On Monday, March 18, 2013 5:39:14 PM UTC-5, FlashBurn wrote:
> I want to create a list of files that my project is using. This list will be
> stored in a file and subsequently will be used by cscope.
>
OK, so the task is to write to a file.
> Here is what I have so far:
>
> function! BuildFileList()
> s:dir_list = ['dir1', 'dir2', 'dir3']
> s:output_file = 'cscope.files'
> redir! > s:output_file
Here other responses have assumed you are wanting to write to a variable. But,
you've said you want to write to a file. So your problem is the classing
"didn't realize you can't use variables on the cmd line" problem. To use a
variable name in most ex commands, you need to build a string and then execute
it rather than inserting the variable name directly. In your case, like this:
execute "redir! > ".s:output_file
As Gary points out, it can be more efficient not to use redir at all, but
rather to call the writefile function to write directly from a script.
> for dir in s:dir_list
> glob(dir.'*.[ch]')
> endfor
Here you're attempting to call the glob() function, which returns (but does NOT
display) a list. Since you have an active redirection, you should be displaying
the output to capture it in the redirection. To accomplish this, use the "echo"
command:
echo glob(dir.'*.[ch]')
An alternate, better approach is to not use the redirection at all. You can
either store the result of glob into a string or list, or just pass the result
into the writefile function. See Gary's response.
> redir END
> endfunction
>
> silent call BuildFileList
>
I'm amazed this function call works. I always thought you need to add
parentheses at the end like "call BuildFileList()", but apparently it works
enough to execute the function and give you error messages! I just learned
something...which I will probably continue to not use.
> I'm getting the following errors when I execute this function:
> E190: Cannot open "s:output_file" for writing
> E486: Pattern not found: dir."*.[ch]"
>
> Obviously there is something wrong with the way I use redir and glob, but I
> can't get my finger on it. Does anybody know what am I doing wrong?
>
Yup, with both. Good insight :-)
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