On 02/10/2013 12:28, Robin Becker wrote:
On 02/10/2013 11:49, Dave Angel wrote:
conditional string or "" then MSVC 9 seems to be ok with it.
>
MSVC and other compilers do not not see eye to eye on the preprocessor
semantics. I no longer use MSVC so I can't experiment. I can only try
to recall extensive manipulation two decades ago.
I believe it does the logic of "backslash at the end of line" first. So
if there are any spaces or tabs after those backslashes (which might
have been lost when you pasted it here), fix them first.
Then I think it looks for macro definitions, where the # must be the
first non-whitespace of the line. Then it expands such macros, and I
think MSVC is unusual in that it expands them multiple times, so a macro
expansion can result in another macro invocation.
I'm not sure where quotes fit in here.
Your original message code doesn't match the expansion you show with -E,
so i suspect your "..." eliding hid something significant.
The actual is this code from _renderPM.c
https://bitbucket.org/rptlab/reportlab/src/fa65fe72b6c2aaecb7747bf14884adb996d8e87f/src/rl_addons/renderPM/_renderPM.c?at=default
PyDoc_STRVAR(__DOC__,
"Helper extension module for renderPM.\n\
\n\
Interface summary:\n\
\n\
import _renderPM\n\
gstate(width,height[,depth=3,bg=0xffffff]) #create an initialised
graphics state\n\
makeT1Font(fontName,pfbPath,names[,reader]) #make a T1 font\n\
delCache() #delete all T1 font info\n\
pil2pict(cols,rows,datastr,palette) hreturn PICT version of im as
bytes\n"
#ifdef RENDERPM_FT
" ft_get_face(fontName) --> ft_face instance\n"
#endif
"\n\
_libart_version # base library version string\n\
_version # module version string\n\
");
when I run that through the pre-processor I get (all on a single line)
static char __DOC__[] = "Helper extension module for renderPM.\n\nInterface
summary:\n\n import _renderPM\n
gstate(width,height[,depth=3,bg=0xffffff])
#create an initialised graphics state\n
makeT1Font(fontName,pfbPath,names[,reader]) #make a T1 font\n
delCache() #delete
all T1 font info\n pil2pict(cols,rows,datastr,palette) hreturn PICT
version of
im as bytes\n" #ifdef 1 " ft_get_face(fontName) --> ft_face instance\n"
#endif "\n _libart_version # base library version string\n _version
# module
version string\n";
I tried a couple of variations of \ at the end of the line preceding #ifdef etc
etc, but nothing seemed to work. The source is properly DOS formatted (according
to vim) so it's not a simple line ending issue and I don't have any extra spaces
at the end of the lines etc etc.
I overlooked that PyDoc_STRVAR is a macro, so, no, it doesn't work for
me either.
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