diff options
Diffstat (limited to 'library/simplepie/idn/ReadMe.txt')
| -rw-r--r-- | library/simplepie/idn/ReadMe.txt | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/library/simplepie/idn/ReadMe.txt b/library/simplepie/idn/ReadMe.txt new file mode 100644 index 000000000..7ca8c7e6d --- /dev/null +++ b/library/simplepie/idn/ReadMe.txt @@ -0,0 +1,123 @@ +******************************************************************************* +* * +* IDNA Convert (idna_convert.class.php) * +* * +* http://idnaconv.phlymail.de mailto:phlymail@phlylabs.de * +******************************************************************************* +* (c) 2004-2007 phlyLabs, Berlin * +* This file is encoded in UTF-8 * +******************************************************************************* + +Introduction +------------ + +The class idna_convert allows to convert internationalized domain names +(see RFC 3490, 3491, 3492 and 3454 for detials) as they can be used with various +registries worldwide to be translated between their original (localized) form +and their encoded form as it will be used in the DNS (Domain Name System). + +The class provides two public methods, encode() and decode(), which do exactly +what you would expect them to do. You are allowed to use complete domain names, +simple strings and complete email addresses as well. That means, that you might +use any of the following notations: + +- www.nörgler.com +- xn--nrgler-wxa +- xn--brse-5qa.xn--knrz-1ra.info + +Errors, incorrectly encoded or invalid strings will lead to either a FALSE +response (when in strict mode) or to only partially converted strings. +You can query the occured error by calling the method get_last_error(). + +Unicode strings are expected to be either UTF-8 strings, UCS-4 strings or UCS-4 +arrays. The default format is UTF-8. For setting different encodings, you can +call the method setParams() - please see the inline documentation for details. +ACE strings (the Punycode form) are always 7bit ASCII strings. + +ATTENTION: We no longer supply the PHP5 version of the class. It is not +necessary for achieving a successfull conversion, since the supplied PHP code is +compatible with both PHP4 and PHP5. We expect to see no compatibility issues +with the upcoming PHP6, too. + + +Files +----- + +idna_convert.class.php - The actual class +idna_convert.create.npdata.php - Useful for (re)creating the NPData file +npdata.ser - Serialized data for NamePrep +example.php - An example web page for converting +ReadMe.txt - This file +LICENCE - The LGPL licence file + +The class is contained in idna_convert.class.php. +MAKE SURE to copy the npdata.ser file into the same folder as the class file +itself! + + +Examples +-------- + +1. Say we wish to encode the domain name nörgler.com: + +// Include the class +include_once('idna_convert.class.php'); +// Instantiate it * +$IDN = new idna_convert(); +// The input string, if input is not UTF-8 or UCS-4, it must be converted before +$input = utf8_encode('nörgler.com'); +// Encode it to its punycode presentation +$output = $IDN->encode($input); +// Output, what we got now +echo $output; // This will read: xn--nrgler-wxa.com + + +2. We received an email from a punycoded domain and are willing to learn, how + the domain name reads originally + +// Include the class +include_once('idna_convert.class.php'); +// Instantiate it (depending on the version you are using) with +$IDN = new idna_convert(); +// The input string +$input = 'andre@xn--brse-5qa.xn--knrz-1ra.info'; +// Encode it to its punycode presentation +$output = $IDN->decode($input); +// Output, what we got now, if output should be in a format different to UTF-8 +// or UCS-4, you will have to convert it before outputting it +echo utf8_decode($output); // This will read: andre@börse.knörz.info + + +3. The input is read from a UCS-4 coded file and encoded line by line. By + appending the optional second parameter we tell enode() about the input + format to be used + +// Include the class +include_once('idna_convert.class.php'); +// Instantiate it +$IDN = new dinca_convert(); +// Iterate through the input file line by line +foreach (file('ucs4-domains.txt') as $line) { + echo $IDN->encode(trim($line), 'ucs4_string'); + echo "\n"; +} + + +NPData +------ + +Should you need to recreate the npdata.ser file, which holds all necessary translation +tables in a serialized format, you can run the file idna_convert.create.npdata.php, which +creates the file for you and stores it in the same folder, where it is placed. +Should you need to do changes to the tables you can do so, but beware of the consequences. + + +Contact us +---------- + +In case of errors, bugs, questions, wishes, please don't hesitate to contact us +under the email address above. + +The team of phlyLabs +http://phlylabs.de +mailto:phlymail@phlylabs.de
\ No newline at end of file |