Music notation

Studia/Kompilatory/music notation/compile.sh

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+#!/bin/bash
+
+bison -dv parser.y | echo 'bison'
+flex lexer.l | echo 'flex'
+g++ parser.tab.c lex.yy.c -lfl -o parser | echo 'kompilacja'

Studia/Kompilatory/music notation/lexer.l

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+%{
+#include <iostream>
+
+using namespace std;
+
+#define YY_DECL extern "C" int yylex()
+int line = 1;
+
+#include "parser.tab.h"
+%}
+
+%%
+
+[ \t]				;
+\n				{ line++; }
+
+alias				{ return   ALIAS; }
+verse				{ return   VERSE; }
+ending				{ return   ENDING; }
+repeat				{ return   REPEAT; }
+
+K:[GF]				{ return   KEY; }
+S:[ABCDEFG](dur|mol)		{ return   SCALE; }
+
+M:[1-8]\/[1248]			{ return   METER; }
+T:				{ return   TEMPO; }
+
+\-				{ return   FLAT; }
+\+				{ return   SHARP; }
+~				{ return   NATURAL; }
+_				{ return   PAUSE; }
+[abcdefg][01234]		{ return   PITCH; }
+\.				{ return   DOT; }
+\|				{ return   BAR; }
+\|\|				{ return   PHRASE; }
+\|:				{ return   REPEAT_BEG; }
+:\|				{ return   REPEAT_END; }
+\{				{ return   LINE_BEG; }
+\}				{ return   LINE_END; }
+
+:				{ return   COLON; }
+,				{ return   COMMA; }
+
+[0-9]+				{ yylval.num = atoi(yytext);
+				  return   NUMBER; }
+[_a-zA-Z]+[_\-a-zA-Z0-9]*	{ yylval.num = atoi(yytext);
+				  return   STRING; }
+
+%%
+

