2 lily-parser.cc -- implement Lily_parser
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
7 Jan Nieuwenhuizen <janneke@gnu.org>
10 #include "lily-parser.hh"
11 #include "text-metrics.hh"
13 #include "lilypond-key.hh"
14 #include "lily-version.hh"
16 #include "lily-lexer.hh"
17 #include "output-def.hh"
18 #include "paper-book.hh"
21 #include "file-name.hh"
22 #include "file-path.hh"
26 Lily_parser::Lily_parser (Sources *sources)
32 default_duration_ = Duration (2, 0);
37 lexer_ = new Lily_lexer (sources_);
38 scm_gc_unprotect_object (lexer_->self_scm ());
41 Lily_parser::Lily_parser (Lily_parser const &src)
43 book_count_ = src.book_count_;
44 score_count_ = src.score_count_;
46 sources_ = src.sources_;
47 default_duration_ = src.default_duration_;
48 error_level_ = src.error_level_;
52 lexer_ = new Lily_lexer (*src.lexer_);
54 scm_gc_unprotect_object (lexer_->self_scm ());
57 Lily_parser::~Lily_parser ()
61 #include "ly-smobs.icc"
63 IMPLEMENT_SMOBS (Lily_parser);
64 IMPLEMENT_TYPE_P (Lily_parser, "ly:lily-parser?");
65 IMPLEMENT_DEFAULT_EQUAL_P (Lily_parser);
68 Lily_parser::mark_smob (SCM s)
70 Lily_parser *parser = (Lily_parser *) SCM_CELL_WORD_1 (s);
71 return (parser->lexer_) ? parser->lexer_->self_scm () : SCM_EOL;
75 Lily_parser::print_smob (SCM s, SCM port, scm_print_state*)
77 scm_puts ("#<Lily_parser ", port);
78 Lily_parser *parser = (Lily_parser *) SCM_CELL_WORD_1 (s);
80 scm_display (parser->lexer_->self_scm (), port);
82 scm_puts ("(no lexer yet)", port);
83 scm_puts (" >", port);
87 /* Process one .ly file, or book. */
89 Lily_parser::parse_file (String init, String name, String out_name)
91 if (output_backend_global == "tex")
93 try_load_text_metrics (out_name);
97 lexer_->set_identifier (ly_symbol2scm ("parser"),
99 output_basename_ = out_name;
101 lexer_->main_input_name_ = name;
103 message (_ ("Parsing..."));
104 // progress_indication ("\n");
108 lexer_->new_input (init, sources_);
111 String s = global_path.find (f.base_ + ".twy");
112 s = gulp_file_to_string (s, false);
113 scm_eval_string (scm_makfrom0str (s.to_str0 ()));
115 /* Read .ly IN_FILE, lex, parse, write \score blocks from IN_FILE to
116 OUT_FILE (unless IN_FILE redefines output file name). */
118 SCM mod = lexer_->set_current_scope ();
122 Don't mix cyclic pointers with weak tables.
124 lexer_->set_identifier (ly_symbol2scm ("parser"),
126 ly_reexport_module (scm_current_module ());
129 scm_set_current_module (mod);
131 if (!define_spots_.is_empty ())
133 define_spots_.top ().warning (_ ("braces don't match"));
137 error_level_ = error_level_ | lexer_->error_level_;
142 Lily_parser::parse_string (String ly_code)
145 lexer_->set_identifier (ly_symbol2scm ("parser"),
148 lexer_->main_input_name_ = "<string>";
149 lexer_->is_main_input_ = true;
152 lexer_->new_input (lexer_->main_input_name_, ly_code, sources_);
154 SCM mod = lexer_->set_current_scope ();
156 scm_set_current_module (mod);
158 if (!define_spots_.is_empty ())
160 if (define_spots_.is_empty ()
162 programming_error ("define_spots_ don't match, but error_level_ not set.");
165 error_level_ = error_level_ | lexer_->error_level_;
169 Lily_parser::here_str0 () const
171 return lexer_->here_str0 ();
175 Lily_parser::parser_error (String s)
177 lexer_->here_input ().error (_ (s.to_str0 ()));
182 Lily_parser::parser_error (Input const &i, String s)
188 /****************************************************************/
191 get_layout (Lily_parser *parser)
193 SCM id = parser->lexer_->lookup_identifier ("$defaultlayout");
194 Output_def *layout = unsmob_output_def (id);
195 layout = layout ? layout->clone () : new Output_def;
196 layout->set_variable (ly_symbol2scm ("is-layout"), SCM_BOOL_T);
202 get_midi (Lily_parser *parser)
204 SCM id = parser->lexer_->lookup_identifier ("$defaultmidi");
205 Output_def *layout = unsmob_output_def (id);
206 layout = layout ? layout->clone () : new Output_def;
207 layout->set_variable (ly_symbol2scm ("is-midi"), SCM_BOOL_T);
212 get_paper (Lily_parser *parser)
214 SCM id = parser->lexer_->lookup_identifier ("$defaultpaper");
215 Output_def *layout = unsmob_output_def (id);
217 layout = layout ? dynamic_cast<Output_def *> (layout->clone ()) : new Output_def;
218 layout->set_variable (ly_symbol2scm ("is-paper"), SCM_BOOL_T);