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%{ // -*-Fundamental-*-
#include <fstream.h>
#include <stdio.h>
#include "glob.hh"
#include "string.hh"
#include "lexer.hh"
#include "keyword.hh"
#include "vray.hh"
#include "parser.hh"
#include "debug.hh"
sstack<istream *> include_stack;
static int last_print;
const int DOTPRINT=50; // every 50 lines dots
%}
%option c++
%option noyywrap
%option nodefault
%option yylineno
%option debug
%x notes
%x incl
%x quote
OPTSIGN !?
NOTENAMEI A|B|C|D|E|F|G|As|Bes|Ces|Des|Es|Fes|Ges|Ais|Bis|Cis|Dis|Eis|Fis|Gis
NOTENAMEII a|b|c|d|e|f|g|as|bes|ces|des|es|fes|ges|ais|bis|cis|dis|eis|fis|gis
NOTENAMEIII Ases|Beses|Ceses|Deses|Eses|Feses|Geses|Aisis|Bisis|Cisis|Disis|Eisis|Fisis|Gisis
NOTENAMEIIII ases|beses|ceses|deses|eses|feses|geses|aisis|bisis|cisis|disis|eisis|fisis|gisis
RESTNAME r|s
NOTENAME {NOTENAMEI}|{NOTENAMEII}|{NOTENAMEIII}|{NOTENAMEIIII}
PITCH ['`]*{OPTSIGN}{NOTENAME}
DURNAME 1|2|4|8|16|32
DURATION {DURNAME}\.*
FULLNOTE {PITCH}{DURATION}?
WORD [a-zA-Z]+
REAL [0-9]+(\.[0-9]*)?
%%
\$ {
BEGIN(notes); return '$';
}
<notes>{RESTNAME} {
const char *s = YYText();
yylval.string = new String (s);
mtor << "rest:"<< yylval.string;
return RESTNAME;
}
<notes>{PITCH} {
const char *s = YYText();
yylval.string = new String (s);
mtor << "pitch:"<< *yylval.string;
return PITCH;
}
<notes>{DURATION} {
yylval.string = new String (YYText());
return DURATION;
}
<notes>[:space:]+ {
}
<notes>[ \t\n]+ {
}
<notes>%.* {
}
<notes>\$ {
BEGIN(INITIAL); return '$';
}
<notes>. {
error("lexer error: illegal character found: " + String(YYText()));
}
\" {
BEGIN(quote);
}
<quote>[^\"]* {
yylval.string = new String (YYText());
}
<quote>\" {
BEGIN(INITIAL);
return STRING;
}
<<EOF>> {
if(!close_input())
yyterminate();
}
{WORD} {
int l = lookup_keyword(YYText());
if (l != -1)
return l;
Identifier * id = lookup_identifier(YYText());
if (id) {
yylval.id = id;
return IDENTIFIER;
}
String *sp = new String( YYText());
mtor << "new id: " << *sp;
yylval.string=sp;
return NEWIDENTIFIER;
}
{REAL} {
Real r;
int cnv=sscanf (YYText(), "%lf", &r);
assert(cnv == 1);
mtor << "token (REAL)" << r;
yylval.real = r;
return REAL;
}
[\{\}\[\]\(\)] {
mtor << "parens\n";
return YYText()[0];
}
[:=] {
char c = YYText()[0];
mtor << "misc char" <<c<<"\n";
return c;
}
[ \t\n]+ {
}
%.* {
//ignore
}
. {
error("lexer error: illegal character '"+String(YYText()[0])+
"' encountered");
return YYText()[0];
}
%%
yyFlexLexer *lexer=0;
// set the new input to s, remember old file.
void
new_input(String s)
{
istream *newin ;
if (s=="")
newin = &cin;
else
newin = new ifstream( s ); //
if ( ! *newin)
error("cant open " + s);
cout << "["<<s<<flush;
include_stack.push(newin);
if (!lexer) {
lexer = new yyFlexLexer;
lexer->set_debug( !monitor.silence("Lexer"));
}
lexer->switch_streams(newin);
}
// pop the inputstack.
bool
close_input()
{
istream *closing= include_stack.pop();
if (closing != &cin)
delete closing;
cout << "]" << flush;
if (include_stack.empty())
return false ;
else
lexer->switch_streams(include_stack.top());
return true;
}
int
yylex() {
return lexer->yylex();
}
void
yyerror(char *s)
{
*mlog << "error in line " << lexer->lineno() << ": " << s << '\n';
exit(1);
}
#if 0
<notes>{NOTENAME} {
yylval.string = new String (YYText());
return NOTENAME;
}
#endif
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