关于sed的疑问 (又是 locale 对字符排序的影响)

zxc159

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1^# zxc159 发表于 2008-06-12 12:25

关于sed的疑问 (又是 locale 对字符排序的影响)

文件wk
northwest NW Joel Craig 3.0 .98 3 4
western WE Sharon Kelly 5.3 .97 5 23
southwest SW Chris Foster 2.7 .8 2 18
southern SO May Chin 5.1 .95 4 15
southeast SE Derek Johnson 4.0 .7 4 17
eastern EA Susan Beal 4.4 .84 5 20
northeast NE TJ Nichols 5.1 .94 3 13
north NO Val Shultz 4.5 .89 5 9

central CT Sheri Watson 5.7 .94 5 13

用命令sed 's/ $[A-Z][a-z][a-z]*$ $[A-Z][a-z]* $/ \2 \1/g' wk为什么不可以达到和命令 sed 's/ $[a-zA-Z]\+$ $[a-zA-Z]\+$$ \+[0-9]$/ \2 \1\3/' wk一样的结果?
不可以用大写字母后面一个小写字母做特征.必须用空格和数字吗?
northwest NW Craig Joel 3.0 .98 3 4
western WE Kelly Sharon  5.3 .97 5 23
southwest SW Foster Chris  2.7 .8  2 18
southern  SO Chin May    5.1 .95 4 15
southeast SE Johnson Derek 4.0 .7  4 17
eastern EA Beal Susan 4.4 .84 5 20
northeast NE Nichols TJ 5.1 .94 3 13
north    NO Shultz Val 4.5 .89 5 9
central CT Watson Sheri  5.7 .94 5 13

　　　　　　

dearvoid

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2^# dearvoid 发表于 2008-06-12 16:46

尽量把关键问题抽象提炼出来, 用准确简短的语言描述清楚. 像这样贴一堆内容加上长长的一个 RE 上来, 对别人的耐心是种考验

dearvoid

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3^# dearvoid 发表于 2008-06-13 09:26

FYI:

引用:

-(dearvoid@LinuxEden:Forum)-(~/tmp)-
[$$=3901 $?=0] ; cat wk
northwest NW Joel Craig 3.0 .98 3 4
western WE Sharon Kelly  5.3 .97 5 23
southwest SW Chris Foster  2.7 .8  2 18
southern  SO May Chin    5.1 .95 4 15
southeast SE Derek Johnson 4.0 .7  4 17
eastern EA Susan Beal 4.4 .84 5 20
northeast NE TJ Nichols 5.1 .94 3 13
north    NO Val Shultz 4.5 .89 5 9
central CT Sheri Watson  5.7 .94 5 13
-(dearvoid@LinuxEden:Forum)-(~/tmp)-
[$$=3901 $?=0] ; sed 's/ $[a-zA-Z]\+$ $[a-zA-Z]\+$$ \+[0-9]$/ \2 \1\3/' wk
northwest NW Craig Joel 3.0 .98 3 4
western WE Kelly Sharon  5.3 .97 5 23
southwest SW Foster Chris  2.7 .8  2 18
southern  SO Chin May    5.1 .95 4 15
southeast SE Johnson Derek 4.0 .7  4 17
eastern EA Beal Susan 4.4 .84 5 20
northeast NE Nichols TJ 5.1 .94 3 13
north    NO Shultz Val 4.5 .89 5 9
central CT Watson Sheri  5.7 .94 5 13
-(dearvoid@LinuxEden:Forum)-(~/tmp)-
[$$=3901 $?=0] ; sed 's/ $[A-Z][a-z]\+$ $[A-Z][a-z]\+$ / \2 \1 /g' wk
northwest NW Craig Joel 3.0 .98 3 4
western WE Kelly Sharon  5.3 .97 5 23
southwest SW Foster Chris  2.7 .8  2 18
southern  SO Chin May    5.1 .95 4 15
southeast SE Johnson Derek 4.0 .7  4 17
eastern EA Beal Susan 4.4 .84 5 20
northeast NE TJ Nichols 5.1 .94 3 13
north    NO Shultz Val 4.5 .89 5 9
central CT Watson Sheri  5.7 .94 5 13
-(dearvoid@LinuxEden:Forum)-(~/tmp)-
[$$=3901 $?=0] ; bye

zxc159

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4^# zxc159 发表于 2008-06-13 14:39

sed 's/ $[A-Z][a-z][a-z]*$ $[A-Z][a-z]* $ / \2 \1/g'
sed 's/ $[A-Z][a-z]\+$ $[A-Z][a-z]\+$ / \2 \1 /g' wk
为什么会有不同的结果呢？*前面不式比+多写了个【a-z】吗。　　　　　　

dearvoid

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5^# dearvoid 发表于 2008-06-13 14:50

...

