X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Flily-guile.cc;h=5c9d9b6b2116864ee73a51d5da26622b68556d1a;hb=bf79f6426e9c1bed311ab88bec13aee3376f6916;hp=ccca4cee06ef40dcf65c554f79f8c6b5a83f43e8;hpb=0817e0513d1016ff22a633b6fee20ddba2a062f2;p=lilypond.git diff --git a/lily/lily-guile.cc b/lily/lily-guile.cc index ccca4cee06..5c9d9b6b21 100644 --- a/lily/lily-guile.cc +++ b/lily/lily-guile.cc @@ -3,9 +3,8 @@ source file of the GNU LilyPond music typesetter - (c) 1998--2001 Jan Nieuwenhuizen - - Han-Wen Nienhuys + (c) 1998--2004 Jan Nieuwenhuizen + Han-Wen Nienhuys */ @@ -13,15 +12,33 @@ #include #include /* isinf */ #include /* strdup, strchr */ +#include + +#include "lily-proto.hh" +#include "version.hh" + +/* MacOS S fix: + source-file.hh includes cmath which undefines isinf and isnan + + FIXME: #ifdef MACOS_X? +*/ +inline int my_isinf (Real r) { return isinf (r); } +inline int my_isnan (Real r) { return isnan (r); } + + #include "libc-extension.hh" #include "lily-guile.hh" #include "main.hh" -#include "simple-file-storage.hh" #include "file-path.hh" -#include "debug.hh" +#include "warn.hh" #include "direction.hh" #include "offset.hh" #include "interval.hh" +#include "pitch.hh" +#include "dimensions.hh" +#include "source-file.hh" + +// #define TEST_GC SCM ly_last (SCM list) @@ -29,13 +46,6 @@ ly_last (SCM list) return ly_car (scm_last_pair (list)); } -SCM -ly_str02scm (char const*c) -{ - // this all really sucks, guile should take char const* arguments! - return gh_str02scm ((char*)c); -} - SCM ly_write2scm (SCM s) @@ -48,82 +58,24 @@ ly_write2scm (SCM s) SCM write = scm_primitive_eval (ly_symbol2scm ("write")); // scm_apply (write, port, SCM_EOL); - gh_call2 (write, s, port); + scm_call_2 (write, s, port); return scm_strport_to_string (port); } -/* - Pass string to scm parser, evaluate one expression. - Return result value and #chars read. - - Thanks to Gary Houston - - Need guile-1.3.4 (>1.3 anyway) for ftell on str ports -- jcn -*/ -SCM -ly_parse_scm (char const* s, int* n) -{ - SCM str = ly_str02scm (s); - SCM port = scm_mkstrport (SCM_INUM0, str, SCM_OPN | SCM_RDNG, - "ly_eval_scm_0str"); - SCM from = scm_ftell (port); - - SCM form; - SCM answer = SCM_UNSPECIFIED; - - /* Read expression from port */ - if (!SCM_EOF_OBJECT_P (form = scm_read (port))) - answer = scm_primitive_eval (form); - - /* - After parsing - - (begin (foo 1 2)) - - all seems fine, but after parsing - - (foo 1 2) - - read_buf has been advanced to read_pos - 1, - so that scm_ftell returns 1, instead of #parsed chars - */ - - /* - urg: reset read_buf for scm_ftell - shouldn't scm_read () do this for us? - */ - scm_fill_input (port); - SCM to = scm_ftell (port); - *n = gh_scm2int (to) - gh_scm2int (from); - - /* Don't close the port here; if we re-enter this function via a - continuation, then the next time we enter it, we'll get an error. - It's a string port anyway, so there's no advantage to closing it - early. - - scm_close_port (port); - */ - - return answer; -} - SCM ly_quote_scm (SCM s) { return scm_list_n (ly_symbol2scm ("quote"), s, SCM_UNDEFINED); } - - String ly_symbol2string (SCM s) { - assert (gh_symbol_p (s)); + assert (ly_c_symbol_p (s)); return String ((Byte*)SCM_STRING_CHARS (s), (int) SCM_STRING_LENGTH (s)); } - String gulp_file_to_string (String fn) { @@ -132,64 +84,76 @@ gulp_file_to_string (String fn) { String e = _f ("can't find file: `%s'", fn); e += " "; - e += _f ("(load path: `%s')", global_path.str ()); + e += _f ("(load path: `%s')", global_path.to_string ()); error (e); } else if (verbose_global_b) progress_indication ("[" + s); - - Simple_file_storage f (s); - String result (f.ch_C ()); + int n; + char * str = gulp_file (s, &n); + String result (str); + delete[] str; + if (verbose_global_b) progress_indication ("]"); + return result; } -SCM -ly_gulp_file (SCM fn) +LY_DEFINE (ly_gulp_file, "ly:gulp-file", + 1, 0, 0, (SCM name), + "Read the file @var{name}, and return its contents in a string. " + "The file is looked up using the search path.") { - return ly_str02scm (gulp_file_to_string (ly_scm2string (fn)).ch_C ()); + SCM_ASSERT_TYPE (ly_c_string_p (name), name, SCM_ARG1, __FUNCTION__, "string"); + return scm_makfrom0str (gulp_file_to_string (ly_scm2string (name)).to_str0 ()); } -/** - Read a file, and shove it down GUILE. GUILE also has file read - functions, but you can't fiddle with the path of those. - */ -void -read_lily_scm_file (String fn) -{ - gh_eval_str ((char *) gulp_file_to_string (fn).ch_C ()); -} - extern "C" { // maybe gdb 5.0 becomes quicker if it doesn't do fancy C++ typing? void ly_display_scm (SCM s) { - gh_display (s); - gh_newline (); + scm_display (s, scm_current_output_port ()); + scm_newline (scm_current_output_port ()); } }; String ly_scm2string (SCM s) { - assert (gh_string_p (s)); + assert (ly_c_string_p (s)); - size_t len; - char *p = gh_scm2newstr (s , &len); - + char *p = SCM_STRING_CHARS (s); String r (p); - - free (p); return r; } +char * +ly_scm2newstr (SCM str, size_t *lenp) +{ + SCM_ASSERT_TYPE (ly_c_string_p (str), str, SCM_ARG1, __FUNCTION__, "string"); + + size_t len = SCM_STRING_LENGTH (str); + if (char *new_str = (char *) malloc ((len + 1) * sizeof (char))) + { + memcpy (new_str, SCM_STRING_CHARS (str), len); + new_str[len] = '\0'; + + if (lenp) + *lenp = len; + + return new_str; + } + return 0; +} + SCM -index_cell (SCM s, Direction d) +index_get_cell (SCM s, Direction d) { + assert (d); return (d == LEFT) ? ly_car (s) : ly_cdr (s); } @@ -198,41 +162,41 @@ SCM index_set_cell (SCM s, Direction d, SCM v) { if (d == LEFT) - gh_set_car_x (s, v); + scm_set_car_x (s, v); else if (d == RIGHT) - gh_set_cdr_x (s, v); + scm_set_cdr_x (s, v); return s; } -SCM -ly_warning (SCM str) +LY_DEFINE (ly_warn, "ly:warn", + 1, 0, 0, (SCM str), + "Scheme callable function to issue the warning @code{msg}.") { - assert (gh_string_p (str)); + SCM_ASSERT_TYPE (ly_c_string_p (str), str, SCM_ARG1, __FUNCTION__, "string"); + progress_indication ("\n"); warning ("lily-guile: " + ly_scm2string (str)); return SCM_BOOL_T; } -SCM -ly_isdir_p (SCM s) +LY_DEFINE (ly_dir_p, "ly:dir?", + 1, 