split-like thing

[john]

Hi,

If I have a string "abcdefgh", what's the best way to get an array with
the characters in pairs? ("ab", "cd", "ef", "gh")

Thanks!

 

[Frank Seitz]

If I have a string "abcdefgh", what's the best way to get an array with
the characters in pairs? ("ab", "cd", "ef", "gh")

(@arr) = $str =~ /(..)/g;

Frank

 

[Frank Seitz]

If I have a string "abcdefgh", what's the best way to get an array with
the characters in pairs? ("ab", "cd", "ef", "gh")

@arr = $str =~ /(..)/g;

Frank

 

[sln]

@arr = $str =~ /(..)/g;

^ ^
Don't need to capture the whole pattern, that is the default in list context,
otherwise subpatterns as such will get it: @arr = $str =~ /.(.)/g;

This also works as well:
@arr = $str =~ /.{2}/g;

-sln

 

[Frank Seitz]

^ ^
Don't need to capture the whole pattern, that is the default in list context,
otherwise subpatterns as such will get it: @arr = $str =~ /.(.)/g;

Thank you for the improvement.

This also works as well:
@arr = $str =~ /.{2}/g;

TMTOWTDI

Frank

 

[Lars Eighner]

Hi,

If I have a string "abcdefgh", what's the best way to get an array with
the characters in pairs? ("ab", "cd", "ef", "gh")

sed

 

[News123]

sed

Neither
echo "abcdefgh" | sed
nor
echo "abcdefgh" | perl -e 'sed'

returns the expected result. ;-)

Just for fun" Could you show me how to do it with sed?

 

[smallpond]

sed

sed does not have an array data type. awk would be better,
although regexp are not as powerful as perl's.