package sexp_select
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sexp_select
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sexp select "programs" are themselves formed by a series of sexps.
Individual atoms represent fields that should be matched, with a series of atoms indicating matching nested values.
A list of atoms matches any of the atoms in the list. Lists cannot be nested.
The special atom "*" matches any key.
The special atom ">" indicates that the _next_ "match" (a plain identifier, an "*", or a set of identifiers) must be a direct child.
Examples:
foo : matches "foo" foo bar : matches "bar"s inside "foo"s foo > bar : matches a "bar" that's an immediate child of a "foo" foo > (bar baz) : matches a "bar" or "baz" that's an immediate child of a "foo" bar > * : matches all immediate children of a "bar"