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_);
110 String s = global_path.find (f.base_ + ".twy");
112 Grob_selector::set_tweaks (SCM_EOL);
115 s = gulp_file_to_string (s, false);
116 SCM tweaks = scm_eval_string (scm_makfrom0str (s.to_str0 ()));
117 Grob_selector::set_tweaks (tweaks);
119 Context_selector::set_tweaks (SCM_EOL);
122 /* Read .ly IN_FILE, lex, parse, write \score blocks from IN_FILE to
123 OUT_FILE (unless IN_FILE redefines output file name). */
126 if (!define_spots_.is_empty ())
128 define_spots_.top ().warning (_ ("Braces don't match"));
132 error_level_ = error_level_ | lexer_->error_level_;
137 Lily_parser::parse_string (String ly_code)
139 Lily_lexer * parent = lexer_;
140 lexer_ = (parent == 0 ? new Lily_lexer (sources_)
141 : new Lily_lexer (*parent));
142 scm_gc_unprotect_object (lexer_->self_scm ());
145 SCM oldmod = scm_current_module ();
146 scm_set_current_module (scm_car (lexer_->scopes_));
149 lexer_->set_identifier (ly_symbol2scm ("parser"),
152 lexer_->main_input_name_ = "<string>";
153 lexer_->main_input_b_ = true;
156 lexer_->new_input (lexer_->main_input_name_, ly_code, sources_);
159 if (!define_spots_.is_empty ())
161 define_spots_.top ().warning (_ ("Braces don't match"));
165 error_level_ = error_level_ | lexer_->error_level_;
167 scm_set_current_module (oldmod);
172 Lily_parser::push_spot ()
174 define_spots_.push (here_input ());
178 Lily_parser::here_str0 () const
180 return lexer_->here_str0 ();
184 Lily_parser::parser_error (String s)
186 here_input ().error (s);
191 Lily_parser::pop_spot ()
193 return define_spots_.pop ();
197 Lily_parser::here_input () const
200 Parsing looks ahead , so we really want the previous location of the
201 lexer, not lexer_->here_input ().
205 Actually, that gets very icky when there are white space, because
206 the line-numbers are all wrong. Let's try the character before
207 the current token. That gets the right result for note/duration
208 stuff, but doesn't mess up for errors in the 1st token of the
211 Input hi (lexer_->here_input ());
213 char const * bla = hi.defined_str0_;
214 if (hi.line_number () > 1
215 || hi.column_number () > 1)
218 return Input (hi.source_file_, bla);
222 /****************************************************************/
228 bool store_locations_global_b;
230 /* Do not append `!' suffix, since 1st argument is not modified. */
231 LY_DEFINE (ly_set_point_and_click, "ly:set-point-and-click",
233 "Set the options for Point-and-click source specials output. The\n"
234 "argument is a symbol. Possible options are @code{none} (no source specials),\n"
235 "@code{line} and @code{line-column}")
238 SCM val = SCM_BOOL_F;
239 if (ly_symbol2scm ("line-column") == what)
240 val = ly_scheme_function ("line-column-location");
241 else if (what == ly_symbol2scm ("line"))
242 val = ly_scheme_function ("line-location");
244 scm_module_define (global_lily_module, ly_symbol2scm ("point-and-click"),
246 store_locations_global_b = ly_c_procedure_p (val);
247 return SCM_UNSPECIFIED;
250 LY_DEFINE (ly_parse_file, "ly:parse-file",
252 "Parse a single @code{.ly} file. "
253 "Upon failure, throw @code{ly-file-failed} key.")
