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[] = {
29 {"addquote", ADDQUOTE},
31 {"alternative", ALTERNATIVE},
34 {"bookpaper", BOOKPAPER},
38 {"consists", CONSISTS},
43 {"description", DESCRIPTION},
45 {"grobdescriptions", GROBDESCRIPTIONS},
49 {"lyricsto", LYRICSTO},
55 {"newlyrics", NEWLYRICS},
59 {"override", OVERRIDE},
63 {"relative", RELATIVE},
69 {"sequential", SEQUENTIAL},
71 {"simultaneous", SIMULTANEOUS},
77 {"transpose", TRANSPOSE},
78 {"transposition", TRANSPOSITION},
86 My_lily_lexer::My_lily_lexer (Sources *sources)
88 keytable_ = new Keyword_table (the_key_tab);
90 chordmodifier_tab_ = scm_make_vector (scm_int2num (1), SCM_EOL);
91 pitchname_tab_stack_ = SCM_EOL;
95 main_input_b_ = false;
97 add_scope (ly_make_anonymous_module (false));
100 My_lily_lexer::My_lily_lexer (My_lily_lexer const &src)
101 : Includable_lexer ()
103 keytable_ = (src.keytable_) ? new Keyword_table (*src.keytable_) : 0;
104 encoding_ = src.encoding_;
105 chordmodifier_tab_ = src.chordmodifier_tab_;
106 pitchname_tab_stack_ = src.pitchname_tab_stack_;
107 sources_ = src.sources_;
109 error_level_ = src.error_level_;
110 main_input_b_ = src.main_input_b_;
112 SCM scopes = SCM_EOL;
114 for (SCM s = src.scopes_; ly_c_pair_p (s); s = ly_cdr (s))
116 SCM newmod = ly_make_anonymous_module (false);
117 ly_import_module (newmod, ly_car (s));
118 *tail = scm_cons (newmod, SCM_EOL);
119 tail = SCM_CDRLOC (*tail);
125 My_lily_lexer::~My_lily_lexer ()
131 My_lily_lexer::encoding () const
138 My_lily_lexer::add_scope (SCM module)
140 ly_reexport_module (scm_current_module ());
141 scm_set_current_module (module);
142 for (SCM s = scopes_; ly_c_pair_p (s); s = ly_cdr (s))
144 ly_use_module (module, ly_car (s));
146 scopes_ = scm_cons (module, scopes_);
150 My_lily_lexer::remove_scope ()
152 SCM sc = ly_car (scopes_);
153 scopes_ = ly_cdr (scopes_);
154 scm_set_current_module (ly_car (scopes_));
161 My_lily_lexer::lookup_keyword (String s)
163 return keytable_->lookup (s.to_str0 ());
167 My_lily_lexer::lookup_identifier_symbol (SCM sym)
169 for (SCM s = scopes_; ly_c_pair_p (s); s = ly_cdr (s))
171 SCM var = ly_module_lookup (ly_car (s), sym);
172 if (var != SCM_BOOL_F)
173 return scm_variable_ref (var);
176 return SCM_UNDEFINED;
180 My_lily_lexer::lookup_identifier (String name)
182 return lookup_identifier_symbol (ly_symbol2scm (name.to_str0 ()));
186 My_lily_lexer::start_main_input ()
188 // yy_flex_debug = 1;
189 new_input (main_input_name_, sources_);
191 /* Do not allow \include in --safe-mode */
192 allow_includes_b_ = allow_includes_b_ && !safe_global_b;
194 scm_module_define (ly_car (scopes_),
195 ly_symbol2scm ("input-file-name"),
196 scm_makfrom0str (main_input_name_.to_str0 ()));
200 My_lily_lexer::set_identifier (SCM name, SCM s)
203 if (ly_c_string_p (name))
204 sym = scm_string_to_symbol (name);
206 if (ly_c_symbol_p (sym))
208 if (lookup_keyword (ly_symbol2string (sym)) >= 0)
210 warning (_f ("Identifier name is a keyword: `%s'", SCM_SYMBOL_CHARS (sym)));
213 SCM mod = ly_car (scopes_);
215 scm_module_define (mod, sym, s);
219 programming_error ("Identifier is not a symbol.");
224 My_lily_lexer::LexerError (char const *s)
226 if (include_stack_.is_empty ())
227 progress_indication (_f ("error at EOF: %s", s) + String ("\n"));
231 Input spot (get_source_file (), here_str0 ());
237 My_lily_lexer::escaped_char (char c) const
254 My_lily_lexer::here_input () const
256 Source_file * f= get_source_file ();
257 return Input (f, (char*)here_str0 ());
261 My_lily_lexer::prepare_for_next_token ()
263 last_input_ = here_input ();
267 My_lily_lexer::set_encoding (String s)
270 encoding_ = ly_symbol2scm (s.to_str0 ());