0, 0, (SCM s), + "type predicate. A direction is @code{-1}, @code{0} or " + "@code{1}, where @code{-1} represents " + "left or down and @code{1} represents right or up.") { - if (gh_number_p (s)) + if (ly_c_number_p (s)) { - int i = gh_scm2int (s); + int i = ly_scm2int (s); return (i>= -1 && i <= 1) ? SCM_BOOL_T : SCM_BOOL_F; } return SCM_BOOL_F; } bool -ly_number_pair_p (SCM p) -{ - return gh_pair_p (p) && gh_number_p (ly_car (p)) && gh_number_p (ly_cdr (p)); -} - -bool -ly_axis_p (SCM a) +is_number_pair (SCM p) { - return gh_number_p (a) && (gh_scm2int (a) == 0 || gh_scm2int (a) == 1); + return ly_c_pair_p (p) + && ly_c_number_p (ly_car (p)) && ly_c_number_p (ly_cdr (p)); } typedef void (*Void_fptr) (); @@ -245,85 +209,94 @@ void add_scm_init_func (void (*f) ()) scm_init_funcs_->push (f); } -extern void init_cxx_function_smobs (); void -init_lily_guile () +ly_init_ly_module (void *) { - init_cxx_function_smobs (); for (int i=scm_init_funcs_->size () ; i--;) - (scm_init_funcs_->elem (i)) (); + (scm_init_funcs_->elem (i)) (); + + if (verbose_global_b) + progress_indication ("\n"); + + scm_primitive_load_path (scm_makfrom0str ("lily.scm")); } -unsigned int ly_scm_hash (SCM s) +SCM global_lily_module; + +void +ly_c_init_guile () { - return scm_ihashv (s, ~1u); + global_lily_module = scm_c_define_module ("lily", ly_init_ly_module, 0); + scm_c_use_module ("lily"); } - +unsigned int +ly_scm_hash (SCM s) +{ + return scm_ihashv (s, ~1u); +} bool -isdir_b (SCM s) +is_direction (SCM s) { - if (gh_number_p (s)) + if (ly_c_number_p (s)) { - int i = gh_scm2int (s); + int i = ly_scm2int (s); return i>= -1 && i <= 1; } return false; } - bool -isaxis_b (SCM s) +is_axis (SCM s) { - if (gh_number_p (s)) + if (ly_c_number_p (s)) { - int i = gh_scm2int (s); + int i = ly_scm2int (s); return i== 0 || i == 1; } return false; } - Direction to_dir (SCM s) { - return (Direction) gh_scm2int (s); + return SCM_INUMP (s) ? (Direction) ly_scm2int (s) : CENTER; } Interval ly_scm2interval (SCM p) { - return Interval (gh_scm2double (ly_car (p)), - gh_scm2double (ly_cdr (p))); + return Interval (ly_scm2double (ly_car (p)), ly_scm2double (ly_cdr (p))); } -SCM -ly_interval2scm (Interval i) +Drul_array +ly_scm2realdrul (SCM p) { - return gh_cons (gh_double2scm (i[LEFT]), - gh_double2scm (i[RIGHT])); + return Drul_array (ly_scm2double (ly_car (p)), + ly_scm2double (ly_cdr (p))); } - - +SCM +ly_interval2scm (Drul_array i) +{ + return scm_cons (scm_make_real (i[LEFT]), scm_make_real (i[RIGHT])); +} bool to_boolean (SCM s) { - return gh_boolean_p (s) && gh_scm2bool (s); + return ly_c_boolean_p (s) && ly_scm2bool (s); } -/* - Appendable list L: the cdr contains the list, the car the last cons - in the list. - */ +/* Appendable list L: the cdr contains the list, the car the last cons + in the list. */ SCM appendable_list () { - SCM s = gh_cons (SCM_EOL, SCM_EOL); - gh_set_car_x (s, s); + SCM s = scm_cons (SCM_EOL, SCM_EOL); + scm_set_car_x (s, s); return s; } @@ -331,149 +304,92 @@ appendable_list () void appendable_list_append (SCM l, SCM