/*
- lily-guile.cc -- implement assorted guile functions
+ lily-guile.cc -- implement assorted SCM interface functions
source file of the GNU LilyPond music typesetter
- (c) 1998--2003 Jan Nieuwenhuizen <janneke@gnu.org>
-
- Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1998--2008 Jan Nieuwenhuizen <janneke@gnu.org>
+ Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
+#include "lily-guile.hh"
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h> /* isinf */
-#include <string.h> /* strdup, strchr */
-
-
-#include "lily-proto.hh"
-
-/* macosx fix:
-
-
- source-file.hh includes cmath which undefines isinf and isnan
-*/
-inline int my_isinf(Real r) { return isinf(r); }
-inline int my_isnan(Real r) { return isnan(r); }
-
+#include <cstdio>
+#include <cstdlib>
+#include <cstring> /* strdup, strchr */
+#include <cctype>
+using namespace std;
+#include "dimensions.hh"
+#include "direction.hh"
+#include "file-path.hh"
+#include "international.hh"
#include "libc-extension.hh"
-#include "lily-guile.hh"
#include "main.hh"
-#include "file-path.hh"
-#include "warn.hh"
-#include "direction.hh"
+#include "misc.hh"
#include "offset.hh"
-#include "interval.hh"
#include "pitch.hh"
-#include "dimensions.hh"
+#include "string-convert.hh"
#include "source-file.hh"
-
-// #define TEST_GC
-
-SCM
-ly_last (SCM list)
-{
- return ly_car (scm_last_pair (list));
-}
+#include "version.hh"
+#include "warn.hh"
-SCM
-ly_write2scm (SCM s)
+/*
+ symbols/strings.
+ */
+string
+ly_scm_write_string (SCM s)
{
- SCM port = scm_mkstrport (SCM_INUM0,
+ SCM port = scm_mkstrport (SCM_INUM0,
scm_make_string (SCM_INUM0, SCM_UNDEFINED),
SCM_OPN | SCM_WRTNG,
"ly_write2string");
// SCM write = scm_eval_3 (ly_symbol2scm ("write"), s, SCM_EOL);
SCM write = scm_primitive_eval (ly_symbol2scm ("write"));
-
+
// scm_apply (write, port, SCM_EOL);
- gh_call2 (write, s, port);
- return scm_strport_to_string (port);
+ scm_call_2 (write, s, port);
+ return ly_scm2string (scm_strport_to_string (port));
}
-
SCM
ly_quote_scm (SCM s)
{
return scm_list_n (ly_symbol2scm ("quote"), s, SCM_UNDEFINED);
}
-String
+string
ly_symbol2string (SCM s)
{
- assert (gh_symbol_p (s));
- return String ((Byte*)SCM_STRING_CHARS (s), (int) SCM_STRING_LENGTH (s));
+ /*
+ Ugh. this is not very efficient.
+ */
+ SCM str = scm_symbol_to_string (s);
+ return ly_scm2string (str);
}
-String
-gulp_file_to_string (String fn)
+string
+gulp_file_to_string (string fn, bool must_exist, int size)
{
- String s = global_path.find (fn);
+ string s = global_path.find (fn);
if (s == "")
{
- String e = _f ("can't find file: `%s'", fn);
- e += " ";
- e += _f ("(load path: `%s')", global_path.to_string ());
- error (e);
+ if (must_exist)
+ {
+ string e = _f ("cannot find file: `%s'", fn);
+ e += " ";
+ e += _f ("(load path: `%s')", global_path.to_string ());
+ error (e);
+ /* unreachable */
+ }
+ return s;
}
- else if (verbose_global_b)
+
+ if (be_verbose_global)
progress_indication ("[" + s);
- int n;
- char * str = gulp_file (s, &n);
- String result (str);
- delete[] str;
-
- if (verbose_global_b)
+ vector<char> chars = gulp_file (s, size);
+ string result (&chars[0], chars.size ());
+
+ if (be_verbose_global)
progress_indication ("]");
return result;
}
-LY_DEFINE(ly_gulp_file, "ly:gulp-file", 1,0, 0,
- (SCM name),
- "Read the file named @var{name}, and return its contents in a string. The "
-" file is looked up using the lilypond search path.")
