u/CRTejaswi

Visiting Ahmedabad for a few days; primarily looking to spend a few hours on weekends (Fri-Sun) reading - especially at public libraries. I've lived in Ahmedabad in the past, so, navigation won't be an issue. What I need to know is what good options I have, and, when/where/how do I register to have a hassle free experience getting in once I'm at a venue. I'm not looking for travel/touristy advice, just, good reading places (for long hours); preferably public libraries - with access to a variety of reading materials.

Any insight in this direction will be highly appreciated.

How to persist echo from this function call (without using timers)

function! VisualStats()
    let wc      = wordcount()
    let [l1,l2] = sort([line('v'), line('.')])
    let txt     = join(getline(l1,l2), "\n")
    let sp      = len(substitute(txt, '[^ ]', '', 'g'))
    let st      = len(substitute(txt, '[^.!?]', '', 'g'))
    let pa      = empty(txt) ? 0 : len(split(txt, '\n\s*\n'))
    echo "CHARs " . wc.visual_chars . " WORDs " . wc.visual_words
    \. " SENTs " . (st > 0 ?st :1) . " PARAs " . pa . " SPACEs " . sp
endfunction
xnoremap <silent> C <Cmd>call VisualStats()<CR>

just like when directly keymapped?

xnoremap <silent> c <Cmd>let g:wc=wordcount()<CR><Esc>:
    \let t=join(getline("'<","'>"),"\n")<Bar>
    \let sp=len(substitute(t,'[^ ]','','g'))<Bar>
    \let st=len(substitute(t,'[^.!?]','','g'))<Bar>
    \let pa=empty(t)?0:len(split(t,'\n\s*\n'))<Bar>
    \echo "CHARs ".g:wc.visual_chars." WORDs ".g:wc.visual_words.
    \" SENTs ".(st>0?st:1)." PARAs ".pa." SPACEs ".sp<Bar>
    \unlet g:wc t sp st pa<CR>

I'm looking for creative things one could do with selected blocks to make life easier - and associate them to keys. Some common keybindings I use are:

xnoremap _ :g/^\s*$/d<CR> # delete all empty lines
xnoremap # :g/^\s*#/d<CR> # delete all comments (assuming #)
xnoremap s :sort<CR>

Are there any projects (or even inbuilt stuff) that aid in bringing about a standard library of optimized utilities in VimScript? It doesn't even have to be VimScript stuff - could be a collection of binary utilities that work cohesively with VimScript constructs.

Context: I often use json files as lookup tables (eg. emojis), and over time, have made a collection of functions that enable using jsons in an API-esque manner (obviously using utilities such as jq/curl). I was wondering if there are existing projects out there that structurally enable tooling in Vim using utilities - imitating a standard library like behaviour.

Any insight in this direction is highly appreciated.

Fellow Vimmers who've used Emacs in the past (or have coworkers who do), what are some skills you've carried over into your Vim configuration (or even a concept to simplify your workflow)?

I've been tooling recently (writing utility Vim code to fit my needs), and am looking for both inspiration (addressing meaningful issues), and, optimization (removing redundancies, ie, snappier implementations).

Hence, Emacs is an obvious avenue imo to learn from - without wanting to dabble into all its craziness (I have some experience in it, but don't use it routinely).

Any advice/insight in this direction is highly appreciated.

EDIT:

As a Vimmer myself, I miss not having features like MultipleCursors (tried using an extension long ago, but it slowed down usage so removed it). I stumbled upon this video from Tsoding that highlights the usefulness of Dired (Emacs builtin), and how MultipleCursors is an intuitive addon to it - to say, modify several filenames/extensions at once.

While I use ViFM, so, I can pretty much achieve the same thing, but was inspired, and sought to learn of other creative ways in which Emacs is used - so I may implement something similar for myself in Vim, if it's of use to me.

Setting a KeyHandler, so I can ?alias<ENTER> to get a cmdlet's source/definition.

