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
[]={
29 {"acciaccatura", ACCIACCATURA
},
31 {"addlyrics", ADDLYRICS
},
33 {"alternative", ALTERNATIVE
},
35 {"applycontext", APPLYCONTEXT
},
36 {"applyoutput", APPLYOUTPUT
},
37 {"appoggiatura", APPOGGIATURA
},
38 {"autochange", AUTOCHANGE
},
41 {"chordmodifiers", CHORDMODIFIERS
},
44 {"consists", CONSISTS
},
45 {"consistsend", CONSISTSEND
},
49 {"description", DESCRIPTION
},
52 {"grobdescriptions", GROBDESCRIPTIONS
},
64 {"override", OVERRIDE
},
66 {"partcombine", PARTCOMBINE
},
68 {"pitchnames", PITCHNAMES
},
69 {"property", PROPERTY
},
70 {"relative", RELATIVE
},
76 {"sequential", SEQUENTIAL
},
78 {"simultaneous", SIMULTANEOUS
},
84 {"translator", TRANSLATOR
},
85 {"transpose", TRANSPOSE
},
92 My_lily_lexer::My_lily_lexer ()
96 keytable_
= new Keyword_table (the_key_tab
);
98 chordmodifier_tab_
= scm_make_vector (gh_int2scm (1), SCM_EOL
);
99 pitchname_tab_
= scm_make_vector (gh_int2scm (1), SCM_EOL
);
103 add_scope(ly_make_anonymous_module());
106 main_input_b_
= false;
110 My_lily_lexer::add_scope (SCM module
)
112 ly_reexport_module (scm_current_module());
113 scm_set_current_module (module
);
114 for (SCM s
= scopes_
; gh_pair_p (s
); s
= gh_cdr (s
))
117 UGH. how to do this more neatly?
119 SCM expr
= scm_list_n (ly_symbol2scm ("module-use!"),
120 module
, scm_list_n (ly_symbol2scm ("module-public-interface"),
121 gh_car (s
), SCM_UNDEFINED
),
124 scm_primitive_eval(expr
);
127 scopes_
= scm_cons (module
, scopes_
);
131 My_lily_lexer::remove_scope ()
133 SCM sc
= gh_car (scopes_
);
134 scopes_
= gh_cdr (scopes_
);
135 scm_set_current_module (gh_car (scopes_
));
142 My_lily_lexer::lookup_keyword (String s
)
144 return keytable_
->lookup (s
.to_str0 ());
148 My_lily_lexer::lookup_identifier (String s
)
150 SCM sym
= ly_symbol2scm (s
.to_str0());
151 for (SCM s
= scopes_
; gh_pair_p (s
); s
= gh_cdr (s
))
153 SCM var
= ly_module_lookup (gh_car (s
), sym
);
154 if (var
!= SCM_BOOL_F
)
155 return scm_variable_ref(var
);
158 return SCM_UNDEFINED
;
162 My_lily_lexer::start_main_input ()
164 new_input (main_input_string_
, &global_input_file
->sources_
);
165 allow_includes_b_
= allow_includes_b_
&& ! (safe_global_b
);
167 scm_module_define (gh_car (scopes_
),
168 ly_symbol2scm ("input-file-name"),
169 scm_makfrom0str (main_input_string_
.to_str0()));
173 My_lily_lexer::set_identifier (SCM name
, SCM s
)
175 assert (gh_string_p (name
));
177 if (lookup_keyword (ly_scm2string (name
)) >= 0)
180 char * str
= gh_scm2newstr (name
, &sz
) ;
181 warning (_f ("Identifier name is a keyword: `%s'", str
));
185 SCM sym
= scm_string_to_symbol (name
);
186 SCM mod
= gh_car (scopes_
);
188 scm_module_define (mod
, sym
, s
);
191 My_lily_lexer::~My_lily_lexer ()
199 My_lily_lexer::LexerError (char const *s
)
201 if (include_stack_
.empty ())
203 progress_indication (_f ("error at EOF: %s", s
)+ String ("\n"));
208 Input
spot (get_source_file (), here_str0 ());
214 My_lily_lexer::escaped_char (char c
) const
232 My_lily_lexer::here_input () const
234 Source_file
* f
= get_source_file ();
235 return Input (f
, (char*)here_str0 ());
239 My_lily_lexer::prepare_for_next_token ()
241 last_input_
= here_input();