gud-expr-compound-sep
gud-expr-compound-sep is a compiled Lisp function in `gud.el
'.
(gud-expr-compound-sep SPAN-START SPAN-END)
Scan from SPAN-START to SPAN-END for punctuation characters.
If `->' is found, return `?.'. If `.' is found, return `?.'.
If any other punctuation is found, return `??'.
If no punctuation is found, return `? '.