2 my-lily-parser.cc -- implement My_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 "file-name.hh"
13 #include "file-path.hh"
14 #include "lily-version.hh"
15 #include "ly-module.hh"
17 #include "my-lily-lexer.hh"
18 #include "my-lily-parser.hh"
19 #include "output-def.hh"
20 #include "paper-book.hh"
26 #include "ly-smobs.icc"
29 My_lily_parser::My_lily_parser (Sources *sources)
35 default_duration_ = Duration (2,0);
37 last_beam_start_ = SCM_EOL;
42 My_lily_parser::My_lily_parser (My_lily_parser const &src)
44 book_count_ = src.book_count_;
45 score_count_ = src.score_count_;
47 sources_ = src.sources_;
48 default_duration_ = src.default_duration_;
49 error_level_ = src.error_level_;
50 last_beam_start_ = src.last_beam_start_;
53 lexer_ = new My_lily_lexer (*src.lexer_);
56 My_lily_parser::~My_lily_parser ()
58 // FIXME: Memleak: del lexer
61 IMPLEMENT_SMOBS (My_lily_parser);
62 IMPLEMENT_TYPE_P (My_lily_parser, "ly:my-lily-parser?");
63 IMPLEMENT_DEFAULT_EQUAL_P (My_lily_parser);
66 My_lily_parser::mark_smob (SCM s)
68 My_lily_parser *parser = (My_lily_parser*) ly_cdr (s);
73 My_lily_parser::print_smob (SCM s, SCM port, scm_print_state*)
75 scm_puts ("#<my_lily_parser ", port);
76 My_lily_parser *parser = (My_lily_parser*) ly_cdr (s);
78 scm_puts (" >", port);
83 /* Process one .ly file, or book. */
85 My_lily_parser::parse_file (String init, String name, String out_name)
87 lexer_ = new My_lily_lexer (sources_);
88 output_basename_ = out_name;
90 lexer_->main_input_name_ = name;
92 progress_indication (_ ("Parsing..."));
93 progress_indication ("\n");
96 lexer_->new_input (init, sources_);
98 /* Read .ly IN_FILE, lex, parse, write \score blocks from IN_FILE to
99 OUT_FILE (unless IN_FILE redefines output file name). */
102 if (!define_spots_.is_empty ())
104 define_spots_.top ().warning (_ ("Braces don't match"));
108 error_level_ = error_level_ | lexer_->error_level_;
114 My_lily_parser::parse_string (String ly_code)
116 My_lily_lexer *parent = lexer_;
117 lexer_ = (parent == 0 ? new My_lily_lexer (sources_)
118 : new My_lily_lexer (*parent));
120 lexer_->main_input_name_ = "<string>";
121 lexer_->main_input_b_ = true;
124 lexer_->new_input (lexer_->main_input_name_, ly_code, sources_);
127 if (!define_spots_.is_empty ())
129 define_spots_.top ().warning (_ ("Braces don't match"));
133 error_level_ = error_level_ | lexer_->error_level_;
137 parent->keytable_ = lexer_->keytable_;
138 parent->encoding_ = lexer_->encoding_;
139 parent->chordmodifier_tab_ = lexer_->chordmodifier_tab_;
140 parent->pitchname_tab_stack_ = lexer_->pitchname_tab_stack_;
141 parent->sources_ = lexer_->sources_;
142 parent->scopes_ = lexer_->scopes_;
143 parent->error_level_ = lexer_->error_level_;
144 parent->main_input_b_ = lexer_->main_input_b_;
152 My_lily_parser::push_spot ()
154 define_spots_.push (here_input ());
158 My_lily_parser::here_str0 () const
160 return lexer_->here_str0 ();
164 My_lily_parser::parser_error (String s)
166 here_input ().error (s);
171 My_lily_parser::pop_spot ()
173 return define_spots_.pop ();
177 My_lily_parser::here_input () const
180 Parsing looks ahead , so we really want the previous location of the
181 lexer, not lexer_->here_input ().
185 Actually, that gets very icky when there are white space, because
186 the line-numbers are all wrong. Let's try the character before
187 the current token. That gets the right result for note/duration
188 stuff, but doesn't mess up for errors in the 1st token of the
191 Input hi (lexer_->here_input ());
193 char const * bla = hi.defined_str0_;
194 if (hi.line_number () > 1
195 || hi.column_number () > 1)
198 return Input (hi.source_file_, bla);
202 /****************************************************************/
208 bool store_locations_global_b;
210 /* Do not append `!' suffix, since 1st argument is not modified. */
211 LY_DEFINE (ly_set_point_and_click, "ly:set-point-and-click", 1, 0, 0,
213 "Set the options for Point-and-click source specials output. The\n"
214 "argument is a symbol. Possible options are @code{none} (no source specials),\n"
215 "@code{line} and @code{line-column}")
218 SCM val = SCM_BOOL_F;
219 if (ly_symbol2scm ("line-column") == what)
220 val = ly_scheme_function ("line-column-location");
221 else if (what == ly_symbol2scm ("line"))
222 val = ly_scheme_function ("line-location");
224 scm_module_define (global_lily_module, ly_symbol2scm ("point-and-click"),
226 store_locations_global_b = ly_c_procedure_p (val);
227 return SCM_UNSPECIFIED;
230 LY_DEFINE (ly_parse_file, "ly:parse-file",
233 "Parse a single @code{.ly} file. "
234 "Upon failure, throw @code{ly-file-failed} key.")
