Re: Re: Using a variable as pattern in substitution

Thanks for that, one thing when I first tried it it didn't work. My stop words were in a text file, one per line I had to

chop $stopwords

to get it to work.

One more thing what does the \b mean?

Stew

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Re (3): Using a variable as pattern in substitution by VSarkiss (Monsignor) on Jun 05, 2002 at 16:21 UTC
You can chomp every element in the array when you slurp the file: `chomp(@stopwords = <FILE>);`(As a side note, in general, `chomp` is preferable to `chop`.) The `\b` says to look for a word boundary. In other words, if your target string is part of another word, the `\b` will keep it from matching. `my $target = "another"; $target =~ /other/; # this matches $target =~ /\bother/; # this doesn't` [download] You can read more about it in the perlre document.	[reply] [d/l] [select]
Re^3: Using a variable as pattern in substitution by Aristotle (Chancellor) on Jun 05, 2002 at 17:12 UTC
Avoid `chop` unless you want to remove the last character from every line of your file. Are you sure the last one ends with a newline? If not, oops.. there goes a character of data. `chomp` is not so indiscriminate. Makeshifts last the longest.	[reply]