Generates Graphviz graphics using shortcodes. Supports almost all Graphviz features.
dotdoesn't work, including the command line used and adding the DOT as submitted, with line numbers. (Joachim Durchholz)
attribute_escape()have both been deprecated. Migrate to
esc_url()and esc_attr()`. (Sam Wilson)
add_query_arg()to escape its output; a possible XSS vector.
rename()instead. (Sam Wilson)