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(main): Emulate Solaris 8 and 9 "sort -y", so that

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"sort -y abc" is like "sort abc" whereas "sort -y 100" is like
plain "sort".
This commit is contained in:
Paul Eggert
2004-09-07 05:09:24 +00:00
parent 47b9873ada
commit 0cd2d8a70e
1 changed files with 17 additions and 3 deletions
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src/sort.c
+17 -3
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@@ -2472,9 +2472,23 @@ main (int argc, char **argv)
break;
case 'y':
/* Accept and ignore e.g. -y0 for compatibility with Solaris
2.x through Solaris 7. -y is marked as obsolete starting
with Solaris 8. */
/* Accept and ignore e.g. -y0 for compatibility with Solaris 2.x
through Solaris 7. It is also accepted by many non-Solaris
"sort" implementations, e.g., AIX 5.2, HP-UX 11i v2, IRIX 6.5.
-y is marked as obsolete starting with Solaris 8 (1999), but is
still accepted as of Solaris 10 prerelease (2004).
Solaris 2.5.1 "sort -y 100" reads the input file "100", but
emulate Solaris 8 and 9 "sort -y 100" which ignores the "100",
and which in general ignores the argument after "-y" if it
consists entirely of digits (it can even be empty). */
if (!optarg && optind != argc)
{
char const *p;
for (p = argv[optind]; ISDIGIT (*p); p++)
continue;
optind += !*p;
}
break;
case 'z':