:set term=$TERM.new :set path=/usr/$INCLUDE,$HOME/include. That character and what follows isĪppended to the value of the environment variable. Any non-id character (not a letter, digit or ' _') mayįollow the environment variable name. If it does not exist the ' $' and the nameĪre not modified. If theĮnvironment variable exists the ' $' and the following environment variable * :set_env* * expand-env* * expand-environment-var*Įnvironment variables in specific string options will be expanded. The value " ab", using "set guioptions-=ba" won't work, because the string "ba" Note that you should add or remove one flag at a time. This removes the ' a' flag from 'guioptions'. Option, without changing the existing ones, you can do it like this: * add-option-flags* * remove-option-flags* Result which is probably not what you want. Halved and when you expect the backslashes to be kept. This makes sure it works both when you expect backslashes to be :set dir=\\machine\path results in "\\machine\path" :set dir=\\\\machine\\path results in "\\machine\path" :set dir=\\path\\file results in "\\path\file" (wrong!)įor the first one the start is kept, but for the second one the backslashesĪre halved. There is one special situation, when the value starts with "\\": But a backslash before a special character (space, backslash, comma, Variables are expanded) a backslash before a normal file name character is not Precise: For options that expect a file name (those where environment This example sets the 'titlestring'įor MS-DOS and WIN32 backslashes in file names are mostly not removed. Similarly, the double quote character starts a comment. This sets the 'titlestring' option to "hi" and 'iconstring' to "there": Include the "|" in the option value, use "\|" instead. The "|" character separates a " :set" command from a following command. :set tags=tags\ /usr/tags results in "tags /usr/tags" :set tags=tags\\,file results in "tags\,file" :set tags=tags\\\ file results in "tags\ file" Means that the number of backslashes in an option value is halved (rounded To include a backslash you have to use two. To include white space in a string option value it has to be preceded with aīackslash. "set all" probably does not fit on the screen, causing Vim to give the Long string options are putĪt the end of the list. The listing from " :set" looks different from Vi. The t_xx options cannot be set from a | modeline| or in the | sandbox|, for :set t_kb= :set t_kb E846: Key code not set: t_kb When a key code is not set, it's like it does not exist. There is no warning for using a name that isn't recognized. The advantage over a mapping is that it works in all situations. (the ^[ is a real here, use CTRL-V to enter it) This can also be used to translate a special code for a normal key. The "xx" part contains special characters, use the form: :se the form "t_xx" may be used to set a terminal option. Key codes are not shown, because they are generated :se Show all options that differ from their default value. These options come in three forms:īoolean can only be on or off * boolean* * toggle* Vim has a number of internal variables and switches which can be set toĪchieve special effects. Automatically setting options | auto-setting|įor an overview of options see help.txt | option-list|. Vim documentation: options main help file
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