\ '\(' . cmake_regex_comment . '\)\?$'
let cmake_indent_begin_regex = '^\s*\(IF\|MACRO\|FOREACH\|ELSE\|ELSEIF\|WHILE\|FUNCTION\)\s*('
\ '\(' . cmake_regex_comment . '\)\?$'
let cmake_indent_begin_regex = '^\s*\(IF\|MACRO\|FOREACH\|ELSE\|ELSEIF\|WHILE\|FUNCTION\)\s*('