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%{
/*
beats.l:
Copyright (C) 2009,2010 John ffitch,
This file is part of Csound.
The Csound Library is free software; you can redistribute it
and/or modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
Csound is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with Csound; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
02110-1301 USA
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "beats.tab.h"
#if defined(_WIN32) || defined(WIN32)
#include <io.h>
#define isatty(x) _isatty(x)
#endif
void comment(void);
void comment1(void);
int yyline = 0;
extern int last_note;
extern int last_integer;
extern double last_float;
extern double last_duration;
extern double bpm;
int next_instr=0;
extern int instrument;
extern int pnum;
%}
%option nounput
INTGR [0-9]+
FLOAT [[0-9]+\.([0-9]*)?
WHITE [ \t+]
BEATS [Bb][Ee][Aa][Tt][Ss]
BPS [Bb][Pp][Mm]
PERMEASURE [Pp][Ee][Rr][Mm][Ee][Aa][Ss][Uu][Rr][Ee]
QUIT ([Qq][Uu][Ii][Tt])|([Ee][Nn][Dd])
BAR [Bb][Aa][Rr]
%%
{WHITE} {}
"\n" { yyline++; return S_NL; }
"//" { comment(); return S_NL; }
";" { comment(); return S_NL; }
"=" { return S_EQ; }
"/*" { comment1(); }
{BEATS} { return T_BEATS;}
{BPS} { return T_BEATS;}
{PERMEASURE} { return T_PERMEASURE;}
{QUIT} { return T_QUIT; }
{BAR} { return T_BAR; }
"Ab" { last_note = 8; return T_NOTE;}
"Abb" { last_note = 7; return T_NOTE;}
"A#" { last_note = 10; return T_NOTE;}
"Ax" { last_note = 11; return T_NOTE;}
"A" { last_note = 9; return T_NOTE;}
"Bb" { last_note = 10; return T_NOTE;}
"Bbb" { last_note = 9; return T_NOTE;}
"B#" { last_note = 12; return T_NOTE;}
"Bx" { last_note = 13; return T_NOTE;}
"B" { last_note = 11; return T_NOTE;}
"Cb" { last_note = -1; return T_NOTE;}
"Cbb" { last_note = -2; return T_NOTE;}
"C#" { last_note = 1; return T_NOTE;}
"Cx" { last_note = 2; return T_NOTE;}
"C" { last_note = 0; return T_NOTE;}
"Db" { last_note = 1; return T_NOTE;}
"Dbb" { last_note = 0; return T_NOTE;}
"D#" { last_note = 3; return T_NOTE;}
"Dx" { last_note = 4; return T_NOTE;}
"D" { last_note = 2; return T_NOTE;}
"Eb" { last_note = 3; return T_NOTE;}
"Ebb" { last_note = 2; return T_NOTE;}
"E#" { last_note = 5; return T_NOTE;}
"Ex" { last_note = 6; return T_NOTE;}
"E" { last_note = 4; return T_NOTE;}
"Fb" { last_note = 4; return T_NOTE;}
"Fbb" { last_note = 3; return T_NOTE;}
"F#" { last_note = 6; return T_NOTE;}
"Fx" { last_note = 7; return T_NOTE;}
"F" { last_note = 5; return T_NOTE;}
"Gb" { last_note = 6; return T_NOTE;}
"Gbb" { last_note = 5; return T_NOTE;}
"G#" { last_note = 8; return T_NOTE;}
"Gx" { last_note = 9; return T_NOTE;}
"G" { last_note = 7; return T_NOTE;}
"R" { last_note = -3; return T_NOTE;}
"Z" { last_note = -3; return T_NOTE;}
"e" { last_duration = 0.5; return T_DURATION;}
"e." { last_duration = 0.75; return T_DURATION;}
"e.." { last_duration = 0.875; return T_DURATION;}
"ed" { last_duration = 0.75; return T_DURATION;}
"edd" { last_duration = 0.875; return T_DURATION;}
"eq" { last_duration = (4.0/5.0)*0.5; return T_DURATION;}
"es" { last_duration = (8.0/7.0)*0.5; return T_DURATION;}
"et" { last_duration = (1.0 / 3.0); return T_DURATION;}
"et." { last_duration = (1.0 / 3.0)*1.5; return T_DURATION;}
"h" { last_duration = 2.0; return T_DURATION;}
