Add original unix v6

2018-01-27 22:35:41 +09:00
commit 2c7099ee50
664 changed files with 106254 additions and 0 deletions
@@ -0,0 +1,16 @@
+extern int yyline;  /* input line number */
+
+yyerror(s) char *s; {
+  extern int yychar;
+  extern char *yysterm[];
+  printf("\n%s", s );
+  if( yyline ) printf(", line %d,", yyline );
+  printf(" on input: ");
+  if( yychar >= 0400 ) printf("%s\n", yysterm[yychar-0400] );
+  else switch ( yychar ) {
+    case '\t': printf( "\\t\n" ); return;
+    case '\n': printf( "\\n\n" ); return;
+    case '\0': printf( "$end\n" ); return;
+    default: printf( "%c\n" , yychar ); return;
+    }
+  }