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#!/usr/bin/nickle
typedef struct {
string feature;
string type;
string c_name;
string[*] lisp_names;
} builtin_t;
string[string] type_map = {
"lambda" => "LAMBDA",
"nlambda" => "NLAMBDA",
"macro" => "MACRO",
"f_lambda" => "F_LAMBDA",
"atom" => "atom",
"feature" => "feature",
};
string[*]
make_lisp(string[*] tokens)
{
string[...] lisp = {};
if (dim(tokens) < 4)
return (string[1]) { tokens[dim(tokens) - 1] };
return (string[dim(tokens)-3]) { [i] = tokens[i+3] };
}
builtin_t
read_builtin(file f) {
string line = File::fgets(f);
string[*] tokens = String::wordsplit(line, " \t");
return (builtin_t) {
.feature = dim(tokens) > 0 ? tokens[0] : "#",
.type = dim(tokens) > 1 ? type_map[tokens[1]] : "#",
.c_name = dim(tokens) > 2 ? tokens[2] : "#",
.lisp_names = make_lisp(tokens),
};
}
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_ifdef(builtin_t builtin)
{
if (builtin.feature != "all")
printf("#ifdef AO_SCHEME_FEATURE_%s\n", builtin.feature);
}
void
dump_endif(builtin_t builtin)
{
if (builtin.feature != "all")
printf("#endif /* AO_SCHEME_FEATURE_%s */\n", builtin.feature);
}
bool is_atom(builtin_t b) = b.type == "atom";
bool is_func(builtin_t b) = b.type != "atom" && b.type != "feature";
bool is_feature(builtin_t b) = b.type == "feature";
void
dump_ids(builtin_t[*] builtins) {
printf("#ifdef AO_SCHEME_BUILTIN_ID\n");
printf("#undef AO_SCHEME_BUILTIN_ID\n");
printf("enum ao_scheme_builtin_id {\n");
for (int i = 0; i < dim(builtins); i++)
if (is_func(builtins[i])) {
dump_ifdef(builtins[i]);
printf("\tbuiltin_%s,\n", builtins[i].c_name);
dump_endif(builtins[i]);
}
printf("\t_builtin_last\n");
printf("};\n");
printf("#endif /* AO_SCHEME_BUILTIN_ID */\n");
}
void
dump_casename(builtin_t[*] builtins) {
printf("#ifdef AO_SCHEME_BUILTIN_CASENAME\n");
printf("#undef AO_SCHEME_BUILTIN_CASENAME\n");
printf("static char *ao_scheme_builtin_name(enum ao_scheme_builtin_id b) {\n");
printf("\tswitch(b) {\n");
for (int i = 0; i < dim(builtins); i++)
if (is_func(builtins[i])) {
dump_ifdef(builtins[i]);
printf("\tcase builtin_%s: return ao_scheme_poly_atom(_atom(\"%s\"))->name;\n",
builtins[i].c_name, builtins[i].lisp_names[0]);
dump_endif(builtins[i]);
}
printf("\tdefault: return (char *) \"???\";\n");
printf("\t}\n");
printf("}\n");
printf("#endif /* AO_SCHEME_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_SCHEME_BUILTIN_ARRAYNAME\n");
printf("#undef AO_SCHEME_BUILTIN_ARRAYNAME\n");
printf("static const ao_poly builtin_names[] = {\n");
for (int i = 0; i < dim(builtins); i++) {
if (is_func(builtins[i])) {
dump_ifdef(builtins[i]);
printf("\t[builtin_%s] = _ao_scheme_atom_",
builtins[i].c_name);
cify_lisp(builtins[i].lisp_names[0]);
printf(",\n");
dump_endif(builtins[i]);
}
}
printf("};\n");
printf("#endif /* AO_SCHEME_BUILTIN_ARRAYNAME */\n");
}
void
dump_funcs(builtin_t[*] builtins) {
printf("#ifdef AO_SCHEME_BUILTIN_FUNCS\n");
printf("#undef AO_SCHEME_BUILTIN_FUNCS\n");
printf("const ao_scheme_func_t ao_scheme_builtins[] = {\n");
for (int i = 0; i < dim(builtins); i++) {
if (is_func(builtins[i])) {
dump_ifdef(builtins[i]);
printf("\t[builtin_%s] = ao_scheme_do_%s,\n",
builtins[i].c_name,
builtins[i].c_name);
dump_endif(builtins[i]);
}
}
printf("};\n");
printf("#endif /* AO_SCHEME_BUILTIN_FUNCS */\n");
}
void
dump_decls(builtin_t[*] builtins) {
printf("#ifdef AO_SCHEME_BUILTIN_DECLS\n");
