org-babel-inline-src-block-regexp

org-babel-inline-src-block-regexp is a variable defined in `ob-core.el'.
Its value is

"\\(?:^\\|[^-[:alnum:]]\\)\\(src_\\([^ \f	\n
]+\\)\\(\\|\\[\\(.*?\\)\\]\\){\\([^\f\n
]+?\\)}\\)"

Documentation:
Regexp used to identify inline src-blocks.