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New extended multilang filter!

Browse Source 
Now does lang replacement for each "langblock" (many lang-enabled tags
bunched together with only whitespace between), allowing:

  * Multiple langblocks per filtered text
  * Non-lang-translated content before, after, and between langblocks

This should be solving bugs 2878 and 2879. Buy one, get one free.
This commit is contained in:
defacer 2005-05-19 17:32:30 +00:00
parent 356d829527
commit fde4a0941b
1 changed files with 42 additions and 30 deletions
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72
filter/multilang/filter.php
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@ -39,44 +39,61 @@
function multilang_filter($courseid, $text) {
global $CFG;
/*
/// Do a quick check using stripos to avoid unnecessary work
if (stripos($text, '<lang') === false && stripos($text, '<span lang') === false) {
return $text;
}
*/
/// Flag this text as something not to cache
// [pj] I don't know about you but I find this new implementation funny :P
$search = '/(<(?:lang|span) lang="[a-zA-Z_-]*".*?>.+?<\/(?:lang|span)>\s*)+/is';
return preg_replace_callback($search, 'multilang_filter_impl', $text);
}
function multilang_filter_impl($langblock) {
global $CFG;
// This callbackis going to get called multiple times, so cache $preflangs
static $preflangs = NULL;
/// Flag this text as something not to cache
$CFG->currenttextiscacheable = false;
/// Get current language
$currentlang = current_language();
/// Get parent language
$langfile = "$CFG->dirroot/lang/$currentlang/moodle.php";
if ($result = get_string_from_file("parentlanguage", "$langfile", "\$parentlang")) {
eval($result);
if(empty($preflangs)) {
/// Get current language
$currentlang = current_language();
/// Get parent language
$langfile = "$CFG->dirroot/lang/$currentlang/moodle.php";
if ($result = get_string_from_file("parentlanguage", "$langfile", "\$parentlang")) {
eval($result);
}
/// Fill in the array of preffered languages
$preflangs = array();
$preflangs[] = $currentlang; /// First, the current lang
if (!empty($parentlang)) {
$preflangs[] = $parentlang; /// Then, if available, the parent lang
}
if ($currentlang != 'en') {
$preflangs[] = 'en'; /// Finally, if not used, add the en lang
}
}
/// Create an array of preffered languages
$preflangs = array();
$preflangs[] = $currentlang; /// First, the current lang
if (!empty($parentlang)) {
$preflangs[] = $parentlang; /// Then, if available, the parent lang
}
if ($currentlang != 'en') {
$preflangs[] = 'en'; /// Finally, if not used, add the en lang
}
// Setup is done, now do multilang replacement on the match we 've been called for
/// Break the text into lang sections
$search = '/<(?:lang|span) lang="([a-zA-Z_-]*)".*?>(.+?)<\/(?:lang|span)>/is';
preg_match_all($search,$text,$list_of_langs);
$searchtosplit = '/<(?:lang|span) lang="([a-zA-Z_-]*)".*?>(.+?)<\/(?:lang|span)>/is';
preg_match_all($searchtosplit, $langblock[0], $langlist);
/// Get the existing sections langs
/// Get the existing sections langs
$lang = '';
$minpref = count($preflangs);
$bestkey = 0;
//Iterate
foreach ($list_of_langs[1] as $key => $lang) {
foreach ($langlist[1] as $key => $lang) {
//Normalize: Moodle's langs are always lowercase and they use the underscore
//Should we be stricter?
$lang = strtolower(str_replace('-','_',$lang));
@ -90,12 +107,7 @@ function multilang_filter($courseid, $text) {
}
}
//If we have found some lang
if (!empty($lang)) {
$text = trim($list_of_langs[2][$bestkey]);
}
return $text;
return trim($langlist[2][$bestkey]);
}
?>