2 my-lily-lexer.cc -- implement My_lily_lexer
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
12 #include "interval.hh"
13 #include "identifier.hh"
14 #include "lily-guile.hh"
17 #include "my-lily-lexer.hh"
19 #include "source-file.hh"
25 static Keyword_ent the_key_tab[]={
26 {"autochange", AUTOCHANGE},
27 {"spanrequest", SPANREQUEST},
28 {"commandspanrequest", COMMANDSPANREQUEST},
29 {"simultaneous", SIMULTANEOUS},
30 {"sequential", SEQUENTIAL},
32 {"alternative", ALTERNATIVE},
36 {"chordmodifiers", CHORDMODIFIERS},
40 {"consists", CONSISTS},
41 {"consistsend", CONSISTSEND},
44 {"duration", DURATION},
52 {"musicalpitch", MUSICAL_PITCH},
58 {"notenames", NOTENAMES},
60 {"outputproperty", OUTPUTPROPERTY},
66 {"property", PROPERTY},
68 {"relative", RELATIVE},
71 {"addlyrics", ADDLYRICS},
72 {"partcombine", PARTCOMBINE},
76 {"textscript", TEXTSCRIPT},
78 {"translator", TRANSLATOR},
79 {"transpose", TRANSPOSE},
84 My_lily_lexer::My_lily_lexer()
86 keytable_p_ = new Keyword_table (the_key_tab);
87 toplevel_scope_p_ = new Scope;
88 scope_l_arr_.push (toplevel_scope_p_);
90 main_input_b_ = false;
94 My_lily_lexer::lookup_keyword (String s)
96 return keytable_p_->lookup (s.ch_C ());
100 My_lily_lexer::lookup_identifier (String s)
102 SCM sym = ly_symbol2scm (s.ch_C());
104 for (int i = scope_l_arr_.size (); i--; )
106 SCM val = SCM_UNSPECIFIED;
107 if (scope_l_arr_[i]->try_retrieve (sym, &val))
110 return SCM_UNSPECIFIED;
114 My_lily_lexer::start_main_input ()
116 new_input (main_input_str_, source_global_l);
117 allow_includes_b_ = allow_includes_b_ && !(safe_global_b);
121 My_lily_lexer::set_identifier (String name_str, SCM s)
123 if (lookup_keyword (name_str) >= 0)
125 warning ( _f ("Identifier name is a keyword: `%s'", name_str));
128 scope_l_arr_.top ()->set (name_str, s);
131 My_lily_lexer::~My_lily_lexer()
134 delete toplevel_scope_p_ ;
140 My_lily_lexer::LexerError (char const *s)
142 if (include_stack_.empty())
144 progress_indication (_f ("error at EOF: %s", s)+ String ("\n"));
149 Input spot (source_file_l(),here_ch_C());
155 My_lily_lexer::escaped_char(char c) const
173 My_lily_lexer::here_input () const
175 Source_file * f_l= source_file_l ();
176 return Input (f_l, (char*)here_ch_C ());