-{
- return scm_makfrom0str (gulp_file_to_string (ly_scm2string (name)).to_str0 ());
-}
-
-
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 ();
-}
+ void
+ ly_display_scm (SCM s)
+ {
+ scm_display (s, scm_current_output_port ());
+ scm_newline (scm_current_output_port ());
+ }
};
-String
-ly_scm2string (SCM s)
+/*
+ STRINGS
+ */
+string
+ly_scm2string (SCM str)
+{
+ assert (scm_is_string (str));
+ string result;
+ size_t len = scm_c_string_length (str);
+ if (len) {
+ result.resize(len);
+ scm_to_locale_stringbuf(str, &result.at(0), len);
+ }
+ return result;
+}
+
+SCM
+ly_string2scm (string const &str)
{
- assert (gh_string_p (s));
+ return scm_from_locale_stringn (str.c_str (),
+ str.length ());
+}
- char *p = SCM_STRING_CHARS(s);
- String r (p);
- return r;
+
+char *
+ly_scm2newstr (SCM str, size_t *lenp)
+{
+ char* p = scm_to_locale_stringn(str, lenp);
+ return p;
}
-SCM
+/*
+ PAIRS
+*/
+SCM
index_get_cell (SCM s, Direction d)
{
-
assert (d);
- return (d == LEFT) ? ly_car (s) : ly_cdr (s);
+ return (d == LEFT) ? scm_car (s) : scm_cdr (s);
}
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;
}
-
-LY_DEFINE(ly_warning,"ly:warn", 1, 0, 0,
- (SCM str),"Scheme callable function to issue the warning @code{msg}.")
-{
- SCM_ASSERT_TYPE (gh_string_p (str), str, SCM_ARG1, __FUNCTION__, "string");
- warning ("lily-guile: " + ly_scm2string (str));
- return SCM_BOOL_T;
-}
-
-LY_DEFINE(ly_isdir, "ly:dir?", 1,0, 0, (SCM s),
- "type predicate. A direction is a -1, 0 or 1, where -1 represents left or "
-"down and 1 represents right or up. ")
-{
- if (gh_number_p (s))
- {
- int i = gh_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));
-}
-
-typedef void (*Void_fptr) ();
-Array<Void_fptr> *scm_init_funcs_;
-
-void add_scm_init_func (void (*f) ())
-{
- if (!scm_init_funcs_)
- scm_init_funcs_ = new Array<Void_fptr>;
-
- scm_init_funcs_->push (f);
-}
-
-
-void
-ly_init_ly_module (void *data)
+is_number_pair (SCM p)
{
- for (int i=scm_init_funcs_->size () ; i--;)
- (scm_init_funcs_->elem (i)) ();
-
- if (verbose_global_b)
- progress_indication ("\n");
-
- scm_primitive_load_path (scm_makfrom0str ("lily.scm"));
+ return scm_is_pair (p)
+ && scm_is_number (scm_car (p)) && scm_is_number (scm_cdr (p));
}
-SCM lily_module ;
-
-void
-ly_init_guile ()
-{
- lily_module = scm_c_define_module ("lily", ly_init_ly_module, 0);
- scm_c_use_module ("lily");
-}
-
-unsigned int ly_scm_hash (SCM s)
+unsigned int
+ly_scm_hash (SCM s)
{
return scm_ihashv (s, ~1u);
}
-
-
bool
-ly_dir_p (SCM s)
+is_axis (SCM s)
{
- if (gh_number_p (s))
+ if (scm_is_number (s))
{
- int i = gh_scm2int (s);
