void lexerr(MachineResult *result, ParserData *parser_data)
{
// output to console
fprintf (stderr, "%-8s%s on line %d: \"%s\"\n", "LEXERR", attribute_to_str(result->token->attribute), result->line_no, result->lexeme);
// listing file
if (parser_data->listing != NULL)
fprintf (parser_data->listing, "%-8s%-30s%s\n", "LEXERR", attribute_to_str(result->token->attribute), result->lexeme);
parser_data->result |= PARSER_RESULT_LEXERR;
}
static void dump_attributes(attribute *da, dump *ctx)
{
for(; da; da = da->next){
dump_desc_colour_newline(ctx, "attribute",
da, &da->where,
maybe_colour(ctx->fout, col_desc), 0);
dump_printf_indent(ctx, 0, " %s\n", attribute_to_str(da));
}
}
void print_type(type *ref, decl *d)
{
char buf[TYPE_STATIC_BUFSIZ];
fprintf(cc1_out, "%s",
type_to_str_r_spel(buf, ref, d ? d->spel : NULL));
if(ref->type == type_attr){
attribute *da;
for(da = ref->bits.attr; da; da = da->next){
fprintf(cc1_out, " __attribute__((%s))",
attribute_to_str(da));
}
}
}
static void print_attribute(attribute *da)
{
for(; da; da = da->next){
idt_printf("__attribute__((%s))\n", attribute_to_str(da));
gen_str_indent++;
switch(da->type){
case attr_section:
idt_printf("section \"%s\"\n", da->bits.section);
break;
case attr_nonnull:
{
unsigned long l = da->bits.nonnull_args;
idt_printf("nonnull: ");
if(l == ~0UL){
fprintf(cc1_out, "all");
}else{
const char *sep = "";
int i;
for(i = 0; i <= 32; i++)
if(l & (1 << i)){
fprintf(cc1_out, "%s%d", sep, i);
sep = ", ";
}
}
fputc('\n', cc1_out);
break;
}
default:
break;
}
gen_str_indent--;
}
}
MachineResult *get_next_token(ParserData *parser_data, int options)
{
// remember where we were last by saving source file pointer
static FILE *s;
// save current line
static char l[MAX_LINE_LENGTH_1];
static char *f;
static int i = 0;
// options for things like NOP
static int o = 0;
static MachineResult *r;
if (o & TOKEN_OPTION_NOP && r != NULL) {
o = options;
return r;
}
// grab another line
if (s != parser_data->source || f - l > MAX_LINE_LENGTH || *f == 0)
{
s = parser_data->source;
char *line = get_next_line(parser_data->source);
strcpy(l, line);
f = l;
i++;
// output line to listing file
if (parser_data->listing != NULL)
fprintf (parser_data->listing, "%-8d%s\n", i, line);
}
MachineResult result = machine_omega(f, parser_data->reserved_words, parser_data->symbol_table);
// do not increment line counter for eof
if (result.token->type == TOKEN_EOF) i--;
result.line_no = i;
MachineResult *resultPtr = (MachineResult *)malloc(sizeof(MachineResult));
memcpy(resultPtr, &result, sizeof(MachineResult));
// advance our internal pointer
f = result.f;
if (resultPtr->token->type == TOKEN_WHITESPACE)
return get_next_token(parser_data, options);
// write token to tokens file
if (parser_data->tokens != NULL) {
fprintf (parser_data->tokens, "%-10d%-20s%-20s%-6d(%s)\n", i, resultPtr->lexeme, token_type_to_str(resultPtr->token->type), resultPtr->token->attribute, attribute_to_str(resultPtr->token->attribute));
}
// handle lexical errors
if (resultPtr->token->type == TOKEN_LEXERR) {
// output errors to listing file
if (!(options & TOKEN_OPTION_SQUASH_ERRS))
lexerr(resultPtr, parser_data);
// do not return lexerr tokens
return get_next_token(parser_data, options);
}
// check for a nop
if (options & TOKEN_OPTION_NOP)
r = resultPtr;
o = options;
return resultPtr;
}
