javascript - find/get specific strings between strings -

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suppose, have string this

"lorem ipsum dolor sit amet, [b]consectetur adipisici elit[/b], sed eiusmod tempor [i]incidunt ut labore[/i] et [size =12]dolore [/size=12] magna aliqua"

i like lorem ipsum dolor sit amet, consectetur adipisici elit, sed eiusmod tempor incidunt ut labore et dolore magna aliqua". not question.

question: how strings between [b]...[\b] , [i] ..[/i] or string between [size=12].. [/size=12] in textarea, when append div? text between [b][/b] should become bold, between [i][/i] should become italic , text between [size][/size] should font size...

you need 2 separated pattern:

to between [b] , [\b]:

\[b\](.*?)\[\/b\] 

var str = "lorem ipsum dolor sit amet, [b]consectetur adipisici elit[/b], sed eiusmod tempor [i]incidunt ut labore[/i] et dolore magna aliqua";  var result = /\[b\](.*?)\[\/b\]/.exec(str);  document.write(result[1]);

to between [i] , [/i]:

\[i\](.*?)\[\/i\] 

var str = "lorem ipsum dolor sit amet, [b]consectetur adipisici elit[/b], sed eiusmod tempor [i]incidunt ut labore[/i] et dolore magna aliqua";  var result = /\[i\](.*?)\[\/i\]/.exec(str);  document.write(result[1]);

also if need replace content, try this:

    var str = "lorem ipsum dolor sit amet, [b]consectetur adipisici elit[/b], sed eiusmod tempor [i]incidunt ut labore[/i] et dolore magna aliqua";      var result = str.replace(/\[b\]|\[\/b\]/g,'**').replace(/\[i\]|\[\/i\]/g,'*');      document.write(result);


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