My example tab-completes (using <ENTER>, so <TAB> isn't overloaded), so, obviously there's completion text. I want it to not be displayed (either erased, or, capture/print $output only).

Set-PSReadLineKeyHandler -Key Enter -ScriptBlock {
    $line = $null
    $cursor = $null
    [Microsoft.PowerShell.PSConsoleReadLine]::GetBufferState([ref]$line,[ref]$cursor)
    if($line -match '^\?([^\s]+)$'){
        $n = $matches[1]
        [Microsoft.PowerShell.PSConsoleReadLine]::RevertLine()
        [Microsoft.PowerShell.PSConsoleReadLine]::Insert(@"
`$c = gcm '$n'
if(`$c.CommandType -eq 'Alias'){ (gcm (gal '$n').Definition).Definition
} else { `$c.Definition }
"@)
        [Microsoft.PowerShell.PSConsoleReadLine]::TabCompleteNext()
        [Microsoft.PowerShell.PSConsoleReadLine]::AcceptLine()
        return
    }
} # ?gcm

PS: I'm aware this blocks <ENTER> - it can be associated to something else, eg. -Key ' ,?', so, please ignore this for now.

⚠️ RESOLVED, thanks to surfingoldelephant, and monkeynin. Kudos for their meticulous implementations!

Set-PSReadLineKeyHandler -Key Enter -ScriptBlock {
    $line,$cursor = $null,$null
    [Microsoft.PowerShell.PSConsoleReadLine]::GetBufferState([ref]$line,[ref]$cursor)
    if($line -match '^\?([^\s]+)$'){
        $n = $matches[1]
        [Microsoft.PowerShell.PSConsoleReadLine]::DeleteLine()
        $c = gcm "$n"
        if($c.CommandType -eq 'Alias'){ $out = (gcm (gal "$n").Definition).Definition
        } else                        { $out = $c.Definition }
        Write-Host $out
    }
    else {}
    [Microsoft.PowerShell.PSConsoleReadLine]::AcceptLine()
} # ?gcm

Why does parsing STDOUT (-) work correctly in the first case, but fail in the second?

magick  _.png -negate png:- | chafa --size=70x -f sixel -  # PS7.6 ✔

function img     { chafa.exe --size=70x -f sixel @args}
magick  _.png -negate png:- | img -                        # PS7.6 ❌

Here, echo works fine, but put raises an error. Why?

AIM:

let s:key_handlers = #{
  \ a: {-> execute('echo "a"')},
  \ b: {-> execute('echo "b"')},
  \ c: {-> execute('echo "c"')},
  " ... fill d-z
  \ }

APPROACH:

:echo join(map(split('defghijklmnopqrstuvwxyz', '\zs'), '"\\ ".v:val.": {-> execute(''echo \"" . v:val . "\"'')},"'), "\n")
:put =join(map(split('defghijklmnopqrstuvwxyz', '\zs'), '"\\ ".v:val.": {-> execute(''echo \"" . v:val . "\"'')},"'), "\n")

ISSUE:

E115: Missing single quote: '

⚠ SOLVED, courtesy u/LostAd6514

How do I safely insert comments inside a dictionary definition?

let s:groups = {
\ '0': {                         " group 0
\   '':  ['#000000', '#ffffff'], " black/white
\   '0': ['#000000', '#f5f5f5'], " ...
\   '1': ['#000000', '#dcdcdc'], " ...
\   '2': ['#000000', '#d3d3d3'], " ...
\ },
...
\}

This snippet:

function lf {
    if ($args){
        (0..($args.Count-1) | %{ "$args[$_]" }) -join ','
        (0..($args.Count-1) | %{ "$($args[$_])" }) -join ','
    } else{
        ...
    }
}
lf pdf png txt

prints:

[0],[1],[2]
,,

instead of the expected pdf,png,txt. Why?

---

I'm concerned with 0..N | args[$_] failing (but args[N] works) even though the syntax pipes well to most objects/cmdlets.

⚠️ RESOLVED, thanks to surfingoldelephant.