Re: [Comm] xmllint

Re: [Comm] xmllint

[Dmitry V. Levin]

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Hi,

On Sun, Jan 19, 2014 at 06:05:22PM +0400, belka wrote:
>  Здравствуйте всем
> может кто нибуть обьяснит мне что я делаю не так ?

Зависит от того, какую задачу вы решаете.

> обнаружил что то странное при парсинге xml файла

Парсинг xml тут не причем.

> [belka@home newfolder]$ ls
> file1  file2  file.xml
> [belka@home newfolder]$ cat ./file.xml
> <?xml version="1.0" encoding="UTF-8"?><root><messages><message id="2743937"  userID="5129" userRole="3" channelID="0"><text><![CDATA[*]]></text></message></messages></root>
> 
> [belka@home newfolder]$ echo "cat /root/messages/message/text/text()" | xmllint --nocdata --shell file.xml  | sed '1d;$d' 
> *
> [belka@home newfolder]$ text="$(echo "cat /root/messages/message/text/text()" | xmllint --nocdata --shell file.xml  | sed '1d;$d' )"
> [belka@home newfolder]$ echo $text
> file1 file2 file.xml
> [belka@home newfolder]$ 

Эквивалентный пример без xmllint:
$ ls
file1   file2   file.xml
$ echo "*"
*
$ text="$(echo "*")"
$ echo $text
file1  file2  file.xml
$ echo "$text"
*

Согласно bash(1), "Expansion is performed on the command line after
it has been split into words. [...] The order of expansions is:
brace expansion, tilde expansion, parameter, variable and arithmetic
expansion and command substitution (done in a left-to-right fashion),
word splitting, and pathname expansion."


-- 
ldv

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