On Mar 30, 2014 4:19 AM, "Dmitry Frank" <[email protected]> wrote: > > Then, how can I get the symbol index (not byte offset) of a match? > > There is awesome plugin "PreciseJump": http://www.vim.org/scripts/script.php?script_id=3437 , it gets array of all symbols of the line, like that: > > let lines_with_markers[l] = split(getline(l), '\zs') > > So that here's symbol index is needed, not byte offset. Because of this, it fails if there's multi-byte chars before the match. > > Currently, it's calculated like this: > > let match_start = match(getline(l), a:re, 0, 1) > > Please suggest how to get symbol index instead.
Please define "symbol". /\zs split takes composing characters and codepoint they modify as one symbol. If this is what you want use len(split(str[: match_start-1], '\zs')). Use strchars(str[: match_start-1]) if you want them counted separately. Use strdisplaywidth() if you need count for the jump-to-virtcol (pipe) motion. > > > > 2014-03-30 4:03 GMT+04:00 Nikolay Pavlov <[email protected]>: > >> >> On Mar 30, 2014 3:35 AM, "Dmitry Frank" <[email protected]> wrote: >> > >> > Hello all. >> > >> > match() function returns index of first match, but if there are multi-byte chars before first match, then each multi-byte chars is interpreted as several chars, so, index becomes wrong. >> > >> > Say, match("foobar", "bar") returns 3, which is correct. But match("яfoobar", "bar") returns 5, which is wrong (should be 4) >> >> This is completely correct. What are you going to do with 4? "яfoobar"[4] is "o" (specifically, second one). >> >> > >> > Notice: in the latter example above, I've inserted russian letter 'я', which is multi-byte in utf-8. >> > >> > It happens when &encoding is "utf-8".I've also tested it in windows, on russian locale there's &encoding "cp1251", then match() works correctly with russian chars. So, it depends on &encoding. >> >> match() returns *byte offset*. Obviously with a single-byte encoding one character always occupies one byte. >> >> > >> > But we surely need to make match() work as expected when &encoding is "utf-8" too. >> >> Also col(), string indexing /\%Nc and so on? Not going to happen, this is incompatible change. >> >> > >> > -- >> > Regards, >> > Dmitry >> > >> > -- >> > -- >> > 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 [email protected]. >> > 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 [email protected]. >> 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 [email protected]. > 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 [email protected]. For more options, visit https://groups.google.com/d/optout.