printf("#undef AO_SCHEME_BUILTIN_DECLS\n");
for (int i = 0; i < dim(builtins); i++) {
if (is_func(builtins[i])) {
dump_ifdef(builtins[i]);
printf("ao_poly\n");
printf("ao_scheme_do_%s(struct ao_scheme_cons *cons);\n",
builtins[i].c_name);
dump_endif(builtins[i]);
}
}
printf("#endif /* AO_SCHEME_BUILTIN_DECLS */\n");
}
void
dump_consts(builtin_t[*] builtins) {
printf("#ifdef AO_SCHEME_BUILTIN_CONSTS\n");
printf("#undef AO_SCHEME_BUILTIN_CONSTS\n");
printf("struct builtin_func funcs[] = {\n");
for (int i = 0; i < dim(builtins); i++) {
if (is_func(builtins[i])) {
dump_ifdef(builtins[i]);
for (int j = 0; j < dim(builtins[i].lisp_names); j++) {
printf ("\t{ .feature = \"%s\", .name = \"%s\", .args = AO_SCHEME_FUNC_%s, .func = builtin_%s },\n",
builtins[i].feature,
builtins[i].lisp_names[j],
builtins[i].type,
builtins[i].c_name);
}
dump_endif(builtins[i]);
}
}
printf("};\n");
printf("#endif /* AO_SCHEME_BUILTIN_CONSTS */\n");
}
void
dump_atoms(builtin_t[*] builtins) {
printf("#ifdef AO_SCHEME_BUILTIN_ATOMS\n");
printf("#undef AO_SCHEME_BUILTIN_ATOMS\n");
for (int i = 0; i < dim(builtins); i++) {
if (!is_feature(builtins[i])) {
for (int j = 0; j < dim(builtins[i].lisp_names); j++) {
printf("#define _ao_scheme_atom_");
cify_lisp(builtins[i].lisp_names[j]);
printf(" _atom(\"%s\")\n", builtins[i].lisp_names[j]);
}
}
}
printf("#endif /* AO_SCHEME_BUILTIN_ATOMS */\n");
}
void
dump_atom_names(builtin_t[*] builtins) {
printf("#ifdef AO_SCHEME_BUILTIN_ATOM_NAMES\n");
printf("#undef AO_SCHEME_BUILTIN_ATOM_NAMES\n");
printf("static struct builtin_atom atoms[] = {\n");
for (int i = 0; i < dim(builtins); i++) {
if (is_atom(builtins[i])) {
for (int j = 0; j < dim(builtins[i].lisp_names); j++) {
printf("\t{ .feature = \"%s\", .name = \"%s\" },\n",
builtins[i].feature,
builtins[i].lisp_names[j]);
}
}
}
printf("};\n");
printf("#endif /* AO_SCHEME_BUILTIN_ATOM_NAMES */\n");
}
void
dump_syntax_atoms(builtin_t[*] builtins) {
printf("#ifdef AO_SCHEME_BUILTIN_SYNTAX_ATOMS\n");
printf("#undef AO_SCHEME_BUILTIN_SYNTAX_ATOMS\n");
printf("static const char *syntax_atoms[] = {\n");
for (int i = 0; i < dim(builtins); i++) {
if (is_atom(builtins[i])) {
for (int j = 0; j < dim(builtins[i].lisp_names); j++) {
printf("\t\"%s\",\n", builtins[i].lisp_names[j]);
}
}
}
printf("};\n");
printf("#endif /* AO_SCHEME_BUILTIN_SYNTAX_ATOMS */\n");
}
bool
has_feature(string[*] features, string feature)
{
for (int i = 0; i < dim(features); i++)
if (features[i] == feature)
return true;
return false;
}
void
dump_features(builtin_t[*] builtins) {
string[...] features = {};
printf("#ifdef AO_SCHEME_BUILTIN_FEATURES\n");
for (int i = 0; i < dim(builtins); i++) {
if (builtins[i].feature != "all") {
string feature = builtins[i].feature;
if (!has_feature(features, feature)) {
features[dim(features)] = feature;
printf("#ifndef AO_SCHEME_NO_FEATURE_%s\n", feature);
printf("#define AO_SCHEME_FEATURE_%s\n", feature);
printf("#endif /* AO_SCHEME_NO_FEATURE_%s */\n", feature);
}
}
}
printf("#endif /* AO_SCHEME_BUILTIN_FEATURES */\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);
printf("/* %d builtins */\n", dim(builtins));
dump_ids(builtins);
dump_casename(builtins);
dump_arrayname(builtins);
dump_funcs(builtins);
dump_decls(builtins);
dump_consts(builtins);
dump_atoms(builtins);
dump_atom_names(builtins);
dump_syntax_atoms(builtins);
dump_features(builtins);
}
}
main();
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