using Perl to find string..

[seanjao]

Hi there:

I would like to use Perl to search a file containing data like the
following.
aaa01234 99.99 99.99 99.99
bb0567 99.99 99.99 99.99
ccccc89101 99.99 99.99 99.99

How can I let perl to match the first column if I type "bb567" without
the zero between "bb" and "567"?

Thanks
Sean

 

[Dr.Ruud]

Glenn Jackman schreef:

if (/^$wanted\b/) {

Safer:
if (/^\Q$wanted\E\b/) {

 

[Josef Moellers]

Hi there:

I would like to use Perl to search a file containing data like the
following.
aaa01234 99.99 99.99 99.99
bb0567 99.99 99.99 99.99
ccccc89101 99.99 99.99 99.99

How can I let perl to match the first column if I type "bb567" without
the zero between "bb" and "567"?

Based on these requirements:

my $wanted = 'bb567';

while (<DATA>) {
if (/^$wanted\b/) {
print 'exact match >> ';
}
elsif (/^([a-z]+)0+(\d+)/ and $wanted eq "$1$2") {

Based on the requirements "without *the* zero", that would be
elsif (/^([a-z]+)0?(\d+)/ and $wanted eq "$1$2") {

Personally, I would have made that
elsif (/^([a-z]+)0*(\d+)/ and $wanted eq "$1$2")

Josef

 

[seanjao]

Thanks guys!
It helps.

Sean

 

[Josef Moellers]

Thanks guys!

For what?

It helps.

What helps?

Please quote whatever you are replying to!

Thank you,

Josef

NB Please quote, but don't top-post.

 

[seanjao]

For what?


What helps?

Please quote whatever you are replying to!

Thank you,

Josef

Hey Josef:

I think I am polite enough to express my appreciaton to all the
thoughts I got.
Of course, including your thought.
Why do I need to specifically to quote anything?
Think about it, man.

For what?

For their time and efforts to help someone he/she does not know.
Understand?

Sean

 

[Paul Lalli]

Hey Josef:

I think I am polite enough

.... there's some irony...

to express my appreciaton to all the thoughts I got.
Of course, including your thought.
Why do I need to specifically to quote anything?
Think about it, man.

Please do some thinking of your own. Not everyone reads a newsgroup
with threadding enabled. Even those of us who do are not guaranteed to
have seen the post to which you are replying. It's entirely possible
that your "thanks" showed up before the posts to which you're replying,
or that the posts to which you're replying simply never showed up at
all. That's how Usenet works. And that's why it's been standard
convention to quote material to which you're replying for *decades*.

Please do a bit of reasearch into what you're talking about before
accusing someone far more familiar with the medium of not thinking.

Paul Lalli

 

[seanjao]

And that's why it's been standard
convention to quote material to which you're replying for *decades*.

If so, please let an experienced user, like you to show me how to
express my appreciation
to all of the thoughts posted for this topic.

Thank you.
Sean Jao

 

[Ted Zlatanov]

If so, please let an experienced user, like you to show me how to
express my appreciation to all of the thoughts posted for this
topic.

Next time you reply with "thanks" make sure to quote enough so that a
random person could look at your message by itself and understand
what's happening. Welcome to comp.lang.perl.misc

Ted