java - How to add text in between a sentence using regex? -

my input

<option value="" disabled selected hidden> 

the output should this:

<option value="" disabled="disabled" selected="selected" hidden=""> 

then tried code;

    final string regex_disabled = "(?<=option value=\"\" disabled)(?=.*)";     final string replace_disabled = "=\"disabled\"";     pattern disp = pattern.compile(regex_disabled);     matcher dism = disp.matcher(text);     text = dism.replaceall(replace_disabled);      final string regex_selected = "(?<==\"disabled\" selected)(?=.*)";     final string replace_selected = "=\"selected\"";     pattern selp = pattern.compile(regex_selected);     matcher selm = selp.matcher(text);     text = selm.replaceall(replace_selected);       final string regex_hidden = "(?<==\"selected\" hidden)(?=.*)";     final string replace_hidden = "=“”";     pattern hidp = pattern.compile(regex_hidden);     matcher hidm = hidp.matcher(text);     text = hidm.replaceall(replace_hidden); 

it worked since asked more simple, hoping if find useful , more simple since tried apply other ways won't work , tried searching other ways.

try this:

"<option(.*?)\\s+(disabled)\\s+(selected)\\s+(hidden)>" 

explanation

java sample

final string regex = "<option(.*?)\\s+(disabled)\\s+(selected)\\s+(hidden)>"; final string string = "<option value=\"\" disabled selected hidden>\n\n"      + "<option value=\"adfsa\" disabled selected hidden>\n\n"      + "<option value=\"111\" disabled selected hidden>\n\n\n\n"; final string subst = "<option $1 $2=\"disabled\" $3=\"disabled\" $4=\"hidden\">";  final pattern pattern = pattern.compile(regex); final matcher matcher = pattern.matcher(string);  // substituted value contained in result variable final string result = matcher.replaceall(subst);  system.out.println("substitution result: " + result);