2 lily-guile.cc -- implement assorted SCM interface functions
4 source file of the GNU LilyPond music typesetter
6 (c) 1998--2007 Jan Nieuwenhuizen <janneke@gnu.org>
7 Han-Wen Nienhuys <hanwen@xs4all.nl>
10 #include "lily-guile.hh"
14 #include <cstring> /* strdup, strchr */
19 #include "dimensions.hh"
20 #include "direction.hh"
21 #include "file-path.hh"
22 #include "international.hh"
23 #include "libc-extension.hh"
28 #include "string-convert.hh"
29 #include "source-file.hh"
41 SCM port = scm_mkstrport (SCM_INUM0,
42 scm_make_string (SCM_INUM0, SCM_UNDEFINED),
45 // SCM write = scm_eval_3 (ly_symbol2scm ("write"), s, SCM_EOL);
46 SCM write = scm_primitive_eval (ly_symbol2scm ("write"));
48 // scm_apply (write, port, SCM_EOL);
49 scm_call_2 (write, s, port);
50 return scm_strport_to_string (port);
56 return scm_list_n (ly_symbol2scm ("quote"), s, SCM_UNDEFINED);
60 ly_symbol2string (SCM s)
63 Ugh. this is not very efficient.
65 SCM str = scm_symbol_to_string (s);
66 return ly_scm2string (str);
70 gulp_file_to_string (string fn, bool must_exist, int size)
72 string s = global_path.find (fn);
77 string e = _f ("cannot find file: `%s'", fn);
79 e += _f ("(load path: `%s')", global_path.to_string ());
86 if (be_verbose_global)
87 progress_indication ("[" + s);
89 vector<char> chars = gulp_file (s, size);
90 string result (&chars[0], chars.size ());
92 if (be_verbose_global)
93 progress_indication ("]");
99 // maybe gdb 5.0 becomes quicker if it doesn't do fancy C++ typing?
101 ly_display_scm (SCM s)
103 scm_display (s, scm_current_output_port ());
104 scm_newline (scm_current_output_port ());
112 ly_scm2string (SCM str)
114 assert (scm_is_string (str));
115 return string (scm_i_string_chars (str),
116 (int) scm_i_string_length (str));
120 ly_string2scm (string const &str)
122 return scm_from_locale_stringn (str.c_str(),
128 ly_scm2newstr (SCM str, size_t *lenp)
130 SCM_ASSERT_TYPE (scm_is_string (str), str, SCM_ARG1, __FUNCTION__, "string");
132 size_t len = scm_i_string_length (str);
133 if (char *new_str = (char *) malloc ((len + 1) * sizeof (char)))
135 memcpy (new_str, scm_i_string_chars (str), len);
151 index_get_cell (SCM s, Direction d)
155 return (d == LEFT) ? scm_car (s) : scm_cdr (s);
159 index_set_cell (SCM s, Direction d, SCM v)
162 scm_set_car_x (s, v);
164 scm_set_cdr_x (s, v);
169 is_number_pair (SCM p)
171 return scm_is_pair (p)
172 && scm_is_number (scm_car (p)) && scm_is_number (scm_cdr (p));
179 return scm_ihashv (s, ~1u);
186 if (scm_is_number (s))
188 int i = scm_to_int (s);
189 return i == 0 || i == 1;
197 return scm_is_bool (s) && ly_scm2bool (s);
206 return scm_is_integer (s) ? (Direction) scm_to_int (s) : CENTER;
210 robust_scm2dir (SCM d, Direction def)
212 if (is_direction (d))
220 if (scm_is_number (s))
222 int i = scm_to_int (s);
223 return i >= -1 && i <= 1;
232 ly_scm2interval (SCM p)
234 return Interval (scm_to_double (scm_car (p)), scm_to_double (scm_cdr (p)));
238 ly_scm2realdrul (SCM p)
240 return Drul_array<Real> (scm_to_double (scm_car (p)),
241 scm_to_double (scm_cdr (p)));
245 ly_interval2scm (Drul_array<Real> i)
247 return scm_cons (scm_from_double (i[LEFT]), scm_from_double (i[RIGHT]));
252 robust_scm2interval (SCM k, Drul_array<Real> v)
