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},
44 {"consists", CONSISTS},
45 {"consistsend", CONSISTSEND},
50 {"description", DESCRIPTION},
53 {"grobdescriptions", GROBDESCRIPTIONS},
57 {"lyricsto", NEWADDLYRICS},
66 {"override", OVERRIDE},
68 {"partcombine", PARTCOMBINE},
70 {"property", PROPERTY},
71 {"relative", RELATIVE},
77 {"sequential", SEQUENTIAL},
79 {"simultaneous", SIMULTANEOUS},
85 {"translator", TRANSLATOR},
86 {"transpose", TRANSPOSE},
94 My_lily_lexer::My_lily_lexer ()
98 keytable_ = new Keyword_table (the_key_tab);
100 chordmodifier_tab_ = scm_make_vector (gh_int2scm (1), SCM_EOL);
101 pitchname_tab_stack_ = SCM_EOL;
105 add_scope(ly_make_anonymous_module());
108 main_input_b_ = false;
112 My_lily_lexer::add_scope (SCM module)
114 ly_reexport_module (scm_current_module ());
115 scm_set_current_module (module);
116 for (SCM s = scopes_; gh_pair_p (s); s = gh_cdr (s))
119 UGH. how to do this more neatly?
121 SCM expr = scm_list_n (ly_symbol2scm ("module-use!"),
122 module, scm_list_n (ly_symbol2scm ("module-public-interface"),
123 gh_car (s), SCM_UNDEFINED),
126 scm_primitive_eval(expr);
129 scopes_ = scm_cons (module, scopes_);
133 My_lily_lexer::remove_scope ()
135 SCM sc = gh_car (scopes_);
136 scopes_ = gh_cdr (scopes_);
137 scm_set_current_module (gh_car (scopes_));
144 My_lily_lexer::lookup_keyword (String s)
146 return keytable_->lookup (s.to_str0 ());
150 My_lily_lexer::lookup_identifier (String s)
152 SCM sym = ly_symbol2scm (s.to_str0());
153 for (SCM s = scopes_; gh_pair_p (s); s = gh_cdr (s))
155 SCM var = ly_module_lookup (gh_car (s), sym);
156 if (var != SCM_BOOL_F)
157 return scm_variable_ref(var);
160 return SCM_UNDEFINED;
164 My_lily_lexer::start_main_input ()
166 new_input (main_input_name_, &global_input_file->sources_);
167 allow_includes_b_ = allow_includes_b_ && ! safe_global_b;
169 scm_module_define (gh_car (scopes_),
170 ly_symbol2scm ("input-file-name"),
171 scm_makfrom0str (main_input_name_.to_str0 ()));
175 My_lily_lexer::set_identifier (SCM name, SCM s)
177 assert (gh_string_p (name));
179 if (lookup_keyword (ly_scm2string (name)) >= 0)
182 char * str = gh_scm2newstr (name, &sz) ;
183 warning (_f ("Identifier name is a keyword: `%s'", str));
187 SCM sym = scm_string_to_symbol (name);
188 SCM mod = gh_car (scopes_);
190 scm_module_define (mod, sym, s);
193 My_lily_lexer::~My_lily_lexer ()
201 My_lily_lexer::LexerError (char const *s)
203 if (include_stack_.empty ())
205 progress_indication (_f ("error at EOF: %s", s)+ String ("\n"));
210 Input spot (get_source_file (), here_str0 ());
216 My_lily_lexer::escaped_char (char c) const
234 My_lily_lexer::here_input () const
236 Source_file * f= get_source_file ();
237 return Input (f, (char*)here_str0 ());
241 My_lily_lexer::prepare_for_next_token ()
243 last_input_ = here_input();