236 SCM_ASSERT_TYPE (ly_c_string_p (name), name, SCM_ARG1, __FUNCTION__, "string");
237 char const *file = SCM_STRING_CHARS (name);
238 char const *extensions[] = {"ly", "", 0};
239 String file_name = global_path.find (file, extensions);
241 /* By default, use base name of input file for output file name,
242 write output to cwd; do not use root and directory parts of input
244 File_name out_file_name (file_name);
245 out_file_name.ext_ = "";
246 out_file_name.root_ = "";
247 out_file_name.dir_ = "";
249 if (!output_name_global.is_empty ())
250 out_file_name = File_name (output_name_global);
253 if (!init_name_global.is_empty ())
254 init = init_name_global;
258 String out_file = out_file_name.to_string ();
260 if (init.length () && global_path.find (init).is_empty ())
262 warning (_f ("can't find init file: `%s'", init));
263 warning (_f ("(search path: `%s')",
264 global_path.to_string ().to_str0 ()));
268 if ((file_name != "-") && global_path.find (file_name).is_empty ())
270 warning (_f ("can't find file: `%s'", file_name));
271 scm_throw (ly_symbol2scm ("ly-file-failed"),
272 scm_list_1 (scm_makfrom0str (file_name.to_str0 ())));
277 sources.set_path (&global_path);
279 progress_indication (_f ("Now processing `%s'", file_name.to_str0 ()));
280 progress_indication ("\n");
282 My_lily_parser *parser = new My_lily_parser (&sources);
283 scm_module_define (global_lily_module, ly_symbol2scm ("parser"),
284 parser->self_scm ());
285 parser->parse_file (init, file_name, out_file);
287 bool error = parser->error_level_;
290 /* TODO: pass renamed input file too. */
291 scm_throw (ly_symbol2scm ("ly-file-failed"),
292 scm_list_1 (scm_makfrom0str (file_name.to_str0 ())));
294 return SCM_UNSPECIFIED;
297 LY_DEFINE (ly_parse_string, "ly:parse-string",
300 "Parse the string LY_CODE. "
301 "Upon failure, throw @code{ly-file-failed} key.")
303 SCM_ASSERT_TYPE (ly_c_string_p (ly_code), ly_code, SCM_ARG1, __FUNCTION__, "string");
306 sources.set_path (&global_path);
307 My_lily_parser *parser = new My_lily_parser (&sources);
308 scm_module_define (global_lily_module, ly_symbol2scm ("parser"),
309 parser->self_scm ());
310 parser->parse_string (ly_scm2string (ly_code));
313 return SCM_UNSPECIFIED;
316 LY_DEFINE (ly_clone_parser, "ly:clone-parser",
319 "Return a clone of PARSER_SMOB.")
321 My_lily_parser *parser = unsmob_my_lily_parser (parser_smob);
322 My_lily_parser *clone = new My_lily_parser (*parser);
325 FIXME: should copy scopes too.
327 return scm_gc_unprotect_object (clone->self_scm ());
330 LY_DEFINE(ly_parser_define, "ly:parser-define",
332 (SCM parser_smob, SCM symbol, SCM val),
333 "Bind SYMBOL to VAL in PARSER_SMOB's module.")
335 My_lily_parser *parser = unsmob_my_lily_parser (parser_smob);
336 SCM_ASSERT_TYPE (ly_c_symbol_p (symbol), symbol, SCM_ARG2, __FUNCTION__, "symbol");
337 SCM_ASSERT_TYPE (parser, parser_smob, SCM_ARG2, __FUNCTION__, "parser");
340 parser->lexer_->set_identifier (scm_symbol_to_string (symbol), val);
341 return SCM_UNSPECIFIED;
343 LY_DEFINE(ly_parser_lookup, "ly:parser-lookup",
345 (SCM parser_smob, SCM symbol),
346 "Lookup @var{symbol} in @var{parser_smob}'s module. Undefined is '().")