"h." { last_duration = 3.0; return T_DURATION;}
"h.." { last_duration = 3.5; return T_DURATION;}
"hd" { last_duration = 3.0; return T_DURATION;}
"hdd" { last_duration = 3.5; return T_DURATION;}
"hq" { last_duration = (4.0/5.0)*2.0; return T_DURATION;}
"hs" { last_duration = (8.0/7.0)*2.0; return T_DURATION;}
"ht" { last_duration = (4.0/3.0); return T_DURATION;}
"ht." { last_duration = (4.0/3.0)*1.5; return T_DURATION;}
"q" { last_duration = 1.0; return T_DURATION;}
"q." { last_duration = 1.5; return T_DURATION;}
"q.." { last_duration = 1.75; return T_DURATION;}
"qd" { last_duration = 1.5; return T_DURATION;}
"qdd" { last_duration = 1.75; return T_DURATION;}
"qq" { last_duration = (4.0/5.0); return T_DURATION;}
"qs" { last_duration = (8.0/7.0); return T_DURATION;}
"qt" { last_duration = (2.0/3.0); return T_DURATION;}
"qt." { last_duration = (2.0/3.0)*1.5; return T_DURATION;}
"s" { last_duration = 0.25; return T_DURATION;}
"s." { last_duration = 0.375; return T_DURATION;}
"s.." { last_duration = 0.4375; return T_DURATION;}
"sd" { last_duration = 0.375; return T_DURATION;}
"sdd" { last_duration = 0.4375; return T_DURATION;}
"sq" { last_duration = (4.0/5.0)*0.25; return T_DURATION;}
"ss" { last_duration = (8.0/7.0)*0.25; return T_DURATION;}
"st" { last_duration = (1.0 / 6.0); return T_DURATION;}
"st." { last_duration = (1.0 / 6.0)*1.5; return T_DURATION;}
"th" { last_duration = 0.125; return T_DURATION;}
"th." { last_duration = 1.5*0.125; return T_DURATION;}
"th.." { last_duration = 1.75*0.125; return T_DURATION;}
"thd" { last_duration = 1.5*0.125; return T_DURATION;}
"thdd" { last_duration = 1.75*0.125; return T_DURATION;}
"thq" { last_duration = (4.0/5.0)*0.125; return T_DURATION;}
"ths" { last_duration = (8.0/7.0)*0.125; return T_DURATION;}
"tht" { last_duration = (2.0 / 3.0)*0.125; return T_DURATION;}
"tht." { last_duration = (2.0 / 3.0)*0.125*1.5; return T_DURATION;}
"w" { last_duration = 4.0; return T_DURATION;}
"fff" { last_integer = 0; return T_DYN; }
"ff" { last_integer = -1; return T_DYN; }
"f" { last_integer = -2; return T_DYN; }
"mf" { last_integer = -3; return T_DYN; }
"mp" { last_integer = -4; return T_DYN; }
p[0-9]* { if (yyleng==1) { last_integer = -5; return T_DYN; }
else { pnum = atoi(&yytext[1]); return T_PARA; }
}
"pp" { last_integer = -6; return T_DYN; }
"ppp" { last_integer = -7; return T_DYN; }
"pppp" { last_integer = -8; return T_DYN; }
P[1-9][0-9]* { pnum = atoi(&yytext[1]); return T_PARA; }
"m" { return T_m;}
"b" { return T_b;}
"i"|"I" { next_instr = 1; return T_INSTR;}
{INTGR} { last_integer = atoi(yytext);
if (next_instr) { instrument = last_integer; next_instr = 0;}
return T_INTEGER;}
{FLOAT} { last_float = atof(yytext); return T_FLOAT;}
. { fprintf(stderr, "Unknown character %c(%.2x)\n",
yytext[0], yytext[0]);}
%%
void comment(void)
{
int c;
while ((c = input()) != '\n')
if (c==EOF) return; /* skip */
yyline++;
}
void comment1(void)
{
int c;
while ((c = input()) != '*') {
top:
if (c=='\n') yyline++; /* skip */
else if (c==EOF) exit(1);
}
if ((c = input())!='/') {
if (c=='\n') yyline++;
goto top;
}
return;
}
int yywrap(void)
{
/* extern FILE *myout; */
/* fprintf(myout, "e\n"); */
return 1;
}
void yyerror (char *s) {fprintf (stderr, "%s\n", s);}
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