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Full Discussion: Hash (#) as a variable
Top Forums UNIX for Dummies Questions & Answers Hash (#) as a variable Post 21492 by Perderabo on Thursday 16th of May 2002 10:16:27 PM
Old 05-16-2002
The first thing that worried me is this sort of thing:
x=date
$x

It seems to me that the bourne shell used to barf on code like that. But ksh sure seems to take it in stride. I am used to doing:
x=date
eval $x

which did indeed work with the bourne shell. Since you are using an eval anyway, the point is kinda moot. But it's cool that this works and I'm gonna start using it.

But next we have this:
y=#

I would have expected that to be the same as:
y= # I just set y equal to nothing

Again, I can't make it fail, so I guess it's probably legal. But I sure can't convince myself of that by reading Dave Korn's book. A quoted pound sign can never start a comment, so I would go with
y="#"

which is, I think, somewhat more clear. And it may be a fluke that y=# currently works. If a new release of ksh was to break that, you would suddenly have a hard bug to find.
 

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wibble-test-genrunner

wibble-test-genrunner(1)				      General Commands Manual					  wibble-test-genrunner(1)

NAME

       wibble-test-genrunner - Code generator for wibble testsuites.

SYNOPSIS

       wibble-test-genrunner header <file>

       wibble-test-genrunner main <files>

DESCRIPTION

       The  program  generates	.cpp files that are then compiled and linked into a test program for running tests from .test.h files. Examples of
       such .test.h files may be found among wibble headers, eg. /usr/include/wibble/regexp.test.h.

       In the first form, the program processes a single header file (usually of the form foo.test.h) and produces a corresponding .cpp file to be
       compiled. In the second form, it takes as <files> all the .test.h headers and produces a single main.cpp which contains the main() function
       of the test program, which then runs all the tests in all the .test.h files. The generated source code is always written to standard output
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       The program currently has no options other than the two forms above. The program is intended to be run as part of build process of programs
       or libraries using the wibble testing framework. For convenient use from CMake, there is a test.cmake script under /usr/share/wibble,  that
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AUTHOR

       Petr Rockai <me@mornfall.net>

															  wibble-test-genrunner(1)
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