2 my-lily-lexer.cc -- implement My_lily_lexer
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
12 #include "lily-proto.hh"
13 #include "scm-hash.hh"
14 #include "interval.hh"
16 #include "lily-guile.hh"
19 #include "my-lily-lexer.hh"
21 #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},
49 {"duration", DURATION},
50 {"dynamicscript", DYNAMICSCRIPT},
51 {"elementdescriptions", ELEMENTDESCRIPTIONS},
54 {"glissando", GLISSANDO},
66 {"pitchnames", PITCHNAMES},
68 {"outputproperty", OUTPUTPROPERTY},
69 {"override", OVERRIDE},
75 {"property", PROPERTY},
77 {"relative", RELATIVE},
80 {"addlyrics", ADDLYRICS},
81 {"partcombine", PARTCOMBINE},
84 {"stylesheet", STYLESHEET},
87 {"translator", TRANSLATOR},
88 {"transpose", TRANSPOSE},
94 My_lily_lexer::My_lily_lexer ()
96 keytable_p_ = new Keyword_table (the_key_tab);
97 toplevel_variable_tab_ = new Scheme_hash_table ;
98 scope_p_ = new Scope (toplevel_variable_tab_);
100 scope_l_arr_.push (scope_p_);
103 main_input_b_ = false;
107 My_lily_lexer::lookup_keyword (String s)
109 return keytable_p_->lookup (s.ch_C ());
113 My_lily_lexer::lookup_identifier (String s)
115 SCM sym = ly_symbol2scm (s.ch_C ());
117 for (int i = scope_l_arr_.size (); i--;)
119 SCM val = SCM_UNSPECIFIED;
120 if (scope_l_arr_[i]->try_retrieve (sym, &val))
123 return SCM_UNSPECIFIED;
127 My_lily_lexer::start_main_input ()
129 new_input (main_input_str_, source_global_l);
130 allow_includes_b_ = allow_includes_b_ && ! (safe_global_b);
134 My_lily_lexer::set_identifier (String name_str, SCM s)
136 if (lookup_keyword (name_str) >= 0)
138 warning (_f ("Identifier name is a keyword: `%s'", name_str));
141 scope_l_arr_.top ()->set (name_str, s);
144 My_lily_lexer::~My_lily_lexer ()
147 scm_unprotect_object (toplevel_variable_tab_->self_scm ());
154 My_lily_lexer::LexerError (char const *s)
156 if (include_stack_.empty ())
158 progress_indication (_f ("error at EOF: %s", s)+ String ("\n"));
163 Input spot (source_file_l (),here_ch_C ());
169 My_lily_lexer::escaped_char (char c) const
187 My_lily_lexer::here_input () const
189 Source_file * f_l= source_file_l ();
190 return Input (f_l, (char*)here_ch_C ());