Revision 1697bf30df3ec6c28b180bc290d7d11d2fe97562 authored by Junio C Hamano on 24 April 2014, 19:31:50 UTC, committed by Junio C Hamano on 24 April 2014, 19:31:51 UTC
A last minute (and hopefully the last) fix to avoid coredumps due to an incorrect pointer arithmetic. * jk/pack-bitmap: ewah_bitmap.c: do not assume size_t and eword_t are the same size
line-range.h
#ifndef LINE_RANGE_H
#define LINE_RANGE_H
/*
* Parse one item in an -L begin,end option w.r.t. the notional file
* object 'cb_data' consisting of 'lines' lines.
*
* The 'nth_line_cb' callback is used to determine the start of the
* line 'lno' inside the 'cb_data'. The caller is expected to already
* have a suitable map at hand to make this a constant-time lookup.
*
* 'anchor' is the 1-based line at which relative range specifications
* should be anchored. Absolute ranges are unaffected by this value.
*
* Returns 0 in case of success and -1 if there was an error. The
* actual range is stored in *begin and *end. The counting starts
* at 1! In case of error, the caller should show usage message.
*/
typedef const char *(*nth_line_fn_t)(void *data, long lno);
extern int parse_range_arg(const char *arg,
nth_line_fn_t nth_line_cb,
void *cb_data, long lines, long anchor,
long *begin, long *end,
const char *path);
/*
* Scan past a range argument that could be parsed by
* 'parse_range_arg', to help the caller determine the start of the
* filename in '-L n,m:file' syntax.
*
* Returns a pointer to the first character after the 'n,m' part, or
* NULL in case the argument is obviously malformed.
*/
extern const char *skip_range_arg(const char *arg);
#endif /* LINE_RANGE_H */
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