257 if (is_number_pair (k))
258 i = ly_scm2interval (k);
263 robust_scm2drul (SCM k, Drul_array<Real> v)
265 if (is_number_pair (k))
266 v = ly_scm2interval (k);
271 robust_scm2booldrul (SCM k, Drul_array<bool> def)
275 def[LEFT] = to_boolean (scm_car (k));
276 def[RIGHT] = to_boolean (scm_cdr (k));
285 ly_offset2scm (Offset o)
287 return scm_cons (scm_from_double (o[X_AXIS]), scm_from_double (o[Y_AXIS]));
291 ly_scm2offset (SCM s)
293 return Offset (scm_to_double (scm_car (s)),
294 scm_to_double (scm_cdr (s)));
298 robust_scm2offset (SCM k, Offset o)
300 if (is_number_pair (k))
301 o = ly_scm2offset (k);
305 ly_offsets2scm (vector<Offset> os)
309 for (vsize i = 0; i < os.size (); i++)
311 *tail = scm_cons (ly_offset2scm (os[i]), SCM_EOL);
312 tail = SCM_CDRLOC(*tail);
318 ly_scm2offsets (SCM s)
321 for (; scm_is_pair (s); s = scm_cdr (s))
322 os.push_back (ly_scm2offset (scm_car (s)));
334 alist_equal_p (SCM a, SCM b)
337 scm_is_pair (s); s = scm_cdr (s))
339 SCM key = scm_caar (s);
340 SCM val = scm_cdar (s);
341 SCM l = scm_assoc (key, b);
344 || !ly_is_equal (scm_cdr (l), val))
352 ly_alist_vals (SCM alist)
355 for (SCM p = alist; scm_is_pair (p); p = scm_cdr (p))
356 x = scm_cons (scm_cdar (p), x);
364 /* Return I-th element, or last elt L. If I < 0, then we take the first
367 PRE: length (L) > 0 */
369 robust_list_ref (int i, SCM l)
371 while (i-- > 0 && scm_is_pair (scm_cdr (l)))
378 ly_deep_copy (SCM src)
380 if (scm_is_pair (src))
381 return scm_cons (ly_deep_copy (scm_car (src)), ly_deep_copy (scm_cdr (src)));
382 else if (scm_is_vector (src))
384 int len = scm_c_vector_length (src);
385 SCM nv = scm_c_make_vector (len, SCM_UNDEFINED);
386 for (int i = 0;i < len; i++)
388 SCM si = scm_from_int (i);
389 scm_vector_set_x (nv, si, ly_deep_copy (scm_vector_ref (src, si)));
400 print_scm_val (SCM val)
402 string realval = ly_scm2string (ly_write2scm (val));
403 if (realval.length () > 200)
404 realval = realval.substr (0, 100)
406 + realval.substr (realval.length () - 100);
411 type_check_assignment (SCM sym, SCM val, SCM type_symbol)
419 TODO: should remove #f from allowed vals?
421 if (val == SCM_EOL || val == SCM_BOOL_F)
424 if (!scm_is_symbol (sym))
429 This is used for autoBeamSettings.
431 TODO: deprecate the use of \override and \revert for
434 or use a symbol autoBeamSettingS?
439 SCM type = scm_object_property (sym, type_symbol);
441 if (type != SCM_EOL && !ly_is_procedure (type))
443 warning (_f ("cannot find property type-check for `%s' (%s).",
444 ly_symbol2string (sym).c_str (),
445 ly_symbol2string (type_symbol).c_str ())
446 + " " + _ ("perhaps a typing error?"));
448 /* Be strict when being anal :) */
449 if (do_internal_type_checking_global)
450 scm_throw (ly_symbol2scm ("ly-file-failed"), scm_list_3 (ly_symbol2scm ("typecheck"),
453 warning (_ ("doing assignment anyway"));
458 && ly_is_procedure (type)
459 && scm_call_1 (type, val) == SCM_BOOL_F)
462 SCM typefunc = ly_lily_module_constant ("type-name");
463 SCM type_name = scm_call_1 (typefunc, type);
465 warning (_f ("type check for `%s' failed; value `%s' must be of type `%s'",
466 ly_symbol2string (sym).c_str (),
468 ly_scm2string (type_name).c_str ()));
469 progress_indication ("\n");
477 zijn deze nou handig?
