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);
38 Lily_parser::Lily_parser (Lily_parser const &src)
40 book_count_ = src.book_count_;
41 score_count_ = src.score_count_;
43 sources_ = src.sources_;
44 default_duration_ = src.default_duration_;
45 error_level_ = src.error_level_;
49 lexer_ = new Lily_lexer (*src.lexer_);
51 scm_gc_unprotect_object (lexer_->self_scm ());
54 Lily_parser::~Lily_parser ()
58 #include "ly-smobs.icc"
60 IMPLEMENT_SMOBS (Lily_parser);
61 IMPLEMENT_TYPE_P (Lily_parser, "ly:lily-parser?");
62 IMPLEMENT_DEFAULT_EQUAL_P (Lily_parser);
65 Lily_parser::mark_smob (SCM s)
67 Lily_parser *parser = (Lily_parser *) SCM_CELL_WORD_1 (s);
68 return (parser->lexer_) ? parser->lexer_->self_scm () : SCM_EOL;
72 Lily_parser::print_smob (SCM s, SCM port, scm_print_state*)
74 scm_puts ("#<my_lily_parser ", port);
75 Lily_parser *parser = (Lily_parser *) SCM_CELL_WORD_1 (s);
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")
87 try_load_text_metrics (out_name);
90 lexer_ = new Lily_lexer (sources_);
91 scm_gc_unprotect_object (lexer_->self_scm ());
93 lexer_->set_identifier (ly_symbol2scm ("parser"),
95 output_basename_ = out_name;
97 lexer_->main_input_name_ = name;
99 message (_ ("Parsing..."));
100 // progress_indication ("\n");
104 lexer_->new_input (init, sources_);
107 String s = global_path.find (f.base_ + ".twy");
108 s = gulp_file_to_string (s, false);
109 scm_eval_string (scm_makfrom0str (s.to_str0 ()));
111 /* Read .ly IN_FILE, lex, parse, write \score blocks from IN_FILE to
112 OUT_FILE (unless IN_FILE redefines output file name). */
115 if (!define_spots_.is_empty ())
117 define_spots_.top ().warning (_ ("braces don't match"));
121 error_level_ = error_level_ | lexer_->error_level_;
126 Lily_parser::parse_string (String ly_code)
128 Lily_lexer *parent = lexer_;
129 lexer_ = (parent == 0 ? new Lily_lexer (sources_)
130 : new Lily_lexer (*parent));
131 scm_gc_unprotect_object (lexer_->self_scm ());
133 SCM oldmod = scm_current_module ();
134 scm_set_current_module (scm_car (lexer_->scopes_));
137 lexer_->set_identifier (ly_symbol2scm ("parser"),
140 lexer_->main_input_name_ = "<string>";
141 lexer_->is_main_input_ = true;
144 lexer_->new_input (lexer_->main_input_name_, ly_code, sources_);
147 if (!define_spots_.is_empty ())
149 if (define_spots_.is_empty ()
151 programming_error ("define_spots_ don't match, but error_level_ not set.");
154 error_level_ = error_level_ | lexer_->error_level_;
156 scm_set_current_module (oldmod);
161 Lily_parser::here_str0 () const
163 return lexer_->here_str0 ();
167 Lily_parser::parser_error (String s)
169 lexer_->here_input ().error (_ (s.to_str0 ()));
174 Lily_parser::parser_error (Input const &i, String s)
180 /****************************************************************/
183 get_layout (Lily_parser *parser)
185 SCM id = parser->lexer_->lookup_identifier ("$defaultlayout");
186 Output_def *layout = unsmob_output_def (id);
187 layout = layout ? layout->clone () : new Output_def;
188 layout->set_variable (ly_symbol2scm ("is-layout"), SCM_BOOL_T);
194 get_midi (Lily_parser *parser)
196 SCM id = parser->lexer_->lookup_identifier ("$defaultmidi");
197 Output_def *layout = unsmob_output_def (id);
198 layout = layout ? layout->clone () : new Output_def;
199 layout->set_variable (ly_symbol2scm ("is-midi"), SCM_BOOL_T);
204 get_paper (Lily_parser *parser)
206 SCM id = parser->lexer_->lookup_identifier ("$defaultpaper");
207 Output_def *layout = unsmob_output_def (id);
209 layout = layout ? dynamic_cast<Output_def *> (layout->clone ()) : new Output_def;
210 layout->set_variable (ly_symbol2scm ("is-paper"), SCM_BOOL_T);