Project completion anywhere with a user-defined completion function

[sdondley]

Currently, you can use omni completion, <c-x><c-o>, to pick a project when creating a new task. Example:

* [ ] some new task -- project:<c-x><c->

This is nice, but only works in this one context (creating a new task). Here is a very simple hack that allows you to find a project easily with a user-defined completion function. Simple drop this into the .vim/after/ftplugin/vimwiki.vim file (create it if it doesn't exist):

let s:matches=system("/bin/bash -c 'task _projects'")

function! vimwiki#CompleteFA(findstart, base)
    if a:findstart
        " locate the start of the word
        let line = getline('.')
        let start = col('.') - 1
        while start > 0 && (line[start - 1] =~ '\a' || line[start - 1] =~ '.' || line[start - 1] =~ '-')
            let start -= 1
        endwhile
        return start
    else
        " find classes matching "a:base"
        let res = []
        for m in split(s:matches)
            if m =~ '^' . a:base
                call add(res, m)
            endif
        endfor
        return res
    endif
endfun

setlocal completefunc=vimwiki#CompleteFA

Works well enough. It could be improved a bit by prefixing each project name with "project:" and then assigning it to s:matches. Unfortunately, by bash skills aren't up to par.

[sdondley]

OK, didn't thoroughly test this cargo culted code. Only works when you are at the beginning of the current line. Will get this sorted out. Looks like an easy fix.