Regular Expressions. Detect status across multiple lines

sumncguy · 02-02-2016, 03:31 PM

This is a real world problem.

I need to check the status of power supplies.

An example of the data .... Note when quoted here the leading white space on the lines Fan.* through Thermal.* are stripped.

Quote:

SYS PS1 is present.
Fan status: Normal
Input Voltage status: Normal
DC Output Voltage status: Normal
Type: AC
Thermal status: Normal

SYS PS2 is absent.

The RE Im using .. its just ugly

Code:

\s+Fan.*:\sNormal\s+Input.*:\sNormal\s+DC.*:\sNormal\s+Type.*\s+Therm.*:\sNormal

Is there a better way to do this ?

astrogeek · 02-02-2016, 04:02 PM

Use CODE tags instead of QUOTEs and it will preserve the whitespace.

Also, just to be very clear about what you want to do, give an example of the input plus an example of the desired output.

From that someone can help much more effectively.

syg00 · 02-02-2016, 05:35 PM

There is always a better way.

Multiple test in long data eventually always gets ugly. If you don't like the ugliosity, try ANDing multiple tests - might be more readable.

danielbmartin · 02-02-2016, 06:29 PM

Quote:

Originally Posted by sumncguy

Is there a better way to do this ?

To do what? Your problem statement is opaque and lacks an example of the desired output. You provided a sample RegExp but didn't show how you are using it. sed? grep? Something else?

Daniel B. Martin

grail · 02-02-2016, 11:52 PM

ditto to all of the above. Hard to assist without even knowing what command / language you are using?