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f7e976676c
Centralize commenting functions into a single file, and declare variables used by those functions in language support files. The functions are `comment-selection` and `comment-line`, users should bind those functions to the keys of their liking for easy access.
78 lines
2.7 KiB
Plaintext
78 lines
2.7 KiB
Plaintext
## Characters that will be used to surround a selection with
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decl str-list comment_selection_chars "/*:*/"
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## Characters that will be inserted at the beginning of a line to comment
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decl str comment_line_chars "//"
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def comment-selection -docstring "Comment/uncomment the current selection" %{
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%sh{
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function escape_regex_chars {
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## Escape characters that can be interpreted as modifiers/repetitors by the regex engine
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sed -r 's,(\*|\+|\[|\]|\{\}|\||\(|\)|\?),\\\1,g' <<< "$@"
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}
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readonly opening="${kak_opt_comment_selection_chars%%:*}"
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readonly closing="${kak_opt_comment_selection_chars##*:}"
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readonly opening_escaped=$(escape_regex_chars "${opening}")
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readonly closing_escaped=$(escape_regex_chars "${closing}")
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if [ -z "${opening}" -o -z "${closing}" ]; then
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echo "The \`comment_selection_chars\` variable is empty, couldn't comment the selection" >&2
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exit
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fi
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echo "try %{
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## The selection is empty
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exec -draft %{<a-K>\A[\h\v\n]*\z<ret>}
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try %{
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## The selection has already been commented
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exec -draft %{<a-K>\A${opening_escaped}.*${closing_escaped}\z<ret>}
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## Comment the selection
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exec %{a ${closing}<esc>i${opening} <esc>$((${#opening} + 1))H}
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} catch %{
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## Uncomment the commented selection
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exec -draft %{s(\A${opening_escaped} )|( ${closing_escaped}\z)<ret>d}
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}
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}"
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}
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}
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def comment-line -docstring "Comment/uncomment the current line" %{
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%sh{
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function escape_regex_chars {
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## Escape characters that can be interpreted as modifiers/repetitors by the regex engine
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sed -r 's,(\*|\+|\[|\]|\{\}|\||\(|\)|\?),\\\1,g' <<< "$@"
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}
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readonly opening="${kak_opt_comment_line_chars}"
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readonly opening_escaped=$(escape_regex_chars "${opening}")
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if [ -z "${opening}" ]; then
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echo "The \`comment_line_chars\` variable is empty, couldn't comment the line" >&2
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exit
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fi
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echo "
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## Select the content of the line, without indentation
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exec %{I<esc><a-l>}
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try %{
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## There's no text on the line
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exec -draft %{<a-K>\A[\h\v\n]*\z<ret>}
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try %{
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## The line has already been commented
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exec -draft %{<a-K>^${opening_escaped}<ret>}
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## Comment the line
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exec %{i${opening} <esc>$((${#opening} + 1))H}
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} catch %{
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## Uncomment the line
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exec -draft %{s^${opening_escaped}\h*<ret>d}
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}
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}"
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}
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}
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