+
+struct strpush {
+ struct strpush *prev; /* preceding string on stack */
+ char *prevstring;
+ int prevnleft;
+#ifdef CONFIG_ASH_ALIAS
+ struct alias *ap; /* if push was associated with an alias */
+#endif
+ char *string; /* remember the string since it may change */
+};
+
+struct parsefile {
+ struct parsefile *prev; /* preceding file on stack */
+ int linno; /* current line */
+ int fd; /* file descriptor (or -1 if string) */
+ int nleft; /* number of chars left in this line */
+ int lleft; /* number of chars left in this buffer */
+ char *nextc; /* next char in buffer */
+ char *buf; /* input buffer */
+ struct strpush *strpush; /* for pushing strings at this level */
+ struct strpush basestrpush; /* so pushing one is fast */
+};
+