source file of the GNU LilyPond music typesetter
- (c) 1997--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ (c) 1997--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
Jan Nieuwenhuizen <janneke@gnu.org>
*/
#include "international.hh"
#include "lily-lexer.hh"
#include "lily-version.hh"
-#include "lilypond-key.hh"
+#include "ly-module.hh"
#include "main.hh"
#include "output-def.hh"
#include "paper-book.hh"
#include "parser.hh"
#include "score.hh"
-#include "source.hh"
-#include "text-metrics.hh"
+#include "sources.hh"
#include "warn.hh"
+#include "program-option.hh"
#include "ly-smobs.icc"
smobify_self ();
- lexer_ = new Lily_lexer (sources_);
+ lexer_ = new Lily_lexer (sources_, this);
lexer_->unprotect ();
}
smobify_self ();
if (src.lexer_)
- lexer_ = new Lily_lexer (*src.lexer_);
-
+ {
+ lexer_ = new Lily_lexer (*src.lexer_, this);
+ }
+
lexer_->unprotect ();
}
/* Process one .ly file, or book. */
void
-Lily_parser::parse_file (std::string init, std::string name, std::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);
-
// 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;
message (_ ("Parsing..."));
- // progress_indication ("\n");
set_yydebug (0);
lexer_->new_input (init, sources_);
File_name f (name);
- std::string s = global_path.find (f.base_ + ".twy");
+ string s = global_path.find (f.base_ + ".twy");
s = gulp_file_to_string (s, false, -1);
- scm_eval_string (scm_makfrom0str (s.c_str ()));
+ 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_set_current_module (mod);
- if (!define_spots_.is_empty ())
+ 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 (std::string ly_code)
+Lily_parser::parse_string (string ly_code)
{
// 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_->is_main_input_ = true;
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 ())
+ if (!define_spots_.empty ())
{
- if (define_spots_.is_empty ()
+ 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_;
}
+void
+Lily_parser::clear ()
+{
+ if (lexer_)
+ {
+ while (lexer_->has_scope ())
+ lexer_->remove_scope ();
+ }
+
+ lexer_ = 0;
+}
+
char const *
Lily_parser::here_str0 () const
{
}
void
-Lily_parser::parser_error (std::string s)
+Lily_parser::parser_error (string s)
{
lexer_->here_input ().error (_ (s.c_str ()));
error_level_ = 1;
}
void
-Lily_parser::parser_error (Input const &i, std::string s)
+Lily_parser::parser_error (Input const &i, string s)
{
i.error (s);
error_level_ = 1;
Output_def *layout = unsmob_output_def (id);
layout = layout ? layout->clone () : new Output_def;
layout->set_variable (ly_symbol2scm ("is-layout"), SCM_BOOL_T);
- layout->parser_ = parser;
return layout;
}
Output_def *layout = unsmob_output_def (id);
layout = layout ? layout->clone () : new Output_def;
layout->set_variable (ly_symbol2scm ("is-midi"), SCM_BOOL_T);
- layout->parser_ = parser;
return layout;
}
+/* 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->set_variable (ly_symbol2scm ("is-paper"), SCM_BOOL_T);
- layout->parser_ = parser;
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 = ly_make_anonymous_module (be_safe_global);
+ id = parser->make_scope ();
else
{
- SCM nid = ly_make_anonymous_module (false);
- ly_module_copy(nid,id);
+ 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