On Thu, Dec 05, 2002 at 07:54:09PM +0200, arcadi shehter wrote: > my take : > > non interpolating construct is a sequence of characters enclosed in > delimiters for which perl switch off *any* perl-programm-like > interpretation of the content. since perl have to find the end of > this "I-am-not-looking" phase , the delimiter itself have to appear inside the > string prefixed by backslash "\" and since now "\" itself acquire > special "assignment" , if it is meant to be part of the string it have to > appear backslash-prefixed "\\" itself. In principle *any* character can be > backslashed *inside* the string , but only for delimiter and the > backslash this is absolutely necessary. > > in this sence interpolated string is "language inside language" . > hence : > * some characters ( or words ) have to be "reserved in the inner > language in order for outer language to know where the inner > language text stops. > * this is achieved by chosing a prefix , and any character from outer > language is represented in the inner languge by the same character > with prefix - two character sequance > * for all *except* two characters -- the delimiter and the prefix -- > we can make syntactic sugar of making the character to "mean" > itself . > > > > > '\ \ \h\e\l\l\o\ \ ' > > '\'\\\ \\\ \\\h\\\e\\\l\\\l\\\o\\\ \\\ \''
This is wrong. '\ \ \h\e\l\l\o\ \ ' gives you a string with nine backslashes. andrew -- Capricorn: (Dec. 22 - Jan. 19) After all is said and done, no one will have said or done anything involving you in any way.
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