- return i>= -1 && i <= 1;
+ int i = scm_to_int (s);
+ return i == 0 || i == 1;
}
return false;
}
-
bool
-ly_axis_p (SCM s)
+to_boolean (SCM s)
{
- if (gh_number_p (s))
- {
- int i = gh_scm2int (s);
- return i== 0 || i == 1;
- }
- return false;
+ return scm_is_bool (s) && ly_scm2bool (s);
}
-
+/*
+ DIRECTIONS
+ */
Direction
to_dir (SCM s)
{
- return SCM_INUMP (s) ? (Direction) gh_scm2int (s) : CENTER;
+ return scm_is_integer (s) ? (Direction) scm_to_int (s) : CENTER;
}
-Interval
-ly_scm2interval (SCM p)
-{
- return Interval (gh_scm2double (ly_car (p)),
- gh_scm2double (ly_cdr (p)));
-}
-
-SCM
-ly_interval2scm (Drul_array<Real> i)
+Direction
+robust_scm2dir (SCM d, Direction def)
{
- return gh_cons (gh_double2scm (i[LEFT]),
- gh_double2scm (i[RIGHT]));
+ if (is_direction (d))
+ def = to_dir (d);
+ return def;
}
-
-
-
bool
-to_boolean (SCM s)
+is_direction (SCM s)
{
- return gh_boolean_p (s) && gh_scm2bool (s);
+ if (scm_is_number (s))
+ {
+ int i = scm_to_int (s);
+ return i >= -1 && i <= 1;
+ }
+ return false;
}
/*
- Appendable list L: the cdr contains the list, the car the last cons
- in the list.
+ INTERVALS
*/
-SCM
-appendable_list ()
+Interval
+ly_scm2interval (SCM p)
{
- SCM s = gh_cons (SCM_EOL, SCM_EOL);
- gh_set_car_x (s, s);
-
- return s;
+ return Interval (scm_to_double (scm_car (p)), scm_to_double (scm_cdr (p)));
}
-void
-appendable_list_append (SCM l, SCM elt)
+Drul_array<Real>
+ly_scm2realdrul (SCM p)
{
- SCM newcons = gh_cons (elt, SCM_EOL);
-
- gh_set_cdr_x (ly_car (l), newcons);
- gh_set_car_x (l, newcons);
+ return Drul_array<Real> (scm_to_double (scm_car (p)),
+ scm_to_double (scm_cdr (p)));
}
-
SCM
-ly_offset2scm (Offset o)
+ly_interval2scm (Drul_array<Real> i)
{
- return gh_cons (gh_double2scm (o[X_AXIS]), gh_double2scm (o[Y_AXIS]));
+ return scm_cons (scm_from_double (i[LEFT]), scm_from_double (i[RIGHT]));
}
-Offset
-ly_scm2offset (SCM s)
-{
- return Offset (gh_scm2double (ly_car (s)),
- gh_scm2double (ly_cdr (s)));
-}
-
-LY_DEFINE(ly_number2string, "ly:number->string", 1, 0,0,
- (SCM s),
- " converts @var{num} to a string without generating many decimals. It "
-"leaves a space at the end.")
+Interval
+robust_scm2interval (SCM k, Drul_array<Real> v)
{
- SCM_ASSERT_TYPE (gh_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));
-
- 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);
- }
- else
- {
- sprintf (str, "%d ", gh_scm2int (s));
- }
-
- return scm_makfrom0str (str);
+ Interval i;
+ i[LEFT] = v[LEFT];
+ i[RIGHT] = v[RIGHT];
+ if (is_number_pair (k))
+ i = ly_scm2interval (k);
+ return i;
}
-/*
- Undef this to see if GUILE GC is causing too many swaps.
