regexp issue

[iamdeath]

Hi

Can you tell me how can I regexp a number which contains certain things before and after for ex:


I want to look for "3" but look for 3 only when 3 has a number before it and an alphabet after it and turn 3 into THREE.

like this

11.6 3 test --> then turn 3 into Three

Turn Number three into Alphabet Three

but

if it's number 3 number then return
or if it's alphabet 3 alphabet return

Thanks
iamdeath

[awyeah]

Hi
like this:

11.6 3 test --> then turn 3 into Three

To match this you can use this:

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#if $text is the string: "11.6 3 test"

if {[regexp {^(([0-9.]{3,})|([0-9]{1,}))(\x20)(3)(\x20)([a-z]{1,})$} $text]} {

#for substitution you can use regsub or string map
#or you can do it this way:

set text [split $text]
set text [lindex $text 0] Three [lindex $text 2]

[iamdeath]

Thanks for your reply awyeah but I dont think that will slve my problem ok let me tell you again, currently I am using this:

Code: Select all

regsub -all { 3 } $text " Three Runs " text

That will make " 3 " into " Three Runs ", but I want some changes like:

If 3 has numbers before it and alphabet after it then make that " 3 " into " Three Runs "

For ex:

Code: Select all

over 18.1 3 fuller 
over 19.4 3 This is a test

I want that " 3 " to be turned into Three Runs. So it will look like:

Code: Select all

over 18.1 Three Runs fuller 
over 19.4 Three Runs This is a test

Thanks

[nml375]

Untested, but I guess this should do the trick, based on your examples:

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regsub -all {([[:digit:].]+) 3 ([[:alpha:]]+)} $text {\1 Three Runs \2} out

[awyeah]

Well my idea was first to check with regexp to match the string and then proceed to substitute, you can substitute in many ways: regsub IS NOT the ONLY SOLUTION.

You can use nml's expression for regsub or use this then, lol:

Code: Select all

set text [lindex [split $text] 0] Three Runs [lrange [split $text] 2 end]

This should also do the work for you, matches the two output strings you showed.

[iamdeath]

Thanks alot nml, that solved the issue. awyeah I could use your expression but I don't know how to place it I was afraid I might disturb the whole code when regsub is easy and safe to use or remove

Thanks once again awyeah and nml.

iamdeath