source file of the GNU LilyPond music typesetter
- (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
- Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 1997--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ Jan Nieuwenhuizen <janneke@gnu.org>
*/
#include "lily-parser.hh"
-#include "text-metrics.hh"
+
#include "book.hh"
-#include "lilypond-key.hh"
+#include "file-name.hh"
+#include "file-path.hh"
+#include "international.hh"
+#include "lily-lexer.hh"
#include "lily-version.hh"
+#include "ly-module.hh"
#include "main.hh"
-#include "lily-lexer.hh"
#include "output-def.hh"
#include "paper-book.hh"
#include "parser.hh"
#include "score.hh"
-#include "file-name.hh"
-#include "file-path.hh"
-#include "source.hh"
+#include "sources.hh"
#include "warn.hh"
+#include "program-option.hh"
+
+#include "ly-smobs.icc"
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_, this);
+ 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_;
+ output_basename_ = src.output_basename_;
smobify_self ();
if (src.lexer_)
- lexer_ = new Lily_lexer (*src.lexer_);
-
- scm_gc_unprotect_object (lexer_->self_scm ());
+ {
+ lexer_ = new Lily_lexer (*src.lexer_, this);
+ }
+
+ lexer_->unprotect ();
}
Lily_parser::~Lily_parser ()
{
}
-#include "ly-smobs.icc"
-
-IMPLEMENT_SMOBS (Lily_parser);
-IMPLEMENT_TYPE_P (Lily_parser, "ly:lily-parser?");
-IMPLEMENT_DEFAULT_EQUAL_P (Lily_parser);
SCM
Lily_parser::mark_smob (SCM s)
{
- Lily_parser *parser = (Lily_parser*) SCM_CELL_WORD_1 (s);
+ Lily_parser *parser = (Lily_parser *) SCM_CELL_WORD_1 (s);
return (parser->lexer_) ? parser->lexer_->self_scm () : SCM_EOL;
}
int
Lily_parser::print_smob (SCM s, SCM port, scm_print_state*)
{
- scm_puts ("#<my_lily_parser ", port);
- Lily_parser *parser = (Lily_parser*) SCM_CELL_WORD_1 (s);
- (void) parser;
+ scm_puts ("#<Lily_parser ", port);
+ Lily_parser *parser = (Lily_parser *) SCM_CELL_WORD_1 (s);
+ if (parser->lexer_)
+ scm_display (parser->lexer_->self_scm (), port);
+ else
+ scm_puts ("(no lexer yet)", port);
scm_puts (" >", port);
return 1;
}
-
/* Process one .ly file, or book. */
void
-Lily_parser::parse_file (String init, String name, String out_name)
+Lily_parser::parse_file (string init, string name, string out_name)
{
- if (output_backend_global == "tex")
- {
- 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 ());
+ lexer_->set_identifier (ly_symbol2scm ("parser"), self_scm ());
output_basename_ = out_name;
-
+
lexer_->main_input_name_ = name;
- progress_indication (_ ("Parsing..."));
- progress_indication ("\n");
+ message (_ ("Parsing..."));
set_yydebug (0);
lexer_->new_input (init, sources_);
File_name f (name);
- String s = global_path.find (f.base_ + ".twy");
- s = gulp_file_to_string (s, false);
- scm_eval_string (scm_makfrom0str (s.to_str0 ()));
+ string s = global_path.find (f.base_ + ".twy");
+ s = gulp_file_to_string (s, false, -1);
+ scm_eval_string (ly_string2scm (s));
/* 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 ();
- if (!define_spots_.is_empty ())
+ /*
+ 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_.empty ())
{
- define_spots_.top ().warning (_ ("Braces don't match"));
+ define_spots_.back ().warning (_ ("braces do not match"));
error_level_ = 1;
}
error_level_ = error_level_ | lexer_->error_level_;
- lexer_ = 0;
+ clear ();
}
void
-Lily_parser::parse_string (String ly_code)
+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 $parser
lexer_->set_identifier (ly_symbol2scm ("parser"),
self_scm ());
-
- lexer_->main_input_name_ = "<string>";
- lexer_->is_main_input_ = true;
- set_yydebug (0);
+ lexer_->main_input_name_ = "<string>";
+ lexer_->is_main_input_ = true;
lexer_->new_input (lexer_->main_input_name_, ly_code, sources_);
+
+ SCM mod = lexer_->set_current_scope ();
do_yyparse ();
-
- if (!define_spots_.is_empty ())
