Is there a quick way to break a bracketed string into array, like this: 
# From
$str1 = "ATC[TG]CC";

# into 
$ans_of_str1 = [    #
                'ATCTCC',
                'ATCGCC'
               ];

[download]
Similarly..
Example 2: 
# From
$str2 = "ATCGC[ATCG]";

# into 
$ans_of_str2 = [      #
                'ATCGCA',
                'ATCGCT',
                'ATCGCC',
                'ATCGCG',
               ];

[download]
Example 3:
When there is no bracket, it returns the string itself. 
# From
$str3 = "ATCGCT";

# into 
$ans_of_str3 = [ 'ATCGCT' ];

[download]
The position of the bracket can be in any positions, and number of strings enclosed by the bracket can consist up to 4 bases, i.e. [ATCG].

Regards,
Edward

In reply to Breaking Up a Bracketed String by monkfan

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