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They long since lifted the 'only one lvalue ref' limitation. This is 5.10.1:

$s = 'abcdefghijklmnopqrstuvwxyz';; @r = map \substr( $s, $_*4, 2), 0..6;; $$_ = uc $$_ for @r;; say $s;; ABcdEFghIJklMNopQRstUVwxYZ say $];; 5.010001

It does have its limitations though. (Unsurprisingly) The lvalue refs do not adjust to accommodate replacements that alter the length of the string:

$$_ = $_ for @r;; say $s;; REF(REF(REF(REF(REF(REF(REF(0x3e82050)3e821e8)3e82260)3e820e0)11c458)3 +e820c8)335dc0)cdEFghIJklMNopQRstUVwxYZ

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In reply to Re^3: Is there a module for object-oriented substring handling/substitution? (2 substrs) by BrowserUk
in thread Is there a module for object-oriented substring handling/substitution? by smls

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