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gelguy avatar gelguy commented on May 30, 2024

You can use the following pipeline:

call wilder#set_option('pipeline', [
      \ wilder#history(100),
      \ {ctx, xs -> filter(xs, {i, x -> match(x, ctx.input) != -1})},
      \ ])

You can increase the number of history candidates by increasing 100, but note that at higher numbers there might be noticeable lag as the gathering of the history candidates is quite inefficient. 0 sets the history candidates to unlimited.

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ratheesh avatar ratheesh commented on May 30, 2024

I have the following pipeline defined.

      call wilder#set_option('pipeline', [
                  \   wilder#branch(
                  \     [
                  \       wilder#check({_, x -> empty(x)}),
                 \       wilder#history(15),
                  \     ],
                  \     wilder#cmdline_pipeline(),
                  \     [                                                                                                                                                                       
                 \       wilder#python_fuzzy_delimiter(),
                  \       wilder#python_search({'engine': 're'}),
                  \       wilder#result_output_escape('^$,*~[]/\'),
                  \     ],
                 \     [
                 \       wilder#history(50),
                 \       {ctx, xs -> filter(xs, {i, x -> match(x, ctx.input) != -1})},
                 \     ],
                  \   ),
                  \ ])

The last segment is completing only history items. May I know how to bind this to a different key? example to <BS>

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ratheesh avatar ratheesh commented on May 30, 2024

Let me rephrase my above comment.

I am looking at an option to complete from history items from the existing command line modes - : / or ?
Example: If C-f is pressed in command line mode, only history items should be sourced, else normal items should be sourced.
It will be immensely useful. This reduces considerable time in executing the desired command.

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gelguy avatar gelguy commented on May 30, 2024

Thanks for bringing up this use case! I was not considering this usage but this is actually quite powerful as it enables you to change the pipeline on the fly.

You can add the following to your init.vim/.vimrc to achieve the effect:

let s:wilder_show_history = 0
function! s:wilder_toggle_history() abort
  let s:wilder_show_history = 1 - s:wilder_show_history
  call timer_start(0, {-> feedkeys("\<BS>")})
  " return space which is then deleted by the <BS> to trigger CmdlineChanged
  return ' '
endfunction

cmap <expr> <C-F> wilder#in_context() ? <SID>wilder_toggle_history() : "\<C-F>"

call wilder#set_option('pipeline', [
      \   wilder#branch(
      \     [
      \       wilder#check({-> s:wilder_show_history}),
      \       wilder#history(100),
      \       {ctx, xs -> filter(xs, {i, x -> match(x, ctx.input) != -1})},
      \     ],
      \    " rest of your pipelines
      \   ),
      \ ])

Remember the ordering of the branches matter so the check should be done before the other pipelines.

The s:wilder_show_history variable can also be used in the renderer to indicate you are using history mode.

Currently, triggering the CmdlineChanged event is inefficient as it has to be triggered twice. I will be adding a helper method to trigger a change on demand in the future.

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ratheesh avatar ratheesh commented on May 30, 2024

Thank you. This is working fine.

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