2 lily-parser.cc -- implement Lily_parser
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
7 Jan Nieuwenhuizen <janneke@gnu.org>
12 #include "lilypond-key.hh"
13 #include "context-selector.hh"
14 #include "grob-selector.hh"
15 #include "file-name.hh"
16 #include "file-path.hh"
17 #include "lily-version.hh"
18 #include "ly-module.hh"
20 #include "lily-lexer.hh"
21 #include "lily-parser.hh"
22 #include "output-def.hh"
23 #include "paper-book.hh"
30 Lily_parser::Lily_parser (Sources *sources)
36 default_duration_ = Duration (2, 0);
38 last_beam_start_ = SCM_EOL;
43 Lily_parser::Lily_parser (Lily_parser const &src)
45 book_count_ = src.book_count_;
46 score_count_ = src.score_count_;
48 sources_ = src.sources_;
49 default_duration_ = src.default_duration_;
50 error_level_ = src.error_level_;
51 last_beam_start_ = src.last_beam_start_;
55 lexer_ = new Lily_lexer (*src.lexer_);
57 scm_gc_unprotect_object (lexer_->self_scm ());
60 Lily_parser::~Lily_parser ()
64 #include "ly-smobs.icc"
66 IMPLEMENT_SMOBS (Lily_parser);
67 IMPLEMENT_TYPE_P (Lily_parser, "ly:lily-parser?");
68 IMPLEMENT_DEFAULT_EQUAL_P (Lily_parser);
71 Lily_parser::mark_smob (SCM s)
73 Lily_parser *parser = (Lily_parser*) SCM_CELL_WORD_1 (s);
74 return (parser->lexer_) ? parser->lexer_->self_scm () : SCM_EOL;
78 Lily_parser::print_smob (SCM s, SCM port, scm_print_state*)
80 scm_puts ("#<my_lily_parser ", port);
81 Lily_parser *parser = (Lily_parser*) SCM_CELL_WORD_1 (s);
83 scm_puts (" >", port);
88 /* Process one .ly file, or book. */
90 Lily_parser::parse_file (String init, String name, String 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 progress_indication (_ ("Parsing..."));
102 progress_indication ("\n");
106 lexer_->new_input (init, sources_);
109 String s = global_path.find (f.base_ + ".twy");
111 Grob_selector::set_tweaks (SCM_EOL);
114 s = gulp_file_to_string (s, false);
115 SCM tweaks = scm_eval_string (scm_makfrom0str (s.to_str0 ()));
116 Grob_selector::set_tweaks (tweaks);
118 Context_selector::set_tweaks (SCM_EOL);
121 /* Read .ly IN_FILE, lex, parse, write \score blocks from IN_FILE to
122 OUT_FILE (unless IN_FILE redefines output file name). */
125 if (!define_spots_.is_empty ())
127 define_spots_.top ().warning (_ ("Braces don't match"));
131 error_level_ = error_level_ | lexer_->error_level_;
136 Lily_parser::parse_string (String ly_code)
138 Lily_lexer * parent = lexer_;
139 lexer_ = (parent == 0 ? new Lily_lexer (sources_)
140 : new Lily_lexer (*parent));
141 scm_gc_unprotect_object (lexer_->self_scm ());
144 SCM oldmod = scm_current_module ();
145 scm_set_current_module (scm_car (lexer_->scopes_));
148 lexer_->set_identifier (ly_symbol2scm ("parser"),
151 lexer_->main_input_name_ = "<string>";
152 lexer_->main_input_b_ = true;
155 lexer_->new_input (lexer_->main_input_name_, ly_code, sources_);
158 if (!define_spots_.is_empty ())
160 define_spots_.top ().warning (_ ("Braces don't match"));
164 error_level_ = error_level_ | lexer_->error_level_;
166 scm_set_current_module (oldmod);
171 Lily_parser::push_spot ()
173 define_spots_.push (here_input ());
177 Lily_parser::here_str0 () const
179 return lexer_->here_str0 ();
183 Lily_parser::parser_error (String s)
185 here_input ().error (s);
190 Lily_parser::pop_spot ()
192 return define_spots_.pop ();
196 Lily_parser::here_input () const
199 Parsing looks ahead , so we really want the previous location of the
200 lexer, not lexer_->here_input ().
