Allow for other delimiter?

[caneff]

Maybe this is too much to do, but for instance, in R the style guide I follow dictates that multi word variables be written as

multi.word.var

I would love to be able to add '.' to the list of delimiters so that this works. Currently doing dav when the cursor is on m' just deletes the whole word. I'd like it to leave word.var instead

[Julian]

This is a great suggestion.

The delimiter variables should probably be globals (or some other variable should exist), which would allow adding new ones.

Suggestions welcome, otherwise I'll try to think of a nice interface to expose this as.

[caneff]

That sounds perfectly reasonable. A global flag with "_" as the only default, and then you could add to them in the vimrc. This also allows for people to turn off _ as a delimiter if they wanted to.

[killphi]

👍

[Julian]

I think I'd like a method to do this, since it involves touching two parts – a left delimiter and a right delimiter, and theoretically those could be different.

E.g. textobj#variable_segment#add_delimiter(".") for two-sided and another arg for left and right.

I'd do this now, I just forget when for left delimiter for e.g. _ (i.e. snake case), you need a \i to not grab the _ on both sides. So I have to think that through a bit.

Patches welcome if anyone has some clarity.

[raine]

Is there an easy way to add support for -, even if it was just in my local copy? Thanks.

Update:

This patch adds support for -:

diff --git i/autoload/textobj/variable_segment.vim w/autoload/textobj/variable_segment.vim
index 5c2995f..ff0ea00 100644
--- i/autoload/textobj/variable_segment.vim
+++ w/autoload/textobj/variable_segment.vim
@@ -1,5 +1,5 @@
 function! s:select(object_type, right_boundary)
-    let left_boundaries = ['_\+\i', '\<', '\l\u', '\u\u\ze\l', '\a\d', '\d\a']
+    let left_boundaries = ['-\+\i', '_\+\i', '\<', '\l\u', '\u\u\ze\l', '\a\d', '\d\a']
     call search(join(left_boundaries, '\|'), 'bce')
     let start_position = getpos('.')
 
@@ -19,7 +19,7 @@ function! s:select(object_type, right_boundary)
 endfunction
 
 function! s:select_a()
-    let right_boundaries = ['_', '\l\u', '\u\u\l', '\a\d', '\d\a', '\i\>']
+    let right_boundaries = ['-', '_', '\l\u', '\u\u\l', '\a\d', '\d\a', '\i\>']
     let right_boundary = join(right_boundaries, '\|')
     let [type, start_position, end_position] = s:select('a', right_boundary)
     let [_, start_line, start_column, _] = start_position
@@ -46,7 +46,7 @@ function! s:select_a()
 endfunction
 
 function! s:select_i()
-    let right_boundaries = ['\i_', '\l\u', '\u\u\l', '\a\d', '\d\a', '\i\>']
+    let right_boundaries = ['\i-', '\i_', '\l\u', '\u\u\l', '\a\d', '\d\a', '\i\>']
     return s:select('i', join(right_boundaries, '\|'))
 endfunction