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Modified the preprocessor to allow identifiers to start with "%". This is highly experimental

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(I may take it out), but I have this idea that you might be able to create new SWIG directives
as C preprocessor macros.

For example:

#define %check(type) %typemap(check) type

%check(int positive) {
   if ($source < 0) error("hey, what's with this?");
}

(In reality, I think that this feature may allow me to reduce the parser to a smaller
set of more primitive directives that will simplify some of the code maintenance).


git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@891 626c5289-ae23-0410-ae9c-e8d60b6d4f22
This commit is contained in:
Dave Beazley 2000-09-26 03:00:55 +00:00
commit ecd8d72ef5
1 changed files with 2 additions and 2 deletions
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4
Source/Preprocessor/cpp.c
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@ -173,7 +173,7 @@ DOHHash *Preprocessor_define(DOHString_or_char *str, int swigmacro)
goto macro_error; goto macro_error;
} }
break; break;
} else if (isidchar(c)) { } else if (isidchar(c) || (c == '%')) {
Putc(c,macroname); Putc(c,macroname);
} else if (isspace(c)) { } else if (isspace(c)) {
break; break;
@ -513,7 +513,7 @@ Preprocessor_replace(DOH *s)
while ((c = Getc(s)) != EOF) { while ((c = Getc(s)) != EOF) {
switch (state) { switch (state) {
case 0: case 0:
if (isidentifier(c)) { if (isidentifier(c) || (c == '%')) {
Clear(id); Clear(id);
copy_location(s,id); copy_location(s,id);
Putc(c,id); Putc(c,id);