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},
50 {"duration", DURATION},
51 {"dynamicscript", DYNAMICSCRIPT},
52 {"grobdescriptions", GROBDESCRIPTIONS},
55 {"glissando", GLISSANDO},
67 {"pitchnames", PITCHNAMES},
69 {"outputproperty", OUTPUTPROPERTY},
70 {"override", OVERRIDE},
76 {"property", PROPERTY},
78 {"relative", RELATIVE},
81 {"addlyrics", ADDLYRICS},
82 {"partcombine", PARTCOMBINE},
85 {"stylesheet", STYLESHEET},
88 {"translator", TRANSLATOR},
89 {"transpose", TRANSPOSE},
95 My_lily_lexer::My_lily_lexer ()
97 keytable_p_ = new Keyword_table (the_key_tab);
98 toplevel_variable_tab_ = new Scheme_hash_table ;
99 scope_p_ = new Scope (toplevel_variable_tab_);
101 scope_l_arr_.push (scope_p_);
104 main_input_b_ = false;
108 My_lily_lexer::lookup_keyword (String s)
110 return keytable_p_->lookup (s.ch_C ());
114 My_lily_lexer::lookup_identifier (String s)
116 SCM sym = ly_symbol2scm (s.ch_C ());
118 for (int i = scope_l_arr_.size (); i--;)
120 SCM val = SCM_UNSPECIFIED;
121 if (scope_l_arr_[i]->try_retrieve (sym, &val))
124 return SCM_UNSPECIFIED;
128 My_lily_lexer::start_main_input ()
130 new_input (main_input_str_, source_global_l);
131 allow_includes_b_ = allow_includes_b_ && ! (safe_global_b);
135 My_lily_lexer::set_identifier (String name_str, SCM s)
137 if (lookup_keyword (name_str) >= 0)
139 warning (_f ("Identifier name is a keyword: `%s'", name_str));
142 scope_l_arr_.top ()->set (name_str, s);
145 My_lily_lexer::~My_lily_lexer ()
148 scm_gc_unprotect_object (toplevel_variable_tab_->self_scm ());
155 My_lily_lexer::LexerError (char const *s)
157 if (include_stack_.empty ())
159 progress_indication (_f ("error at EOF: %s", s)+ String ("\n"));
164 Input spot (source_file_l (),here_ch_C ());
170 My_lily_lexer::escaped_char (char c) const
188 My_lily_lexer::here_input () const
190 Source_file * f_l= source_file_l ();
191 return Input (f_l, (char*)here_ch_C ());