понятнее)
                  
                  
                  "{ 4 char a, b }"             # []
                  
                  
                  "{ 4 char a }"
                  
                  
                  "{ 4 char from a to d }"
                  
                  
                  "{ any char from a to d }"        # [a-d]
                  
                  
                  "{ any char from A to D }"        # [A-D]
                  
                  
                  "{ any char from a to d insensitive }"  # [a-zA-Z]
                  
                  
                  "{ any char from a to z insensitive }"  # [a-zA-Z]
                  
                  
                  "{ any char }"              # [a-zA-Z]
                  
                  
                  
                  
                  
                  "{ any char; number; char _ }"      # [a-zA-Z0-9_]
                  
                  
                  "{ any char; number 4-9; char _ }"    # [a-zA-Z4-9_]
                  
                  
                  
                  
                  
                  "{ not any char from a to d }"      # [^a-d]
                  
                  
                  
                  
                  
                  # Repeating
                  
                  
                  "a{ any char b, c, d }b"        # a[bcd]*b
                  
                  
                  "a{ some char b, c, d }b"        # a[bcd]+b
                  
                  
                  "a{ maybe char b, c, d }b"        # a[bcd]?b
                  
                  
                  "a{ from 4 to 5 char b, c, d }b"    # a[bcd]{4,5}b
                  
                  
                  "a{ from 4 char b, c, d }b"        # a[bcd]{4,}b
                  
                  
                  "a{ to 5 char b, c, d }b"        # a[bcd]{,5}b
                  
                  
                  
                  
                  
                  # Special characters
                  
                  
                  r"\special"                # \\special
                  
                  
                
моё почтение
Обсуждают сегодня