Problem with KDE Konqueror and PHP's nl2br() in handling carriage return and newline pairs.

Konqueror shows odd behavior when rendering html containing carriage returns ('\r' 0x0d ^M) that are not paired with a newline ('\n' 0x0a ^J). In a <textarea> in a <form>, text is entered that contains "\r\n" when the user presses the Enter key to begin a new line. This input from the user then goes to PHP's nl2br() function which replaces occurrences of '\n' with "<br>\n". So an occurrence of "\r\n" becomes "\r<br>\n" leaving an unpaired '\r'. I think that nl2br() should instead replace '\n' with "\n<br>" so that "\r\n" becomes "\r\n<br>". This would keep the "\r\n" pairs together and make Konqueror happy. Netscape has no problem with this. Attached are two html files. One has instances "\r<br>\n" in it caused by nl2br(), the other file has been brought into kwrite and then resaved. Kwrite is smart enough to detect the unpaired carriage returns, which are not normally used in a UNIX text file (a unix text file just uses a '\n' at the end of a line, whereas MSDOS uses "\r\n"), and treats the file as an MSDOS text file. Kwrite creates "\r\n" pairs throughout the file matching every lone '\n' with a '\r' in front of it, and every lone '\r' that it finds with a '\n' after it. Konqueror does not treat "\r<br>\n" the same as "\r\n<br>" in all situations. For instance, with unpaired carriage returns: <a href="file.html">file</a>^M<br> ^M<br> ^M<br>Hello, ^M<br> ^M<br>there ^M<br> ^M<br>how are you? was giving me: file Hello, there how are you? Without the unpaired carriage returns (^M): <a href="file.html">file</a> <br> <br> <br>Hello, <br> <br>there <br> <br>how are you? gave me: file Hello there how are you? The <a> tag makes a difference for some reason. If you remove it or put it at the end, then the output is the same: ^M<br> ^M<br>Hello, ^M<br> ^M<br>there ^M<br> ^M<br>how are you? ^M<br><a href="file.html">file</a>^M<br> gave me: Hello there how are you? file If this isn't clean enough or no one can duplicate this, I can try to explain again or make an better example. View the attached html files in Konqueror. The paired.html file is slightly larger after kwrite added '\r' and some '\n' to the file to make pairs. -- -------- Robert B. Easter reaster@comptechnews.com --------- - CompTechNews Message Board http://www.comptechnews.com/ - - CompTechServ Tech Services http://www.comptechserv.com/ - ---------- http://www.comptechnews.com/~reaster/ ------------

Attachment: [text/html] Contains unpaired newlines and returns which cause rendering trouble in Konqueror unpaired.html
Attachment: [text/html] The same file as unpaired, but resaved with kwrite which recreates newline and return pairs. paired.html