Re: how to change node value based on other node value

Using XML::XSH2, a less verbose wrapper around XML::LibXML:

open file.xml ;
set /Settings/Channels/Channel[@Name='L1']/@Voltage 300 ;
save :b ;
[download]

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Comment on Re: how to change node value based on other node value Download Code

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Re^2: how to change node value based on other node value by ccherri (Acolyte) on Apr 08, 2015 at 18:10 UTC
Choroba, thanks. Your syntax gave me a clue that leads to a solution (XSH2 is not in the ppm library for Activestate and since it took almost all day to load LibXML I am reluctant to go down that path). Here is my solution, albeit a little more verbose...the syntax is at least obvious which is a benefit for simpletons like myself! `my ($value) = $root->findnodes('/Settings[1]/Channels[1]/Channel[@Name +="Ln"]/@Voltage '); $value->setValue($new_voltage);}` [download] So now my question is, does the above get me into any trouble??? Thanks Again Chris	[reply] [d/l]

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Re^2: how to change node value based on other node value
by ccherri (Acolyte) on Apr 08, 2015 at 18:10 UTC

Choroba, thanks. Your syntax gave me a clue that leads to a solution (XSH2 is not in the ppm library for Activestate and since it took almost all day to load LibXML I am reluctant to go down that path). Here is my solution, albeit a little more verbose...the syntax is at least obvious which is a benefit for simpletons like myself!

my ($value) = $root->findnodes('/Settings[1]/Channels[1]/Channel[@Name
+="Ln"]/@Voltage ');
$value->setValue($new_voltage);}
[download]

So now my question is, does the above get me into any trouble??? Thanks Again Chris

[reply]
[d/l]