file: job.t package: muf status: alpha
The |positionInStack? prim is a
compiler-support function which accepts a block of
integer-coded characters such as returned by
lisp:|classifyLispToken or
|backslashesToHighbit and searches the
given stack for a matching string.
The usual use is to maintain a block-structured
local symbol table in the stack, with
alternating string keys and function/integer
values.
As usual, one motivation for expressing the
[token] argument as a block of ints
instead of as a string, is to minimize
generation of garbage strings by the Muq
compilers: It is usually possible to
tokenize the compiler input and look up
the results in the symbol tables entirely
without garbage generation.
See section getKey?.
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