regexp: s/// vs s"""

Anonymous Monk has asked for the wisdom of the Perl Monks concerning the following question:

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Re: regexp: s/// vs s""" by merlyn (Sage) on Feb 21, 2006 at 14:41 UTC
From perlop: If "/" is the delimiter then the initial "m" is optiona +l. With the "m" you can use any pair of non-alphanumeric, non-w +hite- space characters as delimiters. This is particularly u +seful for matching path names that contain "/", to avoid LTS +(leaning toothpick syndrome). If "?" is the delimiter, then the + match- only-once rule of "?PATTERN?" applies. If "'" is the d +elim- iter, no interpolation is performed on the PATTERN. ... If the delimiter chosen is a single quote, no interpola +tion is done on either the PATTERN or the REPLACEMENT. Otherwi +se, if the PATTERN contains a $ that looks like a variable rat +her than an end-of-string test, the variable will be interpolate +d into the pattern at run-time. If you want the pattern compi +led only once the first time the variable is interpolated, use t +he "/o" option. If the pattern evaluates to the empty string, +the last successfully executed regular expression is used instea +d. See perlre for further explanation on these. See perllocal +e for discussion of additional considerations that apply when + "use locale" is in effect. [download] -- Randal L. Schwartz, Perl hacker Be sure to read my standard disclaimer if this is a reply.	[reply] [d/l]
Re: regexp: s/// vs s""" by Corion (Patriarch) on Feb 21, 2006 at 14:40 UTC
See the discussion of the quote and quote-like operators in `perldoc perlop`. `s///` and `s"""` are equivalent.	[reply] [d/l] [select]
Re: regexp: s/// vs s""" by inman (Curate) on Feb 21, 2006 at 14:42 UTC
The first character following the s is used as a delimiter. If the character is normally paired, a matching pair is used. `s/match/replace/; #The conventional way s\|match\|replace\|; #Useful for urls that contain /s s(match)(replace); #matched braces` [download] This gives you some flexibility with respect to the code that you are working with. Take care when using characters that are also used in regex notation.	[reply] [d/l]
Re: regexp: s/// vs s""" by CountOrlok (Friar) on Feb 21, 2006 at 14:42 UTC
from perlop: If "/" is the delimiter then the initial m is optional. With the m you can use any pair of non-alphanumeric, non-whitespace characters as delimiters. This is particularly useful for matching path names that contain "/", to avoid LTS (leaning toothpick syndrome). If "?" is the delimiter, then the match-only-once rule of ?PATTERN? applies. If "'" is the delimiter, no interpolation is performed on the PATTERN. -imran	[reply]