question & exclaimation marks

[NewzNZ]

Hi there

Am just trying to filter question marks or exclaimation marks in a string...just wondering if something like this is the right way about it:

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	if {[string match {*\?*} $var] || [string match {*\!*} $var]} {
         do some stuff here etc
}

Thanks in advance for any help!

[caesar]

What do you mean by filtering? If you mean to see if the string has any of the two then you got two options: string index or regexp.

string first

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% set text "something ! in here"
something ! in here
% string first "!" $text
10

notice that this returns the position of the needle in the haystack, so you need to do something like:

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if {[string first "!" $text] > -1 || [string first "?" $text] > -1} {
# do something
}

regexp:

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% regexp -- {\!|\?} $text
1

notice that this one returns 0/1 (false or true) if any of the two is in there.

If you meant to replace/remove them from the string then you need string map like this:

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% string map {"!" ""} $text
something  in here
% set text "something ? in here"
something ? in here
% string map {"?" ""} $text
something  in here

Edit: Fixed a typo.

[NewzNZ]

Hi - that's great thank you for the suggestions - will try those options...

Thank you again!