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[timothy]

Frage:

Ein string lautet "abcdefghijklmnopqrstuvwxyz"

Wie kann man jetzt z.B. in PERL sagen, daß man aus vorgenannten string, nur x Stellen ausgeben kann.

Hi Boris,

mit der Funktion substr.

lt. "Perl in a nutshell":

substr

substr string, pos, [n, replacement]

Extracts and returns a substring n characters long, starting at character position pos, from a given string. If pos is negative, the substring starts that far from the end of the string instead. If n is omitted, everything to the end of the string is returned. If n is negative, the length is calculated to leave that many characters off the end of the string.

You can use substr() as an lvalue - replacing the delimited substring with a new string - if string is given as an lvalue. You can also specify a replacement string in the fourth parameter to replace the substring. The original extracted substring is still returned.

By
Timothy