/* POSIX says that a tag must be both an id and a C union member, but
historically almost any character is allowed in a tag. We disallow
/* POSIX says that a tag must be both an id and a C union member, but
historically almost any character is allowed in a tag. We disallow
/* Zero or more instances of backslash-newline. Following GCC, allow
white space between the backslash and the newline. */
/* Zero or more instances of backslash-newline. Following GCC, allow
white space between the backslash and the newline. */