255 SCM_ASSERT_TYPE (scm_is_string (name), name, SCM_ARG1, __FUNCTION__, "string");
256 char const *file = scm_i_string_chars (name);
257 char const *extensions[] = {"ly", "", 0};
259 String file_name = global_path.find (file, extensions);
261 /* By default, use base name of input file for output file name,
262 write output to cwd; do not use root and directory parts of input
264 File_name out_file_name (file_name);
266 global_path.append (out_file_name.dir_);
268 out_file_name.ext_ = "";
269 out_file_name.root_ = "";
270 out_file_name.dir_ = "";
272 if (!output_name_global.is_empty ())
273 out_file_name = File_name (output_name_global);
276 if (!init_name_global.is_empty ())
277 init = init_name_global;
281 String out_file = out_file_name.to_string ();
283 if (init.length () && global_path.find (init).is_empty ())
285 warning (_f ("can't find init file: `%s'", init));
286 warning (_f ("(search path: `%s')",
287 global_path.to_string ().to_str0 ()));
291 if ((file_name != "-") && global_path.find (file_name).is_empty ())
293 warning (_f ("can't find file: `%s'", file_name));
294 scm_throw (ly_symbol2scm ("ly-file-failed"),
295 scm_list_1 (scm_makfrom0str (file_name.to_str0 ())));
300 sources.set_path (&global_path);
302 progress_indication (_f ("Processing `%s'", file_name.to_str0 ()));
303 progress_indication ("\n");
305 Lily_parser *parser = new Lily_parser (&sources);
307 parser->parse_file (init, file_name, out_file);
309 bool error = parser->error_level_;
310 scm_gc_unprotect_object (parser->self_scm ());
313 /* TODO: pass renamed input file too. */
314 scm_throw (ly_symbol2scm ("ly-file-failed"),
315 scm_list_1 (scm_makfrom0str (file_name.to_str0 ())));
317 return SCM_UNSPECIFIED;
320 LY_DEFINE (ly_parse_string, "ly:parse-string",
321 1, 0, 0, (SCM ly_code),
322 "Parse the string LY_CODE. "
323 "Upon failure, throw @code{ly-file-failed} key.")
325 SCM_ASSERT_TYPE (scm_is_string (ly_code), ly_code, SCM_ARG1, __FUNCTION__, "string");
328 sources.set_path (&global_path);
329 Lily_parser *parser = new Lily_parser (&sources);
330 scm_module_define (global_lily_module, ly_symbol2scm ("parser"),
331 parser->self_scm ());
332 parser->parse_string (ly_scm2string (ly_code));
333 scm_gc_unprotect_object (parser->self_scm ());
336 return SCM_UNSPECIFIED;
339 LY_DEFINE (ly_clone_parser, "ly:clone-parser",
340 1, 0, 0, (SCM parser_smob),
341 "Return a clone of PARSER_SMOB.")
343 Lily_parser *parser = unsmob_my_lily_parser (parser_smob);
344 Lily_parser *clone = new Lily_parser (*parser);
346 /* FIXME: should copy scopes too. */
347 return scm_gc_unprotect_object (clone->self_scm ());
350 LY_DEFINE (ly_parser_define, "ly:parser-define",
351 3, 0, 0, (SCM parser_smob, SCM symbol, SCM val),
352 "Bind SYMBOL to VAL in PARSER_SMOB's module.")
354 Lily_parser *parser = unsmob_my_lily_parser (parser_smob);
355 SCM_ASSERT_TYPE (scm_is_symbol (symbol), symbol, SCM_ARG2, __FUNCTION__, "symbol");
356 SCM_ASSERT_TYPE (parser, parser_smob, SCM_ARG2, __FUNCTION__, "parser");
358 parser->lexer_->set_identifier (scm_symbol_to_string (symbol), val);
359 return SCM_UNSPECIFIED;
362 LY_DEFINE (ly_parser_lookup, "ly:parser-lookup",
363 2, 0, 0, (SCM parser_smob, SCM symbol),
364 "Lookup @var{symbol} in @var{parser_smob}'s module. "
367 Lily_parser *parser = unsmob_my_lily_parser (parser_smob);
369 SCM_ASSERT_TYPE (scm_is_symbol (symbol), symbol, SCM_ARG2, __FUNCTION__, "symbol");
370 SCM_ASSERT_TYPE (parser, parser_smob, SCM_ARG2, __FUNCTION__, "parser");
372 SCM val= parser->lexer_->lookup_identifier (ly_scm2string (scm_symbol_to_string (symbol)));
373 if (val != SCM_UNDEFINED)
379 LY_DEFINE (ly_parser_parse_string, "ly:parser-parse-string",
380 2, 0, 0, (SCM parser_smob, SCM ly_code),
381 "Parse the string LY_CODE with PARSER_SMOB."
382 "Upon failure, throw @code{ly-file-failed} key.")