- */
-
-//#define TEST_GC
-
-#ifdef TEST_GC
-#include <libguile/gc.h>
-
-static void *
-greet_sweep (void *dummy1, void *dummy2, void *dummy3)
+Drul_array<Real>
+robust_scm2drul (SCM k, Drul_array<Real> v)
{
- fprintf (stderr, "entering sweep\n");
+ if (is_number_pair (k))
+ v = ly_scm2interval (k);
+ return v;
}
-static void *
-wave_sweep_goodbye (void *dummy1, void *dummy2, void *dummy3)
+Drul_array<bool>
+robust_scm2booldrul (SCM k, Drul_array<bool> def)
{
- fprintf (stderr, "leaving sweep\n");
-}
-#endif
-
-
-#include "version.hh"
-LY_DEFINE(ly_version, "ly:version", 0, 0, 0, (),
- "Return the current lilypond version as a list, e.g. @code{(1 3 127 uu1)}. ")
-{
- char const* vs = "\' (" MAJOR_VERSION " " MINOR_VERSION " " PATCH_LEVEL " " MY_PATCH_LEVEL ")" ;
-
- return gh_eval_str ((char*)vs);
+ if (scm_is_pair (k))
+ {
+ def[LEFT] = to_boolean (scm_car (k));
+ def[RIGHT] = to_boolean (scm_cdr (k));
+ }
+ return def;
}
-LY_DEFINE(ly_unit, "ly:unit", 0, 0, 0, (),
- "Return the unit used for lengths as a string.")
+/*
+ OFFSET
+*/
+SCM
+ly_offset2scm (Offset o)
{
- return scm_makfrom0str (INTERNAL_UNIT);
+ return scm_cons (scm_from_double (o[X_AXIS]), scm_from_double (o[Y_AXIS]));
}
-LY_DEFINE(ly_verbose, "ly:verbose", 0, 0, 0, (),
- "Return whether lilypond is being run in verbose mode.")
+Offset
+ly_scm2offset (SCM s)
{
- return gh_bool2scm (verbose_global_b);
+ return Offset (scm_to_double (scm_car (s)),
+ scm_to_double (scm_cdr (s)));
}
-static void
-init_functions ()
+Offset
+robust_scm2offset (SCM k, Offset o)
{
-#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
+ if (is_number_pair (k))
+ o = ly_scm2offset (k);
+ return o;
}
-
-ADD_SCM_INIT_FUNC (funcs, init_functions);
-
SCM
-ly_deep_copy (SCM src)
+ly_offsets2scm (vector<Offset> os)
{
- if (gh_pair_p (src))
+ SCM l = SCM_EOL;
+ SCM *tail = &l;
+ for (vsize i = 0; i < os.size (); i++)
{
- return gh_cons (ly_deep_copy (ly_car (src)), ly_deep_copy (ly_cdr (src)));
- }
- else if (gh_vector_p (src))
- {
- int l = SCM_VECTOR_LENGTH (src);
- SCM nv = scm_c_make_vector (l, SCM_UNDEFINED);
- for (int i =0 ; i< l ; i++)
- {
- SCM si = gh_int2scm (i);
- scm_vector_set_x (nv, si, ly_deep_copy (scm_vector_ref (src, si)));
- }
+ *tail = scm_cons (ly_offset2scm (os[i]), SCM_EOL);
+ tail = SCM_CDRLOC (*tail);
}
- else
- return src;
-
- return src;
+ return l;
}
-
-
-
-SCM
-ly_assoc_chain (SCM key, SCM achain)
+vector<Offset>
+ly_scm2offsets (SCM s)
{
- if (gh_pair_p (achain))
- {
- SCM handle = scm_assoc (key, ly_car (achain));
- if (gh_pair_p (handle))
- return handle;
- else
- return ly_assoc_chain (key, ly_cdr (achain));
- }
- else
- return SCM_BOOL_F;
+ vector<Offset> os;
