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--- vim [2012/03/23 18:08]
k2patel [VIM Scripts]
+++ vim [2020/08/10 02:35]
@@ Line 1: / Line 1: @@
-====== VIM ======
-There's an old joke that Emacs would be a great operating system if only it had a decent text editor,\\
-whereas vi would be a great text editor if only it had a decent operating system.
-==== File Cleaning ====
-=== Remove Blank line from the file ===
-to remove blank lines please use following.
-<code bash>
-:g/^$/d
-</code>
-OR
-<code bash>
-:g/^ *$/d
-</code>
-=== Remove Tailing space as well space at beginning using VI ===
-To remove tailing space
-<code bash>
-:%s/\s\+$//
-</code>
-To remove space at beginning
-<code bash>
-:%s/^\s\+//
-</code>
-=== Replace tab with space ===
-To replace tab with space you need to use
-<code bash>
-:%s/[CTRL-i]/ /g
-</code>
-=== Delete Line start with ===
-To delete lines start with some word e.g. Redirect
-<code bash>
-:g/^Redirect/d
-</code>
-=== Remove Dos / Windows carriage-return ===
-To remove Carriage return in vi use following
-<code bash>
-:%s/^M//g
-</code>
-NOTE : to create "^M" use "Ctrl+v Ctrl+M" Regular ^M does not help.
-==== Convert all character to lower OR upper case ====
-NOTE : This will apply to whole file as we are using (%)\\
-To convert upper case use following
-<code bash>
-:%s/\([a-z]\)/\u\1/g
-</code>
-To convert lower case use following
-<code bash>
-:%s/\([A-Z]\)/\l\1/g
-</code>
-==== Match Start of line Append End of line ====
-To Match Start of line and append that line use following\\
-(search Append end of line)
-<code bash>
-%g/^DocumentRoot/s/$/\/www/
-</code>
-Which append "/www" if start of line is "DocumentRoot".
-Also you can append after word by following.
-<code bash>
-%s/word/&test/g
-</code>
-So all word is get replaced by "wordtest".
-==== Saving file as root ====
-At some point you would like to save file as root.
-<code bash>
-:w !sudo tee %
-</code>
-==== Marking ====
-<code vim>
-mk - record current location as mark k (redefines any previous mark k)
-'k - return to line of mark k
-`k - return to mark k
-d'k - delete to line of mark k
-d`k - delete to mark k
-c'k - change text to line of mark k
-c`k - change text to mark k
-"ay'd - yank text into buffer a from cursor through line of mark d
-</code>
-==== Editing ====
-<code vim>
-o - open a new line above cursor(*)
-O - open a new line below cursor(*)
-i - insert text ahead of cursor(*)
-I - insert text at the beginning of the line(*)
-a - append text after the cursor(*)
-A - append text at the end of the line(*)
-c$ - change to end of the line (*)
-d$ - delete to end of the line
-C - same as c$ (*)
-D - same as d$
-cG - change to end of the file (*)
-dG - delete to end of the file
-c0 - change to beginning of file (*)
-d0 - delete to beginning of file
-cc - change line (*)
-dd - delete line
-c'm - change from cursor through mark m (*)
-d'm - delete from cursor through mark m
-cc - change 3 lines (*)
-dd - delete 3 lines
-cw - change next 8 words (*)
-dw - delete next 8 words
-R - overwrite current line, starting at cursor(*)
-r - replace character at cursor
-s - substitute for character at cursor (*)
-s - substitute for next 8 characters (*)
-S - substitute for entire line (*)
-J - join two lines together
-. - repeats previous edit command
-xp - transpose two characters
-easESC - add a plural, and go back to command mode
-</code>
-==== Handling ====
-<code txt>
-h - move to the left
-CTL-f - change display forward a page
-j - `jump` down a line
-CTL-b - change display back a page
-k - move up a line
-CTL-d - change display down half a page
-l - move to the right
-CTL-u - change display up half a page
-- - same as k
-CTL-y - shift display down on screen
-+ - same as j
-CTL-e - shift display up on screen
