/*
- scm-option.cc -- implement option setting from Scheme
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 2007--2014 Han-Wen Nienhuys <hanwen@lilypond.org>
- (c) 2001--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-*/
-
-#include "program-option.hh"
-#include <cstdio>
-#include <string.h>
+ LilyPond is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
-#include "string-convert.hh"
-#include "protected-scm.hh"
-#include "parse-scm.hh"
-#include "warn.hh"
-#include "main.hh"
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-/* Write midi as formatted ascii stream? */
-bool do_midi_debugging_global;
-bool use_object_keys;
-
-/*
- Backwards compatibility.
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
*/
-bool lily_1_8_relative = false;
-bool lily_1_8_compatibility_used = false;
-bool profile_property_accesses = false;
-/*
- crash if internally the wrong type is used for a grob property.
-*/
-bool do_internal_type_checking_global;
-
-Protected_scm option_hash_;
-
-void internal_set_option (SCM var, SCM val)
-{
- scm_hashq_set_x (option_hash_, var, val);
-
- if (0)
- ;
- else if (var == ly_symbol2scm ("profile-property-accesses"))
- {
- profile_property_accesses = to_boolean (val);
- val = scm_from_bool (to_boolean (val));
- }
- else if (var == ly_symbol2scm ("midi-debug"))
- {
- do_midi_debugging_global = to_boolean (val);
- val = scm_from_bool (to_boolean (val));
- }
- else if (var == ly_symbol2scm ("point-and-click"))
- {
- point_and_click_global = to_boolean (val);
- val = scm_from_bool (to_boolean (val));
- }
- else if (var == ly_symbol2scm ("parse-protect"))
- {
- parse_protect_global = to_boolean (val);
- val = scm_from_bool (to_boolean (val));
- }
- else if (var == ly_symbol2scm ("internal-type-checking"))
- {
- do_internal_type_checking_global = to_boolean (val);
- val = scm_from_bool (to_boolean (val));
- }
- else if (var == ly_symbol2scm ("old-relative"))
- {
- lily_1_8_relative = to_boolean (val);
- /* Needs to be reset for each file that uses this option. */
- lily_1_8_compatibility_used = to_boolean (val);
- val = scm_from_bool (to_boolean (val));
- }
- else if (var == ly_symbol2scm ("object-keys"))
- {
- use_object_keys = to_boolean (val);
- val = scm_from_bool (to_boolean (val));
- }
-}
-
-const int HELP_INDENT = 30;
-const int INDENT = 2;
-const int SEPARATION = 5;
-
-/*
- Hmmm. should do in SCM / C++ ?
-*/
-static String
-get_help_string ()
-{
- SCM alist = ly_hash2alist (option_hash_);
- SCM convertor = ly_lily_module_constant ("scm->string");
-
- Array<String> opts;
-
- for (SCM s = alist; scm_is_pair (s); s = scm_cdr (s))
- {
- SCM sym = scm_caar (s);
- SCM val = scm_cdar (s);
- String opt_spec
- = String_convert::char_string (' ', INDENT)
- + ly_symbol2string (sym)
- + " ("
- + ly_scm2string (scm_call_1 (convertor, val))
- + ")";
- if (opt_spec.length () + SEPARATION > HELP_INDENT)
- {
- opt_spec += "\n"
- + String_convert::char_string (' ', HELP_INDENT);
- }
- else
- opt_spec += String_convert::char_string (' ', HELP_INDENT - opt_spec.length ());
-
- SCM opt_help_scm
- = scm_object_property (sym, ly_symbol2scm ("program-option-documentation"));
- String opt_help = ly_scm2string (opt_help_scm);
- opt_help.substitute (String ("\n"),
- String ("\n")
- + String_convert::char_string (' ', HELP_INDENT));
-
- opts.push (opt_spec + opt_help + "\n");
- }
-
- String help ("Options supported by ly:set-option\n\n");
- opts.sort (String::compare);
- for (int i = 0; i < opts.size (); i++)
- help += opts[i];
-
- help += String ("\n");
- return help;
-}
+#include "program-option.hh"
-LY_DEFINE (ly_option_usage, "ly:option-usage", 0, 0, 0, (),
- "Print ly:set-option usage")
+string
+get_output_backend_name ()
{
- String help = get_help_string ();
- fputs (help.to_str0 (), stdout);
-
- exit (0);
- return SCM_UNSPECIFIED;
+ return ly_symbol2string (ly_get_option (ly_symbol2scm ("backend")));
}
-LY_DEFINE (ly_add_option, "ly:add-option", 3, 0, 0,
- (SCM sym, SCM val, SCM description),
- "Add a program option @var{sym} with default @var{val}.")
+bool
+get_program_option (const char *s)
{
- if (scm_hash_table_p (option_hash_) == SCM_BOOL_F)
- option_hash_ = scm_c_make_hash_table (11);
-
- SCM_ASSERT_TYPE (scm_is_symbol (sym), sym, SCM_ARG1, __FUNCTION__, "symbol");
- SCM_ASSERT_TYPE (scm_is_string (description), description,
- SCM_ARG3, __FUNCTION__, "string");
-
- internal_set_option (sym, val);
+ SCM sym = ly_symbol2scm (s);
- scm_set_object_property_x (sym, ly_symbol2scm ("program-option-documentation"),
- description);
-
- return SCM_UNSPECIFIED;
+ return to_boolean (ly_get_option (sym));
}
-LY_DEFINE (ly_set_option, "ly:set-option", 1, 1, 0, (SCM var, SCM val),
- "Set a program option. Try setting 'help for a help string.")
-{
- SCM_ASSERT_TYPE (scm_is_symbol (var), var, SCM_ARG1,
- __FUNCTION__, "symbol");
-
- if (ly_symbol2scm ("help") == var)
- {
- ly_option_usage ();
- }
-
- if (val == SCM_UNDEFINED)
- val = SCM_BOOL_T;
-
- String varstr = ly_scm2string (scm_symbol_to_string (var));
- if (varstr.left_string (3) == String ("no-"))
- {
- var = ly_symbol2scm (varstr.nomid_string (0, 3).to_str0 ());
- val = scm_from_bool (!to_boolean (val));
- }
-
- SCM handle = scm_hashq_get_handle (option_hash_, var);
- if (handle == SCM_BOOL_F)
- {
- warning (_f ("no such internal option: %s", varstr.to_str0 ()));
- }
-
- internal_set_option (var, val);
- return SCM_UNSPECIFIED;
-}
-
-LY_DEFINE (ly_get_option, "ly:get-option", 1, 0, 0, (SCM var),
- "Get a global option setting.")
-{
- SCM_ASSERT_TYPE (scm_is_symbol (var), var,
- SCM_ARG1, __FUNCTION__, "symbol");
- return scm_hashq_ref (option_hash_, var, SCM_BOOL_F);
-}
projects / lilypond.git / blobdiff