+ scm_set_current_module (mod);
+
+ if (!define_spots_.empty ())
{
- if (define_spots_.is_empty()
- && !error_level_ )
+ if (define_spots_.empty ()
+ && !error_level_)
programming_error ("define_spots_ don't match, but error_level_ not set.");
}
error_level_ = error_level_ | lexer_->error_level_;
+}
- scm_set_current_module (oldmod);
- lexer_ = 0;
+void
+Lily_parser::clear ()
+{
+ if (lexer_)
+ {
+ while (lexer_->has_scope ())
+ lexer_->remove_scope ();
+ }
+
+ lexer_ = 0;
}
char const *
}
void
-Lily_parser::parser_error (String s)
+Lily_parser::parser_error (string s)
{
- lexer_->here_input ().error (s);
+ lexer_->here_input ().error (_ (s.c_str ()));
error_level_ = 1;
}
void
-Lily_parser::parser_error (Input const& i, String s)
+Lily_parser::parser_error (Input const &i, string s)
{
i.error (s);
error_level_ = 1;
}
-/****************************************************************/
-Output_def*
+IMPLEMENT_SMOBS (Lily_parser);
+IMPLEMENT_TYPE_P (Lily_parser, "ly:lily-parser?");
+IMPLEMENT_DEFAULT_EQUAL_P (Lily_parser);
+
+
+/****************************************************************
+ OUTPUT-DEF
+ ****************************************************************/
+
+Output_def *
get_layout (Lily_parser *parser)
{
SCM id = parser->lexer_->lookup_identifier ("$defaultlayout");
Output_def *layout = unsmob_output_def (id);
layout = layout ? layout->clone () : new Output_def;
layout->set_variable (ly_symbol2scm ("is-layout"), SCM_BOOL_T);
-
+
return layout;
}
-
-Output_def*
+Output_def *
get_midi (Lily_parser *parser)
{
SCM id = parser->lexer_->lookup_identifier ("$defaultmidi");
return layout;
}
-
-Output_def*
+/* Return a copy of the top of $papers stack, or $defaultpaper if the
+ * stack is empty */
+Output_def *
get_paper (Lily_parser *parser)
{
- SCM id = parser->lexer_->lookup_identifier ("$defaultpaper");
- Output_def *layout = unsmob_output_def (id);
+ SCM papers = parser->lexer_->lookup_identifier ("$papers");
+ Output_def *layout = ((papers == SCM_UNDEFINED) || scm_is_null (papers)) ?
+ 0 : unsmob_output_def (scm_car (papers));
+ SCM default_paper = parser->lexer_->lookup_identifier ("$defaultpaper");
+ layout = layout ? layout : unsmob_output_def (default_paper);
- layout = layout ? dynamic_cast<Output_def*> (layout->clone ()) : new Output_def;
+ layout = layout ? dynamic_cast<Output_def *> (layout->clone ()) : new Output_def;
layout->set_variable (ly_symbol2scm ("is-paper"), SCM_BOOL_T);
return layout;
}
+/* Initialize (reset) the $papers stack */
+void
+init_papers (Lily_parser *parser)
+{
+ parser->lexer_->set_identifier (ly_symbol2scm ("$papers"), SCM_EOL);
+}
+
+/* Push a paper on top of $papers stack */
+void
+push_paper (Lily_parser *parser, Output_def *paper)
+{
+ parser->lexer_->set_identifier (ly_symbol2scm ("$papers"),
+ scm_cons (paper->self_scm (),
+ parser->lexer_->lookup_identifier ("$papers")));
+}
+
+/* Pop a paper from $papers stack */
+void
+pop_paper (Lily_parser *parser)
+{
+ if (! scm_is_null (parser->lexer_->lookup_identifier ("$papers")))
+ parser->lexer_->set_identifier (ly_symbol2scm ("$papers"),
+ scm_cdr (parser->lexer_->lookup_identifier ("$papers")));
+}
+
+/* Change the paper on top of $papers stack */
+void
+set_paper (Lily_parser *parser, Output_def *paper)
+{
+ scm_set_car_x (parser->lexer_->lookup_identifier ("$papers"), paper->self_scm ());
+}
+
+SCM
+get_header (Lily_parser *parser)
+{
+ SCM id = parser->lexer_->lookup_identifier ("$defaultheader");
+ if (!ly_is_module (id))
+ id = parser->make_scope ();
+ else
+ {
+ SCM nid = parser->make_scope ();
+ ly_module_copy (nid, id);
+ id = nid;
+ }
+
+ return id;
+}
+
+SCM
+Lily_parser::make_scope () const
+{
+ SCM module = ly_make_anonymous_module (be_safe_global);
+ return module;
+}
projects / lilypond.git / blobdiff