On 30/09/2019 16:36, Jim Laskey wrote:
In line.
On Sep 30, 2019, at 12:29 PM, Maurizio Cimadamore
<maurizio.cimadam...@oracle.com
<mailto:maurizio.cimadam...@oracle.com>> wrote:
Hi,
in general I see where the enhancements are coming from - but I do
have some comments.
One is pedagogical; I think a world where single line strings are
denoted by a single double quote, whereas multi line strings are
denoted by triple double quotes is a relatively wimple world for the
user to grok. This proposal effectively blurs the line between the
two variants, as now you can (in the degenerate case where all lines
in a text block ends with '\') express a single line string with a
text block syntax - which I understand is the part of the goal, but...
And String s = "aa\nbb\ncc\n" is truly single line? I think they are
just the same thing wearing different clothes.
I see where you are coming from. While I'm not necessarily opposed, I'd
be curious to see if this add-on would have repercussions on how the
text block feature is reasoned about by programmers, especially ones
coming to Java for the first time.
The other perplexity is on the use of \s with text blocks; I don't
get why the output in your example ends up being:
red<one space><new line>green<one space><new line>blue<one
space><blue line>
Why is the space at the left of the '\s' being ignored? In fact, '\s'
is the _only_ thing you can put in that place that will cause the
previous space to be ignored and dropped on the floor, which makes me
uncomfortable. I think that, to get the output you want, '\s' should
be close to the end of red/green/blue - if, on the other hand, if you
add space and _then_ you add a '/s', I don't think we should treat
this differently from adding space and then some _random_ character -
in which case all the space in between will be preserved.
This is a readability issue in the edits. It's actually
"red....\ngreen..\nblue...\n". I'll fix.
Phew :-)
Question - can `/s` appear _before_ the end of a line in a text block?
If so, what happens?
Maurizio
Maurizio
On 30/09/2019 12:45, Jim Laskey wrote:
During the discussion on Text Blocks, several of you stated a need
for a line continuation construct. I have since created a CSR to
propose the creation of two new escape sequences: \<line terminator>
and \s.
https://bugs.openjdk.java.net/browse/JDK-8227870
Please review and comment here.
Cheers,
-- Jim
