Added 'C_C++/bison/precedence.y'

C_C++/bison/precedence.y

@@ -0,0 +1,31 @@
+/* @BAKE
+    bison --debug -Wcounterexamples --header=precedence.tab.h -o precedence.tab.c $@;
+    gcc precedence.tab.c -o precedence;
+    ./precedence;
+   @STOP
+*/
+%{
+#include <stdlib.h>
+#include <stdio.h>
+#include "precedence.tab.h"
+int yylex() {
+    static int i = 0;
+    const int my_landscape[] = {'i', '+', 'i', '*', 'i', 0};
+    return my_landscape[i++];
+}
+void yyerror() { exit(1); }
+%}
+%token A B C
+%left '+'
+%left '*'
+%%
+expr: 'i'
+    | expr '+' expr { puts("+"); }
+    | expr '*' expr { puts("*"); }
+    ;
+%%
+signed main() {
+    yydebug = 1;
+    yyparse();
+    return 0;
+}