Notes on Vim

I sorted out Vim notes and filled the gaps in China in some aspects-it's about tabs and spaces (background sound: You can throw tomatoes ).

 

1. Open the horizontal scroll bar.
A, set guioptions + = B # (bottom scrollbar)
B, set nowrap

2. scrolling
A, a row [down: ctrl + e, up: ctrl + y (Win32 + p)]
B, half screen [down: ctrl + d, up: ctrl + u]
C. Full Screen [down: ctrl + f, up: ctrl + B]

3. Move the rows on the screen (valid for auto-discount rows)
A. Move down a line of gj on the screen
B. Move up the gk line of the screen

4. Enter the Visual (select) mode.
A, single character [v]
B, the whole line [shift + v]
C, Block [Win32: ctrl + q, Unix: ctrl + v]

5, fold
A. Create a line -- [zf {motion}]
B. Open -- [zo] to open all nested rows -- [zO] to open all rows -- [zR]
C, fold -- [zc] Fold the hidden line -- [zC] Fold all the lines -- [zM]
D. Delete -- [zd] delete all rows (valid only for the first line of the line) -- [zD]
E. Show the left-side line mark: set foldcolumn = 4

6. display the control character [help listchars]
A, set listchars = tab:>-, eol: $, trail :-
B, trick & tips: using searching hightline:
B, 1: [/\ t] -- show tabs.
B, 2: [/\ s \ + $] -- show trailing whitespace.
B, 3: [/\ + \ ze \ t] -- show spaces before a tab.

7. display the row number
A, set number
B, set nonumber

8. character width control
A. number of characters displayed per line: textwidth = 72
B. Number of characters occupied by indentation: shiftwidth = 2 | increase the indentation of the current row (filled with spaces):>
C. Number of characters in a Tab: tabstop = 4
B .1, tabstop -- (display angle) the length of a tab (binary encoding: 0x09 at the underlying layer );
B .2, softtabstop -- vim indicates the total number of spaces (0x20) that must be completed when the tab key is pressed ).
For example, when softtabstop is 4,
> When there is one space before the cursor, you press tab to add three spaces to complete four spaces;
> When there are two spaces before the cursor, you press tab to add two spaces to complete the four spaces.
> If there are four spaces before the cursor, you do not need to complete them. Continue to the next round and find that there are only 0 spaces, so there are 4 spaces at a time. -- It is equivalent to four Space key connections.
Note (Key Point): When you press softtabstop to complete the number of spaces (including the preceding spaces), you can generate a tab, vim automatically converts all leading spaces to the width of tabstop (0x20 for each tabstop width) to a tab (0x09) character.
B .3, expandtab -- convert a tab to a space (expand the tab as blankspaces where you are typing, the amount of expanding based on settings of softtabstop/tabstop)
B .4, retab {number} -- Re-calculate the tab based on the number (the spaces around the tab are also included ),
For example, if the current tabstop is 8, you perform two actions when you [retab 2:
> Step 1: Split a tab (Originally 8 characters) into four tabs (now 2 Characters for tab ).
> Step 2: Set tabstop to 2.

9. view the file in binary mode.
A, %! Xxd -- the entire file (%) dump is in binary format
B, %! Xxd-r -- reverse the file to the original format

10. Auto-completion
A, I _CTRL_P -- Previous Match, I _CTRL_N -- Next Match
B, I _CTRL_X (entering the completion mode) + CTRL_O

11, special characters
A, I _CTRL_V + {special char} Or I _CTRL_V + {digits} [CTRL_Q instead of CTRL_V in Win32]
B, weird symbol (fit word, Digraphs) I _CTRL_K + {digraphs} |: digraphs -- Show all of digraphs
C. view the character encoding under the current cursor [ga]

12. Compare the buffer zone with the original file-display the changes that have been made
A, DiffOrig

13. addition and subtraction
A, addition: {count} CTRL + A -- add the number under the cursor to count. (unmap is used in Win32 to cancel the "select all" function of CTRL +)
B, subtraction: {count} CTRL + X

14. case-sensitive Conversion
A, rule -- Current Character guw -- current word
B, rule -- Current Character gUw -- current word

15. Virtual editing
A, set virtualedit = all -- you can move the cursor to any position (column) in a row ).
Note: if this is not a blank line (blank line & empty line), the cursor automatically returns to the end of the line.
> If you want to avoid this problem, you can use r to replace it. All the spaces from the replacement to the cursor position are automatically filled with spaces.
B. Virtual replacement: gr or gR (entering the virtual replacement mode) -- allows the replaced character to occupy the proper space, which is particularly useful when replacing the tab (0x09.

16. Fast Moving
A, f + {character} looks for a character forward (parked on this character)
B, F + {character} searches for a character (parked on this character ).

17. Jump cursor
A, ''(two delimiters) return to the previous position. Note: commands such as w, B, and fx cannot be considered jumps.
B, CTRL_O jump back (older)
C, CTRL_ I jump forward

18. Movement in the program
A, [+ {-- this block header, [+/-- This annotation header, [+ m -- this function Header
B,] + {-- end of the block,] +/-- end of the comment,] + m -- end of the Function

19. format the program code.
A, = current row, gg = G entire file
B. Auto indent by file type: filetype indent on

20. format the text.
A, set textwidth = 78
B, gggqG -- format the entire document

21. Delete empty rows.
A,: g/^ $/d -- delete empty rows
B,: g/\ s \ +/d -- Delete trailing whitespace.

22. variables in the Vim script
A. Special variables in the script
$ NAME environment variable NAME
& Name options in Vim (such as ts and sw)
@ Name Register name in Vim
B. variable scope identifier
Name Function
B: The name is partial to a buffer zone.
W: name is partial to a window
G: name global variable
V: name Vim pre-defined variable

99. Solution for occupying the corresponding key combinations in Windows
A, unmap {<C-A >}-- Disable CTRL + A (all selected) in Windows.

# Vim: set shiftwidth = 2 foldmethod = indent tabstop = 8 :#