excluding special characters when trying to print

Spooky has asked for the wisdom of the Perl Monks concerning the following question:

Hi Monks, ..two questions: 1) ..in trying to print a string, I'm able to print the string itself but the end contains special characters - e.g., "Voltage_level" is what I want to print but I'm getting "Voltage_Level^A" (the last eight bits are 00000001 which is a hex 01 and control SOH). How can I avoid printing special characters? 2) How can I delete Node IDs under my userid (spooky). ..........Thanks!

Comment on excluding special characters when trying to print

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Re: excluding special characters when trying to print by Corion (Patriarch) on Jan 09, 2009 at 13:46 UTC
The best approach to removing unwanted stuff in your program output is not to have it in the data in the first place. Depending on how you acquire the input data, you might want to sanitize it, by only keeping the printable stuff: `s/[\x00-\x1f]/_/g; # replace all unprintables with _` [download] ... or you might want to find out why you're getting unprintable characters in your input data. As to deleting nodes, this is not possible here. Also see (tye)Re: why a nodelet can be kept against author wish?.	[reply] [d/l]
Re^2: excluding special characters when trying to print by repellent (Priest) on Jan 09, 2009 at 18:44 UTC
I would recommend this instead: `s/[[:^print:]]/_/g; # replace all unprintables with _` [download]	[reply] [d/l]
Re^2: excluding special characters when trying to print by Spooky (Beadle) on Jan 09, 2009 at 14:10 UTC
..thanks Corion - I'll give that a try.	[reply]
Re: excluding special characters when trying to print by swampyankee (Parson) on Jan 09, 2009 at 13:59 UTC
About the only way you can delete nodes under your ID is to ask for them to be reaped. My advice is to never write anything you're not willing to let stand forever ;-) Information about American English usage here and here. Floating point issues? Please read this before posting. — emc	[reply]