I can't "open a bug" (bugzilla is very confusing for me) and I don't know how to browse old proposals/requests, so I feel better to post here two ideas, just to let you revise them and - if you like - to go on into bugzilla.
1. I'd like to have a {{nbsp:string}} function, to replace all spaces with html entities into string. It would very useful to format table cell content where spaces must be avoided, while saving the original string.
2. I'd like to generalize {{#titleparts:string}} transforming it into a general str.split() function something like {{split:string|char}} where string is the string to split, and char is the splitting character). I use a lot #titleparts as a "string-splitter", and I can manage difficult issues with ease (i.e.: how to pass multiple values into a single parameter of a template) but sometimes I'd like to use a character different from / (i.e. splitting a list of page/subpage names).
Alex