lily/paper-outputter-scheme.cc

   1 /*
   2   paper-outputter-scheme.cc -- implement Paper_outputter bindings
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 2005--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
   7 */
   8
   9 #include "paper-outputter.hh"
  10
  11 #include "international.hh"
  12 #include "stencil.hh"
  13 #include "warn.hh"
  14
  15 LY_DEFINE (ly_make_paper_outputter, "ly:make-paper-outputter",
  16            2, 0, 0, (SCM port, SCM format),
  17            "Create an outputter that evaluates within"
  18            " @code{output-}@var{format}, writing to @var{port}.")
  19 {
  20   LY_ASSERT_TYPE (ly_is_port, port, 1);
  21   LY_ASSERT_TYPE (ly_is_symbol, format, 2);
  22
  23   string f = ly_symbol2string (format);
  24   string output_name = "<unknown>";
  25
  26   SCM port_name = scm_port_filename (port);
  27   if (scm_is_string (port_name))
  28     output_name = ly_scm2string (port_name);
  29
  30   message (_f ("Layout output to `%s'...",
  31                output_name.c_str ()));
  32
  33   progress_indication ("\n");
  34   Paper_outputter *po = new Paper_outputter (port, f);
  35
  36   po->unprotect ();
  37   return po->self_scm ();
  38 }
  39
  40 /* FIXME: why is output_* wrapper called dump?  */
  41 LY_DEFINE (ly_outputter_dump_stencil, "ly:outputter-dump-stencil",
  42            2, 0, 0, (SCM outputter, SCM stencil),
  43            "Dump stencil @var{expr} onto @var{outputter}.")
  44 {
  45
  46   LY_ASSERT_SMOB (Paper_outputter, outputter, 1);
  47   LY_ASSERT_SMOB (Stencil, stencil, 2);
  48
  49   Paper_outputter *po = unsmob_outputter (outputter);
  50   Stencil *st = unsmob_stencil (stencil);
  51
  52   po->output_stencil (*st);
  53   return SCM_UNSPECIFIED;
  54 }
  55
  56 LY_DEFINE (ly_outputter_dump_string, "ly:outputter-dump-string",
  57            2, 0, 0, (SCM outputter, SCM str),
  58            "Dump @var{str} onto @var{outputter}.")
  59 {
  60   LY_ASSERT_SMOB (Paper_outputter, outputter, 1);
  61   LY_ASSERT_TYPE (scm_is_string, str, 2);
  62
  63   Paper_outputter *po = unsmob_outputter (outputter);
  64
  65   return po->dump_string (str);
  66 }
  67
  68 LY_DEFINE (ly_outputter_port, "ly:outputter-port",
  69            1, 0, 0, (SCM outputter),
  70            "Return output port for @var{outputter}.")
  71 {
  72   LY_ASSERT_SMOB (Paper_outputter, outputter, 1);
  73   Paper_outputter *po = unsmob_outputter (outputter);
  74
  75   return po->file ();
  76 }
  77
  78 LY_DEFINE (ly_outputter_close, "ly:outputter-close",
  79            1, 0, 0, (SCM outputter),
  80            "Close port of @var{outputter}.")
  81 {
  82   LY_ASSERT_SMOB (Paper_outputter, outputter, 1);
  83   Paper_outputter *po = unsmob_outputter (outputter);
  84
  85   po->close ();
  86   return SCM_UNSPECIFIED;
  87 }
  88
  89 LY_DEFINE (ly_outputter_output_scheme, "ly:outputter-output-scheme",
  90            2, 0, 0, (SCM outputter, SCM expr),
  91            "Eval @var{expr} in module of @var{outputter}.")
  92 {
  93   LY_ASSERT_SMOB (Paper_outputter, outputter, 1);
  94   Paper_outputter *po = unsmob_outputter (outputter);
  95
  96   po->output_scheme (expr);
  97
  98   return SCM_UNSPECIFIED;
  99 }