Re^6: Global substitution of non-base-plane Unicode characters

TIMTOWTDI.

In Perl, printing exactly one character—a Unicode byte order mark—and nothing else is a special case of formatted printing, vis-à-vis generalized printing of lines of text with built-in programming conveniences (e.g., automatic newline handling).

Would you find this troublesome?

    printf '%s', "\N{U+FEFF}";
[download]

Or this?

    printf '%c', 0xfeff;
[download]

Jim

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Re^7: Global substitution of non-base-plane Unicode characters by kcott (Archbishop) on Feb 25, 2014 at 00:30 UTC
This really has nothing to do with what, if anything, I find "troublesome". You hit the nail on the head with your earlier post: "Using `printf` in this admittedly unusual way ...". Writing code in an unusual way (without any indication of why this was done) makes future maintenance error-prone. Yes, there's more than one way to do it. Here's another, that simply adds a comment, that I would consider better: `printf "\x{FEFF}"; # printf() so $\ is not appended` [download] -- Ken	[reply] [d/l] [select]

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Re^7: Global substitution of non-base-plane Unicode characters
by kcott (Archbishop) on Feb 25, 2014 at 00:30 UTC

This really has nothing to do with what, if anything, I find "troublesome".

You hit the nail on the head with your earlier post: "Using printf in this admittedly unusual way ...".

Writing code in an unusual way (without any indication of why this was done) makes future maintenance error-prone.

Yes, there's more than one way to do it. Here's another, that simply adds a comment, that I would consider better:

printf "\x{FEFF}";  # printf() so $\ is not appended
[download]

-- Ken

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