478 zijn ze er al in scheme, maar heten ze anders? */
480 /* Remove doubles from (sorted) list */
484 SCM unique = SCM_EOL;
485 for (SCM i = list; scm_is_pair (i); i = scm_cdr (i))
487 if (!scm_is_pair (scm_cdr (i))
488 || !ly_is_equal (scm_car (i), scm_cadr (i)))
489 unique = scm_cons (scm_car (i), unique);
491 return scm_reverse_x (unique, SCM_EOL);
495 /* Split list at member s, removing s.
496 Return (BEFORE . AFTER) */
498 ly_split_list (SCM s, SCM list)
500 SCM before = SCM_EOL;
502 for (; scm_is_pair (after);)
504 SCM i = scm_car (after);
505 after = scm_cdr (after);
506 if (ly_is_equal (i, s))
508 before = scm_cons (i, before);
510 return scm_cons (scm_reverse_x (before, SCM_EOL), after);
522 display stuff without using stack
527 SCM p = scm_current_output_port ();
530 for (; scm_is_pair (s); s = scm_cdr (s))
532 scm_display (scm_car (s), p);
536 return SCM_UNSPECIFIED;
540 int_list_to_slice (SCM l)
544 for (; scm_is_pair (l); l = scm_cdr (l))
545 if (scm_is_number (scm_car (l)))
546 s.add_point (scm_to_int (scm_car (l)));
551 robust_scm2double (SCM k, double x)
553 if (scm_is_number (k))
554 x = scm_to_double (k);
560 robust_scm2string (SCM k, string s)
562 if (scm_is_string (k))
563 s = ly_scm2string (k);
568 robust_scm2int (SCM k, int o)
570 if (scm_integer_p (k) == SCM_BOOL_T)
577 ly_rational2scm (Rational r)
579 return scm_divide (scm_from_int (r.numerator ()), scm_from_int (r.denominator ()));
584 ly_scm2rational (SCM r)
586 return Rational (scm_to_int (scm_numerator (r)),
587 scm_to_int (scm_denominator (r)));
592 alist_to_hashq (SCM alist)
594 int i = scm_ilength (alist);
596 return scm_c_make_hash_table (0);
598 SCM tab = scm_c_make_hash_table (i);
599 for (SCM s = alist; scm_is_pair (s); s = scm_cdr (s))
601 SCM pt = scm_cdar (s);
602 scm_hashq_set_x (tab, scm_caar (s), pt);
608 ly_hash2alist (SCM tab)
610 SCM func = ly_lily_module_constant ("hash-table->alist");
611 return scm_call_1 (func, tab);
620 mangle_cxx_identifier (string cxx_id)
622 if (cxx_id.substr (0, 3) == "ly_")
623 cxx_id = cxx_id.replace (0, 3, "ly:");
626 cxx_id = String_convert::to_lower (cxx_id);
627 cxx_id = "ly:" + cxx_id;
629 if (cxx_id.substr (cxx_id.length () - 2) == "_p")
630 cxx_id = cxx_id.replace (cxx_id.length () - 2, 1, "?");
631 else if (cxx_id.substr (cxx_id.length () - 2) == "_x")
632 cxx_id = cxx_id.replace (cxx_id.length () - 2, 1, "!");
634 cxx_id = replace_all (cxx_id, '_', '-');
641 ly_string_array_to_scm (vector<string> a)
644 for (vsize i = a.size (); i ; i--)
645 s = scm_cons (ly_symbol2scm (a[i - 1].c_str ()), s);
649 /* SYMBOLS is a whitespace separated list. */
651 parse_symbol_list (char const *symbols)
653 while (isspace (*symbols))
656 replace_all (s, '\n', ' ');
657 replace_all (s, '\t', ' ');
658 return ly_string_array_to_scm (string_split (s, ' '));
663 ly_is_fraction (SCM x)
665 return SCM_FRACTIONP(x);
668 struct ly_t_double_cell
676 /* inserts at front, removing duplicates */
677 SCM ly_assoc_prepend_x (SCM alist, SCM key, SCM val)
679 return scm_acons (key, val, scm_assoc_remove_x (alist, key));