diff options
Diffstat (limited to 'src/sort.c')
| -rw-r--r-- | src/sort.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/sort.c b/src/sort.c index 913019053..733df0adf 100644 --- a/src/sort.c +++ b/src/sort.c @@ -610,6 +610,36 @@ limfield (const struct line *line, const struct keyfield *key) ++ptr; } +#ifdef POSIX_UNSPECIFIED + /* The following block of code makes GNU sort incompatible with + standard Unix sort, so it's ifdef'd out for now. + The POSIX spec isn't clear on how to interpret this. + FIXME: request clarification. + + From: kwzh@gnu.ai.mit.edu (Karl Heuer) + Date: Thu, 30 May 96 12:20:41 -0400 + + [...]I believe I've found another bug in `sort'. + + $ cat /tmp/sort.in + a b c 2 d + pq rs 1 t + $ textutils-1.15/src/sort +0.6 -0.7 </tmp/sort.in + a b c 2 d + pq rs 1 t + $ /bin/sort +0.6 -0.7 </tmp/sort.in + pq rs 1 t + a b c 2 d + + Unix sort produced the answer I expected: sort on the single character + in column 6. GNU sort produced different results, because it disagrees + on the interpretation of the key-end spec "-M.N". Unix sort reads this + as "skip M fields, then N characters"; but GNU sort wants it to mean + "skip M fields, then either N characters or the rest of the current + field, whichever comes first". This extra clause applies only to + key-ends, not key-starts. + */ + /* Make LIM point to the end of (one byte past) the current field. */ if (tab) { @@ -628,6 +658,7 @@ limfield (const struct line *line, const struct keyfield *key) ++newlim; lim = newlim; } +#endif /* If we're skipping leading blanks, don't start counting characters until after skipping past any leading blanks. */ |