On 2 March 2016 at 16:06, Greg Reagle <greg.rea...@umbc.edu> wrote: > Well sam has ISRE, but it lacks a nano/vi/emacs-like (full screen > interactive) TUI.
I think the key to *interactive* structural regular expressions is that it must be possible to position oneself 'within' an expression. Suppose you write x/re/, then sam will simply print all of the matching substrings, just as though you'd written x/re/p. So dot does not reflect the fact that if you added further commands then they would be performed on each of those matches. In order to be interactive, it must be possible to write the command interactively, rather than composing the whole expression in one go and sending it to the editor to evaluate. That's why multiple cursors are crucial: they allow you to collect all the matches, then to decide how to *interact* with them. So I don't agree that sam's structural regular expressions are interactive in that sense. That's my main complaint. cls
