Re^2: if elsif else question

There are several things wrong with /5.1/

"." inside a regex is special - it matches any character except "\n".
the regex will match any string that contains the sequence 5, "any char except \n", 1. ie it will match (for example) "501", "5:1", "I have 5.1 experience points"

The solution is to anchor the regex at the start and end of the string, and to escape ".": /^5\.1$/

eq is a far better operator when you want to test if two strings are equal!

See perlretut for a regexp tutorial and perlre for the full monty on regular expressions.

Unless I state otherwise, all my code runs with strict and warnings

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Re^3: if elsif else question by sub_chick (Hermit) on Jun 02, 2008 at 19:45 UTC
My mistake on forgetting to add the escape char: `'\'` before `'.'` :) Thanks. Es gibt mehr im Leben als Bücher, weißt du. Aber nicht viel mehr. - (Die Smiths)"	[reply] [d/l] [select]
Re^3: if elsif else question by linuxer (Curate) on Jun 02, 2008 at 19:37 UTC
oops, how did I miss that special regex meaning of "."?	[reply]