value_t fl_accum_julia_symbol(value_t *args, u_int32_t nargs)
{
argcount("accum-julia-symbol", nargs, 2);
ios_t *s = fl_toiostream(args[1], "accum-julia-symbol");
if (!iscprim(args[0]) || ((cprim_t*)ptr(args[0]))->type != wchartype)
type_error("accum-julia-symbol", "wchar", args[0]);
uint32_t wc = *(uint32_t*)cp_data((cprim_t*)ptr(args[0]));
ios_t str;
ios_mem(&str, 0);
while (jl_id_char(wc)) {
ios_getutf8(s, &wc);
if (wc == '!') {
uint32_t nwc;
ios_peekutf8(s, &nwc);
// make sure != is always an operator
if (nwc == '=') {
ios_ungetc('!', s);
break;
}
}
ios_pututf8(&str, wc);
if (ios_peekutf8(s, &wc) == IOS_EOF)
break;
}
ios_pututf8(&str, 0);
return symbol(normalize(str.buf));
}
value_t fl_accum_julia_symbol(fl_context_t *fl_ctx, value_t *args, uint32_t nargs)
{
argcount(fl_ctx, "accum-julia-symbol", nargs, 2);
ios_t *s = fl_toiostream(fl_ctx, args[1], "accum-julia-symbol");
if (!iscprim(args[0]) || ((cprim_t*)ptr(args[0]))->type != fl_ctx->wchartype)
type_error(fl_ctx, "accum-julia-symbol", "wchar", args[0]);
uint32_t wc = *(uint32_t*)cp_data((cprim_t*)ptr(args[0]));
ios_t str;
int allascii=1;
ios_mem(&str, 0);
do {
allascii &= (wc <= 0x7f);
ios_getutf8(s, &wc);
if (wc == '!') {
uint32_t nwc;
ios_peekutf8(s, &nwc);
// make sure != is always an operator
if (nwc == '=') {
ios_ungetc('!', s);
break;
}
}
ios_pututf8(&str, wc);
if (ios_peekutf8(s, &wc) == IOS_EOF)
break;
} while (jl_id_char(wc));
ios_pututf8(&str, 0);
return symbol(fl_ctx, allascii ? str.buf : normalize(fl_ctx, str.buf));
}
value_t fl_julia_identifier_char(value_t *args, u_int32_t nargs)
{
argcount("identifier-char?", nargs, 1);
if (!iscprim(args[0]) || ((cprim_t*)ptr(args[0]))->type != wchartype)
type_error("identifier-char?", "wchar", args[0]);
uint32_t wc = *(uint32_t*)cp_data((cprim_t*)ptr(args[0]));
return jl_id_char(wc) ? FL_T : FL_F;
}
value_t fl_julia_identifier_char(fl_context_t *fl_ctx, value_t *args, uint32_t nargs)
{
argcount(fl_ctx, "identifier-char?", nargs, 1);
if (!iscprim(args[0]) || ((cprim_t*)ptr(args[0]))->type != fl_ctx->wchartype)
type_error(fl_ctx, "identifier-char?", "wchar", args[0]);
uint32_t wc = *(uint32_t*)cp_data((cprim_t*)ptr(args[0]));
return jl_id_char(wc) ? fl_ctx->T : fl_ctx->F;
}
JL_DLLEXPORT int jl_is_identifier(char *str)
{
size_t i = 0;
uint32_t wc = u8_nextchar(str, &i);
if (!jl_id_start_char(wc))
return 0;
while ((wc = u8_nextchar(str, &i)) != 0) {
if (!jl_id_char(wc))
return 0;
}
return 1;
}