204 Actually, that gets very icky when there are white space, because
205 the line-numbers are all wrong. Let's try the character before
206 the current token. That gets the right result for note/duration
207 stuff, but doesn't mess up for errors in the 1st token of the
210 Input hi (lexer_->here_input ());
212 char const * bla = hi.defined_str0_;
213 if (hi.line_number () > 1
214 || hi.column_number () > 1)
217 return Input (hi.source_file_, bla);
221 /****************************************************************/
227 bool store_locations_global_b;
229 /* Do not append `!' suffix, since 1st argument is not modified. */
230 LY_DEFINE (ly_set_point_and_click, "ly:set-point-and-click",
232 "Set the options for Point-and-click source specials output. The\n"
233 "argument is a symbol. Possible options are @code{none} (no source specials),\n"
234 "@code{line} and @code{line-column}")
237 SCM val = SCM_BOOL_F;
238 if (ly_symbol2scm ("line-column") == what)
239 val = ly_scheme_function ("line-column-location");
240 else if (what == ly_symbol2scm ("line"))
241 val = ly_scheme_function ("line-location");
243 scm_module_define (global_lily_module, ly_symbol2scm ("point-and-click"),
245 store_locations_global_b = ly_c_procedure_p (val);
246 return SCM_UNSPECIFIED;
249 LY_DEFINE (ly_parse_file, "ly:parse-file",
251 "Parse a single @code{.ly} file. "
252 "Upon failure, throw @code{ly-file-failed} key.")
254 SCM_ASSERT_TYPE (scm_is_string (name), name, SCM_ARG1, __FUNCTION__, "string");
255 char const *file = scm_i_string_chars (name);
256 char const *extensions[] = {"ly", "", 0};
258 String file_name = global_path.find (file, extensions);
260 /* By default, use base name of input file for output file name,
261 write output to cwd; do not use root and directory parts of input
263 File_name out_file_name (file_name);
265 global_path.append (out_file_name.dir_);
267 out_file_name.ext_ = "";
268 out_file_name.root_ = "";
269 out_file_name.dir_ = "";
271 if (!output_name_global.is_empty ())
272 out_file_name = File_name (output_name_global);
275 if (!init_name_global.is_empty ())
276 init = init_name_global;
280 String out_file = out_file_name.to_string ();
282 if (init.length () && global_path.find (init).is_empty ())
284 warning (_f ("can't find init file: `%s'", init));
285 warning (_f ("(search path: `%s')",
286 global_path.to_string ().to_str0 ()));
290 if ((file_name != "-") && global_path.find (file_name).is_empty ())
292 warning (_f ("can't find file: `%s'", file_name));
293 scm_throw (ly_symbol2scm ("ly-file-failed"),
294 scm_list_1 (scm_makfrom0str (file_name.to_str0 ())));
299 sources.set_path (&global_path);
301 progress_indication (_f ("Processing `%s'", file_name.to_str0 ()));
302 progress_indication ("\n");
304 Lily_parser *parser = new Lily_parser (&sources);
306 parser->parse_file (init, file_name, out_file);
308 bool error = parser->error_level_;
309 scm_gc_unprotect_object (parser->self_scm ());
312 /* TODO: pass renamed input file too. */
313 scm_throw (ly_symbol2scm ("ly-file-failed"),
314 scm_list_1 (scm_makfrom0str (file_name.to_str0 ())));
316 return SCM_UNSPECIFIED;
319 LY_DEFINE (ly_parse_string, "ly:parse-string",
320 1, 0, 0, (SCM ly_code),
321 "Parse the string LY_CODE. "
322 "Upon failure, throw @code{ly-file-failed} key.")
