Re: Go to start of visual selection
Andy Wokula schrieb: Tim Chase schrieb: How can I move the cursor the start of the visual selection? With the o command, yes. But how can I make sure the cursor is at the start while visual mode is on? The ` motion followed by gv sets the cursor back to the end if it was there. I think it sounds like you want something like the following: vnoremap gt esc`:exec 'norm '.visualmode().'`lt'cr vnoremap gb esc`lt:exec 'norm '.visualmode().'`'cr which gives you a Go to the Top and Go to the Bottom mapping within visual mode. It can be a little funky in blockwise visual-mode, if your ' and ' points are top-right and bottom-left (rather than top-left and bottom-right), as the top will go to the top-right, not the top-left. I haven't figured out a good way to do this without considerably more code in the mapping (save the column of ' and then gvO to go back to visual-mode but in the other corner and then compare the columns to see which you want, perhaps needing to switch back...it's ugly). However, it should work fine in character-wise and line-wise visual modes. HTH, -tim I don't understand why this works. There must be a difference between `v` and :normal `v` v defines a new visual area and overwrites the `,` markers. Why does ` after :normal move the cursor to the start of the _previously_ selected visual area? Thx, Andy Ah, with a later Vim7 there is no difference any more. Obviously this has been fixed with patch 125, dated August 2006. Ok, this took three months till I got it ... -- Regards, Andy
Re: Go to start of visual selection
vnoremap gt esc`:exec 'norm '.visualmode().'`lt'cr vnoremap gb esc`lt:exec 'norm '.visualmode().'`'cr I don't understand why this works. There must be a difference between `v` and :normal `v` v defines a new visual area and overwrites the `,` markers. Why does ` after :normal move the cursor to the start of the _previously_ selected visual area? Sorry it's taken me a while to get back on this...life got a little crazy. Buried away in the help just above :help :map-verbose and in the section :help map-listing one finds this little morsel of help: Note: When using mappings for Visual mode, you can use the ' mark, which is the start of the last selected Visual area in the current buffer |'|. It's also possible to read the help at :help ' either way, as it refers to the last selected visual area which in visual-mode could mean either the area selected before the the one I'm currently in, or the current visual selection which is now the 'last selected visual area' because I'm now doing something other than selecting. It might help to have an extra sentence at this help to say something like If you are currently in visual mode, this refers to the beginning/end of the *previous* visual selection Hope this helps shed light on your question rather than muddy the waters. -tim
Re: Go to start of visual selection
Tim Chase schrieb: How can I move the cursor the start of the visual selection? With the o command, yes. But how can I make sure the cursor is at the start while visual mode is on? The ` motion followed by gv sets the cursor back to the end if it was there. I think it sounds like you want something like the following: vnoremap gt esc`:exec 'norm '.visualmode().'`lt'cr vnoremap gb esc`lt:exec 'norm '.visualmode().'`'cr which gives you a Go to the Top and Go to the Bottom mapping within visual mode. It can be a little funky in blockwise visual-mode, if your ' and ' points are top-right and bottom-left (rather than top-left and bottom-right), as the top will go to the top-right, not the top-left. I haven't figured out a good way to do this without considerably more code in the mapping (save the column of ' and then gvO to go back to visual-mode but in the other corner and then compare the columns to see which you want, perhaps needing to switch back...it's ugly). However, it should work fine in character-wise and line-wise visual modes. HTH, -tim I don't understand why this works. There must be a difference between `v` and :normal `v` v defines a new visual area and overwrites the `,` markers. Why does ` after :normal move the cursor to the start of the _previously_ selected visual area? Thx, Andy -- kühl, @vim.org ist wieder zurück EOF ___ Der frühe Vogel fängt den Wurm. Hier gelangen Sie zum neuen Yahoo! Mail: http://mail.yahoo.de
Re: Go to start of visual selection
Tim Chase schrieb: How can I move the cursor the start of the visual selection? With the o command, yes. But how can I make sure the cursor is at the start while visual mode is on? The ` motion followed by gv sets the cursor back to the end if it was there. I think it sounds like you want something like the following: vnoremap gt esc`:exec 'norm '.visualmode().'`lt'cr vnoremap gb esc`lt:exec 'norm '.visualmode().'`'cr which gives you a Go to the Top and Go to the Bottom mapping within visual mode. It can be a little funky in blockwise visual-mode, if your ' and ' points are top-right and bottom-left (rather than top-left and bottom-right), as the top will go to the top-right, not the top-left. I haven't figured out a good way to do this without considerably more code in the mapping (save the column of ' and then gvO to go back to visual-mode but in the other corner and then compare the columns to see which you want, perhaps needing to switch back...it's ugly). However, it should work fine in character-wise and line-wise visual modes. HTH, -tim Works fine at least for character-wise visual mode, thanks! :-) IMHO, this little basic feature should be included in Vim. Regards, Andy -- EOF ___ Telefonate ohne weitere Kosten vom PC zum PC: http://messenger.yahoo.de
Go to start of visual selection
How can I move the cursor the start of the visual selection? With the o command, yes. But how can I make sure the cursor is at the start while visual mode is on? The ` motion followed by gv sets the cursor back to the end if it was there. Thx, Andy -- EOF ___ Der frühe Vogel fängt den Wurm. Hier gelangen Sie zum neuen Yahoo! Mail: http://mail.yahoo.de
Re: Go to start of visual selection
How can I move the cursor the start of the visual selection? With the o command, yes. But how can I make sure the cursor is at the start while visual mode is on? The ` motion followed by gv sets the cursor back to the end if it was there. I think it sounds like you want something like the following: vnoremap gt esc`:exec 'norm '.visualmode().'`lt'cr vnoremap gb esc`lt:exec 'norm '.visualmode().'`'cr which gives you a Go to the Top and Go to the Bottom mapping within visual mode. It can be a little funky in blockwise visual-mode, if your ' and ' points are top-right and bottom-left (rather than top-left and bottom-right), as the top will go to the top-right, not the top-left. I haven't figured out a good way to do this without considerably more code in the mapping (save the column of ' and then gvO to go back to visual-mode but in the other corner and then compare the columns to see which you want, perhaps needing to switch back...it's ugly). However, it should work fine in character-wise and line-wise visual modes. HTH, -tim
Re: Go to start of visual selection
Tim Chase wrote: How can I move the cursor the start of the visual selection? With the o command, yes. But how can I make sure the cursor is at the start while visual mode is on? The ` motion followed by gv sets the cursor back to the end if it was there. I think it sounds like you want something like the following: vnoremap gt esc`:exec 'norm '.visualmode().'`lt'cr vnoremap gb esc`lt:exec 'norm '.visualmode().'`'cr which gives you a Go to the Top and Go to the Bottom mapping within visual mode. Won't they move the boundary of the visual area together with the cursor? It can be a little funky in blockwise visual-mode, if your ' and ' points are top-right and bottom-left (rather than top-left and bottom-right), as the top will go to the top-right, not the top-left. I haven't figured out a good way to do this without considerably more code in the mapping (save the column of ' and then gvO to go back to visual-mode but in the other corner and then compare the columns to see which you want, perhaps needing to switch back...it's ugly). However, it should work fine in character-wise and line-wise visual modes. HTH, -tim Best regards, Tony.
