Correct a bug in todo#Complete

where the entire lines were being shown as related

README.markdown

@@ -173,6 +173,12 @@ buffers in which they appears in the preview window. It does the same thing
 for context except that it gives in the preview the list of projects existing
 in each existing contexts.
 
+If you don't want the preview window to open when performing completion, add the
+following lines to your vimrc:
+
+    au filetype todo setlocal completeopt-=preview
+
+
 ## Hierarchical sort
 
 This fork provides a hierarchical sorting function designed to do by project

autoload/todo.vim

@@ -393,7 +393,11 @@ endfun
 fun! TodoCopyTempItem(item)
     let ret={}
     let ret.word=a:item.word
-    let ret.related=[a:item.related]
+    if has_key(a:item, "related")
+        let ret.related=[a:item.related]
+    else
+        let ret.related=[]
+    endif
     let ret.buffers=[a:item.buffers]
     return ret
 endfun
@@ -423,7 +427,9 @@ fun! todo#Complete(findstart, base)
                     let item={}
                     let item.word=substitute(line,'.*\('.a:base.'\S*\).*','\1',"")
                     let item.buffers=bufname(bufnr)
-                    let item.related=substitute(line,'.*\s\('.opp.'\S\S*\).*','\1',"")
+                    if line =~ '.*\s\('.opp.'\S\S*\).*'
+                        let item.related=substitute(line,'.*\s\('.opp.'\S\S*\).*','\1',"")
+                    endif
                     call add(res,item)
                 endif
             endfor
@@ -436,7 +442,7 @@ fun! todo#Complete(findstart, base)
             for it in res
                 if curitem.word==it.word
                     " Merge results
-                    if index(curitem.related,it.related) <0
+                    if has_key(curitem, "related") && has_key(it, "related") && index(curitem.related,it.related) <0
                         call add(curitem.related,it.related)
                     endif
                     if index(curitem.buffers,it.buffers) <0

doc/todo.txt

@@ -182,6 +182,12 @@ buffers in which they appears in the preview window. It does the same thing
 for context except that it gives in the preview the list of projects existing
 in each existing contexts.
 
+If you don't want the preview window to open when performing completion, add the
+following lines to your vimrc:
+>
+    au filetype todo setlocal completeopt-=preview
+<
+
 ===============================================================================
 5. Hierarchical sort                               *TodoTxt-HierarchicalSort* ~
 

tests/clean-vim.sh

@@ -11,6 +11,7 @@ set rtp+=~/.vim/bundle/vader.vim
 set rtp+=./
 filetype plugin indent on
 syntax enable
+autocmd filetype todo setlocal omnifunc=todo#Complete
 EOF
-) tests/todo.txt
+) $*
 

tests/runtests.sh

@@ -11,6 +11,7 @@ set rtp+=~/.vim/bundle/vader.vim
 set rtp+=./
 filetype plugin indent on
 syntax enable
+autocmd filetype todo setlocal omnifunc=todo#Complete
 EOF
 ) +Vader! tests/*.vader && echo Success || exit 1
 
@@ -24,6 +25,7 @@ set rtp+=~/.vim/bundle/vader.vim
 set rtp+=./
 filetype plugin indent on
 syntax enable
+autocmd filetype todo setlocal omnifunc=todo#Complete
 set ignorecase
 EOF
 ) +Vader! tests/*.vader && echo Success || exit 1
@@ -37,6 +39,7 @@ set rtp+=~/.vim/bundle/vader.vim
 set rtp+=./
 filetype plugin indent on
 syntax enable
+autocmd filetype todo setlocal omnifunc=todo#Complete
 set iskeyword+=-
 EOF
 ) +Vader! tests/*.vader && echo Success || exit 1

tests/todo.vader

@@ -760,6 +760,33 @@ Then (Is cursor on first non-overdue task?):
 After:
     unlet g:TodoTxtSortDueDateCursorPos
 
+" function todo#Complete(findstart, base) {{{2
+Given todo (Tasks):
+  2017-09-23 Test task +SecretProject @Work due:2017-09-26
+  Tricky lowercase @wrongCaseSelected +selectedWrongCase
+  Project without a context +SecretProject
+Do (Complete context W):
+  Go@W\<C-X>\<C-O>
+Expect todo (Context Work):
+  2017-09-23 Test task +SecretProject @Work due:2017-09-26
+  Tricky lowercase @wrongCaseSelected +selectedWrongCase
+  Project without a context +SecretProject
+  @Work
+Do (Complete project S):
+  Go+S\<C-X>\<C-O>
+Expect todo (Project SecretProject):
+  2017-09-23 Test task +SecretProject @Work due:2017-09-26
+  Tricky lowercase @wrongCaseSelected +selectedWrongCase
+  Project without a context +SecretProject
+  +SecretProject
+Execute (Complete project and switch to preview):
+  :execute "normal Go+\<C-X>\<C-O>\<ESC>"
+  :blast!
+Expect (Project SecretProject):
+  Contexts: @Context
+  Buffers: tests/todo.vader
+  
+
 " file: ftplugin/todo.vim {{{1
 
 " function: TodoFoldLevel(lnum) {{{2