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12 lines
522 B
Plaintext
12 lines
522 B
Plaintext
dnl --------------------------------------------------------------------------
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dnl PA_SYM(prefix, string)
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dnl
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dnl Convert a (semi-) arbitrary string to a CPP symbol
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dnl Compact underscores and convert non-C characters to underscore,
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dnl except + which is converted to X (so C++ -> CXX).
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dnl --------------------------------------------------------------------------
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AC_DEFUN([PA_SYM],
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[m4_bpatsubsts(m4_quote(m4_toupper([$*])),
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[,],[],[\+],[X],[[^ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789]+],[_],dnl
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[^._?\(.*\)_.$],[[\1]])])
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