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One reason is to verbally differentiate it from the assignment operator. Syntactically, there is already a notable difference. A common perl mistake is to state the following:

$var = /$pattern/;

which actually checks the pattern against the global special default variable $_ and sets $var to either "" or 1 (result of evaluating match). Probably not what the hapless programmer meant to say. I suppose one could read it as:

matches against $var =~ /$pattern/,
substitutes against $var =~ s/$pattern/$replacement/,
or even transliterates against (yikes, that's a mouthful) $var =~ tr/a-z/A-Z/.

but the word bind will work nicely for all three.

Another reason may be just because Larry Wall felt like it at the time. ;-)

Cheers,
Kristina

In reply to Re: Why do we say the =~ operator "binds"? by krusty
in thread Why do we say the =~ operator "binds"? by Cody Pendant

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