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);
34 last_beam_start_ = SCM_EOL;
39 Lily_parser::Lily_parser (Lily_parser const &src)
41 book_count_ = src.book_count_;
42 score_count_ = src.score_count_;
44 sources_ = src.sources_;
45 default_duration_ = src.default_duration_;
46 error_level_ = src.error_level_;
47 last_beam_start_ = src.last_beam_start_;
51 lexer_ = new Lily_lexer (*src.lexer_);
53 scm_gc_unprotect_object (lexer_->self_scm ());
56 Lily_parser::~Lily_parser ()
60 #include "ly-smobs.icc"
62 IMPLEMENT_SMOBS (Lily_parser);
63 IMPLEMENT_TYPE_P (Lily_parser, "ly:lily-parser?");
64 IMPLEMENT_DEFAULT_EQUAL_P (Lily_parser);
67 Lily_parser::mark_smob (SCM s)
69 Lily_parser *parser = (Lily_parser *) SCM_CELL_WORD_1 (s);
70 return (parser->lexer_) ? parser->lexer_->self_scm () : SCM_EOL;
74 Lily_parser::print_smob (SCM s, SCM port, scm_print_state*)
76 scm_puts ("#<my_lily_parser ", port);
77 Lily_parser *parser = (Lily_parser *) SCM_CELL_WORD_1 (s);
79 scm_puts (" >", port);
83 /* Process one .ly file, or book. */
85 Lily_parser::parse_file (String init, String name, String out_name)
87 if (output_backend_global == "tex")
89 try_load_text_metrics (out_name);
92 lexer_ = new Lily_lexer (sources_);
93 scm_gc_unprotect_object (lexer_->self_scm ());
95 lexer_->set_identifier (ly_symbol2scm ("parser"),
97 output_basename_ = out_name;
99 lexer_->main_input_name_ = name;
101 message (_ ("Parsing..."));
102 // progress_indication ("\n");
106 lexer_->new_input (init, sources_);
109 String s = global_path.find (f.base_ + ".twy");
110 s = gulp_file_to_string (s, false);
111 scm_eval_string (scm_makfrom0str (s.to_str0 ()));
113 /* Read .ly IN_FILE, lex, parse, write \score blocks from IN_FILE to
114 OUT_FILE (unless IN_FILE redefines output file name). */
117 if (!define_spots_.is_empty ())
119 define_spots_.top ().warning (_ ("braces don't match"));
123 error_level_ = error_level_ | lexer_->error_level_;
128 Lily_parser::parse_string (String ly_code)
130 Lily_lexer *parent = lexer_;
131 lexer_ = (parent == 0 ? new Lily_lexer (sources_)
132 : new Lily_lexer (*parent));
133 scm_gc_unprotect_object (lexer_->self_scm ());
135 SCM oldmod = scm_current_module ();
136 scm_set_current_module (scm_car (lexer_->scopes_));
139 lexer_->set_identifier (ly_symbol2scm ("parser"),
142 lexer_->main_input_name_ = "<string>";
143 lexer_->is_main_input_ = true;
146 lexer_->new_input (lexer_->main_input_name_, ly_code, sources_);
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_;
158 scm_set_current_module (oldmod);
163 Lily_parser::here_str0 () const
165 return lexer_->here_str0 ();
169 Lily_parser::parser_error (String s)
171 lexer_->here_input ().error (_ (s.to_str0 ()));
176 Lily_parser::parser_error (Input const &i, String s)
182 /****************************************************************/
185 get_layout (Lily_parser *parser)
187 SCM id = parser->lexer_->lookup_identifier ("$defaultlayout");
188 Output_def *layout = unsmob_output_def (id);
189 layout = layout ? layout->clone () : new Output_def;
190 layout->set_variable (ly_symbol2scm ("is-layout"), SCM_BOOL_T);
196 get_midi (Lily_parser *parser)
198 SCM id = parser->lexer_->lookup_identifier ("$defaultmidi");
199 Output_def *layout = unsmob_output_def (id);
200 layout = layout ? layout->clone () : new Output_def;
201 layout->set_variable (ly_symbol2scm ("is-midi"), SCM_BOOL_T);
206 get_paper (Lily_parser *parser)
208 SCM id = parser->lexer_->lookup_identifier ("$defaultpaper");
209 Output_def *layout = unsmob_output_def (id);
211 layout = layout ? dynamic_cast<Output_def *> (layout->clone ()) : new Output_def;
212 layout->set_variable (ly_symbol2scm ("is-paper"), SCM_BOOL_T);