Studia/Kompilatory/music notation/parser.y

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+%{
+#include <cstdio>
+#include <iostream>
+using namespace std;
+
+extern "C" int yylex();
+extern "C" int yyparse();
+extern "C" FILE *yyin;
+extern "C" char *yytext;
+extern int line;
+ 
+void yyerror(const char *s);
+%}
+
+%union {
+	int num;
+	char*str;
+}
+
+%token ALIAS VERSE ENDING REPEAT
+
+%token KEY SCALE
+
+%token METER TEMPO
+
+%token FLAT SHARP NATURAL PAUSE PITCH  DOT BAR PHRASE REPEAT_BEG REPEAT_END LINE_BEG LINE_END
+
+%token COLON COMMA
+
+%token <num> NUMBER
+%token <str> STRING
+
+%%
+
+file:
+	alias line { cout << "Plik  "<< yytext << endl; }
+	;
+
+alias:
+	alias ALIAS STRING chord { cout << "Alias  "<< yytext << endl; }
+	| ALIAS STRING chord { cout << "Alias  "<< yytext << endl; }
+	;
+
+line:
+	LINE_BEG line_inside LINE_END { cout << "Linia "<< yytext << endl; }
+	;
+
+line_inside:
+	line_info verse string { cout << "Wnętrze linii "<< yytext << endl; }
+	| line_info verse { cout << "Wnętrze linii "<< yytext << endl; }
+	;
+
+line_info:
+	KEY SCALE { cout << "Klucz i skala "<< yytext << endl; }
+	| KEY { cout << "Klucz "<< yytext << endl; }
+	;
+
+verse:
+	verse verse_inside
+	| verse_inside { cout << "Część "<< yytext << endl; }
+	;
+
+verse_inside:
+	verse_declaration path { cout << "Wnętrze części "<< yytext << endl; }
+	;
+
+verse_declaration:
+	VERSE STRING { cout << "Deklaracja części "<< yytext << endl; }
+	;
+
+string:
+	string STRING
+	| STRING { cout << "Napis "<< yytext << endl; }
+	;
+
+path:
+	path path_inside
+	| path_inside { cout << "Ścieżka "<< yytext << endl; }
+	;
+
+path_inside:
+	phrase { cout << "Wnętrze ścieżki "<< yytext << endl; }
+	| repeat { cout << "Wnętrze ścieżki "<< yytext << endl; }
+	;
+
+phrase:
+	PHRASE bar_group PHRASE { cout << "Fraza "<< yytext << endl; }
+	;
+
+repeat:
+	repeat_inside repeat_number ending_bar { cout << "Fraza powtarzana z taktem końcowym "<< yytext << endl; }
+	| repeat_inside repeat_number { cout << "Fraza powtarzana "<< yytext << endl; }
+	;
+
+repeat_inside:
+	REPEAT_BEG bar_group ending_bar REPEAT_END { cout << "Wnętrze frazy "<< yytext << endl; }
+	| REPEAT_BEG bar_group REPEAT_END { cout << "Wnętrze frazy "<< yytext << endl; }
+	;
+
+repeat_number:
+	REPEAT NUMBER { cout << "Powtarzanie "<< yytext << endl; }
+	;
+
+bar_group:
+	bar bar_group
+	| bar { cout << "Takty "<< yytext << endl; }
+	;
+
+ending_bar:
+	ending bar { cout << "Takt końcowy "<< yytext << endl; }
+	;
+
+ending:
+	ending COMMA NUMBER
+	| ENDING NUMBER { cout << "Zakończenie "<< yytext << endl; }
+	;
+
+bar:
+	bar_inside BAR { cout << "Takt "<< yytext << endl; }
+	| bar_inside { cout << "Takt "<< yytext << endl; }
+	;
+
+bar_inside:
+	bar_info sound_group { cout << "\tWnętrze taktu "<< yytext << endl; }
+	| sound_group { cout << "\tWnętrze taktu "<< yytext << endl; }
+	;
+
+bar_info:
+	METER TEMPO NUMBER { cout << "\t\tMetrum i tempo "<< yytext << endl; }
+	;
+
+sound_group:
+	sound_group COMMA sound
+	| sound { cout << "\t\tDźwięki "<< yytext << endl; }
+	;
+
+sound:
+	note COLON NUMBER DOT { cout << "\t\tDźwięk "<< yytext << endl; }
+	| note COLON NUMBER { cout << "\t\tDźwięk "<< yytext << endl; }
+	;
+
+note:
+	tone { cout << "\t\tNuta "<< yytext << endl; }
+	| chord { cout << "\t\tAkord "<< yytext << endl; }
+	| STRING { cout << "\t\tMakro "<< yytext << endl; }
+	| PAUSE { cout << "\t\tPauza "<< yytext << endl; }
+	;
+
+chord:
+	tone COMMA chord
+	| tone COMMA tone { cout << "\t\t\tChwyt "<< yytext << endl; }
+	;
+
+tone:
+	symbol PITCH { cout << "\t\t\t\tWysokość "<< yytext << endl; }
+	| PITCH { cout << "\t\t\t\tWysokość "<< yytext << endl; }
+	;
+
+symbol:
+	FLAT { cout << "\t\t\t\tBemol "<< yytext << endl; }
+	| SHARP { cout << "\t\t\t\tKrzyżyk "<< yytext << endl; }
+	| NATURAL { cout << "\t\t\t\tKasownik "<< yytext << endl; }
+	;
+
+%%
+
+int main(int argc, char* args[]) {
+	FILE *f = fopen(args[1], "r");
+	if (!f) {
+		cerr << "fopen error " << endl ;
+		return -1;
+	}
+	
+	yyin = f;
+	
+	do {
+		yyparse();
+	} while (!feof(yyin));
+	
+}
+
+void yyerror(const char *s) {
+	cout << "line  " << line << ": " << yytext << ",  " << s << endl;
+	exit(-1);
+}

Studia/Kompilatory/music notation/sample

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+alias C-Dur c2,e2,g2,c3,e3
+alias A-Mol a2,e2,a3,c3,e3
+
+{
+	K:G
+	S:Cdur
+	
+	verse Zwrotka
+	
+	|: M:3/4 T:120 a2,e2:4., c2:8, d2:8, e2:8 | C-Dur:4, _:8, e2:8, d2:8, c2:8 :| repeat 2
+	|| A-Mol:4, _:4, a2:8, a2:8 | c2:8, _:8, c2,e2:8, _:8, C-Dur:4 ||
+}