函数修剪字符串的前导和尾随空格

Question

Is there a built-in function to trim leading and trailing whitespace such that trim(" hello world ") eq "hello world"?

转载于:https://stackoverflow.com/questions/4597937/perl-function-to-trim-string-leading-and-trailing-whitespace

Answer 1

Here's one approach using a regular expression:

$string =~ s/^\s+|\s+$//g ;     # remove both leading and trailing whitespace

Perl 6 will include a trim function:

$string .= trim;

Source: Wikipedia