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#!/usr/bin/nickle
typedef struct {
string type;
string c_name;
string lisp_name;
} builtin_t;
string[string] type_map = {
"lambda" => "F_LAMBDA",
"nlambda" => "NLAMBDA",
"lexpr" => "F_LEXPR",
"macro" => "MACRO",
};
builtin_t
read_builtin(file f) {
string line = File::fgets(f);
string[*] tokens = String::wordsplit(line, " \t");
return (builtin_t) {
.type = dim(tokens) > 0 ? type_map[tokens[0]] : "#",
.c_name = dim(tokens) > 1 ? tokens[1] : "#",
.lisp_name = dim(tokens) > 2 ? tokens[2] : tokens[1]
};
}
builtin_t[*]
read_builtins(file f) {
builtin_t[...] builtins = {};
while (!File::end(f)) {
builtin_t b = read_builtin(f);
if (b.type[0] != '#')
builtins[dim(builtins)] = b;
}
return builtins;
}
void
dump_ids(builtin_t[*] builtins) {
printf("#ifdef AO_LISP_BUILTIN_ID\n");
printf("#undef AO_LISP_BUILTIN_ID\n");
printf("enum ao_lisp_builtin_id {\n");
for (int i = 0; i < dim(builtins); i++)
printf("\tbuiltin_%s,\n", builtins[i].c_name);
printf("\t_builtin_last\n");
printf("};\n");
printf("#endif /* AO_LISP_BUILTIN_ID */\n");
}
void
dump_casename(builtin_t[*] builtins) {
printf("#ifdef AO_LISP_BUILTIN_CASENAME\n");
printf("#undef AO_LISP_BUILTIN_CASENAME\n");
printf("static char *ao_lisp_builtin_name(enum ao_lisp_builtin_id b) {\n");
printf("\tswitch(b) {\n");
for (int i = 0; i < dim(builtins); i++)
printf("\tcase builtin_%s: return ao_lisp_poly_atom(_atom(%s))->name;\n",
builtins[i].c_name, builtins[i].c_name);
printf("\tdefault: return \"???\";\n");
printf("\t}\n");
printf("}\n");
printf("#endif /* AO_LISP_BUILTIN_CASENAME */\n");
}
void
cify_lisp(string l) {
for (int j = 0; j < String::length(l); j++) {
int c= l[j];
if (Ctype::isalnum(c) || c == '_')
printf("%c", c);
else
printf("%02x", c);
}
}
void
dump_arrayname(builtin_t[*] builtins) {
printf("#ifdef AO_LISP_BUILTIN_ARRAYNAME\n");
printf("#undef AO_LISP_BUILTIN_ARRAYNAME\n");
printf("static const ao_poly builtin_names[] = {\n");
for (int i = 0; i < dim(builtins); i++) {
printf("\t[builtin_%s] = _ao_lisp_atom_",
builtins[i].c_name);
cify_lisp(builtins[i].lisp_name);
printf(",\n");
}
printf("};\n");
printf("#endif /* AO_LISP_BUILTIN_ARRAYNAME */\n");
}
void
dump_funcs(builtin_t[*] builtins) {
printf("#ifdef AO_LISP_BUILTIN_FUNCS\n");
printf("#undef AO_LISP_BUILTIN_FUNCS\n");
printf("const ao_lisp_func_t ao_lisp_builtins[] = {\n");
for (int i = 0; i < dim(builtins); i++) {
printf("\t[builtin_%s] = ao_lisp_do_%s,\n",
builtins[i].c_name,
builtins[i].c_name);
}
printf("};\n");
printf("#endif /* AO_LISP_BUILTIN_FUNCS */\n");
}
void
dump_decls(builtin_t[*] builtins) {
printf("#ifdef AO_LISP_BUILTIN_DECLS\n");
printf("#undef AO_LISP_BUILTIN_DECLS\n");
for (int i = 0; i < dim(builtins); i++) {
printf("ao_poly\n");
printf("ao_lisp_do_%s(struct ao_lisp_cons *cons);\n",
builtins[i].c_name);
}
printf("#endif /* AO_LISP_BUILTIN_DECLS */\n");
}
void
dump_consts(builtin_t[*] builtins) {
printf("#ifdef AO_LISP_BUILTIN_CONSTS\n");
printf("#undef AO_LISP_BUILTIN_CONSTS\n");
printf("struct builtin_func funcs[] = {\n");
for (int i = 0; i < dim(builtins); i++) {
printf ("\t{ .name = \"%s\", .args = AO_LISP_FUNC_%s, .func = builtin_%s },\n",
builtins[i].lisp_name, builtins[i].type, builtins[i].c_name);
}
printf("};\n");
printf("#endif /* AO_LISP_BUILTIN_CONSTS */\n");
}
void main() {
if (dim(argv) < 2) {
File::fprintf(stderr, "usage: %s <file>\n", argv[0]);
exit(1);
}
twixt(file f = File::open(argv[1], "r"); File::close(f)) {
builtin_t[*] builtins = read_builtins(f);
dump_ids(builtins);
dump_casename(builtins);
dump_arrayname(builtins);
dump_funcs(builtins);
dump_decls(builtins);
dump_consts(builtins);
}
}
main();
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