ansi-color-parse-sequence
ansi-color-parse-sequence is a compiled Lisp function in `ansi-color.el
'.
(ansi-color-parse-sequence ESCAPE-SEQ)
Return the list of all the parameters in ESCAPE-SEQ.
ESCAPE-SEQ is a SGR control sequences such as \033[34m. The parameter
34 is used by `ansi-color-get-face-1' to return a face definition.
Returns nil only if there's no match for `ansi-color-parameter-regexp'.