2 program-option-scheme.cc -- implement option setting from Scheme
4 source file of the GNU LilyPond music typesetter
6 (c) 2001--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
9 #include "program-option.hh"
16 #include "international.hh"
18 #include "parse-scm.hh"
19 #include "string-convert.hh"
23 bool debug_property_callbacks
;
24 bool debug_page_breaking_scoring
;
27 Backwards compatibility.
29 bool lily_1_8_relative
= false;
30 bool lily_1_8_compatibility_used
= false;
31 bool profile_property_accesses
= false;
33 crash if internally the wrong type is used for a grob property.
35 bool do_internal_type_checking_global
;
36 bool strict_infinity_checking
= false;
38 static SCM option_hash
;
40 void internal_set_option (SCM var
, SCM val
)
44 else if (var
== ly_symbol2scm ("profile-property-accesses"))
46 profile_property_accesses
= to_boolean (val
);
47 val
= scm_from_bool (to_boolean (val
));
49 else if (var
== ly_symbol2scm ("point-and-click"))
51 point_and_click_global
= to_boolean (val
);
52 val
= scm_from_bool (to_boolean (val
));
54 else if (var
== ly_symbol2scm ("protected-scheme-parsing"))
56 parse_protect_global
= to_boolean (val
);
57 val
= scm_from_bool (to_boolean (val
));
59 else if (var
== ly_symbol2scm ("check-internal-types"))
61 do_internal_type_checking_global
= to_boolean (val
);
62 val
= scm_from_bool (to_boolean (val
));
64 else if (var
== ly_symbol2scm ("debug-gc-assert-parsed-dead"))
66 parsed_objects_should_be_dead
= to_boolean (val
);
67 val
= scm_from_bool (parsed_objects_should_be_dead
);
69 else if (var
== ly_symbol2scm ("safe"))
71 be_safe_global
= to_boolean (val
);
72 val
= scm_from_bool (be_safe_global
);
74 else if (var
== ly_symbol2scm ("old-relative"))
76 lily_1_8_relative
= to_boolean (val
);
77 /* Needs to be reset for each file that uses this option. */
78 lily_1_8_compatibility_used
= to_boolean (val
);
79 val
= scm_from_bool (to_boolean (val
));
81 else if (var
== ly_symbol2scm ("strict-infinity-checking"))
83 strict_infinity_checking
= to_boolean (val
);
84 val
= scm_from_bool (to_boolean (val
));
86 else if (var
== ly_symbol2scm ("debug-skylines"))
88 debug_skylines
= to_boolean (val
);
89 val
= scm_from_bool (to_boolean (val
));
91 else if (var
== ly_symbol2scm ("debug-property-callbacks"))
93 debug_property_callbacks
= to_boolean (val
);
94 val
= scm_from_bool (to_boolean (val
));
96 else if (var
== ly_symbol2scm ("debug-page-breaking-scoring"))
98 debug_page_breaking_scoring
= to_boolean (val
);
99 val
= scm_from_bool (to_boolean (val
));
101 else if (var
== ly_symbol2scm ("datadir"))
103 /* ignore input value. */
104 val
= ly_string2scm (lilypond_datadir
);
108 scm_hashq_set_x (option_hash
, var
, val
);
115 ssize
const HELP_INDENT
= 30;
116 ssize
const INDENT
= 2;
117 ssize
const SEPARATION
= 5;
120 Hmmm. should do in SCM / C++ ?
125 SCM alist
= ly_hash2alist (option_hash
);
126 SCM convertor
= ly_lily_module_constant ("scm->string");
130 for (SCM s
= alist
; scm_is_pair (s
); s
= scm_cdr (s
))
132 SCM sym
= scm_caar (s
);
133 SCM val
= scm_cdar (s
);
135 = String_convert::char_string (' ', INDENT
)
136 + ly_symbol2string (sym
)
138 + ly_scm2string (scm_call_1 (convertor
, val
))
141 if (opt_spec
.length () + SEPARATION
> HELP_INDENT
)
144 + String_convert::char_string (' ', HELP_INDENT
);
147 opt_spec
+= String_convert::char_string (' ', HELP_INDENT
- opt_spec
.length ());
150 = scm_object_property (sym
, ly_symbol2scm ("program-option-documentation"));
151 string opt_help
= ly_scm2string (opt_help_scm
);
152 replace_all (&opt_help
,
155 + String_convert::char_string (' ', HELP_INDENT
));
157 opts
.push_back (opt_spec
+ opt_help
+ "\n");
160 string
help ("Options supported by ly:set-option\n\n");
161 vector_sort (opts
, less
<string
> ());
162 for (vsize i
= 0; i
< opts
.size (); i
++)
165 help
+= string ("\n");
170 LY_DEFINE (ly_option_usage
, "ly:option-usage", 0, 0, 0, (),
171 "Print @code{ly:set-option} usage.")
173 string help
= get_help_string ();
174 progress_indication (help
);
176 return SCM_UNSPECIFIED
;
179 LY_DEFINE (ly_add_option
, "ly:add-option", 3, 0, 0,
180 (SCM sym
, SCM val
, SCM description
),
181 "Add a program option @var{sym} with default @var{val}.")
185 option_hash
= scm_permanent_object (scm_c_make_hash_table (11));
187 LY_ASSERT_TYPE (ly_is_symbol
, sym
, 1);
188 LY_ASSERT_TYPE (scm_is_string
, description
, 3);
190 internal_set_option (sym
, val
);
192 scm_set_object_property_x (sym
, ly_symbol2scm ("program-option-documentation"),
195 return SCM_UNSPECIFIED
;
198 LY_DEFINE (ly_set_option
, "ly:set-option", 1, 1, 0, (SCM var
, SCM val
),
199 "Set a program option.")
201 LY_ASSERT_TYPE (ly_is_symbol
, var
, 1);
203 if (val
== SCM_UNDEFINED
)
206 string varstr
= ly_scm2string (scm_symbol_to_string (var
));
207 if (varstr
.substr (0, 3) == string ("no-"))
209 var
= ly_symbol2scm (varstr
.substr (3, varstr
.length () -3).c_str ());
210 val
= scm_from_bool (!to_boolean (val
));
213 SCM handle
= scm_hashq_get_handle (option_hash
, var
);
214 if (handle
== SCM_BOOL_F
)
215 warning (_f ("no such internal option: %s", varstr
.c_str ()));
217 internal_set_option (var
, val
);
218 return SCM_UNSPECIFIED
;
221 LY_DEFINE (ly_command_line_options
, "ly:command-line-options", 0, 0, 0, (),
222 "The Scheme options specified on command-line with @option{-d}.")
224 return ly_string2scm (init_scheme_variables_global
);
227 LY_DEFINE (ly_command_line_code
, "ly:command-line-code", 0, 0, 0, (),
228 "The Scheme code specified on command-line with @option{-e}.")
230 return ly_string2scm (init_scheme_code_global
);
233 LY_DEFINE (ly_command_line_verbose_p
, "ly:command-line-verbose?", 0, 0, 0, (),
234 "Was @code{be_verbose_global} set?")
236 return scm_from_bool (be_verbose_global
);
241 LY_DEFINE (ly_all_options
, "ly:all-options",
243 "Get all option settings in an alist.")
245 return ly_hash2alist (option_hash
);
249 LY_DEFINE (ly_get_option
, "ly:get-option", 1, 0, 0, (SCM var
),
250 "Get a global option setting.")
252 LY_ASSERT_TYPE (ly_is_symbol
, var
, 1);
253 return scm_hashq_ref (option_hash
, var
, SCM_BOOL_F
);