348 My_lily_parser *parser = unsmob_my_lily_parser (parser_smob);
350 SCM_ASSERT_TYPE (ly_c_symbol_p (symbol), symbol, SCM_ARG2, __FUNCTION__, "symbol");
351 SCM_ASSERT_TYPE (parser, parser_smob, SCM_ARG2, __FUNCTION__, "parser");
353 SCM val= parser->lexer_->lookup_identifier (ly_scm2string (scm_symbol_to_string (symbol)));
354 if (val != SCM_UNDEFINED)
360 LY_DEFINE (ly_parser_parse_string, "ly:parser-parse-string",
362 (SCM parser_smob, SCM ly_code),
363 "Parse the string LY_CODE with PARSER_SMOB."
364 "Upon failure, throw @code{ly-file-failed} key.")
367 My_lily_parser *parser = unsmob_my_lily_parser (parser_smob);
369 SCM_ASSERT_TYPE (parser, parser_smob, SCM_ARG1, __FUNCTION__, "parser");
370 SCM_ASSERT_TYPE (ly_c_string_p (ly_code), ly_code, SCM_ARG2, __FUNCTION__, "string");
372 parser->parse_string (ly_scm2string (ly_code));
374 return SCM_UNSPECIFIED;
378 get_paper (My_lily_parser *parser)
380 SCM id = parser->lexer_->lookup_identifier ("$defaultpaper");
381 Output_def *paper = unsmob_output_def (id);
382 paper = paper ? paper->clone () : new Output_def;
383 paper->set_variable (ly_symbol2scm ("is-paper"), SCM_BOOL_T);
385 paper->parent_ =unsmob_output_def (parser->lexer_->lookup_identifier ("$defaultbookpaper"));
391 get_midi (My_lily_parser *parser)
393 SCM id = parser->lexer_->lookup_identifier ("$defaultmidi");
394 Output_def *paper = unsmob_output_def (id);
395 paper = paper ? paper->clone () : new Output_def;
396 paper->set_variable (ly_symbol2scm ("is-midi"), SCM_BOOL_T);
402 get_bookpaper (My_lily_parser *parser)
404 SCM id = parser->lexer_->lookup_identifier ("$defaultbookpaper");
405 Output_def *paper = unsmob_output_def (id);
407 paper = paper ? dynamic_cast<Output_def*> (paper->clone ()) : new Output_def;
408 paper->set_variable (ly_symbol2scm ("is-bookpaper"), SCM_BOOL_T);
414 TODO: move this to Scheme? Why take the parser arg, and all the back
415 & forth between scm and c++?
417 LY_DEFINE (ly_parser_print_score, "ly:parser-print-score",
419 (SCM parser_smob, SCM score_smob),
420 "Print score, i.e., the classic way.")
422 My_lily_parser *parser = unsmob_my_lily_parser (parser_smob);
423 Score *score = unsmob_score (score_smob);
425 SCM_ASSERT_TYPE (parser, parser_smob, SCM_ARG1, __FUNCTION__, "parser");
426 SCM_ASSERT_TYPE (score, score_smob, SCM_ARG2, __FUNCTION__, "score");
428 SCM header = ly_c_module_p (score->header_) ? score->header_
429 : parser->lexer_->lookup_identifier ("$globalheader");
431 File_name outname (parser->output_basename_);
432 int *c = &parser->book_count_;
434 outname.base_ += "-" + to_string (*c);
437 SCM os = scm_makfrom0str (outname.to_string ().to_str0 ());
438 SCM bookpaper = get_bookpaper (parser)->self_scm ();
439 for (int i = 0; i < score->defs_.size (); i++)
440 default_rendering (score->music_, score->defs_[i]->self_scm (),
444 if (score->defs_.is_empty ())
446 Output_def *paper = get_paper (parser);
447 default_rendering (score->music_, paper->self_scm (),
448 get_bookpaper (parser)->self_scm (),
450 scm_gc_unprotect_object (paper->self_scm ());
452 return SCM_UNDEFINED;
455 LY_DEFINE (ly_parser_print_book, "ly:parser-print-book",
457 (SCM parser_smob, SCM book_smob),
460 My_lily_parser *parser = unsmob_my_lily_parser (parser_smob);
461 Book *book = unsmob_book (book_smob);
462 Output_def *bp = unsmob_output_def (parser->lexer_->lookup_identifier ("$defaultbookpaper"));
464 SCM_ASSERT_TYPE (parser, parser_smob, SCM_ARG1, __FUNCTION__, "Lilypond parser");
465 SCM_ASSERT_TYPE (book, book_smob, SCM_ARG2, __FUNCTION__, "Book");
467 /* ugh. changing argument.*/
468 book->bookpaper_ = bp;
470 File_name outname (parser->output_basename_);
471 int *c = &parser->book_count_;
473 outname.base_ += "-" + to_string (*c);
476 Output_def *paper = get_paper (parser);
478 Paper_book* pb = book->process (outname.to_string (), paper);
480 pb->output (outname.to_string ());
482 scm_gc_unprotect_object (paper->self_scm ());
483 scm_gc_unprotect_object (pb->self_scm ());
485 return SCM_UNDEFINED;