Regex to match string containing two names in any order

Question

I need logical AND in regex   something like   jack AND james  agree with following strings    hi jack here is james   hi james here is jack

User · Answer

Try   james  jack   If you want both at the same time  then or them   james  jack jack  james

User · Answer

Its short and sweet      jack      james    Test Cases   x000D   x000D       xxx james xxx jack xxx      jack xxx james       jack xxx jam         jam and jack      jack      james      forEach s   gt  console log       james      jack   test s     x000D   x000D   x000D

User · Answer

Vim has a branch operator   amp  that is useful when searching for a line containing a set of words  in any order  Moreover  extending the set of required words is trivial   For example      jack  amp   james  will match a line containing jack and james  in any order   See this answer for more information on usage   I am not aware of any other regex flavor that implements branching  the operator is not even documented on the Regular Expression wikipedia entry

User · Answer

Explanation of command that i am going to write -    means any character  digit can come in place of      means zero or more occurrences of thing written just previous to it     means  or    So   james  jack   would search james    then any number of character until jack comes   Since you want either jack  james or james  jack  Hence Command   jack  james james  jack

User · Answer

You can do    bjack b   bjames b  bjames b   bjack b

User · Answer

You can make use of regex s quantifier feature since lookaround may not be supported all the time    bjames b  1      bjack b  1     bjack b  1      bjames b  1

User · Answer

The expression in this answer does that for one jack and one james in any order  Here  we d explore other scenarios  METHOD 1  One jack and One james Just in case  two jack or two james would not be allowed  only one jack and one james would be valid  we can likely design an expression similar to         bjack b   bjack b       bjames b   bjames b       bjames b       bjack b      Here  we would exclude those instances using these statements        bjack b   bjack b   and        bjames b   bjames b   RegEx Demo 1 We can also simplify that to         bjack b   bjack b    bjames b   bjames b       bjames b    bjack b      RegEx Demo 2  If you wish to simplify update explore the expression  it s been explained on the top right panel of regex101 com  You can watch the matching steps or modify them in this debugger link  if you d be interested  The debugger demonstrates that how a RegEx engine might step by step consume some sample input strings and would perform the matching process   RegEx Circuit jex im visualizes regular expressions   Test  x000D   x000D  const regex           bjack b   bjack b    bjames b   bjames b       bjames b    bjack b     gm  const str    hi jack here is james hi james here is jack hi james jack here is jack james hi jack james here is james jack hi jack jack here is jack james hi james james here is james jack hi jack jack jack here is james    let m   while   m   regex exec str       null           This is necessary to avoid infinite loops with zero-width matches     if  m index     regex lastIndex            regex lastIndex                      The result can be accessed through the  m -variable      m forEach  match  groupIndex    gt            console log  Found match  group   groupIndex     match               x000D   x000D   x000D    METHOD 2  One jack and One james in a specific order The expression can be also designed for first a james then a jack  similar to the following one         bjack b   bjack b    bjames b   bjames b       bjames b   bjack b      RegEx Demo 3 and vice versa         bjack b   bjack b    bjames b   bjames b       bjack b   bjames b      RegEx Demo 4

User · Answer

You can do checks using lookarounds          bjack b       bjames b       Test it   This approach has the advantage that you can easily specify multiple conditions          bjack b       bjames b       bjason b       bjules b

[regex] Regex to match string containing two names in any order

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