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1 files changed, 218 insertions, 0 deletions

diff --git a/autoload/tools/comment.kak b/autoload/tools/comment.kak
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+# Line comments
+# If the language has no line comments, set to ''
+declare-option -docstring "characters inserted at the beginning of a commented line" \
+    str comment_line '#'
+
+# Block comments
+declare-option -docstring "characters inserted before a commented block" \
+    str comment_block_begin
+declare-option -docstring "characters inserted after a commented block" \
+    str comment_block_end
+
+# Default comments for all languages
+hook global BufSetOption filetype=asciidoc %{
+    set-option buffer comment_line '//'
+    set-option buffer comment_block_begin '////'
+    set-option buffer comment_block_end '////'
+}
+
+hook global BufSetOption filetype=(c|cpp|dart|gluon|go|java|javascript|objc|odin|php|pony|protobuf|rust|sass|scala|scss|swift|typescript|groovy) %{
+    set-option buffer comment_line '//'
+    set-option buffer comment_block_begin '/*'
+    set-option buffer comment_block_end '*/'
+}
+
+hook global BufSetOption filetype=(cabal|haskell|moon|idris|elm|dhall|purescript) %{
+    set-option buffer comment_line '--'
+    set-option buffer comment_block_begin '{-'
+    set-option buffer comment_block_end '-}'
+}
+
+hook global BufSetOption filetype=clojure %{
+    set-option buffer comment_line '#_'
+    set-option buffer comment_block_begin '(comment '
+    set-option buffer comment_block_end ')'
+}
+
+hook global BufSetOption filetype=janet %{
+    set-option buffer comment_line '#'
+    set-option buffer comment_block_begin '(comment '
+    set-option buffer comment_block_end ')'
+}
+
+hook global BufSetOption filetype=coffee %{
+    set-option buffer comment_block_begin '###'
+    set-option buffer comment_block_end '###'
+}
+
+hook global BufSetOption filetype=conf %{
+    set-option buffer comment_line '#'
+}
+
+hook global BufSetOption filetype=css %{
+    set-option buffer comment_line ''
+    set-option buffer comment_block_begin '/*'
+    set-option buffer comment_block_end '*/'
+}
+
+hook global BufSetOption filetype=d %{
+    set-option buffer comment_line '//'
+    set-option buffer comment_block_begin '/+'
+    set-option buffer comment_block_end '+/'
+}
+
+hook global BufSetOption filetype=(fennel|gas|ini) %{
+    set-option buffer comment_line ';'
+}
+
+hook global BufSetOption filetype=haml %{
+    set-option buffer comment_line '-#'
+}
+
+hook global BufSetOption filetype=(html|xml) %{
+    set-option buffer comment_line ''
+    set-option buffer comment_block_begin '<!--'
+    set-option buffer comment_block_end '-->'
+}
+
+hook global BufSetOption filetype=(latex|mercury) %{
+    set-option buffer comment_line '%'
+}
+
+hook global BufSetOption filetype=ledger %{
+    set-option buffer comment_line ';'
+}
+
+hook global BufSetOption filetype=(lisp|scheme) %{
+    set-option buffer comment_line ';'
+    set-option buffer comment_block_begin '#|'
+    set-option buffer comment_block_end '|#'
+}
+
+hook global BufSetOption filetype=lua %{
+    set-option buffer comment_line '--'
+    set-option buffer comment_block_begin '--[['
+    set-option buffer comment_block_end ']]'
+}
+
+hook global BufSetOption filetype=markdown %{
+    set-option buffer comment_line ''
+    set-option buffer comment_block_begin '[//]: # "'
+    set-option buffer comment_block_end '"'
+}
+
+hook global BufSetOption filetype=(ocaml|coq) %{
+    set-option buffer comment_line ''
+    set-option buffer comment_block_begin '(* '
+    set-option buffer comment_block_end ' *)'
+}
+
+hook global BufSetOption filetype=((free|object)?pascal|delphi) %{
