shell: clink support

[rsteube]

Request

Clink combines the native Windows shell cmd.exe with the powerful command line editing features of the GNU Readline library, which provides rich completion, history, and line-editing capabilities.

Clink offers robust completion configuration utilizing Lua. It is already compatible with Starship. This request is to add carapace support for Clink.

Proposed solution

The documentation for adding completions can be found here. The solution is for either the author of carapace-bin, myself or another contributor to take on the task of adding Clink as a shell for completion support.

Anything else?

• Usage Hint for usage/errors
• Word Breaks can be disabled
• Colors seems similar to zsh
• Function to provide the dynamic completion (got word, linestate,...)
• load to invoke carapace
• builder to return the results (got display, description,...)
• loop for positionalany

related carapace-sh/carapace-bin#2665

[rsteube]

Needs the anti-feature autosuggest disabled (otherwise the completion function gets hammered 🙄).

clink set autosuggest.enable false

[rsteube]

word is empty contrary to documentation 🤔

local function f(word, word_index, line_state, match_builder) 
  print("\n--")                                                                                             Line with spaces only.
  for i = 1,word_index,1 do                                                                                       (trailing-space)
    print("word" .. i .. ": " .. string.format("%q", line_state:getword(i))) 
  end 
  print("line_state: " .. string.format("%q", line_state:getline())) 
  print("word: " .. string.format("%q", word)) 
  print("endword: " .. string.format("%q", line_state:getendword())) 
  print("getword(wordcount): " .. string.format("%q", line_state:getword(line_state:getwordcount()))) 
   
  return true 
end 
 
clink.argmatcher("word"):addarg({ f }):loop(1) 

❯ word one two th
--
word1: "word"
word2: "one"
word3: "two"
word4: ""
line_state: "word one two th"
word: ""
endword: ""
getword(wordcount): ""