2 lily-parser.cc -- implement Lily_parser
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2006 Han-Wen Nienhuys <hanwen@xs4all.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 #include "ly-smobs.icc"
28 Lily_parser::Lily_parser (Sources *sources)
32 default_duration_ = Duration (2, 0);
37 lexer_ = new Lily_lexer (sources_);
41 Lily_parser::Lily_parser (Lily_parser const &src)
44 sources_ = src.sources_;
45 default_duration_ = src.default_duration_;
46 error_level_ = src.error_level_;
47 output_basename_ = src.output_basename_;
51 lexer_ = new Lily_lexer (*src.lexer_);
56 Lily_parser::~Lily_parser ()
62 Lily_parser::mark_smob (SCM s)
64 Lily_parser *parser = (Lily_parser *) SCM_CELL_WORD_1 (s);
65 return (parser->lexer_) ? parser->lexer_->self_scm () : SCM_EOL;
69 Lily_parser::print_smob (SCM s, SCM port, scm_print_state*)
71 scm_puts ("#<Lily_parser ", port);
72 Lily_parser *parser = (Lily_parser *) SCM_CELL_WORD_1 (s);
74 scm_display (parser->lexer_->self_scm (), port);
76 scm_puts ("(no lexer yet)", port);
77 scm_puts (" >", port);
81 /* Process one .ly file, or book. */
83 Lily_parser::parse_file (String init, String name, String out_name)
85 if (output_backend_global == "tex")
86 try_load_text_metrics (out_name);
89 lexer_->set_identifier (ly_symbol2scm ("parser"),
91 output_basename_ = out_name;
93 lexer_->main_input_name_ = name;
95 message (_ ("Parsing..."));
96 // progress_indication ("\n");
100 lexer_->new_input (init, sources_);
103 String s = global_path.find (f.base_ + ".twy");
104 s = gulp_file_to_string (s, false, -1);
105 scm_eval_string (scm_makfrom0str (s.c_str ()));
107 /* Read .ly IN_FILE, lex, parse, write \score blocks from IN_FILE to
108 OUT_FILE (unless IN_FILE redefines output file name). */
110 SCM mod = lexer_->set_current_scope ();
114 Don't mix cyclic pointers with weak tables.
116 lexer_->set_identifier (ly_symbol2scm ("parser"),
118 ly_reexport_module (scm_current_module ());
120 scm_set_current_module (mod);
122 if (!define_spots_.is_empty ())
124 define_spots_.top ().warning (_ ("braces don't match"));
128 error_level_ = error_level_ | lexer_->error_level_;
133 Lily_parser::parse_string (String ly_code)
136 lexer_->set_identifier (ly_symbol2scm ("parser"),
139 lexer_->main_input_name_ = "<string>";
140 lexer_->is_main_input_ = true;
143 lexer_->new_input (lexer_->main_input_name_, ly_code, sources_);
145 SCM mod = lexer_->set_current_scope ();
147 scm_set_current_module (mod);
149 if (!define_spots_.is_empty ())
151 if (define_spots_.is_empty ()
153 programming_error ("define_spots_ don't match, but error_level_ not set.");
156 error_level_ = error_level_ | lexer_->error_level_;
160 Lily_parser::here_str0 () const
162 return lexer_->here_str0 ();
166 Lily_parser::parser_error (String s)
168 lexer_->here_input ().error (_ (s.c_str ()));
173 Lily_parser::parser_error (Input const &i, String s)
181 IMPLEMENT_SMOBS (Lily_parser);
182 IMPLEMENT_TYPE_P (Lily_parser, "ly:lily-parser?");
183 IMPLEMENT_DEFAULT_EQUAL_P (Lily_parser);
186 /****************************************************************
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 ("$defaultpaper");
215 Output_def *layout = unsmob_output_def (id);
217 layout = layout ? dynamic_cast<Output_def *> (layout->clone ()) : new Output_def;
218 layout->set_variable (ly_symbol2scm ("is-paper"), SCM_BOOL_T);
223 get_header (Lily_parser *parser)
225 SCM id = parser->lexer_->lookup_identifier ("$defaultheader");
226 if (!ly_is_module (id))
227 id = ly_make_anonymous_module (be_safe_global);
230 SCM nid = ly_make_anonymous_module (false);
231 ly_module_copy(nid,id);