2 my-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>
11 #include "file-name.hh"
12 #include "file-path.hh"
13 #include "lily-version.hh"
14 #include "ly-module.hh"
16 #include "my-lily-lexer.hh"
17 #include "my-lily-parser.hh"
18 #include "output-def.hh"
19 #include "paper-book.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:my-lily-parser?");
64 IMPLEMENT_DEFAULT_EQUAL_P (Lily_parser);
67 Lily_parser::mark_smob (SCM s)
69 Lily_parser *parser = (Lily_parser*) ly_cdr (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*) ly_cdr (s);
79 scm_puts (" >", port);
84 /* Process one .ly file, or book. */
86 Lily_parser::parse_file (String init, String name, String out_name)
88 lexer_ = new Lily_lexer (sources_);
90 lexer_->set_identifier (ly_symbol2scm ("parser"),
92 output_basename_ = out_name;
94 lexer_->main_input_name_ = name;
96 progress_indication (_ ("Parsing..."));
97 progress_indication ("\n");
101 lexer_->new_input (init, sources_);
103 /* Read .ly IN_FILE, lex, parse, write \score blocks from IN_FILE to
104 OUT_FILE (unless IN_FILE redefines output file name). */
107 if (!define_spots_.is_empty ())
109 define_spots_.top ().warning (_ ("Braces don't match"));
113 error_level_ = error_level_ | lexer_->error_level_;
115 scm_gc_unprotect_object (lexer_->self_scm ());
120 Lily_parser::parse_string (String ly_code)
122 Lily_lexer *parent = lexer_;
123 lexer_ = (parent == 0 ? new Lily_lexer (sources_)
124 : new Lily_lexer (*parent));
127 SCM oldmod = scm_current_module ();
128 scm_set_current_module (ly_car (lexer_->scopes_));
131 lexer_->set_identifier (ly_symbol2scm ("parser"),
134 lexer_->main_input_name_ = "<string>";
135 lexer_->main_input_b_ = true;
138 lexer_->new_input (lexer_->main_input_name_, ly_code, sources_);
141 if (!define_spots_.is_empty ())
143 define_spots_.top ().warning (_ ("Braces don't match"));
147 error_level_ = error_level_ | lexer_->error_level_;
151 parent->keytable_ = lexer_->keytable_;
152 parent->encoding_ = lexer_->encoding_;
153 parent->chordmodifier_tab_ = lexer_->chordmodifier_tab_;
154 parent->pitchname_tab_stack_ = lexer_->pitchname_tab_stack_;
155 parent->sources_ = lexer_->sources_;
156 parent->scopes_ = lexer_->scopes_;
157 parent->error_level_ = lexer_->error_level_;
158 parent->main_input_b_ = lexer_->main_input_b_;
161 scm_set_current_module (oldmod);
162 scm_gc_unprotect_object (lexer_->self_scm ());
167 Lily_parser::push_spot ()
169 define_spots_.push (here_input ());
173 Lily_parser::here_str0 () const
175 return lexer_->here_str0 ();
179 Lily_parser::parser_error (String s)
181 here_input ().error (s);
186 Lily_parser::pop_spot ()
188 return define_spots_.pop ();
192 Lily_parser::here_input () const
195 Parsing looks ahead , so we really want the previous location of the
196 lexer, not lexer_->here_input ().
200 Actually, that gets very icky when there are white space, because
201 the line-numbers are all wrong. Let's try the character before
202 the current token. That gets the right result for note/duration
203 stuff, but doesn't mess up for errors in the 1st token of the
206 Input hi (lexer_->here_input ());
208 char const * bla = hi.defined_str0_;
209 if (hi.line_number () > 1
210 || hi.column_number () > 1)
213 return Input (hi.source_file_, bla);
217 /****************************************************************/
223 bool store_locations_global_b;
225 /* Do not append `!' suffix, since 1st argument is not modified. */
226 LY_DEFINE (ly_set_point_and_click, "ly:set-point-and-click",
228 "Set the options for Point-and-click source specials output. The\n"
229 "argument is a symbol. Possible options are @code{none} (no source specials),\n"
230 "@code{line} and @code{line-column}")
233 SCM val = SCM_BOOL_F;
234 if (ly_symbol2scm ("line-column") == what)
235 val = ly_scheme_function ("line-column-location");
236 else if (what == ly_symbol2scm ("line"))
237 val = ly_scheme_function ("line-location");
239 scm_module_define (global_lily_module, ly_symbol2scm ("point-and-click"),
241 store_locations_global_b = ly_c_procedure_p (val);
242 return SCM_UNSPECIFIED;
245 LY_DEFINE (ly_parse_file, "ly:parse-file",
247 "Parse a single @code{.ly} file. "
248 "Upon failure, throw @code{ly-file-failed} key.")