-e - move to the end of a word
-z. - recenter display around cursor
-w - move forward to the beginning of a word
-z- - recenter display so cursor is at top
-b - move backward to the beginning of a word
-z+ - recenter display aso cursor is at bottom
-$ - move to the end of the line
-zCR - recenter display so cursor is at top
-- move to the beginning of the line
-'m - move to the beginning of the line of mark m
-^ - move to the beginning of the line
-`m - move to the location of mark m
-G - move to the end of the file
-) - move forward 1 sentence
-H - move to the top of the display
-( - move back 1 sentence
-M - move to the middle of the display
-} - move forward 1 paragraph
-L - move to the bottom of the display
-{ - move back 1 paragraph
-B - move back to previous blank space
-| - go to 20th character in the line
-E - move ahead to next blank space
-CTL-L - clear and redraw
-B - move back to previous blank space
-CR - same as j
-CTL-G - print current location in the file
-:22 - move to line 22
-w - move forward 6 words
-b - move backward 6 words
-+ - move down 8 lines
-</code>
-==== Play with Buffers ====
-<code txt>
-yy - yank current line to unnamed buffer
-"j8yy - yank 8 lines into buffer j
-yy - yank next 19 lines to unnamed buffer
-"J8YY - append the next 8 lines into buffer j
-p - put unnamed buffer contents after cursor
-p - recover previous edit
-P - put unnamed buffer contents before cursor
-"1p - recover 2nd previous edit
-dd - delete next 19 lines, and put them in unnamed buffer
-"7p - recover 8th previous edit
-"bp - put the contents of buffer p into current file
-:11,14 ya w - yank lines 11 through 14 into buffer w
-:94 pu w - put contents of buffer w after line 94
-</code>
-===== VIM Scripts =====
-Introduction to vim scripts  ":help vim-script-intro"\\
-== Running Vim scripts ==
-There is many way to run vim script simple way is to run calling script from `source`
-<code bash>
-:source /home/yahoo/test.vim
-</code>
-You can also call command from script directly
-<code bash>
-:call MyBackupFunc(expand('%'), { 'all':1, 'save':'recent'})
-</code>
-You can do mapping of the keyboard using the variables.
-<code bash>
-:nmap ;s :source /home/yahoo/test.vim<CR>
-</code>
-The key sequence `;s` will execute the specified script file\\
-You can call fucntion using the stored mapping same way.
-<code bash>
-:nmap \b :call MyBackupFunc(expand('%'), { 'all': 1 })<CR>
-</code>
-To call the function you need to call enter squence `\b`
-=== syntax highlighting ===
-VIM support syntax highlighting. to turn it on.
-<code bash>
-:syntax on
-</code>
-to turn it off
-<code bash>
-:syntax off
-</code>
-=== VIM Variable / Initialization (.vimrc) ===
-OR
-=== You can use .exrc ===
-== toggle syntax highlighting ==
-<code bash>
-function! ToggleSyntax()
-   if exists("g:syntax_on")
-      syntax off
-   else
-      syntax enable
-   endif
-endfunction
-nmap <silent>  ;s  :call ToggleSyntax()<CR>
-</code>
-`;s` sequence to flip syntax highlighting on or off every time typed when you're in Normal mode.\\
-nmap stands for "normal-mode key mapping".\\
-<silent>  option causes the mapping not to echo any command it's executing.
-==  Creating centered titles ==
-<code bash>
-function! CapitalizeCenterAndMoveDown()
-   s/\<./\u&/g   "Built-in substitution capitalizes each word
-   center        "Built-in center command centers entire line
-   +1            "Built-in relative motion (+1 line down)
-endfunction
-nmap <silent>  \C  :call CapitalizeCenterAndMoveDown()<CR>
-</code>
-single backslash used for continuation marker
-<code bash>
-call SetName(
-\             first_name,
-\             middle_initial,
-\             family_name
-\           )
-</code>
-Also you can use "|" to write two line on singe line.
