Well, one thing about them that might catch some by surprise is that a here-doc comes in two pieces and those two pieces can end up pretty far apart. Take an example: 

print <<FOO, <<'BAR';
Usage: $0 [arguments]
FOO
This program doesn't do much.
BAR

[download]
If here-docs were just like strings and didn't come in two parts, then you'd want to write that more like: 
print <<FOO
Usage: $0 [arguments]
FOO, <<'BAR'
This program doesn't do much.
BAR;

[download]
which doesn't work. You can write it like this: 
print <<FOO
Usage: $0 [arguments]
FOO
, <<'BAR'
This program doesn't do much.
BAR
;

[download]
but I think the first example is easier to read.

        - tye (but my friends call me "Tye")

In reply to (tye)Re: here doc by tye
in thread here doc by pawel_guz

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