Hi, Alessandro,
Here is Key_k() function (the other functions are analogous, only
l:lineToGo and l:columnToGo are set to different values):
function Key_k()
> let l:lineToGo = line(".") - 1
> let l:columnToGo = col(".")
> let b:noteUnderCursor = GetNoteOnLine(l:lineToGo)
> call Key_Movement(l:lineToGo, l:columnToGo)
> endfunction
And this is Key_Movement():
> function Key_Movement(line, column)
> if !empty(b:noteUnderCursor)
> if !(b:noteUnderCursor["line"] == a:line)
> let l:indentLen = strlen(b:noteUnderCursor["indent"])
> " accounting for "| " portion just after whispace indent
> let l:indentLen = l:indentLen + 3
> if a:column <= l:indentLen
> *call setpos(".", [0, a:line, l:indentLen, 0])*
> return
> endif
> endif
> endif
>
*call setpos(".", [0, a:line, a:column, 0])*
endfunction
However, I managed to get it work by mapping the keys without <expr>
option, like this:
noremap <silent> k :call Key_k()<CR>
2017-01-16 18:11 GMT+02:00 Alessandro Antonello <[email protected]>:
> Hi, Tihomir.
>
> Looking at your message I can't see from were the 'a:line' and 'a:column'
> variables did come from. The way you are calling the set of "Key_*()"
> functions, you are not passing any information through parameters. So I'm
> assuming you are discovering these values inside the function. Which is a
> little bit strange since local variables are prefixed with "l:". "a:"
> prefix
> is used for function arguments.
>
> Could you send a message with the code that doesn't work? I think it would
> be
> more easy to find an issue if we could see the function. Or a bigger
> snippet.
>
>
> 2017-01-15 10:15 GMT-02:00 Tihomir Mitkov <[email protected]>:
>
>> Since vim doesn't support having some lines editable and others not, I
>> figured it out that I can simulate this by keeping meta data about lines
>> and remapping all keys to a function which checks cursor position and
>> decides whether to put the character in question or not. So far so good,
>> now I need to prohibit the cursor from going to certain locations. I
>> remapped h,j,k,l keys like this:
>>
>> map <expr> h Key_h()
>> map <expr> j Key_j()
>> map <expr> k Key_k()
>> map <expr> l Key_l()
>>
>> That also works like a charm. Somewhere in the those functions I call
>> setpos() like this:
>>
>>
>> call setpos(".", [0, a:line, a:column, 0])
>>
>> Unfortunately the only thing this does is to send cursor the first column
>> at the line it is currently in. Further movement with h,j,k,l does nothing.
>> From inside the mapped functions Key_h(), Key_j() I return nothing, since
>> cursor movement is already performed.
>>
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