Re^2: Efficient walk/iterate along a string

[DrHyde]

Please do this - I've occasionally had to solve similar problems, and thought "this is where perl needs pointers", but never had the tuits to actually implement it.

[Anonymous Monk]

I throw links at you :)
• String::Index - Perl XS module for strpbrk()/index() hybrids
• Pointer - Object Oriented Memory Pointers in Pure Perl
• PeekPoke - Perl extension for reading and writing memory
• Pack/Unpack Tutorial (aka How the System Stores Data)
• Algorithm Showdown: Fuzzy Matching
• Regexes are slow (or, why I advocate String::Index)
• To read Char-by-Char from a file

[GrandFather]

I suspect that if there was a real need for this and an XS solution does actually provide substantial speed gains over substr or the reverse and chop trick then it'd have already been done.

Most times a smarter algorithm gives much more bang for the buck than tinkering with an implementation to make the old algorithm a little faster.