Re: Go to start of visual selection
vnoremap gt esc`:exec 'norm '.visualmode().'`lt'cr vnoremap gb esc`lt:exec 'norm '.visualmode().'`'cr which gives you a Go to the Top and Go to the Bottom mapping within visual mode. Won't they move the boundary of the visual area together with the cursor? Not from my testing... [ed: a hush falls over the mailing-list...Tim actually tested this response?! :) ] Perhaps a diff. setting between our setups if you're experiencing drifting? Other than the peculiar caveat regarding blockwise visual mode, it worked for me. Even in blockwise mode, it successfully went to the top, but wasn't always the top-*left* anchor. Note that the and marks are jumped-to with the back-tick (rather than a regular apostrophe) which remembers column information as well, so when gt is run/expanded/executed, it 1) leaves visual mode 2) jumps to the exact anchor position of the bottom/top mark 3) enters the previous visual-mode as returned by the visualmode() function 4) and then jumps to the previous exact anchor position of the top/bottom mark -tim
Re: Go to start of visual selection
On Thu 1-Feb-07 11:51am -0600, Tim Chase wrote: vnoremap gt esc`:exec 'norm '.visualmode().'`lt'cr vnoremap gb esc`lt:exec 'norm '.visualmode().'`'cr Why do you use `lt instead of just ` ? Just a matter of preference? -- Best regards, Bill
Re: Go to start of visual selection
vnoremap gt esc`:exec 'norm '.visualmode().'`lt'cr vnoremap gb esc`lt:exec 'norm '.visualmode().'`'cr Why do you use `lt instead of just ` ? Just a matter of preference? Depending on what follows the ` vim may try to interpret it as a character-notation. I prefer not to have to think about it, so just like with HTML entities when I write HTML, it's now hard-wired that, when writing mappings, I use lt (and I get stung enough with | vs. bar that I tend to err on the side of using the notation when I don't have to, just so I don't have to burn brain-cells thinking about it case-by-case. -tim
Re: Go to start of visual selection
Hi Bill, On 2/1/07, Bill McCarthy [EMAIL PROTECTED] wrote: On Thu 1-Feb-07 11:51am -0600, Tim Chase wrote: vnoremap gt esc`:exec 'norm '.visualmode().'`lt'cr vnoremap gb esc`lt:exec 'norm '.visualmode().'`'cr Why do you use `lt instead of just ` ? Just a matter of preference? The following text describing when to use lt in a map is taken from the Vim keymap tutorial which is available at: http://www.geocities.com/yegappan/vim_keymap.html When Vim parses a string in a map command, the \... sequence of characters is replaced by the corresponding control character. For example, let us say in insert mode you want the down arrow key to execute C-N when the insert complete popup menu is displayed. Otherwise, you want the down arrow key to move the cursor one line down. You can try the following command (which doesn't work): :inoremap Down C-R=pumvisible() ? \C-N : \DownCR When parsing the above command, Vim replaces C-N and Down with the corresponding control characters. When you press the down arrow in insert mode, as there are control characters in the expression now, the command will fail. To fix this, you should escape the character, so that Vim will not replace \C-N with the control character when parsing the command. The following command works: :inoremap Down C-R=pumvisible() ? \ltC-N : \ltDownCR With the above command, Vim will use the control character only when the map is invoked and not when the above command is parsed. If the flag 'B' is present in 'cpoptions', then the backslash character is not treated as a special character in map commands. For example, let us say you want to create an insert-mode map for the F6 key to insert the text Press Home to go to first character. For this, you can try using the following command: imap F6 Press Home to go to first character When you press F6 in the insert mode, the Home in the above map will cause Vim to move the cursor to the first character in the line and insert the reminder of the text there. To literally enter the text Home, you need to escape it: imap F6 Press \Home to go to first character If the flag 'B' is not present in 'cpoptions', then the above map command will insert the correct text. If the flag 'B' is present, then the backslash character is not treated as a special character and the above map will not insert the correct text. To treat Home literally independent of the 'cpoptions' setting, you can use the following command: imap F6 Press ltHome to go to first character In the above command, the notation lt is used for in Home. - Yegappan
