2 my-lily-lexer.cc -- implement My_lily_lexer
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
13 #include "lily-proto.hh"
14 #include "scm-hash.hh"
15 #include "interval.hh"
16 #include "input-file-results.hh"
17 #include "lily-guile.hh"
20 #include "my-lily-lexer.hh"
22 #include "source-file.hh"
27 static Keyword_ent the_key_tab[]={
30 {"arpeggio", ARPEGGIO },
31 {"autochange", AUTOCHANGE},
32 {"spanrequest", SPANREQUEST},
33 {"commandspanrequest", COMMANDSPANREQUEST},
34 {"simultaneous", SIMULTANEOUS},
35 {"sequential", SEQUENTIAL},
37 {"alternative", ALTERNATIVE},
41 {"chordmodifiers", CHORDMODIFIERS},
45 {"consists", CONSISTS},
46 {"consistsend", CONSISTSEND},
50 {"duration", DURATION},
51 {"dynamicscript", DYNAMICSCRIPT},
52 {"grobdescriptions", GROBDESCRIPTIONS},
55 {"glissando", GLISSANDO},
68 {"pitchnames", PITCHNAMES},
70 {"outputproperty", OUTPUTPROPERTY},
71 {"override", OVERRIDE},
78 {"property", PROPERTY},
80 {"relative", RELATIVE},
83 {"addlyrics", ADDLYRICS},
84 {"partcombine", PARTCOMBINE},
87 {"stylesheet", STYLESHEET},
90 {"translator", TRANSLATOR},
91 {"transpose", TRANSPOSE},
97 My_lily_lexer::My_lily_lexer ()
99 keytable_ = new Keyword_table (the_key_tab);
100 toplevel_variable_tab_ = new Scheme_hash_table ;
101 scopes_.push (toplevel_variable_tab_);
104 main_input_b_ = false;
108 My_lily_lexer::lookup_keyword (String s)
110 return keytable_->lookup (s.to_str0 ());
114 My_lily_lexer::lookup_identifier (String s)
116 SCM sym = ly_symbol2scm (s.to_str0 ());
118 for (int i = scopes_.size (); i--;)
120 SCM val = SCM_UNSPECIFIED;
121 if (scopes_[i]->try_retrieve (sym, &val))
124 return SCM_UNSPECIFIED;
128 My_lily_lexer::start_main_input ()
130 new_input (main_input_string_, &global_input_file->sources_);
131 allow_includes_b_ = allow_includes_b_ && ! (safe_global_b);
135 My_lily_lexer::set_identifier (SCM name, SCM s)
137 assert (gh_string_p (name));
139 if (lookup_keyword (ly_scm2string (name)) >= 0)
142 char * str = gh_scm2newstr (name, &sz) ;
143 warning (_f ("Identifier name is a keyword: `%s'", str));
147 scopes_.top ()->set (scm_string_to_symbol (name), s);
150 My_lily_lexer::~My_lily_lexer ()
153 scm_gc_unprotect_object (toplevel_variable_tab_->self_scm ());
159 My_lily_lexer::LexerError (char const *s)
161 if (include_stack_.empty ())
163 progress_indication (_f ("error at EOF: %s", s)+ String ("\n"));
168 Input spot (get_source_file (),here_str0 ());
174 My_lily_lexer::escaped_char (char c) const
192 My_lily_lexer::here_input () const
194 Source_file * f= get_source_file ();
195 return Input (f, (char*)here_str0 ());