On Tue, Nov 8, 2016 at 1:22 PM, A. S. Budden <[email protected]> wrote: >> On 1 November 2016 at 17:00, 李哲 <[email protected]> wrote: >>> As the pic say~ >>> >>> I find a blank char in my file but I can't match it by \s+, I want to >>> delete it, what should I do? > On 8 November 2016 at 10:01, Yongwei Wu <[email protected]> wrote: >> Put the cursor over the character and type "g8". >> >> :help g8 >> >> 8 Print the hex values of the bytes used in the >> character under the cursor, assuming it is in |UTF-8| >> encoding. This also shows composing characters. The >> value of 'maxcombine' doesn't matter. >> Example of a character with two composing characters: >> e0 b8 81 + e0 b8 b9 + e0 b9 89 ~ >> {not in Vi} {only when compiled with the |+multi_byte| >> feature} > > The above is probably the best way to find out what it is; if you want > to delete all instances of it, one way that has worked for me in the > past is: > > * Put the cursor on the character > * Press y<space> to "yank" it into the unnamed register > * Type :%s/<C-R>"//g (where <C-R>" means press Ctrl & R together and > then press shift-2 or whatever combination on your keyboard gives a > double-quote) - this pulls the unnamed register content into the > command line > > You can also use the output of g8 with: > > %s/\%uXXXX//g (where XXXX is the hex code shown by g8) - see :help \%u > for more info > > Al
For %u you need the Unicode codepoint (the hex part of the output of ga) not the individual byte values (as shown by g8). They are different for every codepoint above U+007F, and if it were ASCII (i.e. lower than U+0080) the OP wouldn't asking "What is that strange blank character?" Best regards, Tony. -- -- You received this message from the "vim_use" 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_use" 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.
