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authorwxj <wangxiaojianffgz@163.com>2016-12-25 15:58:10 +0800
committerRob Landley <rob@landley.net>2016-12-25 21:18:19 -0600
commit7a7378629cc3d67b27c64452391b80aa8a5a6481 (patch)
tree52e9ab10ae6357a24a9c970005809e410fc13151 /tests/tac.test
parent4582497e8839d7a3d73aa71f76c2aae915202d41 (diff)
downloadtoybox-7a7378629cc3d67b27c64452391b80aa8a5a6481.tar.gz
Fix a bug for sort. When the key_separator is not space, the sort commandline tool fails to sort by the 3rd,4th,etc column. For example: when you exec
$ sort -t',' -k 3n on a file which cotains: 1,2,3,4 2,3,4,1 4,1,2,3 3,4,1,2 you got: 4,1,2,3 1,2,3,4 2,3,4,1 3,4,1,2 but the expected output should be: 3,4,1,2 4,1,2,3 1,2,3,4 2,3,4,1 The bug is due to the dependency of "isspace(str[end])" at line 113. When searching for the non-space key_separator, the search stopped just at the position of first key_separator it met. The bug can be easily fixed by adding "end++" when the search have found one separator and exit the for loop.
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