Add kak and more

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diff --git a/config/kak/auto-pairs.kak b/config/kak/auto-pairs.kak
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+# Auto-pairing of characters
+# Heavily based on Visual Studio Code.
+# https://code.visualstudio.com
+#
+# Public commands: ["enable-auto-pairs", "disable-auto-pairs"]
+# Public options: ["auto_pairs"]
+#
+# Usage:
+#
+# enable-auto-pairs
+#
+# Configuration:
+#
+# set-option global auto_pairs ( ) { } [ ] '"' '"' "'" "'" ` ` “ ” ‘ ’ « » ‹ ›
+#
+# How does it work?
+#
+# The script installs insert hooks on opening pair characters, such as brackets and quotes.
+# When auto-closing has been triggered, it activates the following functionalities:
+#
+# – {closing-pair} ⇒ Insert closing pair or move right in pair
+# – Enter ⇒ Insert a new indented line in pair (only for the next key)
+# – Control+Enter ⇒ Prompt a count for new indented lines in pair (only for the next key)
+#
+# When moving or leaving insert mode, the functionalities deactivate.
+#
+# Technical details:
+#
+# – Insert hooks are added on opening pair characters from %opt{auto_pairs} option.
+# – Evaluates %opt{auto_close_trigger} option to activate auto-pairing.
+# – Provides %opt{opening_pair} expansion in expressions.
+# – Uses %opt{inserted_pairs} count to keep track of inserted pairs for inserting or moving in pair.
+# – Uses the same implementation for nestable (such as brackets) and non-nestable (such as quotes) pairs.
+# Since insert hooks are added on opening pair characters (for auto-pairing) and mappings on closing pair characters (for moving in pair),
+# we can distinguish same pair characters once auto-pairing has been activated.
+
+# Configuration ────────────────────────────────────────────────────────────────
+
+# List of surrounding pairs
+declare-option -docstring 'list of surrounding pairs' str-list auto_pairs ( ) { } [ ] '"' '"' "'" "'" ` ` “ ” ‘ ’ « » ‹ ›
+
+# Auto-pairing of characters activates only when this expression does not fail.
+# By default, it avoids non-nestable pairs (such as quotes), escaped pairs and word characters.
+declare-option -docstring 'auto-pairing of characters activates only when this expression does not fail' str auto_close_trigger '<a-h><a-K>(\w["''`]|""|''''|``).\z<ret><a-k>[^\\]?\Q%opt{opening_pair}<a-!>\E\W\z<ret>'
+
+# Internal variables ┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈
+
+# Retain inserted pairs
+declare-option -hidden str opening_pair
+declare-option -hidden int inserted_pairs
+
+# Commands ─────────────────────────────────────────────────────────────────────
+
+define-command -override enable-auto-pairs -docstring 'enable auto-pairs' %{
+  remove-hooks global auto-pairs
+  evaluate-commands %sh{
+    set -- ${kak_opt_auto_pairs}
+    while [ "$2" ]
+    do
+      printf 'auto-close-pair %%<%s> %%<%s>\n' "$1" "$2"
+      shift 2
+    done
+  }
+}
+
+define-command -override disable-auto-pairs -docstring 'disable auto-pairs' %{
+  remove-hooks global auto-pairs
+}
+
+# Internal commands ┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈
+
+define-command -override -hidden auto-close-pair -params 2 %{
+  hook -group auto-pairs global InsertChar "\Q%arg{1}" "handle-inserted-opening-pair %%<%arg{1}> %%<%arg{2}>"
+  hook -group auto-pairs global InsertDelete "\Q%arg{1}" "handle-deleted-opening-pair %%<%arg{1}> %%<%arg{2}>"
+}
+
+# Internal hooks ┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈
+
+define-command -override -hidden handle-inserted-opening-pair -params 2 %{
+  try %{
+    # Test whether the commands contained in the option pass.
+    # If not, it will throw an exception and execution will jump to
+    # the “catch” block below.
