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Vim can expand abbreviations entered while in insert mode. An abbreviation is defined by adding a line like the following to your vimrc:
iabbrev <keys> <expansion>
Replace <keys> with the letter or letters which should be expanded to <expansion>, for example:
iabbrev #i #include (typing "#i" and space will be expanded to "#include") iabbrev #d #define (typing "#d" and space will be expanded to "#define") iabbrev s struct (typing "s" and space will be expanded to "struct") iabbrev t typedef (typing "t" and space will be expanded to "typedef")
In some cases Vim expands a letter automatically that you don't want. You have to watch out for that.
When entering a word which is already in the buffer, Ctrl-P or Ctrl-N can be used to autocomplete the word currently being entered. Autocompletion does not require abbreviations to have been defined, but it only works for a word consisting of characters matching the 'iskeyword' option.
If wanted, dictionary completion can used to define words that can be autocompleted. For example, with the following settings, Ctrl-P or Ctrl-N will work with words defined in the specified dictionary file:
:set complete+=k :set dictionary+=/your/dict/file
You can put your common typos as abbreviations, for auto correction:
iabbrev teh the iabbrev seperate separate
> How cut the space from the resulted substitution?
From :help abbreviations: An exception to this is the character <C-]> (Ctrl-]), which is used to expand an abbreviation without inserting any extra characters.
:iabbrev hh hello "hh<Space>" is expanded to "hello<Space>" "hh<C-]>" is expanded to "hello"
Use getchar() to eat up that space, for example:
iabbrev <t <target name="%"></target><Esc>F%s<c-o>:call getchar()<CR>
Regarding how to eat the last typed character (when it is a space): Use :Iabbr and :Inoreabbr from script#50.
See the SuperTab plugin. It does almost all of this without the need for programming.
To eat the last space, for example, with:
iabbrev did <div id="
In insert mode, type
did then press Ctrl-]
Result: The abbreviation is expanded with no extra characters, and you are still in insert mode and can continue typing.