IDE regular expressions/fr

\   Quote the next metacharacter
       ^   Match the beginning of the line
       .   Match any character (except newline). Example: 'a.c' matches 'abc', 'aBC', 'axc', 'a3c', 'a$c', etc.
       $   Match the end of the line (or before newline at the end)
       |   Alternation
       ()  Grouping. For example: (abc)+ matches 'abc' or 'abcabc' or 'abcabcabc' etc.
       []  Character class. For example [abc], [a-z], [a-zA-Z0-9_]
       [^] Reversed character class. For example [^a-z]

*      Match 0 or more times
       +      Match 1 or more times
      ???      Match 1 or 0 times
       {n}    Match exactly n times
       {n,}   Match at least n times
       {n,m}  Match at least n but not more than m times

*?     Match 0 or more times
       +?     Match 1 or more times
      ????     Match 0 or 1 time
       {n}?   Match exactly n times
       {n,}?  Match at least n times
       {n,m}? Match at least n but not more than m times

The following characters are replaced with
      . -> \.
      * -> .*
     ??? -> .
      , -> |
     ??; -> |
      
      Finally enclose by ^( )$

\. matches a point '.'
      \d matches a number character '0'..'9'
      \D matches a non number character
      \s matches a space character ' ',#9,#10,#12,#13
      \S matches a non space character
      \w matches a word character 'a'..'z','A'..'Z','0'..'9','_'
      \W matches a non word character
      \b word boundary
      \B not word boundary
      \A begin of line
      \Z end of line