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I have a string in the following format:

\main\stream\foo.h\3

it may have more or less "sections", but will always end with a slash followed by an integer. Other examples include:

\main\stream2309\stream222\foo.c\45

\main\foo.c\9

I need to, in Perl, increment the number at the end of the string and leave the rest alone. I found an example on this site that does exactly what I want to do (see Increment a number in a string in with regex) only the language is Javascript. The solution given was:

.replace(/\d+$/,function(n) { return ++n })

I need to do the same thing in Perl.

Community
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user396162
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2 Answers2

10

You can use the /e regex modifier to put executable code in your replacement string.

Something like:

$string =~ s/(\d+)$/$1 + 1/e;

should work.

friedo
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2

Try $var =~ s/(\d+$)/($1 + 1)/e

friedo
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James O'Sullivan
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