elt) { - SCM newcons = gh_cons (elt, SCM_EOL); + SCM newcons = scm_cons (elt, SCM_EOL); - gh_set_cdr_x (ly_car (l), newcons); - gh_set_car_x (l, newcons); + scm_set_cdr_x (ly_car (l), newcons); + scm_set_car_x (l, newcons); } - SCM ly_offset2scm (Offset o) { - return gh_cons (gh_double2scm (o[X_AXIS]), gh_double2scm (o[Y_AXIS])); + return scm_cons (scm_make_real (o[X_AXIS]), scm_make_real (o[Y_AXIS])); } Offset ly_scm2offset (SCM s) { - return Offset (gh_scm2double (ly_car (s)), - gh_scm2double (ly_cdr (s))); -} - -SCM -ly_type (SCM exp) -{ - char const * cp = "unknown"; - if (gh_number_p (exp)) - { - cp = "number"; - } - else if (gh_string_p (exp)) - { - cp = "string"; - } - else if (gh_procedure_p (exp)) - { - cp = "procedure"; - } - else if (gh_boolean_p (exp)) - { - cp = "boolean"; - } - else if (gh_pair_p (exp)) - { - cp = "list"; - } - - return ly_str02scm (cp); + return Offset (ly_scm2double (ly_car (s)), + ly_scm2double (ly_cdr (s))); } -/* - convert without too many decimals, and leave a space at the end. - */ - - -SCM -ly_number2string (SCM s) +LY_DEFINE (ly_number2string, "ly:number->string", + 1, 0, 0, (SCM s), + "Convert @var{num} to a string without generating many decimals.") { - assert (gh_number_p (s)); + SCM_ASSERT_TYPE (ly_c_number_p (s), s, SCM_ARG1, __FUNCTION__, "number"); char str[400]; // ugh. if (scm_exact_p (s) == SCM_BOOL_F) { - Real r (gh_scm2double (s)); + Real r (ly_scm2double (s)); - if (isinf (r) || isnan (r)) + if (my_isinf (r) || my_isnan (r)) { programming_error ("Infinity or NaN encountered while converting Real number; setting to zero."); r = 0.0; } - sprintf (str, "%8.4f ", r); + sprintf (str, "%08.4f", r); } else - { - sprintf (str, "%d ", gh_scm2int (s)); - } + sprintf (str, "%d", ly_scm2int (s)); - return ly_str02scm (str); + return scm_makfrom0str (str); } -/* - Undef this to see if GUILE GC is causing too many swaps. - */ -// #define TEST_GC - -#ifdef TEST_GC -#include -static void * -greet_sweep (void *dummy1, void *dummy2, void *dummy3) +LY_DEFINE (ly_version, "ly:version", 0, 0, 0, (), + "Return the current lilypond version as a list, e.g. @code{(1 3 127 uu1)}. ") { - fprintf (stderr, "entering sweep\n"); + char const* vs = "\'(" MAJOR_VERSION " " MINOR_VERSION " " PATCH_LEVEL " " MY_PATCH_LEVEL ")" ; + + return scm_c_eval_string ((char*)vs); } -static void * -wave_sweep_goodbye (void *dummy1, void *dummy2, void *dummy3) +LY_DEFINE (ly_unit, "ly:unit", 0, 0, 0, (), + "Return the unit used for lengths as a string.") { - fprintf (stderr, "leaving sweep\n"); + return scm_makfrom0str (INTERNAL_UNIT); } -#endif -#include "version.hh" -SCM -ly_version () -{ - char const* vs = "\' (" MAJOR_VERSION " " MINOR_VERSION " " PATCH_LEVEL " " MY_PATCH_LEVEL ")" ; - - return gh_eval_str ((char*)vs); -} -static void -init_functions () +LY_DEFINE (ly_dimension_p, "ly:dimension?", 1, 0, 0, (SCM d), + "Return @var{d} is a number. Used to distinguish length " + "variables from normal numbers.") { - scm_c_define_gsubr ("ly-warn", 1, 0, 0, - (Scheme_function_unknown)ly_warning); - scm_c_define_gsubr ("ly-version", 0, 0, 0, - (Scheme_function_unknown)ly_version); - scm_c_define_gsubr ("ly-gulp-file", 1,0, 0, - (Scheme_function_unknown)ly_gulp_file); - scm_c_define_gsubr ("dir?", 1,0, 0, (Scheme_function_unknown)ly_isdir_p); - scm_c_define_gsubr ("ly-number->string", 1, 0,0, - (Scheme_function_unknown) ly_number2string); - - -#ifdef TEST_GC - scm_c_hook_add (&scm_before_mark_c_hook, greet_sweep, 0, 0); - scm_c_hook_add (&scm_before_sweep_c_hook, wave_sweep_goodbye, 0, 0); -#endif + return scm_number_p (d); } -ADD_SCM_INIT_FUNC (funcs, init_functions); - SCM -ly_deep_copy (SCM l) +ly_deep_copy (SCM src) { - if (gh_pair_p (l)) + if (ly_c_pair_p (src)) + return scm_cons (ly_deep_copy (ly_car (src)), ly_deep_copy (ly_cdr (src))); + else if (ly_c_vector_p (src)) { - return gh_cons (ly_deep_copy (ly_car (l)), ly_deep_copy (ly_cdr (l))); + int len = SCM_VECTOR_LENGTH (src); + SCM nv = scm_c_make_vector (len, SCM_UNDEFINED); + for (int i =0 ; i < len ; i++) + { + SCM si = scm_int2num (i); + scm_vector_set_x (nv, si, ly_deep_copy (scm_vector_ref (src, si))); + } } - else - return l; + return src; } @@ -482,10 +398,10 @@ ly_deep_copy (SCM l) SCM ly_assoc_chain (SCM key, SCM achain) { - if (gh_pair_p (achain)) + if (ly_c_pair_p (achain)) { SCM handle = scm_assoc (key, ly_car (achain)); - if (gh_pair_p (handle)) + if (ly_c_pair_p (handle)) return handle; else return ly_assoc_chain (key, ly_cdr (achain)); @@ -494,25 +410,66 @@ ly_assoc_chain (SCM key, SCM achain) return SCM_BOOL_F; } -/* - LIST has the form "sym1 sym2 sym3" - */ +/* looks the key up in the cdrs of the alist-keys + - ignoring the car and ignoring non-pair keys. + Returns first match found, i.e. + + alist = ((1 . 10) + ((1 . 2) . 11) + ((2 . 1) . 12) + ((3 . 0) . 13) + ((4 . 1) . 14) ) + +I would like (ly_assoc_cdr 1) to return 12 - because it's the first +element with the cdr of the key = 1. In other words (alloc_cdr key) +corresponds to call + +(alloc (anything . key)) + + + +*/ +SCM +ly_assoc_cdr (SCM key, SCM alist) +{ + if (ly_c_pair_p (alist)) + { + SCM trykey = ly_caar (alist); + if (ly_c_pair_p (trykey) && to_boolean (scm_equal_p (key, ly_cdr (trykey)))) + return ly_car (alist); + else + return ly_assoc_cdr (key, ly_cdr (alist)); + } + return SCM_BOOL_F; +} + +/* LST has the form "sym1 sym2 sym3\nsym4\nsym5" + i.e. \n and ' ' can be used interchangeably as separators. */ SCM -parse_symbol_list (const char * list) +parse_symbol_list (char const *lst) { - char * s = strdup (list); + char *s = strdup (lst); char *orig = s; SCM create_list = SCM_EOL; - if (!s[0] ) - s = 0; + char * e = s + strlen (s) - 1; + while (e >= s && isspace (*e)) + *e-- = 0; + + for (char * p = s; *p; p++) + if (*p == '\n') + *p = ' '; + + if (!s[0]) + s = 0; + while (s) { char *next = strchr (s, ' '); if (next) *next++ = 0; - create_list = gh_cons (ly_symbol2scm (s), create_list); + create_list = scm_cons (ly_symbol2scm (s), create_list); s = next; } @@ -520,30 +477,321 @@ parse_symbol_list (const char * list) return create_list; } - SCM -ly_truncate_list (int k, SCM l ) +ly_truncate_list (int k, SCM lst) { if (k == 0) - { - l = SCM_EOL; - } + lst = SCM_EOL; else { - SCM s = l; + SCM s = lst; k--; - for (; gh_pair_p (s) && k--; s = ly_cdr (s)) + for (; ly_c_pair_p (s) && k--; s = ly_cdr (s)) ; - if (gh_pair_p (s)) + if (ly_c_pair_p (s)) + scm_set_cdr_x (s, SCM_EOL); + } + return lst; +} + +String +print_scm_val (SCM val) +{ + String realval = ly_scm2string (ly_write2scm (val)); + if (realval.length () > 200) + realval = realval.left_string (100) + + "\n :\n :\n" + + realval.right_string (100); + return realval; +} + +bool +type_check_assignment (SCM sym, SCM val, SCM type_symbol) +{ + bool ok = true; + + /* + Always succeeds. + + + TODO: should remove #f from allowed vals? + */ + if (val == SCM_EOL || val == SCM_BOOL_F) + return ok; + + if (!ly_c_symbol_p (sym)) +#if 0 + return false; +#else + /* + This is used for autoBeamSettings. + + TODO: deprecate the use of \override and \revert for + autoBeamSettings? + + or use a symbol autoBeamSettingS? + */ + return true; +#endif + + SCM type = scm_object_property (sym, type_symbol); + + if (type != SCM_EOL && !ly_c_procedure_p (type)) + { + warning (_f ("Can't find property type-check for `%s' (%s).", + ly_symbol2string (sym).to_str0 (), + ly_symbol2string (type_symbol).to_str0 ()) + + " " + _ ("Perhaps you made a typing error?")); + + /* Be strict when being anal :) */ + if (internal_type_checking_global_b) + abort (); + + warning (_ ("Doing assignment anyway.")); + } + else + { + if (val != SCM_EOL + && ly_c_procedure_p (type) + && scm_call_1 (type, val) == SCM_BOOL_F) { - gh_set_cdr_x (s, SCM_EOL); + SCM errport = scm_current_error_port (); + ok = false; + SCM typefunc = ly_scheme_function ("type-name"); + SCM type_name = scm_call_1 (typefunc, type); + + + scm_puts (_f ("Type check for `%s' failed; value `%s' must be of type `%s'", + ly_symbol2string (sym).to_str0 (), + print_scm_val (val), + ly_scm2string (type_name).to_str0 ()).to_str0 (), + errport); + scm_puts ("\n", errport); } } - return l; + return ok; +} + + +/* some SCM abbrevs + + zijn deze nou handig? + zijn ze er al in scheme, maar heten ze anders? */ + + +/* Remove doubles from (sorted) list */ +SCM +ly_unique (SCM list) +{ + SCM unique = SCM_EOL; + for (SCM i = list; ly_c_pair_p (i); i = ly_cdr (i)) + { + if (!ly_c_pair_p (ly_cdr (i)) + || !ly_c_equal_p (ly_car (i), ly_cadr (i))) + unique = scm_cons (ly_car (i), unique); + } + return scm_reverse_x (unique, SCM_EOL); +} + + +static int +scm_default_compare (void const *a, void const *b) +{ + SCM pa = *(SCM*) a; + SCM pb = *(SCM*) b; + if (pa == pb) + return 0; + return pa < pb ? -1 : 1; +} + +/* Modify LST in place: qsort it. */ +SCM +ly_list_qsort_uniq_x (SCM lst) +{ + int len = scm_ilength (lst); + SCM *arr = new SCM[len]; + int k = 0; + for (SCM s = lst; SCM_NNULLP (s); s = SCM_CDR (s)) + arr[k++] = SCM_CAR (s); + + assert (k == len); + qsort (arr, len, sizeof (SCM), &scm_default_compare); + + SCM *tail = &lst; + for (int i = 0; i < len; i++) + if (!i || arr[i] != arr[i - 1]) + { + SCM_SETCAR (*tail, arr[i]); + tail = SCM_CDRLOC (*tail); + } + + *tail = SCM_EOL; + delete[] arr; + + return lst; +} + + +/* tail add */ +SCM +ly_snoc (SCM s, SCM list) +{ + return ly_append2 (list, scm_list_n (s, SCM_UNDEFINED)); +} + +/* Split list at member s, removing s. + Return (BEFORE . AFTER) */ +SCM +ly_split_list (SCM s, SCM list) +{ + SCM before = SCM_EOL; + SCM after = list; + for (; ly_c_pair_p (after);) + { + SCM i = ly_car (after); + after = ly_cdr (after); + if (ly_c_equal_p (i, s)) + break; + before = scm_cons (i, before); + } + return scm_cons ( scm_reverse_x (before, SCM_EOL), after); + +} + + +void +taint (SCM *) +{ + /* + nop. + */ +} + +/* + display stuff without using stack + */ +SCM +display_list (SCM s) +{ + SCM p = scm_current_output_port (); + + scm_puts ("(", p); + for (; ly_c_pair_p (s); s =ly_cdr (s)) + { + scm_display (ly_car (s), p); + scm_puts (" ", p); + } + scm_puts (")", p); + return SCM_UNSPECIFIED; +} + +Slice +int_list_to_slice (SCM l) +{ + Slice s; + s.set_empty (); + for (; ly_c_pair_p (l); l = ly_cdr (l)) + if (ly_c_number_p (ly_car (l))) + s.add_point (ly_scm2int (ly_car (l))); + return s; +} + +/* Return I-th element, or last elt L. If I < 0, then we take the first + element. + + PRE: length (L) > 0 */ +SCM +robust_list_ref (int i, SCM l) +{ + while (i-- > 0 && ly_c_pair_p (ly_cdr (l))) + l = ly_cdr (l); + return ly_car (l); +} + +Real +robust_scm2double (SCM k, double x) +{ + if (ly_c_number_p (k)) + x = ly_scm2double (k); + return x; +} + +Interval +robust_scm2interval (SCM k, Drul_array v) +{ + Interval i; + i[LEFT]= v[LEFT]; + i[RIGHT]= v[RIGHT]; + if (is_number_pair (k)) + i = ly_scm2interval (k); + return i; +} + +Drul_array +robust_scm2drul (SCM k, Drul_array v) +{ + if (is_number_pair (k)) + v = ly_scm2interval (k); + return v; +} + +Offset +robust_scm2offset (SCM k, Offset o) +{ + if (is_number_pair (k)) + o = ly_scm2offset (k); + return o; +} + +int +robust_scm2int (SCM k, int o) +{ + if (scm_integer_p (k) == SCM_BOOL_T) + o = ly_scm2int (k); + return o; +} + +SCM +alist_to_hashq (SCM alist) +{ + int i = scm_ilength (alist); + if (i < 0) + return scm_make_vector (scm_int2num (0), SCM_EOL); + + SCM tab = scm_make_vector (scm_int2num (i), SCM_EOL); + for (SCM s = alist; ly_c_pair_p (s); s = ly_cdr (s)) + { + SCM pt = ly_cdar (s); + scm_hashq_set_x (tab, ly_caar (s), pt); + } + return tab; +} + +#if 1 +/* + Debugging mem leaks: + */ +LY_DEFINE (ly_protects, "ly:protects", + 0, 0, 0, (), + "Return hash of protected objects.") +{ + return scm_protects; } +#endif + -SCM my_gh_symbol2scm (const char* x) +#ifdef HAVE_PANGO_FC_FONT_MAP_ADD_DECODER_FIND_FUNC + +#include "pangofc-afm-decoder.hh" + +LY_DEFINE (ly_pango_add_afm_decoder, "ly:pango-add-afm-decoder", + 1, 0, 0, (SCM font_family), + "Add pango afm decoder for FONT-FAMILY.") { - return gh_symbol2scm (x); + SCM_ASSERT_TYPE (ly_c_string_p (font_family), font_family, SCM_ARG1, __FUNCTION__, "font_family"); + pango_fc_afm_add_decoder (ly_scm2newstr (font_family, 0)); + return SCM_UNSPECIFIED; } + +#endif