+    set-option window opening_pair %arg{1}
+    execute-keys -draft %opt{auto_close_trigger}
+
+    # Action: Close pair
+    execute-keys %arg{2}
+
+    # Keep the track of inserted pairs
+    increment-inserted-pairs-count
+
+    # Move back in pair (preserve selected text):
+    try %{
+      execute-keys -draft '<a-k>..<ret>'
+      execute-keys '<a-;>H'
+    } catch %{
+      execute-keys '<a-;>h'
+    }
+
+    # Add insert mappings
+    map -docstring 'insert closing pair or move right in pair' window insert %arg{2} "<a-;>:insert-closing-pair-or-move-right-in-pair %%🐈%arg{2}🐈<ret>"
+    map -docstring 'insert a new indented line in pair' window insert <ret> '<a-;>:insert-new-line-in-pair<ret>'
+    map -docstring 'prompt a count for new indented lines in pair' window insert <c-ret> '<a-;>:prompt-insert-new-line-in-pair<ret>'
+
+    # Enter is only available on next key.
+    hook -group auto-pairs -once window InsertChar '.*' %{
+      unmap window insert <ret>
+      unmap window insert <c-ret>
+    }
+
+    # Clean insert mappings and remove hooks
+    hook -group auto-pairs -once window WinSetOption 'inserted_pairs=0' "
+      unmap window insert %%🐈%arg{2}🐈
+      unmap window insert <ret>
+      unmap window insert <c-ret>
+      remove-hooks window auto-pairs
+    "
+
+    # Clean state when moving or leaving insert mode
+    hook -group auto-pairs -once window InsertMove '.*' %{
+      reset-inserted-pairs-count
+    }
+
+    hook -always -once window ModeChange 'pop:insert:normal' %{
+      reset-inserted-pairs-count
+    }
+  }
+}
+
+# Backspace ⇒ Erases the whole bracket
+define-command -override -hidden handle-deleted-opening-pair -params 2 %{
+  try %{
+    execute-keys -draft "<space>;<a-k>\Q%arg{2}<ret>"
+    execute-keys '<del>'
+    decrement-inserted-pairs-count
+  }
+}
+
+# Internal mappings ┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈
+
+# {closing-pair} ⇒ Insert closing pair or move right in pair
+define-command -override -hidden insert-closing-pair-or-move-right-in-pair -params 1 %{
+  try %{
+    execute-keys -draft "<space>;<a-k>\Q%arg{1}<ret>"
+    # Move right in pair
+    execute-keys '<a-;>l'
+    decrement-inserted-pairs-count
+  } catch %{
+    # Insert character with hooks
+    execute-keys -with-hooks %arg{1}
+  }
+}
+
+# Enter ⇒ Insert a new indented line in pair (only for the next key)
+define-command -override -hidden insert-new-line-in-pair %{
+  execute-keys '<a-;>;<ret><ret><esc>KK<a-&>j<a-gt>'
+  execute-keys -with-hooks A
+  reset-inserted-pairs-count
+}
+
+# Control+Enter ⇒ Prompt a count for new indented lines in pair (only for the next key)
+define-command -override -hidden prompt-insert-new-line-in-pair %{
+  prompt count: %{
+    execute-keys '<a-;>;<ret><ret><esc>KK<a-&>j<a-gt>'
+    execute-keys "xHyx<a-d>%val{text}O<c-r>""<esc>"
+    execute-keys -with-hooks A
+    reset-inserted-pairs-count
+  }
+}
+
+# ┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈
+
+# Increment and decrement inserted pairs count
+define-command -override -hidden increment-inserted-pairs-count %{
+  set-option -add window inserted_pairs 1
+}
+
+define-command -override -hidden decrement-inserted-pairs-count %{
+  set-option -remove window inserted_pairs 1
+}
+
+define-command -override -hidden reset-inserted-pairs-count %{
+  set-option window inserted_pairs 0
+}