2 normal mode

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• Vim The natural relaxation state of
• The whole book talks about how to use common patterns
  • This chapter only deals with some core concepts
  • General skills

 

• Other editors spend most of the time Vim Insertion mode

 

• Many normal mode commands are executed with a specified number of times

• skill 10

  • A pair of commands for adding and subtracting values
  • And you'll see how these two commands are combined with the number of times , Do simple arithmetic operations

• Specifying the number of times to execute can reduce the number of keys

• You'll see some examples ,

  • Simply repeat a command ,
  • It's better than taking the time to figure out how many times you want to execute

 

• The power of normal mode commands ,
  • Largely because it can combine operators with action commands .
• At the end of this chapter , We're going to see the effect of this combination .

skill 7 Please move the brush when you pause

• Painters don't put their brushes on the canvas when they're resting .
• Yes Vim It's the same thing about it , The normal pattern is Vim The natural relaxation of

 

• Painters spend only a small part of their time painting
• Programmers also spend only a fraction of their time writing code
• Most of the time I think about 、 read , And shuttling through the code
• When you really want to modify , Who said you had to switch to insert mode ？
• We can reformat the existing code , Copy them , Move its position , Or delete them
• In normal mode , There are many tools to use

skill 8 Cut the undo unit into blocks

• u Undo the latest changes
• A modification can be any operation that changes the text within the document ,
  • Included in the normal mode 、 Commands triggered in visual mode and command line mode
  • And a modification also includes input in insert mode （ Or delete ） The text of ,
  • i{insert some text} It's a modification

 

• In a schema insensitive text editor , Enter some words and use the undo command ,
  • There are two possibilities .
  • Undo the last character entered ;
  • The other is better , It may break characters into blocks , Make each undo delete a word instead of a character .

 

• Vim You can control the granularity of undo commands
• Start with insertion mode ,
  • To return to normal mode ,
  • Anything entered or deleted during this period is treated as a modification
• As long as it's under control <Esc> Use
  • You can make the undo command work on the word 、 A sentence or paragraph .

 

• How often should you leave insert mode ？
• I like
  • Every “ Revocable block ” Corresponding to a thinking process
• In writing this passage （ Of course is in Vim Write in ）,
  • I often end with a pause ,
  • What do you want to write next
• No matter how short the pause is ,
  • It's a natural break point ,
  • It's time for me to quit plug-in mode .
• When you're ready to continue writing , Press A Just go back to where you were and continue

 

• If I think I'm going in the wrong direction , I switch to normal mode , Then press u
• Every time you do undo , The words follow the way I first wrote , Cut into well-organized pieces , That means I can easily try to write a sentence or two , If it doesn't feel right , You can discard it by pressing a key or two .

 

• When in insert mode ,
  • If the cursor is at the end of the line , The fastest way to start another line is to press .
• Sometimes I prefer to press o ,
  • Because I have a hunch , Maybe I want to have a finer granularity in undo
  • It doesn't sound very understandable , When you are right Vim More and more familiar with , It's easier to switch modes .

 

• If you pause long enough to ask “ Should I quit insert mode ？” This problem ,
  So quit .
  

Moving the cursor in insert mode resets the modification state

• The undo command reverses the input from entering insert mode to exiting this mode （ Or delete ） When all the characters of ,
• I've missed a little detail .
• If you use 、 、
  or These cursor keys , A new undo block will be generated .
  
• You can think of it as switching back to normal mode first ,
  • And then use h 、 j 、 k or l Command to move the cursor ,
  • The only difference is that we're not out of insert mode .
  • That would be right . The operation of the command has an impact .