324 SCM_ASSERT_TYPE (scm_is_string (ly_code), ly_code, SCM_ARG1, __FUNCTION__, "string");
327 sources.set_path (&global_path);
328 Lily_parser *parser = new Lily_parser (&sources);
329 scm_module_define (global_lily_module, ly_symbol2scm ("parser"),
330 parser->self_scm ());
331 parser->parse_string (ly_scm2string (ly_code));
332 scm_gc_unprotect_object (parser->self_scm ());
335 return SCM_UNSPECIFIED;
338 LY_DEFINE (ly_clone_parser, "ly:clone-parser",
339 1, 0, 0, (SCM parser_smob),
340 "Return a clone of PARSER_SMOB.")
342 Lily_parser *parser = unsmob_my_lily_parser (parser_smob);
343 Lily_parser *clone = new Lily_parser (*parser);
345 /* FIXME: should copy scopes too. */
346 return scm_gc_unprotect_object (clone->self_scm ());
349 LY_DEFINE (ly_parser_define, "ly:parser-define",
350 3, 0, 0, (SCM parser_smob, SCM symbol, SCM val),
351 "Bind SYMBOL to VAL in PARSER_SMOB's module.")
353 Lily_parser *parser = unsmob_my_lily_parser (parser_smob);
354 SCM_ASSERT_TYPE (scm_is_symbol (symbol), symbol, SCM_ARG2, __FUNCTION__, "symbol");
355 SCM_ASSERT_TYPE (parser, parser_smob, SCM_ARG2, __FUNCTION__, "parser");
357 parser->lexer_->set_identifier (scm_symbol_to_string (symbol), val);
358 return SCM_UNSPECIFIED;
361 LY_DEFINE (ly_parser_lookup, "ly:parser-lookup",
362 2, 0, 0, (SCM parser_smob, SCM symbol),
363 "Lookup @var{symbol} in @var{parser_smob}'s module. "
366 Lily_parser *parser = unsmob_my_lily_parser (parser_smob);
368 SCM_ASSERT_TYPE (scm_is_symbol (symbol), symbol, SCM_ARG2, __FUNCTION__, "symbol");
369 SCM_ASSERT_TYPE (parser, parser_smob, SCM_ARG2, __FUNCTION__, "parser");
371 SCM val= parser->lexer_->lookup_identifier (ly_scm2string (scm_symbol_to_string (symbol)));
372 if (val != SCM_UNDEFINED)
378 LY_DEFINE (ly_parser_parse_string, "ly:parser-parse-string",
379 2, 0, 0, (SCM parser_smob, SCM ly_code),
380 "Parse the string LY_CODE with PARSER_SMOB."
381 "Upon failure, throw @code{ly-file-failed} key.")
383 Lily_parser *parser = unsmob_my_lily_parser (parser_smob);
385 SCM_ASSERT_TYPE (parser, parser_smob, SCM_ARG1, __FUNCTION__, "parser");
386 SCM_ASSERT_TYPE (scm_is_string (ly_code), ly_code, SCM_ARG2, __FUNCTION__, "string");
388 parser->parse_string (ly_scm2string (ly_code));
390 return SCM_UNSPECIFIED;
394 get_layout (Lily_parser *parser)
396 SCM id = parser->lexer_->lookup_identifier ("$defaultlayout");
397 Output_def *layout = unsmob_output_def (id);
398 layout = layout ? layout->clone () : new Output_def;
399 layout->set_variable (ly_symbol2scm ("is-layout"), SCM_BOOL_T);
406 get_midi (Lily_parser *parser)
408 SCM id = parser->lexer_->lookup_identifier ("$defaultmidi");
409 Output_def *layout = unsmob_output_def (id);
410 layout = layout ? layout->clone () : new Output_def;
411 layout->set_variable (ly_symbol2scm ("is-midi"), SCM_BOOL_T);
417 get_paper (Lily_parser *parser)
419 SCM id = parser->lexer_->lookup_identifier ("$defaultpaper");
420 Output_def *layout = unsmob_output_def (id);
422 layout = layout ? dynamic_cast<Output_def*> (layout->clone ()) : new Output_def;
423 layout->set_variable (ly_symbol2scm ("is-paper"), SCM_BOOL_T);
428 /* TODO: move this to Scheme? Why take the parser arg, and all the back
429 & forth between scm and c++? */
430 LY_DEFINE (ly_parser_print_score, "ly:parser-print-score",
432 (SCM parser_smob, SCM score_smob),
433 "Print score, i.e., the classic way.")
