Module pattern 

Shared line patterns (ported from pattern.ts) as small predicates/helpers.

Functions

is_dash_with_space

/^\s*-\s+$/

is_incomplete_task_list

/^\s*-\s*\[\s*$/

is_quote_incomplete_task_list

/^>\s*-\s*\[\s*$/

is_quote_standalone_dash

/^>\s*-$/

is_quote_task_list

/^>\s*- \[[x ]\]/i

is_standalone_dash

/^\s*-$/

is_table_row_line

/^\|.*\|.*\|/ — line looks like a table row (>= 3 pipes).

is_table_separator_line

/^\|[\s:]*-{3,}[\s:]*(?:\|[\s:]*-{3,}[\s:]*)+\|?$/

is_task_list

/^\s*- \[[x ]\]/i

remove_trailing_standalone_dash

Remove a trailing standalone - line (pattern /(\n\n?)-[ \t]*$/): returns content with that dash line removed, newlines preserved.