引用:

-(dearvoid@LinuxEden:Forum)-(~/tmp)-
[$$=3901 $?=0] ; cat wk
northwest NW Joel Craig 3.0 .98 3 4
western WE Sharon Kelly  5.3 .97 5 23
southwest SW Chris Foster  2.7 .8  2 18
southern  SO May Chin    5.1 .95 4 15
southeast SE Derek Johnson 4.0 .7  4 17
eastern EA Susan Beal 4.4 .84 5 20
northeast NE TJ Nichols 5.1 .94 3 13
north    NO Val Shultz 4.5 .89 5 9
central CT Sheri Watson  5.7 .94 5 13
-(dearvoid@LinuxEden:Forum)-(~/tmp)-
[$$=3901 $?=0] ; sed 's/ $[A-Z][a-z][a-z]*$ $[A-Z][a-z]* $ / \2 \1/g' wk
northwest NW Craig  Joel  3.0 .98 3 4
western WE Kelly  Sharon5.3 .97 5 23
southwest SW Foster  Chris2.7 .8  2 18
southern  SO Chin  May 5.1 .95 4 15
southeast SE Derek Johnson 4.0 .7  4 17
eastern EA Beal  Susan  4.4 .84 5 20
northeast NE TJ Nichols 5.1 .94 3 13
north    NO Shultz  Val  4.5 .89 5 9
central CT Watson  Sheri5.7 .94 5 13
-(dearvoid@LinuxEden:Forum)-(~/tmp)-
[$$=3901 $?=0] ; sed 's/ $[A-Z][a-z][a-z]*$ $[A-Z][a-z]*$ / \2 \1 /g' wk
northwest NW Craig Joel 3.0 .98 3 4
western WE Kelly Sharon  5.3 .97 5 23
southwest SW Foster Chris  2.7 .8  2 18
southern  SO Chin May    5.1 .95 4 15
southeast SE Johnson Derek 4.0 .7  4 17
eastern EA Beal Susan 4.4 .84 5 20
northeast NE TJ Nichols 5.1 .94 3 13
north    NO Shultz Val 4.5 .89 5 9
central CT Watson Sheri  5.7 .94 5 13
-(dearvoid@LinuxEden:Forum)-(~/tmp)-
[$$=3901 $?=0] ; bye

zxc159

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6^# zxc159 发表于 2008-06-13 18:06

多谢版主了,看样子是我的系统有问题.我用的是linux red hat 9.0的.
用sed 's/ $[A-Z][a-z][a-z]*$ $[A-Z][a-z]* $ / \2 \1/g' wk
和sed 's/ $[A-Z][a-z]\+$ $[A-Z][a-z]\+$ / \2 \1 /g' wk都不能产生正确的结果.
结果都是
northwest Joel NW Craig 3.0 .98 3 4
western Sharon WE Kelly 5.3 .97 5 23
southwest Chris SW Foster 2.7 .8 2 18
southern May SO Chin 5.1 .95 4 15
郁闷了.
必需后面还加个( \+[0-9]\)　　　　　　

dearvoid

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7^# dearvoid 发表于 2008-06-14 09:51

看看你的 sed 什么版本? locale 怎么设的?

引用:

-(dearvoid@LinuxEden:Forum)-(~/tmp)-
[$$=29459 $?=0] ; sed --version
GNU sed version 4.1.4
Copyright (C) 2003 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE,
to the extent permitted by law.
-(dearvoid@LinuxEden:Forum)-(~/tmp)-
[$$=29459 $?=0] ; locale
LANG=en_US.UTF-8
LANGUAGE=en_US:en
LC_CTYPE="en_US.UTF-8"
LC_NUMERIC="en_US.UTF-8"
LC_TIME="en_US.UTF-8"
LC_COLLATE="en_US.UTF-8"
LC_MONETARY="en_US.UTF-8"
LC_MESSAGES="en_US.UTF-8"
LC_PAPER="en_US.UTF-8"
LC_NAME="en_US.UTF-8"
LC_ADDRESS="en_US.UTF-8"
LC_TELEPHONE="en_US.UTF-8"
LC_MEASUREMENT="en_US.UTF-8"
LC_IDENTIFICATION="en_US.UTF-8"
LC_ALL=
-(dearvoid@LinuxEden:Forum)-(~/tmp)-
[$$=29459 $?=0] ; bye

zxc159

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8^# zxc159 发表于 2008-06-15 09:02

