2 my-lily-lexer.cc -- implement My_lily_lexer
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
12 #include "lily-proto.hh"
13 #include "scm-hash.hh"
14 #include "interval.hh"
15 #include "input-file-results.hh"
16 #include "lily-guile.hh"
19 #include "my-lily-lexer.hh"
21 #include "source-file.hh"
25 #include "ly-modules.hh"
28 static Keyword_ent the_key_tab
[]={
31 {"applycontext", APPLYCONTEXT
},
32 {"autochange", AUTOCHANGE
},
33 {"simultaneous", SIMULTANEOUS
},
34 {"sequential", SEQUENTIAL
},
36 {"alternative", ALTERNATIVE
},
39 {"chordmodifiers", CHORDMODIFIERS
},
40 {"chordnames", CHORDNAMES
},
43 {"consists", CONSISTS
},
44 {"consistsend", CONSISTSEND
},
48 {"duration", DURATION
},
49 {"grobdescriptions", GROBDESCRIPTIONS
},
63 {"pitchnames", PITCHNAMES
},
65 {"outputproperty", OUTPUTPROPERTY
},
66 {"override", OVERRIDE
},
72 {"property", PROPERTY
},
73 {"relative", RELATIVE
},
76 {"addlyrics", ADDLYRICS
},
77 {"partcombine", PARTCOMBINE
},
81 {"translator", TRANSLATOR
},
82 {"transpose", TRANSPOSE
},
89 My_lily_lexer::My_lily_lexer ()
91 keytable_
= new Keyword_table (the_key_tab
);
94 add_scope(ly_make_anonymous_module());
97 main_input_b_
= false;
101 My_lily_lexer::add_scope (SCM module
)
103 ly_reexport_module (scm_current_module());
104 scm_set_current_module (module
);
105 for (SCM s
= scopes_
; gh_pair_p (s
); s
= gh_cdr (s
))
108 UGH. how to do this more neatly?
110 SCM expr
= scm_list_n (ly_symbol2scm ("module-use!"),
111 module
, scm_list_n (ly_symbol2scm ("module-public-interface"),
112 gh_car (s
), SCM_UNDEFINED
),
115 scm_primitive_eval(expr
);
118 scopes_
= scm_cons (module
, scopes_
);
122 My_lily_lexer::remove_scope ()
124 SCM sc
= gh_car (scopes_
);
125 scopes_
= gh_cdr (scopes_
);
126 scm_set_current_module (gh_car (scopes_
));
133 My_lily_lexer::lookup_keyword (String s
)
135 return keytable_
->lookup (s
.to_str0 ());
139 My_lily_lexer::lookup_identifier (String s
)
141 SCM sym
= ly_symbol2scm (s
.to_str0());
142 for (SCM s
= scopes_
; gh_pair_p (s
); s
= gh_cdr (s
))
144 SCM var
= ly_module_lookup (gh_car (s
), sym
);
145 if (var
!= SCM_BOOL_F
)
146 return scm_variable_ref(var
);
149 return SCM_UNSPECIFIED
;
153 My_lily_lexer::start_main_input ()
155 new_input (main_input_string_
, &global_input_file
->sources_
);
156 allow_includes_b_
= allow_includes_b_
&& ! (safe_global_b
);
160 My_lily_lexer::set_identifier (SCM name
, SCM s
)
162 assert (gh_string_p (name
));
164 if (lookup_keyword (ly_scm2string (name
)) >= 0)
167 char * str
= gh_scm2newstr (name
, &sz
) ;
168 warning (_f ("Identifier name is a keyword: `%s'", str
));
172 SCM sym
= scm_string_to_symbol (name
);
173 SCM mod
= gh_car (scopes_
);
175 scm_module_define (mod
, sym
, s
);
178 My_lily_lexer::~My_lily_lexer ()
186 My_lily_lexer::LexerError (char const *s
)
188 if (include_stack_
.empty ())
190 progress_indication (_f ("error at EOF: %s", s
)+ String ("\n"));
195 Input
spot (get_source_file (), here_str0 ());
201 My_lily_lexer::escaped_char (char c
) const
219 My_lily_lexer::here_input () const
221 Source_file
* f
= get_source_file ();
222 return Input (f
, (char*)here_str0 ());
226 My_lily_lexer::prepare_for_next_token ()
228 last_input_
= here_input();
233 My_lily_lexer::scan_markup_word (String s
)
236 TODO: better implementation:
238 - make a table of markup functions, for quicker lookup
243 SCM s
= scm_c_eval_str ((s
+ "-markup").to_str0());