gsub question on special charaters

[Robert Keller]

I have a string that looks like this :

ts = "^LThe beginning of the sentence"

I want to remove the "^L"

I've tried

ts.gsub!(/^[\^L]/,'')

which removes the "^", but I need to remove the "^L" when they are
together and at the beginning of the sentence.

Any help is welcome

 

[Phrogz]

I have a string that looks like this :

ts = "^LThe beginning of the sentence"

I want to remove the "^L"

I've tried

ts.gsub!(/^[\^L]/,'')

which removes the "^", but I need to remove the "^L" when they are
together and at the beginning of the sentence.

irb(main):001:0> ts = "^LThe beginning of the sentence"
=> "^LThe beginning of the sentence"
irb(main):002:0> ts.sub /^\^L/, ''
=> "The beginning of the sentence"

Also:
1) Do you really mean ^ (start of line) or do you mean \A (start of
string)?
2) No need to use gsub if there's only ever going to be a single
match.

 

[Ben Atkin]

Yours doesn't work because characters in the square brackets can't be
escaped. Instead of matching that character, it will match "\", "^",
or "L". Phrogz has the right answer; just thought I'd explain why his
works and yours doesn't.

Ben

I have a string that looks like this :

ts = "^LThe beginning of the sentence"

I want to remove the "^L"

I've tried

ts.gsub!(/^[\^L]/,'')

which removes the "^", but I need to remove the "^L" when they are
together and at the beginning of the sentence.

Any help is welcome

 

[Robert Keller]

Note: parts of this message were removed by the gateway to make it a legal Usenet post.

Thanks! The explanation helped. I just ordered
Mastering Regular Expressions
<http://www.amazon.com/Mastering-Reg...bs_sr_1?ie=UTF8&s=books&qid=1195585371&sr=1-1>


Mastering Regular Expressions
<http://www.amazon.com/Mastering-Reg...bs_sr_1?ie=UTF8&s=books&qid=1195585371&sr=1-1>
by Jeffrey Friedl


--
Robert Keller
--------------------------------------------------
(e-mail address removed)

Yours doesn't work because characters in the square brackets can't be
escaped. Instead of matching that character, it will match "\", "^",
or "L". Phrogz has the right answer; just thought I'd explain why his
works and yours doesn't.

Ben

I have a string that looks like this :

ts = "^LThe beginning of the sentence"

I want to remove the "^L"

I've tried

ts.gsub!(/^[\^L]/,'')

which removes the "^", but I need to remove the "^L" when they are
together and at the beginning of the sentence.

Any help is welcome