On 04/07/2019 06:31, Sven Barth via fpc-devel wrote:
Am 04.07.2019 um 01:57 schrieb J. Gareth Moreton:

While I like the idea in principle, one thing that I'm a bit worried about is how whitespace is handled, like what counts for a leading or trailing space in the string when between lines, since Pascal parsers (and those for many other languages) traditionally, I believe, discard everything following the last non-whitespace character in a line.  Also, with the backtick suggestion, what should one do if they wish to include a control character (e.g. a linefeed) or the backtick character itself?

Whitespace is indeed an important point. I myself pay quite some attention to nice identation and with multiline strings that will probably break:

=== code begin ===

const SomeString = `Whatever
                                     bar
                                     blubb
                                     foobar`;

=== code end ===

That's how I also inline my normal multiline strings that I separate with sLineBreak. However to get the same result with this proposed new feature I'd have to do this:

=== code begin ===

const SomeString = `Whatever
bar
blubb
foobar`;

=== code end ===

Which looks just ugly.


I can definitely see that being a sticking point for such a feature with no easy way to solve it, except to introduce a $INCLUDESTRINGFILE compiler directive, since if the string is so long that it requires the spanning of multiple lines and not using the existing means of extending a Pascal string onto multiple lines, then it probably should be stored in an external text file to be merged upon compilation.

It's a shame, because I like the feature in principle, but the whitespace problem is a bit of a deal-breaker for me.  Also, things like trailing spaces and the line terminators being either #10 or #10#13 may cause a lot of problems if the string has to be known exactly (e.g. for cryptographic hash generation).

Gareth aka. Kit


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