Capitalize the 1st letter of each word

[TASdvlper]

All,

Say I have a array of words:

my @array = qw ( foo bar foobar barfoo 1 2 3 );

Is there a regex I can do to make sure each word starts with a capital letter ? So, my new array would be.

my @array1 = qw ( Foo Bar Foobar Barfoo 1 2 3 );

Thanks ....

janitored by ybiC: Corrected misspelling in title for better searching

[Zaxo]

A regex is best suited to altering the array in place s/(\w)(\w*)/\U$1\E$2/ for @array; You can use a regex, but to make a new array with initial caps, ucfirst is handier, my @arrayl = map {ucfirst} @array; The regex can also be applied to a string with the /g flag

$_ = 'foo bar foobar barfoo 1 2 3';
s/(\w)(\w*)/\U$1\E$2/g;
print;
# Foo Bar Foobar Barfoo 1 2 3

[flatline]

An easier regex/substitution would be:

my @array = qw/one Two three four five/;
s/(.)/\u\L$1/ for @array;

[ysth]

Not sure if you mean a regex to apply to your perl source to change the code or something to put in your code to change @array1.

If the latter,

my @array1 = map ucfirst, @array;

does it; no regex necessary.

[atcroft]

If you hit the Library, under Perl Functions, Alphabetical, you'll find ucfirst() and lcfirst(), which will upper- or lower-case (respectively) the first character of a given word. So you could do something along the lines of:

my @array = qw( foo bar foobar barfoo 1 2 3 );

foreach my $i (0 .. $#array) {
    $array[$i] = ucfirst($array[$i]);
}

I suspect a regex in this case is actually overkill.... HTH....

[mcogan1966]

Or even faster:

foreach (@array) { ucfirst($_); }

In this case, $_ will point to the actual element in the array.

[BrowserUk]

Unfortunately, that doesn't work

my @words = qw[ the quick brown fox ];

foreach (@words) { ucfirst($_); };
Useless use of ucfirst in void context at ...

It would have to be

foreach (@words) { $_ = ucfirst($_); }

Or, more simple

$_ = ucfirst for @words;

print for @words;
The
Quick
Brown
Fox

[KPeter0314]

I remembered seeing this in perldoc (it covers the first letter only scenario too): How do I capitalize all the words on one line

The exercise to parse through your array would be another issue.

update: Don't know where my mind was but I forgot about ucfirst. Thanx ysth.

[thelenm]

my @array = qw(foo bar foobar barfoo 1 2 3);
my @caps = map "\u$_", @array;
print "@caps\n";