#define SX_NOLONGJMP 0x0040 /* don't longjmp on fatal error */
#define SX_ARITHSUB 0x0080 /* extracting $(( ... )) (currently unused) */
#define SX_POSIXEXP 0x0100 /* extracting new Posix pattern removal expansions in extract_dollar_brace_string */
+#define SX_WORD 0x0200 /* extracting word in ${param op word} */
/* Remove backslashes which are quoting backquotes from STRING. Modifies
STRING, and returns a pointer to it. */