384 Lily_parser *parser = unsmob_my_lily_parser (parser_smob);
386 SCM_ASSERT_TYPE (parser, parser_smob, SCM_ARG1, __FUNCTION__, "parser");
387 SCM_ASSERT_TYPE (scm_is_string (ly_code), ly_code, SCM_ARG2, __FUNCTION__, "string");
389 parser->parse_string (ly_scm2string (ly_code));
391 return SCM_UNSPECIFIED;
395 get_layout (Lily_parser *parser)
397 SCM id = parser->lexer_->lookup_identifier ("$defaultlayout");
398 Output_def *layout = unsmob_output_def (id);
399 layout = layout ? layout->clone () : new Output_def;
400 layout->set_variable (ly_symbol2scm ("is-layout"), SCM_BOOL_T);
407 get_midi (Lily_parser *parser)
409 SCM id = parser->lexer_->lookup_identifier ("$defaultmidi");
410 Output_def *layout = unsmob_output_def (id);
411 layout = layout ? layout->clone () : new Output_def;
412 layout->set_variable (ly_symbol2scm ("is-midi"), SCM_BOOL_T);
418 get_paper (Lily_parser *parser)
420 SCM id = parser->lexer_->lookup_identifier ("$defaultpaper");
421 Output_def *layout = unsmob_output_def (id);
423 layout = layout ? dynamic_cast<Output_def*> (layout->clone ()) : new Output_def;
424 layout->set_variable (ly_symbol2scm ("is-paper"), SCM_BOOL_T);
429 /* TODO: move this to Scheme? Why take the parser arg, and all the back
430 & forth between scm and c++? */
431 LY_DEFINE (ly_parser_print_score, "ly:parser-print-score",
433 (SCM parser_smob, SCM score_smob),
434 "Print score, i.e., the classic way.")
436 Lily_parser *parser = unsmob_my_lily_parser (parser_smob);
437 Score *score = unsmob_score (score_smob);
439 Object_key * key = new Lilypond_general_key (0, score->user_key_, 0);
441 if (score->error_found_)
442 return SCM_UNSPECIFIED;
444 SCM_ASSERT_TYPE (parser, parser_smob, SCM_ARG1, __FUNCTION__, "parser");
445 SCM_ASSERT_TYPE (score, score_smob, SCM_ARG2, __FUNCTION__, "score");
447 SCM header = ly_c_module_p (score->header_) ? score->header_
448 : parser->lexer_->lookup_identifier ("$globalheader");
450 File_name outname (parser->output_basename_);
451 int *c = &parser->book_count_;
453 outname.base_ += "-" + to_string (*c);
456 SCM os = scm_makfrom0str (outname.to_string ().to_str0 ());
457 SCM paper = get_paper (parser)->self_scm ();
458 for (int i = 0; i < score->defs_.size (); i++)
459 default_rendering (score->get_music (), score->defs_[i]->self_scm (),
464 if (score->defs_.is_empty ())
466 Output_def *layout = get_layout (parser);
467 default_rendering (score->get_music(), layout->self_scm (),
468 get_paper (parser)->self_scm (),
469 header, os, key->self_scm ());
470 scm_gc_unprotect_object (layout->self_scm ());
473 scm_gc_unprotect_object (key->self_scm ());
474 return SCM_UNSPECIFIED;
478 LY_DEFINE (ly_parser_set_note_names, "ly:parser-set-note-names",
479 2, 0, 0, (SCM parser, SCM names),
480 "Replace current note names in @var{parser}. "
481 "@var{names} is an alist of symbols. "
482 "This only has effect if the current mode is notes.")
484 Lily_parser *p = unsmob_my_lily_parser (parser);
485 SCM_ASSERT_TYPE(p, parser, SCM_ARG1, __FUNCTION__, "Lilypond parser");
487 if (p->lexer_->is_note_state ())
489 p->lexer_->pop_state ();
490 p->lexer_->push_note_state (alist_to_hashq (names));
493 return SCM_UNSPECIFIED;
496 LY_DEFINE (ly_parser_print_book, "ly:parser-print-book",
497 2, 0, 0, (SCM parser_smob, SCM book_smob),
500 Lily_parser *parser = unsmob_my_lily_parser (parser_smob);
501 Book *book = unsmob_book (book_smob);
502 Output_def *bp = unsmob_output_def (parser->lexer_->lookup_identifier ("$defaultpaper"));
504 SCM_ASSERT_TYPE (parser, parser_smob, SCM_ARG1, __FUNCTION__, "Lilypond parser");
505 SCM_ASSERT_TYPE (book, book_smob, SCM_ARG2, __FUNCTION__, "Book");
507 /* ugh. changing argument.*/
510 File_name outname (parser->output_basename_);
511 int *c = &parser->book_count_;
513 outname.base_ += "-" + to_string (*c);
516 Output_def *layout = get_layout (parser);
517 Paper_book* pb = book->process (outname.to_string (), layout);
521 pb->output (outname.to_string ());
522 scm_gc_unprotect_object (pb->self_scm ());
525 scm_gc_unprotect_object (layout->self_scm ());
526 return SCM_UNSPECIFIED;