- flatten nested "lindex" structures - merge multiple "lappend" operations - use "lassign" instead of multiple "lindex" operations - improve performance util_convert_line_breaks_to_html by reducing number of regsub operations and more precise regular expressions - use numeric comparison operator for truth value comparisons - use "lassign" instead of multiple "lindex" operations - reduce number of remaining "string equal" operations
- use "lassign" instead of "foreach" idiom - use namespace prefix instead of "global" statement - use compiled string expressions - use "in" expression instead of "lsearch -exact"