Re^2: 'grouping' substrings?

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Re^3: 'grouping' substrings? by Anonymous Monk on Feb 01, 2006 at 16:21 UTC
Sorry to bother you again, but it doesn't seem to work. For example, the first group gives 5-16, while it should be 5-15, the second 32-45, while it should be 32-44 from what I can calculate... Are my maths poor??? Also, I can't understand what [$-[0], $+[0]] mean... Any tips ? Sorry, I'm just beggining Perl...	[reply]
Re^4: 'grouping' substrings? by kwaping (Priest) on Feb 01, 2006 at 16:25 UTC
I hope this isn't too obvious, but how about subtracting one from `$+[0]`? Updated per ikegami's reply - duh! I have a bad track record lately...	[reply] [d/l]
Re^5: 'grouping' substrings? by ikegami (Patriarch) on Feb 01, 2006 at 17:02 UTC
`--$+[0]` doesn't work ("Modification of a read-only value attempted"), but `$+[0] - 1` will.	[reply] [d/l] [select]
Re^4: 'grouping' substrings? by ikegami (Patriarch) on Feb 01, 2006 at 17:04 UTC
`[ ... ]` means "Construct an array with '...' as content, and return a reference to it." This is documented in perlref. `$-[0]` and `$+[0]` are elements of the special arrays `@-` and `@+`. Refer to perlvar for more information.	[reply] [d/l] [select]