How to split a language string (Wordpress qTranslate) in javascript

Question

I've got this javascript string:

"<!--:fr-->Photos<!--:--><!--:en-->Pictures<!--:-->"

And I need to parse it to get every "language" in distinct strings. The ideal would be to have a function like:

function getText(text, lang){
    // get and return the string of the language "lang" inside the multilang string "text"
}

That I can call like that:

var frenchText = getText("<!--:fr-->Photos<!--:--><!--:en-->Pictures<!--:-->","fr");
// and would return:
// frenchText = Photos

If anyone know a good way to do that, probably with a regexp that would be FANTASTIC!!!

This question is answered using PHP here, if anyone is interested : http://stackoverflow.com/questions/1853406/simple-regular-expression-to-return-text-from-wordpress-title-qtranslate-plugi — Mazatec, Jun 25 '12 at 21:49

score 7 · Accepted Answer · answered Jun 29 '11 at 12:20

7

I don't think much explanation is necessary; you just add lang to a template for your regex and get the first backref (the (.*?) part). I don't believe any part of your supplied string constitutes a reserved character. Note that you could include some error handling in case no match is found, but I'll leave that to the OP:

function getText(text, lang) {
  // Builds regex based on supplied language
  var re = new RegExp("<!--:" + lang + "-->(.*?)<!--:-->");

  // Returns first backreference
  return text.match(re)[1];
}
getText("<!--:fr-->Photos<!--:--><!--:en-->Pictures<!--:-->", "fr");
// returns "Photos"

answered Jun 29 '11 at 12:20

brymck

7,555
28
31

how to check in a string like: "[:fr]Photos[:en]Pictures" ? thank you! – Magico Aug 28 '13 at 14:22
yes @brymck how to check it with "[:fr]french[:en]english[:]" ?? thanks in advance!! – Junaid Saleem Nov 22 '15 at 17:08

score 0 · Answer 2 · answered Nov 27 '12 at 19:25

Better to have the language set by PHP:

var lang = '<?php echo qtrans_getLanguage(); ?>';
function getText(text) {
  // Builds regex based on supplied language
  var re = new RegExp("<!--:" + lang + "-->(.*?)<!--:-->");

  // Returns first backreference
  return text.match(re)[1];
}
getText("<!--:fr-->Photos<!--:--><!--:en-->Pictures<!--:-->");

score 0 · Answer 3 · answered Sep 04 '21 at 22:45

As commenters from top the top asked: for strings like [:fr]french[:en]english[:] you can use the following:

function getText(mtext, lang) {
     // Builds regex based on supplied language
    var re = new RegExp("\\[:" + lang + "\\](.*?)\\[:","s");                          
    
    // Returns first backreference
    return mtext.match(re)[1];
}

How to split a language string (Wordpress qTranslate) in javascript

3 Answers3