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
},
86 {"textscript", TEXTSCRIPT
},
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_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 ());