Re^2: Problems with a regex?

in reply to Re: Problems with a regex?
in thread Problems with a regex?

To /^\Q$stack\E$/ (emphasis on the \E).

And to the OP, note that your first RE can be simplified:

   #if ($line =~ m/set\sservice\s(\".+\").?/) {
    if ($line =~ m/set\sservice\s(".+")/) {
[download]

No need to escape quotes; nor to match beyond what you are interested in. (I often see REs with a useless .* at the end.)

Comment on Re^2: Problems with a regex? Select or Download Code
Re^3: Problems with a regex? by BrowserUk (Pope) on Aug 14, 2012 at 16:05 UTC
To `/^\Q$stack\E$/` (emphasis on the \E). Why? If the \E comes at the end of the regex it is completely redundant. A pointless, useless addition. With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday' Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. "Science is about questioning the status quo. Questioning authority". In the absence of evidence, opinion is indistinguishable from prejudice. The start of some sanity?	[reply] [d/l]
Re^4: Problems with a regex? by hbm (Hermit) on Aug 14, 2012 at 16:38 UTC
I would think so too, reading the docs. But with `/^\Q$stack\E$/`, I get: `Service name: "MY NEW SERVICE (TMP)" Popping stack: . Adding to stack: "MY NEW SERVICE (TMP)" Service name: "MY NEW SERVICE (TMP)" It's on stack, keep compiling` [download] And with `/^\Q$stack$/`, I get: `Service name: "MY NEW SERVICE (TMP)" Popping stack: . Adding to stack: "MY NEW SERVICE (TMP)" Service name: "MY NEW SERVICE (TMP)" Popping stack: "MY NEW SERVICE (TMP)". Adding to stack: "MY NEW SERVIC +E (TMP)"` [download] More simply: `$ perl -e "$x=$_='()';print/^\Q$x\E$/?YES:NO" YES $ perl -e "$x=$_='()';print/^\Q$x$/?YES:NO" NO` [download]	[reply] [d/l] [select]
Re^5: Problems with a regex? by BrowserUk (Pope) on Aug 14, 2012 at 18:06 UTC
Mea culpa! You're right. Escaping the $ makes the difference. With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday' Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error. "Science is about questioning the status quo. Questioning authority". In the absence of evidence, opinion is indistinguishable from prejudice. The start of some sanity?	[reply]


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Re^2: Problems with a regex?

How many continents have you visited?