+    set-option buffer comment_line '//'
+    set-option buffer comment_block_begin '{'
+    set-option buffer comment_block_end '}'
+}
+
+hook global BufSetOption filetype=perl %{
+    set-option buffer comment_block_begin '#['
+    set-option buffer comment_block_end ']'
+}
+
+hook global BufSetOption filetype=(pug|zig|cue|hare) %{
+    set-option buffer comment_line '//'
+}
+
+hook global BufSetOption filetype=python %{
+    set-option buffer comment_block_begin "'''"
+    set-option buffer comment_block_end "'''"
+}
+
+hook global BufSetOption filetype=r %{
+    set-option buffer comment_line '#'
+}
+
+hook global BufSetOption filetype=ragel %{
+    set-option buffer comment_line '%%'
+    set-option buffer comment_block_begin '%%{'
+    set-option buffer comment_block_end '}%%'
+}
+
+hook global BufSetOption filetype=ruby %{
+    set-option buffer comment_block_begin '^begin='
+    set-option buffer comment_block_end '^=end'
+}
+
+hook global BufSetOption filetype=sql %{
+    set-option buffer comment_line '--'
+    set-option buffer comment_block_begin '/*'
+    set-option buffer comment_block_end '*/'
+}
+
+define-command comment-block -docstring '(un)comment selections using block comments' %{
+    evaluate-commands %sh{
+        if [ -z "${kak_opt_comment_block_begin}" ] || [ -z "${kak_opt_comment_block_end}" ]; then
+            echo "fail \"The 'comment_block' options are empty, could not comment the selection\""
+        fi
+    }
+    evaluate-commands -save-regs '"/' -draft %{
+        # Keep non-empty selections
+        execute-keys <a-K>\A\s*\z<ret>
+
+        try %{
+            # Assert that the selection has been commented
+            set-register / "\A\Q%opt{comment_block_begin}\E.*\Q%opt{comment_block_end}\E\n*\z"
+            execute-keys "s<ret>"
+            # Uncomment it
+            set-register / "\A\Q%opt{comment_block_begin}\E|\Q%opt{comment_block_end}\E\n*\z"
+            execute-keys s<ret>d
+        } catch %{
+            # Comment the selection
+            set-register '"' "%opt{comment_block_begin}"
+            execute-keys -draft P
+            set-register '"' "%opt{comment_block_end}"
+            execute-keys p
+        }
+    }
+}
+
+define-command comment-line -docstring '(un)comment selected lines using line comments' %{
+    evaluate-commands %sh{
+        if [ -z "${kak_opt_comment_line}" ]; then
+            echo "fail \"The 'comment_line' option is empty, could not comment the line\""
+        fi
+    }
+    evaluate-commands -save-regs '"/' -draft %{
+        # Select the content of the lines, without indentation
+        execute-keys <a-s>gi<a-l>
+
+        try %{
+            # Keep non-empty lines
+            execute-keys <a-K>\A\s*\z<ret>
+        }
+
+        try %{
+            set-register / "\A\Q%opt{comment_line}\E\h?"
+
+            try %{
+                # See if there are any uncommented lines in the selection
+                execute-keys -draft <a-K><ret>
+
+                # There are uncommented lines, so comment everything
+                set-register '"' "%opt{comment_line} "
+                align-selections-left
+                execute-keys P
+            } catch %{
+                # All lines were commented, so uncomment everything
+                execute-keys s<ret>d
+            }
+        }
+    }
+}
+
+define-command align-selections-left -docstring 'extend selections to the left to align with the leftmost selected column' %{
+    evaluate-commands %sh{
+        leftmost_column=$(echo "$kak_selections_desc" | tr ' ' '\n' | cut -d',' -f1 | cut -d'.' -f2 | sort -n | head -n1)
+        aligned_selections=$(echo "$kak_selections_desc" | sed -E "s/\.[0-9]+,/.$leftmost_column,/g")
+        echo "select $aligned_selections"
+    }
+}