2 my-lily-lexer.cc -- implement My_lily_lexer
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
12 #include "lily-proto.hh"
13 #include "scm-hash.hh"
14 #include "interval.hh"
15 #include "lily-guile.hh"
18 #include "my-lily-lexer.hh"
20 #include "source-file.hh"
24 #include "ly-module.hh"
27 static Keyword_ent the_key_tab[] = {
28 {"acciaccatura", ACCIACCATURA},
30 {"addlyrics", ADDLYRICS},
31 {"addquote", ADDQUOTE},
33 {"alternative", ALTERNATIVE},
35 {"applycontext", APPLYCONTEXT},
36 {"applyoutput", APPLYOUTPUT},
37 {"appoggiatura", APPOGGIATURA},
38 {"autochange", AUTOCHANGE},
45 {"consists", CONSISTS},
46 {"consistsend", CONSISTSEND},
51 {"description", DESCRIPTION},
54 {"grobdescriptions", GROBDESCRIPTIONS},
58 {"lyricsto", LYRICSTO},
64 {"newlyrics", NEWLYRICS},
68 {"override", OVERRIDE},
70 {"partcombine", PARTCOMBINE},
73 {"relative", RELATIVE},
79 {"sequential", SEQUENTIAL},
81 {"simultaneous", SIMULTANEOUS},
87 {"transpose", TRANSPOSE},
88 {"transposition", TRANSPOSITION},
96 My_lily_lexer::My_lily_lexer (Sources *srcs)
98 keytable_ = new Keyword_table (the_key_tab);
100 chordmodifier_tab_ = scm_make_vector (scm_int2num (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::encoding () const
118 My_lily_lexer::add_scope (SCM module)
120 ly_reexport_module (scm_current_module ());
121 scm_set_current_module (module);
122 for (SCM s = scopes_; ly_c_pair_p (s); s = ly_cdr (s))
124 /* UGH. how to do this more neatly? */
126 = scm_list_3 (ly_symbol2scm ("module-use!"),
128 scm_list_2 (ly_symbol2scm ("module-public-interface"),
130 scm_primitive_eval (expr);
132 scopes_ = scm_cons (module, scopes_);
136 My_lily_lexer::remove_scope ()
138 SCM sc = ly_car (scopes_);
139 scopes_ = ly_cdr (scopes_);
140 scm_set_current_module (ly_car (scopes_));
147 My_lily_lexer::lookup_keyword (String s)
149 return keytable_->lookup (s.to_str0 ());
153 My_lily_lexer::lookup_identifier (String s)
155 SCM sym = ly_symbol2scm (s.to_str0());
156 for (SCM s = scopes_; ly_c_pair_p (s); s = ly_cdr (s))
158 SCM var = ly_module_lookup (ly_car (s), sym);
159 if (var != SCM_BOOL_F)
160 return scm_variable_ref (var);
163 return SCM_UNDEFINED;
167 My_lily_lexer::start_main_input ()
169 // yy_flex_debug = 1;
170 new_input (main_input_name_, sources_);
171 /* Do not allow \include in --safe-mode */
172 allow_includes_b_ = allow_includes_b_ && ! safe_global_b;
174 scm_module_define (ly_car (scopes_),
175 ly_symbol2scm ("input-file-name"),
176 scm_makfrom0str (main_input_name_.to_str0 ()));
180 My_lily_lexer::set_identifier (SCM name, SCM s)
182 assert (ly_c_string_p (name));
184 if (lookup_keyword (ly_scm2string (name)) >= 0)
186 warning (_f ("Identifier name is a keyword: `%s'", SCM_STRING_CHARS (name)));
189 SCM sym = scm_string_to_symbol (name);
190 SCM mod = ly_car (scopes_);
192 scm_module_define (mod, sym, s);
195 My_lily_lexer::~My_lily_lexer ()
203 My_lily_lexer::LexerError (char const *s)
205 if (include_stack_.is_empty ())
206 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 ();
247 My_lily_lexer::set_encoding (String s)
250 encoding_ = ly_symbol2scm (s.to_str0 ());