+ for (; scm_is_pair (s); s = scm_cdr (s))
+ os.push_back (ly_scm2offset (scm_car (s)));
+ return os;
}
-/* 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))
+/*
+ ALIST
+*/
+bool
+alist_equal_p (SCM a, SCM b)
+{
+ for (SCM s = a;
+ scm_is_pair (s); s = scm_cdr (s))
+ {
+ SCM key = scm_caar (s);
+ SCM val = scm_cdar (s);
+ SCM l = scm_assoc (key, b);
+ if (l == SCM_BOOL_F
+ || !ly_is_equal (scm_cdr (l), val))
-*/
-SCM
-ly_assoc_cdr (SCM key, SCM alist)
-{
- if (gh_pair_p (alist)) {
- SCM trykey = ly_caar(alist);
- if(gh_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));
- }
- else
- return SCM_BOOL_F;
+ return false;
+ }
+ return true;
}
-/*
- LIST 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)
+ly_alist_vals (SCM alist)
{
- char * s = strdup (list);
- char *orig = s;
- SCM create_list = SCM_EOL;
-
- for (char * p = s; *p; p++)
- {
- if (*p == '\n')
- *p = ' ' ;
- }
-
- if (!s[0] )
- s = 0;
-
+ SCM x = SCM_EOL;
+ for (SCM p = alist; scm_is_pair (p); p = scm_cdr (p))
+ x = scm_cons (scm_cdar (p), x);
+ return x;
+}
-
- while (s)
- {
- char *next = strchr (s, ' ');
- if (next)
- *next++ = 0;
+/*
+ LISTS
+ */
- create_list = gh_cons (ly_symbol2scm (s), create_list);
- s = next;
- }
+/* Return I-th element, or last elt L. If I < 0, then we take the first
+ element.
- free (orig);
- return create_list;
+ PRE: length (L) > 0 */
+SCM
+robust_list_ref (int i, SCM l)
+{
+ while (i-- > 0 && scm_is_pair (scm_cdr (l)))
+ l = scm_cdr (l);
+ return scm_car (l);
}
SCM
-ly_truncate_list (int k, SCM l )
+ly_deep_copy (SCM src)
{
- if (k == 0)
- {
- l = SCM_EOL;
- }
- else
+ if (scm_is_pair (src))
+ return scm_cons (ly_deep_copy (scm_car (src)), ly_deep_copy (scm_cdr (src)));
+ else if (scm_is_vector (src))
{
- SCM s = l;
- k--;
- for (; gh_pair_p (s) && k--; s = ly_cdr (s))
- ;
-
- if (gh_pair_p (s))
+ int len = scm_c_vector_length (src);
+ SCM nv = scm_c_make_vector (len, SCM_UNDEFINED);
+ for (int i = 0;i < len; i++)
{
- gh_set_cdr_x (s, SCM_EOL);
+ SCM si = scm_from_int (i);
+ scm_vector_set_x (nv, si, ly_deep_copy (scm_vector_ref (src, si)));
}
}
- return l;
+ return src;
}
-
-String
+string
print_scm_val (SCM val)
{
- String realval = ly_scm2string (ly_write2scm (val));
+ string realval = ly_scm_write_string (val);
if (realval.length () > 200)
- realval = realval.left_string (100) + "\n :\n :\n" + realval.right_string (100);
-
- return realval;
+ realval = realval.substr (0, 100)
+ + "\n :\n :\n"
+ + realval.substr (realval.length () - 100);
+ return realval;
}
bool
-type_check_assignment (SCM sym, SCM val, SCM type_symbol)
+type_check_assignment (SCM sym, SCM val, SCM type_symbol)
{
bool ok = true;
TODO: should remove #f from allowed vals?
