This page is part of the web mail archives of SRFI 13 from before July 7th, 2015. The new archives for SRFI 13 contain all messages, not just those from before July 7th, 2015.
This is silly. If you really need the extra speed, then use a Scheme implementation with shared substrings, or another language (such as C). Not an option for a portable library. We've been through this. > ms> However, I have a compromise idea. Instead of the optional START > ms> and END parameters, allow using a list '(s start end) instead of > ms> the string parameter. > >I'm not sure I understand how this is a win over the optional >start/end parameters, The advantage is that you can store the string with the indices as one (conceptual) unit, thus making the program code easier to maintain and less error-prone. You are simply re-inventing a form of shared-text strings, but one that is particularly inefficient and that has poor error-checking properties. This I do not want to do. Please don't destroy the nice high-level Scheme language with these exaggerated low-level optimazion efforts. Try this: just ignore those optional parameters and you'll have the interface you want. -Olin