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adding srfi-98

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This commit is contained in:
Alex Shinn 2009-11-23 02:42:03 +09:00
parent 671b983214
commit cca25351fe
3 changed files with 53 additions and 2 deletions
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5
Makefile
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@ -50,7 +50,7 @@ endif
all: chibi-scheme$(EXE) libs
libs: lib/srfi/69/hash$(SO)
libs: lib/srfi/69/hash$(SO) lib/srfi/98/env$(SO)
ifeq ($(USE_BOEHM),1)
GCLDFLAGS := -lgc
@ -92,11 +92,12 @@ chibi-scheme$(EXE): main.o libchibi-scheme$(SO)
chibi-scheme-static$(EXE): main.o eval.o sexp.o
$(CC) $(XCFLAGS) $(STATICFLAGS) -o $@ $^ $(XLDFLAGS)
lib/srfi/69/hash$(SO): lib/srfi/69/hash.c $(INCLUDES)
lib/srfi/%$(SO): lib/srfi/%.c $(INCLUDES)
$(CC) $(CLIBFLAGS) $(XCPPFLAGS) $(XCFLAGS) -o $@ $< -L. -lchibi-scheme
clean:
rm -f *.o *.i *.s *.8
find lib -name \*.$(SO) -exec rm -f '{}' \;
cleaner: clean
rm -f chibi-scheme$(EXE) chibi-scheme-static$(EXE) *$(SO) *.a

5
lib/srfi/98.module Normal file
View file

@ -0,0 +1,5 @@
(define-module (srfi 98)
(export get-environment-variable get-environment-variables)
(include "srfi/98/env.so"))

45
lib/srfi/98/env.c Normal file
View file

@ -0,0 +1,45 @@
#ifdef __APPLE__
#include <crt_externs.h>
#define environ (*_NSGetEnviron())
#else
extern char **environ;
#endif
#include <chibi/eval.h>
sexp sexp_get_environment_variable (sexp ctx, sexp str) {
char *cstr;
if (! sexp_stringp(str))
return sexp_type_exception(ctx, "get-environment-variable: not a string", str);
cstr = getenv(sexp_string_data(str));
return cstr ? sexp_c_string(ctx, cstr, -1) : SEXP_FALSE;
}
sexp sexp_get_environment_variables (sexp ctx) {
int i;
char **env, *cname, *cval;
sexp_gc_var3(res, name, val);
sexp_gc_preserve3(ctx, res, name, val);
res = SEXP_NULL;
env = environ;
for (i=0; env[i]; i++) {
cname = env[i];
cval = strchr(cname, '=');
if (cval) {
name = sexp_c_string(ctx, cname, cval-cname);
val = sexp_c_string(ctx, cval+1, -1);
val = sexp_cons(ctx, name, val);
res = sexp_cons(ctx, val, res);
}
}
sexp_gc_release3(ctx);
return res;
}
sexp sexp_init_library (sexp ctx, sexp env) {
sexp_define_foreign(ctx, env, "get-environment-variable", 1, sexp_get_environment_variable);
sexp_define_foreign(ctx, env, "get-environment-variables", 0, sexp_get_environment_variables);
return SEXP_VOID;
}