2017-03-14 11:09 GMT+03:00 Kazunobu Kuriyama <vim-dev-git...@256bit.org>: > But it seems strange that we need to restrict [:cntrl:] and [:graph:] to > ASCII only. > > Quite understandable. But otherwise, we will have to either rely entirely on > the is*() functions provided by the OS in use or define our own character > classes independently of any of it. > > The former case implies that the behavior of Vim scripts using [:class:] > depends on the OS in use. Surely, the latter case is expected to resolve the > flaw of the former, but I'm not sure we can specify character classes in > such a way that almost all users on various platforms are satisfied with > them.
Normally possible conflict is resolved by pointing to the Unicode consortium: they say these code points are control characters, we follow: it is standard and it has no real competitors. Though for [:graph:] and [:print:] I would suggest pointing to how Vim draws the character: i.e. for non-whitespaces this would be something like “character is printable if `strtrans(char) is# char`” (i.e. make it like `\p`, with the whitespace difference): you mostly use these categories in relation to displaying data and I remember myself having to use `\%(\p\@!.\)` in place of simply `[^[:print:]]` at least once. Though I am not sure what is `[:graph:]` useful for. > > So, I think at the moment that the ASCII restriction is a reasonable > compromise. But I'm still quite open to other better solutions. > > — > You are receiving this because you commented. > Reply to this email directly, view it on GitHub > > -- > -- > You received this message from the "vim_dev" maillist. > Do not top-post! Type your reply below the text you are replying to. > For more information, visit http://www.vim.org/maillist.php > > --- > You received this message because you are subscribed to the Google Groups > "vim_dev" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to vim_dev+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. -- -- You received this message from the "vim_dev" maillist. Do not top-post! Type your reply below the text you are replying to. For more information, visit http://www.vim.org/maillist.php --- You received this message because you are subscribed to the Google Groups "vim_dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to vim_dev+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