-<code bash>
-echo "Starting..." | call Phase(1) | call Phase(2) | echo "Done"
-</code>
-You can comment using single quote, as double quote used to define a string.\\
-also you can use "|" to escape the comment in some cases.
-<code bash>
-echo "> " |"Print generic prompt
-</code>
-=== Defining variable ===
-to define variable you need to use word `let`
-<code bash>
-let name = "Damian"
-let height = 165
-let interests = [ 'Cinema', 'Literature', 'World Domination', 101 ]
-let phone     = { 'cell':5551017346, 'home':5558038728, 'work':'?' }
-</code>
-    *  scalar: a single value, such as a string or a number. For example: "Damian" or 165
-    * list: an ordered sequence of values delimited by square brackets, with implicit integer indices starting at zero. For example: ['Cinema', 'Literature', 'World Domination', 101]
-    * dictionary: an unordered set of values delimited by braces, with explicit string keys. For example: {'cell':5551017346, 'home':5558038728, 'work':'?'}
-=== Sample .vimrc ===
-<code bash>
-set number
-"       show line number
-set nocompatible
-"       This setting prevents vim from emulating the original vi's bugs and limitations.
-set autoindent
-set smartindent
-"       The first setting tells vim to use "autoindent" (that is, use the current line's indent level to set the indent level of new lines). The second makes vim attempt to intelligently guess the indent level of any new line based on the previous line, assuming the source file is in a C-like language. Combined, they are very useful in writing well-formatted source code.
-set tabstop=4
-set shiftwidth=4
-"       I prefer 4-space tabs to 8-space tabs. The first setting sets up 4-space tabs, and the second tells vi to use 4 spaces when text is indented (auto or with the manual indent adjustmenters.)
-set showmatch
-"       This setting will cause the cursor to very briefly jump to a brace/parenthese/bracket's "match" whenever you type a closing or opening brace/parenthese/bracket. I've had almost no mismatched-punctuation errors since I started using this setting.
-set guioptions-=T
-"       I find the toolbar in the GUI version of vim (gvim) to be somewhat useless visual clutter. This option gets rid of the toolbar.
-set vb t_vb=
-"       This setting prevents vi from making its annoying beeps when a command doesn't work. Instead, it briefly flashes the screen -- much less annoying.
-set ruler
-"       This setting ensures that each window contains a statusline that displays the current cursor position.
-set nohls
-"       By default, search matches are highlighted. I find this annoying most of the time. This option turns off search highlighting. You can always turn it back on with :set hls.
-set incsearch
-"       With this nifty option, vim will search for text as you enter it. For instance, if you type /bob to search for bob, vi will go to the first "b" after you type the "b," to the first "bo" after you type the "o," and so on. It makes searching much faster, since if you pay attention you never have to enter more than the minimum number of characters to find your target location. Make sure that you press Enter to accept the match after vim finds the location you want.
-"set virtualedit=all
-"       By default, vim doesn't let the cursor stray beyond the defined text. This setting allows the cursor to freely roam anywhere it likes in command mode. It feels weird at first but is quite useful.
-"       Type :help options within vim to get a complete list of options.
-highlight Comment ctermfg=green
-"       Comments are shown in a brightgreen color which is visible clearly as against a dark blue which is annoyingly hard to read to read, at least to me.
-</code>
-==== Basic Info ====
-== Variable scoping ==
-<code text>
-g: varname  	 The variable is global
-s: varname 	The variable is local to the current script file
-w: varname 	The variable is local to the current editor window
-t: varname 	The variable is local to the current editor tab
-b: varname 	The variable is local to the current editor buffer
-l: varname 	The variable is local to the current function
-a: varname 	The variable is a parameter of the current function
-v: varname 	The variable is one that Vim predefines
-</code>
-== pseudovariables ==
-<code text>
-& varname  	 A Vim option (local option if defined, otherwise global)
-&l: varname 	A local Vim option
-&g: varname 	A global Vim option
-@ varname 	A Vim register
-$ varname 	An environment variable
-</code>

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