Question

I need help to replace all \n (new line) caracters for
in a String, but not those \n inside [code][/code] tags. My brain is burning, I can’t solve this by my own 🙁

Example:

test test test test test test test test  [code]some test code [/code]  more text 

Should be:

test test test<br /> test test test<br /> test<br /> test<br /> <br /> [code]some test code [/code]<br /> <br /> more text<br /> 

Thanks for your time. Best regards.

Answer 1

I would suggest a (simple) parser, and not a regular expression. Something like this (bad pseudocode):

stack elementStack;  foreach(char in string) {     if(string-from-char == '[code]') {         elementStack.push('code');         string-from-char = '';     }      if(string-from-char == '[/code]') {         elementStack.popTo('code');         string-from-char = '';     }      if(char == '\n' && !elementStack.contains('code')) {         char = '<br/>\n';     } }