[zm@hangkar zm]$ sed --version
GNU sed version 4.0.5
Copyright (C) 2002 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE,
to the extent permitted by law.
[zm@hangkar zm]$ locale
LANG=zh_CN.GB18030
LC_CTYPE="zh_CN.GB18030"
LC_NUMERIC="zh_CN.GB18030"
LC_TIME="zh_CN.GB18030"
LC_COLLATE="zh_CN.GB18030"
LC_MONETARY="zh_CN.GB18030"
LC_MESSAGES="zh_CN.GB18030"
LC_PAPER="zh_CN.GB18030"
LC_NAME="zh_CN.GB18030"
LC_ADDRESS="zh_CN.GB18030"
LC_TELEPHONE="zh_CN.GB18030"
LC_MEASUREMENT="zh_CN.GB18030"
LC_IDENTIFICATION="zh_CN.GB18030"
LC_ALL=　　　　　　

dearvoid

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9^# dearvoid 发表于 2008-06-15 19:34

不应该有问题

哪天找个 redhat 9 试试　　　　　　

dearvoid

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10^# dearvoid 发表于 2008-06-16 09:50

找了个 redhat 9 试了试, 还真的有问题:

引用:

-(dearvoid@LinuxEden:Forum)-(~/tmp)-
[$$=25950 $?=0] ; cat /etc/redhat-release
Red Hat Linux release 9 (Shrike)
-(dearvoid@LinuxEden:Forum)-(~/tmp)-
[$$=25950 $?=0] ; sed --version
GNU sed version 4.0.5
Copyright (C) 2002 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE,
to the extent permitted by law.
-(dearvoid@LinuxEden:Forum)-(~/tmp)-
[$$=25950 $?=0] ; locale
LANG=en_US.UTF-8
LC_CTYPE="en_US.UTF-8"
LC_NUMERIC="en_US.UTF-8"
LC_TIME="en_US.UTF-8"
LC_COLLATE="en_US.UTF-8"
LC_MONETARY="en_US.UTF-8"
LC_MESSAGES="en_US.UTF-8"
LC_PAPER="en_US.UTF-8"
LC_NAME="en_US.UTF-8"
LC_ADDRESS="en_US.UTF-8"
LC_TELEPHONE="en_US.UTF-8"
LC_MEASUREMENT="en_US.UTF-8"
LC_IDENTIFICATION="en_US.UTF-8"
LC_ALL=
-(dearvoid@LinuxEden:Forum)-(~/tmp)-
[$$=25950 $?=0] ; sed 's/ $[A-Z][a-z]\+$ $[A-Z][a-z]\+$ / \2 \1 /g' wk
northwest Joel NW Craig 3.0 .98 3 4
western Sharon WE Kelly 5.3 .97 5 23
-(dearvoid@LinuxEden:Forum)-(~/tmp)-
[$$=25950 $?=0] ; LC_ALL=zh_CN.GB18030 sed 's/ $[A-Z][a-z]\+$ $[A-Z][a-z]\+$ / \2 \1 /g' wk
northwest Joel NW Craig 3.0 .98 3 4
western Sharon WE Kelly 5.3 .97 5 23
-(dearvoid@LinuxEden:Forum)-(~/tmp)-
[$$=25950 $?=0] ; LC_ALL=zh_CN.GBK sed 's/ $[A-Z][a-z]\+$ $[A-Z][a-z]\+$ / \2 \1 /g' wk
northwest Joel NW Craig 3.0 .98 3 4
western Sharon WE Kelly 5.3 .97 5 23
-(dearvoid@LinuxEden:Forum)-(~/tmp)-
[$$=25950 $?=0] ; LC_ALL=zh_CN.GB2312 sed 's/ $[A-Z][a-z]\+$ $[A-Z][a-z]\+$ / \2 \1 /g' wk
northwest Joel NW Craig 3.0 .98 3 4
western Sharon WE Kelly 5.3 .97 5 23
-(dearvoid@LinuxEden:Forum)-(~/tmp)-
[$$=25950 $?=0] ; LC_ALL=C sed 's/ $[A-Z][a-z]\+$ $[A-Z][a-z]\+$ / \2 \1 /g' wk
northwest NW Craig Joel 3.0 .98 3 4
western WE Kelly Sharon 5.3 .97 5 23
-(dearvoid@LinuxEden:Forum)-(~/tmp)-
[$$=25950 $?=0] ; bye

可以看出 LC_ALL 设成 C 时是正确的, 可能是 locale 方面的 bug