B | ii | ī ī | î |
| Capital letter O with macron | U+014C | OO | Ō Ō | Ô |
| Small letter o with macron | U+014D | oo | ō ō | ô |
| Capital letter U with macron | U+016A | UU | Ū Ū | Û |
| Small letter u with macron | U+016B | uu | ū ū | û |
References
| IE6.02 | ā | ā |
| Firefox 1.5.0.1 | ā | |
| Opera 8.5.2 | ā | |
| Mozilla 1.8a5 | ā |
ĀĀĀĀ
PmWiki doesn't do any such conversions on its own -- there must be some other component that is performing the conversion. I suspect its your browser that is actually changing the characters.
In particular, my browser (Firefox 1.5) is automatically converting "Ā" into Ā prior to sending it to PmWiki.
One thing to note is that that macron characters are outside of the 0-255 codepoint range, so unless a site is using UTF-8 a browser might be very confused and simply try to map things onto ISO-8859-1 (Latin-1, PmWiki's default).
At any rate, I don't think this is a PmWiki bug but is instead a browser bug. What browser are you using?
Pm
I see, I mainly use IE 6.02, but I also test with Opera 8 and Firefox 1.5, all of which converted as you found above on PmWiki (but not my wikis).
Is it possible it a (Apache) server setting?
eg would it help if the content-type was set to a character set?
After more testing it is related to the generation of the macron character, at home I use the Microsoft Mâori keyboard on XP (see language settings), at work it is a a program called Patuhi. Having said all that I have yet to determine how to stop it happening on my wikis, when I find out I'll tell ya.
It's possible that Apache is sending the wrong content-type or character set. I've seen instances where Apache likes to enforce utf-8 on character sets even when the application specifies a different one. Is there a url I could test so that I could see the headers your server is sending back? Perhaps that would provide a clue.
Pm
It is quite confusing. Even using the Microsoft Māori language keyboard (eg in this ūpdātē) while the character displays correctly in the text area before submission, it is wrong afterwards - when displayed.
Yes, please try http://ttc.org.nz/pmwiki/pmwiki.php/Test/Macron, unfortunately the site I am having most trouble with is an intranet.