- */
+ */
if (val == SCM_EOL || val == SCM_BOOL_F)
return ok;
-
- SCM type = SCM_EOL;
-
- if (gh_symbol_p (sym))
- type = scm_object_property (sym, type_symbol);
-
- if (type != SCM_EOL && !gh_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."));
- }
+ if (!scm_is_symbol (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_is_procedure (type))
+ {
+ warning (_f ("cannot find property type-check for `%s' (%s).",
+ ly_symbol2string (sym).c_str (),
+ ly_symbol2string (type_symbol).c_str ())
+ + " " + _ ("perhaps a typing error?"));
+
+ /* Be strict when being anal :) */
+ if (do_internal_type_checking_global)
+ scm_throw (ly_symbol2scm ("ly-file-failed"), scm_list_3 (ly_symbol2scm ("typecheck"),
+ sym, val));
+
+ warning (_ ("doing assignment anyway"));
+ }
else
{
if (val != SCM_EOL
- && gh_procedure_p (type)
- && gh_call1 (type, val) == SCM_BOOL_F)
+ && ly_is_procedure (type)
+ && scm_call_1 (type, val) == SCM_BOOL_F)
{
- SCM errport = scm_current_error_port ();
ok = false;
- SCM typefunc = scm_primitive_eval (ly_symbol2scm ("type-name"));
- SCM type_name = gh_call1 (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);
+ SCM typefunc = ly_lily_module_constant ("type-name");
+ SCM type_name = scm_call_1 (typefunc, type);
+
+ warning (_f ("type check for `%s' failed; value `%s' must be of type `%s'",
+ ly_symbol2string (sym).c_str (),
+ print_scm_val (val),
+ ly_scm2string (type_name).c_str ()));
+ progress_indication ("\n");
}
}
return ok;
}
-
/* some SCM abbrevs
- zijn deze nou handig?
- zijn ze er al in scheme, maar heten ze anders? */
-
+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; gh_pair_p (i); i = ly_cdr (i))
+ for (SCM i = list; scm_is_pair (i); i = scm_cdr (i))
{
- if (!gh_pair_p (ly_cdr (i))
- || !gh_equal_p (ly_car (i), ly_cadr (i)))
- unique = gh_cons (ly_car (i), unique);
+ if (!scm_is_pair (scm_cdr (i))
+ || !ly_is_equal (scm_car (i), scm_cadr (i)))
+ unique = scm_cons (scm_car (i), unique);
}
return scm_reverse_x (unique, SCM_EOL);
}
-/* tail add */
-SCM
-ly_snoc (SCM s, SCM list)
-{
- return gh_append2 (list, scm_list_n (s, SCM_UNDEFINED));
-}
-
/* Split list at member s, removing s.
- Return (BEFORE . AFTER) */
+ Return (BEFORE . AFTER) */
SCM
ly_split_list (SCM s, SCM list)
{
SCM before = SCM_EOL;
SCM after = list;
- for (; gh_pair_p (after);)
+ for (; scm_is_pair (after);)
{
- SCM i = ly_car (after);
- after = ly_cdr (after);
- if (gh_equal_p (i, s))
+ SCM i = scm_car (after);
+ after = scm_cdr (after);
+ if (ly_is_equal (i, s))
break;
- before = gh_cons (i, before);
+ before = scm_cons (i, before);
}
- return gh_cons ( scm_reverse_x (before, SCM_EOL), after);
-
+ 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 p = scm_current_output_port ();
scm_puts ("(", p);
- for (; gh_pair_p(s); s =gh_cdr(s))
+ for (; scm_is_pair (s); s = scm_cdr (s))
{
- scm_display (gh_car(s), p);
- scm_puts (" ", p);
+ scm_display (scm_car (s), p);
+ scm_puts (" ", p);
}
scm_puts (")", p);
return SCM_UNSPECIFIED;
{
Slice s;
s.set_empty ();
- for (; gh_pair_p (l); l = gh_cdr (l))
- {
- if (gh_number_p (gh_car (l)))
- s.add_point (gh_scm2int (gh_car (l)));
- }
+ for (; scm_is_pair (l); l = scm_cdr (l))
+ if (scm_is_number (scm_car (l)))
+ s.add_point (scm_to_int (scm_car (l)));
+ return s;
+}
+
+Real
+robust_scm2double (SCM k, double x)
+{
+ if (scm_is_number (k))
+ x = scm_to_double (k);
+ return x;
+}
+
+string
+robust_scm2string (SCM k, string s)
+{
+ if (scm_is_string (k))
+ s = ly_scm2string (k);
return s;
}
+int
+robust_scm2int (SCM k, int o)
+{
+ if (scm_integer_p (k) == SCM_BOOL_T)
+ o = scm_to_int (k);
+ return o;
+}
+SCM
+ly_rational2scm (Rational r)
+{
+ return scm_divide (scm_from_int64 (r.numerator ()),
+ scm_from_int64 (r.denominator ()));
+}
-/*
- Return I-th element, or last elt L. If I < 0, then we take the first
- element.