250 SCM_ASSERT_TYPE (ly_c_string_p (name), name, SCM_ARG1, __FUNCTION__, "string");
251 char const *file = SCM_STRING_CHARS (name);
252 char const *extensions[] = {"ly", "", 0};
254 String file_name = global_path.find (file, extensions);
256 /* By default, use base name of input file for output file name,
257 write output to cwd; do not use root and directory parts of input
259 File_name out_file_name (file_name);
261 global_path.append (out_file_name.dir_);
263 out_file_name.ext_ = "";
264 out_file_name.root_ = "";
265 out_file_name.dir_ = "";
267 if (!output_name_global.is_empty ())
268 out_file_name = File_name (output_name_global);
271 if (!init_name_global.is_empty ())
272 init = init_name_global;
276 String out_file = out_file_name.to_string ();
278 if (init.length () && global_path.find (init).is_empty ())
280 warning (_f ("can't find init file: `%s'", init));
281 warning (_f ("(search path: `%s')",
282 global_path.to_string ().to_str0 ()));
286 if ((file_name != "-") && global_path.find (file_name).is_empty ())
288 warning (_f ("can't find file: `%s'", file_name));
289 scm_throw (ly_symbol2scm ("ly-file-failed"),
290 scm_list_1 (scm_makfrom0str (file_name.to_str0 ())));
295 sources.set_path (&global_path);
297 progress_indication (_f ("Now processing `%s'", file_name.to_str0 ()));
298 progress_indication ("\n");
300 Lily_parser *parser = new Lily_parser (&sources);
302 parser->parse_file (init, file_name, out_file);
304 bool error = parser->error_level_;
307 /* TODO: pass renamed input file too. */
308 scm_throw (ly_symbol2scm ("ly-file-failed"),
309 scm_list_1 (scm_makfrom0str (file_name.to_str0 ())));
311 return SCM_UNSPECIFIED;
314 LY_DEFINE (ly_parse_string, "ly:parse-string",
315 1, 0, 0, (SCM ly_code),
316 "Parse the string LY_CODE. "
317 "Upon failure, throw @code{ly-file-failed} key.")
319 SCM_ASSERT_TYPE (ly_c_string_p (ly_code), ly_code, SCM_ARG1, __FUNCTION__, "string");
322 sources.set_path (&global_path);
323 Lily_parser *parser = new Lily_parser (&sources);
324 scm_module_define (global_lily_module, ly_symbol2scm ("parser"),
325 parser->self_scm ());
326 parser->parse_string (ly_scm2string (ly_code));
329 return SCM_UNSPECIFIED;
332 LY_DEFINE (ly_clone_parser, "ly:clone-parser",
333 1, 0, 0, (SCM parser_smob),
334 "Return a clone of PARSER_SMOB.")
336 Lily_parser *parser = unsmob_my_lily_parser (parser_smob);
337 Lily_parser *clone = new Lily_parser (*parser);
339 /* FIXME: should copy scopes too. */
340 return scm_gc_unprotect_object (clone->self_scm ());
343 LY_DEFINE (ly_parser_define, "ly:parser-define",
344 3, 0, 0, (SCM parser_smob, SCM symbol, SCM val),
345 "Bind SYMBOL to VAL in PARSER_SMOB's module.")
347 Lily_parser *parser = unsmob_my_lily_parser (parser_smob);
348 SCM_ASSERT_TYPE (ly_c_symbol_p (symbol), symbol, SCM_ARG2, __FUNCTION__, "symbol");
349 SCM_ASSERT_TYPE (parser, parser_smob, SCM_ARG2, __FUNCTION__, "parser");
351 parser->lexer_->set_identifier (scm_symbol_to_string (symbol), val);
352 return SCM_UNSPECIFIED;
355 LY_DEFINE (ly_parser_lookup, "ly:parser-lookup",
356 2, 0, 0, (SCM parser_smob, SCM symbol),
357 "Lookup @var{symbol} in @var{parser_smob}'s module. "
360 Lily_parser *parser = unsmob_my_lily_parser (parser_smob);
362 SCM_ASSERT_TYPE (ly_c_symbol_p (symbol), symbol, SCM_ARG2, __FUNCTION__, "symbol");
363 SCM_ASSERT_TYPE (parser, parser_smob, SCM_ARG2, __FUNCTION__, "parser");
365 SCM val= parser->lexer_->lookup_identifier (ly_scm2string (scm_symbol_to_string (symbol)));
366 if (val != SCM_UNDEFINED)
372 LY_DEFINE (ly_parser_parse_string, "ly:parser-parse-string",
373 2, 0, 0, (SCM parser_smob, SCM ly_code),
374 "Parse the string LY_CODE with PARSER_SMOB."
375 "Upon failure, throw @code{ly-file-failed} key.")
