Lily_parser::Lily_parser (Sources *sources)
{
- book_count_ = 0;
- score_count_ = 0;
lexer_ = 0;
sources_ = sources;
default_duration_ = Duration (2, 0);
error_level_ = 0;
- last_beam_start_ = SCM_EOL;
smobify_self ();
+
+ lexer_ = new Lily_lexer (sources_);
+ lexer_->unprotect ();
}
Lily_parser::Lily_parser (Lily_parser const &src)
{
- book_count_ = src.book_count_;
- score_count_ = src.score_count_;
lexer_ = 0;
sources_ = src.sources_;
default_duration_ = src.default_duration_;
error_level_ = src.error_level_;
- last_beam_start_ = src.last_beam_start_;
smobify_self ();
if (src.lexer_)
lexer_ = new Lily_lexer (*src.lexer_);
- scm_gc_unprotect_object (lexer_->self_scm ());
+ lexer_->unprotect ();
}
Lily_parser::~Lily_parser ()
int
Lily_parser::print_smob (SCM s, SCM port, scm_print_state*)
{
- scm_puts ("#<my_lily_parser ", port);
+ scm_puts ("#<Lily_parser ", port);
Lily_parser *parser = (Lily_parser *) SCM_CELL_WORD_1 (s);
- (void) parser;
+ if (parser->lexer_)
+ scm_display (parser->lexer_->self_scm (), port);
+ else
+ scm_puts ("(no lexer yet)", port);
scm_puts (" >", port);
return 1;
}
Lily_parser::parse_file (String init, String name, String out_name)
{
if (output_backend_global == "tex")
- {
- try_load_text_metrics (out_name);
- }
+ try_load_text_metrics (out_name);
- lexer_ = new Lily_lexer (sources_);
- scm_gc_unprotect_object (lexer_->self_scm ());
// TODO: use $parser
lexer_->set_identifier (ly_symbol2scm ("parser"),
self_scm ());
/* Read .ly IN_FILE, lex, parse, write \score blocks from IN_FILE to
OUT_FILE (unless IN_FILE redefines output file name). */
+
+ SCM mod = lexer_->set_current_scope ();
do_yyparse ();
+ /*
+ Don't mix cyclic pointers with weak tables.
+ */
+ lexer_->set_identifier (ly_symbol2scm ("parser"),
+ SCM_EOL);
+ ly_reexport_module (scm_current_module ());
+
+ scm_set_current_module (mod);
+
if (!define_spots_.is_empty ())
{
define_spots_.top ().warning (_ ("braces don't match"));
void
Lily_parser::parse_string (String ly_code)
{
- Lily_lexer *parent = lexer_;
- lexer_ = (parent == 0 ? new Lily_lexer (sources_)
- : new Lily_lexer (*parent));
- scm_gc_unprotect_object (lexer_->self_scm ());
-
- SCM oldmod = scm_current_module ();
- scm_set_current_module (scm_car (lexer_->scopes_));
-
// TODO: use $parser
lexer_->set_identifier (ly_symbol2scm ("parser"),
self_scm ());
set_yydebug (0);
lexer_->new_input (lexer_->main_input_name_, ly_code, sources_);
+
+ SCM mod = lexer_->set_current_scope ();
do_yyparse ();
+ scm_set_current_module (mod);
if (!define_spots_.is_empty ())
{
}
error_level_ = error_level_ | lexer_->error_level_;
-
- scm_set_current_module (oldmod);
- lexer_ = 0;
}
char const *
void
Lily_parser::parser_error (String s)
{
- /* FIXME: cannot otherwise internationalize this bison warning. */
- (void) _i ("syntax error, unexpected ");
lexer_->here_input ().error (_ (s.to_str0 ()));
error_level_ = 1;
}
return layout;
}
+SCM
+get_header (Lily_parser *parser)
+{
+ SCM id = parser->lexer_->lookup_identifier ("$defaultheader");
+ if (!ly_is_module (id))
+ id = ly_make_anonymous_module (be_safe_global);
+ else
+ {
+ SCM nid = ly_make_anonymous_module (false);
+ ly_module_copy(nid,id);
+ id = nid;
+ }
+
+ return id;
+}