- PRE: length (L) > 0
+Rational
+ly_scm2rational (SCM r)
+{
+ return Rational (scm_to_int64 (scm_numerator (r)),
+ scm_to_int64 (scm_denominator (r)));
+}
+
+Rational
+robust_scm2rational (SCM n, Rational rat)
+{
+ if (ly_is_fraction (n))
+ return ly_scm2rational (n);
+ else
+ return rat;
+}
+
+SCM
+alist_to_hashq (SCM alist)
+{
+ int i = scm_ilength (alist);
+ if (i < 0)
+ return scm_c_make_hash_table (0);
+
+ SCM tab = scm_c_make_hash_table (i);
+ for (SCM s = alist; scm_is_pair (s); s = scm_cdr (s))
+ {
+ SCM pt = scm_cdar (s);
+ scm_hashq_set_x (tab, scm_caar (s), pt);
+ }
+ return tab;
+}
+
+SCM
+ly_hash2alist (SCM tab)
+{
+ SCM func = ly_lily_module_constant ("hash-table->alist");
+ return scm_call_1 (func, tab);
+}
+
+
+/*
+ C++ interfacing.
*/
+
+string
+mangle_cxx_identifier (string cxx_id)
+{
+ if (cxx_id.substr (0, 3) == "ly_")
+ cxx_id = cxx_id.replace (0, 3, "ly:");
+ else
+ {
+ cxx_id = String_convert::to_lower (cxx_id);
+ cxx_id = "ly:" + cxx_id;
+ }
+ if (cxx_id.substr (cxx_id.length () - 2) == "_p")
+ cxx_id = cxx_id.replace (cxx_id.length () - 2, 2, "?");
+ else if (cxx_id.substr (cxx_id.length () - 2) == "_x")
+ cxx_id = cxx_id.replace (cxx_id.length () - 2, 2, "!");
+
+ replace_all (&cxx_id, "_less?", "<?");
+ replace_all (&cxx_id, "_2_", "->");
+ replace_all (&cxx_id, "__", "::");
+ replace_all (&cxx_id, '_', '-');
+
+
+ return cxx_id;
+}
+
+
+
SCM
-robust_list_ref(int i, SCM l)
+ly_string_array_to_scm (vector<string> a)
{
- while (i-- > 0 && gh_pair_p (gh_cdr(l)))
- l = gh_cdr (l);
+ SCM s = SCM_EOL;
+ for (vsize i = a.size (); i ; i--)
+ s = scm_cons (ly_symbol2scm (a[i - 1].c_str ()), s);
+ return s;
+}
- return gh_car(l);
+/* SYMBOLS is a whitespace separated list. */
+SCM
+parse_symbol_list (char const *symbols)
+{
+ while (isspace (*symbols))
+ *symbols++;
+ string s = symbols;
+ replace_all (&s, '\n', ' ');
+ replace_all (&s, '\t', ' ');
+ replace_all (&s, " ", " ");
+ return ly_string_array_to_scm (string_split (s, ' '));
+}
+
+/* GDB debugging. */
+struct ly_t_double_cell
+{
+ SCM a;
+ SCM b;
+ SCM c;
+ SCM d;
+};
+
+/* inserts at front, removing duplicates */
+SCM ly_assoc_prepend_x (SCM alist, SCM key, SCM val)
+{
+ return scm_acons (key, val, scm_assoc_remove_x (alist, key));
}
projects / lilypond.git / blobdiff