377 Lily_parser *parser = unsmob_my_lily_parser (parser_smob);
379 SCM_ASSERT_TYPE (parser, parser_smob, SCM_ARG1, __FUNCTION__, "parser");
380 SCM_ASSERT_TYPE (ly_c_string_p (ly_code), ly_code, SCM_ARG2, __FUNCTION__, "string");
382 parser->parse_string (ly_scm2string (ly_code));
384 return SCM_UNSPECIFIED;
388 get_paper (Lily_parser *parser)
390 SCM id = parser->lexer_->lookup_identifier ("$defaultpaper");
391 Output_def *paper = unsmob_output_def (id);
392 paper = paper ? paper->clone () : new Output_def;
393 paper->set_variable (ly_symbol2scm ("is-paper"), SCM_BOOL_T);
395 paper->parent_ = unsmob_output_def (parser->lexer_->lookup_identifier ("$defaultbookpaper"));
401 get_midi (Lily_parser *parser)
403 SCM id = parser->lexer_->lookup_identifier ("$defaultmidi");
404 Output_def *paper = unsmob_output_def (id);
405 paper = paper ? paper->clone () : new Output_def;
406 paper->set_variable (ly_symbol2scm ("is-midi"), SCM_BOOL_T);
412 get_bookpaper (Lily_parser *parser)
414 SCM id = parser->lexer_->lookup_identifier ("$defaultbookpaper");
415 Output_def *paper = unsmob_output_def (id);
417 paper = paper ? dynamic_cast<Output_def*> (paper->clone ()) : new Output_def;
418 paper->set_variable (ly_symbol2scm ("is-bookpaper"), SCM_BOOL_T);
423 /* TODO: move this to Scheme? Why take the parser arg, and all the back
424 & forth between scm and c++? */
425 LY_DEFINE (ly_parser_print_score, "ly:parser-print-score",
427 (SCM parser_smob, SCM score_smob),
428 "Print score, i.e., the classic way.")
430 Lily_parser *parser = unsmob_my_lily_parser (parser_smob);
431 Score *score = unsmob_score (score_smob);
433 SCM_ASSERT_TYPE (parser, parser_smob, SCM_ARG1, __FUNCTION__, "parser");
434 SCM_ASSERT_TYPE (score, score_smob, SCM_ARG2, __FUNCTION__, "score");
436 SCM header = ly_c_module_p (score->header_) ? score->header_
437 : parser->lexer_->lookup_identifier ("$globalheader");
439 File_name outname (parser->output_basename_);
440 int *c = &parser->book_count_;
442 outname.base_ += "-" + to_string (*c);
445 SCM os = scm_makfrom0str (outname.to_string ().to_str0 ());
446 SCM bookpaper = get_bookpaper (parser)->self_scm ();
447 for (int i = 0; i < score->defs_.size (); i++)
448 default_rendering (score->music_, score->defs_[i]->self_scm (),
452 if (score->defs_.is_empty ())
454 Output_def *paper = get_paper (parser);
455 default_rendering (score->music_, paper->self_scm (),
456 get_bookpaper (parser)->self_scm (),
458 scm_gc_unprotect_object (paper->self_scm ());
460 return SCM_UNSPECIFIED;
464 LY_DEFINE (ly_parser_set_note_names, "ly:parser-set-note-names",
465 2, 0, 0, (SCM parser, SCM names),
466 "Replace current note names in @var{parser}. "
467 "@var{names} is an alist of symbols. "
468 "This only has effect if the current mode is notes.")
470 Lily_parser *p = unsmob_my_lily_parser (parser);
471 SCM_ASSERT_TYPE(p, parser, SCM_ARG1, __FUNCTION__, "Lilypond parser");
473 if (p->lexer_->is_note_state ())
475 p->lexer_->pop_state ();
476 p->lexer_->push_note_state (alist_to_hashq (names));
479 return SCM_UNSPECIFIED;
482 LY_DEFINE (ly_parser_print_book, "ly:parser-print-book",
483 2, 0, 0, (SCM parser_smob, SCM book_smob),
486 Lily_parser *parser = unsmob_my_lily_parser (parser_smob);
487 Book *book = unsmob_book (book_smob);
488 Output_def *bp = unsmob_output_def (parser->lexer_->lookup_identifier ("$defaultbookpaper"));
490 SCM_ASSERT_TYPE (parser, parser_smob, SCM_ARG1, __FUNCTION__, "Lilypond parser");
491 SCM_ASSERT_TYPE (book, book_smob, SCM_ARG2, __FUNCTION__, "Book");
493 /* ugh. changing argument.*/
494 book->bookpaper_ = bp;
496 File_name outname (parser->output_basename_);
497 int *c = &parser->book_count_;
499 outname.base_ += "-" + to_string (*c);
502 Output_def *paper = get_paper (parser);
504 Paper_book* pb = book->process (outname.to_string (), paper);
506 pb->output (outname.to_string ());
508 scm_gc_unprotect_object (paper->self_scm ());
509 scm_gc_unprotect_object (pb->self_scm ());
511 return SCM_UNSPECIFIED;