-
-/****************************************************************/
-
-void
-interpret_stencil_expression (SCM expr,
- void (*func) (void*, SCM),
- void *func_arg,
- Offset o)
-{
- while (1)
- {
- if (!ly_c_pair_p (expr))
- return;
-
- SCM head =ly_car (expr);
- if (unsmob_input (head))
- {
- Input *ip = unsmob_input (head);
- (*func)(func_arg,
- scm_list_4 (ly_symbol2scm ("define-origin"),
- scm_makfrom0str (ip->file_string ()
- .to_str0 ()),
- scm_int2num (ip->line_number ()),
- scm_int2num (ip->column_number ())));
-
- expr = ly_cadr (expr);
- }
- else if (head == ly_symbol2scm ("no-origin"))
- {
- (*func) (func_arg, scm_list_1 (head));
- expr = ly_cadr (expr);
- }
- else if (head == ly_symbol2scm ("translate-stencil"))
- {
- o += ly_scm2offset (ly_cadr (expr));
- expr = ly_caddr (expr);
- }
- else if (head == ly_symbol2scm ("combine-stencil"))
- {
- interpret_stencil_expression (ly_cadr (expr), func, func_arg, o);
- expr = ly_caddr (expr);
- }
- else
- {
- (*func) (func_arg,
- scm_list_4 (ly_symbol2scm ("placebox"),
- scm_make_real (o[X_AXIS]),
- scm_make_real (o[Y_AXIS]),
- expr));
- return;
- }
- }
-}
-
-
-struct Font_list
-{
- SCM fonts_;
-};
-
-static void
-find_font_function (void * fs, SCM x)
-{
- Font_list * me = (Font_list*)fs;
-
- if (ly_car (x) == ly_symbol2scm ("placebox"))
- {
- SCM args = ly_cdr (x);
- SCM what = ly_caddr (args);
-
- if (ly_c_pair_p (what))
- {
- SCM head = ly_car (what);
- if (ly_symbol2scm ("text") == head)
- me->fonts_ = scm_cons (ly_cadr (what), me->fonts_);
- else if (head == ly_symbol2scm ("char"))
- me->fonts_ = scm_cons (ly_cadr (what), me->fonts_);
- }
- }
-}
-
-SCM
-find_expression_fonts (SCM expr)