435 Lily_parser *parser = unsmob_my_lily_parser (parser_smob);
436 Score *score = unsmob_score (score_smob);
438 Object_key * key = new Lilypond_general_key (0, score->user_key_, 0);
440 if (score->error_found_)
441 return SCM_UNSPECIFIED;
443 SCM_ASSERT_TYPE (parser, parser_smob, SCM_ARG1, __FUNCTION__, "parser");
444 SCM_ASSERT_TYPE (score, score_smob, SCM_ARG2, __FUNCTION__, "score");
446 SCM header = ly_c_module_p (score->header_) ? score->header_
447 : parser->lexer_->lookup_identifier ("$globalheader");
449 File_name outname (parser->output_basename_);
450 int *c = &parser->book_count_;
452 outname.base_ += "-" + to_string (*c);
455 SCM os = scm_makfrom0str (outname.to_string ().to_str0 ());
456 SCM paper = get_paper (parser)->self_scm ();
457 for (int i = 0; i < score->defs_.size (); i++)
458 default_rendering (score->get_music (), score->defs_[i]->self_scm (),
463 if (score->defs_.is_empty ())
465 Output_def *layout = get_layout (parser);
466 default_rendering (score->get_music(), layout->self_scm (),
467 get_paper (parser)->self_scm (),
468 header, os, key->self_scm ());
469 scm_gc_unprotect_object (layout->self_scm ());
472 scm_gc_unprotect_object (key->self_scm ());
473 return SCM_UNSPECIFIED;
477 LY_DEFINE (ly_parser_set_note_names, "ly:parser-set-note-names",
478 2, 0, 0, (SCM parser, SCM names),
479 "Replace current note names in @var{parser}. "
480 "@var{names} is an alist of symbols. "
481 "This only has effect if the current mode is notes.")
483 Lily_parser *p = unsmob_my_lily_parser (parser);
484 SCM_ASSERT_TYPE(p, parser, SCM_ARG1, __FUNCTION__, "Lilypond parser");
486 if (p->lexer_->is_note_state ())
488 p->lexer_->pop_state ();
489 p->lexer_->push_note_state (alist_to_hashq (names));
492 return SCM_UNSPECIFIED;
495 LY_DEFINE (ly_parser_print_book, "ly:parser-print-book",
496 2, 0, 0, (SCM parser_smob, SCM book_smob),
499 Lily_parser *parser = unsmob_my_lily_parser (parser_smob);
500 Book *book = unsmob_book (book_smob);
501 Output_def *bp = unsmob_output_def (parser->lexer_->lookup_identifier ("$defaultpaper"));
503 SCM_ASSERT_TYPE (parser, parser_smob, SCM_ARG1, __FUNCTION__, "Lilypond parser");
504 SCM_ASSERT_TYPE (book, book_smob, SCM_ARG2, __FUNCTION__, "Book");
506 /* ugh. changing argument.*/
509 File_name outname (parser->output_basename_);
510 int *c = &parser->book_count_;
512 outname.base_ += "-" + to_string (*c);
515 Output_def *layout = get_layout (parser);
516 Paper_book* pb = book->process (outname.to_string (), layout);
520 pb->output (outname.to_string ());
521 scm_gc_unprotect_object (pb->self_scm ());
524 scm_gc_unprotect_object (layout->self_scm ());
525 return SCM_UNSPECIFIED;