henry@utzoo.UUCP (Henry Spencer) (03/21/85)
For those of you concerned about possible (mis)use of the Reiser
preprocessor features in code you maintain, enclosed is a dead-simple
shell program that looks for worrisome constructs in C source files.
It's really too simplistic, and does produce false alarms, but it will
nevertheless reduce the amount of code to be inspected by a couple of
orders of magnitude.
It looks for macro substitution in strings using the (somewhat naive)
heuristic that any parameterized macro containing a string is suspect.
This produces some false alarms for things like printf's in macros,
but not many. It looks for token concatenatation by looking for the
magic /**/ sequence that accomplishes it in the Reiser preprocessor.
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: 'Simplistic search for possible Reiserisms in C source files.'
PATH=/bin:/usr/bin ; export PATH
: 'Look for parameterized macros containing strings.'
egrep '^#[ ]*define[ ]+[a-zA-Z_][a-zA-Z0-9_]*\(.*["'"']" $*
: 'Look for the magic /**/ that vanishes, causing token concatenation.'
egrep '^#[ ]*define[ ]+.*/\*\*/' $*
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--
Henry Spencer @ U of Toronto Zoology
{allegra,ihnp4,linus,decvax}!utzoo!henry