How can I use the return value of a function in a :set command?










2















I want to set an option to a string containing full path of current working directory. For example



set tags=getcwd()."tags" " retrieve the full path of the tags file in current workding directory 


However, vim seems only accept expansion for let variables, it don't expand the function in set context.



Is there way to achieve expand things in set?










share|improve this question




























    2















    I want to set an option to a string containing full path of current working directory. For example



    set tags=getcwd()."tags" " retrieve the full path of the tags file in current workding directory 


    However, vim seems only accept expansion for let variables, it don't expand the function in set context.



    Is there way to achieve expand things in set?










    share|improve this question


























      2












      2








      2








      I want to set an option to a string containing full path of current working directory. For example



      set tags=getcwd()."tags" " retrieve the full path of the tags file in current workding directory 


      However, vim seems only accept expansion for let variables, it don't expand the function in set context.



      Is there way to achieve expand things in set?










      share|improve this question
















      I want to set an option to a string containing full path of current working directory. For example



      set tags=getcwd()."tags" " retrieve the full path of the tags file in current workding directory 


      However, vim seems only accept expansion for let variables, it don't expand the function in set context.



      Is there way to achieve expand things in set?







      variables set






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 16 '18 at 11:43









      Rich

      15.2k12066




      15.2k12066










      asked Nov 16 '18 at 7:42









      Eric SunEric Sun

      182




      182




















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          9














          You can use :let with Vim options as well, by prefixing the option name with a & sigil; cp. :help :let-option



          let &tags = getcwd().'tags'


          Note that the literal string must be in single quotes (or the backslash doubled); else, the t will expand to a tab character.




          The other way would be by using :execute, but then you'd have to take care of escaping, so this is not recommended:



          execute 'set tags='.escape(getcwd(), ' ').'tags'





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            1 Answer
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            1 Answer
            1






            active

            oldest

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            active

            oldest

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            active

            oldest

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            9














            You can use :let with Vim options as well, by prefixing the option name with a & sigil; cp. :help :let-option



            let &tags = getcwd().'tags'


            Note that the literal string must be in single quotes (or the backslash doubled); else, the t will expand to a tab character.




            The other way would be by using :execute, but then you'd have to take care of escaping, so this is not recommended:



            execute 'set tags='.escape(getcwd(), ' ').'tags'





            share|improve this answer



























              9














              You can use :let with Vim options as well, by prefixing the option name with a & sigil; cp. :help :let-option



              let &tags = getcwd().'tags'


              Note that the literal string must be in single quotes (or the backslash doubled); else, the t will expand to a tab character.




              The other way would be by using :execute, but then you'd have to take care of escaping, so this is not recommended:



              execute 'set tags='.escape(getcwd(), ' ').'tags'





              share|improve this answer

























                9












                9








                9







                You can use :let with Vim options as well, by prefixing the option name with a & sigil; cp. :help :let-option



                let &tags = getcwd().'tags'


                Note that the literal string must be in single quotes (or the backslash doubled); else, the t will expand to a tab character.




                The other way would be by using :execute, but then you'd have to take care of escaping, so this is not recommended:



                execute 'set tags='.escape(getcwd(), ' ').'tags'





                share|improve this answer













                You can use :let with Vim options as well, by prefixing the option name with a & sigil; cp. :help :let-option



                let &tags = getcwd().'tags'


                Note that the literal string must be in single quotes (or the backslash doubled); else, the t will expand to a tab character.




                The other way would be by using :execute, but then you'd have to take care of escaping, so this is not recommended:



                execute 'set tags='.escape(getcwd(), ' ').'tags'






                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 16 '18 at 8:32









                Ingo KarkatIngo Karkat

                11.9k2739




                11.9k2739



























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